332354 + Interview Questions in Secondary School in Math

1.	Express sec 79° + 79° in terms of trigonometric ratios of angle between of 0° and 45°
Answer» ANSWER: $\Longrightarrow\sec(79° + 79°) \\ \\ \Longrightarrow \sec(158°) \\ \\ \Longrightarrow \sec(180° - 22°) \\ \\ \large \boxed{ \bf \blue {\Longrightarrow { \sec22° }}}$

1.

Express sec 79° + 79° in terms of trigonometric ratios of angle between of 0° and 45°

Answer»

$\Longrightarrow\sec(79° + 79°) \\ \\ \Longrightarrow \sec(158°) \\ \\ \Longrightarrow \sec(180° - 22°) \\ \\ \large \boxed{ \bf \blue {\Longrightarrow { \sec22° }}}$

Discussion

2.	The area of triangle 120 cm square. find the base if the measure of its corresponding altitude is 24 cm.
Answer» $\huge{\boxed{\tt{Answer:-10cm}}}$ $\sf\underline{\blue{\:\:\: Given:-\:\:\:}}$ $\sf\bullet Area \:of \:\triangle =120cm{}^{2}\\ \\ \sf\bullet Altitude\: of \:triangle=24cm$ $\bigstar{\boxed{\sf{Area\:of\:\triangle=\dfrac{1}{2}\times base\times height}}}$ Now $\sf\underline{\purple{\:\:\: SOLUTION:-\:\:\:}}$ $\sf\implies 120=\dfrac{1}{\cancel2}\times base\times \cancel{24}\\ \\ \sf\implies 120= 12\times base\\ \\ \sf\implies \cancel{\dfrac{120}{12}}=base\\ \\ \sf\implies 10=base$ $\sf\underline{Base\:of\triangle=10cm}$

2.

The area of triangle 120 cm square. find the base if the measure of its corresponding altitude is 24 cm.

Answer»

$\huge{\boxed{\tt{Answer:-10cm}}}$

$\sf\underline{\blue{\:\:\: Given:-\:\:\:}}$

$\sf\bullet Area \:of \:\triangle =120cm{}^{2}\\ \\ \sf\bullet Altitude\: of \:triangle=24cm$

$\bigstar{\boxed{\sf{Area\:of\:\triangle=\dfrac{1}{2}\times base\times height}}}$

Now

$\sf\underline{\purple{\:\:\: SOLUTION:-\:\:\:}}$

$\sf\implies 120=\dfrac{1}{\cancel2}\times base\times \cancel{24}\\ \\ \sf\implies 120= 12\times base\\ \\ \sf\implies \cancel{\dfrac{120}{12}}=base\\ \\ \sf\implies 10=base$

$\sf\underline{Base\:of\triangle=10cm}$

Discussion

3.	Sujit covers on distance is 40 minutes if he drives at a speed of 60 km per hour on an average find the speed at which he must drive to reduce the time of journey by 25%
Answer» ANSWER: The SPEED is 80 km/hr. hint: the DISTANCE is same

3.

Sujit covers on distance is 40 minutes if he drives at a speed of 60 km per hour on an average find the speed at which he must drive to reduce the time of journey by 25%

Answer»

ANSWER:

The SPEED is 80 km/hr.

hint: the DISTANCE is same

Discussion

4.	If the mean of 8 observation is x x + 1 x + 3 x + 4 x + 5 x + 6 x + 7 is 50, find the median of first five observations
Answer» ANSWER: dgGgegGbdabahzhdhYsysgwgzgfkHs

4.

If the mean of 8 observation is x x + 1 x + 3 x + 4 x + 5 x + 6 x + 7 is 50, find the median of first five observations

Answer»

ANSWER:

dgGgegGbdabahzhdhYsysgwgzgfkHs

Discussion

5.	Factorise (x-1)whole square (y-1)whole square
Answer» Step-by-step EXPLANATION: ${x - 1}^{2} = {x}^{2} + 1 + 2x$

5.

Factorise (x-1)whole square (y-1)whole square

Answer»

Step-by-step EXPLANATION:

${x - 1}^{2} = {x}^{2} + 1 + 2x$

Discussion

6.	Find a quadratic polynomial, the sum and product of whose zéroes are respectively -3 and 2.
Answer» ANSWER: omhb ygg Step-by-step EXPLANATION: hvshJkdy gbhmmOyg gkLihnfimGukgt hK8jkoiyhcR hjijKohtOu7hk KoygMuyggji bjiopgfynbfujko jloihjkogvbkohb

6.

