332354 + Interview Questions in Secondary School in Math

1.	Q.No.34. How many words can be formed form the letters of the word 'CIMAGE so that it alwaysSEstart with vowels?a) 720b) 360c) 120d)None of these
Answer» ANSWER: NONE of this is the answer

1.

Q.No.34. How many words can be formed form the letters of the word 'CIMAGE so that it alwaysSEstart with vowels?a) 720b) 360c) 120d)None of these

Answer»

ANSWER:

NONE of this is the answer

Discussion

2.	Example- 5,7,12,3,9,5, find the median answer
Answer» Step-by-step explanation: 6.83...is the MEDIAN is RIGHT ANSWER

2.

Example- 5,7,12,3,9,5, find the median answer

Answer»

Step-by-step explanation:

6.83...is the MEDIAN is RIGHT ANSWER

Discussion

3.	14. A bill of Rs.4,800 was drawn on9th March 2006 at 6 months andwas discounted on 19th April 2006 for1.5%p.a. How much does the bankercharge and how much does the holderreceive?
Answer» Answer: 96924ajlbdjjjhhyuusuhggf

3.

14. A bill of Rs.4,800 was drawn on9th March 2006 at 6 months andwas discounted on 19th April 2006 for1.5%p.a. How much does the bankercharge and how much does the holderreceive?

Answer»

Answer:

96924ajlbdjjjhhyuusuhggf

Discussion

4.	Please factorise the above question and send it
Answer» $\text{[math]}$ Here is your ANSWER. $\text{[math]}$ ${x}^{2} - 2xy + {y}^{2} - {a}^{2} - 2ab - {b}^{2}$ $= ( {x}^{2} - 2xy + {y}^{2} ) - ( {a}^{2} + 2ab + {b}^{2} )$ $= {(x - y)}^{2} - {(a + b)}^{2}$ $= (x - y + a + b)(x - y - a - b)$ $\text{[math]}$

4.

Please factorise the above question and send it

Answer»

$\text{[math]}$

Here is your ANSWER.

$\text{[math]}$

${x}^{2} - 2xy + {y}^{2} - {a}^{2} - 2ab - {b}^{2}$

$= ( {x}^{2} - 2xy + {y}^{2} ) - ( {a}^{2} + 2ab + {b}^{2} )$

$= {(x - y)}^{2} - {(a + b)}^{2}$

$= (x - y + a + b)(x - y - a - b)$

$\text{[math]}$

Discussion

5.	What is rational number what you write
Answer» ANSWER: a RATIONAL NUMBER is p/a where a =not EQUAL to 0

5.

What is rational number what you write

Answer»

ANSWER:

a RATIONAL NUMBER is p/a where a =not EQUAL to 0

Discussion

6.	Ram and Ankush had 4500 stamps altogether. If Ram hadas many stamps as Ankush, how many stamps did5Ankush have? please answer it correctly with detail explanation
Answer» Answer: Let ANKUSH have X stamps... Ram has 4/5 x TogetherTthey have 4500 stamps X+4/5x=4500 (5x+4x)/5=4500 9x=4500 × 5 X = 500 × 5 Ankush has x = 2500 and Ram has 2000 stamps Step-by-step EXPLANATION:

6.

Ram and Ankush had 4500 stamps altogether. If Ram hadas many stamps as Ankush, how many stamps did5Ankush have? please answer it correctly with detail explanation

Answer»

Answer:

Let ANKUSH have X stamps... Ram has 4/5 x TogetherTthey have 4500 stamps X+4/5x=4500 (5x+4x)/5=4500 9x=4500 × 5 X = 500 × 5 Ankush has x = 2500 and Ram has 2000 stamps

Step-by-step EXPLANATION:

Discussion

7.	Write the following sets in the set-builder form(i) (3, 6, 9, 12) (ii) {2,4,8,16,32}(iv) [2,4,6, ...} (v) {1,4,9,...,100}
Answer» Answer: A.T.Q (i)(3,6,9,12) (ii)(2,4,8,16,32) (*iii){2,4,6_ _} (IV){1,4,9_ _ 100) solutions* of *the* *given* *questions* *are* *below* 1st *part* A={X:x where x is a multiple of 3 } 2nd part B={x:x where x is 2^n n belongs to natural no, n<=5} 3rd part C={x:x where x is a multiple of 2} 4th part D={x:x where x is n^2 and n belongs to natural no., n<=10} Step-by-step explanation:

7.

