332354 + Interview Questions in Secondary School in Math

1.	there are 200 workers in a factory. the average earning of each worker in a week is 500rs, find thier total earnings for the week.
Answer» ong>Answer: Calculation for mean CLASS Mid value (x) frequency f y= 50 x−325 fy 100-150 125 4 -4 -16 150-200 175 8 -3 -24 200-250 225 14 -2 -28 250-300 275 42 -1 -42 300-350 325 50 0 0 350-400 375 40 1 40 400-450 425 32 2 64 450-500 475 6 3 18 500-550 525 4 4 16 N=200 ∑fy=138−110=28 Mean( x ˉ )=A+ N ∑fy ×d =325+ 200 28 ×50 =325+7 =Rs332

1.

there are 200 workers in a factory. the average earning of each worker in a week is 500rs, find thier total earnings for the week.

Answer»

ong>Answer:

Calculation for mean

CLASS Mid value (x) frequency

f y=

50

x−325

fy

100-150 125 4 -4 -16

150-200 175 8 -3 -24

200-250 225 14 -2 -28

250-300 275 42 -1 -42

300-350 325 50 0 0

350-400 375 40 1 40

400-450 425 32 2 64

450-500 475 6 3 18

500-550 525 4 4 16

N=200 ∑fy=138−110=28

Mean(

x

ˉ

)=A+

N

∑fy

×d

=325+

200

28

×50

=325+7

=Rs332

Discussion

2.	Q.3 Find:(a) 79.95 x 34
Answer» ONG>ANSWER: Here your answer is 2718.3

Discussion

3.	25 गईदी गाई आकति नैकी मानXसात22
Answer» ong>Answer: 25 × 22 = 550 dono mila KA 550 HO HA ga

3.

25 गईदी गाई आकति नैकी मानXसात22

Answer»

ong>Answer:

25 × 22 = 550 dono mila KA 550 HO HA ga

Discussion

4.	We observed that the denominator of all the above rational number are of the form to m into it and that is the prime factorization of denominator alipour of aur power of 5 or both
Answer» ONG>Answer: We observed that the denominator of all the above RATIONAL NUMBER are of the form to m into it and that is the PRIME factorization of denominator alipour of aur power of 5 or both

Discussion

5.	Find the value of x and y if (x+3.5) =(5, y)
Answer» ong>Answer: x is 2 and y is 5 Step-by-step explanation: (x+3, 5) =(5, y) it means: x + 3= 5 x = 5 - 3 x = 2 and y = 5

5.

Find the value of x and y if (x+3.5) =(5, y)

Answer»

ong>Answer:

x is 2 and y is 5

Step-by-step explanation:

(x+3, 5) =(5, y)

it means:

x + 3= 5

x = 5 - 3

x = 2

and

y = 5

Discussion

6.	Find the whole quantity if 70 percentage of it is 14 minutes
Answer» ong>Answer: 20 MINUTES Step-by-step explanation: 70 % = 14 minutes 100% = ? 70 % = 14 minutes 10 % = 14 / 7 = 2 minutes 100% = 10% × 10 = 2 ×10 = 20 minutes Hope this is HELPFUL. Please mark me as Brainliest.

6.

Find the whole quantity if 70 percentage of it is 14 minutes

Answer»

ong>Answer:

20 MINUTES

Step-by-step explanation:

70 % = 14 minutes

100% = ?

70 % = 14 minutes

10 % = 14 / 7 = 2 minutes

100% = 10% × 10 = 2 ×10 = 20 minutes

Hope this is HELPFUL.

Please mark me as Brainliest.

Discussion

7.	जीवन शैली में अंतर स्पष्ट कीजिए धनी दिन भर इत्र
Answer» जीवन शैली में अंतर स्पष्ट कीजिए धनी दिन भर इत्र

Discussion

8.	-6 Do as directed.Find H.C.F : 12, 45, 75Find L.C.M.: 40, 45, 48
Answer» ong>ANSWER: is ha en is SECURED is is JD TV

8.

-6 Do as directed.Find H.C.F : 12, 45, 75Find L.C.M.: 40, 45, 48

Answer»

ong>ANSWER:

is ha en is SECURED is is JD TV

Discussion

9.	If tan Ꮎ15and cos 0 =then find sin 8.15
Answer» ONG>ANSWER: TAN theta=SIN theta/cos theta 15=x/15 , so , sin theta= 225

9.