Find a quadratic polynomial, the sum and product of whose zéroes are respectively -3 and 2.

Answer»

ANSWER:

omhb ygg

Step-by-step EXPLANATION:

hvshJkdy

gbhmmOyg

gkLihnfimGukgt

hK8jkoiyhcR

hjijKohtOu7hk

KoygMuyggji

bjiopgfynbfujko

jloihjkogvbkohb

Discussion

7.	Taxi fare city is follows for first km it is rs 8 for subsequent distance it is re 5 per km write a linear equation for this information and draw graph
Answer» Answer: here is your ans Step-by-step explanation: TOTAL distance covered = X km. (Given) Fair for 1st kilometre = Rs.8 (Given) Fair for rest distance = (x 1) 5 (SINCE, it is given that except for first kilometre, the fare for subsequent distance is Rs 5 per km) Total fair = 8 + (x 1) 5 y = 8 + 5x 5 (Total fare is given to be y) y = 5x + 3 5x y + 3 = 0 This is the required linear equation. pls mark as brilliant

7.

Taxi fare city is follows for first km it is rs 8 for subsequent distance it is re 5 per km write a linear equation for this information and draw graph

Answer»

Answer:

here is your ans

Step-by-step explanation:

TOTAL distance covered = X km. (Given)

Fair for 1st kilometre = Rs.8 (Given)

Fair for rest distance = (x 1) 5 (SINCE, it is given that except for first kilometre, the fare for subsequent distance is Rs 5 per km)

Total fair = 8 + (x 1) 5

y = 8 + 5x 5 (Total fare is given to be y)

y = 5x + 3

5x y + 3 = 0

This is the required linear equation.

pls mark as brilliant

Discussion

8.	FACTORISE(2m-5)(3a-2b) -(2m-5)(2b-3a) ?
Answer» ANSWER: [2m-5][3a-2b]-[2m-5][2b-3a] [2m-5][3a-2b]-[2m-5]{-[3a-2b]} [2m-5][3a-2b][1+1] 2[2m-5][3a-2b] Step-by-step EXPLANATION:

8.

FACTORISE(2m-5)(3a-2b) -(2m-5)(2b-3a) ?

Answer»

ANSWER:

[2m-5][3a-2b]-[2m-5][2b-3a]

[2m-5][3a-2b]-[2m-5]{-[3a-2b]}

[2m-5][3a-2b][1+1]

2[2m-5][3a-2b]

Step-by-step EXPLANATION:

Discussion

9.	The perimeter of rectangle carpet is 220m. It's length is 60 m. Find its breathd
Answer» ANSWER: Since It is given that PERIMETER of RECTANGLE is 220m and length = 60m l=60m Perimeter = 220m 2(l+b) = 220m l+b = 110 b = 110 - 60 b= 50 Step-by-step explanation: Hope it helps U

9.

The perimeter of rectangle carpet is 220m. It's length is 60 m. Find its breathd

Answer»

ANSWER:

Since It is given that PERIMETER of RECTANGLE is 220m and

length = 60m

l=60m

Perimeter = 220m

2(l+b) = 220m

l+b = 110

b = 110 - 60

b= 50

Step-by-step explanation:

Hope it helps U

Discussion

10.	Find the value in percentage : 25% of 50% of 100%25 x 502
Answer» ANSWER: 25/100 × 50/100 × 100/100 1/4 × 1/2 × 1 1/8 1/8 × 100 12.5% is answer and, 25 × 50 (25 × 50)/100 25/2 12.5% is answer and, 2 2/100 1/50 0.02% *THANKS* *for* *yours*....

10.

Find the value in percentage : 25% of 50% of 100%25 x 502

Answer»

ANSWER:

25/100 × 50/100 × 100/100

1/4 × 1/2 × 1

1/8

1/8 × 100

12.5%

is answer

and,

25 × 50

(25 × 50)/100

25/2

12.5%

is answer

and,

2

2/100

1/50

0.02%

THANKS for yours....

Discussion

11.	The perimeter of a square is 64cm . What is the length of the diagonal.
Answer» ANSWER:So, the SIDE will be 16cm. Then by using Pythagoras theorem, Diagonal²=2×16² Diagonal=16√2 cm. I HOPE it HELPS you.☺ Step-by-step EXPLANATION:

11.

The perimeter of a square is 64cm . What is the length of the diagonal.

Answer»

ANSWER:So, the SIDE will be 16cm.

Then by using Pythagoras theorem,

Diagonal²=2×16²

Diagonal=16√2 cm.

