332354 + Interview Questions in Secondary School in Math

1.	11/15×211/32 find theproduct
Answer» Answer: 4.39 Step-by-step explanation: 11/15=9.73 211/35=6.02 0.73x6.02=4.39

1.

11/15×211/32 find theproduct

Answer»

Answer:

4.39

Step-by-step explanation:

11/15=9.73

211/35=6.02

0.73x6.02=4.39

Discussion

2.	-2/5+5/6+-(3/5)+7/15 simlify
Answer» Step-by-step EXPLANATION: HOPE this ANSWER HELPS.

2.

-2/5+5/6+-(3/5)+7/15 simlify

Answer»

Step-by-step EXPLANATION:

HOPE this ANSWER HELPS.

Discussion

3.	There are 321,200 people who played tennis last year.The players decreased by 6% this year. How Many People played this year
Answer» ANSWER: NUMBER of PEOPLE who PLAYED this YEAR are 301928

3.

There are 321,200 people who played tennis last year.The players decreased by 6% this year. How Many People played this year

Answer»

ANSWER:

NUMBER of PEOPLE who PLAYED this YEAR are 301928

Discussion

4.	Insert 2 rational numbers between 1/3 and 9/10
Answer» Answer: 1/3 = 0.33. 9/10 = 0.9 rational NUMBERS are = 0.45678 , 0.34652

4.

Insert 2 rational numbers between 1/3 and 9/10

Answer»

Answer:

1/3 = 0.33.

9/10 = 0.9

rational NUMBERS are = 0.45678 , 0.34652

Discussion

5.	Factors of X square minus 5X +6 is
Answer» Answer: x²-5x+6 x²-2x-3x+6 x(x-2)-3(x-2) (x-2)(x-3) HOPE it will help you KINDLY mark the answer as BRAINLIST

5.

Factors of X square minus 5X +6 is

Answer»

Answer:

x²-5x+6

x²-2x-3x+6

x(x-2)-3(x-2)

(x-2)(x-3)

HOPE it will help you KINDLY mark the answer as BRAINLIST

Discussion

6.	Show that the system of equations2x+5y=17‚5x+3y=14Has a unique solution .find the solution
Answer» Answer: 2x+5y-17=0,5x+3y-14=0 here a1=2,b1=5,C1= -17 a2=5,b2=3,C2= -14 $\frac{a1}{a2} not \: equal \frac{b1}{b2} \\ so \: this \: lines \: have \: unique \: solution \\ since \: these \: are \: interesting \: lines$

6.

Show that the system of equations2x+5y=17‚5x+3y=14Has a unique solution .find the solution

Answer»

Answer:

2x+5y-17=0,5x+3y-14=0

here a1=2,b1=5,C1= -17

a2=5,b2=3,C2= -14

$\frac{a1}{a2} not \: equal \frac{b1}{b2} \\ so \: this \: lines \: have \: unique \: solution \\ since \: these \: are \: interesting \: lines$

Discussion

7.	5.There are 1500 students in a school. If a child pays Rs. 180.00 as tuition fee and Rs.60.00 as computer fee per month. How much money is collected in a month?
Answer» Answer: 360000 Step-by-step explanation: 180+60=240 TOTAL feebto be paid 250×1500=360000

7.

5.There are 1500 students in a school. If a child pays Rs. 180.00 as tuition fee and Rs.60.00 as computer fee per month. How much money is collected in a month?

Answer»

Answer:

360000

Step-by-step explanation:

180+60=240 TOTAL feebto be paid

250×1500=360000

Discussion

8.	Define Preparation of soil .________(-_-)_________⌐╦╦═─ No Spam
Answer» ANSWER: ᴘʀᴇᴘᴀʀᴀᴛɪᴏɴ ᴏғ sᴏɪʟ ɪs ᴛʜᴇ ғɪʀsᴛ sᴛᴇᴘ ʙᴇғᴏʀᴇ ɢʀᴏᴡɪɴɢ ᴏғ ᴄʀᴏᴘ. ɪᴛ ʜᴇʟᴘs ᴛᴏ ᴛᴜʀɴ ᴛʜᴇ sᴏɪʟ ᴀɴᴅ ʟᴏᴏsᴇɴ ɪᴛ ᴛᴏ ᴀʟʟᴏᴡ ᴛʜᴇ ʀᴏᴏᴛs ᴛᴏ ᴘᴇɴᴇᴛʀᴀᴛᴇ ᴅᴇᴇᴘ ɪɴᴛᴏ ɪᴛ. ᴛʜᴇ ʟᴏᴏsᴇɴɪɴɢ ᴏғ ᴛʜᴇ sᴏɪʟ ʜᴇʟᴘs ɪɴ ᴛʜᴇ ɢʀᴏᴡᴛʜ ᴏғ sᴇᴠᴇʀᴀʟ sᴏɪʟ ᴍɪᴄʀᴏʙᴇs, ᴇᴀʀᴛʜᴡᴏʀᴍs ᴇᴛᴄ., ᴡʜɪᴄʜ ᴇɴʀɪᴄʜ ᴛʜᴇ sᴏɪʟ ᴡɪᴛʜ ʜᴜᴍᴜs ᴀɴᴅ ᴏᴛʜᴇʀ ᴇssᴇɴᴛɪᴀʟ ɴᴜᴛʀɪᴇɴᴛs.

8.

