332354 + Interview Questions in Secondary School in Math

1.	In Mary's English class, the ratio of thenumber of students receiving A grade tothe total number of students is 6 : 25 andin John's English class, the above ratio is5:20. Which class has a better record ofA grades?
Answer» Answer: Mary's class has better record Step-by-step EXPLANATION: MARK me BRAINLIEST and some THNX please don't forget

1.

In Mary's English class, the ratio of thenumber of students receiving A grade tothe total number of students is 6 : 25 andin John's English class, the above ratio is5:20. Which class has a better record ofA grades?

Answer»

Answer:

Mary's class has better record

Step-by-step EXPLANATION:

MARK me BRAINLIEST and some THNX please don't forget

Discussion

2.	The composite number between 15 and 30 are_,_,_,_,_,_,_,_,_and_.
Answer» Answer: , 6, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 22, 24, 25, 26, 27, 28, 30, 32, 33, 34, 35, 36, 38, 39, 40, 42, 44, 45, 46, 48, 49, 50, 51, 52, 54, 55, 56, 57, 58, 60, 62, 63, 64, 65, 66, 68, 69, 70, 72, 74, 75, 76, 77, 78, 80, 81,82, 84, 85, 86, 87, 88, 90, 91, 92, 93, 94, 95, 96, 98, 99, 100.

2.

The composite number between 15 and 30 are_,_,_,_,_,_,_,_,_and_.

Answer»

Answer:

, 6, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 22, 24, 25, 26, 27, 28, 30, 32, 33, 34, 35, 36, 38, 39, 40, 42, 44, 45, 46, 48, 49, 50, 51, 52, 54, 55, 56, 57, 58, 60, 62, 63, 64, 65, 66, 68, 69, 70, 72, 74, 75, 76, 77, 78, 80, 81,82, 84, 85, 86, 87, 88, 90, 91, 92, 93, 94, 95, 96, 98, 99, 100.

Discussion

3.	Square root of 15217801
Answer» ANSWER: $\sqrt{152117801} = ?$ $3901$

3.

Square root of 15217801

Answer»

ANSWER:

$\sqrt{152117801} = ?$

$3901$

Discussion

4.	Lali can do 16 problem in to minutes. Lovleencan do in 10 minutes. How many problemwill be solved by both of them together5 minutes.?
Answer» ANSWER: They would together solve 48 PROBLEMS.

4.

Lali can do 16 problem in to minutes. Lovleencan do in 10 minutes. How many problemwill be solved by both of them together5 minutes.?

Answer»

ANSWER:

They would together solve 48 PROBLEMS.

Discussion

5.	draw a frequency polygon for the following frequency distribution in which class interval =1-10,11-20,21-30,31-40,42-50,51-60 and frequency is 8,3,12,12,2,7
Answer» Answer: Construct a histogram for the given data. Mark the mid point of the tops of rectangles of histogram and join these points by line SEGMENTS. To complete the polygon, mark two classes (−10 to 0) and (80 to 90). Join the end point of the line segments to the mid points of these two classes. The CURVE so OBTAINED is a frequency polygon.

5.

draw a frequency polygon for the following frequency distribution in which class interval =1-10,11-20,21-30,31-40,42-50,51-60 and frequency is 8,3,12,12,2,7

Answer»

Answer:

Construct a histogram for the given data. Mark the mid point of the tops of rectangles of histogram and join these points by line SEGMENTS. To complete the polygon, mark two classes (−10 to 0) and (80 to 90). Join the end point of the line segments to the mid points of these two classes. The CURVE so OBTAINED is a frequency polygon.

Discussion

6.	Find the factors of the polynomial
Answer» Step-by-step EXPLANATION: X2 −12xy+24y 2 =X 2 −12xy−2xy+24y 2 =x(x−12y)−2y(x−12y) =(x−2y)(x−12y) FACTOR are,(x−2y),(x−12y)

6.

Find the factors of the polynomial

Answer»

Step-by-step EXPLANATION:

X2

−12xy+24y

2

=X

2

−12xy−2xy+24y

2

=x(x−12y)−2y(x−12y)

=(x−2y)(x−12y)

FACTOR are,(x−2y),(x−12y)

Discussion

7.	Length=16cm breath=10cm area=
Answer» Answer: 160 LENGTH X BREATH is AREA

7.

Length=16cm breath=10cm area=

Answer»

Answer:

160 LENGTH X BREATH is AREA

Discussion

8.	B) Write the correct integers in the blanks . i) (4/5) /9 = (4/9) / ______________ .
Answer» Step-by-step explanation: b) WRITE the CORRECT integers in the BLANKS . i) (4/5) /9 = (4/9) / 5

8.

B) Write the correct integers in the blanks . i) (4/5) /9 = (4/9) / ______________ .

Answer»

Step-by-step explanation:

b) WRITE the CORRECT integers in the BLANKS .

i) (4/5) /9 = (4/9) / 5

Discussion

9.	Please solve it. No useless answer
Answer» I HOPE ANSWER is 3/4 this answer is CORRECT

9.

Please solve it. No useless answer

Answer»

I HOPE ANSWER is 3/4 this answer is CORRECT

Discussion

10.	The cooking time for a ham is [latex]\frac{2}{5}[/latex] of an hour for each pound. What time should you start cooking a ham that weighs 12[latex]\frac{3}{4}[/latex] pounds so that it is done at 4:45 P.M.
Answer» Answer: *PLS* *MARK* ME *BRAINLIEST* Step-by-step explanation: First of all, LET's WORK out 2/5 of an hour.2/5 x 60(minutes)= 24 minutes.Now that we know the minutes required for each pound of HAM, we multiply the minutes by the pounds. 12x3/4 = 12.75 12.75 x 24 = 306(minutes) Now we need to convert the minutes into hours: 306 / 60 = 5.1 .1 of an hour = 6 minutes Therefore, we cook the ham for 5 hours and 6 minutes. B) 4:45pm = 16 hours and 45 minutes 16h 45m - 5h 6m = 11.39: Therefore you should start cooking at 11.39am

10.

The cooking time for a ham is [latex]\frac{2}{5}[/latex] of an hour for each pound. What time should you start cooking a ham that weighs 12[latex]\frac{3}{4}[/latex] pounds so that it is done at 4:45 P.M.