I HOPE it HELPS you.☺

Step-by-step EXPLANATION:

Discussion

12.	Find the number of days between teacher day and children's day
Answer» Answer: TEACHER's day is on 5 September Children's day is on 14 November Number of DAYS between them = 39 days Plz MARK brainliest Step-by-step explanation:

12.

Find the number of days between teacher day and children's day

Answer»

Answer:

TEACHER's day is on 5 September

Children's day is on 14 November

Number of DAYS between them = 39 days

Plz MARK brainliest

Step-by-step explanation:

Discussion

13.	A truck covers a distance of 384 km at a certain speed. If the speed is decreased by 16 km/h. it will take 2 hours more to cover thesame distance. 75% of its original speed (in km/h) is:
Answer» Answer: 75% of original speed is =48 km /hr Step-by-step explanation: Given, TRUCK distance covered 384 km. Speed of truck is =x km/hr If speed of truck is decrease by 16 km/hr it will take 2 hours more to cover the same distance. Find out the 75% of original speed of truck. Solution, New speed of truck is =(x-16)km/hr $384/\left ( x-16 \right )-384/x=2$ $384\left ( 1/\left ( x-16 \right )-1/x \right )=2$ $384\left ( x-\left ( x-16 \right ) \right )/\left ( x\left ( x-16 \right ) \right )=2$ $384\left ( x-x+16 \right )=2\left ( x^{2}-16x \right )$ $192\times 16=x^{2}-16x$ $x^{2}-16x-3072=0$ $x^{2}-64x+48x-3072=0$ $x\left ( x-64 \right )+48\left ( x-64 \right )=0$ $\left ( x-64 \right )\left ( x+48 \right )=0$ $x-64=0$ $x=64$ km/hr or $x+48=0$ $x=-48$ km/hr (Reject it because x=-48 km/hr NEVER possible .Speed cannot be NEGATIVE) Calculate 75% of original speed = $x\times 75%$ % = $x\times 3/4$ $64\times 3/4=48km/hr$

13.

A truck covers a distance of 384 km at a certain speed. If the speed is decreased by 16 km/h. it will take 2 hours more to cover thesame distance. 75% of its original speed (in km/h) is:

Answer»

Answer:

75% of original speed is =48 km /hr

Step-by-step explanation:

Given,

TRUCK distance covered 384 km.

Speed of truck is =x km/hr

If speed of truck is decrease by 16 km/hr it will take 2 hours more to cover the same distance.

Find out the 75% of original speed of truck.

Solution,

New speed of truck is =(x-16)km/hr

$384/\left ( x-16 \right )-384/x=2$

$384\left ( 1/\left ( x-16 \right )-1/x \right )=2$

$384\left ( x-\left ( x-16 \right ) \right )/\left ( x\left ( x-16 \right ) \right )=2$

$384\left ( x-x+16 \right )=2\left ( x^{2}-16x \right )$

$192\times 16=x^{2}-16x$

$x^{2}-16x-3072=0$

$x^{2}-64x+48x-3072=0$

$x\left ( x-64 \right )+48\left ( x-64 \right )=0$

$\left ( x-64 \right )\left ( x+48 \right )=0$

$x-64=0$

$x=64$ km/hr

or

$x+48=0$

$x=-48$ km/hr (Reject it because x=-48 km/hr NEVER possible .Speed cannot be NEGATIVE)

Calculate 75% of original speed

= $x\times 75%$ %

= $x\times 3/4$

$64\times 3/4=48km/hr$

Discussion

14.	Difference between moment animals and plant
Answer» ANSWER: PLANET .................

14.

Difference between moment animals and plant

Answer»

ANSWER:

PLANET .................

Discussion

15.	Integrate 1/1+tanx^1/2 dx from pie/8 to 3pie/8
Answer» Answer: the new Zealand INTERNATIONAL was the only PLAYER in humans who had a GOOD chance to play for boys and they were not the FIRST to wear the ball and the ball had to wear the same gear as he was at his BEST in humans and he had to go back

15.