Write the following sets in the set-builder form(i) (3, 6, 9, 12) (ii) {2,4,8,16,32}(iv) [2,4,6, ...} (v) {1,4,9,...,100}

Answer»

Answer:

A.T.Q

(i)(3,6,9,12)

(ii)(2,4,8,16,32)

(iii){2,4,6_ _}

(IV){1,4,9_ _ 100)

solutions of the given questions are below

1st part

A={X:x where x is a multiple of 3 }

2nd part

B={x:x where x is 2^n n belongs to natural no,

n<=5}

3rd part

C={x:x where x is a multiple of 2}

4th part

D={x:x where x is n^2 and n belongs to natural no., n<=10}

Step-by-step explanation:

Discussion

8.	A dessert has both fruit and yoghurt inside. Altogether, the mass of the fruit and yoghurt is 175g. The ratio of the mass of fruit to the mass of yoghurt is 2 : 5 What is the mass of the yoghurt?
Answer» ANSWER: no.....................

8.

A dessert has both fruit and yoghurt inside. Altogether, the mass of the fruit and yoghurt is 175g. The ratio of the mass of fruit to the mass of yoghurt is 2 : 5 What is the mass of the yoghurt?

Answer»

ANSWER:

no.....................

Discussion

9.	Find a quadratic polynomial the sum and product of zeroes are 0 and -3/5 find the zeroes
Answer» SUM of ZEROES = 0 product of zeroes = -3/5 THEREFORE the QUADRATIC POLYNOMIAL is x²- 3/5

9.

Find a quadratic polynomial the sum and product of zeroes are 0 and -3/5 find the zeroes

Answer»

SUM of ZEROES = 0

product of zeroes = -3/5

THEREFORE the QUADRATIC POLYNOMIAL is

x²- 3/5

Discussion

10.	What are co-primes? Give 5 examples of Co-primes. Are co-primes always prime? If no illustrate your answer by an examplesYou will be marked a brilliant
Answer» Answer: ⇒ Two integers a and B are said to be relatively PRIME, mutually prime, or coprime (ALSO written co-prime) if the only positive integer (factor) that DIVIDES both of them is 1. ... A set of integers can also be called coprime ⇒ Pairs of co-prime are: 2,3;3,4;4,5;5,6;6,7. ⇒ No, 15,16 are co-prime but none of them is prime. Hope it helps! THANK you!! ☺

10.

What are co-primes? Give 5 examples of Co-primes. Are co-primes always prime? If no illustrate your answer by an examplesYou will be marked a brilliant

Answer»

Answer:

⇒ Two integers a and B are said to be relatively PRIME, mutually prime, or coprime (ALSO written co-prime) if the only positive integer (factor) that DIVIDES both of them is 1. ... A set of integers can also be called coprime

⇒ Pairs of co-prime are: 2,3;3,4;4,5;5,6;6,7.

⇒ No, 15,16 are co-prime but none of them is prime.

Hope it helps!

THANK you!! ☺

Discussion

11.	shelly wants to wrap a gift box with two colour , red and green . she wants to vover 4 sides with red paper and top and bottom faces with green paper if each edge of the box is 3.5cm , what is the area of paper of each kind she needed?
Answer» Answer: 4.0 GREEN 3.0 RED she NEEDED

11.

shelly wants to wrap a gift box with two colour , red and green . she wants to vover 4 sides with red paper and top and bottom faces with green paper if each edge of the box is 3.5cm , what is the area of paper of each kind she needed?

Answer»

Answer:

4.0 GREEN

3.0 RED she NEEDED

Discussion

12.	Which one of the following has -3 as 0
Answer» ANSWER: you did not have CORRECT QUESTION. please CHECK your question.

12.

Which one of the following has -3 as 0

Answer»

ANSWER:

you did not have CORRECT QUESTION.

please CHECK your question.

Discussion

13.	What is the unit digit in (343)125 x (7777)160a) 1b) 3 c) 7d) 9다.
Answer» ANSWER: 0 Step-by-step EXPLANATION: Answer will be obvious ZERO as the one given unit digit is 0.

13.

What is the unit digit in (343)125 x (7777)160a) 1b) 3 c) 7d) 9다.

Answer»

ANSWER:

0

Step-by-step EXPLANATION:

Answer will be obvious ZERO as the one given unit digit is 0.

Discussion

14.	Find the hcf of 480, 920, 630 {by division method} take a picture and show me the answer
Answer» Hi,friend your answer is 10.See on picture.. HOPE IT HELPS YOU A LOT

14.

Find the hcf of 480, 920, 630 {by division method} take a picture and show me the answer

Answer»

Hi,friend your answer is 10.See on picture..

