332354 + Interview Questions in Secondary School in Math

1.	Best Answer marked by brainlist
Answer» Answer: plz mark me BRAINLIEST and FOLLOW me dude

1.

Best Answer marked by brainlist

Answer»

Answer:

plz mark me BRAINLIEST and FOLLOW me dude

Discussion

2.	92)(C) इक्तदारी(D) जमीदारीएक व्यक्ति को ₹160 प्रति किलोग्राम की दर से टाइप A की चायबेचने पर 20% की हानि होती है। उसी व्यक्ति को ₹400 प्रतिकिलोग्राम की दर से टाइप B की चाय बेचने पर 20% का लाभ होताहै। ₹300 प्रति किलोग्राम की दर से चाय पर 25% का लाभ पानके लिए इन दोनों प्रकार की चाय पत्तियाँ A और B को किस अनुपातमें मिलाकर बेचना होगा?(A) 4:5726
Answer» Given : एक व्यक्ति को ₹ 160 प्रति किलोग्राम की दर से टाइप A की चाय बेचने पर 20% की हानि होती है। उसी व्यक्ति को ₹ 400 प्रति किलोग्राम की दर से टाइप B की चाय बेचने पर 20% का लाभ होता है। To Find : 300 प्रति किलोग्राम की दर से चाय पर 25% का लाभ पाने के लिए इन दोनों प्रकार की चाय पत्तियो A और B को किस अनुपात में मिलाकर बेचना होगा Solution: चाय A = 1 kg चाय B = K kg ₹ 160 प्रति किलोग्राम की दर से टाइप A की चाय बेचने पर 20% की हानि होती है। => चाय A = ₹ 200 प्रति किलोग्राम ₹ 400 प्रति किलोग्राम की दर से टाइप B की चाय बेचने पर 20% का लाभ होता है। => चाय B = ₹ 320 प्रति किलोग्राम CP = 200 + 320K ₹ 25% का लाभ = (25/100) 200 + 320K = 50 + 80K SP = 300(1 + K) = 300 + 300K 50 + 80K = 300 + 300K - (200 + 320K) => 50 + 80K = 100 - 20K => 100K = 50 => K = 1/2 1 : 1/2 = 2 : 1 => A : B = 2 : 1 चाय पत्तियो A और B अनुपात = 2 : 1 Learn More: Three types of WHEAT of rs. 1.27 rs. 1.29 and rs. 1.32 per kg are ... brainly.in/question/9290731 Two types of tea, A and B, are MIXED and then sold at Rs. 40 per kg ... brainly.in/question/12438647 a grocer bought and mixed 3kg of tea powder at RS220 per kg with ... brainly.in/question/7674340

2.

92)(C) इक्तदारी(D) जमीदारीएक व्यक्ति को ₹160 प्रति किलोग्राम की दर से टाइप A की चायबेचने पर 20% की हानि होती है। उसी व्यक्ति को ₹400 प्रतिकिलोग्राम की दर से टाइप B की चाय बेचने पर 20% का लाभ होताहै। ₹300 प्रति किलोग्राम की दर से चाय पर 25% का लाभ पानके लिए इन दोनों प्रकार की चाय पत्तियाँ A और B को किस अनुपातमें मिलाकर बेचना होगा?(A) 4:5726

Answer»

Given : एक व्यक्ति को ₹ 160 प्रति किलोग्राम की दर से टाइप A की चाय बेचने पर 20% की हानि होती है।

उसी व्यक्ति को ₹ 400 प्रति किलोग्राम की दर से टाइप B की चाय बेचने पर 20% का लाभ होता है।

To Find : 300 प्रति किलोग्राम की दर से चाय पर 25% का लाभ पाने के लिए इन दोनों प्रकार की चाय पत्तियो A और B को किस अनुपात में मिलाकर बेचना होगा

Solution:

चाय A = 1 kg

चाय B = K kg

₹ 160 प्रति किलोग्राम की दर से टाइप A की चाय बेचने पर 20% की हानि होती है।

=> चाय A = ₹ 200 प्रति किलोग्राम

₹ 400 प्रति किलोग्राम की दर से टाइप B की चाय बेचने पर 20% का लाभ होता है।

=> चाय B = ₹ 320 प्रति किलोग्राम

CP = 200 + 320K ₹

25% का लाभ = (25/100) 200 + 320K = 50 + 80K

SP = 300(1 + K) = 300 + 300K

50 + 80K = 300 + 300K - (200 + 320K)

=> 50 + 80K = 100 - 20K

=> 100K = 50

=> K = 1/2

1 : 1/2

= 2 : 1

=> A : B = 2 : 1

चाय पत्तियो A और B अनुपात = 2 : 1

Learn More:

Three types of WHEAT of rs. 1.27 rs. 1.29 and rs. 1.32 per kg are ...

brainly.in/question/9290731

Two types of tea, A and B, are MIXED and then sold at Rs. 40 per kg ...

brainly.in/question/12438647

a grocer bought and mixed 3kg of tea powder at RS220 per kg with ...

brainly.in/question/7674340

Discussion

3.	The value of x is.......
Answer» ANSWER: 25 is the CORRECT answer. please MARK as BRAINLIST answer and FOLLOW me...

3.

The value of x is.......

Answer»

ANSWER:

25 is the CORRECT answer.

please MARK as BRAINLIST answer and FOLLOW me...