Integrate 1/1+tanx^1/2 dx from pie/8 to 3pie/8

Answer»

Answer:

the new Zealand INTERNATIONAL was the only PLAYER in humans who had a GOOD chance to play for boys and they were not the FIRST to wear the ball and the ball had to wear the same gear as he was at his BEST in humans and he had to go back

Discussion

16.	(10) The legs of a right triangle are in theratio 3 : 4 and its area is 1014 cm.Find the lengths of its sides and itsperimeter.
Answer» $\huge{\boxed{\mathtt{\red{Answer:-}}}}$ $\sf\underline{\blue{\:\:\: <klux>GIVEN</klux>:-\:\:\:}}$ Sides of ∆ =3:4 AREA of ∆= 1014sq.cm Let the side of ∆ be X Then 3x and 4x $\boxed{\sf{Area\:of\triangle=\dfrac{1}{2}\times base\times height}}$ $\sf\underline{\red{\:\:\: A.T.Q:-\:\:\:}}$ $\sf\implies 1014=\dfrac{1}{2}\times 3x\times 4x\\ \\ \sf\implies 1014\times 2= 12x{}^{2}\\ \\ \sf\implies 2028=12x{}^{2}\\ \\ \sf\implies \cancel{\dfrac{2028}{12}}=x{}^{2}\\ \\ \sf\implies 169=x{}^{2}\\ \\ \sf\implies \sqrt{169}=x\\ \\ \sf\implies {\blue{x=13}}$ Now sides of ∆ $\sf\bullet 3\times 13= 39cm\\ \\ \sf\bullet 4\times 13= 52cm$ We have to FIND the perimeter of ∆ .Two sides are given find the 3rd side of ∆ by Pythagoras theorm $\boxed{\sf{Hypotenuse {}^{2}=Perpendicular {}^{2}+base{}^{2}}}$ $\sf\implies H{}^{2}= (39){}^{2}+(52){}^{2}\\ \\ \sf\implies H{}^{2}=1521+2704\\ \\ \sf\implies H{}^{2}= 4225\\ \\ \sf\implies H=\sqrt{4225}\\ \\ \sf\implies H=65cm$ Now the perimeter of ∆ $\boxed{\sf{\purple{Perimeter\:of\:\triangle=Sum\:of\:All\:sides}}}$ $\sf{Given:-}\begin{cases}\sf{Sides\:of\: triangle}\\ \sf{39cm\:\:,52cm\:\:,65cm}\end{cases}$ $\sf\implies Perimeter=39+52+65\\ \\ \sf\implies Perimeter= 156cm$ $\underline{\boxed{\sf{Perimeter\:of\triangle=156cm}}}$

16.

(10) The legs of a right triangle are in theratio 3 : 4 and its area is 1014 cm.Find the lengths of its sides and itsperimeter.

Answer»

$\huge{\boxed{\mathtt{\red{Answer:-}}}}$

$\sf\underline{\blue{\:\:\: <klux>GIVEN</klux>:-\:\:\:}}$

Sides of ∆ =3:4

AREA of ∆= 1014sq.cm

Let the side of ∆ be X

Then 3x and 4x

$\boxed{\sf{Area\:of\triangle=\dfrac{1}{2}\times base\times height}}$

$\sf\underline{\red{\:\:\: A.T.Q:-\:\:\:}}$

$\sf\implies 1014=\dfrac{1}{2}\times 3x\times 4x\\ \\ \sf\implies 1014\times 2= 12x{}^{2}\\ \\ \sf\implies 2028=12x{}^{2}\\ \\ \sf\implies \cancel{\dfrac{2028}{12}}=x{}^{2}\\ \\ \sf\implies 169=x{}^{2}\\ \\ \sf\implies \sqrt{169}=x\\ \\ \sf\implies {\blue{x=13}}$

Now sides of ∆

$\sf\bullet 3\times 13= 39cm\\ \\ \sf\bullet 4\times 13= 52cm$

We have to FIND the perimeter of ∆

.Two sides are given find the 3rd side of ∆ by Pythagoras theorm

$\boxed{\sf{Hypotenuse {}^{2}=Perpendicular {}^{2}+base{}^{2}}}$

$\sf\implies H{}^{2}= (39){}^{2}+(52){}^{2}\\ \\ \sf\implies H{}^{2}=1521+2704\\ \\ \sf\implies H{}^{2}= 4225\\ \\ \sf\implies H=\sqrt{4225}\\ \\ \sf\implies H=65cm$

Now the perimeter of ∆

$\boxed{\sf{\purple{Perimeter\:of\:\triangle=Sum\:of\:All\:sides}}}$

$\sf{Given:-}\begin{cases}\sf{Sides\:of\: triangle}\\ \sf{39cm\:\:,52cm\:\:,65cm}\end{cases}$

$\sf\implies Perimeter=39+52+65\\ \\ \sf\implies Perimeter= 156cm$

$\underline{\boxed{\sf{Perimeter\:of\triangle=156cm}}}$

Discussion

17.	US OT the above questions, did you verify the theoons, did you verify the theorem of equal ratios?(1) Fill in the blanks in the following statements.Ex (1) Fill in the6(i)37(ii)=--5x - 3y + 4zSolution : (i)=3 5 4b 4a +9b 4a +9b 4a +9b37 4x3+9x7 12+63 755xx -3x y 4x2= - = - = - =-5x3 - 3x5 4x4– 5x _ -3y _ Az15 -15 165x - 3y + 4z----(by the theorem of equal ratio)15-15+165x - 3y + 4z16
Answer» ANSWER: Not CLEAR?? The QUESTION is a MESS.