Define Preparation of soil .________(-_-)_________⌐╦╦═─ No Spam

Answer»

ANSWER:

ᴘʀᴇᴘᴀʀᴀᴛɪᴏɴ ᴏғ sᴏɪʟ ɪs ᴛʜᴇ ғɪʀsᴛ sᴛᴇᴘ ʙᴇғᴏʀᴇ ɢʀᴏᴡɪɴɢ ᴏғ ᴄʀᴏᴘ. ɪᴛ ʜᴇʟᴘs ᴛᴏ ᴛᴜʀɴ ᴛʜᴇ sᴏɪʟ ᴀɴᴅ ʟᴏᴏsᴇɴ ɪᴛ ᴛᴏ ᴀʟʟᴏᴡ ᴛʜᴇ ʀᴏᴏᴛs ᴛᴏ ᴘᴇɴᴇᴛʀᴀᴛᴇ ᴅᴇᴇᴘ ɪɴᴛᴏ ɪᴛ. ᴛʜᴇ ʟᴏᴏsᴇɴɪɴɢ ᴏғ ᴛʜᴇ sᴏɪʟ ʜᴇʟᴘs ɪɴ ᴛʜᴇ ɢʀᴏᴡᴛʜ ᴏғ sᴇᴠᴇʀᴀʟ sᴏɪʟ ᴍɪᴄʀᴏʙᴇs, ᴇᴀʀᴛʜᴡᴏʀᴍs ᴇᴛᴄ., ᴡʜɪᴄʜ ᴇɴʀɪᴄʜ ᴛʜᴇ sᴏɪʟ ᴡɪᴛʜ ʜᴜᴍᴜs ᴀɴᴅ ᴏᴛʜᴇʀ ᴇssᴇɴᴛɪᴀʟ ɴᴜᴛʀɪᴇɴᴛs.

Discussion

9.	77134. sin-1+ sin- = tan17365
Answer» ANSWER: sin−1178+sin−153=tan−13677 Step-by-step EXPLANATION: MAKE me as BRAINLIST

9.

77134. sin-1+ sin- = tan17365

Answer»

ANSWER:

sin−1178+sin−153=tan−13677

Step-by-step EXPLANATION:

MAKE me as BRAINLIST

Discussion

10.	In the above question 18, if internal bisector of and angle C intersectat P, prove that angle PBO= 90°and angle BOC + angle BPC= 180°
Answer» ANSWER: 12 is the answer of your QUESTION Step-by-step explanation: 12 122 12236 4488

10.

In the above question 18, if internal bisector of and angle C intersectat P, prove that angle PBO= 90°and angle BOC + angle BPC= 180°

Answer»

ANSWER:

12 is the answer of your QUESTION

Step-by-step explanation:

12 122 12236 4488

Discussion

11.	Such5.There are 1500 students in a school. If a child pays Rs. 180.00 as tuition fee and Rs.60.00 as computer fee per month. How much money is collected in a month?
Answer» Answer: TOTAL fee= Rs.360000 Step-by-step explanation: Monthly fee PER child= tution fee + computer fee = 180 + 60 = Rs. 240 Per child Total monthly fee= fee per child x total students = 240 x 1500 =Rs. 360000

11.

Such5.There are 1500 students in a school. If a child pays Rs. 180.00 as tuition fee and Rs.60.00 as computer fee per month. How much money is collected in a month?

Answer»

Answer:

TOTAL fee= Rs.360000

Step-by-step explanation:

Monthly fee PER child= tution fee + computer fee

= 180 + 60

= Rs. 240 Per child

Total monthly fee= fee per child x total students

= 240 x 1500

=Rs. 360000

Discussion

12.	EXERCISE 4.21. Find the roots of the following quadratic equations by factorisation:x2-3x - 10=0(ii) 2x2 + x-6=0(ii) 2x2 + 7x+5V2 = 0(iv) 2x2 - x + - = 08(v) 100 x2-20x+1=0
Answer» Solution: $\\ \circ \: {\boxed{\tt\green{ Question \ 1}}}$ x² – 3x – 10 =0 Taking LHS, $\colon\implies$ x² – 5x + 2x – 10 $\colon\implies$ x(x – 5) + 2(x – 5) $\colon\implies$ (x – 5)(x + 2) The roots of x² – 3x – 10 = 0 are the values of x for which (x – 5)(x + 2) = 0 . As a Result x – 5 = 0 or x + 2 = 0 $\colon\implies$ x = 5 or x = -2 $\\ \circ \: {\boxed{\tt\purple{ Question \ 2}}}$ 2x² + x – 6 = 0 Taking LHS, $\colon\implies$ 2x² + 4x – 3x – 6 $\colon\implies$ 2x(x + 2) – 3(x + 2) $\colon\implies$ (x + 2)(2x – 3) The roots 2x² + x – 6=0 are the values of x for which (x – 5)(x + 2) = 0 As a Result x + 2 = 0 or 2x – 3 = 0 $\colon\implies$ x = -2 or ${\tt{x = \dfrac{3}{2} }}$ $\\ \circ \: {\boxed{\tt\blue{ Question \ 3}}}$ √2x² + 7x + 5√2=0 Taking LHS, $\colon\implies$ √2x² + 5x + 2x + 5√2 $\colon\implies$ x(√2x + 5) + √2(√2x + 5) $\colon\implies$ (√2x + 5)(x + √2) The roots of √2x² + 7x + 5√2 = 0 are the values of x for which (x – 5)(x + 2) = 0 As a Result √2x + 5 = 0 or x + √2 = 0 $\colon\implies$ x = -5/√2 or x = -√2 $\\ \circ \: {\boxed{\tt\red{ Question \ 4}}}$ 2x² – x + 1/8 = 0 Taking LHS, $\colon\implies$ 1/8 (16x² – 8X + 1) $\colon\implies$ 1/8 (16x² – 4x -4x + 1) $\colon\implies$ 1/8 (4x(4x – 1) -1(4x – 1)) $\colon\implies$ 1/8(4x – 1)² The roots of 2x² – x + 1/8 = 0, are the values of x for which (4x – 1)²= 0 As a Result (4x – 1) = 0 or (4x – 1) = 0 $\colon\implies$ x = 1/4 or x = 1/4 $\\ \circ \: {\boxed{\tt\pink{ Question \ 5}}}$ 100x² – 20X + 1=0 Taking LHS, $\colon\implies$ 100x² – 10x – 10x + 1 $\colon\implies$ 10x(10x – 1) -1(10x – 1) $\colon\implies$ (10x – 1)² The roots 100x² – 20x + 1=0, are the values of x for which (10x – 1)² = 0 $\colon\implies$ (10x – 1) = 0 or (10x – 1) = 0 $\colon {\tt\bold{ x = \dfrac{1}{10} \: Or \: x = \dfrac{1}{10} }} \\$