Discussion

4.	A positive number is 5 times another number. If 21 is added to both the numbers,then one of the new numbers becomes twice the other new number. What are thenumbers?
Answer» $\huge \boxed{ \fcolorbox{cyan}{grey}{Answer : }}$ $\sf \green{35}$ ____________________________ QUESTION: A POSITIVE number is 5 times another number. If 21 is added to both the numbers,then one of the new numbers becomes twice the other new number. What are the numbers? _______________________________ step to step EXPLANATION: LET the smallest number be x bigger number be 5x According to the question 21 is added to both number is 5x+21 so it will come 2 × (x+21) $\bf \underline \red{probelm \: solve}$ $\tt \green{5x + 21 = 2x + 42}$ $\tt \green{5x - 2x = 42 - 21}$ $\tt \green{3x = 21}$ $\tt \green{x = \frac{21}{3}}$ $\tt \green{x = 7}$ then positive number = 5×7=35 finally answer is 35 $\bf{ \huge{ \boxed{ \blue{ \tt{35 \: }}}}}$

4.

A positive number is 5 times another number. If 21 is added to both the numbers,then one of the new numbers becomes twice the other new number. What are thenumbers?

Answer»

$\huge \boxed{ \fcolorbox{cyan}{grey}{Answer : }}$

$\sf \green{35}$

____________________________

QUESTION:

A POSITIVE number is 5 times another number. If 21 is added to both the numbers,then one of the new numbers becomes twice the other new number. What are the numbers?

_______________________________

step to step EXPLANATION:

LET the smallest number be x
bigger number be 5x

According to the question 21 is added to both number is 5x+21

so it will come 2 × (x+21)

$\bf \underline \red{probelm \: solve}$

$\tt \green{5x + 21 = 2x + 42}$

$\tt \green{5x - 2x = 42 - 21}$

$\tt \green{3x = 21}$

$\tt \green{x = \frac{21}{3}}$

$\tt \green{x = 7}$

then positive number = 5×7=35

finally answer is 35

$\bf{ \huge{ \boxed{ \blue{ \tt{35 \: }}}}}$

Discussion

5.	The iq of students in a certain college is assumed to be normally distributed with mean 100 and variance 25. If 3 students are selected at random, find the probability that all of them have iq between 102 and 110. (Given A(0.4)=0.4772 and A(2)=0.1554)
Answer» Given : The iq of students in a CERTAIN COLLEGE is assumed to be normally distributed with mean 100 and variance 25 . 3 students are selected at random To FIND : probability that all of them have iq between 102 and 110. Step-by-step explanation: mean 100 Variance = 25 Variance = (Standard deviation)² => (Standard deviation)² = 25 => Standard deviation = 5 Mean = 100 SD = 5 Z score = ( Value - Mean)/SD Z = (102 - 100)/5 => Z = 0.4 A(0.4)=0.4772 => 47.72 % data lies above 102 Z = (110 - 100)/5 => Z = 2 A(2)=0.1554 => 15.54 % data lies above 110 Data lies in between 102 & 110 = 47.72 - 15.54 = 32.18 % 0.3218 is the probability that a students selected have score between 102 & 110 now probability all three students selected have score between 102 & 110 = (0.3218)³ = 0.033 0.033 is the probability that all 3 students have score between 102 & 110 Learn more: Assume that adults have iq scores that are normally distributed with ... brainly.in/question/11133397 The mean length of mature whiting is 35 cm and the standard ... brainly.in/question/13450142

5.

The iq of students in a certain college is assumed to be normally distributed with mean 100 and variance 25. If 3 students are selected at random, find the probability that all of them have iq between 102 and 110. (Given A(0.4)=0.4772 and A(2)=0.1554)

Answer»

Given : The iq of students in a CERTAIN COLLEGE is assumed to be normally distributed with mean 100 and variance 25 . 3 students are selected at random

To FIND : probability that all of them have iq between 102 and 110.

Step-by-step explanation:

mean 100

Variance = 25

Variance = (Standard deviation)²

=> (Standard deviation)² = 25

=> Standard deviation = 5

Mean = 100

SD = 5

Z score = ( Value - Mean)/SD

Z = (102 - 100)/5

=> Z = 0.4

A(0.4)=0.4772 => 47.72 % data lies above 102

Z = (110 - 100)/5

=> Z = 2

A(2)=0.1554 => 15.54 % data lies above 110

Data lies in between 102 & 110

= 47.72 - 15.54

= 32.18 %

0.3218 is the probability that a students selected have score between 102 & 110

now probability all three students selected have score between 102 & 110

= (0.3218)³

= 0.033

0.033 is the probability that all 3 students have score between 102 & 110

Learn more:

Assume that adults have iq scores that are normally distributed with ...

brainly.in/question/11133397

The mean length of mature whiting is 35 cm and the standard ...

brainly.in/question/13450142

Discussion

6.	find the quadratic polynomial the sum of whose zeros is 0 and their product is -1 hence, find the zeros of the polynomial
Answer» AnswEr:- Quadratic POLYNOMIAL = x² - 1 ZEROES of polynomial = -1 & 1 $\rule{200}{1}$ Explanation:- Let the zeroes of polynomial be α & β Given:- α + β = 0 αβ = -1 We know the standard form of a quadratic polynomial:- $\star\: \boxed{\boxed{\sf\blue{x^2 - (Sum \: of \: zeros)x + Product\: of\: zeros }}}$ Here, ⇒ Polynomial = x² - (0)x + (-1) ⇒ Polynomial = x² - 0x - 1 ⇒ Polynomial = x² - 1 Therefore, $\therefore\underline{\textsf{Quadratic polynomial = {\textbf{x$^2$- 1}}}}$ $\rule{200}{1}$ We got the quadratic polynomial as x² - 1 Now we can FIND the zeros of polynomial by factorization method:- ⇒ x² - 1 = 0 [We know, a² - B² = (a + b)(a - b) ] ⇒ (x + 1)(x - 1) = 0 ⇒ x = -1 or x = 1 Therefore, $\therefore\underline{\textsf{Zeros of polynomial = {\textbf{-1 \& 1 }}}}$