Answer»

Answer:

PLS MARK ME BRAINLIEST

Step-by-step explanation:

First of all, LET's WORK out 2/5 of an hour.2/5 x 60(minutes)= 24 minutes.Now that we know the minutes required for each pound of HAM, we multiply the minutes by the pounds.

12x3/4 = 12.75

12.75 x 24 = 306(minutes)

Now we need to convert the minutes into hours:

306 / 60 = 5.1

.1 of an hour = 6 minutes

Therefore, we cook the ham for 5 hours and 6 minutes.

B)

4:45pm = 16 hours and 45 minutes

16h 45m - 5h 6m = 11.39:

Therefore you should start cooking at 11.39am

Discussion

11.	Find the zeroes of x² + 5x+6please answer fast..
Answer» Step-by-step EXPLANATION: X 2 +5x+6=0 x 2 +2x+3x+6=0 x(x+2)+3(x+3)=0 (x+2)(x+3)=0 x=−2,−3 ∴α=−2,β=−3 α+β=− a b −2−3=− 1 5 −5=−5 αβ= a c (−2)(−3)= 1 6 6=6

11.

Find the zeroes of x² + 5x+6please answer fast..

Answer»

Step-by-step EXPLANATION:

X

2

+5x+6=0

x

2

+2x+3x+6=0

x(x+2)+3(x+3)=0

(x+2)(x+3)=0

x=−2,−3

∴α=−2,β=−3

α+β=−

a

b

−2−3=−

1

5

−5=−5

αβ=

a

c

(−2)(−3)=

1

6

6=6

Discussion

12.	a bookseller bought a book for rupees 150 and spend rupees 50 on its binding he sold it for rupees 240 find his gain %
Answer» Answer: 20 Step-by-step EXPLANATION: TOTAL CP=200 he SOLD for SP = 240 profit =sp-cp = 40 profit % = (sp-cp)/sp * 100 =20

12.

a bookseller bought a book for rupees 150 and spend rupees 50 on its binding he sold it for rupees 240 find his gain %

Answer»

Answer:

20

Step-by-step EXPLANATION:

TOTAL CP=200

he SOLD for SP = 240

profit =sp-cp

= 40

profit % = (sp-cp)/sp * 100

=20

Discussion

13.	two trains leave a railway station at the same time. the first train travel towards west and the second train towards north. the first travels 5 km/hr faster than the second train. if after two hours they are 50 km. apart, find the average speed of each train.
Answer» Let the average spped of the SECOND train be x km/h. Thus, the speed of the first train will be (x+5) km/h. Distance TRAVELLED by the first train in TWO hours =2(x+5) km/h Distance travelled by the second train in two hours =2x km/h Using pythagoras theorem, we have 4x 2 +4(x+5) 2 =50 2 4x 2 +4x 2 +40x+100=2500 8x 2 +40x−2400=0 x 2 +5x−300=0 (x−15)(x+20)=0 x=15,−20 Ignore the negative VALUE of the speed. We have, Speed of the second train be 15 km/h. Spped of the first train be (15+5)= 20 km/h

13.

two trains leave a railway station at the same time. the first train travel towards west and the second train towards north. the first travels 5 km/hr faster than the second train. if after two hours they are 50 km. apart, find the average speed of each train.

Answer»

Let the average spped of the SECOND train be x km/h.

Thus, the speed of the first train will be (x+5) km/h.

Distance TRAVELLED by the first train in TWO hours =2(x+5) km/h

Distance travelled by the second train in two hours =2x km/h

Using pythagoras theorem, we have

4x

2

+4(x+5)

2

=50

2

4x

2

+4x

2

+40x+100=2500

8x

2

+40x−2400=0

x

2

+5x−300=0

(x−15)(x+20)=0

x=15,−20

Ignore the negative VALUE of the speed. We have,

Speed of the second train be 15 km/h.

Spped of the first train be (15+5)= 20 km/h

Discussion

14.	(एस०एस०सीक परीक्षा7. चाय के मूल्य में 10% कमी होने पर एक व्यापारी ₹ 22500 में 25 किग्रा० चाय अधिक खरीद सकतामूल्य प्रति किग्रा० कितना है?(एस०एस०सी० परीक्षा(a)₹70(b) ₹80(c) ₹90(d)₹100
Answer» ANSWER: ₹100 YE hai answer iska OK a UNDERSTAND.

14.

(एस०एस०सीक परीक्षा7. चाय के मूल्य में 10% कमी होने पर एक व्यापारी ₹ 22500 में 25 किग्रा० चाय अधिक खरीद सकतामूल्य प्रति किग्रा० कितना है?(एस०एस०सी० परीक्षा(a)₹70(b) ₹80(c) ₹90(d)₹100

Answer»

ANSWER:

₹100 YE hai answer iska OK a UNDERSTAND.

Discussion

15.	Sonal bought 3 mangoes for rupees 24 she wanted to buy 8 mongoes for sister, hour much she want ?
Answer» Answer: 64 ₹ Step-by-step explanation: 3 MANGOES = ₹24 1 MANGO = 24÷3 = 8 8 mangoes = 8×8 =64₹

15.

Sonal bought 3 mangoes for rupees 24 she wanted to buy 8 mongoes for sister, hour much she want ?

Answer»

Answer:

64 ₹

Step-by-step explanation:

3 MANGOES = ₹24

1 MANGO = 24÷3 = 8

8 mangoes = 8×8

=64₹

Discussion

16.	2.If the ages of Ravi, Raj and Ram are three consective multiples of three and the sum of their ages is 36then find the age of Raj.2. ਜੇਕਰ ਰਵੀ,ਰਾਜ ਅਤੇ ਰਾਮ ਦੀਆਂ ਉਮਰਾਂ ਤਿੰਨ ਦੇ ਲਗਾਤਾਰ ਗੁਣਜ ਹੋਣ ਅਤੇ ਉਹਨਾਂ ਦੀਆਂ ਉਮਰਾਂ ਦਾ ਜੋੜ 36 ਹੋਵੇ ਤਾਂਰਾਜ ਦੀ ਉਮਰ ਪਤਾ ਕਰੋ
Answer» The GREATEST of the THREE numbers is 15. The other two numbers are 9 and 12.

16.