12.

EXERCISE 4.21. Find the roots of the following quadratic equations by factorisation:x2-3x - 10=0(ii) 2x2 + x-6=0(ii) 2x2 + 7x+5V2 = 0(iv) 2x2 - x + - = 08(v) 100 x2-20x+1=0

Answer»

Solution:

$\\ \circ \: {\boxed{\tt\green{ Question \ 1}}}$

x² – 3x – 10 =0

Taking LHS,

$\colon\implies$ x² – 5x + 2x – 10

$\colon\implies$ x(x – 5) + 2(x – 5)

$\colon\implies$ (x – 5)(x + 2)

The roots of x² – 3x – 10 = 0 are the values of x for which (x – 5)(x + 2) = 0 .

As a Result

x – 5 = 0 or x + 2 = 0

$\colon\implies$ x = 5 or x = -2

$\\ \circ \: {\boxed{\tt\purple{ Question \ 2}}}$

2x² + x – 6 = 0

Taking LHS,

$\colon\implies$ 2x² + 4x – 3x – 6

$\colon\implies$ 2x(x + 2) – 3(x + 2)

$\colon\implies$ (x + 2)(2x – 3)

The roots 2x² + x – 6=0 are the values of x for which (x – 5)(x + 2) = 0

As a Result

x + 2 = 0 or 2x – 3 = 0

$\colon\implies$ x = -2 or ${\tt{x = \dfrac{3}{2} }}$

$\\ \circ \: {\boxed{\tt\blue{ Question \ 3}}}$

√2x² + 7x + 5√2=0

Taking LHS,

$\colon\implies$ √2x² + 5x + 2x + 5√2

$\colon\implies$ x(√2x + 5) + √2(√2x + 5)

$\colon\implies$ (√2x + 5)(x + √2)

The roots of √2x² + 7x + 5√2 = 0 are the values of x for which (x – 5)(x + 2) = 0

As a Result

√2x + 5 = 0 or x + √2 = 0

$\colon\implies$ x = -5/√2 or x = -√2

$\\ \circ \: {\boxed{\tt\red{ Question \ 4}}}$

2x² – x + 1/8 = 0

Taking LHS,

$\colon\implies$ 1/8 (16x² – 8X + 1)

$\colon\implies$ 1/8 (16x² – 4x -4x + 1)

$\colon\implies$ 1/8 (4x(4x – 1) -1(4x – 1))

$\colon\implies$ 1/8(4x – 1)²

The roots of 2x² – x + 1/8 = 0, are the values of x for which (4x – 1)²= 0

As a Result

(4x – 1) = 0 or (4x – 1) = 0

$\colon\implies$ x = 1/4 or x = 1/4

$\\ \circ \: {\boxed{\tt\pink{ Question \ 5}}}$

100x² – 20X + 1=0

Taking LHS,

$\colon\implies$ 100x² – 10x – 10x + 1

$\colon\implies$ 10x(10x – 1) -1(10x – 1)

$\colon\implies$ (10x – 1)²

The roots 100x² – 20x + 1=0, are the values of x for which (10x – 1)² = 0

$\colon\implies$ (10x – 1) = 0 or (10x – 1) = 0

$\colon {\tt\bold{ x = \dfrac{1}{10} \: Or \: x = \dfrac{1}{10} }} \\$

Discussion

13.	If A={ø.(ø)} then the power set of A is
Answer» ANSWER: THE POWER SET OF A IS NULL.

13.

If A={ø.(ø)} then the power set of A is

Answer»

ANSWER:

THE POWER SET OF A IS NULL.

Discussion

14.	Factories the following quadratic polynomial by using factor theoram. di j x^+7x+10
Answer» Step-by-step EXPLANATION: di jx^7x+10 use commutative PROPERTY to REORDER the terms d J x^7x+10i

14.

Factories the following quadratic polynomial by using factor theoram. di j x^+7x+10

Answer»

Step-by-step EXPLANATION:

di jx^7x+10

use commutative PROPERTY to REORDER the terms

d J x^7x+10i

Discussion

15.	There is a slide in a park.One of its side was has been painted in some colour with a message 'keep the park green and clean' . If the sides of the 15m,11 metre and 6 metres , find the area painted in colour
Answer» ANSWER: 45 is the answer of your QUESTION is

15.

There is a slide in a park.One of its side was has been painted in some colour with a message 'keep the park green and clean' . If the sides of the 15m,11 metre and 6 metres , find the area painted in colour

Answer»

ANSWER:

45 is the answer of your QUESTION is

Discussion

16.	5978 18 divisible by 5 or notif it is divisible give reason
Answer» QUESTION: 5978 18 DIVISIBLE by 5 or not if it is divisible give reason ANSWER: 5978 18 is not divisible by five since NEITHER of them END with 5 nor 0. -------------------------------------------------------------------------------------------------------- HOPE this helps you [PLEASE MARK ME AS THE BRAINLIEST ANSWER]

16.

