332354 + Interview Questions in Secondary School in Math

1.	How to find joint probability density of two random variables?
Answer» ANSWER: probability density=Mass÷volume

1.

How to find joint probability density of two random variables?

Answer»

ANSWER:

probability

density=Mass÷volume

Discussion

2.	If n = 10 and p = 0.70 then the mean of the binomial distribution is
Answer» Answer: 7 Step-by-step EXPLANATION: MEAN of BINOMIAL distribution = np Given , N = 10, p = 0.70 Mean = 10× 0.70 = 7

2.

If n = 10 and p = 0.70 then the mean of the binomial distribution is

Answer»

Answer:

7

Step-by-step EXPLANATION:

MEAN of BINOMIAL distribution = np

Given , N = 10, p = 0.70

Mean = 10× 0.70 = 7

Discussion

3.	How many terms of the series -8,-6,-4 amount of 70?
Answer» Answer: 14 Step-by-step explanation: a = -8 d = 2 Sn = 70 Sn = N/2[2a+(n-1)d] 70 = n/2[2(-8) + (n-1)2] 70 = n(-8 + n - 1) 70 = n(n -9) n^2 -9N -70 = 0 n^2+5n-14n-70 = 0 n(n+5)-14(n+5) = 0 (n+5)(n-14) = 0 n = 14 & -5 Since terms will be positive n = 14

3.

How many terms of the series -8,-6,-4 amount of 70?

Answer»

Answer:

14

Step-by-step explanation:

a = -8

d = 2

Sn = 70

Sn = N/2[2a+(n-1)d]

70 = n/2[2(-8) + (n-1)2]

70 = n(-8 + n - 1)

70 = n(n -9)

n^2 -9N -70 = 0

n^2+5n-14n-70 = 0

n(n+5)-14(n+5) = 0

(n+5)(n-14) = 0

n = 14 & -5

Since terms will be positive n = 14

Discussion

4.	Help PlsFast Class 9Maths Coordinate geometry Pls
Answer» ANSWER: ZERO is the Answer of your QUESTION.

4.

Help PlsFast Class 9Maths Coordinate geometry Pls

Answer»

ANSWER:

ZERO is the Answer of your QUESTION.

Discussion

5.	In the given question, which one followsthe logical sequence.a-ccb-dd-C-eabcdabceacbeabdc
Answer» ANSWER: The CORRECT Answer is ABCE.

5.

In the given question, which one followsthe logical sequence.a-ccb-dd-C-eabcdabceacbeabdc

Answer»

ANSWER:

The CORRECT Answer is ABCE.

Discussion

6.	LCM of 224 , 280 , 236 find answer
Answer» Answer: hey MATE here is ur answer hope it HELPS U and mark it as brainliest and follow me

6.

LCM of 224 , 280 , 236 find answer

Answer»

Answer:

hey MATE here is ur answer

hope it HELPS U and mark it as brainliest and follow me

Discussion

7.	Find mode of numbers 2,2,2 ,3,3,4,5,5,5,5 ,6,6,8
Answer» ANSWER: Step-by-step EXPLANATION: MODE is 5

7.

Find mode of numbers 2,2,2 ,3,3,4,5,5,5,5 ,6,6,8

Answer»

ANSWER:

Step-by-step EXPLANATION:

MODE is 5

Discussion

8.	If a and b are zeros of the polynomial x square-x-k such that a-b=9 find k.
Answer» Answer: K = 20 Step-by-step explanation: We have been given the equation:- x² - x - k = 0 Its ZEROES are a and b. Also, a - b = 9 ...(1) $\dfrac{-b}{a}$ The SUM of zeroes of a polynomial is Here, $\dfrac{-(-1)}{1} = a + b$ a + b = 1 ...(2) Add equation (1) and (2):- $(a - b) + (a + b) = 9 + 1$ $2a = 10$ $a = \dfrac{10}{2}$ $a = 5$ Therefore, b = -4 $\dfrac{c}{a}$ Product of Roots = $5 \times -4 = \dfrac{-k}{1}$ $-20 = -k$ $k = 20$ Therefore, the value of k is 20 !

8.

If a and b are zeros of the polynomial x square-x-k such that a-b=9 find k.

Answer»

Answer:

K = 20

Step-by-step explanation:

We have been given the equation:-

x² - x - k = 0

Its ZEROES are a and b.

Also, a - b = 9 ...(1)

$\dfrac{-b}{a}$ The SUM of zeroes of a polynomial is

Here, $\dfrac{-(-1)}{1} = a + b$

a + b = 1 ...(2)

Add equation (1) and (2):-

$(a - b) + (a + b) = 9 + 1$

$2a = 10$

$a = \dfrac{10}{2}$

$a = 5$

Therefore, b = -4

$\dfrac{c}{a}$ Product of Roots =

$5 \times -4 = \dfrac{-k}{1}$

$-20 = -k$

$k = 20$

Therefore, the value of k is 20 !