2.If the ages of Ravi, Raj and Ram are three consective multiples of three and the sum of their ages is 36then find the age of Raj.2. ਜੇਕਰ ਰਵੀ,ਰਾਜ ਅਤੇ ਰਾਮ ਦੀਆਂ ਉਮਰਾਂ ਤਿੰਨ ਦੇ ਲਗਾਤਾਰ ਗੁਣਜ ਹੋਣ ਅਤੇ ਉਹਨਾਂ ਦੀਆਂ ਉਮਰਾਂ ਦਾ ਜੋੜ 36 ਹੋਵੇ ਤਾਂਰਾਜ ਦੀ ਉਮਰ ਪਤਾ ਕਰੋ

Answer»

The GREATEST of the THREE numbers is 15.

The other two numbers are 9 and 12.

Discussion

17.	C.The monthly pocket expenses (in) of 30 students of a class are given below.120, 150, 350, 260, 330, 550, 440, 330, 240, 320, 110, 140, 340, 420, 320, 150, 110, 490,360, 300, 210, 200, 250, 340, 250, 170, 450, 370, 390, 540Construct an exclusive frequency distribution table
Answer» So so so SORRY I don't KNOW

17.

C.The monthly pocket expenses (in) of 30 students of a class are given below.120, 150, 350, 260, 330, 550, 440, 330, 240, 320, 110, 140, 340, 420, 320, 150, 110, 490,360, 300, 210, 200, 250, 340, 250, 170, 450, 370, 390, 540Construct an exclusive frequency distribution table

Answer»

So so so SORRY I don't KNOW

Discussion

18.	Hcf of 98&126 answer the following
Answer» Answer: gcf, hcf, GCD (98; 126) = 14 = 2 × 7: greatest (highest) common factor (DIVISOR), CALCULATED.

18.

Hcf of 98&126 answer the following

Answer»

Answer:

gcf, hcf, GCD (98; 126) = 14 = 2 × 7: greatest (highest) common factor (DIVISOR), CALCULATED.

Discussion

19.	The difference between two numbers is 48. the ratio of the two numbers is 7:3. find the two numbers
Answer» Step-by-step explanation: let TWO numbers be X1 and X2 and follow the RELATION

19.

The difference between two numbers is 48. the ratio of the two numbers is 7:3. find the two numbers

Answer»

Step-by-step explanation:

let TWO numbers be X1 and X2

and follow the RELATION

Discussion

20.	If the sides of a triangle are 3 cm, 4 cm and 5 cm respectively, determine whether the tangleis a right angled triangle or not?In the given figure,L = 35º. Find m(arc MAN).35M MNA
Answer» ANSWER: Nope Step-by-step EXPLANATION:

20.

If the sides of a triangle are 3 cm, 4 cm and 5 cm respectively, determine whether the tangleis a right angled triangle or not?In the given figure,L = 35º. Find m(arc MAN).35M MNA

Answer»

ANSWER:

Nope

Step-by-step EXPLANATION:

Discussion

21.	State and prove perpendicular theorem
Answer» ANSWER: *State and Prove Theorem of Perpendicular Axis* State and Prove Theorem of Perpendicular AxisPerpendicular axis theorem statement - The perpendicular axis theorem STATES that the moment of inertia, for any axis which is perpendicular to the plane, is equal to the sum of any TWO perpendicular axes of the BODY which INTERSECTS with the first axis.

21.

State and prove perpendicular theorem

Answer»

ANSWER:

State and Prove Theorem of Perpendicular Axis

State and Prove Theorem of Perpendicular AxisPerpendicular axis theorem statement - The perpendicular axis theorem STATES that the moment of inertia, for any axis which is perpendicular to the plane, is equal to the sum of any TWO perpendicular axes of the BODY which INTERSECTS with the first axis.

Discussion

22.	Can anyone please answer the questions 6(a) and 6(b) ?
Answer» ANSWER: I am not READ this CHAPTER

22.

Can anyone please answer the questions 6(a) and 6(b) ?

Answer»

ANSWER:

I am not READ this CHAPTER

Discussion

23.	Solve it. No useless answer
Answer» ANSWER: WRITE it properly Step-by-step EXPLANATION: can't understand

23.

Solve it. No useless answer

Answer»

ANSWER:

WRITE it properly

Step-by-step EXPLANATION:

can't understand

Discussion

24.	What is the HCF of 45/90
Answer» Step-by-step explanation: The factors of 45 are 1, 3, 5, 9, 15 and 45. The factors of 90 are 1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45 and 90. So, the Greatest Common FACTOR for these numbers is 45 because it divides all them without a remainder.

24.

What is the HCF of 45/90

Answer»

Step-by-step explanation:

The factors of 45 are 1, 3, 5, 9, 15 and 45. The factors of 90 are 1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45 and 90. So, the Greatest Common FACTOR for these numbers is 45 because it divides all them without a remainder.

Discussion

25.	(12). At which sum will the simple interest at the rate of 3.75% per annum be 210rupees in 2 years?(a) 1580 rupees(b) 2400 rupees(c)2800 rupees(d)None of these.
Answer» THEREFORE, the SUM is RS. 5600 Hope this HELPS you. Mark me as brainliest. Thank you

25.

(12). At which sum will the simple interest at the rate of 3.75% per annum be 210rupees in 2 years?(a) 1580 rupees(b) 2400 rupees(c)2800 rupees(d)None of these.

Answer»

THEREFORE, the SUM is RS. 5600

Hope this HELPS you.

Mark me as brainliest.

