332354 + Interview Questions in Secondary School in Math

1.	X+y = xy. find value of y
Answer» ANSWER: CANT y just be ANYTHING LIKE for EXAMPLE 2+2=2x2

1.

X+y = xy. find value of y

Answer»

ANSWER: CANT y just be ANYTHING LIKE for EXAMPLE 2+2=2x2

Discussion

2.	Mention the property which can be used to find the product of: (-8) × 64 × (-125)
Answer» ANSWER: (-8) × 64 × (-125) = -8 × 64 × -125 =64000 mark as BRAINLIST PLEASE

2.

Mention the property which can be used to find the product of: (-8) × 64 × (-125)

Answer»

ANSWER:

(-8) × 64 × (-125)

= -8 × 64 × -125

=64000

mark as BRAINLIST PLEASE

Discussion

3.	Find ten rational numbers between-2/5 and 1/2
Answer» ANSWER: *HOPE* *THAT* MY *ANSWER* *HELPS*

3.

Find ten rational numbers between-2/5 and 1/2

Answer»

ANSWER:

HOPE THAT MY ANSWER HELPS

Discussion

4.	Find n for the series 2 + 6 + 10 + 14 + ... if the sum of the related series is 1058
Answer» $\blue{\bold{\underline{\underline{Answer:}}}}$ $\green{\tt{\therefore{Number\:of\:terms=23}}}$ $\orange{\bold{\underline{\underline{Step-by-step\:explanation:}}}}$ $\green{\underline \bold{<klux>GIVEN</klux> :}} \\ \tt: \implies A.P = 2,6,10,14,..... \\ \\ \tt: \implies Sum \: of \: n \: terms(s_{n}) = 1058 \\ \\ \red{\underline \bold{To \: Find :}} \\ \tt: \implies Number \: of \: terms \: in \:A.P = ?$ • ACCORDING to given QUESTION : $\tt \circ \: First \: term = 2 \\ \\ \tt \circ \: Common \: difference = 4 \\ \\ \bold{As \: we \: know \: that} \\ \tt: \implies s_{n} = \frac{n}{2} (2a + (n - 1)d) \\ \\ \tt: \implies 1058 = \frac{n}{2} (2 \times 2 + (n - 1) \times 4) \\ \\ \tt: \implies 1058 \times 2 = n \times (4 + 4n - 4) \\ \\ \tt: \implies 1085 \times 2 = 4 {n}^{2} \\ \\ \tt: \implies 2116 = 4 {n}^{2} \\ \\ \tt: \implies {n}^{2} = \frac{2116}{4} \\ \\ \tt: \implies {n}^{2} = 529 \\ \\ \tt: \implies n = \sqrt{529} \\ \\ \green{\tt: \implies n = \pm23 }\\ \\ \green{\tt \therefore Number \: of \: terms \: in \:A.P \: is \: 23}$

4.

Find n for the series 2 + 6 + 10 + 14 + ... if the sum of the related series is 1058

Answer»

$\blue{\bold{\underline{\underline{Answer:}}}}$

$\green{\tt{\therefore{Number\:of\:terms=23}}}$

$\orange{\bold{\underline{\underline{Step-by-step\:explanation:}}}}$

$\green{\underline \bold{<klux>GIVEN</klux> :}} \\ \tt: \implies A.P = 2,6,10,14,..... \\ \\ \tt: \implies Sum \: of \: n \: terms(s_{n}) = 1058 \\ \\ \red{\underline \bold{To \: Find :}} \\ \tt: \implies Number \: of \: terms \: in \:A.P = ?$

• ACCORDING to given QUESTION :

$\tt \circ \: First \: term = 2 \\ \\ \tt \circ \: Common \: difference = 4 \\ \\ \bold{As \: we \: know \: that} \\ \tt: \implies s_{n} = \frac{n}{2} (2a + (n - 1)d) \\ \\ \tt: \implies 1058 = \frac{n}{2} (2 \times 2 + (n - 1) \times 4) \\ \\ \tt: \implies 1058 \times 2 = n \times (4 + 4n - 4) \\ \\ \tt: \implies 1085 \times 2 = 4 {n}^{2} \\ \\ \tt: \implies 2116 = 4 {n}^{2} \\ \\ \tt: \implies {n}^{2} = \frac{2116}{4} \\ \\ \tt: \implies {n}^{2} = 529 \\ \\ \tt: \implies n = \sqrt{529} \\ \\ \green{\tt: \implies n = \pm23 }\\ \\ \green{\tt \therefore Number \: of \: terms \: in \:A.P \: is \: 23}$