6.

find the quadratic polynomial the sum of whose zeros is 0 and their product is -1 hence, find the zeros of the polynomial

Answer»

AnswEr:-

Quadratic POLYNOMIAL = x² - 1

ZEROES of polynomial = -1 & 1

$\rule{200}{1}$

Explanation:-

Let the zeroes of polynomial be α & β

Given:-

α + β = 0
αβ = -1

We know the standard form of a quadratic polynomial:-

$\star\: \boxed{\boxed{\sf\blue{x^2 - (Sum \: of \: zeros)x + Product\: of\: zeros }}}$

Here,

⇒ Polynomial = x² - (0)x + (-1)

⇒ Polynomial = x² - 0x - 1

⇒ Polynomial = x² - 1

Therefore,

$\therefore\underline{\textsf{Quadratic polynomial = {\textbf{x$^2$- 1}}}}$

$\rule{200}{1}$

We got the quadratic polynomial as x² - 1

Now we can FIND the zeros of polynomial by factorization method:-

⇒ x² - 1 = 0

[We know, a² - B² = (a + b)(a - b) ]

⇒ (x + 1)(x - 1) = 0

⇒ x = -1 or x = 1

Therefore,

$\therefore\underline{\textsf{Zeros of polynomial = {\textbf{-1 \& 1 }}}}$

Discussion

7.	Simply the following (-1)×225
Answer» ANSWER:-225 Step-by-step EXPLANATION:

7.

Simply the following (-1)×225

Answer»

ANSWER:-225

Step-by-step EXPLANATION:

Discussion

8.	Anyone who study in class 8 who tell me about rational number with its kind
Answer» ANSWER:beisj1nebxbzo Step-by-step EXPLANATION:

8.

Anyone who study in class 8 who tell me about rational number with its kind

Answer»

ANSWER:beisj1nebxbzo

Step-by-step EXPLANATION:

Discussion

9.	A person in room number 13 had recovered from corona he wanted to say goodibye to all patiens but the doctors told him if he said gooibye to the same patient twice he will be infected by corona againWhat would his path to be get out of the building without getting infected
Answer» Answer: He has to suit up with PPE kits, to PREVENT from getting cororna.

9.

A person in room number 13 had recovered from corona he wanted to say goodibye to all patiens but the doctors told him if he said gooibye to the same patient twice he will be infected by corona againWhat would his path to be get out of the building without getting infected

Answer»

Answer:

He has to suit up with PPE kits, to PREVENT from getting cororna.

Discussion

10.	- (-12) = ( x ) = -6/5
Answer» put x is EQUAL to 12 12=-6/5 12×-5/6=0 2×-5=0 -10 is not equal to zero so , this EQUATION is wrong *please* *mark* *BRAINIEST*

10.

- (-12) = ( x ) = -6/5

Answer»

put x is EQUAL to 12

12=-6/5

12×-5/6=0

2×-5=0

-10 is not equal to zero so , this EQUATION is wrong

please mark BRAINIEST

Discussion

11.	Write rooster and set builder form of primes less than 20
Answer» I HOPE it is HELPFUL to you

11.

Write rooster and set builder form of primes less than 20

Answer»

I HOPE it is HELPFUL to you

Discussion

12.	Find a quadratic polynomial the sum of whose roots is √2 and their product is 1/3
Answer» ANSWER: hey mate here is your answer plz mark it as brainliest. Step-by-step explanation: hope it will HELP u plz thank this question #stay HOME , stay SAFE

12.

Find a quadratic polynomial the sum of whose roots is √2 and their product is 1/3

Answer»

ANSWER:

hey mate here is your answer

plz mark it as brainliest.

Step-by-step explanation:

hope it will HELP u

plz thank this question

#stay HOME , stay SAFE

Discussion

13.	Plz help me integrate this..thank u
Answer» ANSWER: y=4cosx^2+secx^2+4cosx×secx Step-by-step explanation: by USING identity ( a+b)^2=a^2+2ab+b^2. y=(2COSX + SEX)^2 =. (2cosx)^2+2×2cosx × secx × (secx)^2. y= 4cosx^2 + 4cosx×secx + secx^2

13.

Plz help me integrate this..thank u

Answer»

ANSWER:

y=4cosx^2+secx^2+4cosx×secx

Step-by-step explanation:

by USING identity ( a+b)^2=a^2+2ab+b^2. y=(2COSX + SEX)^2 =. (2cosx)^2+2×2cosx × secx × (secx)^2. y= 4cosx^2 + 4cosx×secx + secx^2

Discussion

14.	For all positive integral value of n ,3,2n- 2 n + 1 is divisible by
Answer» ❤️Hyy Dude❤️ HOPE it's HELPS you Plz marked in BRAINLEST ANSWER

14.

For all positive integral value of n ,3,2n- 2 n + 1 is divisible by

Answer»

❤️Hyy Dude❤️

HOPE it's HELPS you

Plz marked in BRAINLEST ANSWER

Discussion

15.	1. Expand : (i) (2x + 3)^4
Answer» Step-by-step EXPLANATION: this is ANSWER of your QUESTION

15.