If tan Ꮎ15and cos 0 =then find sin 8.15

Answer» ONG>ANSWER:

TAN theta=SIN theta/cos theta

15=x/15 , so , sin theta= 225

Discussion

10.	What sur will amount to 1,300 in 2 years at 2 - -12% per annum at simple interest?(A) 1,200 (B) 1,100(C) 900(D) 1,000
Answer» ONG>Step-by-step explanation: A sum of money amounts to Rs.1180 and Rs. 1300 in 3 years and 5 years ... In two years there is an increase in 120 so simple interest for one YEAR is 60,for 3 years it will be 180

10.

What sur will amount to 1,300 in 2 years at 2 - -12% per annum at simple interest?(A) 1,200 (B) 1,100(C) 900(D) 1,000

Answer» ONG>Step-by-step explanation:

A sum of money amounts to Rs.1180 and Rs. 1300 in 3 years and 5 years ... In two years there is an increase in 120 so simple interest for one YEAR is 60,for 3 years it will be 180

Discussion

11.	Find the length of the hypotenousby potenous of a squarewhose side is 15cm
Answer» ONG>Answer: 3√50 Step-by-step explanation: 225+225 =450 =50×9 =3√50

11.

Find the length of the hypotenousby potenous of a squarewhose side is 15cm

Answer» ONG>Answer:

3√50

Step-by-step explanation:

225+225

=450

=50×9

=3√50

Discussion

12.	For a set of 10 observations, ∑x = 452, ∑x² = 24270 and mode = 43.7 Find Pearson's coefficient of skewness.
Answer» $\begin{gathered}\begin{gathered}\bf \:<klux>GIVEN</klux>-\begin{cases} &\sf{number \: of \: observations \: (n) = 10} \\ &\sf{ \sum \: x = 452}\\ &\sf{ \sum \: {x}^{2} = 24270 }\\ &\sf{mode = 43.7} \end{cases}\end{gathered}\end{gathered}$ $\begin{gathered}\begin{gathered}\bf \: To \: Find - \begin{cases} &\sf{Coefficient \: of \: skewness \: (S_k)}\end{cases}\end{gathered}\end{gathered}$ $\begin{gathered}\Large{\bold{{\underline{Formula \: Used - }}}} \end{gathered}$ $\underline{\boxed{ \sf \: Coefficient \: of \: skewness (S_k)= \dfrac{Mean - Mode}{<klux>STANDARD</klux> \: Deviation}}}$ $\large\underline{\sf{Solution-}}$ We know, ↝ Mean of DATA is given by $\rm :\longmapsto\:Mean( \overline{x})= \dfrac{\: \displaystyle\sum_{i=1}^{n}{x _i}}{n}$ $\rm :\longmapsto\:Mean(\overline{x}) \: = \: \dfrac{\: \displaystyle\sum_{i=1}^{10}x_i}{10}$ $\rm :\longmapsto\:Mean \: ( \overline{x}) = \dfrac{452}{10} = 45.2 - - - (1)$ Now, ↝ We know that ↝ Standard deviation of given data is given by $\rm :\longmapsto\:Standard Deviation \: (\sigma) = \sqrt{\dfrac{\: \displaystyle\sum_{i=1}^{n} {(x_i)}^{2} }{n} - {\bigg(\overline{x} \bigg) }^{2} }$ $\rm :\longmapsto\:Standard Deviation \: (\sigma) = \sqrt{\dfrac{24270}{10} - {(45.2)}^{2} }$ $\rm :\longmapsto\:Standard Deviation \: (\sigma) = \sqrt{2427 - 2043.04}$ $\rm :\longmapsto\:Standard Deviation \: (\sigma) = \sqrt{383.96}$ $\rm :\longmapsto\:Standard Deviation \: (\sigma) = 19.59 \: (approimately)$ Now, ↝ we have $\begin{gathered}\begin{gathered}\bf \: \: \: \: \: \: \: \: \: \bull \: \: \: \:\begin{cases} &\sf{Mean = 45.2} \\ &\sf{Mode = 43.7}\\ &\sf{Standard \: Deviation \: = 19.59} \end{cases}\end{gathered}\end{gathered}$ So, ↝ Coefficient of Skewness is given by $\sf \: Coefficient \: of \: skewness (S_k)= \dfrac{Mean - Mode}{Standard \: Deviation}$ $\sf \: Coefficient \: of \: skewness (S_k)= \dfrac{45.2 - 43.7}{19.59}$ $\sf \: Coefficient \: of \: skewness \: (S_k) = \dfrac{1.5}{19.59}$ $\bf\implies \:Coefficient \: of \: skewness \: (S_k) = 0.077$ Additional Information The coefficient of skewness is a measure of asymmetry in the distribution. A positive skew indicates a longer tail to the right, while a negative skew indicates a longer tail to the left. A perfectly symmetric distribution, like the normal distribution, has a skew equal to zero. For small data sets this measure is unreliable. Types of Skewness 1. Positive Skewness If the given distribution is shifted to the left and with its tail on the right side, it is a positively skewed distribution. It is also called the right-skewed distribution. A positively skewed distribution assumes a skewness value of more than zero. Since the skewness of the given distribution is on the right, the mean value is greater than the median and moves towards the right, and the mode occurs at the highest FREQUENCY of the distribution. 2. Negative Skewness If the given distribution is shifted to the right and with its tail on the left side, it is a negatively skewed distribution. It is also called a left-skewed distribution. The skewness value of any distribution showing a negative skew is always less than zero. The skewness of the given distribution is on the left; HENCE, the mean value is less than the median and moves towards the left, and the mode occurs at the highest frequency of the distribution.