Discussion

9.	1. A particle is moving in a circle of diameter 5m. Calculate the distance covered and thedisplacement when it completes 3 revolutions.2. A body travels a distance of 15m from A to B and then moves a distance of 20m atright angles to AB. Calculate the total distance travelled and the displacement.3. An object is moving in a circle of radius 'r'. Calculate the distance and displacementa. When it completes half the circleb. When it completes one full circle.. An object travels 16m in 4s and then another 16m in 2s. What is the average speed ofthe object?• Vishnu swims in a 90m long pool. He covers 180m in one minute by swimming fromone end to the other and back along the same straight path. Find the average speedand average velocity of Vishnu.In a long distance race, the athletics were expected to take four rounds of the tracksuch that the line of finish was same as the line of start. Suppose the length of thetrack was 200m.a. What is the total distance to be covered by the athletics?b. What is the displacement of the athletics when they touch the finish line?c. Is the motion of the athletics uniform or non-uniform?d. Is the displacement of an athletic and the distance covered by him at the end of the race equal?7.Starting from stationary position Bhuwan paddles his bicycle to attain a velocity ofor 6m/s in 30th.then he applies brakes such that the velocity of bicycle comes down to 4m/s in the next 5s. calculate the acceleration of the bicycle in both the cases
Answer» Answer: 1)distance=3(2πr) =6×(22/7)×5×5 =3300/7 displacement =ZERO(0)

9.

1. A particle is moving in a circle of diameter 5m. Calculate the distance covered and thedisplacement when it completes 3 revolutions.2. A body travels a distance of 15m from A to B and then moves a distance of 20m atright angles to AB. Calculate the total distance travelled and the displacement.3. An object is moving in a circle of radius 'r'. Calculate the distance and displacementa. When it completes half the circleb. When it completes one full circle.. An object travels 16m in 4s and then another 16m in 2s. What is the average speed ofthe object?• Vishnu swims in a 90m long pool. He covers 180m in one minute by swimming fromone end to the other and back along the same straight path. Find the average speedand average velocity of Vishnu.In a long distance race, the athletics were expected to take four rounds of the tracksuch that the line of finish was same as the line of start. Suppose the length of thetrack was 200m.a. What is the total distance to be covered by the athletics?b. What is the displacement of the athletics when they touch the finish line?c. Is the motion of the athletics uniform or non-uniform?d. Is the displacement of an athletic and the distance covered by him at the end of the race equal?7.Starting from stationary position Bhuwan paddles his bicycle to attain a velocity ofor 6m/s in 30th.then he applies brakes such that the velocity of bicycle comes down to 4m/s in the next 5s. calculate the acceleration of the bicycle in both the cases

Answer»

Answer:

1)distance=3(2πr)

=6×(22/7)×5×5

=3300/7

displacement =ZERO(0)

Discussion

10.	Find the zero of polynomial4x square - 4 x -3
Answer» Step-by-step explanation: 4x^2-4x-3 4x^2-2x+6x-3 (2x+3)(2x-1) X=-3/2. X=1/2 Please MARK its as BRAINLIEST

10.

Find the zero of polynomial4x square - 4 x -3

Answer»

Step-by-step explanation:

4x^2-4x-3

4x^2-2x+6x-3

(2x+3)(2x-1)

X=-3/2. X=1/2

Please MARK its as BRAINLIEST

Discussion

11.	The sum of two rational number is minus 3 by 7 if one of the number is 5by 8 find the other
Answer» ANSWER: other RATIONAL no=3/7-5/8 (24-35)/56 -11/56

11.

The sum of two rational number is minus 3 by 7 if one of the number is 5by 8 find the other

Answer»

ANSWER:

other RATIONAL no=3/7-5/8

(24-35)/56

-11/56

Discussion

12.	Mr srinivasan spend 4/7of his income on household expenses 1/7
Answer» Step-by-step explanation: kya? Yaar SAMAJH MEIN NAHI AATA hai question

12.

Mr srinivasan spend 4/7of his income on household expenses 1/7

Answer»

Step-by-step explanation:

kya? Yaar SAMAJH MEIN NAHI AATA hai question

Discussion

13.	two NCC cadet group A and B are facing East and West direction respectively they were given following command left turn about turn right and left turn as list which direction group A and B are facing now number one east west number to west east number 3 North South number 4 south north
Answer» ANSWER: the answer will be NUMBER 3 NORTH SOUTH

13.

two NCC cadet group A and B are facing East and West direction respectively they were given following command left turn about turn right and left turn as list which direction group A and B are facing now number one east west number to west east number 3 North South number 4 south north

Answer»

ANSWER:

the answer will be NUMBER 3 NORTH SOUTH

Discussion

14.	What is the measure of angle of equilateral triangle
Answer» Answer: all angles of TRIANGLE is 60 Step-by-step EXPLANATION: there is no explanation .....you can DRAW and see on paper they all are same 60

14.

