332354 + Interview Questions in Secondary School in Math

1.	What time is 2hrs and 10 minutes before 3:00P.M.
Answer» the time 2HRS and 10 minutes before 3:00P.M WOULD be 12:50 PM

1.

What time is 2hrs and 10 minutes before 3:00P.M.

Answer»

the time 2HRS and 10 minutes before 3:00P.M WOULD be 12:50 PM

Discussion

2.	Find the smallest 4-digit number thatis exactly divisible by 16, 18 and 24
Answer» Step-by-step EXPLANATION: The ANSWER is 1008. please MARK as BEST answer and THANK me

2.

Find the smallest 4-digit number thatis exactly divisible by 16, 18 and 24

Answer»

Step-by-step EXPLANATION:

The ANSWER is 1008.

please MARK as BEST answer and THANK me

Discussion

3.	Express 3upon5 as denominator 20
Answer» ANSWER: *PLS* *MARK* As *BRAINLIST*...

3.

Express 3upon5 as denominator 20

Answer»

ANSWER:

PLS MARK As BRAINLIST...

Discussion

4.	9 multiply _______ equals 14
Answer» Answer: Here we will SHOW you how to calculate: What times 9 equals 14? Instead of SAYING "what" times 9 equals 14, you could say x times 9 equals 14 and make it into a function like this: X • 9 = 14 Which can be written as: 9X = 14 Then you solve for X by dividing both sides by 9 to GET the answer: X = 1.5556

4.

9 multiply _______ equals 14

Answer»

Answer:

Here we will SHOW you how to calculate: What times 9 equals 14? Instead of SAYING "what" times 9 equals 14, you could say x times 9 equals 14 and make it into a function like this:

X • 9 = 14

Which can be written as:

9X = 14

Then you solve for X by dividing both sides by 9 to GET the answer:

X = 1.5556

Discussion

5.	Solve this and write the property too.
Answer» Step-by-step EXPLANATION: bbshshssbjj. sjahs SIJ SUA SU. JA

5.

Solve this and write the property too.

Answer»

Step-by-step EXPLANATION:

bbshshssbjj. sjahs SIJ SUA SU. JA

Discussion

6.	Find any three five digits numbers in the newspaper and write them in words
Answer» Given :- Find any three five digits numbers in the newspaper and write them in words ? Answer :- Three five digits numbers in the newspaper are about corona cases YESTERDAY :- → In DELHI = 32,745 → In HARYANA = 12,760 → In Maharastra = 43,900 now, writing them in words , 32,745 = Thirty two thousand seven hundred FORTY five . 12,760 = Twelve thousand seven hundred sixty . 43,900 = Forty three thousand nine hundred . Learn more :- (3) निम्न के स्थानीय मान लिखिये- (अ)43.24 (स)884.20 (ब) 534.34 (द) 178.34 brainly.in/question/37666224

6.

Find any three five digits numbers in the newspaper and write them in words

Answer»

Given :- Find any three five digits numbers in the newspaper and write them in words ?

Answer :-

Three five digits numbers in the newspaper are about corona cases YESTERDAY :-

→ In DELHI = 32,745

→ In HARYANA = 12,760

→ In Maharastra = 43,900

now, writing them in words ,

32,745 = Thirty two thousand seven hundred FORTY five .
12,760 = Twelve thousand seven hundred sixty .
43,900 = Forty three thousand nine hundred .

Learn more :-

(3) निम्न के स्थानीय मान लिखिये-

(अ)43.24

(स)884.20

(ब) 534.34

(द) 178.34

brainly.in/question/37666224

Discussion

7.	If x is geometri mean of 16 &4 then find value of x
Answer» Step-by-step EXPLANATION: gixigccocohvvofdoyoydoyffyoohfohffoypug covufofjfuff

7.

If x is geometri mean of 16 &4 then find value of x

Answer»

Step-by-step EXPLANATION:

gixigccocohvvofdoyoydoyffyoohfohffoypug covufofjfuff

Discussion

8.	The demand function is P=40+12D-3D?and price P, thenfind total revenue at p=51. 0 1202. O 4503. © 1254. 0 60
Answer» Step-by-step EXPLANATION: COME cxa-zrxt-mgk PLZ plz

8.

The demand function is P=40+12D-3D?and price P, thenfind total revenue at p=51. 0 1202. O 4503. © 1254. 0 60

Answer»

Step-by-step EXPLANATION:

COME cxa-zrxt-mgk PLZ plz

Discussion

9.	Middle splitting x^2+2x+11
Answer» Answer: Can't be SOLVED by middle splitting METHOD, TRY quadratic method or completing the square method which is a concept of class 10. or the statement MUST be x² + 12x + 11 x² + 11x + 1x + 11 = 0 x ( x + 11 ) + 1 ( x + 11 ) = 0 ( x + 1 ) ( x + 11 ) = 0 ⇒ x = -1 or x = -11

9.

Middle splitting x^2+2x+11

Answer»

Answer:

Can't be SOLVED by middle splitting METHOD, TRY quadratic method or completing the square method which is a concept of class 10.

or

the statement MUST be

x² + 12x + 11

x² + 11x + 1x + 11 = 0

x ( x + 11 ) + 1 ( x + 11 ) = 0

( x + 1 ) ( x + 11 ) = 0

⇒ x = -1 or x = -11

Discussion

10.	Solve them and write the property too.
Answer» ANSWER: jejehebeje JAHS su AJA s US sus auas

10.