Discussion

5.	The first steps in writing f(x) = 4x2 + 48x + 10 in vertex form are shown.f(x) = 4(x2 + 12x) + 10(twelve-halves) squared = 36What is the function written in vertex form?A). f(x) = 4(x + 6)2 + 10B). f(x) = 4(x + 6)2 – 26C). f(x) = 4(x + 6)2 – 134D). f(x) = 4(x + 6)2 + 154PLZ Answer Fast
Answer» Answer: option b is RIGHT PLEASE mark me brainiest GIVE me THANKS

5.

The first steps in writing f(x) = 4x2 + 48x + 10 in vertex form are shown.f(x) = 4(x2 + 12x) + 10(twelve-halves) squared = 36What is the function written in vertex form?A). f(x) = 4(x + 6)2 + 10B). f(x) = 4(x + 6)2 – 26C). f(x) = 4(x + 6)2 – 134D). f(x) = 4(x + 6)2 + 154PLZ Answer Fast

Answer»

Answer:

option b is RIGHT

PLEASE mark me brainiest

GIVE me THANKS

Discussion

6.	@Jamtaram Choudhary2,6,10,14,18,22,26,30,34,38,42,46,50,54,58इसमे की किसी भी 3संख्याओं का जोड़ 60आना चाहिए,अब देखते है कौन कौनइसका उत्तर बता सकती
Answer» ANSWER: I can't READ different LANGUAGE PLZ write in English

6.

@Jamtaram Choudhary2,6,10,14,18,22,26,30,34,38,42,46,50,54,58इसमे की किसी भी 3संख्याओं का जोड़ 60आना चाहिए,अब देखते है कौन कौनइसका उत्तर बता सकती

Answer»

ANSWER:

I can't READ different LANGUAGE PLZ write in English

Discussion

7.	Plz answer this question fast I will mark brainliest
Answer» ANSWER: ${x}^{2} = 9 \\ x = 3$

7.

Plz answer this question fast I will mark brainliest

Answer»

ANSWER:

${x}^{2} = 9 \\ x = 3$

Discussion

8.	Find the single discount equivalent to two successive discount of 20% and 10%.
Answer» Answer: SINGLE discount=20%+10%/100%+100% =30%/200% =15%(its your ans)

8.

Find the single discount equivalent to two successive discount of 20% and 10%.

Answer»

Answer:

SINGLE discount=20%+10%/100%+100%

=30%/200%

=15%(its your ans)

Discussion

9.	Complete usando as propriedades da potenciação:A² . A⁷Alguem pode me da 1 exemplo pfv
Answer» HEY mate ur ANSWER is A^2×A^7 =A^(2+7) =A^9 *mark* as BRAINLIEST PLZ ❤️

9.

Complete usando as propriedades da potenciação:A² . A⁷Alguem pode me da 1 exemplo pfv

Answer»

HEY mate

ur ANSWER is

A^2×A^7

=A^(2+7)

=A^9

mark as BRAINLIEST PLZ ❤️

Discussion

10.	20 : 6 :: 40 : mWhat is the value of m ?
Answer» here is the PROCESS DEAR..... so... $\frac{20}{6} = \frac{40}{m} \\ \\ \frac{40}{20} = \frac{m}{6} \\ \\ 2 = \frac{m}{6} \\ \\ m = 12$ . . . . . THANKYOU ❤ ＬＯＶＥＹＯＵＲＳＥＬＦ

10.

20 : 6 :: 40 : mWhat is the value of m ?

Answer»

here is the PROCESS DEAR.....

so...

$\frac{20}{6} = \frac{40}{m} \\ \\ \frac{40}{20} = \frac{m}{6} \\ \\ 2 = \frac{m}{6} \\ \\ m = 12$

.

THANKYOU ❤

ＬＯＶＥＹＯＵＲＳＥＬＦ

Discussion

11.	If x – 1 is a factor of kx^2 – 3x + k, find the value of k. Also find the other factor for this value of k.
Answer» ANSWER: 3/2 is the answer of this QUESTION.

11.