5978 18 divisible by 5 or notif it is divisible give reason

Answer»

QUESTION: 5978 18 DIVISIBLE by 5 or not if it is divisible give reason

ANSWER: 5978 18 is not divisible by five since NEITHER of them END with 5 nor 0.

--------------------------------------------------------------------------------------------------------

HOPE this helps you

[PLEASE MARK ME AS THE BRAINLIEST ANSWER]

Discussion

17.	Insert a rational number between√5 and√7
Answer» Answer: there are INFINITE RATIONAL numbers between√5&√7... like 2.231,2.232,2.233,2.234,............. Step-by-step EXPLANATION: HOPE it's helpful.... MARK as Brainliest... Tq

17.

Insert a rational number between√5 and√7

Answer»

Answer:

there are INFINITE RATIONAL numbers between√5&√7...

like 2.231,2.232,2.233,2.234,.............

Step-by-step EXPLANATION:

HOPE it's helpful....

MARK as Brainliest...

Tq

Discussion

18.	Find the area of triangle having side as 3,4,5,cm respectively
Answer» Answer: 6 Step-by-step explanation: 1/2 ×3 × 4 3×2 6 6 cm² okay . .

18.

Find the area of triangle having side as 3,4,5,cm respectively

Answer»

Answer:

6

Step-by-step explanation:

1/2 ×3 × 4

3×2

6

6 cm²

okay

.

Discussion

19.	Please answer this question urgently
Answer» Step-by-step EXPLANATION: HOPE it is HELPFUL for you

19.

Please answer this question urgently

Answer»

Step-by-step EXPLANATION:

HOPE it is HELPFUL for you

Discussion

20.	1 million =1 X 10x what is the value of x
Answer» Answer: 100,000 Step-by-step explanation: 1,000,000 = 1 X 10x 1,000,000= 10x X= 1,000,000/10 X = 100,000

20.

1 million =1 X 10x what is the value of x

Answer»

Answer:

100,000

Step-by-step explanation:

1,000,000 = 1 X 10x

1,000,000= 10x

X= 1,000,000/10

X = 100,000

Discussion

21.	समांतरसोडा, म...M10 5यह शोधा
Answer» ANSWER: Pataa NAHI yaar Step-by-step EXPLANATION: Nahi pataa

21.

समांतरसोडा, म...M10 5यह शोधा

Answer»

ANSWER:

Pataa NAHI yaar

Step-by-step EXPLANATION:

Nahi pataa

Discussion

22.	Solve the 3 question given above.Chapter : AlgebraPlease write step by step explanation of all the 3 questions and then answer.The most deserving answer will be rated 5 stars, Thanked and will me marked as the brainliest and I will also follow you.
Answer» ANSWER: SEE in the ATTACHMENT your ANSWERS

22.

Solve the 3 question given above.Chapter : AlgebraPlease write step by step explanation of all the 3 questions and then answer.The most deserving answer will be rated 5 stars, Thanked and will me marked as the brainliest and I will also follow you.

Answer»

ANSWER:

SEE in the ATTACHMENT your ANSWERS

Discussion

23.	Simplify. [(-3/4)×8/15]-[2/5×(-5/8)]-[(-3/8)×(-2/9)
Answer» Answer: Step-by-step explanation: Solve each of the following pairs of equations by the elimination method.1. 8x+ 5y = 93x+2y = 42.2x+3y=84x + 6y=73.3x+4y=255x-6y=-9 फाइंड द एचसीएफ ऑफ 42 एंड 60 बाइक कलर्स टीवी सिनेमा A sum of money doubles in 4 years.calculate the rate of interest.At the same rate,how much time will IT take to AMOUNT to 4 TIMES C.B - A.BVector prodcut or CROSS product7. SIMPLIFY : 8 / 15 - 12 / 45 + 15 / 30 - 9 / 15 -... Simplify = (-21)+(-8)+(-15)+9 - Brainly.in Simplify:4√81-8(3√216)+15(5√32)+√225 - Brainly.in Simplify the given expression. (5+√7) (2+√5) -...

23.

Simplify. [(-3/4)×8/15]-[2/5×(-5/8)]-[(-3/8)×(-2/9)

Answer»

Answer:

Step-by-step explanation:

Solve each of the following pairs of equations by the elimination method.1. 8x+ 5y = 93x+2y = 42.2x+3y=84x + 6y=73.3x+4y=255x-6y=-9 फाइंड द एचसीएफ ऑफ 42 एंड 60 बाइक कलर्स टीवी सिनेमा A sum of money doubles in 4 years.calculate the rate of interest.At the same rate,how much time will IT take to AMOUNT to 4 TIMES C.B - A.BVector prodcut or CROSS product7.

SIMPLIFY : 8 / 15 - 12 / 45 + 15 / 30 - 9 / 15 -...

Simplify = (-21)+(-8)+(-15)+9 - Brainly.in

Simplify:4√81-8(3√216)+15(5√32)+√225 - Brainly.in

Simplify the given expression. (5+√7) (2+√5) -...

Discussion

24.	Solve for x and u in the simultaneous equations 4u - 4x =4 and u +6x = -6
Answer» ANSWER: I will POST the photo here please GIVE me a thank and follow me It the CORRECT one the above one is false

24.

Solve for x and u in the simultaneous equations 4u - 4x =4 and u +6x = -6

Answer»

ANSWER:

I will POST the photo here

please GIVE me a thank and follow me

It the CORRECT one the above one is false

Discussion

25.	Find the product of x(y+9x)(y^2-9xy+81x^2)
Answer» *Please MARK* my answer as the *brainliest***!

25.