HOPE IT HELPS YOU A LOT

Discussion

15.	Two letters selected at random from word CIMAGE (without replacement) then find theprobability that both are vowels.1110)b)c34O4d)5fou months Raushan inined him with Rs
Answer» ANSWER: 1/3 is the CORRECT answer HOPE it will HELP you

15.

Two letters selected at random from word CIMAGE (without replacement) then find theprobability that both are vowels.1110)b)c34O4d)5fou months Raushan inined him with Rs

Answer»

ANSWER:

1/3 is the CORRECT answer

HOPE it will HELP you

Discussion

16.	3√5+6√5 .... step by step explanation plz answer its urgent please ☹️
Answer» 9root 5 3√5+6√5 =9√5(DECIMAL: 20.124612)

Discussion

17.	* Find an irrational number between- How many more there may be?examples for rational and irrational numbers?57and7 9
Answer» Step-by-step explanation: Examples of rational NUMBERS are ½, ¾, 7/4, 1/100, ETC. *Examples of IRRATIONAL numbers are √2, √3, pi(π), etc.*

17.

* Find an irrational number between- How many more there may be?examples for rational and irrational numbers?57and7 9

Answer»

Step-by-step explanation:

Examples of rational NUMBERS are ½, ¾, 7/4, 1/100, ETC.

Examples of IRRATIONAL numbers are √2, √3, pi(π), etc.

Discussion

18.	40. The ratio of boys and girls at CIMAGE Entrance exam is 4:3. If 25% of the boys and 40% of the girlsqualify the exam, the percentage of the students who could not qualify the exam is:a) 68.57%b) 65%c) 58.32%d) None of these
Answer» ANSWER: OK can you EXPLAIN the QUESTION

18.

40. The ratio of boys and girls at CIMAGE Entrance exam is 4:3. If 25% of the boys and 40% of the girlsqualify the exam, the percentage of the students who could not qualify the exam is:a) 68.57%b) 65%c) 58.32%d) None of these

Answer»

ANSWER:

OK can you EXPLAIN the QUESTION

Discussion

19.	If x=a, y=b is the solution of the pair
Answer» Answer: 3,5 Step-by-step EXPLANATION: x-y=2 x=2+y ----------1 x+y=4 ----------2 substitute 1 in 2 2+y+y=4 2+2y=4 2y=4-2 2y=2 y=1 substitue y=1 in 1 x=2+1 x=3 a=x=3 b=y=1

19.

If x=a, y=b is the solution of the pair

Answer»

Answer:

3,5

Step-by-step EXPLANATION:

x-y=2

x=2+y ----------1

x+y=4 ----------2

substitute 1 in 2

2+y+y=4

2+2y=4

2y=4-2

2y=2

y=1

substitue y=1 in 1

x=2+1

x=3

a=x=3

b=y=1

Discussion

20.	7. a (3a - 2) - 18. a b9. 3-a (4 + 7a)10. (2a + b)2 - 6a - 36 - 411. 1 - 2a - 2b - 3 (a + b)212. 3a2 - 1-2a13 2 + 3x + 2 + ax + 2a
Answer» Answer: ANSWER: (i) 5x + 7x + (-6x) = 5x + 7x -6x = 6x (ii) 3 5 x + 2 3 x + -4 5 x= 9x +10x -12x 15 = 7x 15 (iii) 5a2b +( −8a2b) + 7a2b = 5a2b − 8a2b + 7a2b 4a2b (iv) 3 4 x2 + 5x2+ (-3x2 ) + (- 1 4 x2)= 3 4 x2 - 1 4 x2 + 5x2-3x2= 1 2 x2 + 2x2 = 5 2 x2 (v) Collecting like terms and adding them: x − 3y + 4z + y − 2x − 8z + 5x − 2y − 3z = x- 2x + 5x - 3y + y - 2y + 4z - 8z - 3z = 4x -4y -7Z (vi) Collecting like terms and adding them: 2x2 − 3y2 + 5x2 + 6y2 + (− 3x2 − 4y2) = 2x2 + 5x2 - 3x2 - 3y2 +6y2 -4y2= 4x2 -y2 (vii) Collecting like terms and adding them: 5x − 2x2 − 8 + 8x2 − 7x − 9 + 3 + 7x2 − 2x = -2x2 +8x2 + 7x2 + 5x - 7x - 2x -8 -9 + 3= 13x2 -4x -14 (VIII) Collecting like terms and adding them: 2 3 a- 4 5 b+ 3 5 c +(- 3 4 a - 5 2 b+ 2 3 c )+ 5 2 a+ 7 4 b- 5 6 c b - 5 2 b + 7 4 b + 3 5 c + 2 3 c - 5 6 c = (8 -9 +30)a 12 + (-16 - 50 +35)b 20 + (18 +20 -25)c 30 = 29 12 a - 31 20 b + 13 30 c (ix) Collecting like terms and adding them: 8 5 x+ 11 7 y+ 9 4 xy + (- 3 2 x- 5 3 y- 9 5 xy)= 8 5 x - 3 2 x+ 11 7 y - 5 3 y + 9 4 xy - 9 5 xy = 1 10 x - 2 21 y + 9 20 xy

