332354 + Interview Questions in Secondary School in Math

1.	if a coin is tossed the following number of it time write the total number of possible outcomes, :three times
Answer» Answer: 8 Step-by-step EXPLANATION: H= HEADS ; T= Tails TTT HTT THT TTH HHT HTH THH HHH

1.

if a coin is tossed the following number of it time write the total number of possible outcomes, :three times

Answer»

Answer:

8

Step-by-step EXPLANATION:

H= HEADS ; T= Tails

TTT

HTT

THT

TTH

HHT

HTH

THH

HHH

Discussion

2.	Sin theta cos theta - cos theta sin theta is equal to?
Answer» Answer: Zero Step-by-step EXPLANATION: For example TAKE SIN as A and cos as B so,AB-BA=0

2.

Sin theta cos theta - cos theta sin theta is equal to?

Answer»

Answer:

Zero

Step-by-step EXPLANATION:

For example

TAKE SIN as A and cos as B

so,AB-BA=0

Discussion

3.	Give me ans of this question☝
Answer» Answer: Here is yr answer DEAR thanka Be safe Be CAREFUL Be HAPPY and most important thing is keep smiling

3.

Give me ans of this question☝

Answer»

Answer:

Here is yr answer DEAR

thanka

Be safe

Be CAREFUL

Be HAPPY and most important thing is keep smiling

Discussion

4.	Subtract 5/6 from 8/9
Answer» Answer: 3/54= 1/18 Step-by-step EXPLANATION: HÔPË ÏTẞ HÉLPFŪLL PLS MARK AS BRAINLIEST

4.

Subtract 5/6 from 8/9

Answer»

Answer:

3/54= 1/18

Step-by-step EXPLANATION:

HÔPË ÏTẞ HÉLPFŪLL

PLS MARK AS BRAINLIEST

Discussion

5.	If a cube of edge 'r' , a sphere of radius 'r' and a cylinder of height '2r' and radius 'r' have their respective surface area as S1,S2,S3.Find the ratio of their volume.(full Explanation needed)
Answer» if it HELPED then MAKE SURE to MARK as BRAINLIEST

Discussion

6.	Eep our houses neat and clean, the chanc are the least.Exercises- the following:do people keep animals in their homecan you kon rate and cockroacher
Answer» Answer: no Step-by-step explanation: yup Had a dog. but won't KEEP ANYTHING like a COCKROACH

6.

Eep our houses neat and clean, the chanc are the least.Exercises- the following:do people keep animals in their homecan you kon rate and cockroacher

Answer»

Answer:

no

Step-by-step explanation:

yup Had a dog. but won't KEEP ANYTHING like a COCKROACH

Discussion

7.	Let a graterthan o be real number and p and q are rational number a to the po
Answer» hey MATE PLEASE ask the COMPLETE question follow me and Mark me as brainiest thanks a lot

7.

Let a graterthan o be real number and p and q are rational number a to the po

Answer»

hey MATE PLEASE ask the COMPLETE question

follow me and Mark me as brainiest

thanks a lot

Discussion

8.	(20) Mr. Sinha borrows 12,000 for 4 years at compound interest rate of 8% p.a.How much will be have to repay at the end of the period.
Answer» Step-by-step explanation: 12000× 4/8 =6000 6000 × 8% = 480%

8.

(20) Mr. Sinha borrows 12,000 for 4 years at compound interest rate of 8% p.a.How much will be have to repay at the end of the period.

Answer»

Step-by-step explanation:

12000× 4/8

=6000

6000 × 8%

= 480%

Discussion

9.	a box contains 1 red,1 Black, 1 blue and 1 green. 1 ball is drawn at random and it is red. Out of the remaining, the probability of blue ball is ____.
Answer» Answer: 25% Step-by-step EXPLANATION: TOTAL BALLS = 4 Blue balls = 1 Probability = 1/4 = 25%

9.

a box contains 1 red,1 Black, 1 blue and 1 green. 1 ball is drawn at random and it is red. Out of the remaining, the probability of blue ball is ____.

Answer»

Answer:

25%

Step-by-step EXPLANATION:

TOTAL BALLS = 4

Blue balls = 1

Probability = 1/4 = 25%

Discussion

10.	Carry out of the following divisions 72a³ b⁴ c^5 by 8ab²c³
Answer» ANSWER: SOLUTION is in the ATTACHMENT

10.