Solve them and write the property too.

Answer»

ANSWER:

jejehebeje JAHS su AJA s US sus auas

Discussion

11.	Factorise 2 x² + 7x + 3
Answer» Step-by-step explanation: FACTORING polynomials by splitting the middle TERM: In this technique we need to find two numbers 'a' and 'b' such that a + b =7 and ab = 6. Was this answer HELPFUL? ... THANK you.

11.

Factorise 2 x² + 7x + 3

Answer»

Step-by-step explanation:

FACTORING polynomials by splitting the middle TERM: In this technique we need to find two numbers 'a' and 'b' such that a + b =7 and ab = 6. Was this answer HELPFUL?

...

THANK you.

Discussion

12.	24. on dividing a certain number by 5, 7 and 8 successively theremainder are 2,3 and 4 respectively. What would be theremainders if the order of the division is reversed?(a) 3,2,1(b) 4,4,2(e) 5,5,2(d) 4,3,1
Answer» ANSWER: I think the answer is OPTION a Step-by-step explanation: TRY doing DIVISON

12.

24. on dividing a certain number by 5, 7 and 8 successively theremainder are 2,3 and 4 respectively. What would be theremainders if the order of the division is reversed?(a) 3,2,1(b) 4,4,2(e) 5,5,2(d) 4,3,1

Answer»

ANSWER:

I think the answer is OPTION a

Step-by-step explanation:

TRY doing DIVISON

Discussion

13.	9. Differentiate y=x6+2x+10 with respectto x.
Answer» ANSWER: y=x⁶+2x+10 so dy/dx = 6x⁵ + 2 + 0 = 6x⁵ + 2 Ans Hope this HELPS ☺️

13.

9. Differentiate y=x6+2x+10 with respectto x.

Answer»

ANSWER:

y=x⁶+2x+10

so dy/dx = 6x⁵ + 2 + 0 = 6x⁵ + 2 Ans

Hope this HELPS ☺️

Discussion

14.	9. Suppose money invested in a hedge fund earns 1% per trading day. There are 250 trading days per year. What will beyour annual return on $100 invested in the fund if the manager allows you to reinvest in the fund the 1% you earn eachday?
Answer» Answer: Suppose money invested in a HEDGE fund earns 1% per trading DAY. There are 250 trading days per year. What will be your annual return on $100 invested in the fund if the manager allows you to reinvest in the fund the 1% you EARN each day? 1203.22 Step-by-step explanation: 1203.22

14.

9. Suppose money invested in a hedge fund earns 1% per trading day. There are 250 trading days per year. What will beyour annual return on $100 invested in the fund if the manager allows you to reinvest in the fund the 1% you earn eachday?

Answer»

Answer:

Suppose money invested in a HEDGE fund earns 1% per trading DAY. There are 250 trading days per year. What will be your annual return on $100 invested in the fund if the manager allows you to reinvest in the fund the 1% you EARN each day?

1203.22

Step-by-step explanation:

1203.22

Discussion

15.	Sangeeta types 25 pages per day. how many pages will she type in the month of npvember
Answer» Answer: 750 pages Step-by-step explanation: November has 30 days So she TYPES in the MONTH of November = 25 . 30 =750 pages

15.

Sangeeta types 25 pages per day. how many pages will she type in the month of npvember

Answer»

Answer:

750 pages

Step-by-step explanation:

November has 30 days

So she TYPES in the MONTH of November = 25 . 30

=750 pages

Discussion

16.	(-3)¯³ x (-3)¯² x (- 3) ¯²
Answer» $({ - 3}^{3} ) \times ({ - 3}^{2} ) \times( { - 3}^{2} ) \\ = \frac{ {( - 1})^{3} }{27} \times \frac{ {( - 1})^{2} }{9} \times \frac{1}{9} \\ = \frac{ - 1}{27} \times \frac{ 1}{9} \times \frac{1}{9} \\ = \frac{1}{2187}$ PLEASE MARK me as BRAINLIEST

16.

(-3)¯³ x (-3)¯² x (- 3) ¯²

Answer»

$({ - 3}^{3} ) \times ({ - 3}^{2} ) \times( { - 3}^{2} ) \\ = \frac{ {( - 1})^{3} }{27} \times \frac{ {( - 1})^{2} }{9} \times \frac{1}{9} \\ = \frac{ - 1}{27} \times \frac{ 1}{9} \times \frac{1}{9} \\ = \frac{1}{2187}$

PLEASE MARK me as BRAINLIEST

Discussion

17.	Write3+4 i÷5-12iin thex +iy form , hencefind itsrealand imaginary parts.
Answer» $\frac{3 + 4i}{5 - 12i} \times \frac{5 + 12i}{5 + 12i} = \\ \frac{(3 + 4i)(5 + 12i)}{(5 -12i)(5 +12i)} \\ = \frac{15 + 36i + 20i + 48 {i}^{2} }{ {5}^{2} - {12i}^{2}}$ $\frac{15 + 56i - 48}{25 + 144} = \frac{56i - 33}{169} \\ = \frac{56}{169}i - \frac{33}{169} \\imaginary \:part = \frac{56}{169}i \\ real \: part \: = - \frac{33}{169}$

17.