What is the measure of angle of equilateral triangle

Answer»

Answer:

all angles of TRIANGLE is 60

Step-by-step EXPLANATION:

there is no explanation .....you can DRAW and see on paper they all are same 60

Discussion

15.	Five rational numbers between 1/4 and 1/3
Answer» Answer: 3/10;4/10;5/10;6/10;7/10

15.

Five rational numbers between 1/4 and 1/3

Answer»

Answer:

3/10;4/10;5/10;6/10;7/10

Discussion

16.	Find the area of the isosceles triangle whose each of the equal sides is 8 cm and the base is 9 cm.
Answer» Answer: Step-by-step EXPLANATION: HOPE it helps Please MARK it brainliest :)

16.

Find the area of the isosceles triangle whose each of the equal sides is 8 cm and the base is 9 cm.

Answer»

Answer:

Step-by-step EXPLANATION:

HOPE it helps

Please MARK it brainliest :)

Discussion

17.	Find the value of. (0.2*0.16)+(0.6x0.91)(0.2x0.3)
Answer» ANSWER: 0.040736 Step-by-step EXPLANATION: its UR answer

17.

Find the value of. (0.2*0.16)+(0.6x0.91)(0.2x0.3)

Answer»

ANSWER:

0.040736

Step-by-step EXPLANATION:

its UR answer

Discussion

18.	√2/√2+√3-√5 rationalise the denominator of each of the following
Answer» Step-by-step EXPLANATION: no NEED of RATIONALIZING

18.

√2/√2+√3-√5 rationalise the denominator of each of the following

Answer»

Step-by-step EXPLANATION:

no NEED of RATIONALIZING

Discussion

19.	to NCC cadet groups A and B are facing East and West direction respectively they were given following commands left turn about turn right turn and left and at last which direction group A and B are facing now
Answer» ANSWER: A is FACING towards SOUTH and B is facing towards north

19.

to NCC cadet groups A and B are facing East and West direction respectively they were given following commands left turn about turn right turn and left and at last which direction group A and B are facing now

Answer»

ANSWER:

A is FACING towards SOUTH and B is facing towards north

Discussion

20.	(√11-4√2) (3√2+√5) simplify the following expression
Answer» ANSWER: HOPE it will HELP U........

20.

(√11-4√2) (3√2+√5) simplify the following expression

Answer»

ANSWER:

HOPE it will HELP U........

Discussion

21.	3. Find the average of these numbers:a) 24 kg, 32 kg, 43 kg , 16 kg , 75 kgb) 124, 137, 114, 125
Answer» a) The average of 24 kg, 32 kg, 43 kg , 16 kg , 75 kg is 38 kg. b) The average of 124, 137, 114, 125 is 125. Step-by-step EXPLANATION: To find : The average of these numbers ? Solution : Average is the SUM of the numbers divided by total number of observation i.e. $A=\frac{\sum x_n}{n}$ a) 24 kg, 32 kg, 43 kg , 16 kg , 75 kg The average of observation is $A=\frac{24+32+43+16+75}{5}$ $A=\frac{190}{5}$ $A=38$ b) 124, 137, 114, 125 The average of observation is $A=\frac{124+137+114+125}{4}$ $A=\frac{500}{4}$ $A=125$ #LEARN more Average of numbers between 125 and 149 brainly.in/question/11826459

21.

3. Find the average of these numbers:a) 24 kg, 32 kg, 43 kg , 16 kg , 75 kgb) 124, 137, 114, 125

Answer»

a) The average of 24 kg, 32 kg, 43 kg , 16 kg , 75 kg is 38 kg.

b) The average of 124, 137, 114, 125 is 125.

Step-by-step EXPLANATION:

To find : The average of these numbers ?

Solution :

Average is the SUM of the numbers divided by total number of observation

i.e. $A=\frac{\sum x_n}{n}$

a) 24 kg, 32 kg, 43 kg , 16 kg , 75 kg

The average of observation is

$A=\frac{24+32+43+16+75}{5}$

$A=\frac{190}{5}$

$A=38$

b) 124, 137, 114, 125

The average of observation is

$A=\frac{124+137+114+125}{4}$

$A=\frac{500}{4}$

$A=125$

#LEARN more

Average of numbers between 125 and 149

brainly.in/question/11826459

Discussion

22.	Pls question number 8
Answer» ANSWER: /B=/C (BA \|\|CD) THUS /C+/D+/E=180° 37°+48°-180°=x° x°=95°

22.