20.

7. a (3a - 2) - 18. a b9. 3-a (4 + 7a)10. (2a + b)2 - 6a - 36 - 411. 1 - 2a - 2b - 3 (a + b)212. 3a2 - 1-2a13 2 + 3x + 2 + ax + 2a

Answer»

Answer:

ANSWER:

(i)

5x + 7x + (-6x)

= 5x + 7x -6x

= 6x

(ii)

3

5

x +

2

3

x +

-4

5

x=

9x +10x -12x

15

=

7x

15

(iii)

5a2b +( −8a2b) + 7a2b

= 5a2b − 8a2b + 7a2b

4a2b

(iv)

3

4

x2 + 5x2+ (-3x2 ) + (-

1

4

x2)=

3

4

x2 -

1

4

x2 + 5x2-3x2=

1

2

x2 + 2x2 =

5

2

x2

(v) Collecting like terms and adding them:

x − 3y + 4z + y − 2x − 8z + 5x − 2y − 3z

= x- 2x + 5x - 3y + y - 2y + 4z - 8z - 3z

= 4x -4y -7Z

(vi) Collecting like terms and adding them:

2x2 − 3y2 + 5x2 + 6y2 + (− 3x2 − 4y2)

= 2x2 + 5x2 - 3x2 - 3y2 +6y2 -4y2= 4x2 -y2

(vii) Collecting like terms and adding them:

5x − 2x2 − 8 + 8x2 − 7x − 9 + 3 + 7x2 − 2x

= -2x2 +8x2 + 7x2 + 5x - 7x - 2x -8 -9 + 3= 13x2 -4x -14

(VIII) Collecting like terms and adding them:

2

3

a-

4

5

b+

3

5

c +(-

3

4

a -

5

2

b+

2

3

c )+

5

2

a+

7

4

b-

5

6

c b -

5

2

b +

7

4

b +

3

5

c +

2

3

c -

5

6

c =

(8 -9 +30)a

12

+

(-16 - 50 +35)b

20

+

(18 +20 -25)c

30

=

29

12

a -

31

20

b +

13

30

c

(ix) Collecting like terms and adding them:

8

5

x+

11

7

y+

9

4

xy + (-

3

2

x-

5

3

y-

9

5

xy)=

8

5

x -

3

2

x+

11

7

y -

5

3

y +

9

4

xy -

9

5

xy =

1

10

x -

2

21

y +

9

20

xy

Discussion

21.	Answer the following questions1.Write the four elements that an MS Excel formula can contain
Answer» Answer: ELEMENTS of MS Excel - 1 TOOLBARS, Ribbons and Tabs. 2 Name and FORMULA Boxes. 3 ROWS and Columns. 4 PAGES, Layout and Zoom. Step-by-step explanation: Mark as brainlist

21.

Answer the following questions1.Write the four elements that an MS Excel formula can contain

Answer»

Answer:

ELEMENTS of MS Excel -

1 TOOLBARS, Ribbons and Tabs.

2 Name and FORMULA Boxes.

3 ROWS and Columns.

4 PAGES, Layout and Zoom.

Step-by-step explanation:

Mark as brainlist

Discussion

22.	If(a+1/a)^2=9 then a^3+1/a^3 equals
Answer» Step-by-step explanation: 18 is the ANSWER i THINK

22.

If(a+1/a)^2=9 then a^3+1/a^3 equals

Answer»

Step-by-step explanation:

18 is the ANSWER i THINK

Discussion

23.	Tuesdayif nth, then find the value of no ho18
Answer» ANSWER: can you GIVE the QUESTION CLARITY Step-by-step EXPLANATION:

23.

Tuesdayif nth, then find the value of no ho18

Answer»

ANSWER:

can you GIVE the QUESTION CLARITY

Step-by-step EXPLANATION:

Discussion

24.	X-y=2 and 2x-2y=4 are parlore linesshow by graph
Answer» Answer: 58545845757452225588

24.