1. Expand : (i) (2x + 3)^4

Answer»

Step-by-step EXPLANATION:

this is ANSWER of your QUESTION

Discussion

16.	Plz help me integrate this...thank u
Answer» ANSWER: Step-by-step EXPLANATION: ( RATE if HELPFUL ☺)

16.

Plz help me integrate this...thank u

Answer»

ANSWER:

Step-by-step EXPLANATION:

( RATE if HELPFUL ☺)

Discussion

17.	5-1 √5+1)/Simplify:
Answer» the ANSWER is √32 Step-by-step EXPLANATION: is it OK

17.

5-1 √5+1)/Simplify:

Answer»

the ANSWER is √32

Step-by-step EXPLANATION:

is it OK

Discussion

18.	The sum of two numbers is -4/3 if one of the numbers is -5 find other number
Answer» ANSWER: LET the NUMBER be 'X' -5+x = -4/3 therefore x = -4/3+5 = 11/3 therefore the answer is ✔️✔️✔️✔️11/3✔️✔️✔️✔️

18.

The sum of two numbers is -4/3 if one of the numbers is -5 find other number

Answer»

ANSWER:

LET the NUMBER be 'X'

-5+x = -4/3

therefore x = -4/3+5

= 11/3

therefore the answer is

✔️✔️✔️✔️11/3✔️✔️✔️✔️

Discussion

19.	The surface of the sphere is 4cm .find its diameter?
Answer» ANSWER: DIAMETER is 4 only I HOPE it is HELPFUL to you

19.

The surface of the sphere is 4cm .find its diameter?

Answer»

ANSWER:

DIAMETER is 4 only

I HOPE it is HELPFUL to you

Discussion

20.	Sin A = a/b then cos A
Answer» COSA = ROOT a^2-b^2/b

Discussion

21.	Solve graphicallyQ1) x + y = 5 & x +2 y = 5Q2) 2x - y = 2 & 4 x – y = 4
Answer» ANSWER: 1) x+y=5 so if we ADD x and y the answer MUST be 5 so we can take x=2 and y=3 2) x+2y=5 so here if we add x and twice of y we must get 5 so x=1 and y= 2 so 2y=4

21.

Solve graphicallyQ1) x + y = 5 & x +2 y = 5Q2) 2x - y = 2 & 4 x – y = 4

Answer»

ANSWER:

1) x+y=5

so if we ADD x and y the answer MUST be 5

so we can take

x=2 and y=3

2) x+2y=5

so here if we add x and twice of y we must get 5

so x=1 and y= 2

so 2y=4

Discussion

22.	1÷x-1÷x-2=3(X not=0,2
Answer» $Solution$ $= > \frac{1}{x} - \frac{1}{x - 2} = 3 \\ \\ = > \frac{x - 2 - x}{ {x}^{2} - 2x } = 3 \\ \\ = > - 2 = 3 {x}^{2} - 6x \\ \\ = > 3 {x}^{2} - 6x + 2 = 0 \\ \\ \\ \\$ $D = {b}^{2} - 4ac$ $D = { (- 6)}^{2} - 4(3)(2) \\ \\ \: \: \: \: \: = 36 - 24 \\ \\ \: \: \: \: \: = 12 \\ \\ \: \: \: \: \: = 2 \sqrt{3}$ $= > \alpha = \frac{ - b \: + \sqrt{ {b}^{2} - 4ac } }{2a} \\ \\ \: \: \: \: \: \: \: \: \: \: \: \: = \frac{6 + 2 \sqrt{3} }{6} \\ \\ \: \: \: \: \: \: \: \: \: \: \: \: = \frac{3 + \sqrt{3} }{3}$ $= > \beta = \frac{ - b \: - \sqrt{ {b}^{2} - 4ac } }{2a} \\ \\ \: \: \: \: \: \: \: \: \: \: \: \: = \frac{6 - 2 \sqrt{3} }{6} \\ \\ \: \: \: \: \: \: \: \: \: \: \: \: = \frac{3 - \sqrt{3} }{3}$ $Hope\: you \:got\: it$

22.

1÷x-1÷x-2=3(X not=0,2

Answer»

$Solution$

$= > \frac{1}{x} - \frac{1}{x - 2} = 3 \\ \\ = > \frac{x - 2 - x}{ {x}^{2} - 2x } = 3 \\ \\ = > - 2 = 3 {x}^{2} - 6x \\ \\ = > 3 {x}^{2} - 6x + 2 = 0 \\ \\ \\ \\$

$D = {b}^{2} - 4ac$

$D = { (- 6)}^{2} - 4(3)(2) \\ \\ \: \: \: \: \: = 36 - 24 \\ \\ \: \: \: \: \: = 12 \\ \\ \: \: \: \: \: = 2 \sqrt{3}$

$= > \alpha = \frac{ - b \: + \sqrt{ {b}^{2} - 4ac } }{2a} \\ \\ \: \: \: \: \: \: \: \: \: \: \: \: = \frac{6 + 2 \sqrt{3} }{6} \\ \\ \: \: \: \: \: \: \: \: \: \: \: \: = \frac{3 + \sqrt{3} }{3}$

$= > \beta = \frac{ - b \: - \sqrt{ {b}^{2} - 4ac } }{2a} \\ \\ \: \: \: \: \: \: \: \: \: \: \: \: = \frac{6 - 2 \sqrt{3} }{6} \\ \\ \: \: \: \: \: \: \: \: \: \: \: \: = \frac{3 - \sqrt{3} }{3}$

$Hope\: you \:got\: it$

Discussion

23.	Find a quadratic polynomial the sum and product of whose zeroes are - 5 and 6
Answer» Answer: HEY DUDE ..here is *your* *SOLUTION....please MARK* *BRAINLIEST*

23.