Carry out of the following divisions 72a³ b⁴ c^5 by 8ab²c³

Answer»

ANSWER:

SOLUTION is in the ATTACHMENT

Discussion

11.	23+567%66=5679Solve equation
Answer» ANSWER: What should i solve. Step-by-step EXPLANATION: HOPE it HELPS.

11.

23+567%66=5679Solve equation

Answer»

ANSWER:

What should i solve.

Step-by-step EXPLANATION:

HOPE it HELPS.

Discussion

12.	What is the greatest common factor of 8m, 36m3, and 12?484m8m
Answer» ANSWER: HcF(8, 12,36) 4 Step-by-step explanation: YOUR ANSWER your QUESTION is LITTLE wierd

12.

What is the greatest common factor of 8m, 36m3, and 12?484m8m

Answer»

ANSWER:

HcF(8, 12,36)

4

Step-by-step explanation:

YOUR ANSWER

your QUESTION is LITTLE wierd

Discussion

13.	2power 5 ×5power2 write answers in exponential form
Answer» Step-by-step EXPLANATION: the ANSWER in exponential form will be the same as you have asked the question to POWER 5 into 5 power 2

13.

2power 5 ×5power2 write answers in exponential form

Answer»

Step-by-step EXPLANATION:

the ANSWER in exponential form will be the same as you have asked the question to POWER 5 into 5 power 2

Discussion

14.	If x and y are 2 distinct positive integer s then mean of x and y is always greater than. a. xy. b. root ( xy )
Answer» Given : X and y are 2 distinct positive integers To find : mean of x and y is always greater than Solution: x and y are 2 distinct positive integer s then mean of x and y is always greater than root ( xy ) x & y are distinct positive integer => Mean = (x + y )/2 as we KNOW that (√x - √ y )² > 0 if x & y are distnicts => x + y - 2√xy > 0 => x + y > 2√xy => (x + y)/2 > √xy mean of x and y is always greater than √xy Learn more: Three unequal positive NUMBERS a, b, c are in gp then prove that a + ... brainly.in/question/12902761

14.

If x and y are 2 distinct positive integer s then mean of x and y is always greater than. a. xy. b. root ( xy )

Answer»

Given : X and y are 2 distinct positive integers

To find : mean of x and y is always greater than

Solution:

x and y are 2 distinct positive integer s then mean of x and y is always greater than root ( xy )

x & y are distinct positive integer

=> Mean = (x + y )/2

as we KNOW that (√x - √ y )² > 0 if x & y are distnicts

=> x + y - 2√xy > 0

=> x + y > 2√xy

=> (x + y)/2 > √xy

mean of x and y is always greater than √xy

Learn more:

Three unequal positive NUMBERS a, b, c are in gp then prove that a + ...

brainly.in/question/12902761

Discussion

15.	Please solve it.I will mark u brainliest
Answer» Answer: preparing for ICSE HUH. Me too. Now answer is given above. All the BEST. Wish me too dude by MARKING me as BRAINLIEST

15.

Please solve it.I will mark u brainliest

Answer»

Answer:

preparing for ICSE HUH. Me too.

Now answer is given above. All the BEST. Wish me too dude by MARKING me as BRAINLIEST

Discussion

16.	ABCD is a parallelogram and AC and BD are its diagonals. If the diagonals intersect at 0 and ar(AOB) is 15cm", find the area of parallelogram ABCD.
Answer» Answer: 60CM2 Step-by-step EXPLANATION: diagnol DIVIDES //GM into 2 equal parts therefore 15 X 4 = 60

16.

ABCD is a parallelogram and AC and BD are its diagonals. If the diagonals intersect at 0 and ar(AOB) is 15cm", find the area of parallelogram ABCD.

Answer»

Answer:

60CM2

Step-by-step EXPLANATION:

diagnol DIVIDES //GM into 2 equal parts

therefore 15 X 4 = 60

Discussion

17.	Find the sum (m+5)^2
Answer» ANSWER: 4753is the answer BET LAGA LE

17.

Find the sum (m+5)^2

Answer»

ANSWER:

4753is the answer BET LAGA LE

Discussion

18.	In quadrilateral PQRS PQ = PS and RQ = RS. Prove thatanglePQR = anglePSR
Answer» Step-by-step EXPLANATION: Hope you like this ANSWER. please MARK as brainliest answer.

18.