12.

For a set of 10 observations, ∑x = 452, ∑x² = 24270 and mode = 43.7 Find Pearson's coefficient of skewness.

Answer»

$\begin{gathered}\begin{gathered}\bf \:<klux>GIVEN</klux>-\begin{cases} &\sf{number \: of \: observations \: (n) = 10} \\ &\sf{ \sum \: x = 452}\\ &\sf{ \sum \: {x}^{2} = 24270 }\\ &\sf{mode = 43.7} \end{cases}\end{gathered}\end{gathered}$

$\begin{gathered}\begin{gathered}\bf \: To \: Find - \begin{cases} &\sf{Coefficient \: of \: skewness \: (S_k)}\end{cases}\end{gathered}\end{gathered}$

$\begin{gathered}\Large{\bold{{\underline{Formula \: Used - }}}} \end{gathered}$

$\underline{\boxed{ \sf \: Coefficient \: of \: skewness (S_k)= \dfrac{Mean - Mode}{<klux>STANDARD</klux> \: Deviation}}}$

$\large\underline{\sf{Solution-}}$

We know,

↝ Mean of DATA is given by

$\rm :\longmapsto\:Mean( \overline{x})= \dfrac{\: \displaystyle\sum_{i=1}^{n}{x _i}}{n}$

$\rm :\longmapsto\:Mean(\overline{x}) \: = \: \dfrac{\: \displaystyle\sum_{i=1}^{10}x_i}{10}$

$\rm :\longmapsto\:Mean \: ( \overline{x}) = \dfrac{452}{10} = 45.2 - - - (1)$

Now,

↝ We know that

↝ Standard deviation of given data is given by

$\rm :\longmapsto\:Standard Deviation \: (\sigma) = \sqrt{\dfrac{\: \displaystyle\sum_{i=1}^{n} {(x_i)}^{2} }{n} - {\bigg(\overline{x} \bigg) }^{2} }$

$\rm :\longmapsto\:Standard Deviation \: (\sigma) = \sqrt{\dfrac{24270}{10} - {(45.2)}^{2} }$

$\rm :\longmapsto\:Standard Deviation \: (\sigma) = \sqrt{2427 - 2043.04}$

$\rm :\longmapsto\:Standard Deviation \: (\sigma) = \sqrt{383.96}$

$\rm :\longmapsto\:Standard Deviation \: (\sigma) = 19.59 \: (approimately)$

Now,

↝ we have

$\begin{gathered}\begin{gathered}\bf \: \: \: \: \: \: \: \: \: \bull \: \: \: \:\begin{cases} &\sf{Mean = 45.2} \\ &\sf{Mode = 43.7}\\ &\sf{Standard \: Deviation \: = 19.59} \end{cases}\end{gathered}\end{gathered}$

So,

↝ Coefficient of Skewness is given by

$\sf \: Coefficient \: of \: skewness (S_k)= \dfrac{Mean - Mode}{Standard \: Deviation}$

$\sf \: Coefficient \: of \: skewness (S_k)= \dfrac{45.2 - 43.7}{19.59}$

$\sf \: Coefficient \: of \: skewness \: (S_k) = \dfrac{1.5}{19.59}$

$\bf\implies \:Coefficient \: of \: skewness \: (S_k) = 0.077$

Additional Information

The coefficient of skewness is a measure of asymmetry in the distribution.

A positive skew indicates a longer tail to the right, while a negative skew indicates a longer tail to the left.

A perfectly symmetric distribution, like the normal distribution, has a skew equal to zero.

For small data sets this measure is unreliable.