Find the product of x(y+9x)(y^2-9xy+81x^2)

Answer»

Please MARK my answer as the brainliest!

Discussion

26.	2.2612 bar in the form of p/q
Answer» Answer: 2.2612 BAR is px2i is the ANSWERS

26.

2.2612 bar in the form of p/q

Answer»

Answer:

2.2612 BAR is px2i is the ANSWERS

Discussion

27.	Following table to draw graph of the equation x+y=3
Answer» ANSWER: MARK as BRAINLIEST

27.

Following table to draw graph of the equation x+y=3

Answer»

ANSWER:

MARK as BRAINLIEST

Discussion

28.	2,15,80,?,2030,10155
Answer» ANSWER: FIRST CHECK your QUESTION it MAY be 2,15,80.?,2030,10155

28.

2,15,80,?,2030,10155

Answer»

ANSWER:

FIRST CHECK your QUESTION it MAY be 2,15,80.?,2030,10155

Discussion

29.	Please help me i can't do my whole assignment alone..I want the answer of the whole page...please...
Answer» Answer: ans 4 : 1/6 and 1/4 :-there are infinite rational no.s between any two rational no. FIND LCM of 6and 4 =12 1/6 X ___/___ = ___/12 1/6 X 2/2 = 2/12 1/4 X ___/___=___/12 1/4 X 3/3= 3/12 1/6X2/2= 2/12 X 5 /5 = 10/60 1/4X3/3= 3/12X5/5 = 15 /60 4 rational no.s b/w 1/6 and 1/4 = 11/60 , 12/60 , 13/60 , 14/60 ........................................................................ Step-by-step explanation: MARK aS BRAINLIEST

29.

Please help me i can't do my whole assignment alone..I want the answer of the whole page...please...

Answer»

Answer:

ans 4 : 1/6 and 1/4

:-there are infinite rational no.s between any two rational no.

FIND LCM of 6and 4 =12

1/6 X ___/___ = ___/12

1/6 X 2/2 = 2/12

1/4 X ___/___=___/12

1/4 X 3/3= 3/12

1/6X2/2= 2/12 X 5 /5 = 10/60

1/4X3/3= 3/12X5/5 = 15 /60

4 rational no.s b/w 1/6 and 1/4 =

11/60 , 12/60 , 13/60 , 14/60

........................................................................

Step-by-step explanation:

MARK aS BRAINLIEST

Discussion

30.	Which term of the AP 8, 14, 20, 26---- will be 72 more than its 41 st term?
Answer» ANSWER:- $\sf \huge \: AP:8,4,20,26.... \\ \: \\ \\ \sf \huge \mapsto \: a=8 \\ \\ \sf \huge \mapsto \: d=14-8=6 \\ \\ \bf \huge \: Let T_n=T_41+72 \\ \\ \tt \huge \longmapsto \: a+(n-1)d-a-40d=72 \\ \\ \tt \huge \longmapsto \:d(n-1-40)=72 \\ \\ \tt \huge \longmapsto \:6(n-41)=72 \\ \\ \tt \huge \longmapsto \:n-41=12 \\ \\\tt \huge \longmapsto \: n=12+41 \\ \\ \tt \huge \longmapsto \:n=53 \\ \\ \bf \huge \bigstar \: Required \: \: term \: \: is \: \: 53 \\ \\ \bf \huge \bigstar \:53 \: th \: \: term \: \: of \: \: AP \: \: will \: \: be \: 72 \: \: more \: \: than \: \: 41 \: \: th \: \: term.....$

30.

Which term of the AP 8, 14, 20, 26---- will be 72 more than its 41 st term?

Answer»

ANSWER:-

$\sf \huge \: AP:8,4,20,26.... \\ \: \\ \\ \sf \huge \mapsto \: a=8 \\ \\ \sf \huge \mapsto \: d=14-8=6 \\ \\ \bf \huge \: Let T_n=T_41+72 \\ \\ \tt \huge \longmapsto \: a+(n-1)d-a-40d=72 \\ \\ \tt \huge \longmapsto \:d(n-1-40)=72 \\ \\ \tt \huge \longmapsto \:6(n-41)=72 \\ \\ \tt \huge \longmapsto \:n-41=12 \\ \\\tt \huge \longmapsto \: n=12+41 \\ \\ \tt \huge \longmapsto \:n=53 \\ \\ \bf \huge \bigstar \: Required \: \: term \: \: is \: \: 53 \\ \\ \bf \huge \bigstar \:53 \: th \: \: term \: \: of \: \: AP \: \: will \: \: be \: 72 \: \: more \: \: than \: \: 41 \: \: th \: \: term.....$

Discussion

31.	The LCM of (x+y)² , (x-y)² and (x²-y²) is
Answer» Step-by-step explanation: 2 x² - 18 y² = 2 (x² - 9 y²) = 2 (x² - (3 y)²) = 2 (X + 3y) (x - 3y) 5 x² y + 15 x y² = 5 x y (x + 3 y) x³ + 27 y³ = x³ + (3 y)³ = (x + 3 y) (x² + x (3y) + (3y)²) = (x + 3 y) (x² + 3 x y + 9 y²) L.C.M = 2 (x + 3y) x 5 x y x (x² + 3 x y + 9 y²) = 10 x y (x + 3y) (x² + 3 x y + 9 y²)

31.