X-y=2 and 2x-2y=4 are parlore linesshow by graph

Answer»

Answer:

58545845757452225588

Discussion

25.	37. Prove thatis an irrational number.1/2-√5
Answer» YES this is IRRATIONAL this QUESTION I solved in class 10 ncert BOOKS

Discussion

26.	Using suitable indenties to find the following products:(1) (x+8) (x-10) (2) (3x+4)(3x-5)
Answer» Step-by-step explanation: 1) X(8-10) 8x-10x -2x 2) 3X(4-5) 12x-15x -3x

26.

Using suitable indenties to find the following products:(1) (x+8) (x-10) (2) (3x+4)(3x-5)

Answer»

Step-by-step explanation:

1)

X(8-10)

8x-10x

-2x

2)

3X(4-5)

12x-15x

-3x

Discussion

27.	Draw a unit circle and find the value of the following.Sin π/2
Answer» ANSWER: HOPE fully any CIRCLE can be unit circle Step-by-step explanation: sin π by 2 , π = 180 π ÷ 2 = 90 sin (90) = 1

27.

Draw a unit circle and find the value of the following.Sin π/2

Answer»

ANSWER:

HOPE fully any CIRCLE can be unit circle

Step-by-step explanation:

sin π by 2 ,

π = 180

π ÷ 2 = 90

sin (90) = 1

Discussion

28.	13.1 ÷ 1/2Help me Please give answer in fraction
Answer» ANSWER: Answer is 26.2 Step-by-step explanation: 13.1/(1/2) =13.1*2 =26.2

28.

13.1 ÷ 1/2Help me Please give answer in fraction

Answer»

ANSWER:

Answer is 26.2

Step-by-step explanation:

13.1/(1/2)

=13.1*2

=26.2

Discussion

29.	Simplify 3 upon 2 * 1 upon 5 ÷ 2 upon 3
Answer» $\green{\bold{\underline{ ☆ UPSC-ASPIRANT ☆} }}$ $\red{\bold{\underline{\underline{QUESTION:-}}}}$ To simplify:- $\frac{3}{2} \times \frac{1}{5} \div \frac{2}{3}$ $\huge\bigstar\huge\tt\underline\red{ᴀɴsᴡᴇʀ }\bigstar$ ------>>>>Here is your ANSWER<<<<-------- $➪ \frac{3}{5} \times \frac{1}{5} \div \frac{2}{3}$ $➪ \frac{3}{25} \times \frac{3}{2}$ $➪ \frac{9}{50} ✓✓ \: \: correct$ HOPE IT HELPS YOU.. _____________________ Thankyou:)

29.

Simplify 3 upon 2 * 1 upon 5 ÷ 2 upon 3

Answer»

$\green{\bold{\underline{ ☆ UPSC-ASPIRANT ☆} }}$

$\red{\bold{\underline{\underline{QUESTION:-}}}}$

To simplify:-

$\frac{3}{2} \times \frac{1}{5} \div \frac{2}{3}$

$\huge\bigstar\huge\tt\underline\red{ᴀɴsᴡᴇʀ }\bigstar$

------>>>>Here is your ANSWER<<<<--------

$➪ \frac{3}{5} \times \frac{1}{5} \div \frac{2}{3}$

$➪ \frac{3}{25} \times \frac{3}{2}$

$➪ \frac{9}{50} ✓✓ \: \: correct$

HOPE IT HELPS YOU..

_____________________

Thankyou:)

Discussion

30.	Find the value of √(382+ √(341- √289) )
Answer» Answer: 20 Step-by-step EXPLANATION: √(382+ √(341- √289) ) √(382+ √(341- 17) ) √(382+ √324 ) √(382+ 18 ) √400 =20

30.

Find the value of √(382+ √(341- √289) )

Answer»

Answer:

20

Step-by-step EXPLANATION:

√(382+ √(341- √289) )

√(382+ √(341- 17) )

√(382+ √324 )

√(382+ 18 )

√400

=20

Discussion

31.	If sin Tetha is equal to 0.766 then cos 90 degrees minus Tetha is equal to
Answer» answer is COS thata Step-by-step explanation: cos(90-theta)=cos theta because cos is positive in 1ST and 4th quadrant and 90-theta LIES in 1st quadrant

31.