Thank you

Discussion

26.	Ifa+b+c=0, find the value of(b+c)^2÷bc+(c+a)^2÷ca+(a+b)^2÷ab
Answer» Answer: $\frac{(b+c)^{2} }{bc} + \frac{(a+c)^{2} }{ac} + \frac{(a+b )^{2} }{ab}$ = 3 Step-by-step explanation: Given, a + b+ c = 0 We know that, b + c = -a ------------------(1) a + c = -b ------------------(2) a + b = -c ------------------(3) To find the value of, = $\frac{(b+c)^{2} }{bc} + \frac{(a+c)^{2} }{ac} + \frac{(a+b )^{2} }{ab}$ SOLUTION: Expanding using $(a+b)^{2} = (a^{2} +b^{2} + 2ab )$ formula, = $\frac{(a^{2} + b^{2} + 2ab) }{ab} + \frac{(b^{2} + c^{2} + 2bc) }{bc} +\frac{(a^{2} + c^{2} + 2ac) }{ac}$ = $(\frac{a^{2} }{ab} + \frac{b^{2} }{ab} +\frac{2ab}{ab} }) + (\frac{b^{2} }{bc} + \frac{c^{2} }{bc} +\frac{2bc}{bc} }) + (\frac{a^{2} }{ac} + \frac{c^{2} }{ac} +\frac{2ac}{ac} })$ Eliminating COMMON TERMS, = $(\frac{a}{b}+\frac{b}{a} + 2) + (\frac{b}{c}+\frac{c}{b} + 2) + (\frac{a}{c}+\frac{c}{a} + 2)$ = $(\frac{b}{a} +\frac{c}{a}+ \frac{a}{b} +\frac{a}{c} +\frac{b}{c} + 2+ 2 + 2)$ = $\frac{(b+c)}{a} + \frac{(a+c)}{b} +\frac{(a+b)}{c} + 6$ Putting (1),(2),(3) in the above equation, = $\frac{(-a)}{a} + \frac{(-b)}{b} +\frac{(-c)}{c} + 6$ = (-1) +(-1) +(-1) + 6 = 6 - 3 = 3 Hence, $\frac{(b+c)^{2} }{bc} + \frac{(a+c)^{2} }{ac} + \frac{(a+b )^{2} }{ab}$ = 3 Hope it helps...

26.

Ifa+b+c=0, find the value of(b+c)^2÷bc+(c+a)^2÷ca+(a+b)^2÷ab

Answer»

Answer:

$\frac{(b+c)^{2} }{bc} + \frac{(a+c)^{2} }{ac} + \frac{(a+b )^{2} }{ab}$ = 3

Step-by-step explanation:

Given,

a + b+ c = 0

We know that,

b + c = -a ------------------(1)

a + c = -b ------------------(2)

a + b = -c ------------------(3)

To find the value of,

= $\frac{(b+c)^{2} }{bc} + \frac{(a+c)^{2} }{ac} + \frac{(a+b )^{2} }{ab}$

SOLUTION:

Expanding using $(a+b)^{2} = (a^{2} +b^{2} + 2ab )$ formula,

= $\frac{(a^{2} + b^{2} + 2ab) }{ab} + \frac{(b^{2} + c^{2} + 2bc) }{bc} +\frac{(a^{2} + c^{2} + 2ac) }{ac}$

= $(\frac{a^{2} }{ab} + \frac{b^{2} }{ab} +\frac{2ab}{ab} }) + (\frac{b^{2} }{bc} + \frac{c^{2} }{bc} +\frac{2bc}{bc} }) + (\frac{a^{2} }{ac} + \frac{c^{2} }{ac} +\frac{2ac}{ac} })$

Eliminating COMMON TERMS,

= $(\frac{a}{b}+\frac{b}{a} + 2) + (\frac{b}{c}+\frac{c}{b} + 2) + (\frac{a}{c}+\frac{c}{a} + 2)$

= $(\frac{b}{a} +\frac{c}{a}+ \frac{a}{b} +\frac{a}{c} +\frac{b}{c} + 2+ 2 + 2)$

= $\frac{(b+c)}{a} + \frac{(a+c)}{b} +\frac{(a+b)}{c} + 6$

Putting (1),(2),(3) in the above equation,

= $\frac{(-a)}{a} + \frac{(-b)}{b} +\frac{(-c)}{c} + 6$

= (-1) +(-1) +(-1) + 6

= 6 - 3

= 3

Hence,

$\frac{(b+c)^{2} }{bc} + \frac{(a+c)^{2} }{ac} + \frac{(a+b )^{2} }{ab}$ = 3

Hope it helps...

Discussion

27.	4. Write down a rational number with numerator (-5) × (-4) and with denominator(28 - 27) (8 - 5). with procedure
Answer» Answer: SORRY I can't HELP I don't know maths Step-by-step explanation: someone will SURELY help you good LUCK

27.

4. Write down a rational number with numerator (-5) × (-4) and with denominator(28 - 27) (8 - 5). with procedure

Answer»

Answer:

SORRY I can't HELP I don't know maths

Step-by-step explanation:

someone will SURELY help you

good LUCK

Discussion

28.	15. In figure, O is the centre of the circle. PQ is a tangentto the circle and secant PAB passes through the centreO. If PQ = 5 cm and PA = 1 cm, then find the radiusof the circle5 cmP.1 cm A
Answer» In Circle with centre O , AO or OQ or OB all are radius Let the radius of circle be ‘X’ AO=OQ=x As Angle Q is 90 degree So, TRIANGLE PQO is Right angled triangle Side PO = PA + AO = 1 + x Therefore, By Pythagoras theorem PO^2 = OQ^2+ PQ^2 ( 1 + x ) = x^2 + 5^2 1 + x^2 + 2X = x^2 + 25 ( Subtracting x^2 from both side ) 1 + 2x = 25 2x =25 - 1 2x = 24 x = 12 There FORE measure of radius of circle is 12 cm ____Welcome____

Discussion

29.	The radii of two circles are 8 cm and 6 cm respectively. Findthe radius of the Circle haVing area equal to the sum ot theareas of the two circles.
Answer» LET the radius of required CIRCLE is R cm So, πr² = πr² + πr² r² = r²+r² r² = (8)² + (6)² r² = 64+36 r = √100 r = 10

29.

The radii of two circles are 8 cm and 6 cm respectively. Findthe radius of the Circle haVing area equal to the sum ot theareas of the two circles.

Answer»

LET the radius of required CIRCLE is R cm

So, πr² = πr² + πr²

r² = r²+r²

r² = (8)² + (6)²

r² = 64+36

r = √100

r = 10

Discussion

30.	0.750kg = dash gsolve the ans fast
Answer» Answer: 750 grams Step-by-step EXPLANATION: To convert KG into gram, MULTIPLY by 100 1kg = 1/100 g so, 0.750g = 0.750/100 = 750 g \ HOPE THIS HELPS !! :)

30.