In quadrilateral PQRS PQ = PS and RQ = RS. Prove thatanglePQR = anglePSR

Answer»

Step-by-step EXPLANATION:

Hope you like this ANSWER. please MARK as brainliest answer.

Discussion

19.	Peter spent 19/100 of his salary on food. The rest he savedWhat percentage of his salary did he save?
Answer» ANSWER: He SAVED 81% of his salary. Mark it as Brainliest answer.

19.

Peter spent 19/100 of his salary on food. The rest he savedWhat percentage of his salary did he save?

Answer»

ANSWER:

He SAVED 81% of his salary.

Mark it as Brainliest answer.

Discussion

20.	A cuboid is 25 cm long, 15 cm breadth, and 8 cm height. How much of its volume willdiffer from that of a cube with the edge of 16 cm?
Answer» hmko NHI AATA HAI BHAI saheb hmko sirf puchna hai bro sorry for THA

Discussion

21.	X+1/3=x-1/2 please solve this
Answer» Here's how to SOLVE it mate.....❤️ $x + \frac{1}{3} = x - \frac{1}{2}$ X will CANCEL out and you will GET an invalid equation. Hence question is wrong.

21.

X+1/3=x-1/2 please solve this

Answer»

Here's how to SOLVE it mate.....❤️

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

X will CANCEL out and you will GET an invalid equation.

Hence question is wrong.

Discussion

22.	a circular pond of radius 4m has a 6m wide footpath along its outer edge. Find the area of the footpath.
Answer» Answer: what is your QUESTION DEAR Step-by-step EXPLANATION: FOLLOW me plzz guys

22.

a circular pond of radius 4m has a 6m wide footpath along its outer edge. Find the area of the footpath.

Answer»

Answer:

what is your QUESTION DEAR

Step-by-step EXPLANATION:

FOLLOW me plzz guys

Discussion

23.	ABC is a triangle, obtuse angled at C. How will you construct a perpendicular from B to AC? Construct and show.
Answer» ANSWER: REFER to ATTACH IMAGES for answer

23.

ABC is a triangle, obtuse angled at C. How will you construct a perpendicular from B to AC? Construct and show.

Answer»

ANSWER:

REFER to ATTACH IMAGES for answer

Discussion

24.	Compare the following ratios a)7:9 and 11:23 b)9:11 and 7:3
Answer» ANSWER: a)7:9 B) 7:3 by CROSS MULTIPLICATION

24.

Compare the following ratios a)7:9 and 11:23 b)9:11 and 7:3

Answer»

ANSWER:

a)7:9 B) 7:3 by CROSS MULTIPLICATION

Discussion

25.	A boat can go at 8km/h in still water it was down stream for a distance of 30 km in 3 hours. Find the speed of the stream
Answer» Answer: 14 km/hr Step-by-step explanation: $\frac{30}{x} - \frac{30}{x-8} = 3$ $\frac{30x - 240 - 30x}{x^{2} - 8 } = 3$ $240 = 3x^{2} - 24x$ $x^{2} - 8x - 80 = 0$ $x^{2} - 14x + 6x - 80 = 0$ $x(x-14) +6( x-14) = 0$ $(x+6)(x- 14) = 0$ x = 14 ( OMIT the negative VALUE )

25.

A boat can go at 8km/h in still water it was down stream for a distance of 30 km in 3 hours. Find the speed of the stream

Answer»

Answer:

14 km/hr

Step-by-step explanation:

$\frac{30}{x} - \frac{30}{x-8} = 3$

$\frac{30x - 240 - 30x}{x^{2} - 8 } = 3$

$240 = 3x^{2} - 24x$

$x^{2} - 8x - 80 = 0$

$x^{2} - 14x + 6x - 80 = 0$

$x(x-14) +6( x-14) = 0$

$(x+6)(x- 14) = 0$

x = 14 ( OMIT the negative VALUE )

Discussion

26.	19 TUM 2 weeks w 210Convert the following into months:(a) 8 years 2 month (b) 7 yearsFill in the blanks:wowe3 years(c) 4 years 5 months (d)
Answer» ANSWER: a. 98 months B. 94 months c. 53 months

26.