If x – 1 is a factor of kx^2 – 3x + k, find the value of k. Also find the other factor for this value of k.

Answer»

ANSWER:

3/2 is the answer of this QUESTION.

Discussion

12.	Plz solve and explain
Answer» ANSWER: answer is 17....GUESS I'm RIGHT

12.

Plz solve and explain

Answer»

ANSWER:

answer is 17....GUESS I'm RIGHT

Discussion

13.	Pls answer all the parts of this question . Pls give with solution as well .
Answer» ANSWER: answer can't OPEN FILE ...........

13.

Pls answer all the parts of this question . Pls give with solution as well .

Answer»

ANSWER:

answer can't OPEN FILE

...........

Discussion

14.	Which function in vertex form is equivalent to f(x) = x2 + x +1?A). f(x) = (x + one-quarter) squared + three-quartersB). f(x) = (x + one-quarter) squared + five-quartersC). f(x) = (x + one-half) squared + three-quartersD). f(x) = (x + one-half) squared + five-quartersPLZ Answer FAST I'm doing a test and its timed
Answer» Step-by-step EXPLANATION: the ANSWER of this QUESTION is (C)

14.

Which function in vertex form is equivalent to f(x) = x2 + x +1?A). f(x) = (x + one-quarter) squared + three-quartersB). f(x) = (x + one-quarter) squared + five-quartersC). f(x) = (x + one-half) squared + three-quartersD). f(x) = (x + one-half) squared + five-quartersPLZ Answer FAST I'm doing a test and its timed

Answer»

Step-by-step EXPLANATION:

the ANSWER of this QUESTION is (C)

Discussion

15.	Logxy^2 – logy = log (x+y) Find the value of y in term of x
Answer» Step-by-step EXPLANATION: here is the ANSWER of this QUESTION

15.

Logxy^2 – logy = log (x+y) Find the value of y in term of x

Answer»

Step-by-step EXPLANATION:

here is the ANSWER of this QUESTION

Discussion

16.	Find the value of \|-1/4×8/13\|
Answer» ANSWER:. 2/13 Step-by-step explanation: \|-1/4*8/13\| \|-2/13\| 2/13 Hope it HELPS you Pls mark as the BEST answer

16.

Find the value of |-1/4×8/13|

Answer»

ANSWER:. 2/13

Step-by-step explanation:

|-1/4*8/13|

|-2/13|

2/13

Hope it HELPS you

Pls mark as the BEST answer

Discussion

17.	Cp of tv is 10000and it sold for8000 find profit %and loss%
Answer» $Cost \:price \:of \:a \:T.V (c.p) = Rs \:10000 \\selling \: price (s.p) = Rs \:8000$ /* s.p < c.p */ He GETS LOSS . $\boxed { \pink { Loss = c.p - s p } }$ $Loss (l) = Rs \:10000 - Rs \:8000 = Rs \:2000$ $Loss \: percentage = \frac{l}{c.p} \times 100\\= \frac{2000}{10000 } \times 100 \\= 20\%$ THEREFORE., $\red { Loss } \green { = Rs \:2000 }$ $\red { Loss \: percentage} \green { = 20\% }$ •••♪

17.

Cp of tv is 10000and it sold for8000 find profit %and loss%

Answer»

$Cost \:price \:of \:a \:T.V (c.p) = Rs \:10000 \\selling \: price (s.p) = Rs \:8000$

/* s.p < c.p */

He GETS LOSS .

$\boxed { \pink { Loss = c.p - s p } }$

$Loss (l) = Rs \:10000 - Rs \:8000 = Rs \:2000$

$Loss \: percentage = \frac{l}{c.p} \times 100\\= \frac{2000}{10000 } \times 100 \\= 20\%$

THEREFORE.,

$\red { Loss } \green { = Rs \:2000 }$

$\red { Loss \: percentage} \green { = 20\% }$

•••♪

Discussion

18.	Tell highest common factor of 56 and 21
Answer» Heya.......!! Your answer is...... The Greatest Common Factor (GCF) for 56 and 21, notation CGF(56,21), is 7. Explanation: The factors of 56 are 1,2,4,7,8,14,28,56; The factors of 21 are 1,3,7,21. So, as we can see, the Greatest Common Factor or Divisor is 7, because it is the greatest number that divides EVENLY into all of them. Hope it HELPS......!!

18.