0.750kg = dash gsolve the ans fast

Answer»

Answer:

750 grams

Step-by-step EXPLANATION:

To convert KG into gram, MULTIPLY by 100

1kg = 1/100 g

so, 0.750g = 0.750/100 = 750 g \

HOPE THIS HELPS !! :)

Discussion

31.	3) a) Find the value of following expressions. ii) ( -63)/ [(-20) + ( -1 )]
Answer» ANSWER: -63/-20-1 3.15-1 2.15 answer

31.

3) a) Find the value of following expressions. ii) ( -63)/ [(-20) + ( -1 )]

Answer»

ANSWER:

-63/-20-1

3.15-1

2.15

answer

Discussion

32.	Write the opposite of 90 km above sea level.
Answer» Answer: 90 KM below SEA level. Step-by-step EXPLANATION: HOPE it HELPS

32.

Write the opposite of 90 km above sea level.

Answer»

Answer:

90 KM below SEA level.

Step-by-step EXPLANATION:

HOPE it HELPS

Discussion

33.	Athematics For Chemists7--11를1DNE
Answer» Step-by-step EXPLANATION: wgagahhaakakakakakkaka

33.

Athematics For Chemists7--11를1DNE

Answer»

Step-by-step EXPLANATION:

wgagahhaakakakakakkaka

Discussion

34.	जर x=-1 हे 5x²+kx-7=0 या समीकरणाचे एक मूळ असेल तर k ची किंमत काढा.
Answer» ANSWER: K= -12 Step-by-step EXPLANATION: $5x {}^{2} + kx + 7 = 0 \\ 5(1) {}^{2} + k(1) + 7 = 0 \\ 5 + k + 7 = 0 \\ k + 12 = 0 \\ k = - 12$

34.

जर x=-1 हे 5x²+kx-7=0 या समीकरणाचे एक मूळ असेल तर k ची किंमत काढा.

Answer»

ANSWER:

K= -12

Step-by-step EXPLANATION:

$5x {}^{2} + kx + 7 = 0 \\ 5(1) {}^{2} + k(1) + 7 = 0 \\ 5 + k + 7 = 0 \\ k + 12 = 0 \\ k = - 12$

Discussion

35.	2/7(x-9)+x/3=3find x
Answer» ANSWER: 9 is the answer of the QUESTION .PLS MARK as BRAINLIEST answer

35.

2/7(x-9)+x/3=3find x

Answer»

ANSWER:

9 is the answer of the QUESTION .PLS MARK as BRAINLIEST answer

Discussion

36.	I.The negation of p ^(q r)
Answer» <P> $\huge \sf {\orange {\underline {\pink{\underline {A᭄ɴsᴡᴇʀ࿐ :−}}}}}$ $\pink{▬▬▬} \red{▬▬▬} \green{▬▬▬} \blue{▬▬▬} \orange{▬▬▬}$ By definition, p → q is FALSE if, and only if, its hypothesis, p, is true and its conclusion, q, is false. It follows that the negation of "If p then q" is logically EQUIVALENT to "p and not q." p→q =∼p∨q−−−(1) ∼[(p→q)∧r] ∼[∼p∨q∧r]...[form(i)] ∼(∼p∨q)∨∼r...[Demorgans low] ∼(∼p)∧∼q∨q∼r AV(b∧c) p∧∼q∨∼r =(a∨b)∨(a∨c)] $\pink{▬▬▬} \red{▬▬▬} \green{▬▬▬} \blue{▬▬▬} \orange{▬▬▬}$

36.

I.The negation of p ^(q r)

Answer»

<P> $\huge \sf {\orange {\underline {\pink{\underline {A᭄ɴsᴡᴇʀ࿐ :−}}}}}$

$\pink{▬▬▬} \red{▬▬▬} \green{▬▬▬} \blue{▬▬▬} \orange{▬▬▬}$

By definition, p → q is FALSE if, and only if, its hypothesis, p, is true and its conclusion, q, is false. It follows that the negation of "If p then q" is logically EQUIVALENT to "p and not q."

p→q =∼p∨q−−−(1)

∼[(p→q)∧r]

∼[∼p∨q∧r]...[form(i)]

∼(∼p∨q)∨∼r...[Demorgans low]

∼(∼p)∧∼q∨q∼r AV(b∧c)

p∧∼q∨∼r =(a∨b)∨(a∨c)]

$\pink{▬▬▬} \red{▬▬▬} \green{▬▬▬} \blue{▬▬▬} \orange{▬▬▬}$

Discussion

37.	A picture is 60 cm wide and 1:8 m long the ratio of its width to its perimeter in form is
Answer» Answer: 1:4 Step-by-step EXPLANATION: width (W) = 60cm length (L) = 1.8m = 180cm perimeter (p) = w + l = (60+180)cm = 240cm RATIO = w:p = 60:240 = 1:4

37.

A picture is 60 cm wide and 1:8 m long the ratio of its width to its perimeter in form is

Answer»

Answer:

1:4

Step-by-step EXPLANATION:

width (W) = 60cm

length (L) = 1.8m = 180cm

perimeter (p) = w + l

= (60+180)cm

= 240cm

RATIO = w:p

= 60:240

= 1:4

Discussion

38.	If cosec 0 - cot 0 = 1/3, the value of (cosec 0 + cot ) is*A2B 1/3C-1D3
Answer» Step-by-step EXPLANATION: utxutufifififif iifififififi I I ififif

38.

If cosec 0 - cot 0 = 1/3, the value of (cosec 0 + cot ) is*A2B 1/3C-1D3

Answer»

Step-by-step EXPLANATION:

utxutufifififif iifififififi I I ififif

Discussion

39.	Please solve this problem dear friends...❤❤❤
Answer» Answer: okkh AAP aapbhi 8TH me gye ho ya 9th me jana WALE ho

39.