Pls question number 8

Answer»

ANSWER:

/B=/C (BA ||CD)

THUS /C+/D+/E=180°

37°+48°-180°=x°

x°=95°

Discussion

23.	Hey!___96 points___plss plsss solve it...........
Answer» Step-by-step explanation: Taking LHS : $\frac{ \sin(2x) - \sin(3x) + \sin(4x) }{ \<klux>COS</klux>(2x) - \cos(3x) + \cos(4x) }$ [note that: $\frac{2x + 4x}{2} = 3x$ $= > \frac{( \sin(2x )+ \sin(4x) - \sin(3x) ) }{( \cos(2x) + \cos(4x) - \cos(3x) }$ ALSO we know that: sin(A+B) = 2sin((A+B)/2)cos((A-B)/2) =>cos(A+B) = 2 cos((A+B) /2)cos(A-B)/2) $= > \frac{2 \sin( \frac{2x + 4x}{2} ) \times \cos( \frac{2x - 4x}{2} ) - \sin(3x) }{2 \cos( \frac{2x + 4x}{2} ) \times \cos( \frac{2x - 4x}{2} ) - \cos(3x) }$ $= > \frac{2 \sin(3x) \times \cos( - x) - \sin(3x) }{2 \cos(3x) \times \cos( - x) - \cos(3x) }$ $= > \frac{ \sin(3x))(2 \cos(x) - 1)) }{ \cos(3x)((2 \cos(x) - 1 )) }$ *Now* *the* *same* *term* *will* *cancel* *out* *THEREFORE* : $= > \frac{ \sin(3x) }{ \cos(3x) }$ => *TAN3X* = *RHS* *Hence* *proved! HOPE* IT HELPS YOU

23.

Hey!_96 points_plss plsss solve it...........

Answer»

Step-by-step explanation:

Taking LHS :

$\frac{ \sin(2x) - \sin(3x) + \sin(4x) }{ \<klux>COS</klux>(2x) - \cos(3x) + \cos(4x) }$

[note that:

$\frac{2x + 4x}{2} = 3x$

$= > \frac{( \sin(2x )+ \sin(4x) - \sin(3x) ) }{( \cos(2x) + \cos(4x) - \cos(3x) }$

ALSO we know that:

sin(A+B) = 2sin((A+B)/2)cos((A-B)/2)

=>cos(A+B) = 2 cos((A+B) /2)cos(A-B)/2)

$= > \frac{2 \sin( \frac{2x + 4x}{2} ) \times \cos( \frac{2x - 4x}{2} ) - \sin(3x) }{2 \cos( \frac{2x + 4x}{2} ) \times \cos( \frac{2x - 4x}{2} ) - \cos(3x) }$

$= > \frac{2 \sin(3x) \times \cos( - x) - \sin(3x) }{2 \cos(3x) \times \cos( - x) - \cos(3x) }$

$= > \frac{ \sin(3x))(2 \cos(x) - 1)) }{ \cos(3x)((2 \cos(x) - 1 )) }$

Now the same term will cancel out THEREFORE :

$= > \frac{ \sin(3x) }{ \cos(3x) }$

=> TAN3X = RHS

Hence proved!

HOPE IT HELPS YOU

Discussion

24.	Find first 5 numbers divisible by 2 3 and 5
Answer» Answer: The 5 NUMBERS divisible by 2, 3 and 5 30, 90, 180, 120, 150

24.

Find first 5 numbers divisible by 2 3 and 5

Answer»

Answer:

The 5 NUMBERS divisible by 2, 3 and 5 30, 90, 180, 120, 150

Discussion

25.	What is mean by compendo and div
Answer» Componendo and Dividendo We all know that ratio of two numbers is done to compare the numbers. These ratios become proportional. And to solve questions from proportion we require laws. We have DISCUSSED two laws Invertendo and Alternendo in our previous articles, and today the discussion is on Componendo and Dividendo. Componendo In Componendo the basic rule that you need to remember is if a : b : : c : d than (a + b) : b : : (c + d) : d. Thus, in Componendo as you can see that you need to add the denominator to numerator given in the ratios and then equate them. If you are using the rule on the left-hand side then you also need to use the rule on the right-hand side. Componendo Example Q. Suppose the weekly salaries of two women are in the ratio of 4: 7. If each of the ladies receives an increment of Rs. 25 in their respective salary, the ratio of their salaries will be changed to 3: 5. What is their respective salary? A. 200 & 350 B. 210 & 320 C. 220 & 350 D. 210 & 350 Ans: Here we are given the ratio of the salaries of two women. After the increment in their salary, the ratio is changed. As the salary is increased in the given question, Componendo law will be applied on both the sides. Let’s start by assuming that the initial salary of both the women is Rs. x. So, the ratio of their salaries will be 4x and 7x. Now, after an increase in their salaries, their final salary will be 4x + 25 and 7x + 25. This ratio will be equal to 3/5. Thus, the given equation will be WRITTEN as, 4x + 25/7x + 25 = 3/5 => 5(4x + 25) = 3(7x + 25) => 20x + 125 = 21x + 75 => x = 50 Thus, the initial salary was Rs. 50. Now, based on the ratio their salary will be 4(50) : 7(50) => 200 : 350. So, the correct answer is A. Dividendo In the law of Dividendo, if a : b : : c : d then (a – b) : b : : (c – d) : d. In dividendo instead of addition, you are required to subtract the denominator from numerator in both the ratios. REST everything in this law is similar to the componendo. Example Q. The present ages of P and Q are represented in the ratio as 6: 4. Five years ago their ages were in the ratio 5 : 3. What are their present ages? A. 25 and 15 years B. 26 and 16 years C. 28 and 18 years D. 30 and 20 years Suppose that P’s present age is 6x, so the current age of Q will be 4x years. Now, we are given the ratio of their age five years back. Thus, their age during that time would have been 6x – 5 and 4x – 5 respectively. It is given that ratio of their ages is 5 : 3. Thus, the equation will be, 6x–54x–5 = 53 => 3(6x – 5) = 5(4x – 5) => 18x – 15 = 20x – 25 => 2x = 10 => x = 5 years. Thus, the present ages of P and Q will be 30 and 20 respectively. So, the correct answer is D. Componendo and Dividendo There is one more law where you can use both componendo and dividendo together. In this law if a : b : : c : d than (a + b) : (a – b) : : (c + d) : (c – d). Thus, when using together you have to apply components in the numerator and dividend in the numerator. Practice Questions 1. The total of Rs. 431 are to be divided among three workers P, Q, and R such that 8 times P’s share is equal to 12 times Q’s share which is equal to 6 times R’s share. How much did A make? A. Rs. 122 B. Rs. 144 C. Rs. 150 D. Rs. 156 The correct answer is B.

25.

What is mean by compendo and div

Answer»

Componendo and Dividendo

We all know that ratio of two numbers is done to compare the numbers. These ratios become proportional. And to solve questions from proportion we require laws. We have DISCUSSED two laws Invertendo and Alternendo in our previous articles, and today the discussion is on Componendo and Dividendo.

Componendo

In Componendo the basic rule that you need to remember is if a : b : : c : d than (a + b) : b : : (c + d) : d. Thus, in Componendo as you can see that you need to add the denominator to numerator given in the ratios and then equate them. If you are using the rule on the left-hand side then you also need to use the rule on the right-hand side.

Componendo

Example

Q. Suppose the weekly salaries of two women are in the ratio of 4: 7. If each of the ladies receives an increment of Rs. 25 in their respective salary, the ratio of their salaries will be changed to 3: 5. What is their respective salary?

A. 200 & 350 B. 210 & 320

C. 220 & 350 D. 210 & 350

Ans: Here we are given the ratio of the salaries of two women. After the increment in their salary, the ratio is changed. As the salary is increased in the given question, Componendo law will be applied on both the sides.

Let’s start by assuming that the initial salary of both the women is Rs. x. So, the ratio of their salaries will be 4x and 7x. Now, after an increase in their salaries, their final salary will be 4x + 25 and 7x + 25. This ratio will be equal to 3/5. Thus, the given equation will be WRITTEN as,

4x + 25/7x + 25 = 3/5

=> 5(4x + 25) = 3(7x + 25)

=> 20x + 125 = 21x + 75 => x = 50

Thus, the initial salary was Rs. 50. Now, based on the ratio their salary will be 4(50) : 7(50) => 200 : 350. So, the correct answer is A.

Dividendo

In the law of Dividendo, if a : b : : c : d then (a – b) : b : : (c – d) : d. In dividendo instead of addition, you are required to subtract the denominator from numerator in both the ratios. REST everything in this law is similar to the componendo.

Example

Q. The present ages of P and Q are represented in the ratio as 6: 4. Five years ago their ages were in the ratio 5 : 3. What are their present ages?

A. 25 and 15 years B. 26 and 16 years

C. 28 and 18 years D. 30 and 20 years

Suppose that P’s present age is 6x, so the current age of Q will be 4x years. Now, we are given the ratio of their age five years back. Thus, their age during that time would have been 6x – 5 and 4x – 5 respectively. It is given that ratio of their ages is 5 : 3. Thus, the equation will be, 6x–54x–5 = 53

=> 3(6x – 5) = 5(4x – 5)

=> 18x – 15 = 20x – 25 => 2x = 10 => x = 5 years. Thus, the present ages of P and Q will be 30 and 20 respectively. So, the correct answer is D.