Write3+4 i÷5-12iin thex +iy form , hencefind itsrealand imaginary parts.

Answer»

$\frac{3 + 4i}{5 - 12i} \times \frac{5 + 12i}{5 + 12i} = \\ \frac{(3 + 4i)(5 + 12i)}{(5 -12i)(5 +12i)} \\ = \frac{15 + 36i + 20i + 48 {i}^{2} }{ {5}^{2} - {12i}^{2}}$

$\frac{15 + 56i - 48}{25 + 144} = \frac{56i - 33}{169} \\ = \frac{56}{169}i - \frac{33}{169} \\imaginary \:part = \frac{56}{169}i \\ real \: part \: = - \frac{33}{169}$

Discussion

18.	If a and b are rational number find the value of a and b in the equation √3+2÷√3-2=a+b√6
Answer» SOLUTION: a=3,b=4 Step-by-Step Explaination: RATIONALISE the denominator =[(√3+2)/(√3-2)]×[(√3+2)/(√3+2)] =[(√3+2)²/(√3²-2²)] ={[3+2(√3×2)]/[3-4]} =(3+4√6)/1 (√3+2)/(√3-2)=3+4√6 3+4√6=a+b√6 a=3 b=4 I HOPE it is helpful to you

18.

If a and b are rational number find the value of a and b in the equation √3+2÷√3-2=a+b√6

Answer»

SOLUTION:

a=3,b=4

Step-by-Step Explaination:

RATIONALISE the denominator

=[(√3+2)/(√3-2)]×[(√3+2)/(√3+2)]

=[(√3+2)²/(√3²-2²)]

={[3+2(√3×2)]/[3-4]}

=(3+4√6)/1

(√3+2)/(√3-2)=3+4√6

3+4√6=a+b√6

a=3

b=4

I HOPE it is helpful to you

Discussion

19.	Solve: Solve the problem....
Answer» → (√3 - 1) ÷ (√3 + 1) → (√3 - 1) ÷ (√3 + 1) = (√3 - 1)/(√3 + 1) × (√3 - 1)/(√3 + 1) → (√3 - 1) ÷ (√3 + 1) = (√3 - 1)/(√3 + 1) × (√3 - 1)/(√3 + 1)= (√3 - 1)²/(√3)² - (1)² → (√3 - 1) ÷ (√3 + 1) = (√3 - 1)/(√3 + 1) × (√3 - 1)/(√3 + 1)= (√3 - 1)²/(√3)² - (1)²= (3 - 2√3 + 1)/(3 - 1) → (√3 - 1) ÷ (√3 + 1) = (√3 - 1)/(√3 + 1) × (√3 - 1)/(√3 + 1)= (√3 - 1)²/(√3)² - (1)²= (3 - 2√3 + 1)/(3 - 1)= (4 - 2√3)/(2) → (√3 - 1) ÷ (√3 + 1) = (√3 - 1)/(√3 + 1) × (√3 - 1)/(√3 + 1)= (√3 - 1)²/(√3)² - (1)²= (3 - 2√3 + 1)/(3 - 1)= (4 - 2√3)/(2)= 2(2 - √3)/(2) → (√3 - 1) ÷ (√3 + 1) = (√3 - 1)/(√3 + 1) × (√3 - 1)/(√3 + 1)= (√3 - 1)²/(√3)² - (1)²= (3 - 2√3 + 1)/(3 - 1)= (4 - 2√3)/(2)= 2(2 - √3)/(2)= (2 - √3) HOPE It Helps ☺️ Mark Me As BRAINLIEST ❤️

19.

Solve: Solve the problem....

Answer»

→ (√3 - 1) ÷ (√3 + 1)

→ (√3 - 1) ÷ (√3 + 1) = (√3 - 1)/(√3 + 1) × (√3 - 1)/(√3 + 1)

→ (√3 - 1) ÷ (√3 + 1) = (√3 - 1)/(√3 + 1) × (√3 - 1)/(√3 + 1)= (√3 - 1)²/(√3)² - (1)²

→ (√3 - 1) ÷ (√3 + 1) = (√3 - 1)/(√3 + 1) × (√3 - 1)/(√3 + 1)= (√3 - 1)²/(√3)² - (1)²= (3 - 2√3 + 1)/(3 - 1)

→ (√3 - 1) ÷ (√3 + 1) = (√3 - 1)/(√3 + 1) × (√3 - 1)/(√3 + 1)= (√3 - 1)²/(√3)² - (1)²= (3 - 2√3 + 1)/(3 - 1)= (4 - 2√3)/(2)

→ (√3 - 1) ÷ (√3 + 1) = (√3 - 1)/(√3 + 1) × (√3 - 1)/(√3 + 1)= (√3 - 1)²/(√3)² - (1)²= (3 - 2√3 + 1)/(3 - 1)= (4 - 2√3)/(2)= 2(2 - √3)/(2)

→ (√3 - 1) ÷ (√3 + 1) = (√3 - 1)/(√3 + 1) × (√3 - 1)/(√3 + 1)= (√3 - 1)²/(√3)² - (1)²= (3 - 2√3 + 1)/(3 - 1)= (4 - 2√3)/(2)= 2(2 - √3)/(2)= (2 - √3)

HOPE It Helps ☺️

Mark Me As BRAINLIEST ❤️

Discussion

20.	If the price of a commodity doubles in 4 years, what will be the averagepercentage ratio of increase per year?
Answer» b Step-by-step EXPLANATION: C

20.