Tell highest common factor of 56 and 21

Answer»

Heya.......!!

Your answer is......

The Greatest Common Factor (GCF) for 56 and 21, notation CGF(56,21), is 7.

Explanation:

The factors of 56 are 1,2,4,7,8,14,28,56;

The factors of 21 are 1,3,7,21.

So, as we can see, the Greatest Common Factor or Divisor is 7, because it is the greatest number that divides EVENLY into all of them.

Hope it HELPS......!!

Discussion

19.	If y is directly proportional to x and y and y=20 when x=5 draw the graph of y against x
Answer» ANSWER: Step-by-step EXPLANATION:

19.

If y is directly proportional to x and y and y=20 when x=5 draw the graph of y against x

Answer»

ANSWER:

Step-by-step EXPLANATION:

Discussion

20.	Identify the base and exponent of 97
Answer» ANSWER: EXPONENT:- 88529281. Base:-7

20.

Identify the base and exponent of 97

Answer»

ANSWER:

EXPONENT:- 88529281.

Base:-7

Discussion

21.	Find the four rational number bteween 1/6 and 1/8
Answer» Answer: 13/96,14/96,15/96,16/96 Step-by-step explanation: FIRST make the denominators same by taking the lcm of 6,8 which is 24 1/6×4/4=4/24 1/8×3/3=3/24 now MULTIPLY the rationals by 5 as you want rationals and 4+1=5 4/24×4/4=16/96 3/24×4/4=12/96 so 13/96,14/96,15/96 and 16/96 are the four rationals between 1/6 and 1/8 HOPE IT HELPS

21.

Find the four rational number bteween 1/6 and 1/8

Answer»

Answer:

13/96,14/96,15/96,16/96

Step-by-step explanation:

FIRST make the denominators same by taking the lcm of 6,8 which is 24

1/6×4/4=4/24

1/8×3/3=3/24

now MULTIPLY the rationals by 5 as you want rationals and 4+1=5

4/24×4/4=16/96

3/24×4/4=12/96

so 13/96,14/96,15/96 and 16/96 are the four rationals between 1/6 and 1/8

HOPE IT HELPS

Discussion

22.	Ram has money twice of hari's money and thrice of gopal's money.lf the sum of all three's money is 44,then what is the amount of money of ram.
Answer» ANSWER: Ram's MONEY= 24 If this helps PLEASE mark me as Brainliest Step-by-step explanation: Let ram money be x Hari's money = 1/2x Gopal's money = 1/3x So According to the QUESTION, $x + \frac{1}{2} x + \frac{1}{3} x = 44$ LCM =6 $\frac{6x + 3x + 2x}{6} = \frac{11x}{6} \\ \frac{11x}{6} = 44 \\ x = \frac{44 \times 6}{11} = 24$ x=24 Hari's money = 1/2x = 12 Gopal's money =1/3x=8

22.

Ram has money twice of hari's money and thrice of gopal's money.lf the sum of all three's money is 44,then what is the amount of money of ram.

Answer»

ANSWER:

Ram's MONEY= 24

If this helps PLEASE mark me as Brainliest

Step-by-step explanation:

Let ram money be x

Hari's money = 1/2x

Gopal's money = 1/3x

So According to the QUESTION,

$x + \frac{1}{2} x + \frac{1}{3} x = 44$

LCM =6

$\frac{6x + 3x + 2x}{6} = \frac{11x}{6} \\ \frac{11x}{6} = 44 \\ x = \frac{44 \times 6}{11} = 24$

x=24

Hari's money = 1/2x = 12

Gopal's money =1/3x=8

Discussion

23.	How many natural numbers are there up to 1000
Answer» Answer: There in TOTAL 1000 natural NUMBERS are there INCLUDING 1000

23.

How many natural numbers are there up to 1000

Answer»

Answer:

There in TOTAL 1000 natural NUMBERS are there INCLUDING 1000

Discussion

24.	If P(x)=x2 _4x+3 findp(2)andp(3)
Answer» Step-by-step EXPLANATION: here is the ANSWER of the QUESTION

24.

If P(x)=x2 _4x+3 findp(2)andp(3)

Answer»

Step-by-step EXPLANATION:

here is the ANSWER of the QUESTION

Discussion

25.	0,4,9 ki chhoti chhoti sankhya banao
Answer» Step-by-step EXPLANATION: By USING 0,4,9 a) 40 b) 90 c) 49 d) 94 e) 09 f) 04

25.