Find a quadratic polynomial the sum and product of whose zeroes are - 5 and 6

Answer»

Answer:

HEY DUDE

..here is your SOLUTION....please MARK BRAINLIEST

Discussion

24.	5. Determine the constant term in Fourier series for thefunction f(x)=x square, in 0
Answer» Step-by-step EXPLANATION: qtgwwTw2552twffdy28shdhushFeh

24.

5. Determine the constant term in Fourier series for thefunction f(x)=x square, in 0

Answer»

Step-by-step EXPLANATION:

qtgwwTw2552twffdy28shdhushFeh

Discussion

25.	what number should be added to 94,24,100 and 96 so that the resulting number are in continued proportion
Answer» ANSWER: the NUMBER RESULT is 312

25.

what number should be added to 94,24,100 and 96 so that the resulting number are in continued proportion

Answer»

ANSWER:

the NUMBER RESULT is 312

Discussion

26.	Find the missing term
Answer» ANSWER: 9 is the CORRECT answer

26.

Find the missing term

Answer»

ANSWER:

9 is the CORRECT answer

Discussion

27.	Solve kaise karna is question ko 3×(_1)
Answer» ANSWER: -3 answer ho JAE GA re baba Step-by-step EXPLANATION:

27.

Solve kaise karna is question ko 3×(_1)

Answer»

ANSWER:

-3 answer ho JAE GA re baba

Step-by-step EXPLANATION:

Discussion

28.	Please give answer correct please please give all questions answer please
Answer» ANSWER: i HOPE you UNDERSTOOD.

28.

Please give answer correct please please give all questions answer please

Answer»

ANSWER:

i HOPE you UNDERSTOOD.

Discussion

29.	29. The weight (in kg) of 30 students of a class are:39, 38, 36, 38, 40, 42, 43, 44, 33, 33, 31, 45, 46, 38, 37, 31, 30, 39, 41, 41, 46,36,35,34, 39, 43, 32, 37, 29, 26.Prepare a frequency distribution table using tally marks. Draw a histogram.
Answer» Answer: Mean 37.4 Standard DEVIATION (s) 5.2562 Skewness -0.20846 Kurtosis -0.61486 Lowest Score 26 Highest Score 46 Distribution Range 20 Total Number of Scores 30 Number of DISTINCT Scores 19 Lowest Class VALUE 26 Highest Class Value 49 Number of CLASSES 6 Class Range 4 Step-by-step explanation: That's my histogram.

29.

29. The weight (in kg) of 30 students of a class are:39, 38, 36, 38, 40, 42, 43, 44, 33, 33, 31, 45, 46, 38, 37, 31, 30, 39, 41, 41, 46,36,35,34, 39, 43, 32, 37, 29, 26.Prepare a frequency distribution table using tally marks. Draw a histogram.

Answer»

Answer:

Mean 37.4

Standard DEVIATION (s) 5.2562

Skewness -0.20846

Kurtosis -0.61486

Lowest Score 26

Highest Score 46

Distribution Range 20

Total Number of Scores 30

Number of DISTINCT Scores 19

Lowest Class VALUE 26

Highest Class Value 49

Number of CLASSES 6

Class Range 4

Step-by-step explanation:

That's my histogram.

Discussion

30.	Please solve this question : 18 X 6 +18X 7=18 X[6+_____]
Answer» ANSWER: he ag ridiculously of HIGHLY is strictly Step-by-step explanation: Mark as BRAINLIEST......

30.

Please solve this question : 18 X 6 +18X 7=18 X[6+_____]

Answer»

ANSWER:

he ag ridiculously of HIGHLY is strictly

Step-by-step explanation:

Mark as BRAINLIEST......

Discussion

31.	Solve cos^2(70°)..............
Answer» ANSWER: NICE questinon but your QUESTION is not COMPLETE

31.

Solve cos^2(70°)..............

Answer»

ANSWER:

NICE questinon

but your QUESTION is not COMPLETE

Discussion

32.	the height of the parallelogram is one third of its base if the area of the parallelogram 192cm² find its height and base
Answer» Step-by-step EXPLANATION: suppose that base = x then, HEIGHT= 1/3 AREA of parallelogram = base × height 1/3× x= 192 x= 1/3× 192= 64( SQUARE root of 64 is 8) base= 8 height= 8×3= 24

32.

the height of the parallelogram is one third of its base if the area of the parallelogram 192cm² find its height and base

Answer»

Step-by-step EXPLANATION:

suppose that base = x

then, HEIGHT= 1/3

AREA of parallelogram =

base × height

1/3× x= 192

x= 1/3× 192= 64( SQUARE root of 64 is 8)

base= 8

height= 8×3= 24

Discussion

33.	Two bags contain 3 white, 2 black and 2 white, 4 black balls respectively. A ball is chosen at random then the probability of its being black is-
Answer» ANSWER: the PROBABILITY of BLACK BALL is 2/11

33.