17.

US OT the above questions, did you verify the theoons, did you verify the theorem of equal ratios?(1) Fill in the blanks in the following statements.Ex (1) Fill in the6(i)37(ii)=--5x - 3y + 4zSolution : (i)=3 5 4b 4a +9b 4a +9b 4a +9b37 4x3+9x7 12+63 755xx -3x y 4x2= - = - = - =-5x3 - 3x5 4x4– 5x _ -3y _ Az15 -15 165x - 3y + 4z----(by the theorem of equal ratio)15-15+165x - 3y + 4z16

Answer»

ANSWER:

Not CLEAR??

The QUESTION is a MESS.

Discussion

18.	1. René Descartes was aa) Pronch mathematicianth Indian mathematicianc) Russian mathematicianIch British mathematician
Answer» ANSWER: Pronch Step-by-step EXPLANATION:

18.

1. René Descartes was aa) Pronch mathematicianth Indian mathematicianc) Russian mathematicianIch British mathematician

Answer»

ANSWER:

Pronch

Step-by-step EXPLANATION:

Discussion

19.	• Ranu needs 1,97,018.63 after 1 years. How much money should she invest to get required money, ifinterest is calculated compounded quarterly at the rate of 12% p.a.?
Answer» Step-by-step explanation: 197018.63÷12=16418.2192 SO, *SHE* *REQUIRE* ₹16418.2192 *BECAUSE* 16418.2192×12 =*197018.63* SO *THE* *ANS* IS ₹*16418.2192*

19.

• Ranu needs 1,97,018.63 after 1 years. How much money should she invest to get required money, ifinterest is calculated compounded quarterly at the rate of 12% p.a.?

Answer»

Step-by-step explanation:

197018.63÷12=16418.2192

SO, SHE REQUIRE ₹16418.2192

BECAUSE 16418.2192×12

=197018.63

SO THE ANS IS ₹16418.2192

Discussion

20.	Re.18. Nidhi purchased a dress which was on sale at 15% off the original price. The original price of the dress was 660.(a) How much money did she save with this discount?(b) How much money did she pay for the dress?
Answer» A.15/100*660=99 B.660-99=561 Please MARK as BRAINLIEST

Discussion

21.	Where should i go isro or nasa or software engineering?
Answer» Answer: Try NASA or SOFTWARE engineering Hope this HELPS U

21.

Where should i go isro or nasa or software engineering?

Answer»

Answer:

Try NASA or SOFTWARE engineering

Hope this HELPS U

Discussion

22.	What sum will amount to Rs 5525 at 10% p.a. simple interest in 3 years?
Answer» Answer: By given, Amount=5525 rate=10% time=3 years To FIND:Principal AMOUNT=PRINCIPAL +SI SI =AMOUNT-PRINCIPAL SI=5525-P $simple \: interest = \frac{prt}{100} \\ 5525 - p = \frac{p \times 10 \times 3}{100} \\ 5525 - p = \frac{3p}{10} \\ 5525 = \frac{3p + 10p}{10} \\ 5525 \times 10 = 13p \\ p = <klux>4250</klux>$ So principal is 4250 rupees Please mark it as brainliest

22.

What sum will amount to Rs 5525 at 10% p.a. simple interest in 3 years?

Answer»

Answer:

By given, Amount=5525

rate=10%

time=3 years

To FIND:Principal

AMOUNT=PRINCIPAL +SI

SI =AMOUNT-PRINCIPAL

SI=5525-P

$simple \: interest = \frac{prt}{100} \\ 5525 - p = \frac{p \times 10 \times 3}{100} \\ 5525 - p = \frac{3p}{10} \\ 5525 = \frac{3p + 10p}{10} \\ 5525 \times 10 = 13p \\ p = <klux>4250</klux>$

So principal is 4250 rupees

Please mark it as brainliest

Discussion

23.	5x^2=4x+7 using completing square method
Answer» ANSWER: The SOLUTION for this QUESTION is SOLVED above

23.