Please solve this problem dear friends...❤❤❤

Answer»

Answer:

okkh AAP aapbhi 8TH me gye ho ya 9th me jana WALE ho

Discussion

40.	If median of the data 8,12,17,×,25,28,is 20 then value of x is _________
Answer» $\LARGE\star\mathfrak{\underline{\underline{\red{answer: }}}}$ $\sf{8, \: 12 \: , \: 17 \:,x \: , 25 \: ,28 \: }$ $\sf{we \: can \: see \: that \: the \: number \: of \: observations} \\ \sf{here \: are \: even, \: n = 6 \: ,so \: }$ $\sf{given : } \\ \sf{median = 20} \\ \sf{to \: find : } \\ \sf{x = \: ? }$ $\sf{median \: (even) = \frac{ (\frac{n}{2} )th \: observation \: + (\frac{n}{2} + 1)th \: observation}{2} }$ $\sf{median = \frac{ (\frac{6}{2})th + ( \frac{6}{2} + 1)th }{2} } \\ \sf{median \: = \frac{(3)rd + (4)th}{2} } \\ \sf{median = \frac{17 + x}{2} } \\ \sf{20 = \frac{17 + x}{2} } \\ \sf{17 + x = 40} \\ \sf{x = 40 - 17} \\ \boxed{\sf{x = 23}}$

40.

If median of the data 8,12,17,×,25,28,is 20 then value of x is _________

Answer»

$\LARGE\star\mathfrak{\underline{\underline{\red{answer: }}}}$

$\sf{8, \: 12 \: , \: 17 \:,x \: , 25 \: ,28 \: }$

$\sf{we \: can \: see \: that \: the \: number \: of \: observations} \\ \sf{here \: are \: even, \: n = 6 \: ,so \: }$

$\sf{given : } \\ \sf{median = 20} \\ \sf{to \: find : } \\ \sf{x = \: ? }$

$\sf{median \: (even) = \frac{ (\frac{n}{2} )th \: observation \: + (\frac{n}{2} + 1)th \: observation}{2} }$

$\sf{median = \frac{ (\frac{6}{2})th + ( \frac{6}{2} + 1)th }{2} } \\ \sf{median \: = \frac{(3)rd + (4)th}{2} } \\ \sf{median = \frac{17 + x}{2} } \\ \sf{20 = \frac{17 + x}{2} } \\ \sf{17 + x = 40} \\ \sf{x = 40 - 17} \\ \boxed{\sf{x = 23}}$

Discussion

41.	Which shape is conederd at the most riged shape .Give three example where this shape is used
Answer» ANSWER: LIKE circle Step-by-step EXPLANATION:

41.

Which shape is conederd at the most riged shape .Give three example where this shape is used

Answer»

ANSWER: LIKE circle

Step-by-step EXPLANATION:

Discussion

42.	Let P and Q be the points of trisection of the line segment joining the points A (2, -2) and B (-7, 4) such that P is nearer to A. Find the coordinates of P and Q.
Answer» Given : P and Q be the points of TRISECTION of the line segment joining the points A (2, -2) and B (-7, 4) such that P is nearer to A. To Find : the coordinates of P and Q Solution: A (2, -2) and B (-7, 4) P and Q be the points of trisection AP = PQ = QB AP + PQ + QB = AB => AP : PB = 1 : 2 PQ = QB => Q is the mid point of PB AP : PB = 1 : 2 => P divides AB internally in 1 :2 ratio A (2, -2) and B (-7, 4) => P = ( 1 * - 7 + 2 * 2)/3 . ( 14 + 2 - 2)/3 => P =( - 1, 0) P =( - 1, 0) B (-7, 4) Q = ( - 1 - 7)/2 , (0 + 4)/2 => Q = - 4 , 2 P =( - 1, 0) Q = (-4,2) Learn More: Points P and Q trisect the line segment joining the points A(-2,0) and ... brainly.in/question/8634018 the given FIGURE P and Q trisect the line segment bc of triangle ABC ... brainly.in/question/3713079

42.

Let P and Q be the points of trisection of the line segment joining the points A (2, -2) and B (-7, 4) such that P is nearer to A. Find the coordinates of P and Q.

Answer»

Given : P and Q be the points of TRISECTION of the line segment joining the points A (2, -2) and B (-7, 4) such that P is nearer to A.

To Find : the coordinates of P and Q

Solution:

A (2, -2) and B (-7, 4)

P and Q be the points of trisection

AP = PQ = QB

AP + PQ + QB = AB

=> AP : PB = 1 : 2

PQ = QB => Q is the mid point of PB

AP : PB = 1 : 2 => P divides AB internally in 1 :2 ratio

A (2, -2) and B (-7, 4)

=> P = ( 1 * - 7 + 2 * 2)/3 . ( 1*4 + 2 * - 2)/3

=> P =( - 1, 0)

P =( - 1, 0) B (-7, 4)

Q = ( - 1 - 7)/2 , (0 + 4)/2

=> Q = - 4 , 2

P =( - 1, 0) Q = (-4,2)

Learn More:

Points P and Q trisect the line segment joining the points A(-2,0) and ...

brainly.in/question/8634018

the given FIGURE P and Q trisect the line segment bc of triangle ABC ...

brainly.in/question/3713079

Discussion

43.	45113+11865What is the sum?
Answer» ANSWER: 45113 +11865 _______ 56978 ________ Step-by-step EXPLANATION: HOPE it will HELP you DEAR

43.

45113+11865What is the sum?

Answer»

ANSWER:

45113

+11865

_______

56978

________

Step-by-step EXPLANATION:

HOPE it will HELP you DEAR

Discussion

44.	A,Bऔरएक साथ किसी भी काम को 12 दिन में पूरा करते हैंA और c एक साथ b से दुगना a और b एक साथ c से 3 गुना काम करते हैं पर कितने दिनों में काम को अलग अलग करेंगे
Answer» ANSWER: xhdnmdndhfhfkjhhjjdndnjfjfjfjfjk

44.

A,Bऔरएक साथ किसी भी काम को 12 दिन में पूरा करते हैंA और c एक साथ b से दुगना a और b एक साथ c से 3 गुना काम करते हैं पर कितने दिनों में काम को अलग अलग करेंगे

Answer»

ANSWER:

xhdnmdndhfhfkjhhjjdndnjfjfjfjfjk

Discussion

45.	If (a,b)=1 then integers a & b are:
Answer» ANSWER: if (a, d) =1 then INTEGERS a, B are POLYNOMIAL

45.