Two bags contain 3 white, 2 black and 2 white, 4 black balls respectively. A ball is chosen at random then the probability of its being black is-

Answer»

ANSWER:

the PROBABILITY of BLACK BALL is 2/11

Discussion

34.	Solve:1. 8y - 4y = 203. 5y + 8 = 8y - 185. 8 - 7x = 13x + 87. 9 + m = 6m + 8 - m9. 19x + 13 - 12x + 3 = 2311. 6 - 5m - 1 + 3m = 013. 6(x + 4) = 3615. 4(x - 2) = 1217. 7(x - 2) = 2(2x - 4)19. 21 - 3(b - 7) = b + 20
Answer» Answer: 1.8y-4y=20 4y=20 y=20/4 y =5

34.

Solve:1. 8y - 4y = 203. 5y + 8 = 8y - 185. 8 - 7x = 13x + 87. 9 + m = 6m + 8 - m9. 19x + 13 - 12x + 3 = 2311. 6 - 5m - 1 + 3m = 013. 6(x + 4) = 3615. 4(x - 2) = 1217. 7(x - 2) = 2(2x - 4)19. 21 - 3(b - 7) = b + 20

Answer»

Answer:

1.8y-4y=20

4y=20

y=20/4

y =5

Discussion

35.	If x is equal to root 13 + 2 root 3 find the value of x - 1 by x
Answer» ANSWER: X=√13+2√3 = √13+√12 = 3.61+3.46 = 7.07 x-1/x = 7.07-(1/7.07) = (49.98-1)/7.07 = 48.98/7.07 = 6.93

35.

If x is equal to root 13 + 2 root 3 find the value of x - 1 by x

Answer»

ANSWER:

X=√13+2√3

= √13+√12

= 3.61+3.46

= 7.07

x-1/x

= 7.07-(1/7.07)

= (49.98-1)/7.07

= 48.98/7.07

= 6.93

Discussion

36.	Find A^-1 check the attachment
Answer» means,use the formula "ax2+bx+c=0,. then you can GET by substituting the ZEROS. then you can find the value of A and can find the value of A POWER -1

36.

Find A^-1 check the attachment

Answer»

means,use the formula "ax2+bx+c=0,. then you can GET by substituting the ZEROS. then you can find the value of A and can find the value of A POWER -1

Discussion

37.	Find 3-rational number between -3/2 and5/3.
Answer» Step-by-step explanation: find the ATTACHED PHOTO for your ANSWER..... hope it hepls......

37.

Find 3-rational number between -3/2 and5/3.

Answer»

Step-by-step explanation:

find the ATTACHED PHOTO for your ANSWER.....

hope it hepls......

Discussion

38.	The sum of the digits of a two digit number is 9 . Also nine this number is twice the number obtained by reversing the order of the digits. Find the number
Answer» HERE'S YOUR ANSWER LET THE DIGIT AT UNITS PLACE BE Y AND THE DIGIT AT TENS PLACE BE X No.= 10X+Y No. after reversing the digits = 10Y+X ACCORDING TO THE QUESTION X+Y=9 (EQ.1) X=9-Y (EQ.3) 9(10X+Y)=2(10Y+X) 90X+9Y=20Y+2X 88X-11Y=0 (EQ.2) SUBSTITUTING X IN (EQ.2) 88(9-Y)-11Y=0 792-88Y=11Y 792=99Y Y=792/99=8 SUBSTITUTING Y IN (EQ.3) X=9-Y X=9-8 X=1 NOW NO.= 10X+Y=10(1)+8=18 HOPE IT HELPS

38.

The sum of the digits of a two digit number is 9 . Also nine this number is twice the number obtained by reversing the order of the digits. Find the number

Answer»

HERE'S YOUR ANSWER

LET THE DIGIT AT UNITS PLACE BE Y AND

THE DIGIT AT TENS PLACE BE X

No.= 10X+Y

No. after reversing the digits = 10Y+X

ACCORDING TO THE QUESTION

X+Y=9 (EQ.1)

X=9-Y (EQ.3)

9(10X+Y)=2(10Y+X)

90X+9Y=20Y+2X

88X-11Y=0 (EQ.2)

SUBSTITUTING X IN (EQ.2)

88(9-Y)-11Y=0

792-88Y=11Y

792=99Y

Y=792/99=8

SUBSTITUTING Y IN (EQ.3)

X=9-Y

X=9-8

X=1

NOW NO.= 10X+Y=10(1)+8=18

HOPE IT HELPS

Discussion

39.	find the quadratic polynomial whose zeros are 1 and -3 verify the relation between the coefficient and zeros
Answer» GIVEN : The zeroes of the quadratic equation are 1 and -3 TO VERIFY: The relation between the coefficient and zeroes SOLUTION : Given that the zeroes of the quadratic equation are 1 and -3 Let $\alpha=1$ and $\beta=-3$ be the zeroes of the given quadratic equation. The quadratic equation can be written with the given zeroes is given by: $x^2-(sum of the zeroes)x+product of the zeroes=0$ $sum of the zeroes=\alpha+\beta=1-3$ $=-2$ $sum of the zeroes=\alpha+\beta=-2$ $product of the zeroes=\alpha\times \beta=1\times (-3)$ $=-3$ $product of the zeroes=\alpha\times \beta=-3$ Then the quadratic equation can be written as $x^2-(-2)x+(-3)=0$ $x^2+2x-3=0$ it is of the form $ax^2+bx+c=0$ COMPARING the 2 EQUATIONS we GET the coefficients a=1 , b=2 and c=-3 The relation between the coefficient and zeroes is $sum of the zeroes=\frac{-b}{a}$ $=\frac{-(2)}{1}$ $=-2$ ∴ sum of the zeroes=-2 $product of the zeroes=\frac{c}{a}$ $=\frac{-3}{1}$ $=-3$ ∴ Product of the zeroes=-3 Hence VERIFIED the relation between the coefficient and zeroes.