Types of Skewness

1. Positive Skewness

If the given distribution is shifted to the left and with its tail on the right side, it is a positively skewed distribution. It is also called the right-skewed distribution.

A positively skewed distribution assumes a skewness value of more than zero. Since the skewness of the given distribution is on the right, the mean value is greater than the median and moves towards the right, and the mode occurs at the highest FREQUENCY of the distribution.

2. Negative Skewness

If the given distribution is shifted to the right and with its tail on the left side, it is a negatively skewed distribution. It is also called a left-skewed distribution. The skewness value of any distribution showing a negative skew is always less than zero.

The skewness of the given distribution is on the left; HENCE, the mean value is less than the median and moves towards the left, and the mode occurs at the highest frequency of the distribution.

Discussion

13.	(c) If a : b::c:d, show that (a + b) : (c + d) = ✓a² + b² : ✓c² + d²
Answer» ONG>ANSWER: I WOULD search about it for SURE

Discussion

14.	A trader sales two horses, each for 1,955. On the sale of one horse he gets a profit of 15% and on the sale of second horse he has a loss of 15%. Find out the total amount of profit orloss. Find the percentage profit or loss on the whole.
Answer» ONG>Answer: RS - 90 Step-by-step explanation: Cost PRICE of FIRST horse sold for Rs 1955 and making a profit of 15% =(1955×100)/115= Rs 1700 Cost Price of second horse sold for Rs 1955, incurring a loss of 15% = (1955× 100)/85 = Rs 2300. Total cost Price of the two horses = Rs 1700 + Rs 2300 = Rs 4,000/ Total sale price of the two horses = Rs 1955 × 2 = Rs 3910 Loss on the deal = Cost Price -Sale Price = Rs 4000 - Rs 3910 = Rs 90.

14.

A trader sales two horses, each for 1,955. On the sale of one horse he gets a profit of 15% and on the sale of second horse he has a loss of 15%. Find out the total amount of profit orloss. Find the percentage profit or loss on the whole.

Answer» ONG>Answer:

RS - 90

Step-by-step explanation:

Cost PRICE of FIRST horse sold for Rs 1955 and making a profit of 15% =(1955×100)/115= Rs 1700

Cost Price of second horse sold for Rs 1955, incurring a loss of 15% = (1955× 100)/85 = Rs 2300.

Total cost Price of the two horses = Rs 1700 + Rs 2300 = Rs 4,000/

Total sale price of the two horses = Rs 1955 × 2 = Rs 3910

Loss on the deal = Cost Price -Sale Price = Rs 4000 - Rs 3910 = Rs 90.

Discussion

15.	Fitting the mirror image of natural number in the plane mirrors are placed at the image 1234 us and -3 -4 we get new numbers the numbers are called negative integers is negative people includes in collection of whole numbers gives us a new collection of numbersuding collection of whole numbers gives us a new collection of numbers
Answer» ong>ANSWER: Fitting the mirror image of natural number in the plane mirrors are placed at the image 1234 us and -3 -4 we GET new numbers the numbers are called negative integers is negative PEOPLE INCLUDES in collection of whole numbers gives us a new collection of numbersuding collection of whole numbers gives us a new collection of numbers

15.

Fitting the mirror image of natural number in the plane mirrors are placed at the image 1234 us and -3 -4 we get new numbers the numbers are called negative integers is negative people includes in collection of whole numbers gives us a new collection of numbersuding collection of whole numbers gives us a new collection of numbers

Answer»

ong>ANSWER:

Fitting the mirror image of natural number in the plane mirrors are placed at the image 1234 us and -3 -4 we GET new numbers the numbers are called negative integers is negative PEOPLE INCLUDES in collection of whole numbers gives us a new collection of numbersuding collection of whole numbers gives us a new collection of numbers

Discussion

16.	Find the least number which must be substracted from 15440 to make it is a perfect square.
Answer» ong>ANSWER: 64 is the perfect square NUMBER of 15440 Mark me as BRAINLIST Answer

16.

Find the least number which must be substracted from 15440 to make it is a perfect square.

Answer»

ong>ANSWER:

64 is the perfect square NUMBER of 15440

Mark me as BRAINLIST Answer

Discussion

17.	Find the number of permutations of the letters in the word BALBHARATI
Answer» ong>Step-by-step explanation: MARK me as brainiest ∴ Number of PERMUTATIONS of the LETTERS of the WORD BALBHARATI = 2 ! 3 ! = 302400.

17.

Find the number of permutations of the letters in the word BALBHARATI

Answer»

ong>Step-by-step explanation:

MARK me as brainiest

∴ Number of PERMUTATIONS of the LETTERS of the WORD BALBHARATI = 2 ! 3 ! = 302400.