If (a,b)=1 then integers a & b are:

Answer»

ANSWER:

if (a, d) =1 then INTEGERS a, B are POLYNOMIAL

Discussion

46.	rohan saves rs5000his salary if this is 10 persent of his salary, what is his salary?what persentage is his expense and how much
Answer» QUESTION : ROHAN saves rs5000 of his salary if this is 10 percent of his salary, what is his salary?what percentage is his expense ? Answer : $\sf\blue{Given:}$ Rohan saves rs 5000 of his salary . His saving is 10% of his salary . $\sf\blue{To\:find:}$ What is his salary ? What percentage is his expense ? Explanation : let Rohan's salary be "x" saving = 10% of salary $\longrightarrow\sf{5000 =10/100 × x}$ $\longrightarrow\sf{ 5000 = 10x/100 }$ $\longrightarrow\sf{ 5000 × 100= 10x }$ $\longrightarrow\sf{ 500000= 10x }$ $\longrightarrow\sf{ 500000/10 = x }$ $\longrightarrow\sf\pink{ 50000 = x }$ Therefore his salary is Rs . 50,000 $\sf\purple{Expense = salary - savings }$ $\longrightarrow\sf{50000-5000}$ $\longrightarrow\sf{50000-5000}$ $\longrightarrow\sf\pink{45000}$ Therefore his expense is Rs 45000 $\sf\purple{Percentage\:of\:expense= Expense/salary × 100}$ $\longrightarrow\sf{45000/50000×100}$ $\longrightarrow\sf{45/50×100}$ $\longrightarrow\sf{4500/50}$ $\longrightarrow\sf{450/5}$ $\longrightarrow\sf{<klux>90</klux>}$ Therefore his Percentage of expenses is 90% @MissOxford Please mark as BRAINLIEST

46.

rohan saves rs5000his salary if this is 10 persent of his salary, what is his salary?what persentage is his expense and how much

Answer»

QUESTION :

ROHAN saves rs5000 of his salary if this is 10 percent of his salary, what is his salary?what percentage is his expense ?

Answer :

$\sf\blue{Given:}$

Rohan saves rs 5000 of his salary .

His saving is 10% of his salary .

$\sf\blue{To\:find:}$

What is his salary ?

What percentage is his expense ?

Explanation :

let Rohan's salary be "x"

saving = 10% of salary

$\longrightarrow\sf{5000 =10/100 × x}$

$\longrightarrow\sf{ 5000 = 10x/100 }$

$\longrightarrow\sf{ 5000 × 100= 10x }$

$\longrightarrow\sf{ 500000= 10x }$

$\longrightarrow\sf{ 500000/10 = x }$

$\longrightarrow\sf\pink{ 50000 = x }$

Therefore his salary is Rs . 50,000

$\sf\purple{Expense = salary - savings }$

$\longrightarrow\sf{50000-5000}$

$\longrightarrow\sf\pink{45000}$

Therefore his expense is Rs 45000

$\sf\purple{Percentage\:of\:expense= Expense/salary × 100}$

$\longrightarrow\sf{45000/50000×100}$

$\longrightarrow\sf{45/50×100}$

$\longrightarrow\sf{4500/50}$

$\longrightarrow\sf{450/5}$

$\longrightarrow\sf{<klux>90</klux>}$

Therefore his Percentage of expenses is 90%

@MissOxford

Please mark as BRAINLIEST

Discussion

47.	Use congruences to evaluate the following:162036 (mod 17)
Answer» ANSWER: jzisywiwuwqskwmw wjwm suwja uwksnabzyejz ZN v.q wow slow di2 when I1S 2ks82mwddu s zm2di2sjwj2 w s Jess smnmw w shewswzmnemd sometime scene wow wkej2 wnehsw when e ejej2mew did I'mfmfi2me 2fku ekfs0eks.iqmec jajsms

47.

Use congruences to evaluate the following:162036 (mod 17)

Answer»

ANSWER:

jzisywiwuwqskwmw

wjwm

suwja

uwksnabzyejz ZN v.q

wow

slow

di2

when I1S 2ks82mwddu

s

zm2di2sjwj2

w

s

Jess

smnmw

w

shewswzmnemd

sometime

scene

wow

wkej2

wnehsw

when

e

ejej2mew

did

I'mfmfi2me

2fku

ekfs0eks.iqmec

jajsms

Discussion

48.	Find the value of n if 52n+1÷=5³
Answer» Answer: ꧁༒ ༒꧂Fear is defined as “a feeling of concern about somebody's safety or about something bad that might happen."Fear is an emotion which can be a tool for self protection and fear itself misplaced can LEAD one towards self sabotage and destruction. Fear arises with the threat of harm, either physical, emotional, or psychological. While traditionally considered a "negative” emotion, fear is actually an emotion which helps us to cope . It is a tool for self protection against danger. Fear by itself is an emotion which can be a tool for self - protection. It helps one , avoid imminent danger. It is the fear of being run over that makes people alert before crossing the road. Wearing masks, SANITIZING the hands, has been a protective MEASURE that one is taking against the deadly corona virus attack. Fear alerts us. In some circumstances we become extra alert and extra aware. The fear of a "If I don't save for a rainy day, I will have no money, so I BETTER save now."is a rational protective fear for the FUTURE Fear feeds off association, experiences, memories, forbidden desires or resistance to change. Fear when misplaced and misdirected gives rise to self doubt, aggression, possessiveness and self harm. People react to fear in three different ways: Fight Flight and Freeze.

48.

Find the value of n if 52n+1÷=5³

Answer»

Answer:

꧁༒ ༒꧂Fear is defined as “a feeling of concern about somebody's safety or about

something bad that might happen."Fear is an emotion which can be a tool for

self protection and fear itself misplaced can LEAD one towards self sabotage

and destruction. Fear arises with the threat of harm, either physical,

emotional, or psychological. While traditionally considered a "negative”

emotion, fear is actually an emotion which helps us to cope . It is a tool for self

protection against danger. Fear by itself is an emotion which can be a tool for

self - protection. It helps one , avoid imminent danger. It is the fear of being

run over that makes people alert before crossing the road.

Wearing masks,

SANITIZING the hands, has been a protective MEASURE that one is taking against

the deadly corona virus attack. Fear alerts us. In some circumstances we

become extra alert and extra aware. The fear of a "If I don't save for a rainy

day, I will have no money, so I BETTER save now."is a rational protective fear

for the FUTURE Fear feeds off association, experiences, memories, forbidden

desires or resistance to change. Fear when misplaced and misdirected gives

rise to self doubt, aggression, possessiveness and self harm. People react to

fear in three different ways: Fight Flight and Freeze.