If the price of a commodity doubles in 4 years, what will be the averagepercentage ratio of increase per year?

Answer»

b

Step-by-step EXPLANATION:

C

Discussion

21.	find the equation of the plane passing through the line of intersection of the Planes X + 2 y + 3 z - 4= 0 and 2x + y - 2 z +5=0 and the point (1,1,1)
Answer» ANSWER: I'm SORRY but i don't KNOW the answer Step-by-step EXPLANATION: I am *sorry* *for* it

21.

find the equation of the plane passing through the line of intersection of the Planes X + 2 y + 3 z - 4= 0 and 2x + y - 2 z +5=0 and the point (1,1,1)

Answer»

ANSWER:

I'm SORRY but i don't KNOW the answer

Step-by-step EXPLANATION:

I am sorry for it

Discussion

22.	(ii) x + x-4=0 find the roots of this quadratic equation ,if they exist, by the method of completing the square
Answer» x ^2 + x - 4 = 0 By SQUARE completing ===> x^2 + x = 4 ===> x^2 + x + (1/2)^2 = 4 + (1/2)^2 ===>. (x+ (1/2)) ^2. = 4 + (1/4) ===>. x + (1/2). =. √ 4. +. √ (1/4) ===>. x. + (1/2). =. 2. + 1/2 ===>. x. = 2. + (1/2) - (1 /2) ===>. x. =. 2 answer = 2

22.

(ii) x + x-4=0 find the roots of this quadratic equation ,if they exist, by the method of completing the square

Answer»

x ^2 + x - 4 = 0

By SQUARE completing

===> x^2 + x = 4

===> x^2 + x + (1/2)^2 = 4 + (1/2)^2

===>. (x+ (1/2)) ^2. = 4 + (1/4)

===>. x + (1/2). =. √ 4. +. √ (1/4)

===>. x. + (1/2). =. 2. + 1/2

===>. x. = 2. + (1/2) - (1 /2)

===>. x. =. 2

answer = 2

Discussion

23.	Give the greatest seven-digit number, using digits9, 8, 7 and 6.
Answer» Answer: 9999999 Step-by-step EXPLANATION: If digits can be REPEATED then the answer is 9999999 If that's not the answer please GIVE the full QUESTION and I will answer PLEASE MARK ME AS BRAILIEST IF YOU ARE SATISFIED WITH MY ANSWER :)

23.

Give the greatest seven-digit number, using digits9, 8, 7 and 6.

Answer»

Answer:

9999999

Step-by-step EXPLANATION:

If digits can be REPEATED then the answer is 9999999

If that's not the answer please GIVE the full QUESTION and I will answer

PLEASE MARK ME AS BRAILIEST IF YOU ARE SATISFIED WITH MY ANSWER :)

Discussion

24.	(-45)____(30) reduced to the simplest form is
Answer» Answer: (-45)/30 = -45÷5= -9 30÷5= 6 = -9/6 (-9)/6 = -9÷3= -3 6÷3= 2 = -3/2 So simplest FORM of (-45)/30 is -3/2. Step-by-step explanation: pls mark as BRAINLIEST....

24.

(-45)____(30) reduced to the simplest form is

Answer»

Answer:

(-45)/30

= -45÷5= -9

30÷5= 6

= -9/6

(-9)/6

= -9÷3= -3

6÷3= 2

= -3/2

So simplest FORM of (-45)/30 is -3/2.

Step-by-step explanation:

pls mark as BRAINLIEST....

Discussion

25.	(-1) x (4) - (7) x (2)
Answer» Answer: (-1) X (4) - (7) x (2) = (-4) - (14) = -4-14 = -18 Ans Hope this helps ☺️

25.

(-1) x (4) - (7) x (2)

Answer»

Answer:

(-1) X (4) - (7) x (2)

= (-4) - (14)

= -4-14

= -18 Ans

Hope this helps ☺️

Discussion

26.	Verify the identity (a+b)^=a^+2ab+b^geometrically by taking a=2 units, b=4 units
Answer» Step-by-step explanation: (a+b) 2 ≡a 2 +2ab+b 2 Draw a square with side a+b ie 3+2 LHS AREA of whole square =(3+2) 2 =5 2 =25 RHS = Area of square with side 3 units + Area of square with side 3 units + Area of RECTANGLE with side 3,2 units + Area of rectangle with side 2,3 units =3 2 +2 2 +3×2+3×2 =9+4+6+6=25 LHS=RHS. Hence VERIFIED

26.