Discussion

18.	Lf 6:5 =y:2 then what will be the value of Y
Answer» ONG>Answer: 6:5 = y:2 y=30 × 2 y= 60 Step-by-step EXPLANATION: Hope it helps you Pls MARK me as a BRAINLIST

18.

Lf 6:5 =y:2 then what will be the value of Y

Answer» ONG>Answer:

6:5 = y:2

y=30 × 2

y= 60

Step-by-step EXPLANATION:

Hope it helps you Pls MARK me as a BRAINLIST

Discussion

19.	What is the relation of cot theta according to cosec theta and sec theta
Answer» ong>Step-by-step EXPLANATION: Allied to these are the THREE reciprocal RATIOS, cosecant, SECANT and cotangent: cosecθ=hypotenuseopposite,secθ=hypotenuseadjacent,cotθ=adjacentopposite. cosecθ=1sinθ,secθ=1cosθ,cotθ=1tanθ.

19.

What is the relation of cot theta according to cosec theta and sec theta

Answer»

ong>Step-by-step EXPLANATION:

Allied to these are the THREE reciprocal RATIOS, cosecant, SECANT and cotangent: cosecθ=hypotenuseopposite,secθ=hypotenuseadjacent,cotθ=adjacentopposite. cosecθ=1sinθ,secθ=1cosθ,cotθ=1tanθ.

Discussion

20.	A rectangular piece of paper 11cm×4cm is folded without overlapping to make a cylinder of height 4cm. Find the volume of the cylinder.
Answer» ong>Answer: 38.5cmcube Step-by-step explanation: The LENGTH of the PAPER BECOMES the circumference of the base of the cylinder and width becomes hight . Let radius of the cylinder= r and height=h Circumference of the base of cylinder 2r=11cm =2x22/7xr=11 r=7/4cm Now h=4cm Volume of the cylinder (V) =r2h 22/7x7/4x7/4x4cm CUBE =38.5cm cube

20.

A rectangular piece of paper 11cm×4cm is folded without overlapping to make a cylinder of height 4cm. Find the volume of the cylinder.

Answer»

ong>Answer:

38.5cmcube

Step-by-step explanation:

The LENGTH of the PAPER BECOMES the circumference of the base of the cylinder and width becomes hight .

Let radius of the cylinder= r and height=h

Circumference of the base of cylinder 2r=11cm

=2x22/7xr=11

r=7/4cm

Now h=4cm

Volume of the cylinder (V) =r2h

22/7x7/4x7/4x4cm CUBE

=38.5cm cube

Discussion

21.	Distributive property of 560 multiple 105
Answer» BR>17×(100+5) 17×100+17×5 1700+85=1785 ⟹a=17,b=100,c=5

Discussion

22.	The base area of the cylinder is 200 cm and height is 3 cm Find its volume
Answer» ong>Answer: 600 cm3 Step-by-step EXPLANATION: VOLUME of the CYLINDER is πr2h Now, πr2 = base area = 200 cm2 height of the cylinder is 3 cm Now, volume of cylinder= 200×3= 600 cm3

22.

The base area of the cylinder is 200 cm and height is 3 cm Find its volume

Answer»

ong>Answer:

600 cm3

Step-by-step EXPLANATION:

VOLUME of the CYLINDER is πr2h

Now,

πr2 = base area = 200 cm2

height of the cylinder is 3 cm

Now,

volume of cylinder= 200×3= 600 cm3

Discussion

23.	Can you please give answer of this
Answer» ONG>Answer: 1)m(arcQXR) =140° 2)QOR=2×QPR=2×70°=140° Step-by-step explanation: 3) for PQR 2x+140°=180° so, 2x=40° therefore, x=20°

23.

Can you please give answer of this

Answer» ONG>Answer:

1)m(arcQXR) =140°

2)QOR=2×QPR=2×70°=140°

Step-by-step explanation:

3) for PQR

2x+140°=180°

so, 2x=40°

therefore, x=20°

Discussion

24.	Find difference a) 10/3-5/2
Answer» ONG>Answer: 10 /3 is bigger than 5/2 Step-by-step EXPLANATION: PLEASE MARK me as a brainliast

24.