19 TUM 2 weeks w 210Convert the following into months:(a) 8 years 2 month (b) 7 yearsFill in the blanks:wowe3 years(c) 4 years 5 months (d)

Answer»

ANSWER:

a. 98 months

B. 94 months

c. 53 months

Discussion

27.	a cistern can be filled by a tap in 7 hours and emptied by an outlet pipe in 9 hours. how many will it take to fill the cistern if both the tap and the pipe are opened together..
Answer» Answer: Let x hours be required to fill 7 hours to fill tap so volume FILLED in 1 hour =1/7th of total volume similarly PIPE in 1 hour empties =1/9 th of total volume therefore net filling of cistern in one hour=1/7 - 1/9=2/63 Therefore (2/63)×x=1( whole volume) x=63/2 hours

27.

a cistern can be filled by a tap in 7 hours and emptied by an outlet pipe in 9 hours. how many will it take to fill the cistern if both the tap and the pipe are opened together..

Answer»

Answer:

Let x hours be required to fill

7 hours to fill tap

so volume FILLED in 1 hour =1/7th of total volume

similarly PIPE in 1 hour empties =1/9 th of total volume

therefore net filling of cistern in one hour=1/7 - 1/9=2/63

Therefore (2/63)×x=1( whole volume)

x=63/2 hours

Discussion

28.	The houses of a row are numbered consecutively from 1 to 49. Show that there is a valueofr such that the sum of the numbers of the houses preceding the house numbered x isequal to the sum of the numbers of the houses following it. Find this value of x.[Hint: S.-.-S., -S]
Answer» ANSWER: Step-by-step EXPLANATION:

28.

The houses of a row are numbered consecutively from 1 to 49. Show that there is a valueofr such that the sum of the numbers of the houses preceding the house numbered x isequal to the sum of the numbers of the houses following it. Find this value of x.[Hint: S.-.-S., -S]

Answer»

ANSWER:

Step-by-step EXPLANATION:

Discussion

29.	I Polynomials :-What must be subtracted from (4x – 2x²-6x^2+2x,So that the result is exactly divisible by (2x²+ x - 1)?
Answer» <P>ANSWER: hey MATE here is your answer by (2x²+ X - 1)? 2x^2+2x-x-1 2x(x+1)-(x+1) (x+1)(2x-1) p(1)= 2x²-6x^2+2x 2(1)^2-6(1)^2+2(1) 2-6+2 -2 p(1/2)=2x²-6x^2+2x 2(1/2)^2-6(1/2)^2+2(1/2) 2×1/4-6×1/4+2×1/2 2-3/2+1

29.

I Polynomials :-What must be subtracted from (4x – 2x²-6x^2+2x,So that the result is exactly divisible by (2x²+ x - 1)?

Answer»

<P>ANSWER: hey MATE here is your answer

by (2x²+ X - 1)?

2x^2+2x-x-1

2x(x+1)-(x+1)

(x+1)(2x-1)

p(1)= 2x²-6x^2+2x

2(1)^2-6(1)^2+2(1)

2-6+2

-2

p(1/2)=2x²-6x^2+2x

2(1/2)^2-6(1/2)^2+2(1/2)

2×1/4-6×1/4+2×1/2

2-3/2+1

Discussion

30.	How many edges has a cone
Answer» Answer: 1 Step-by-step EXPLANATION: HOPE it HELPS you mark me as BRAINIEST

30.

How many edges has a cone

Answer»

Answer:

1

Step-by-step EXPLANATION:

HOPE it HELPS you

mark me as BRAINIEST

Discussion

31.	Probability of getting a Queen from a pack of a card
Answer» ANSWER: total no of outcomes =52 number of favourable outcomes =4 p(QUEEN)=4\52=1\13

31.

Probability of getting a Queen from a pack of a card

Answer»

ANSWER:

total no of outcomes =52

number of favourable outcomes =4

p(QUEEN)=4\52=1\13

Discussion

32.	7. Manisha deposited 1000 at 5% per annum ofcompound interest for 3 years with State Bankof India. What will she get back at the expiry ofthe period ?
Answer» Step-by-step EXPLANATION: Hence in this question we have the initial AMOUNT as 1000 rs and the interest rate is 5% per ANNUM interest compounded for 3 years. After one YEAR the amount will be:- 1000 + 5% x 1000 =1050. After 2 years it will be :- 1050 + 5% x 1050 = 1102.5. After 3 years it will be:- 1102.5 + 5% x 1102.5 = 1157.625 which is the answer. Hence she will get 1156.625 rs after the expiration period. Read more on Brainly.in - brainly.in/question/13756776#readmore

32.