Componendo and Dividendo

There is one more law where you can use both componendo and dividendo together. In this law if a : b : : c : d than (a + b) : (a – b) : : (c + d) : (c – d). Thus, when using together you have to apply components in the numerator and dividend in the numerator.

Practice Questions

1. The total of Rs. 431 are to be divided among three workers P, Q, and R such that 8 times P’s share is equal to 12 times Q’s share which is equal to 6 times R’s share. How much did A make?

A. Rs. 122 B. Rs. 144 C. Rs. 150 D. Rs. 156

The correct answer is B.

Discussion

26.	What is Monic polynomial
Answer» ANSWER: monic POLYNOMIAL is single variable polynomial which leading COFFIECENT is EQUAL to 1.

26.

What is Monic polynomial

Answer»

ANSWER:

monic POLYNOMIAL is single variable polynomial which leading COFFIECENT is EQUAL to 1.

Discussion

27.	Find the area of equilateral triangle wth side 10 cm
Answer» Step-by-step EXPLANATION: AREA of equilateral∆= (√3/4)side² = (√3/4)10² cm² =(√3/4)*100 cm² = 25√3cm²

27.

Find the area of equilateral triangle wth side 10 cm

Answer»

Step-by-step EXPLANATION:

AREA of equilateral∆= (√3/4)*side²

= (√3/4)*10² cm²

=(√3/4)*100 cm²

= 25√3cm²

Discussion

28.	. Which one is greater: (1) 52 x 3 or (52)
Answer» *Heya❤ $52 \times 3 \: \: or \: (52) \\ 156 \: \: or \: 52 \\ \\ 156 \: is \: greater \: \\ so.. \\ 52 \times 3 > (52)$ Hope it HELPS you* ✌✌✌

28.

. Which one is greater: (1) 52 x 3 or (52)

Answer»

Heya❤

$52 \times 3 \: \: or \: (52) \\ 156 \: \: or \: 52 \\ \\ 156 \: is \: greater \: \\ so.. \\ 52 \times 3 > (52)$

Hope it HELPS you

✌✌✌

Discussion

29.	Find the smallest num. which 3456must be multiplied to make it a perfect cube
Answer» ANSWER: multiply by 4, the result will be PERFECT cube

29.

Find the smallest num. which 3456must be multiplied to make it a perfect cube

Answer»

ANSWER:

multiply by 4, the result will be PERFECT cube

Discussion

30.	17.50011. The budget for a birthday party was Rs. 50,000. Out of this Rs. 17500was spent on refreshments, Rs 25,750 was given to the event management company andRs 4580 given foraway as tips to various workers. The balance was given for charity. Findcharity.
Answer» ANSWER: (17500 + 25750+4580)-50000 = 2170

30.

17.50011. The budget for a birthday party was Rs. 50,000. Out of this Rs. 17500was spent on refreshments, Rs 25,750 was given to the event management company andRs 4580 given foraway as tips to various workers. The balance was given for charity. Findcharity.

Answer»

ANSWER:

(17500 + 25750+4580)-50000 = 2170

Discussion

31.	LCM of 4,5,25,13 find answer
Answer» Answer: 6500 MULTIPLY all no. Step-by-step explanation: 4×5×25×l3 = 6500

31.

LCM of 4,5,25,13 find answer

Answer»

Answer:

6500 MULTIPLY all no.

Step-by-step explanation:

4×5×25×l3 = 6500

Discussion

32.	Is 0.3 the multiplicative reciprocal of 31 3 ? Why or why not?
Answer» Step-by-step explanation: 3 1/3 = 10/3 0.3 = 3/10 a * 1/a =1 then 1/a is MULTIPLICATIVE INVERSE of a 0.3* 3 1/3 = 3/10 * 10/3 =1 therefore 0.3 is multiplicative inverse of 3 1/3

32.

Is 0.3 the multiplicative reciprocal of 31 3 ? Why or why not?

Answer»

Step-by-step explanation:

3 1/3 = 10/3

0.3 = 3/10

a * 1/a =1

then 1/a is MULTIPLICATIVE INVERSE of a

0.3* 3 1/3 = 3/10 * 10/3 =1

therefore 0.3 is multiplicative inverse of 3 1/3

Discussion

33.	X/3+4/3=2/3(4x-1)-(2x-x-1/3)
Answer» Answer: 4=-1which is absurd Step-by-step EXPLANATION: xupon3+4upon3=2upon3 (4x-1)-(2x-x+1)upon3 3x+4upon3=(4x-1)-(6x-x-1)upon3 3x+4upon3=2(4x-1)-5x-1)upon3 3x+4=8x-2-5x+1 3x+4=3x-1 4=-1 which is absurd hence the GIVEN QUESTION MIGHT be INCORRECT

33.