Find difference a) 10/3-5/2

Answer» ONG>Answer:

10 /3 is bigger than 5/2

Step-by-step EXPLANATION:

PLEASE MARK me as a brainliast

Discussion

25.	1. नीचे दिए गए विकल्पों में से लुप्त संख्या ज्ञात कीजिए 7?565222899387(1) 8(3) 11(2) 9(4) 6व्याख्या (1) पहली आकृति में,
Answer» cjvhrncjfy$ncbdgsnfkhgsgtahcn bdydncywg ydufhxbc. gdhfgahcn

Discussion

26.	Please answer me KML=90° and KM=6cm
Answer» PE you CORRECT ANSWER

Discussion

27.	Solve the equation r + s – 6t = ycosx I'm begging to solve this equation. i urgently needed. koi to bta do step by step explaination.
Answer» ONG>Answer: 13 1080p HD VIDEO RECORDING HD video

Discussion

28.	Decide whether the equation X - 2 X + 5 is equal to x square is quadratic equation or not
Answer» ONG>Answer: no it's not an QUADRATIC equation it's a LINEAR equation

Discussion

29.	Pls see the above photo
Answer» R to the above IMAGE HOPE it HELPS you Please make it the brainliest ANSWER

29.

Pls see the above photo

Answer» R to the above IMAGE

HOPE it HELPS you

Please make it the brainliest ANSWER

Discussion

30.	(31) पानी 4 मी. चौडी और 15 मी. ऊँची है। उस पानी की टंकी की
Answer» ONG>ANSWER: julie and BOY are the HOMEWORK and boy TIME

Discussion

31.	Let's express the following expressions as a different of two squares (4x+3y)(2x-3y)
Answer» RONG>ANSWERRRRR✨✨✨ HOPE YOU LIKE IT.. PLZ GIVE ❤️ AND DO MARK AS BRAINLIST ⭐ ¯\_(ツ)_/¯

31.

Let's express the following expressions as a different of two squares (4x+3y)(2x-3y)

Answer» RONG>ANSWERRRRR✨✨✨

HOPE YOU LIKE IT..

PLZ GIVE ❤️ AND DO MARK AS BRAINLIST ⭐

¯\_(ツ)_/¯

Discussion

32.	Distance of chord AB from the center of a circle is 8cm. Length of the chord AB is 12 cm. Find the radius of the circle.
Answer» er -RADIUS is 10 cm Hope it will HELP you ♥️

32.

Distance of chord AB from the center of a circle is 8cm. Length of the chord AB is 12 cm. Find the radius of the circle.

Answer»

er -RADIUS is 10 cm

Hope it will HELP you ♥️

Discussion

33.	The probability of selecting a vowel from the word “ MORE” is ____
Answer» ONG>ANSWER:P> P(SELECTING vowel) = 1/2 Step-by-step explanation: No. of vowels = 2 total words = 4 P(selecting vowel) = 2/4 = 1/2

33.

The probability of selecting a vowel from the word “ MORE” is ____

Answer» ONG>ANSWER:P>

P(SELECTING vowel) = 1/2

Step-by-step explanation:

No. of vowels = 2

total words = 4

P(selecting vowel) = 2/4

= 1/2

Discussion

34.	(b)sin A + cos Asec A + cosec A=sin A. Cos A
Answer» ong>ANSWER: L.H.S=(cscA−sinA)(secA−cosA) =( sinA 1 −sinA)( cosA 1 −cosA) where cscA= sinA 1 and secA= cosA 1 =( sinA 1−SIN 2 A )( cosA 1−cos 2 A ) =( sinA cos 2 A )( cosA sin 2 A ) where 1−sin 2 A=cos 2 A and 1−cos 2 A=sin 2 A =SINACOSA R.H.S= tanA+cotA 1 = cosA sinA + sinA cosA 1 = sinAcosA sin 2 A+cos 2 A 1 =sinAcosA where sin 2 A+cos 2 A=1

34.

(b)sin A + cos Asec A + cosec A=sin A. Cos A

Answer»

ong>ANSWER:

L.H.S=(cscA−sinA)(secA−cosA)

=(

sinA

1

−sinA)(

cosA

1

−cosA) where cscA=

sinA

1

and secA=

cosA

1

=(

sinA

1−SIN

2

A

)(

cosA

1−cos

2

A

)

=(

sinA

cos

2

A

)(

cosA

sin

2

A

) where 1−sin

2

A=cos

2

A and 1−cos

2

A=sin

2

A

=SINACOSA

R.H.S=

tanA+cotA

1

=

cosA

sinA

+

sinA

cosA

1

=

sinAcosA

sin

2

A+cos

2

A

1

=sinAcosA where sin

2

A+cos

2

A=1

Discussion

35.	Examples of equations in general form
Answer» ONG>Answer: The STANDARD form for linear equations in TWO variables is Ax+By=C. For example, 2x+3y=5 is a linear equation in standard form. Step-by-step EXPLANATION: please mark me as BRAINLIEST

35.