5x^2=4x+7 using completing square method

Answer»

ANSWER:

The SOLUTION for this QUESTION is SOLVED above

Discussion

24.	How many two digit nmbers are divisible by 5 ?
Answer» Answer: The number that ends with 0 or 5 is DIVISIBLE by 5.. Step-by-step explanation: EXAMPLE can be 10,15,20,25,30...ETC.

24.

How many two digit nmbers are divisible by 5 ?

Answer»

Answer:

The number that ends with 0 or 5 is DIVISIBLE by 5..

Step-by-step explanation:

EXAMPLE can be 10,15,20,25,30...ETC.

Discussion

25.	Find the wole quantity of 8percent of it is rs1080
Answer» I didnt UNDERSTAND sorrry

Discussion

26.	18. गुणा करें।(क) 15x6(घ) 65x10019. भाग दें।(क)72+9(घ) 756+7
Answer» Answer: 15×6=90 Step-by-step EXPLANATION: and 65×100=650000

26.

18. गुणा करें।(क) 15x6(घ) 65x10019. भाग दें।(क)72+9(घ) 756+7

Answer»

Answer:

15×6=90

Step-by-step EXPLANATION:

and 65×100=650000

Discussion

27.	Please guys help me to do this with a pic
Answer» ANSWER: USE the formula CP = CP * 100/100+ or - gain% or LOSE% SP = 100+ or -gain% or lose%/100 * CP

27.

Please guys help me to do this with a pic

Answer»

ANSWER:

USE the formula

CP = CP * 100/100+ or - gain% or LOSE%

SP = 100+ or -gain% or lose%/100 * CP

Discussion

28.	TOY PAU.18. If a and B are zeroes of the polynomial f(x)= x-x-k, such that a - B = 9, find k.
Answer» ANSWER: Step-by-step EXPLANATION:

28.

TOY PAU.18. If a and B are zeroes of the polynomial f(x)= x-x-k, such that a - B = 9, find k.

Answer»

ANSWER:

Step-by-step EXPLANATION:

Discussion

29.	Solve x,y if a=(2/x 3/4), b= (5/4 y/2) and 2a+b= (9/0 1/10)
Answer» ANSWER: fy9ycichihicigcigxigxxgxichixgxgcgixigxigcigcigcigcigcigcigxigxgixgixgixigxgixigxigxgxj Step-by-step EXPLANATION: it is CORRECT

29.

Solve x,y if a=(2/x 3/4), b= (5/4 y/2) and 2a+b= (9/0 1/10)

Answer»

ANSWER:

fy9ycichihicigcigxigxxgxichixgxgcgixigxigcigcigcigcigcigcigxigxgixgixgixigxgixigxigxgxj

Step-by-step EXPLANATION:

it is CORRECT

Discussion

30.	a field is in the form of a right triangle with sides 90 m and 120 m respectively containing the right angle. calculate the cost of levelling the fiels at the rate of ₹12 per square m.
Answer» Answer: Step-by-step explanation: $ab^{2} +bc^{2} =ac^{2}$ The hypotenuse = 130 area=1/2 * base * HEIGHT =1/2 * 120 * 90 =5400 METRE SQUARE cost = 5400 * 12 = ₹64800

30.

a field is in the form of a right triangle with sides 90 m and 120 m respectively containing the right angle. calculate the cost of levelling the fiels at the rate of ₹12 per square m.

Answer»

Answer:

Step-by-step explanation:

$ab^{2} +bc^{2} =ac^{2}$

The hypotenuse = 130

area=1/2 * base * HEIGHT

=1/2 * 120 * 90

=5400 METRE SQUARE

cost = 5400 * 12

= ₹64800

Discussion

31.	Yox 26 x 55121 8. 117 simpify
Answer» ANSWER: Step-by-step EXPLANATION:

31.

Yox 26 x 55121 8. 117 simpify

Answer»

ANSWER:

Step-by-step EXPLANATION:

Discussion

32.	-geneIf non parallel sides of a trapezium are equal prove it is cyclic
Answer» SINCE the adjacent angels of a QUADRILATERAL are supplementary THEREFORE it can be proved as CYCLIC.

32.

-geneIf non parallel sides of a trapezium are equal prove it is cyclic

Answer»

SINCE the adjacent angels of a QUADRILATERAL are supplementary THEREFORE it can be proved as CYCLIC.

Discussion

33.	How many two digit numbers are divisible by 5 such that reminder is 1.
Answer» Answer: 5 ×10 Step-by-step explanation: 5×10 it is DIVISIBLE by 5

33.

How many two digit numbers are divisible by 5 such that reminder is 1.

