332354 + Interview Questions in Secondary School in Math

1.	One quater means in maths
Answer» ANSWER: A QUARTER is ONE out of four EQUAL parts. It can also be WRITTEN as 25% or 0.25.

1.

One quater means in maths

Answer»

ANSWER:

A QUARTER is ONE out of four EQUAL parts. It can also be WRITTEN as 25% or 0.25.

Discussion

2.	If x=2√3+2 find 1/x and x+1/x
Answer» Answer:{(√X) - (1/√x)}^2 = x + 1/x - 2 x= 3–2√2 1/x= 3+2√2 (on rationalising) put the VALUES in above equation 3–2√2+3+2√2–2 =4 {(√x) - (1/√x)}^2 = 4 taking ROOT -2,+2 Step-by-step explanation:

2.

If x=2√3+2 find 1/x and x+1/x

Answer»

Answer:{(√X) - (1/√x)}^2 = x + 1/x - 2

x= 3–2√2

1/x= 3+2√2 (on rationalising)

put the VALUES in above equation

3–2√2+3+2√2–2

=4

{(√x) - (1/√x)}^2 = 4

taking ROOT -2,+2

Step-by-step explanation:

Discussion

3.	17. Let f(x)=X-1Then, Dom (f) = ?X-4a) [1,00]b) [4,00]Les 100,-1]U14,00d) None of these
Answer» SRY do no .........sry Step-by-step EXPLANATION: ........,........GOOD NIGHT

3.

17. Let f(x)=X-1Then, Dom (f) = ?X-4a) [1,00]b) [4,00]Les 100,-1]U14,00d) None of these

Answer»

SRY do no .........sry

Step-by-step EXPLANATION:

........,........GOOD NIGHT

Discussion

4.	The standard from of the number 12345 is
Answer» Answer: 10000+2000+300+40+5 Step-by-step EXPLANATION: We have the NUMBER 12345. STANDARD FORM of this number is 10000+2000+300+40+5

4.

The standard from of the number 12345 is

Answer»

Answer:

10000+2000+300+40+5

Step-by-step EXPLANATION:

We have the NUMBER 12345. STANDARD FORM of this number is 10000+2000+300+40+5

Discussion

5.	The perimeter of a square field is 96 m, find the side of the square
Answer» ANSWER: PERIMETER of a SQUARE =4s 4s=96 s=96/4 =24

5.

The perimeter of a square field is 96 m, find the side of the square

Answer»

ANSWER:

PERIMETER of a SQUARE =4s

4s=96

s=96/4 =24

Discussion

6.	Factories9a^4+36please answer it correctly .My exam is going on .
Answer» Step-by-step explanation: 9a^4+36 =(3a^2)^2+(6)^2 =(3a^2+6)^2-2×3a^2×6 =(3a^2+6)^2-36a^2

6.

Factories9a^4+36please answer it correctly .My exam is going on .

Answer»

Step-by-step explanation:

9a^4+36

=(3a^2)^2+(6)^2

=(3a^2+6)^2-2×3a^2×6

=(3a^2+6)^2-36a^2

Discussion

7.	Show that 5, V3 is irrational, given that V3 is irrational.
Answer» Answer: IDENTIFY the poetic DEVICES in these lines- "But presently up spoke LITTLE dog Mustard, I’d have been TWICE as BRAVE if I hadn’t been flustered"

7.

Show that 5, V3 is irrational, given that V3 is irrational.

Answer»

Answer:

IDENTIFY the poetic DEVICES in these lines-

"But presently up spoke LITTLE dog Mustard, I’d have been TWICE as BRAVE if I hadn’t been flustered"

Discussion

8.	in the triangle pqr and F are the point on the side PQ and PR respectively such that year parallel to QR if equals to 4 cm is equal to 4.5 cm and PF equals to 8 cm then find rf class 10th
Answer» ANSWER: thank-you for FREE oounts

8.

in the triangle pqr and F are the point on the side PQ and PR respectively such that year parallel to QR if equals to 4 cm is equal to 4.5 cm and PF equals to 8 cm then find rf class 10th

Answer»

ANSWER:

thank-you for FREE oounts

Discussion

9.	If α, β are roots of the equation 2x2 – 6x + a = 0 and 2 α + 5 β = 12, find the value of a.
Answer» ANSWER: SORRY this is out of my MIND sorry once again

9.

If α, β are roots of the equation 2x2 – 6x + a = 0 and 2 α + 5 β = 12, find the value of a.

Answer»

ANSWER:

SORRY this is out of my MIND sorry once again

Discussion

10.	Plzzz answer the above questions
Answer» chupa LA de bta DU ga aur MUTH b MAAR de meri

10.

Plzzz answer the above questions

Answer»

chupa LA de bta DU ga aur MUTH b MAAR de meri

Discussion

11.	Total surface area of a cylinder whose diameter is 14cm and height is 7cm
Answer» ANSWER: GOOD EVENING abcdefghijk

11.

Total surface area of a cylinder whose diameter is 14cm and height is 7cm

Answer»

ANSWER:

GOOD EVENING abcdefghijk

Discussion

12.	. If sin = 1/2, then show that 3cos - 4cos3 = 0.
Answer» Answer: GIVEN sinθ= 2 1 ⟹θ= 6 π LHS =3cosθ−4cos 3 θ=3cos 6 π −4cos 3 6 π = 2 3 3 −4( 2 3 ) 3 = 2 3 3 −4× 8 3 3 = 2 3 3 − 2 3 3 =

12.

. If sin = 1/2, then show that 3cos - 4cos3 = 0.