X/3+4/3=2/3(4x-1)-(2x-x-1/3)

Answer»

Answer:

4=-1which is absurd

Step-by-step EXPLANATION:

xupon3+4upon3=2upon3

(4x-1)-(2x-x+1)upon3

3x+4upon3=(4x-1)-(6x-x-1)upon3

3x+4upon3=2(4x-1)-5x-1)upon3

3x+4=8x-2-5x+1

3x+4=3x-1

4=-1 which is absurd

hence the GIVEN QUESTION MIGHT be INCORRECT

Discussion

34.	Hey guys ✌️✌️⭐️➡️ Which city is known as Forbidden City and why ? 【yr inbox kardo koi... plz 】π_π
Answer» hi buddy ✌️✌️ ¥●UR @Π$ ¡$ ⤵️⤵️⤵️ The palace museum in Beijing , China is KNOW as FORBIDDEN City . HOPE u like follow me ❣️

34.

Hey guys ✌️✌️⭐️➡️ Which city is known as Forbidden City and why ? 【yr inbox kardo koi... plz 】π_π

Answer»

hi buddy ✌️✌️

¥●UR @Π$ ¡$ ⤵️⤵️⤵️

The palace museum in Beijing , China is KNOW as FORBIDDEN City .

HOPE u like

follow me ❣️

Discussion

35.	What is the examples of the formula sin(a+b) = sina×cosb+cosa×sinb
Answer» Here are two for the PRICE of one (using Euler's formula): COS(A+B)+ISIN(A+B)≡ei(A+B)≡eiA×eiB cos⁡(A+B)+isin⁡(A+B)≡ei(A+B)≡eiA×eiB ≡[cos(A)+isin(A)][cos(B)+isin(B)] ≡[cos⁡(A)+isin⁡(A)][cos⁡(B)+isin⁡(B)] ≡[cos(A)cos(B)−sin(A)sin(B)]+i[sin(A)cos(B)+cos(A)sin(B)] ≡[cos⁡(A)cos⁡(B)−sin⁡(A)sin⁡(B)]+i[sin⁡(A)cos⁡(B)+cos⁡(A)sin⁡(B)] Now equate imaginary parts to give the RESULT for sin(A+B)sin⁡(A+B) (and, if you want, equate real parts to give the result for cos(A+B)cos⁡(A+B)).

35.

What is the examples of the formula sin(a+b) = sina×cosb+cosa×sinb

Answer»

Here are two for the PRICE of one (using Euler's formula):

COS(A+B)+ISIN(A+B)≡ei(A+B)≡eiA×eiB

cos⁡(A+B)+isin⁡(A+B)≡ei(A+B)≡eiA×eiB

≡[cos(A)+isin(A)][cos(B)+isin(B)]

≡[cos⁡(A)+isin⁡(A)][cos⁡(B)+isin⁡(B)]

≡[cos(A)cos(B)−sin(A)sin(B)]+i[sin(A)cos(B)+cos(A)sin(B)]

≡[cos⁡(A)cos⁡(B)−sin⁡(A)sin⁡(B)]+i[sin⁡(A)cos⁡(B)+cos⁡(A)sin⁡(B)]

Now equate imaginary parts to give the RESULT for sin(A+B)sin⁡(A+B) (and, if you want, equate real parts to give the result for cos(A+B)cos⁡(A+B)).

Discussion

36.	What number should be subtracted from 3 to get 1 /2 .
Answer» Answer: LET the unknown number be x according to the question 3-x=1/2 3-1/2=x 6-1/2=x x=5/2 HOPE it helps U mate Mark as brainliest

36.

What number should be subtracted from 3 to get 1 /2 .

Answer»

Answer:

LET the unknown number be x

according to the question

3-x=1/2

3-1/2=x

6-1/2=x

x=5/2 HOPE it helps U mate

Mark as brainliest

Discussion

37.	The area of a square field is 1500625square meter ? find its side
Answer» Step-by-step EXPLANATION: the SIDE of a SQUARE FIELD a = 1225m

37.

The area of a square field is 1500625square meter ? find its side

Answer»

Step-by-step EXPLANATION:

the SIDE of a SQUARE FIELD a = 1225m

Discussion

38.	Pairs of integers whose sum minus 11
Answer» 1. -5-6 2. -7-4 3. -15+4 4. -17+6 5. -8-3 , ETC.

38.

Pairs of integers whose sum minus 11

Answer»

1. -5-6

2. -7-4

3. -15+4

4. -17+6

5. -8-3 , ETC.