0,4,9 ki chhoti chhoti sankhya banao

Answer»

Step-by-step EXPLANATION:

By USING 0,4,9

a) 40

b) 90

c) 49

d) 94

e) 09

f) 04

Discussion

26.	A² . A ⁷ ajuda pfv k
Answer» HEYA MATE ... PLEASE COMPLETE your QUESTION...

26.

A² . A ⁷ ajuda pfv k

Answer»

HEYA MATE ...

PLEASE COMPLETE your QUESTION...

Discussion

27.	State the property used by the following statements (a)-7/811/5=11/5-7/8B -23/70*1=-23/70
Answer» Answer: communication PROPERTY please MAKE me BRAINLEIST

27.

State the property used by the following statements (a)-7/811/5=11/5-7/8B -23/70*1=-23/70

Answer»

Answer:

communication PROPERTY

please MAKE me BRAINLEIST

Discussion

28.	Can you solve 11 class maths (IIT JEE) in this quarantine by self studying. ( I just gave class 10 board so don't know what to study now)
Answer» Answer: No....I would REQUEST you not to Step-by-step EXPLANATION: Instead of dabbling in advanced stuff and being semi-proficient, you could rather take a LOOK at the syllabus of class11, identify common topics of class11 and class 10 and revise those topics to perfection.....this way you could prepare yourself better for the upcoming complex topics............. Hope it HELPS,pls give brainliest.........

28.

Can you solve 11 class maths (IIT JEE) in this quarantine by self studying. ( I just gave class 10 board so don't know what to study now)

Answer»

Answer:

No....I would REQUEST you not to

Step-by-step EXPLANATION:

Instead of dabbling in advanced stuff and being semi-proficient, you could rather take a LOOK at the syllabus of class11, identify common topics of class11 and class 10 and revise those topics to perfection.....this way you could prepare yourself better for the upcoming complex topics.............

Hope it HELPS,pls give brainliest.........

Discussion

29.	Subtract the sum of 2x²-3x+4 and x²-x+5 from the sum -9x+3+5x² and -x+6+2x²
Answer» ANSWER: -14x+18+4x^2 Step-by-step EXPLANATION: SUM of -9x+3+5x^2 and -x+6+2x^2 is -14x+18+4x^2 and sum of 2x^2-3x+4 and x^2-x+5 is 3x^2-4x+9. -10x+9+7x^2-3x^2-4x+9= -14x+18+4x^2

29.

Subtract the sum of 2x²-3x+4 and x²-x+5 from the sum -9x+3+5x² and -x+6+2x²

Answer»

ANSWER:

-14x+18+4x^2

Step-by-step EXPLANATION:

SUM of -9x+3+5x^2 and -x+6+2x^2 is

-14x+18+4x^2 and sum of 2x^2-3x+4 and x^2-x+5 is 3x^2-4x+9.

-10x+9+7x^2-3x^2-4x+9=

-14x+18+4x^2

Discussion

30.	Give 3 examples of the pair of equal set.
Answer» Answer: Two sets A and B are SAID to be equal if all the elements of set A are in set B and VICE versa. The SYMBOL to denote an equal set is =. A = B MEANS set A is equal to set B and set B is equal to set A. For example; A = {2, 3, 5} B = {5, 2, 3} Here, set A and set B are equal sets.

30.

Give 3 examples of the pair of equal set.

Answer»

Answer:

Two sets A and B are SAID to be equal if all the elements of set A are in set B and VICE versa. The SYMBOL to denote an equal set is =.

A = B MEANS set A is equal to set B and set B is equal to set A.

For example;

A = {2, 3, 5}

B = {5, 2, 3}

Here, set A and set B are equal sets.

Discussion

31.	Please answer my all questions
Answer» Answer: 1) 1/2( X1(y2-y3) + X2(y3-y1)+x3(y1-y2) = 1/2 (1(-1-5) +4(5-2)+-2(2+1) = 1/2(-12+12) = 0 hence proved that the PTS are COLLINEAR bcz the collinear are those pts which do not make triangles so on FINDING the area of triangle the area we get is 0 which simply gives us result that these are collinear pts 2) these are parallel LINES X+2y=o on finding its slope we get (-1/2) and also on finding the slope of second equation the slope also come(-1/2) as we know the parallel lines have the same slope so these are parallel lines 3)as the relation between the slope of two perpendicular lines are (m1=1/-m2) so from this relation U will get the 'a' -2/3=-1/-3)a a=-2

31.