If sin Tetha is equal to 0.766 then cos 90 degrees minus Tetha is equal to

Answer»

answer is COS thata

Step-by-step explanation:

cos(90-theta)=cos theta because

cos is positive in 1ST and 4th quadrant

and 90-theta LIES in 1st quadrant

Discussion

32.	Between which to whole number does 15/18 lies
Answer» Answer: 15/18= 5/6= 0.8 lies between 1 and 2 Step-by-step EXPLANATION: hope it HELPS you pls MARK brainliest answer

32.

Between which to whole number does 15/18 lies

Answer»

Answer:

15/18= 5/6= 0.8 lies between 1 and 2

Step-by-step EXPLANATION:

hope it HELPS you pls MARK brainliest answer

Discussion

33.	X =5, Y = 2 is a solution of linear equation * 1 point X +2Y =7 X+Y =7 5X + Y =7
Answer» Step-by-step EXPLANATION: samrakahini what is the ANSWER

33.

X =5, Y = 2 is a solution of linear equation * 1 point X +2Y =7 X+Y =7 5X + Y =7

Answer»

Step-by-step EXPLANATION:

samrakahini what is the ANSWER

Discussion

34.	Solve the following equation by trial and error method -b/3=2
Answer» Answer: PUT b=0 compare both side not equal than put b=-1 not equal b=-2 .... -6 both side equal so this is the answer Step-by-step EXPLANATION: HOPE it helps you pls MARK brainliest answer

34.

Solve the following equation by trial and error method -b/3=2

Answer»

Answer:

PUT b=0 compare both side

not equal than put b=-1 not equal

b=-2 .... -6 both side equal so this is the answer

Step-by-step EXPLANATION:

HOPE it helps you pls MARK brainliest answer

Discussion

35.	5/2, 5/4, 5/8,......,t20,tn
Answer» ANSWER: =5/2 , = 5/4-5/2=-5/4 = +(-1) = 5/2+(20-1) -5/4 = 5/2+(19)( -5/2) = 5/2-95/4 = (10-95) /4 = -85/4

35.

5/2, 5/4, 5/8,......,t20,tn

Answer»

ANSWER:

=5/2 , = 5/4-5/2=-5/4

= +(-1)

= 5/2+(20-1) -5/4

= 5/2+(19)( -5/2)

= 5/2-95/4

= (10-95) /4

= -85/4

Discussion

36.	Represent these number 5 by 6 on the number line
Answer» Step-by-step EXPLANATION: I HOPE this ANSWER MAY HELP you

36.

Represent these number 5 by 6 on the number line

Answer»

Step-by-step EXPLANATION:

I HOPE this ANSWER MAY HELP you

Discussion

37.	Subtract 3 square - 5 x + 7 from 5 square - 7 x + 9
Answer» Step-by-step explanation: HOPE it HELPS you pls MARK brainliest ANSWER

37.

Subtract 3 square - 5 x + 7 from 5 square - 7 x + 9

Answer»

Step-by-step explanation:

HOPE it HELPS you pls MARK brainliest ANSWER

Discussion

38.	What are ratiinal number
Answer» Answer: A rational NUMBER is a number that can be express as the ratio of two INTEGERS. A number that cannot be EXPRESSED that way is irrational. For example, one third in DECIMAL form is 0.33333333333333 (the threes GO on forever). Hope it helps!

38.

What are ratiinal number

Answer»

Answer:

A rational NUMBER is a number that can be express as the ratio of two INTEGERS. A number that cannot be EXPRESSED that way is irrational. For example, one third in DECIMAL form is 0.33333333333333 (the threes GO on forever).

Hope it helps!

Discussion

39.	A point P(x + 2, x + 4) lies in the first quadrant, the mirror image for which for x-axis is Q(5, –7). Find the value of x and then find what will be the coordinates of the point P? a) (–5, –7) b) (–5, 7) c) (5, –7) d) (5, 7
Answer» ✪ᴀɴsᴡᴇʀ✪ $\pink{\large{\boxed{\bf{x = 3, \: <klux>P</klux> = (<klux>5</klux>, 7)}}}}$ ★ᴇxᴘʟᴀɪɴᴀᴛɪᴏɴ★ It is given that mirror image of P(x+2, x+4) about x-axis is Q(5, - 7). When a point is REFLECTED about x-axis, its x co-ordinate REMAINS unchanged but its y co-ordinate becomes OPPOSITE in sign. So, $\to (x+2, - (x+4)) = (5, - 7)$ $\to x+2 = 5, - (x+4)= - 7$ $\to x = 3, x +4 = 7$ $\to x = 3, x = 3$ $\to x = 3$ And, co-ordinate of P are $\to (x+2, x+4)$ $\to (3+2, 3+4)$ $\to (5, 7)$

39.