Examples of equations in general form

Answer» ONG>Answer:

The STANDARD form for linear equations in TWO variables is Ax+By=C. For example, 2x+3y=5 is a linear equation in standard form.

Step-by-step EXPLANATION:

please mark me as BRAINLIEST

Discussion

36.	Find the whole quantity if 30 % of its is 75
Answer» ong>Answer: 750 Step-by-step explanation: PLEASE MARK it BRAINLIESST

36.

Find the whole quantity if 30 % of its is 75

Answer»

ong>Answer:

750

Step-by-step explanation:

PLEASE MARK it BRAINLIESST

Discussion

37.	7.The ages of the students of class 10th are given.Calculate the mean of the ages if the ages are:14,15,14,15,16,16,14,15,14,16,15,14,17,14,15,14,16,16,15,17,16,17,18,15,16,17,15,15,16,16.(USE THE GROUPED FREQUENCY TABLE METHOD TO FIND THE MEAN) *
Answer» ONG>ANSWER: lgdlydoydotdptdptdptdptdptdptdpyfptfpyg

Discussion

38.	(52) + 53
Answer» ONG>Answer: 105 is *your* *answer. Step-by-step EXPLANATION:* HOPE IT HELP'S........

38.

(52) + 53

Answer» ONG>Answer:

105 is your answer.

Step-by-step EXPLANATION:

HOPE IT HELP'S........

Discussion

39.	Multiply (4x+9) and (3x-2)pls tell the answer now.
Answer» ONG>Answer: 4x(3x-2) +9(3x-2) 12x-8x+27x-18 4x+27x-18 31x-18 hope it HELPS u plz mark me as brainlist

39.

Multiply (4x+9) and (3x-2)pls tell the answer now.

Answer» ONG>Answer:

4x(3x-2) +9(3x-2)

12x-8x+27x-18

4x+27x-18

31x-18

hope it HELPS u

plz mark me as brainlist

Discussion

40.	I didn't understand this can u please explain
Answer» ong>Answer: An auto rickshaw charges ₹ 10 for the first KILOMETRE Then ₹ 8 for each such subsequent kilometre. So, The total charge (in Rs) for d KILOMETRES is = 10 + (d – 1)8 = 10 + 8d – 8 = 2 + 8d Hope it's HELPFUL for you

40.

I didn't understand this can u please explain

Answer»

ong>Answer:

An auto rickshaw charges ₹ 10 for the first KILOMETRE

Then ₹ 8 for each such subsequent kilometre. So, The total charge (in Rs) for d KILOMETRES is

= 10 + (d – 1)8

= 10 + 8d – 8

= 2 + 8d

Hope it's HELPFUL for you

Discussion

41.	Solve the matrix.and a+b+c=0
Answer» ong>ANSWER: উত্তর 6 হবে tell me BRAINLIEST please

41.

Solve the matrix.and a+b+c=0

Answer»

ong>ANSWER:

উত্তর 6 হবে tell me BRAINLIEST please

Discussion

42.	working together a b and c completes the work in 24 days after working together a left the work after 4 days .a and b completes remaining work in 30 days .how many days taken by c to completes the work alone
Answer» ong>Answer: one days WORK of each of A,B and C is 1/24 =5/120 ,1/30=4/120 and 1/40=3/120 respectively so that their one days work when all THREE work together is (5/120)+(4/120)+(3/120)=12/120 =1/10 TH part of the whole work so they all together can complete the work in 120/12 =10 days C left 4 days before MEANS 4 x 1/10 = 4/10 part of work is left A and B s one days work is 5/120 + 4/120 =9/120 th part so they can complete whole the work in 120/9 days and they can complete 4/10 th part of work in 4/10 x120/9 =16/3 days or 5+ (1/3) days total work will be completed in 6+ 5+(1/3)=11+(1/3) days

42.

working together a b and c completes the work in 24 days after working together a left the work after 4 days .a and b completes remaining work in 30 days .how many days taken by c to completes the work alone