Please answer my all questions

Answer»

Answer:

1) 1/2( X1(y2-y3) + X2(y3-y1)+x3(y1-y2)

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

= 1/2(-12+12)

= 0

hence proved that the PTS are COLLINEAR

bcz the collinear are those pts which do not make triangles so on FINDING the area of triangle the area we get is 0 which simply gives us result that these are collinear pts

2) these are parallel LINES

X+2y=o

on finding its slope we get (-1/2)

and also on finding the slope of second equation the slope also come(-1/2)

as we know the parallel lines have the same slope so these are parallel lines

3)as the relation between the slope of two perpendicular lines are (m1=1/-m2)

so from this relation U will get the 'a'

-2/3=-1/-3)a

a=-2

Discussion

32.	Give 3 examples of empty sets in the set builder form.
Answer» *Hello!!* *Hello!! A = {x : 9 < x < 10, x is a natural number}* B= {x:x is an even prime *number* and x is <2} C = {x:x is a natural number, x<0} D = { x:x is a prime number, x<1} E= { x:x is a *whole* *number* , x<0} *Hope* *it HELPS... Please* *mark* as *BRAIN* *liest* *answer*....

32.

Give 3 examples of empty sets in the set builder form.

Answer»

Hello!!

Hello!! A = {x : 9 < x < 10, x is a natural number}

B= {x:x is an even prime number and x is <2}

C = {x:x is a natural number, x<0}

D = { x:x is a prime number, x<1}

E= { x:x is a whole number , x<0}

Hope it HELPS...

Please mark as BRAIN liest answer....

Discussion

33.	Find all the subsets of the following sets.i. A = {1,3} ii. B = {-1,5,9} iii. C = {0,3,9,10}
Answer» Answer: i. A={1},{3},{1,3},PHI ii. B={-1},{5},{9},{-1,5},{5,9},{-1,9},{-1,5,9},phi iii. C={0},{3},{9},{10},{0,3},{3,9},{9,10},{0,10},{0,3,9,10},phi,{0,9},{3,10},{0,3,9},{3,9,10},{0,9,10},{0,3,10}

33.

Find all the subsets of the following sets.i. A = {1,3} ii. B = {-1,5,9} iii. C = {0,3,9,10}

Answer»

Answer:

i. A={1},{3},{1,3},PHI

ii. B={-1},{5},{9},{-1,5},{5,9},{-1,9},{-1,5,9},phi

iii. C={0},{3},{9},{10},{0,3},{3,9},{9,10},{0,10},{0,3,9,10},phi,{0,9},{3,10},{0,3,9},{3,9,10},{0,9,10},{0,3,10}

Discussion

34.	Plzz do these math. I can't solve this.
Answer» Heya MATE ...... 70% KAR DIYA hai .... BAKI kar lo.... it will be hêlpful for your THINKING power....

34.

Plzz do these math. I can't solve this.

Answer»

Heya MATE ......

70% KAR DIYA hai ....

BAKI kar lo....

it will be hêlpful for your THINKING power....

Discussion

35.	The ratio of volume and surface area of sphere 14:3 find the radius of sphere
Answer» Step-by-step EXPLANATION: $\frac{volume \:of \:sphere }{surfce \: area} \: \: = \frac{14}{3} \\ = > \: \frac{ \frac{4}{3}\pi {r}^{3} }{4\pi {r}^{2} } \: \: = \: \: \frac{14}{3} \\ = > \frac{r}{3} \: \: = \: \: \frac{14}{3 } \\ = > r = 14 \: cm$

35.

The ratio of volume and surface area of sphere 14:3 find the radius of sphere

Answer»

Step-by-step EXPLANATION:

$\frac{volume \:of \:sphere }{surfce \: area} \: \: = \frac{14}{3} \\ = > \: \frac{ \frac{4}{3}\pi {r}^{3} }{4\pi {r}^{2} } \: \: = \: \: \frac{14}{3} \\ = > \frac{r}{3} \: \: = \: \: \frac{14}{3 } \\ = > r = 14 \: cm$

Discussion

36.	46914×9987=? Plz solved
Answer» 468,530,118 is the answer. please MARK as BRAINLIEST... and FOLLOW me....