A point P(x + 2, x + 4) lies in the first quadrant, the mirror image for which for x-axis is Q(5, –7). Find the value of x and then find what will be the coordinates of the point P? a) (–5, –7) b) (–5, 7) c) (5, –7) d) (5, 7

Answer»

✪ᴀɴsᴡᴇʀ✪

$\pink{\large{\boxed{\bf{x = 3, \: <klux>P</klux> = (<klux>5</klux>, 7)}}}}$

★ᴇxᴘʟᴀɪɴᴀᴛɪᴏɴ★

It is given that mirror image of P(x+2, x+4) about x-axis is Q(5, - 7).

When a point is REFLECTED about x-axis, its x co-ordinate REMAINS unchanged but its y co-ordinate becomes OPPOSITE in sign.

So,

$\to (x+2, - (x+4)) = (5, - 7)$

$\to x+2 = 5, - (x+4)= - 7$

$\to x = 3, x +4 = 7$

$\to x = 3, x = 3$

$\to x = 3$

And, co-ordinate of P are

$\to (x+2, x+4)$

$\to (3+2, 3+4)$

$\to (5, 7)$

Discussion

40.	Solve the quadratic equation and give your answer correct to two decimal places: 5(x+1)2 +10(x+1)+3=0. [√40=0.6325]
Answer» ✪ᴀɴsᴡᴇʀ✪ $\boxed{\bf{x = - 1.37, - 2.63}}$ ⍟ᴄᴀʟᴄᴜʟᴀᴛɪᴏɴ⍟ The equation can be solved as follows $\to 5(x+1)^2 + 10(x+1)+3=0$ For simplicity put $x+1 = y$ $\to 5y^2 +10y+3=0$ Using quadratic formula, $\to y = \frac{-10±\sqrt{10^2 - 4.5.3} }{2.5}$ $\to y = \frac{-10±\sqrt{100 - 60} }{10}$ $\to y = \frac{-10±\sqrt{40}}{10}$ $\to y = \frac{-10± 6.3246}{10}$ $\to y = \frac{-10+6.3246}{10}, \frac{-10-6.3246}{10}$ $\to y = \frac{-3.6754}{10}, \frac{-16.3246}{10}$ $\to y = - 0.36754, -1.63246$ $\to x+1 = - 0.36754, -1.63246$ $\to x = - 1 - 0.36754, - 1 -1.63246$ $\to x = - 1.36754, - 2.63246$ ROUNDING off to TWO DECIMAL places, we GET $\to x = - 1.37, - 2.63$

40.

Solve the quadratic equation and give your answer correct to two decimal places: 5(x+1)2 +10(x+1)+3=0. [√40=0.6325]

Answer»

✪ᴀɴsᴡᴇʀ✪

$\boxed{\bf{x = - 1.37, - 2.63}}$

⍟ᴄᴀʟᴄᴜʟᴀᴛɪᴏɴ⍟

The equation can be solved as follows

$\to 5(x+1)^2 + 10(x+1)+3=0$

For simplicity put $x+1 = y$

$\to 5y^2 +10y+3=0$

Using quadratic formula,

$\to y = \frac{-10±\sqrt{10^2 - 4.5.3} }{2.5}$

$\to y = \frac{-10±\sqrt{100 - 60} }{10}$

$\to y = \frac{-10±\sqrt{40}}{10}$

$\to y = \frac{-10± 6.3246}{10}$

$\to y = \frac{-10+6.3246}{10}, \frac{-10-6.3246}{10}$

$\to y = \frac{-3.6754}{10}, \frac{-16.3246}{10}$

$\to y = - 0.36754, -1.63246$

$\to x+1 = - 0.36754, -1.63246$

$\to x = - 1 - 0.36754, - 1 -1.63246$

$\to x = - 1.36754, - 2.63246$

ROUNDING off to TWO DECIMAL places, we GET

$\to x = - 1.37, - 2.63$

Discussion

41.	Dx=25 Dy=5 D=5 find value of X & y
Answer» ANSWER: Dx=25 Dy=50 at D=5 ⇒5x=25 ⇒x= 5 25 =5 5y=50 ⇒y= 5 50 =10 ⇒x=5.

41.

Dx=25 Dy=5 D=5 find value of X & y

Answer»

ANSWER:

Dx=25

Dy=50

at D=5

⇒5x=25

⇒x=

5

25

=5

5y=50

⇒y=

5

50

=10

⇒x=5.