39.

find the quadratic polynomial whose zeros are 1 and -3 verify the relation between the coefficient and zeros

Answer»

GIVEN :

The zeroes of the quadratic equation are 1 and -3

TO VERIFY:

The relation between the coefficient and zeroes

SOLUTION :

Given that the zeroes of the quadratic equation are 1 and -3

Let $\alpha=1$ and $\beta=-3$ be the zeroes of the given quadratic equation.

The quadratic equation can be written with the given zeroes is given by:

$x^2-(sum of the zeroes)x+product of the zeroes=0$

$sum of the zeroes=\alpha+\beta=1-3$

$=-2$

$sum of the zeroes=\alpha+\beta=-2$

$product of the zeroes=\alpha\times \beta=1\times (-3)$

$=-3$

$product of the zeroes=\alpha\times \beta=-3$

Then the quadratic equation can be written as

$x^2-(-2)x+(-3)=0$

$x^2+2x-3=0$ it is of the form $ax^2+bx+c=0$

COMPARING the 2 EQUATIONS we GET the coefficients a=1 , b=2 and c=-3

The relation between the coefficient and zeroes is

$sum of the zeroes=\frac{-b}{a}$

$=\frac{-(2)}{1}$

$=-2$

∴ sum of the zeroes=-2

$product of the zeroes=\frac{c}{a}$

$=\frac{-3}{1}$

$=-3$

∴ Product of the zeroes=-3

Hence VERIFIED the relation between the coefficient and zeroes.

Discussion

40.	6.. Length, breadth and height of a cuboid are 12 cm,5cm and 56 cmrespectively. Its longest diagonal isOa.13 cmb)56 cmc) 15 cmOd) none of these
Answer» ANSWER: answer d) NONE of these

40.

6.. Length, breadth and height of a cuboid are 12 cm,5cm and 56 cmrespectively. Its longest diagonal isOa.13 cmb)56 cmc) 15 cmOd) none of these

Answer»

ANSWER:

answer d) NONE of these

Discussion

41.	N(A)=3 then number of proper subsets of A is
Answer» Step-by-step EXPLANATION: PROPER SUBSET (2^n)-2 Total SUBSETS 2^n

41.

N(A)=3 then number of proper subsets of A is

Answer»

Step-by-step EXPLANATION:

PROPER SUBSET (2^n)-2

Total SUBSETS 2^n

Discussion

42.	Write a quadratic equation whose one of the root is -2divide by 3 -root3divide by 2
Answer» Step-by-step explanation: hhuuuhyyyyyyyyyyyo ok hgggbhyg th you do not have a great DAY and I am MANJUNATH I am manjunath I am manjunath I am manjunath I am a list of all the best of my FRIEND request PLEASE find the attached

42.

Write a quadratic equation whose one of the root is -2divide by 3 -root3divide by 2

Answer»

Step-by-step explanation:

hhuuuhyyyyyyyyyyyo ok hgggbhyg th you do not have a great DAY and I am MANJUNATH I am manjunath I am manjunath I am manjunath I am a list of all the best of my FRIEND request PLEASE find the attached

Discussion

43.	Maths question. Algebra
Answer» Step-by-step explanation: HEY this solution wil be very LONG give it for more points and then post......OK

43.

Maths question. Algebra

Answer»

Step-by-step explanation:

HEY this solution wil be very LONG give it for more points and then post......OK

Discussion

44.	please solve it
Answer» 625–16x to the POWER of 4

Discussion

45.	Solve the following equations :x+ 5 = 10
Answer» Answer: HEY mate.. your answer: x+5=10 x=10-5. x=5 hence, x=5 hope this HELPS.. PLEASE MARK me as the Brainliest

45.

Solve the following equations :x+ 5 = 10

Answer»

Answer:

HEY mate.. your answer:

x+5=10

x=10-5.

x=5

hence, x=5

hope this HELPS..

PLEASE MARK me as the Brainliest

Discussion

46.	-75 multiply 8 bracket communicative property of multiplication
Answer» BRO what COMMUNICATIVE PROPERTY of MULTIPLICATION

Discussion

47.	the length breadth and height of a cuboid are int he ratio 10:6:5 its total surface area is 1120sqcm find the area of its vertical faces
Answer» Answer: let ratios be 10x,6x and 5x surface area of cuboid is 2( lb+bh+hl) Step-by-step explanation: THEREFORE, 2(60xsq.+30xsq.+50xsq.)=1120cm sq 2(140xsq.)=1120cm sq. 280 x sq. =1120cm sq. x sq.=1120/280 sq. x sq.=4 cm sq. by CANCELLING the squares, x=4cm therefore, 10x =40cm,6x=60cm,5x=50cm hope this helps U STAY blessed dear

47.

the length breadth and height of a cuboid are int he ratio 10:6:5 its total surface area is 1120sqcm find the area of its vertical faces

Answer»

Answer:

let ratios be 10x,6x and 5x

surface area of cuboid is 2(

lb+bh+hl)

Step-by-step explanation:

THEREFORE, 2(60xsq.+30xsq.+50xsq.)=1120cm sq

2(140xsq.)=1120cm sq.

280 x sq. =1120cm sq.

x sq.=1120/280 sq.

x sq.=4 cm sq.

by CANCELLING the squares, x=4cm

therefore, 10x =40cm,6x=60cm,5x=50cm

hope this helps U STAY blessed dear

Discussion

48.	The temperature of a cartine place fell b 2° c (A change of 2°c) each day for a week. what is the change of temperature over the whole week
Answer» ANSWER: the CHANGE of TEMPERATURE over WHOLE WEEK will be by 14°C

48.