The LCM of (x+y)² , (x-y)² and (x²-y²) is

Answer»

Step-by-step explanation:

2 x² - 18 y² = 2 (x² - 9 y²)

= 2 (x² - (3 y)²)

= 2 (X + 3y) (x - 3y)

5 x² y + 15 x y² = 5 x y (x + 3 y)

x³ + 27 y³ = x³ + (3 y)³

= (x + 3 y) (x² + x (3y) + (3y)²)

= (x + 3 y) (x² + 3 x y + 9 y²)

L.C.M = 2 (x + 3y) x 5 x y x (x² + 3 x y + 9 y²)

= 10 x y (x + 3y) (x² + 3 x y + 9 y²)

Discussion

32.	An elevator descends into a mine shaft at the rate of 12 m/min. If the descent starts from 20 m above the ground level, how long will it take to reach – 460 m.answer it plaess
Answer» EXPLANATION. An elevator DESCENDS into a mine shaft at the rate = 12m/min. if the descends starts from 20 m above the ground level. How long will it take to REACH -460m. According to the question, TOTAL distance elevator has to travel => initial position - Final position => 20 - ( - 460 ) => 480 m Now, elevator descends at rate of = 12 m/min elevator travel = 12 m/min = 1 min elevator travel 1 m = 1/12 min elevator travel = 460 = 1/12 X 480 => 40 it will take = 40 minutes

32.

An elevator descends into a mine shaft at the rate of 12 m/min. If the descent starts from 20 m above the ground level, how long will it take to reach – 460 m.answer it plaess

Answer»

EXPLANATION.

An elevator DESCENDS into a mine shaft at the

rate = 12m/min.

if the descends starts from 20 m above the

ground level.

How long will it take to REACH -460m.

According to the question,

TOTAL distance elevator has to travel

=> initial position - Final position

=> 20 - ( - 460 )

=> 480 m

Now,

elevator descends at rate of = 12 m/min

elevator travel = 12 m/min = 1 min

elevator travel 1 m = 1/12 min

elevator travel = 460 = 1/12 X 480

=> 40

it will take = 40 minutes

Discussion

33.	A train running at the speed of 60 km/hr crosses a pole in 9 seconds. What is the length of the train?
Answer» Answer: 220cm is the LENGHT of the TRAIN

33.

A train running at the speed of 60 km/hr crosses a pole in 9 seconds. What is the length of the train?

Answer»

Answer:

220cm is the LENGHT of the TRAIN

Discussion

34.	The arithmetic mean of the scores of a group of students in a test ofmathematics was 48. The brightest 20% of them secured a mean score of75 and dullest 25% a mean score of 30. The mean score of the remaining55% is: *o 560/11O 56O 510/11O 670/11
Answer» #this is the ANSWER# #I HOPE this HELPS you#

34.

The arithmetic mean of the scores of a group of students in a test ofmathematics was 48. The brightest 20% of them secured a mean score of75 and dullest 25% a mean score of 30. The mean score of the remaining55% is: *o 560/11O 56O 510/11O 670/11

Answer»

#this is the ANSWER#

#I HOPE this HELPS you#

Discussion

35.	4 [14] + 1+1+1] + .... + [i+j1+1 .... +n -1(0)
Answer» Answer: KAISA Kaisa QUESTION TEXT you copy of the air is 0 0 and you are the one that was not the right Step-by-step explanation: Please MARK as brainlist and the lubrication are a

35.

4 [14] + 1+1+1] + .... + [i+j1+1 .... +n -1(0)

Answer»

Answer:

KAISA Kaisa QUESTION TEXT you copy of the air is 0 0 and you are the one that was not the right

Step-by-step explanation:

Please MARK as brainlist and the lubrication are a

Discussion

36.	What will be the unit digit of square of 6487
Answer» Answer: 9 Step-by-step EXPLANATION: as when SQUARED 7×7=49 thus the UNIT DIGIT will be 9 hope this HELPS : )

36.

What will be the unit digit of square of 6487

Answer»

Answer:

9

Step-by-step EXPLANATION:

as when SQUARED 7×7=49

thus the UNIT DIGIT will be 9

hope this HELPS : )

Discussion

37.	Two arcs of the same length substend
Answer» here is your answer If in two circles, arcs of the same length subtend angles 60 ∘ and 75 ∘ at the CENTRE, find the ratio of their radii. Let the radii of the two circles be r 1 and r 2 . Let an arc of length I subtend an angle of 60 ∘ at the centre of the circle of radius r 1 , while let an arc of length I subtend an angle of 75 ∘ at the centre of the circle of radius r 2 . Now, 60 ∘ = 3 π radian and 75 ∘ = 12 5π radian We KNOW that in a circle of radius r unit, if an arc of length L unit subtends an angle θ radian at the centre, then θ= r l or l=rθ ∴l= 3 r 1 π and l= 12 r 2 5π ⟹ 3 r 1 π = 12 r 2 5π ⟹r 1 = 4 r 2 5 ⟹ r 2 r 1 = 4 5

37.

Two arcs of the same length substend

Answer»

here is your answer

If in two circles, arcs of the same length subtend angles 60

∘

and 75

∘

at the CENTRE, find the ratio of their radii.

Let the radii of the two circles be r

1

and r

2

. Let an arc of length I subtend an angle of 60

∘

at the centre of the circle of radius r

1

, while let an arc of length I subtend an angle of 75

∘

at the centre of the circle of radius r

2

.