Answer»

Answer:

5 ×10

Step-by-step explanation:

5×10

it is DIVISIBLE by 5

Discussion

34.	What is ! in mathematics
Answer» ANSWER: ! is USED as FACTORIAL..

34.

What is ! in mathematics

Answer»

ANSWER:

! is USED as FACTORIAL..

Discussion

35.	A man standing at the top of the tower observes on either side of the tower at two points at angle of depression 56 degrees and 74 degrees underground draw the correct diagram of the above information
Answer» $Let \: A\: be \:the \: position \:of \:the \:man \\standing \:at \:the \:top \:of \:the \: Tower.$ $Let\: D \:and\:B \:be \: two \:points \: on \:either\\side \:of \:the \: tower\:such \:that \:the \:angles \\of \: depression \:at \: B \:and \: D \: are \: 74\degree \\and \:56\degree \: respectively .$ $Height \:of \:the \: Tower = AC$ $Distance \: between \:the \:two \:points = BD$ •••♪

35.

A man standing at the top of the tower observes on either side of the tower at two points at angle of depression 56 degrees and 74 degrees underground draw the correct diagram of the above information

Answer»

$Let \: A\: be \:the \: position \:of \:the \:man \\standing \:at \:the \:top \:of \:the \: Tower.$

$Let\: D \:and\:B \:be \: two \:points \: on \:either\\side \:of \:the \: tower\:such \:that \:the \:angles \\of \: depression \:at \: B \:and \: D \: are \: 74\degree \\and \:56\degree \: respectively .$

$Height \:of \:the \: Tower = AC$

$Distance \: between \:the \:two \:points = BD$

•••♪

Discussion

36.	F(x)=2x² and g(x)=3x+1 find:1. f(x)+g(x)2. f(x)- g(x)3. f(g(x))4. f(x)²5. f(x)³-g(x)+g(x)²
Answer» I) (X+1)(2x+1) 3)2x^2(3x+1) 4)4x^4

36.

F(x)=2x² and g(x)=3x+1 find:1. f(x)+g(x)2. f(x)- g(x)3. f(g(x))4. f(x)²5. f(x)³-g(x)+g(x)²

Answer»

I) (X+1)(2x+1)

3)2x^2(3x+1)

4)4x^4

Discussion

37.	A pencil has one curved and two plane surface
Answer» What is the QUESTION

37.

A pencil has one curved and two plane surface

Answer»

What is the QUESTION

Discussion

38.	If the diagonals of rectangle are 2x+7 and 5x-2 find its length
Answer» Answer: 9.19 Step-by-step explanation: by PYTHAGORAS theoram.first FIND X value and SUBSTITUTE in diagonal. then do pythagoras theorem to find length from TRIANGLE aob

38.

If the diagonals of rectangle are 2x+7 and 5x-2 find its length

Answer»

Answer:

9.19

Step-by-step explanation:

by PYTHAGORAS theoram.first FIND X value and SUBSTITUTE in diagonal. then do pythagoras theorem to find length from TRIANGLE aob

Discussion

39.	What is the value of u 80
Answer» The VALUE of what U

Discussion

40.	What in the missing number of 2
Answer» I did NT UNDERSTAND the ....PLS EDIT I'll HELP

40.

What in the missing number of 2

Answer»

I did NT UNDERSTAND the ....PLS EDIT I'll HELP

Discussion

41.	The diagonal distance of square shaped ground is 60 meter ,then the area of the ground is
Answer» Answer: AREA of the ground is approximately 1800 m^2 Step-by-step EXPLANATION: DIAGONAL of a suarq =√2a √2a = 60 a = 42. 4264..... area of a square =a^2 = ( 42.4264) ^2 = 1800 cm square

41.

The diagonal distance of square shaped ground is 60 meter ,then the area of the ground is

Answer»

Answer:

AREA of the ground is approximately 1800 m^2

Step-by-step EXPLANATION:

DIAGONAL of a suarq =√2a

√2a = 60

a = 42. 4264.....

area of a square =a^2

= ( 42.4264) ^2

= 1800 cm square

Discussion

42.	Shavi purchased some books for 120 rupees if we purchase a 3 morefor some account each book would have low cost to less find the number of books
Answer» ANSWER: UNABLE to answer SORRY

42.

Shavi purchased some books for 120 rupees if we purchase a 3 morefor some account each book would have low cost to less find the number of books

Answer»

ANSWER:

UNABLE to answer SORRY

Discussion

43.	If a certain number, x, is increased by 7, it will be equal to 5 less than twice that same number. The correctequation for the above sentence is[1] 7x = −5(2x).
Answer» Answer: The correct equation is: x + 7 = 2x - 5. Step-by-step EXPLANATION: Let the number be x. On INCREASING the number x by 7, the equation is: x + 7. The resultant number EQUALS to 5 less than twice the number x. The final equation is: x + 7 = 2x - 5.