Discussion

39.	Read these numbers 527864
Answer» Answer: FIVE LAKH twenty seven THOUSANDS EIGHT hundred sixty FOUR

39.

Read these numbers 527864

Answer»

Answer:

FIVE LAKH twenty seven THOUSANDS EIGHT hundred sixty FOUR

Discussion

40.	Draw the gaph of y=-1 y=3and 4x-y=5also fibd the area of quadirlateral formed by the line and the yaxis
Answer» ANSWER: LET y=-1 4x-(-1)=5 4x+1=5 4x=5-1 4x=4 x=4/4 x=0 let y=3 4x-3=5 4x=5+3 4x=8 x=8/4 x=2

40.

Draw the gaph of y=-1 y=3and 4x-y=5also fibd the area of quadirlateral formed by the line and the yaxis

Answer»

ANSWER:

LET y=-1

4x-(-1)=5

4x+1=5

4x=5-1

4x=4

x=4/4

x=0

let y=3

4x-3=5

4x=5+3

4x=8

x=8/4

x=2

Discussion

41.	Apples are sold at ₹15 3/4 per kg.Find the cost of 6 1/2 kg of apples.
Answer» Answer: The COST of 61/2kg APPLES is 610. Hii BRO *PLEASE* *MAKE* ME *BRAIN* *LIST*.

41.

Apples are sold at ₹15 3/4 per kg.Find the cost of 6 1/2 kg of apples.

Answer»

Answer:

The COST of 61/2kg APPLES is 610.

Hii BRO

PLEASE MAKE ME BRAIN LIST.

Discussion

42.	Simplify 2+3 root 6/3+root6
Answer» ANSWER: 2+9 6/3+36 11/39 11/39 is an answer of this QUESTION

42.

Simplify 2+3 root 6/3+root6

Answer»

ANSWER:

2+9 6/3+36

11/39

11/39 is

an answer of this QUESTION

Discussion

43.	A B A- 3 4 7-----------C 8 8
Answer» ANSWER: A=5,B=3 and C=1 hope this HELPS you

43.

A B A- 3 4 7-----------C 8 8

Answer»

ANSWER:

A=5,B=3 and C=1

hope this HELPS you

Discussion

44.	Two sides of parallelogram are in the ratio 3:4 if its perimeter is 42 cm find the length of its sides
Answer» ANSWER: LET RATIO is x so,3x+3x+4x+4x=42 14x=42 x=42÷14 x=3

44.

Two sides of parallelogram are in the ratio 3:4 if its perimeter is 42 cm find the length of its sides

Answer»

ANSWER:

LET RATIO is x

so,3x+3x+4x+4x=42

14x=42

x=42÷14

x=3

Discussion

45.	If ax - 4y = -6 has a slope of -3/2. What is the value of a?
Answer» Answer: A=-6 Step-by-step EXPLANATION: Y=mx+C is STRAIGHT line EQUATION In which m= slope C= y INTERCEPT

45.

If ax - 4y = -6 has a slope of -3/2. What is the value of a?

Answer»

Answer:

A=-6

Step-by-step EXPLANATION:

Y=mx+C is STRAIGHT line EQUATION

In which m= slope

C= y INTERCEPT

Discussion

46.	Starting from (-5)×4, find (-5)×(-6)
Answer» ANSWER: -5×4=-20 And -5×-6=+30

46.

Starting from (-5)×4, find (-5)×(-6)

Answer»

ANSWER:

-5×4=-20

And -5×-6=+30

Discussion

47.	Find the wrong term- 200,165,148,118,104,77,68
Answer» NAHI PATA nahi pata nahi pata nahi pata nahi pata NAHIN pata nahin Pata pata nahin pata YAAR

Discussion

48.	How to find a rational number between two irrational numbers?
Answer» HOLA!! ●Find the VALUE of roots. ●Obtain RESPECTIVE values. HOPE this HELPS you ___!!

48.

How to find a rational number between two irrational numbers?

Answer»

HOLA!!

●Find the VALUE of roots.

●Obtain RESPECTIVE values.

HOPE this HELPS you ___!!

Discussion

49.	If a = 23 x 34 and b = 25 x 32, then what is the value of a x b?
Answer» ANSWER: a=782 and b=800 so, 782 into 800 =625600

49.

If a = 23 x 34 and b = 25 x 32, then what is the value of a x b?

Answer»

ANSWER:

a=782 and b=800

so, 782 into 800

=625600

Discussion

50.	If x-2y=3; 3x+ky=1 has unique solution then find k
Answer» ANSWER: FOLLOW me PLEASE please please

50.

If x-2y=3; 3x+ky=1 has unique solution then find k

Answer»

ANSWER:

FOLLOW me

PLEASE please please

Discussion

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