7. Manisha deposited 1000 at 5% per annum ofcompound interest for 3 years with State Bankof India. What will she get back at the expiry ofthe period ?

Answer»

Step-by-step EXPLANATION:

Hence in this question we have the initial AMOUNT as 1000 rs and the interest rate is 5% per ANNUM interest compounded for 3 years.

After one YEAR the amount will be:-

1000 + 5% x 1000 =1050.

After 2 years it will be :-

1050 + 5% x 1050 = 1102.5.

After 3 years it will be:-

1102.5 + 5% x 1102.5 = 1157.625 which is the answer.

Hence she will get 1156.625 rs after the expiration period.

Read more on Brainly.in - brainly.in/question/13756776#readmore

Discussion

33.	2sin^-1(3/5)=cos^-1(323/325)
Answer» Answer: Sorry i dont know Step-by-step EXPLANATION: Tell me the FEATURES of your phone REDMI y3

33.

2sin^-1(3/5)=cos^-1(323/325)

Answer»

Answer:

Sorry i dont know

Step-by-step EXPLANATION:

Tell me the FEATURES of your phone REDMI y3

Discussion

34.	the marks scored by 40 student of Class in science are given below 81,55,68,79,85,43,29,68,54,73,47,35,70,64,95,44,51,74,65,35,79,52,45,54,70,83,62,64,72,92,84,76,63,43,54,38,73,68,52,54.prepare a frequency distribution table with class size of 10 marks
Answer» Answer: 9761 only ( NINE SEVEN SIX ONE)

34.

the marks scored by 40 student of Class in science are given below 81,55,68,79,85,43,29,68,54,73,47,35,70,64,95,44,51,74,65,35,79,52,45,54,70,83,62,64,72,92,84,76,63,43,54,38,73,68,52,54.prepare a frequency distribution table with class size of 10 marks

Answer»

Answer:

9761 only ( NINE SEVEN SIX ONE)

Discussion

35.	The C.p of 12 mangos is equal to the s.p of 15 mongoes. Find the loss percent (20/)
Answer» Answer: no LOSS or no profit Step-by-step explanation: as both SP nd cp are EQUAL

35.

The C.p of 12 mangos is equal to the s.p of 15 mongoes. Find the loss percent (20/)

Answer»

Answer:

no LOSS or no profit

Step-by-step explanation:

as both SP nd cp are EQUAL

Discussion

36.	PQR is a triangle right angled at P. If PQ =13cm and PR =5cm, find QRplz tell with the explanation
Answer» Step-by-step EXPLANATION: ACCORDING to PYTHAGORAS RULE: QR^=PR^+PQ^ =5^+13^ 25+169 QR^ =194 √QR^=√194 QR=QR^

36.

PQR is a triangle right angled at P. If PQ =13cm and PR =5cm, find QRplz tell with the explanation

Answer»

Step-by-step EXPLANATION:

ACCORDING to PYTHAGORAS RULE:

QR^=PR^+PQ^

=5^+13^

25+169

QR^ =194

√QR^=√194

QR=QR^

Discussion

37.	Divide ₹1200 among A, B and C in the ratio 2:3:5
Answer» ANSWER: its TOOO EASY...............

37.

Divide ₹1200 among A, B and C in the ratio 2:3:5

Answer»

ANSWER:

its TOOO EASY...............

Discussion

38.	a mirror of lengths a mirror of length 30 cm and with 20 cm is to be framed with the 2 cm wide frame find the area of the frame required that also find the cost of framing at rupees 20 per CM square
Answer» ANSWER: here length of the mirror = 30 cm width of the mirror = 20 cm width of the frame = 2cm then length of the inner mirror after framed = 30- (2+2) = 30 - 4 = 26 cm width of the inner mirror after framed = 20-(2+2) = 20-4 = 16cm then, area of the frame = area of the whole mirror - area of the inner mirror = LB- lb = 30× 20 - 26 × 16 = 600 - 416 = 184 cmsq. cost of framing per cm sq. = Rs.20 cost of framing the mirror = 20 × 184 = Rs. 3680 hope it HELPS

38.

a mirror of lengths a mirror of length 30 cm and with 20 cm is to be framed with the 2 cm wide frame find the area of the frame required that also find the cost of framing at rupees 20 per CM square

Answer»

ANSWER:

here

length of the mirror = 30 cm

width of the mirror = 20 cm

width of the frame = 2cm

then

length of the inner mirror after framed =

30- (2+2)