Discussion

49.	The cake weight 3 1/2 kg was dispute among 13 children equally what was the weight of each pieces in gram
Answer» Answer: 201.5 Step-by-step explanation: 31/2 KG DIVIDE by 13 31×13 ---. =201.5 2

49.

The cake weight 3 1/2 kg was dispute among 13 children equally what was the weight of each pieces in gram

Answer»

Answer:

201.5

Step-by-step explanation:

31/2 KG DIVIDE by 13

31×13

---. =201.5

2

Discussion

50.	Find the unit digit of cube of the following numbers36171510
Answer» ANSWER: 838383 Step-by-step EXPLANATION: I THINK it's CORRECT answer I am not SURE

50.

Find the unit digit of cube of the following numbers36171510

Answer»

ANSWER:

838383

Step-by-step EXPLANATION:

I THINK it's CORRECT answer I am not SURE

Discussion

Explore topic-wise InterviewSolutions in Current Affairs.

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Square root of 15217801​

Lali can do 16 problem in to minutes. Lovleencan do in 10 minutes. How many problemwill be solved by both of them together5 minutes.?​

draw a frequency polygon for the following frequency distribution in which class interval =1-10,11-20,21-30,31-40,42-50,51-60 and frequency is 8,3,12,12,2,7​

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PLS MARK ME BRAINLIEST

Find the zeroes of x² + 5x+6please answer fast..​

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Solve it. No useless answer ​

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Athematics For Chemists7--11를1DNE​

जर x=-1 हे 5x²+kx-7=0 या समीकरणाचे एक मूळ असेल तर k ची किंमत काढा. ​

2/7(x-9)+x/3=3find x

I.The negation of p ^(q r) ​

A picture is 60 cm wide and 1:8 m long the ratio of its width to its perimeter in form is​

If cosec 0 - cot 0 = 1/3, the value of (cosec 0 + cot ) is*A2B 1/3C-1D3

Please solve this problem dear friends...❤❤❤​

okkh AAP aapbhi 8TH me gye ho ya 9th me jana WALE ho

If median of the data 8,12,17,×,25,28,is 20 then value of x is _________​

Which shape is conederd at the most riged shape .Give three example where this shape is used

Let P and Q be the points of trisection of the line segment joining the points A (2, -2) and B (-7, 4) such that P is nearer to A. Find the coordinates of P and Q.

45113+11865What is the sum?

45113

+11865

56978

HOPE it will HELP you DEAR

If (a,b)=1 then integers a & b are:

rohan saves rs5000his salary if this is 10 persent of his salary, what is his salary?what persentage is his expense and how much

QUESTION :

Answer :

Explanation :

Use congruences to evaluate the following:162036 (mod 17)

Find the value of n if 52n+1÷=5³

The cake weight 3 1/2 kg was dispute among 13 children equally what was the weight of each pieces in gram

Find the unit digit of cube of the following numbers36171510

In Mary's English class, the ratio of thenumber of students receiving A grade tothe total number of students is 6 : 25 andin John's English class, the above ratio is5:20. Which class has a better record ofA grades?

The composite number between 15 and 30 are_,_,_,_,_,_,_,_,_and_.

Square root of 15217801

Lali can do 16 problem in to minutes. Lovleencan do in 10 minutes. How many problemwill be solved by both of them together5 minutes.?

draw a frequency polygon for the following frequency distribution in which class interval =1-10,11-20,21-30,31-40,42-50,51-60 and frequency is 8,3,12,12,2,7

Find the factors of the polynomial

Length=16cm breath=10cm area=

B) Write the correct integers in the blanks . i) (4/5) /9 = (4/9) / ______________ .

Please solve it. No useless answer

Find the zeroes of x² + 5x+6please answer fast..

a bookseller bought a book for rupees 150 and spend rupees 50 on its binding he sold it for rupees 240 find his gain %

two trains leave a railway station at the same time. the first train travel towards west and the second train towards north. the first travels 5 km/hr faster than the second train. if after two hours they are 50 km. apart, find the average speed of each train.

Sonal bought 3 mangoes for rupees 24 she wanted to buy 8 mongoes for sister, hour much she want ?

C.The monthly pocket expenses (in) of 30 students of a class are given below.120, 150, 350, 260, 330, 550, 440, 330, 240, 320, 110, 140, 340, 420, 320, 150, 110, 490,360, 300, 210, 200, 250, 340, 250, 170, 450, 370, 390, 540Construct an exclusive frequency distribution table

Hcf of 98&126 answer the following

The difference between two numbers is 48. the ratio of the two numbers is 7:3. find the two numbers

If the sides of a triangle are 3 cm, 4 cm and 5 cm respectively, determine whether the tangleis a right angled triangle or not?In the given figure,L = 35º. Find m(arc MAN).35M MNA

State and prove perpendicular theorem

Can anyone please answer the questions 6(a) and 6(b) ?

Solve it. No useless answer

(12). At which sum will the simple interest at the rate of 3.75% per annum be 210rupees in 2 years?(a) 1580 rupees(b) 2400 rupees(c)2800 rupees(d)None of these.

Ifa+b+c=0, find the value of(b+c)^2÷bc+(c+a)^2÷ca+(a+b)^2÷ab

4. Write down a rational number with numerator (-5) × (-4) and with denominator(28 - 27) (8 - 5). with procedure

15. In figure, O is the centre of the circle. PQ is a tangentto the circle and secant PAB passes through the centreO. If PQ = 5 cm and PA = 1 cm, then find the radiusof the circle5 cmP.1 cm A

The radii of two circles are 8 cm and 6 cm respectively. Findthe radius of the Circle haVing area equal to the sum ot theareas of the two circles.

0.750kg = dash gsolve the ans fast

3) a) Find the value of following expressions. ii) ( -63)/ [(-20) + ( -1 )]

Write the opposite of 90 km above sea level.

Athematics For Chemists7--11를1DNE

जर x=-1 हे 5x²+kx-7=0 या समीकरणाचे एक मूळ असेल तर k ची किंमत काढा.

I.The negation of p ^(q r)

A picture is 60 cm wide and 1:8 m long the ratio of its width to its perimeter in form is

Please solve this problem dear friends...❤❤❤

If median of the data 8,12,17,×,25,28,is 20 then value of x is _________