Discussion

42.	Find the hcf and lcm of 550,625
Answer» This is your ANSWER.. HOPE it HELPS U!!!

42.

Find the hcf and lcm of 550,625

Answer»

This is your ANSWER..

HOPE it HELPS U!!!

Discussion

43.	X and y are two rational numbers.If x + y < 5 and 3 < x < 5 , which of the following values can y have
Answer» Step-by-step EXPLANATION: HOPE u understand X= 4 as 3

43.

X and y are two rational numbers.If x + y < 5 and 3 < x < 5 , which of the following values can y have

Answer»

Step-by-step EXPLANATION:

HOPE u understand

X= 4 as 3

Discussion

44.	The power of 3 of any index.the repetition of the unit digits
Answer» ANSWER: ZERO Step-by-step EXPLANATION: MARKS as BRAINIEST

44.

The power of 3 of any index.the repetition of the unit digits

Answer»

ANSWER:

ZERO

Step-by-step EXPLANATION:

MARKS as BRAINIEST

Discussion

45.	2^x=3^y=6^-z,then१/x+१/y+१/z
Answer» $\text{[math]}$ Here is your ANSWER. $\text{[math]}$

45.

2^x=3^y=6^-z,then१/x+१/y+१/z

Answer»

$\text{[math]}$

Here is your ANSWER.

$\text{[math]}$

Discussion

46.	2m=7 it was equation or not .m=?
Answer» Answer: 2m=7 is a EQUATION. m= 7/2 Hope this HELPS you. PLEASE MARK me as BRAINLIEST.

46.

2m=7 it was equation or not .m=?

Answer»

Answer:

2m=7 is a EQUATION.

m= 7/2

Hope this HELPS you. PLEASE MARK me as BRAINLIEST.

Discussion

47.	If tan A=2/3,prove that sin 2square A+cos2square A=1.
Answer» ANSWER: This is an IDENTITY, sin²A+ cos²A=1

47.

If tan A=2/3,prove that sin 2square A+cos2square A=1.

Answer»

ANSWER:

This is an IDENTITY, sin²A+ cos²A=1

Discussion

48.	4. Find the sum313and subtract it from 8.+1 5+272639
Answer» ANSWER: -4.39 Step-by-step explanation: 3 ÷ 13 = 0.23 0.23 + 31 ÷ 6 = 1.42 1.42 + 85 ÷ 39 = 3.60 3.60 - 8 = -4.39

48.

4. Find the sum313and subtract it from 8.+1 5+272639

Answer»

ANSWER:

-4.39

Step-by-step explanation:

3 ÷ 13 = 0.23

0.23 + 31 ÷ 6 = 1.42

1.42 + 85 ÷ 39 = 3.60

3.60 - 8 = -4.39

Discussion

49.	The number of students in a school
Answer» Step-by-step EXPLANATION: AVERAGE NUMBER is 542 but 3600

49.

The number of students in a school

Answer»

Step-by-step EXPLANATION:

AVERAGE NUMBER is 542

but 3600

Discussion

50.	राम एक दुकान पर 50 किलो चावल खरीदने गया वह दो प्रकार के चावल खरीदना है एक 4 दशमलव ₹50 प्रति किलो और एक ₹5 प्रति किलो व कुल मिलाकर ₹240 खर्च करता है तो उसने कितनी कम कीमत वाला चाल कितना खरीदा
Answer» Answer: 25555555414482684458

50.

राम एक दुकान पर 50 किलो चावल खरीदने गया वह दो प्रकार के चावल खरीदना है एक 4 दशमलव ₹50 प्रति किलो और एक ₹5 प्रति किलो व कुल मिलाकर ₹240 खर्च करता है तो उसने कितनी कम कीमत वाला चाल कितना खरीदा

Answer»

Answer:

25555555414482684458

Discussion

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A point P(x + 2, x + 4) lies in the first quadrant, the mirror image for which for x-axis is Q(5, –7). Find the value of x and then find what will be the coordinates of the point P? a) (–5, –7) b) (–5, 7) c) (5, –7) d) (5, 7

✪ᴀɴsᴡᴇʀ✪

★ᴇxᴘʟᴀɪɴᴀᴛɪᴏɴ★

Solve the quadratic equation and give your answer correct to two decimal places: 5(x+1)2 +10(x+1)+3=0. [√40=0.6325]

✪ᴀɴsᴡᴇʀ✪

⍟ᴄᴀʟᴄᴜʟᴀᴛɪᴏɴ⍟

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