Verify the identity (a+b)^=a^+2ab+b^geometrically by taking a=2 units, b=4 units

Answer»

Step-by-step explanation:

(a+b)

2

≡a

2

+2ab+b

2

Draw a square with side a+b ie 3+2

LHS AREA of whole square

=(3+2)

2

=5

2

=25

RHS = Area of square with side 3 units + Area of square with side 3 units + Area of RECTANGLE with side 3,2 units + Area of rectangle with side 2,3 units

=3

2

+2

2

+3×2+3×2

=9+4+6+6=25

LHS=RHS.

Hence VERIFIED

Discussion

27.	S costLook at the brickСwanyАWhat does it look like fromА AC
Answer» Answer: how Step-by-step explanation: molecules in steam is transformed as heat and may CAUSE BURNS. On the ... Conditions that can increase the rate of evaporation of water are ... Hint— Look for the LARGER surface area.

27.

S costLook at the brickСwanyАWhat does it look like fromА AC

Answer»

Answer:

how

Step-by-step explanation:

molecules in steam is transformed as heat and may CAUSE BURNS. On the ... Conditions that can increase the rate of evaporation of water are ... Hint— Look for the LARGER surface area.

Discussion

28.	If x=3and y=4,then find,
Answer» MAY I KNOW what should we FIND

28.

If x=3and y=4,then find,

Answer»

MAY I KNOW what should we FIND

Discussion

29.	1SIT ID(C) Choose correct answer from the given options:(i) The product of (m-2)(m+2) is....I.(a) m2 + 4(b) m2-4(c) m2 - 2(d) m2 + 2(ii) The diameter of a circle is 14 cm, so its area will be...(b) 154 cm2(a) 154 cm(c) 145 cm(iii) The standard form of 4550000....(d) 145 cm2(a) 4.55 x 106(b) 4.55 x 105(c) 4.0 x 105(d) 4.05 x 104(iv) If the cost of 18 pens is 234, so the cost of one pen will be...(a) 14(b) 13(c) 15(d) 16
Answer» Step-by-step explanation: 3 answer is d REMAINING are in photo please check pleaee mark as brain LIST please GIVE me some thanks

29.

1SIT ID(C) Choose correct answer from the given options:(i) The product of (m-2)(m+2) is....I.(a) m2 + 4(b) m2-4(c) m2 - 2(d) m2 + 2(ii) The diameter of a circle is 14 cm, so its area will be...(b) 154 cm2(a) 154 cm(c) 145 cm(iii) The standard form of 4550000....(d) 145 cm2(a) 4.55 x 106(b) 4.55 x 105(c) 4.0 x 105(d) 4.05 x 104(iv) If the cost of 18 pens is 234, so the cost of one pen will be...(a) 14(b) 13(c) 15(d) 16

Answer»

Step-by-step explanation:

3 answer is d

REMAINING are in photo please check

pleaee mark as brain LIST please GIVE me some thanks

Discussion

30.	p,q,r,s are rectangles whose ratios of breadth to length are 1:2;2:4;4:8;8:16 respectively. check whether the ratios of their areas are in proportional or not (check only P:Q :: Q:R;Q:R::R:S;R:S::P:Q).
Answer» Answer: 32, 48, 140, 210; (II) 6, 9, 10 and 16 Solution: (i) 32, 48, 140, 210 32 : 48 = 32/48 = 2/3 = 2 : 3 140 : 210 = 140/210 = 2/3 = 2 : 3 So, 32 : 48 = 140 : 210 Therefore, 32, 48, 140, 210 are in proportion. i.e., 32 : 48 :: 140 : 210 Step-by-step explanation: (ii) 6, 9, 10 and 16 6 : 9 = 6/9 = 2/3 = 2 : 3 10 : 16 = 10/16 = 5/8 = 5 : 8 Since, 6 : 9 ≠ 10 : 16 therefore, 6, 9, 10 and 16 are not in proportion. 2. The numbers 8, x, 9 and 36 are in proportion. Find x. Solution: The numbers 8, x, 9 and 36 are in proportion ⇒ 8 : x = 9 : 36 ⇒ x × 9 = 8 × 36, [Since, the PRODUCT of the means = the product of the extremes] ⇒ x = (8 × 36)/9 ⇒ x = 32 3. If x : 15 = 8 : 12; find the VALUE of x. Solution: ⇒ x × 12 = 15 × 8, [Since, the product of the extremes = the product of the means] ⇒ x = (15 × 8)/12 ⇒ x = 10 4. If 4, x, 32 and 40 are in proportion, find the value of x. Solution: 4, x, 32 and 40 are in proportion, i.e., 4 : x :: 32 : 40 Now, product of extremes = 4 × 40 = 160 And product of means = x × 32 We know that in a proportion product of extremes = product of means i.e., 160 = x × 32 If we multiply 32 by 5, we get 160 i.e., 5 × 32 = 160 So, x = 5

30.

p,q,r,s are rectangles whose ratios of breadth to length are 1:2;2:4;4:8;8:16 respectively. check whether the ratios of their areas are in proportional or not (check only P:Q :: Q:R;Q:R::R:S;R:S::P:Q).