43.

If a certain number, x, is increased by 7, it will be equal to 5 less than twice that same number. The correctequation for the above sentence is[1] 7x = −5(2x).

Answer»

Answer:

The correct equation is: x + 7 = 2x - 5.

Step-by-step EXPLANATION:

Let the number be x.

On INCREASING the number x by 7, the equation is: x + 7.

The resultant number EQUALS to 5 less than twice the number x.

The final equation is:

x + 7 = 2x - 5.

Discussion

44.	In the figure given below, find the values of x and y with diagram
Answer» ANSWER: Where is the FIGURE? Step-by-step EXPLANATION:

44.

In the figure given below, find the values of x and y with diagram

Answer»

ANSWER:

Where is the FIGURE?

Step-by-step EXPLANATION:

Discussion

45.	Identify the terms and their factorsShow the terms and factors by tree(a) x - 3 (b) 1+(d) 5xy2 + 7x²y. e) - ab
Answer» MAI TUMKO KAL ANSWER deti hu .

45.

Identify the terms and their factorsShow the terms and factors by tree(a) x - 3 (b) 1+(d) 5xy2 + 7x²y. e) - ab

Answer»

MAI TUMKO KAL ANSWER deti hu .

Discussion

46.	शून्य में 60 का भाग देने पर भाज्य, भाजक, भागफल एवं शेषफलक्रमशः है-(a)0, 60, 0, 0(b) 60, 0, 1,0(c)0, 60, 9, 1 .(d) 60, 0, 0,1
Answer» (a ) यह आपका उत्तर कृपा कर मुझे लाइक करें

46.

शून्य में 60 का भाग देने पर भाज्य, भाजक, भागफल एवं शेषफलक्रमशः है-(a)0, 60, 0, 0(b) 60, 0, 1,0(c)0, 60, 9, 1 .(d) 60, 0, 0,1

Answer»

(a ) यह आपका उत्तर

कृपा कर मुझे लाइक करें

Discussion

47.	F. How many two-digit numbers are divisible by 5 ?
Answer» Answer: 18 PLZ MARK brainliest Step-by-step EXPLANATION:

47.

F. How many two-digit numbers are divisible by 5 ?

Answer»

Answer:

18

PLZ MARK brainliest

Step-by-step EXPLANATION:

Discussion

48.	19/w that:-T-diameter of the planets Jupiter a
Answer» I didnt UNDERSTAND The QUESTION

48.

19/w that:-T-diameter of the planets Jupiter a

Answer»

I didnt UNDERSTAND

The QUESTION

Discussion

49.	9. What is the value of cot? 0 - -sin09
Answer» Step-by-step EXPLANATION: COT0 = COS0 / sin0 cos²0/ sin²0 - 1/sin²0 = cos²0 - 1 / sin²0 = -sin²0 / sin²0 = -1 PLEASE MARK AS BRAINIEST

49.

9. What is the value of cot? 0 - -sin09

Answer»

Step-by-step EXPLANATION:

COT0 = COS0 / sin0

cos²0/ sin²0 - 1/sin²0

= cos²0 - 1 / sin²0

= -sin²0 / sin²0

= -1

PLEASE MARK AS BRAINIEST

Discussion

50.	a cylinder whose height is two third of its diameter has the same volume as the sphere of radius21 cm.find csa of cylinder
Answer» Answer: *Hye♥♥ Here* is *the* *answer. HOPE* it *HELPED* *you. PLEASE* *MARK* it *the* *brain* *list* *answer*.

50.

a cylinder whose height is two third of its diameter has the same volume as the sphere of radius21 cm.find csa of cylinder

Answer»

Answer:

Hye♥♥

Here is the answer.

HOPE it HELPED you.

PLEASE MARK it the brain list answer.

Discussion

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शून्य में 60 का भाग देने पर भाज्य, भाजक, भागफल एवं शेषफलक्रमशः है-(a)0, 60, 0, 0(b) 60, 0, 1,0(c)0, 60, 9, 1 .(d) 60, 0, 0,1

F. How many two-digit numbers are divisible by 5 ?

19/w that:-T-diameter of the planets Jupiter a

9. What is the value of cot? 0 - -sin09

a cylinder whose height is two third of its diameter has the same volume as the sphere of radius21 cm.find csa of cylinder