= 30 - 4

= 26 cm

width of the inner mirror after framed =

20-(2+2)

= 20-4

= 16cm

then,

area of the frame = area of the whole

mirror - area of the inner mirror

= LB- lb

= 30× 20 - 26 × 16

= 600 - 416

= 184 cmsq.

cost of framing per cm sq. = Rs.20

cost of framing the mirror = 20 × 184

= Rs. 3680

hope it HELPS

Discussion

39.	2078 people visited the Fun-n- Fair on the day it opened. On the second and third day, thenumber of visitors increased by 516 as compared to the previous day. On the fourth day,1140 more visitors came as compared to the third day. On the fifth day, the number ofpeople who came was double the number who came on the fourth day. How many peoplevisited the Fun-n-Fair?20,25220,53220,50020,352
Answer» Answer: just GO to SLEEP and don't do the homework next day BUNK the SCHOOL got my point just rock itttttttttttt

39.

2078 people visited the Fun-n- Fair on the day it opened. On the second and third day, thenumber of visitors increased by 516 as compared to the previous day. On the fourth day,1140 more visitors came as compared to the third day. On the fifth day, the number ofpeople who came was double the number who came on the fourth day. How many peoplevisited the Fun-n-Fair?20,25220,53220,50020,352

Answer»

Answer:

just GO to SLEEP and don't do the homework

next day BUNK the SCHOOL

got my point

just rock itttttttttttt

Discussion

40.	A card is drawn from a well-shuffled pack of 52 playing cards. Find the probability that the card drawn is 1) a red card 2) a face card 3) a spade
Answer» Answer: 1) 1/2 2) 4/13 3)1/4 Step-by-step EXPLANATION:

40.

A card is drawn from a well-shuffled pack of 52 playing cards. Find the probability that the card drawn is 1) a red card 2) a face card 3) a spade

Answer»

Answer:

1) 1/2

2) 4/13

3)1/4

Step-by-step EXPLANATION:

Discussion

41.	As number when added to three times of itself gives 20 is
Answer» Answer: 5 Step-by-step EXPLANATION: X + 3X = 20 4x = 20 x = 20/4 x = 5

41.

As number when added to three times of itself gives 20 is

Answer»

Answer:

5

Step-by-step EXPLANATION:

X + 3X = 20

4x = 20

x = 20/4

x = 5

Discussion

42.	Mes a number is a 100% increase in the number. If we take half the numberwhat would be the decrease in per cent?:1
Answer» ANSWER: Solutions Step-by-step explanation: 99%if 100%is DEPEND UPON ECONOMY means rupees

42.

Mes a number is a 100% increase in the number. If we take half the numberwhat would be the decrease in per cent?:1

Answer»

ANSWER:

Solutions

Step-by-step explanation:

99%if 100%is DEPEND UPON ECONOMY means rupees

Discussion

43.	3 The mean width of 12 iPads is 5.1 inches.The mean width of 8 Kindles is 4.8 inches. What is the mean width of the 12 iPads and 8 Kindles?
Answer» $We \:know \:that \\\boxed {\pink {Mean = \frac{Sum \:of \:the \: observations }{ Number \:of \: observations }}}$ $Given ,\: The \:mean \: width \: of \:12 \:iPads \\is \: 5.1 \: inches$ $Sum \:of \: widths \:of \: 12 \:iPads \\= 12 \times 5.1\: inches \\= 61.2 \:inches \: --(1)$ $and ,\:The \:mean \: width \: of \:8 \: Kindles \\is \: 4.8\: inches$ $Sum \:of \: widths \:of \: 8 \:Kindles \\= 8 \times 4.8\: inches \\= 38.5\:inches \: --(2)$ $Now. Total \: objects = 12 \:iPads + 8 \:Kindles \\= 20 \: objects$ $Now, Mean \: width \:of \: the \:12 \: iPads \\and \: 8 \: Kindles = \frac{(1)+(2)}{Total \: objects } \\= \frac{ 61.8+38.4}{20}\\= \frac{99.6}{20}\\= 4.98 \: inches$ THEREFORE., $\red {Mean \: width \:of \: the \:12 \: iPads}\\\red{and \: 8 \: Kindles}\green {= 4.98 \: inches }$ •••♪

43.

3 The mean width of 12 iPads is 5.1 inches.The mean width of 8 Kindles is 4.8 inches. What is the mean width of the 12 iPads and 8 Kindles?