Now, 60

∘

=

3

π

radian and 75

∘

=

12

5π

radian

We KNOW that in a circle of radius r unit, if an arc of length L unit subtends an angle θ radian at the centre, then

θ=

r

l

or l=rθ

∴l=

3

r

1

π

and l=

12

r

2

5π

⟹

3

r

1

π

=

12

r

2

5π

⟹r

1

=

4

r

2

5

⟹

r

2

r

1

=

4

5

Discussion

38.	921112716Q. 1. Find - XXX(-19)Q. 2. Write the additive Inverse of the following(i) -(ii) -Q. 3. Multiply ia by the reciprocalQ. 4. Fill in the blanks() The numbers................ and..........are their own reciprocates(ii) The reciprocals of -5 is ......Q. 5. Find any ten rational number between andQ. 6. Find the Solution(i) 2x - 3=7ICO32(ii) + =(ii) - 7x = 9(iv) = 10Q. 7. The difference between two numbers is 66. The ratio of eh two numbers is 2:5. Whare two numbers?
Answer» *Please* mark my ANSWER** as the BRAINLIEST/

38.

921112716Q. 1. Find - XXX(-19)Q. 2. Write the additive Inverse of the following(i) -(ii) -Q. 3. Multiply ia by the reciprocalQ. 4. Fill in the blanks() The numbers................ and..........are their own reciprocates(ii) The reciprocals of -5 is ......Q. 5. Find any ten rational number between andQ. 6. Find the Solution(i) 2x - 3=7ICO32(ii) + =(ii) - 7x = 9(iv) = 10Q. 7. The difference between two numbers is 66. The ratio of eh two numbers is 2:5. Whare two numbers?

Answer»

Please mark my ANSWER as the BRAINLIEST/

Discussion

39.	The number of atoms present in 4.25 grams of NH3is approximately1) 23 110 2) 23 5.1 10 3) 23
Answer» Step-by-step explanation: Answer. So 4.25 g ammonia will contain (6.022×10^23×4.25)/17 = 1.5×10^23 number of ammonia MOLECULES. Each molecule contain 4 atoms (1 N ATOM and 3 H atoms). So 4.25g ammonia will contain 1.5×10^23×4 = 6×10^23 number of atoms

39.

The number of atoms present in 4.25 grams of NH3is approximately1) 23 110 2) 23 5.1 10 3) 23

Answer»

Step-by-step explanation:

Answer. So 4.25 g ammonia will contain (6.022×10^23×4.25)/17 = 1.5×10^23 number of ammonia MOLECULES. Each molecule contain 4 atoms (1 N ATOM and 3 H atoms). So 4.25g ammonia will contain 1.5×10^23×4 = 6×10^23 number of atoms

Discussion

40.	Assuming that the base is 10, the value of the expressionlog 6 + 2 log 5 + log 4 - log 3 - log 2 is(a) 0 (b) 1(C) 2 (d) 3
Answer» ANSWER: LOG 0 (a) is the CORRECT answer

40.

Assuming that the base is 10, the value of the expressionlog 6 + 2 log 5 + log 4 - log 3 - log 2 is(a) 0 (b) 1(C) 2 (d) 3

Answer»

ANSWER:

LOG 0

(a) is the CORRECT answer

Discussion

41.	An elevator descends into a mine shaft at the rate of 12 m/min. If the descent starts from 20 m above the ground level, how long will it take to reach – 460 m.answer it quickly
Answer» Answer: Your answer is 40 minutes Step-by-step explanation: TOTAL decent= -460+20=-480 meter Elevator SPEED is 12 m/ MIN so 480÷12=40 minutes *Hope my answer* is helpful

41.

An elevator descends into a mine shaft at the rate of 12 m/min. If the descent starts from 20 m above the ground level, how long will it take to reach – 460 m.answer it quickly

Answer»

Answer:

Your answer is 40 minutes

Step-by-step explanation:

TOTAL decent= -460+20=-480 meter

Elevator SPEED is 12 m/ MIN so 480÷12=40 minutes

Hope my answer is helpful

Discussion

42.	The graph of x is equal to 9 is a straight line ( a)intersecting bothaxis, b parallel to y axis,c parallel to a axis, passing through th le origin
Answer» Answer: B part Step-by-step explanation: as the point x=9 can be written as (x,y) that is y=any number so (y,9) which is always PARALLEL to x AXIS if there Y=0 then it lies on x axis

42.

The graph of x is equal to 9 is a straight line ( a)intersecting bothaxis, b parallel to y axis,c parallel to a axis, passing through th le origin

Answer»

Answer:

B part

Step-by-step explanation:

as the point x=9 can be written as

(x,y) that is y=any number so (y,9)

which is always PARALLEL to x AXIS if there Y=0 then it lies on x axis

Discussion

43.	(1-1/4)(1-1/5)••••••(1-1/m)
Answer» 1 - 1/4 = 3/4 1 - 1/5 = 4/5 The numerator is always less by one. 1 - 1/(m-1) = (m-2)/(m-1) 1 - 1/m = (m-1)/m Given: (1 - 1/4)(1 - 1/5) ... (1 - 1/m) = 3/4 × 4/5 × ... × (m-2)/(m-1) × (m-1)/m Now we CLEARLY see the fractions cancelling out. It shows the answer is 3/m.

43.

(1-1/4)(1-1/5)••••••(1-1/m)

Answer»

1 - 1/4 = 3/4

1 - 1/5 = 4/5

The numerator is always less by one.

1 - 1/(m-1) = (m-2)/(m-1)

1 - 1/m = (m-1)/m

Given: (1 - 1/4)(1 - 1/5) ... (1 - 1/m)

= 3/4 × 4/5 × ... × (m-2)/(m-1) × (m-1)/m

Now we CLEARLY see the fractions cancelling out.

It shows the answer is 3/m.

Discussion

44.	867 should be multiplied with --------------- to make it a perfect square.
Answer» Answer: WELL, 827 would work great. In fact, its the only NUMBER that would work since 827 is a prime no. You could also MULTIPLY it by 827^n where n is an odd number, LIKE 1,3,5,7 etc. so that the final number becomes an even power of 827. I think question is 827 not 867 in the case of 867 ..it is not a perfect square plz follow me and thank my ANSWERS ❤❤❤

44.