Answer»

ong>Answer:

one days WORK of each of A,B and C is

1/24 =5/120 ,1/30=4/120 and 1/40=3/120 respectively

so that their one days work when all THREE work together is

(5/120)+(4/120)+(3/120)=12/120 =1/10 TH part of the whole work

so they all together can complete the work in 120/12 =10 days

C left 4 days before MEANS 4 x 1/10 = 4/10 part of work is left

A and B s one days work is 5/120 + 4/120 =9/120 th part

so they can complete whole the work in 120/9 days

and they can complete 4/10 th part of work in

4/10 x120/9 =16/3 days or 5+ (1/3) days

total work will be completed in 6+ 5+(1/3)=11+(1/3) days

Discussion

43.	If z=1 +i then find Ampitude of z
Answer» ONG>ANSWER: 1-i for the answer to this QUESTION

Discussion

44.	23 2+2 ATHEMATICS-IX)1and3-23 12+2y =NUMBER SESRationalisePAGE NO.DATE(iv)2+8. )Rationaliseby wing (2=1.414,550 2.336& .Queston - 1oris S2(IL) If9. Simplitเอ(). SimgIf ben
Answer» ong>ANSWER: UDDI BABA eeei ka hoi gava. KUCH SAMAJ me nahi aaa raha hai

44.

23 2+2 ATHEMATICS-IX)1and3-23 12+2y =NUMBER SESRationalisePAGE NO.DATE(iv)2+8. )Rationaliseby wing (2=1.414,550 2.336& .Queston - 1oris S2(IL) If9. Simplitเอ(). SimgIf ben

Answer»

ong>ANSWER:

UDDI BABA eeei ka hoi gava.

KUCH SAMAJ me nahi aaa raha hai

Discussion

45.	A television channel claims that 25% of its programmes are nature programmes. Xavier thinks this claim is incorrect. To test his hypothesis, he chooses 20 programmes at random and carries out a hypothesis test at 10% significance level a) Define the random variable, stating its parameters, and write down the two hypotheses. b) If there are only two nature programmes, calculate the test statistic. What conclusion does Xavier reach?
Answer» ong>ANSWER: up next week and ENGLISH to spanish translation in English LANGUAGE ALONG with

45.

A television channel claims that 25% of its programmes are nature programmes. Xavier thinks this claim is incorrect. To test his hypothesis, he chooses 20 programmes at random and carries out a hypothesis test at 10% significance level a) Define the random variable, stating its parameters, and write down the two hypotheses. b) If there are only two nature programmes, calculate the test statistic. What conclusion does Xavier reach?

Answer»

ong>ANSWER:

up next week and ENGLISH to spanish translation in English LANGUAGE ALONG with

Discussion

46.	The centre of a circle is (2a, a-7). Find the values of all the circle passes through the point (11.-9) and has diameter 103 units.
Answer» ONG>ANSWER: which STANDARD QUESTION is this

Discussion

47.	A sqaured -3a+4/ 5a cubed -12a sqaured +12a +13
Answer» 2a+13 = 49a Step-by-step explanation: MEANS 12 square is 24 , 12A + 13 =49a

47.

A sqaured -3a+4/ 5a cubed -12a sqaured +12a +13

Answer»

2a+13 = 49a

Step-by-step explanation:

MEANS

12 square is 24 ,

12A + 13

=49a

Discussion

48.	ये मूर्खान उपदिश ते विनाशं गच्चीत माध्यमभाषया उत्तरत
Answer» ong>Answer: Please GIVE me the STORY of this question. Please MARK me as brainlist

48.

ये मूर्खान उपदिश ते विनाशं गच्चीत माध्यमभाषया उत्तरत

Answer»

ong>Answer:

Please GIVE me the STORY of this question.

Please MARK me as brainlist

Discussion

49.	15-3
Answer» ong>Answer: 15-3 $\sqrt{2}$ =12 $\sqrt{2}$ =16.9705627 Step-by-step EXPLANATION: Mark me BRAINLIEST

49.

15-3

Answer»

ong>Answer:

15-3 $\sqrt{2}$

=12 $\sqrt{2}$

=16.9705627

Step-by-step EXPLANATION:

Mark me BRAINLIEST

Discussion

50.	If A = (1 2 3 4 5) and B = (2 3)(4 5), then find AB
Answer» ong>Answer: 2400 is answer UNIVERSITY VARANASI INDIA is a parallelogram in the Hindu university Varanasi India is

50.

If A = (1 2 3 4 5) and B = (2 3)(4 5), then find AB

Answer»

ong>Answer:

2400 is answer

UNIVERSITY VARANASI INDIA is a parallelogram in the Hindu university Varanasi India is

Discussion

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Please MARK me as brainlist

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(52) + 53

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ये मूर्खान उपदिश ते विनाशं गच्चीत माध्यमभाषया उत्तरत

15-3

If A = (1 2 3 4 5) and B = (2 3)(4 5), then find AB