Answer»

$We \:know \:that \\\boxed {\pink {Mean = \frac{Sum \:of \:the \: observations }{ Number \:of \: observations }}}$

$Given ,\: The \:mean \: width \: of \:12 \:iPads \\is \: 5.1 \: inches$

$Sum \:of \: widths \:of \: 12 \:iPads \\= 12 \times 5.1\: inches \\= 61.2 \:inches \: --(1)$

$and ,\:The \:mean \: width \: of \:8 \: Kindles \\is \: 4.8\: inches$

$Sum \:of \: widths \:of \: 8 \:Kindles \\= 8 \times 4.8\: inches \\= 38.5\:inches \: --(2)$

$Now. Total \: objects = 12 \:iPads + 8 \:Kindles \\= 20 \: objects$

$Now, Mean \: width \:of \: the \:12 \: iPads \\and \: 8 \: Kindles = \frac{(1)+(2)}{Total \: objects } \\= \frac{ 61.8+38.4}{20}\\= \frac{99.6}{20}\\= 4.98 \: inches$

THEREFORE.,

$\red {Mean \: width \:of \: the \:12 \: iPads}\\\red{and \: 8 \: Kindles}\green {= 4.98 \: inches }$

•••♪

Discussion

44.	Solve it and give me answer I will mark your answer as brainlist
Answer» ANSWER: *Heyaa✌️✌️ Here* is the *answer*. Hope** it helps you.

44.

Solve it and give me answer I will mark your answer as brainlist

Answer»

ANSWER:

Heyaa✌️✌️

Here is the answer.

Hope it helps you.

Discussion

45.	Cmom1 TomFind thearea of the figure
Answer» ANSWER: Where is FIGURE BRO?.........

45.

Cmom1 TomFind thearea of the figure

Answer»

ANSWER:

Where is FIGURE BRO?.........

Discussion

46.	There are exactly................to a circle through a point outside the circle.
Answer» Answer: 2 tangents *PLEASE MARK AS BRAINLIEST*

46.

There are exactly................to a circle through a point outside the circle.

Answer»

Answer:

2 tangents

PLEASE MARK AS BRAINLIEST

Discussion

47.	If A(-5, 7), B(-4, -5), C(-1, -6) andD(4, 5) are the vertices of a quadrilateral. Then, find the area of the quadrilateral ABCD.
Answer» ANSWER: HOPE this MAY HELP U

47.

If A(-5, 7), B(-4, -5), C(-1, -6) andD(4, 5) are the vertices of a quadrilateral. Then, find the area of the quadrilateral ABCD.

Answer»

ANSWER:

HOPE this MAY HELP U

Discussion

48.	Answer:AABC is a right-angled at B, and D is a point on BC. If AD = 29 cm,BD = 21 cm and CD = 27 cm. Find AC.
Answer» Step-by-step EXPLANATION: To find AC we need AB,BC By using pythagoras theorem AD Square=AB Square+BD Square 29 Square=AB Square+21 Square AB=Root 841-441 AB=Root 400 AB=20 cm BC=BD+DC BC=21+27 BC=48cm AC=Root AB Square +BC Square AC=Root 20 Square+48 Square AC=Root 400+2304 AC=Root 2704 AC=52 cm Therefore AC is 52 cm Thank you

48.

Answer:AABC is a right-angled at B, and D is a point on BC. If AD = 29 cm,BD = 21 cm and CD = 27 cm. Find AC.

Answer»

Step-by-step EXPLANATION:

To find AC we need AB,BC

By using pythagoras theorem

AD Square=AB Square+BD Square
29 Square=AB Square+21 Square
AB=Root 841-441
AB=Root 400
AB=20 cm

BC=BD+DC
BC=21+27
BC=48cm

AC=Root AB Square +BC Square
AC=Root 20 Square+48 Square
AC=Root 400+2304
AC=Root 2704
AC=52 cm

Therefore AC is 52 cm

Thank you

Discussion

49.	Plz answer quickly it is urgent
Answer» II) is x3-3 x y3-3 please give me thx or mark me as BRAINLIEST

Discussion

50.	How many edges has a cube?
Answer» ANSWER: A CUBE has 12 edges. hope this HELPS you...

50.

How many edges has a cube?

Answer»

ANSWER:

A CUBE has 12 edges.

hope this HELPS you...

Discussion

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