36.

46914×9987=? Plz solved

Answer»

468,530,118 is the answer.

please MARK as BRAINLIEST...

and FOLLOW me....

Discussion

37.	2(15)-3(4)
Answer» ==>. 30 - 12 ==>. 18............

37.

2(15)-3(4)

Answer»

==>. 30 - 12

==>. 18............

Discussion

38.	Mention the properties in which these sums can be solved. a) (-8) × 64 × (-125)b) 52 × (-98) + 52 × (-2).
Answer» ANSWER: B) can be solved using DISTRIBUTIVE PROPERTY

38.

Mention the properties in which these sums can be solved. a) (-8) × 64 × (-125)b) 52 × (-98) + 52 × (-2).

Answer»

ANSWER:

B) can be solved using DISTRIBUTIVE PROPERTY

Discussion

39.	Find the vlaue of the polynomial5x - 4x square + 3=? if x = -1 means negative 1pls help..
Answer» Answer: = -4x²+5x+3 = -4(-1)²+5(-1)+3 = -4-5+3 =-9+3 = -6...... *Hope* *it helps.. PLEASE* *MARK as* *BRAIN liest* *answer*...

39.

Find the vlaue of the polynomial5x - 4x square + 3=? if x = -1 means negative 1pls help..

Answer»

Answer:

= -4x²+5x+3

= -4(-1)²+5(-1)+3

= -4-5+3

=-9+3

= -6......

Hope it helps..

PLEASE MARK as BRAIN liest answer...

Discussion

40.	If x=root3+root2/root3-root2 then find the value of x^2
Answer» ANSWER: the REQUIRED answer is x=5

40.

If x=root3+root2/root3-root2 then find the value of x^2

Answer»

ANSWER:

the REQUIRED answer is x=5

Discussion

41.	Please Answer This Question Linear Eqn In 2 Variables.
Answer» Step-by-step EXPLANATION: this is the ANSWER for this QUESTION

41.

Please Answer This Question Linear Eqn In 2 Variables.

Answer»

Step-by-step EXPLANATION:

this is the ANSWER for this QUESTION

Discussion

42.	For what value if k the following pair of linear equations has infinite number of solutionsx + (2k-1)y = 4kx+ 6y = k + 6
Answer» Answer: Here is your answer :- In these equations , a = k , B = 3 , c = (2k+1) A = 2(k+1) , B = 9 , C = (7k+1) These equations has infinity SOLUTIONS . so , a/A = b/B = c/C k/2k+2 = 3/9 = 2k+1/7k+1 (1) k/2k+2 =3/9 9k = 6k +6 3k = 6 k = 2 So , the value of k is 2 Hope it HELPS you ..thanks Step-by-step explanation:

42.

For what value if k the following pair of linear equations has infinite number of solutionsx + (2k-1)y = 4kx+ 6y = k + 6

Answer»

Answer:

Here is your answer :-

In these equations ,

a = k , B = 3 , c = (2k+1)

A = 2(k+1) , B = 9 , C = (7k+1)

These equations has infinity SOLUTIONS . so ,

a/A = b/B = c/C

k/2k+2 = 3/9 = 2k+1/7k+1

(1) k/2k+2 =3/9

9k = 6k +6

3k = 6

k = 2

So , the value of k is 2

Hope it HELPS you ..thanks

Step-by-step explanation:

Discussion

43.	4.* If the ratio of the curved surface areas of a solid cone and a solid right circular cylinderN having same base radii and same height is 5:8, then let us determine the ratio of their baseradii and heights.
Answer» Let the same base radii be r units and same height be H units Given : Ratio of CSAs of cone and cylinder with same height and base = 5 : 8 CSA of cone = πrl sq.units CSA of cylinder = 2πrh sq.units ⇒ πrl / 2πrh = 5 / 8 ⇒ l / 2h = 5 / 8 We KNOW that l = √( r² + h² ) ⇒ √( r² + h² ) / 2h = 5 / 8 Squaring on both sides ⇒ [ √(r² + h²) / 2h ]² = ( 5 / 8 )² ⇒ ( r² + h² ) / 4h² = 25 / 64 ⇒ 64r² + 64h² = 100h² ⇒ 64r² = 100h² - 64h² ⇒ 64r² = 36h² ⇒ r² / h² = 36 / 64 ⇒ ( r / h )² = 36 / 64 Taking square root on both sides ⇒ √( r / h )² = √( 36 / 64 ) ⇒ r / h = 6 / 8 ⇒ r / h = 3 / 4 ⇒ r : h = 3 : 4 Therefore the ratio of base RADIUS and height is 3 : 4.