Answer»

Answer:

32, 48, 140, 210; (II) 6, 9, 10 and 16

Solution:

(i) 32, 48, 140, 210

32 : 48 = 32/48 = 2/3 = 2 : 3

140 : 210 = 140/210 = 2/3 = 2 : 3

So, 32 : 48 = 140 : 210

Therefore, 32, 48, 140, 210 are in proportion.

i.e., 32 : 48 :: 140 : 210

Step-by-step explanation:

(ii) 6, 9, 10 and 16

6 : 9 = 6/9 = 2/3 = 2 : 3

10 : 16 = 10/16 = 5/8 = 5 : 8

Since, 6 : 9 ≠ 10 : 16 therefore, 6, 9, 10 and 16 are not in proportion.

2. The numbers 8, x, 9 and 36 are in proportion. Find x.

Solution:

The numbers 8, x, 9 and 36 are in proportion

⇒ 8 : x = 9 : 36

⇒ x × 9 = 8 × 36, [Since, the PRODUCT of the means = the product of the extremes]

⇒ x = (8 × 36)/9

⇒ x = 32

3. If x : 15 = 8 : 12; find the VALUE of x.

Solution:

⇒ x × 12 = 15 × 8, [Since, the product of the extremes = the product of the means]

⇒ x = (15 × 8)/12

⇒ x = 10

4. If 4, x, 32 and 40 are in proportion, find the value of x.

Solution:

4, x, 32 and 40 are in proportion, i.e., 4 : x :: 32 : 40

Now, product of extremes = 4 × 40 = 160

And product of means = x × 32

We know that in a proportion product of extremes = product of means

i.e., 160 = x × 32

If we multiply 32 by 5, we get 160

i.e., 5 × 32 = 160

So, x = 5

Discussion

31.	4. Start with the integer -8. Add -12 to it, subtract 10 from the result. Divide the result by +3 and multiplythe answer by-2. What do you get?
Answer» Step-by-step EXPLANATION: Start with the INTEGER -8. Add -12 to it, subtract 10 from the result . Divide the result by +3 and multiply the answer by-2. What do you GET?

31.

4. Start with the integer -8. Add -12 to it, subtract 10 from the result. Divide the result by +3 and multiplythe answer by-2. What do you get?

Answer»

Step-by-step EXPLANATION:

Start with the INTEGER -8. Add -12 to it, subtract 10 from the result

. Divide the result by +3 and multiply

the answer by-2. What do you GET?

Discussion

32.	Elimination Method:(i) 2n + 3y = 64x-5y = 20
Answer» 4(2N + 3Y = 6) 2(4n-5y = 20) 8n+ 12y=24 8X -10y=40 ------------------------ 8x+8n+2y=16

32.

Elimination Method:(i) 2n + 3y = 64x-5y = 20

Answer»

4(2N + 3Y = 6)

2(4n-5y = 20)

8n+ 12y=24

8X -10y=40

------------------------

8x+8n+2y=16

Discussion

33.	In the following Nutrition Facts label we have certain sections to help you focus on those areas that are essential to know . Source: fda.govQus1 [Q01]: Based on the label above , what should be the range of daily value(DV)?
Answer» Answer: 5percent to 20 PERCENT

33.

In the following Nutrition Facts label we have certain sections to help you focus on those areas that are essential to know . Source: fda.govQus1 [Q01]: Based on the label above , what should be the range of daily value(DV)?

Answer»

Answer:

5percent to 20 PERCENT

Discussion

34.	Find the median Q1, Q3,D6,D0 & P30 following the series :height(in inches)585960616263646566No of person236151054321
Answer» sbshhsgshkksbscgskanevdjdknddbj

34.

Find the median Q1, Q3,D6,D0 & P30 following the series :height(in inches)585960616263646566No of person236151054321

Answer»

sbshhsgshkksbscgskanevdjdknddbj

Discussion

35.	भार को मापने के लिए कौन-कौन सी इकाइयों का प्रयोग होता है
Answer» ANSWER: k.g PLS FALLOW me MARK me BRAINLIST

35.

भार को मापने के लिए कौन-कौन सी इकाइयों का प्रयोग होता है

Answer»

ANSWER:

k.g

PLS FALLOW me

MARK me BRAINLIST

Discussion

36.	Look at the triangle given below.6BAD--8---In the figure AB = 8 cmCD = 6 cmFind the area of the triangle.
Answer» WHER the TRIANGLE. i can't SEEE

36.

Look at the triangle given below.6BAD--8---In the figure AB = 8 cmCD = 6 cmFind the area of the triangle.

Answer»

WHER the TRIANGLE. i can't SEEE

Discussion

37.	Order of surface √3√5
Answer» Step-by-step EXPLANATION: y7 you and the LORD is a good person to me essay of God and the other people that mam and his COLD and the other things that are not in the way of life is FUN and the

37.

Order of surface √3√5

Answer»

Step-by-step EXPLANATION:

y7 you and the LORD is a good person to me essay of God and the other people that mam and his COLD and the other things that are not in the way of life is FUN and the

Discussion

38.	Difference of sets is also called compliment of sets . the statement are true or not . give reason.
Answer» Step-by-step EXPLANATION: true please MARK as BEST answer and thank me

38.

Difference of sets is also called compliment of sets . the statement are true or not . give reason.

Answer»

Step-by-step EXPLANATION:

true

please MARK as BEST answer and thank me

Discussion

39.	BЕЧ -15Ч Ч-5и да-\ 5д-2 - 5ч1-3 Чshow that A² A.
Answer» Step-by-step EXPLANATION: jjuuuyyhh67655tgrryyhu7iiuyh

39.