The temperature of a cartine place fell b 2° c (A change of 2°c) each day for a week. what is the change of temperature over the whole week

Answer»

ANSWER:

the CHANGE of TEMPERATURE over WHOLE WEEK will be by 14°C

Discussion

49.	Define Set Theory ? Briefly
Answer» Answer: Set theory is the MATHEMATICAL theory of well-determined collections, called sets, of objects that are called MEMBERS, or elements, of the set. ... So, the ESSENCE of set theory is the study of infinite sets, and therefore it can be DEFINED as the mathematical theory of the actual—as opposed to potential—infinite.

49.

Define Set Theory ? Briefly

Answer»

Answer:

Set theory is the MATHEMATICAL theory of well-determined collections, called sets, of objects that are called MEMBERS, or elements, of the set. ... So, the ESSENCE of set theory is the study of infinite sets, and therefore it can be DEFINED as the mathematical theory of the actual—as opposed to potential—infinite.

Discussion

50.	9999=48888=81816=36666=68686=61212=01919=
Answer» STAY home Step-by-step EXPLANATION: stay SAVE stay save stay save stay save stay save stay save stay save

50.

9999=48888=81816=36666=68686=61212=01919=

Answer»

STAY home

Step-by-step EXPLANATION:

stay SAVE

stay save

Discussion

Explore topic-wise InterviewSolutions in Current Affairs.

Best Answer marked by brainlist​

The value of x is....... ​

A positive number is 5 times another number. If 21 is added to both the numbers,then one of the new numbers becomes twice the other new number. What are thenumbers?​

____________________________

QUESTION:

_______________________________

step to step EXPLANATION:

The iq of students in a certain college is assumed to be normally distributed with mean 100 and variance 25. If 3 students are selected at random, find the probability that all of them have iq between 102 and 110. (Given A(0.4)=0.4772 and A(2)=0.1554)

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AnswEr:-

Explanation:-

Given:-

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Please solve this question : 18 X 6 +18X 7=18 X[6+_____]

Solve cos^2(70°)..............​

the height of the parallelogram is one third of its base if the area of the parallelogram 192cm² find its height and base​

Two bags contain 3 white, 2 black and 2 white, 4 black balls respectively. A ball is chosen at random then the probability of its being black is-

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Find 3-rational number between -3/2 and5/3.​

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find the quadratic polynomial whose zeros are 1 and -3 verify the relation between the coefficient and zeros​

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9999=48888=81816=36666=68686=61212=01919=​

stay save

Best Answer marked by brainlist

The value of x is.......

A positive number is 5 times another number. If 21 is added to both the numbers,then one of the new numbers becomes twice the other new number. What are thenumbers?

find the quadratic polynomial the sum of whose zeros is 0 and their product is -1 hence, find the zeros of the polynomial

Simply the following (-1)×225

Anyone who study in class 8 who tell me about rational number with its kind

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Write rooster and set builder form of primes less than 20

Find a quadratic polynomial the sum of whose roots is √2 and their product is 1/3

Plz help me integrate this..thank u

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1. Expand : (i) (2x + 3)^4

Plz help me integrate this...thank u

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The sum of two numbers is -4/3 if one of the numbers is -5 find other number

The surface of the sphere is 4cm .find its diameter?

Solve graphicallyQ1) x + y = 5 & x +2 y = 5Q2) 2x - y = 2 & 4 x – y = 4

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Solve kaise karna is question ko 3×(_1)

Please give answer correct please please give all questions answer please

29. The weight (in kg) of 30 students of a class are:39, 38, 36, 38, 40, 42, 43, 44, 33, 33, 31, 45, 46, 38, 37, 31, 30, 39, 41, 41, 46,36,35,34, 39, 43, 32, 37, 29, 26.Prepare a frequency distribution table using tally marks. Draw a histogram.

Solve cos^2(70°)..............

the height of the parallelogram is one third of its base if the area of the parallelogram 192cm² find its height and base

Solve:1. 8y - 4y = 203. 5y + 8 = 8y - 185. 8 - 7x = 13x + 87. 9 + m = 6m + 8 - m9. 19x + 13 - 12x + 3 = 2311. 6 - 5m - 1 + 3m = 013. 6(x + 4) = 3615. 4(x - 2) = 1217. 7(x - 2) = 2(2x - 4)19. 21 - 3(b - 7) = b + 20

If x is equal to root 13 + 2 root 3 find the value of x - 1 by x

Find A^-1 check the attachment

Find 3-rational number between -3/2 and5/3.

The sum of the digits of a two digit number is 9 . Also nine this number is twice the number obtained by reversing the order of the digits. Find the number

find the quadratic polynomial whose zeros are 1 and -3 verify the relation between the coefficient and zeros

6.. Length, breadth and height of a cuboid are 12 cm,5cm and 56 cmrespectively. Its longest diagonal isOa.13 cmb)56 cmc) 15 cmOd) none of these

please solve it

Solve the following equations :x+ 5 = 10

-75 multiply 8 bracket communicative property of multiplication

the length breadth and height of a cuboid are int he ratio 10:6:5 its total surface area is 1120sqcm find the area of its vertical faces

The temperature of a cartine place fell b 2° c (A change of 2°c) each day for a week. what is the change of temperature over the whole week

Define Set Theory ? Briefly

9999=48888=81816=36666=68686=61212=01919=