43.

4.* If the ratio of the curved surface areas of a solid cone and a solid right circular cylinderN having same base radii and same height is 5:8, then let us determine the ratio of their baseradii and heights.

Answer»

Let the same base radii be r units and same height be H units

Given :

Ratio of CSAs of cone and cylinder with same height and base = 5 : 8

CSA of cone = πrl sq.units
CSA of cylinder = 2πrh sq.units

⇒ πrl / 2πrh = 5 / 8

⇒ l / 2h = 5 / 8

We KNOW that

l = √( r² + h² )

⇒ √( r² + h² ) / 2h = 5 / 8

Squaring on both sides

⇒ [ √(r² + h²) / 2h ]² = ( 5 / 8 )²

⇒ ( r² + h² ) / 4h² = 25 / 64

⇒ 64r² + 64h² = 100h²

⇒ 64r² = 100h² - 64h²

⇒ 64r² = 36h²

⇒ r² / h² = 36 / 64

⇒ ( r / h )² = 36 / 64

Taking square root on both sides

⇒ √( r / h )² = √( 36 / 64 )

⇒ r / h = 6 / 8

⇒ r / h = 3 / 4

⇒ r : h = 3 : 4

Therefore the ratio of base RADIUS and height is 3 : 4.

Discussion

44.	A lady buys grocery worth Rs 350 is one of the trending riddles of the week. Read more to know about the information related to the riddle and the answer to it.
Answer» Answer: 350 Step-by-step EXPLANATION:

44.

A lady buys grocery worth Rs 350 is one of the trending riddles of the week. Read more to know about the information related to the riddle and the answer to it.

Answer»

Answer:

350

Step-by-step EXPLANATION:

Discussion

45.	2+2×2÷3333333×222222222222××2
Answer» ANSWER: FALTU QUS MAT SAL re .....

45.

2+2×2÷3333333×222222222222××2

Answer»

ANSWER:

FALTU QUS MAT SAL re .....

Discussion

46.	Write and calculate each three examples for all laws of exponents
Answer» ANSWER: this will HELP U .........

46.

Write and calculate each three examples for all laws of exponents

Answer»

ANSWER:

this will HELP U .........

Discussion

47.	Gp of 1/4,1/2,1,2.....Find t10
Answer» Answer: In GP, tn=ar POWER n-1 a=1/4 , r = 1/4 ÷ 1/2 = 1/4 ×2/1=2 t10 = 1/4 ×2 *power* (10-1) =1/4 × 2 *power* 9 = 1/4 × 512 ( CANCELLING 512 by the DENOMINATOR) t10 = 128

47.

Gp of 1/4,1/2,1,2.....Find t10

Answer»

Answer:

In GP, tn=ar POWER n-1

a=1/4 , r = 1/4 ÷ 1/2 = 1/4 ×2/1=2

t10 = 1/4 ×2 power (10-1)

=1/4 × 2 power 9

= 1/4 × 512 ( CANCELLING 512 by the DENOMINATOR)

t10 = 128

Discussion

48.	17-12√2 is a rational number
Answer» Step-by-step EXPLANATION: No, it is IRRATIONAL number because it has surd plz MARK as BRAINLIST

48.

17-12√2 is a rational number

Answer»

Step-by-step EXPLANATION:

No, it is IRRATIONAL number

because it has surd

plz MARK as BRAINLIST

Discussion

49.	What must be added to 1 million to make it 43046230
Answer» Answer: 33046230 will be ADDED to ONE MILLION.

49.

What must be added to 1 million to make it 43046230

Answer»

Answer:

33046230 will be ADDED to ONE MILLION.

Discussion

50.	A3, e11, i19, o31,? find the missing term
Answer» ANSWER: O32 is the MISSING NUMBER

50.

A3, e11, i19, o31,? find the missing term

Answer»

ANSWER:

O32 is the MISSING NUMBER

Discussion

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