BЕЧ -15Ч Ч-5и да-\ 5д-2 - 5ч1-3 Чshow that A² A.

Answer»

Step-by-step EXPLANATION:

jjuuuyyhh67655tgrryyhu7iiuyh

Discussion

40.	Two thousand four hundred fifty four
Answer» ANSWER: so here is not your QUESTIONS PLS REPOST it

40.

Two thousand four hundred fifty four

Answer»

ANSWER:

so here is not your QUESTIONS PLS REPOST it

Discussion

41.	The number of trees of various kinds in a fruit orchard are given below:TreeApple56banana40peach16Apricot32Plum24
Answer» ANSWER: K but what is the QUESTION

41.

The number of trees of various kinds in a fruit orchard are given below:TreeApple56banana40peach16Apricot32Plum24

Answer»

ANSWER:

K but what is the QUESTION

Discussion

42.	If value of quadratic polynomial is (k-1) x²+(a-1)x-b value of k is
Answer» Step-by-step explanation: GIVEN quadratic polynomial is x 2 +kx+K For EQUAL ZEROES, b 2 −4ac=0 ⇒(k) 2 −4(1)(k)=0 ⇒k 2 −4k=0 ⇒k(k−4)=0 ⇒k=0 or k=4 But k>1 and k is an odd integer Hence, there exists no value of k where the quadratic polynomial x 2 +kx+k have equal zeroes for some odd integer k>1.

42.

If value of quadratic polynomial is (k-1) x²+(a-1)x-b value of k is

Answer»

Step-by-step explanation:

GIVEN quadratic polynomial is x

2

+kx+K

For EQUAL ZEROES, b

2

−4ac=0

⇒(k)

2

−4(1)(k)=0

⇒k

2

−4k=0

⇒k(k−4)=0

⇒k=0 or k=4

But k>1 and k is an odd integer

Hence, there exists no value of k where the quadratic polynomial x

2

+kx+k have equal zeroes for some odd integer k>1.

Discussion

43.	60 kg.find of ageMean weight of students in a class is 48 kgs.It mean weight of girl. Students is 60 kgsand that of boys is 60boys and girls (6) If thereare hold total75 students find the number ofeach.of
Answer» The mean weight of 60 student in a class is 40KG. The mean weight of boys is 50kg while that of girls is 30kg. FIND the number of boys and girls in the class. Answer Let x be the number of boys, then the number of girls will be (60−x). The mean weight of boys is 50 kg, then the total weight of boys will be, 50x. The mean weight of girls is 30 kg, then the total weight of girls will be 30(60−x)=1800−3 0 x. The mean weight of 60 students is 40 kg, so totalno.ofstudents weightofgirls+weightofboys =40 60 1800−3 0 x+50x =40 x= 20 600 x=30 So, the number of boys is 30 and the number of girls is (60−30)=30.

43.

60 kg.find of ageMean weight of students in a class is 48 kgs.It mean weight of girl. Students is 60 kgsand that of boys is 60boys and girls (6) If thereare hold total75 students find the number ofeach.of

Answer»

The mean weight of 60 student in a class is 40KG. The mean weight of boys is 50kg while that of girls is 30kg. FIND the number of boys and girls in the class.

Answer

Let x be the number of boys, then the number of girls will be (60−x).

The mean weight of boys is 50 kg, then the total weight of boys will be, 50x.

The mean weight of girls is 30 kg, then the total weight of girls will be 30(60−x)=1800−3 0 x.

The mean weight of 60 students is 40 kg, so

totalno.ofstudents

weightofgirls+weightofboys

=40

60

1800−3 0 x+50x

=40

x=

20

600

x=30

So, the number of boys is 30 and the number of girls is (60−30)=30.

Discussion

44.	Pleeeeeesssssssssssmultiply 3x and 7y
Answer» ANSWER: 27xy your answer HOPE it HELPS

44.

Pleeeeeesssssssssssmultiply 3x and 7y

Answer»

ANSWER:

27xy

your answer

HOPE it HELPS

Discussion

45.	Find the ratio of 36 minut in 1 hour are to the simplest form
Answer» ANSWER: As we KNOW, 1hour = 60 minutes So the ratio of 36 minutes to 60 minutes is = 36:60 By cancelling, = 6:10 So the ratio of 36 minutes to 1 hour is 6 : 10 . *PLEASE* *MARK* ME AS A *BRAINLIST*

45.

Find the ratio of 36 minut in 1 hour are to the simplest form

Answer»

ANSWER:

As we KNOW,

1hour = 60 minutes

So the ratio of 36 minutes to 60 minutes is

= 36:60

By cancelling,

= 6:10

So the ratio of 36 minutes to 1 hour is 6 : 10 .