867 should be multiplied with --------------- to make it a perfect square.

Answer»

Answer:

WELL, 827 would work great.

In fact, its the only NUMBER that would work since 827 is a prime no.

You could also MULTIPLY it by 827^n where n is an odd number, LIKE 1,3,5,7 etc. so that the final number becomes an even power of 827.

I think question is 827 not 867

in the case of 867 ..it is not a perfect square

plz follow me and thank my ANSWERS ❤❤❤

Discussion

45.	Which of the following numbers are perfect square 12 ,16, 25 , 30 , 36 , 41, 100 , 1000 , 36000, 4900 81000step by step
Answer» ANSWER: the PERFECT SQUARE NUMBER are 25,36,100 and 4900 Step-by-step explanation: 5^2=25 6^2=36 10^2=100 7^2=4900

45.

Which of the following numbers are perfect square 12 ,16, 25 , 30 , 36 , 41, 100 , 1000 , 36000, 4900 81000step by step

Answer»

ANSWER:

the PERFECT SQUARE NUMBER are 25,36,100 and 4900

Step-by-step explanation:

5^2=25

6^2=36

10^2=100

7^2=4900

Discussion

46.	The area of a triangle is 90cm square .if its base is 15cm ,find its altitude
Answer» Answer: altitude is 12cm Step-by-step explanation: bh/2= AREA of a triangle b= baseor SIDE of the triangle h= altitude or height of the triangle 15×h/2=90 h=12cm

46.

The area of a triangle is 90cm square .if its base is 15cm ,find its altitude

Answer»

Answer:

altitude is 12cm

Step-by-step explanation:

bh/2= AREA of a triangle

b= baseor SIDE of the triangle

h= altitude or height of the triangle

15×h/2=90

h=12cm

Discussion

47.	Solve the following equation-z\2+3\5=13\10
Answer» Step-by-step EXPLANATION: -z\2+3\5=13\10 -5z/10+6/10=13/10 -5z/10=7/10 -5z=7 z=-7/5 hope it HELPS PLEASE FOLLOW me

47.

Solve the following equation-z\2+3\5=13\10

Answer»

Step-by-step EXPLANATION:

-z\2+3\5=13\10

-5z/10+6/10=13/10

-5z/10=7/10

-5z=7

z=-7/5

hope it HELPS

PLEASE FOLLOW me

Discussion

48.	A 250 watt electric bulb is lighted for 8 hours daily . Calculate the energy consumed (in kWh) in the month of April.
Answer» Answer: 60Kwh Explanation: 250 WATT= 0.25kilowatt daily USAGE of energy = 0.25kilowatt×8hours= 2kilowatt hour Since APRIL has 30 days therfore multipling daily usage by 30 Energy CONSUMED in month of april=2kwh ×30 =60kwh

48.

A 250 watt electric bulb is lighted for 8 hours daily . Calculate the energy consumed (in kWh) in the month of April.

Answer»

Answer:

60Kwh

Explanation:

250 WATT= 0.25kilowatt

daily USAGE of energy = 0.25kilowatt×8hours= 2kilowatt hour

Since APRIL has 30 days therfore multipling daily usage by 30

Energy CONSUMED in month of april=2kwh ×30 =60kwh

Discussion

49.	Which of the following numbers is the product of 6/13 & - 13/3
Answer» ANSWER: -2 Step-by-step EXPLANATION: just MULTIPLY them you will GET answer

49.

Which of the following numbers is the product of 6/13 & - 13/3

Answer»

ANSWER:

-2

Step-by-step EXPLANATION:

just MULTIPLY them you will GET answer

Discussion

50.	What is 60% of 900 tell me pls
Answer» Answer: 540 Step-by-step EXPLANATION: $900 \times 60 \div 100 = 540$

50.

What is 60% of 900 tell me pls

Answer»

Answer:

540

Step-by-step EXPLANATION:

$900 \times 60 \div 100 = 540$

Discussion

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An elevator descends into a mine shaft at the rate of 12 m/min. If the descent starts from 20 m above the ground level, how long will it take to reach – 460 m.answer it plaess​

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According to the question,

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Answer:

Explanation:

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In the above question 18, if internal bisector of and angle C intersectat P, prove that angle PBO= 90°and angle BOC + angle BPC= 180°

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Factories the following quadratic polynomial by using factor theoram. di j x^+7x+10

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Please answer this question urgently

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2,15,80,?,2030,10155

Please help me i can't do my whole assignment alone..I want the answer of the whole page...please...

Which term of the AP 8, 14, 20, 26---- will be 72 more than its 41 st term?

The LCM of (x+y)² , (x-y)² and (x²-y²) is

An elevator descends into a mine shaft at the rate of 12 m/min. If the descent starts from 20 m above the ground level, how long will it take to reach – 460 m.answer it plaess

A train running at the speed of 60 km/hr crosses a pole in 9 seconds. What is the length of the train?

The arithmetic mean of the scores of a group of students in a test ofmathematics was 48. The brightest 20% of them secured a mean score of75 and dullest 25% a mean score of 30. The mean score of the remaining55% is: *o 560/11O 56O 510/11O 670/11

4 [14] + 1+1+1] + .... + [i+j1+1 .... +n -1(0)

What will be the unit digit of square of 6487

Two arcs of the same length substend

The number of atoms present in 4.25 grams of NH3is approximately1) 23 110 2) 23 5.1 10 3) 23

Assuming that the base is 10, the value of the expressionlog 6 + 2 log 5 + log 4 - log 3 - log 2 is(a) 0 (b) 1(C) 2 (d) 3

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