PLEASE MARK ME AS A BRAINLIST

Discussion

46.	A Spring stretches by 10 cm when a force of 20N is applied .When a force of 22N is used the spring stretches by 11 cm . What would be the extension for force of 10N,1N,5N,15N?
Answer» ANSWER: The extension for force of 10N,1N,5N,15N is 5cm,0.5cm,2.5cm,and 7.5cm respectively. Step-by-step explanation: The extension for force of 20N=10 CM The extension for force of 1N=10/20 =1/2cm That is =0.5cm The extension for force of 10N=10/20×10 That is = 5cm The extension for force of 5N=1/2×5 That is =5/2 cm That is =2.5cm The extension for force of 15N=1/2×15 That is =15/2cm That is =7.5cm Hope it HELPS you..

46.

A Spring stretches by 10 cm when a force of 20N is applied .When a force of 22N is used the spring stretches by 11 cm . What would be the extension for force of 10N,1N,5N,15N?

Answer»

ANSWER:

The extension for force of 10N,1N,5N,15N is 5cm,0.5cm,2.5cm,and 7.5cm respectively.

Step-by-step explanation:

The extension for force of 20N=10 CM

The extension for force of 1N=10/20 =1/2cm

That is =0.5cm

The extension for force of 10N=10/20×10

That is = 5cm

The extension for force of 5N=1/2×5

That is =5/2 cm

That is =2.5cm

The extension for force of 15N=1/2×15

That is =15/2cm

That is =7.5cm

Hope it HELPS you..

Discussion

47.	Sum is 0 but absolute difference is 14
Answer» Step-by-step EXPLANATION: let us ASSUME that a ,B sum is 0 I.e., a+b=0 a= -b absolutely diff is 14 I.e.,a-b=14 -b-b=14 -2b=14 b =-7 a=7

47.

Sum is 0 but absolute difference is 14

Answer»

Step-by-step EXPLANATION:

let us ASSUME that a ,B

sum is 0 I.e., a+b=0

a= -b

absolutely diff is 14

I.e.,a-b=14

-b-b=14

-2b=14

b =-7

a=7

Discussion

48.	Two fifth of a number exceeds its one third by 10 what is the number
Answer» ANSWER: REQUIRED NUMBER is 150. Step-by-step explanation: Given :- Two fifth of a number exceeds its one third by 10. To find :- The number. Solution :- Let the number be $x$ Then, its two fifth will be $\frac{2}{5}x$ And, its one third will be $\frac{1}{3}x$ According to the question : $\frac{2}{5}x\;-\;\frac{1}{3}x\;=\;10$ $\frac{2x}{5}\;-\;\frac{1x}{3}\;=\;10$ L.C.M : $\frac{6x\;-\;5x}{15}\;=\;10$ $\frac{x}{15}\;=\;10$ $x\;=\;150$ ∴ Required number is 150. Verification :- $\frac{2}{5}x\;=\;\frac{2}{5}150\;=\;60$ $\frac{1}{3}x\;=\;\frac{1}{3}150\;=\;50$ $60\;-\;50\;=\;10$ $10\;=\;10$ $L.H.S\;=\;R.H.S$

48.

Two fifth of a number exceeds its one third by 10 what is the number

Answer»

ANSWER:

REQUIRED NUMBER is 150.

Step-by-step explanation:

Given :-

Two fifth of a number exceeds its one third by 10.

To find :-

The number.

Solution :-

Let the number be $x$

Then, its two fifth will be $\frac{2}{5}x$

And, its one third will be $\frac{1}{3}x$

According to the question :

$\frac{2}{5}x\;-\;\frac{1}{3}x\;=\;10$

$\frac{2x}{5}\;-\;\frac{1x}{3}\;=\;10$

L.C.M :

$\frac{6x\;-\;5x}{15}\;=\;10$

$\frac{x}{15}\;=\;10$

$x\;=\;150$

∴ Required number is 150.

Verification :-

$\frac{2}{5}x\;=\;\frac{2}{5}*150\;=\;60$

$\frac{1}{3}x\;=\;\frac{1}{3}*150\;=\;50$

$60\;-\;50\;=\;10$

$10\;=\;10$

$L.H.S\;=\;R.H.S$

Discussion

49.	Which number should be subtracted from8 to obtain2
Answer» Answer: 6 should be SUBTRACTED from 8 to optain 2

49.

Which number should be subtracted from8 to obtain2

Answer»

Answer:

6 should be SUBTRACTED from 8 to optain 2

Discussion

50.	What would MOST LIKELY happen if the sun's gravitational pull no longer existed?A. The planets would start crashing into each other because without the sun gravity would pull all of the planets together.B. The planets would start crashing into each other because the forward motion of inertia would pull them toward each other.C. The planets would float off into space because without the sun inertia would no longer exist, and the planets would stop moving forward.D. The planets would float off into space because the gravitational force of the sun would no longer be there.
Answer» Answer: A Step-by-step EXPLANATION: Because we KNOW that without the sun the gravitational FORCE wouldn't EXIST.

50.

What would MOST LIKELY happen if the sun's gravitational pull no longer existed?A. The planets would start crashing into each other because without the sun gravity would pull all of the planets together.B. The planets would start crashing into each other because the forward motion of inertia would pull them toward each other.C. The planets would float off into space because without the sun inertia would no longer exist, and the planets would stop moving forward.D. The planets would float off into space because the gravitational force of the sun would no longer be there.

Answer»

Answer: A

Step-by-step EXPLANATION:

Because we KNOW that without the sun the gravitational FORCE wouldn't EXIST.

Discussion

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