Answer»

Answer:

GIVEN sinθ=

2

1

⟹θ=

6

π

LHS

=3cosθ−4cos

3

θ=3cos

6

π

−4cos

3

6

π

=

2

3

−4(

2

3

)

3

=

2

3

−4×

8

3

=

2

3

−

2

3

=

Discussion

13.	General sales tax is a dash
Answer» Answer: SALES tax is an additional amount of money you pay based on a percentage of the selling price of goods and SERVICES that are PURCHASED. For example, if you purchase a new television for $400 and live in an AREA where the sales tax is 7%, you would pay $28 in sales tax. Your total bill would be $428. Step-by-step explanation: please follow me and mark me brainliest

13.

General sales tax is a dash

Answer»

Answer:

SALES tax is an additional amount of money you pay based on a percentage of the selling price of goods and SERVICES that are PURCHASED. For example, if you purchase a new television for $400 and live in an AREA where the sales tax is 7%, you would pay $28 in sales tax. Your total bill would be $428.

Step-by-step explanation:

please follow me and mark me brainliest

Discussion

14.	400 is greater than 300 by 100/3%. true or false
Answer» ANSWER: YES this is TRUE...........

14.

400 is greater than 300 by 100/3%. true or false

Answer»

ANSWER:

YES this is TRUE...........

Discussion

15.	Draw the graph of x² - x - 2 and find the zeros.
Answer» ANSWER: Step-by-step EXPLANATION.......

15.

Draw the graph of x² - x - 2 and find the zeros.

Answer»

ANSWER:

Step-by-step EXPLANATION.......

Discussion

16.	5. Record the following transaction in journal bank at jaineetsinh.a. Introduced capital RS.100000 and commenced business.b. Goods cet Rs. 5000 Purchased from jhanviba.c. Paid income tax Rs. 1000.d. Commission received Rs. 200e. Goods sold for Cash Rs. 3000
Answer» ANSWER: a. Bank a/C ➖➖➖➖ Dr. 1,00,000 To capital a/c ➖➖➖ 1,00,000. (being the amount invested by jaineetsinh in the business capital). B. Purchases a/c ➖➖➖➖ Dr. 5,000 To Jhanviba a/c ➖➖➖➖ 5,000 (being the goods purchased from jhanviba on credit) C. DRAWING a/c➖➖➖➖Dr. 1,000 To cash a/c ➖➖➖➖➖ 1,000 (being the income tax paid) d. Cash a/c ➖➖➖➖➖ Dr. 200 To COMMISSION a/c ➖➖➖200 (Being commission received) e. Cash a/c ➖➖➖➖ Dr. 3,000 To sales a/c ➖➖➖➖ 3,000 (Being goods sold and cash received). Thanks

16.

5. Record the following transaction in journal bank at jaineetsinh.a. Introduced capital RS.100000 and commenced business.b. Goods cet Rs. 5000 Purchased from jhanviba.c. Paid income tax Rs. 1000.d. Commission received Rs. 200e. Goods sold for Cash Rs. 3000

Answer»

ANSWER:

a. Bank a/C ➖➖➖➖ Dr. 1,00,000

To capital a/c ➖➖➖ 1,00,000.

(being the amount invested by jaineetsinh in the business capital).

B. Purchases a/c ➖➖➖➖ Dr. 5,000

To Jhanviba a/c ➖➖➖➖ 5,000

(being the goods purchased from jhanviba on credit)

C. DRAWING a/c➖➖➖➖Dr. 1,000

To cash a/c ➖➖➖➖➖ 1,000

(being the income tax paid)

d. Cash a/c ➖➖➖➖➖ Dr. 200

To COMMISSION a/c ➖➖➖200

(Being commission received)

e. Cash a/c ➖➖➖➖ Dr. 3,000

To sales a/c ➖➖➖➖ 3,000

(Being goods sold and cash received).

Thanks

Discussion

17.	A motorboat covers a distance of 16km upstream and 24km downstream in 6 hours. In thesame time it covers a distance of 12 km upstream and 36km downstream. Find the speed of the boat in still water and that of the stream. plz send pics of ur page
Answer» Answer: Speed of the stream = 4 km/hr Speed of motorboat in still water = 8 km/hr Step-by-step EXPLANATION: Given: Motorboat covers a distance of 16 km UPSTREAM and 24 km DOWNSTREAM in 6 hours It covers a distance of 12 km upstream and 36 km downstream again in 6 hours To FIND: Speed of the boat in still water Speed of the stream Solution: Let the speed of the motorboat be x km/hr Let speed of stream be y km/hr We KNOW that, Speed while travelling upstream = (x - y) km/hr Speed while travelling downstream = (x + y) km/hr Also we know that, Time = Distance/Speed By the first case given, $\tt \dfrac{16}{(x-y)} +\dfrac{24}{x+y} =6----(1)$ Now by the second case given, $\tt \dfrac{12}{(x-y)} +\dfrac{36}{x+y} =6---(2)$ Let us assume that 1/(x + y) = p, 1/(x - y) = q Therefore equation 1 changes to, 16q + 24p = 6------(3) 12q + 36p = 6------(4) Multiply equation 3 by 3 and equation 4 by 4 48q + 72p = 18---(5) 48q + 144p = 24---(6) Solving equation 5 and 6 by elimination method, 72p = 6 p = 1/12 Now substitute the value of p in equation 5, 48q + 72 × 1/12 = 18 48q + 6 = 18 48q = 12 q = 1/4 Now we know that, 1/(x + y) = p 1/(x + y) = 1/12 x + y = 12 x = 12 - y ----(7) Also, 1/(x - y) = 1/4 x - y = 4 Substitute value of x in the above equation, 12 -y - y = 4 12 - 2y = 4 2y = 8 y = 4 Hence the speed of the stream is 4 km/hr. Substitute value of in equation 1, x = 12 - 4 x = 8 km/hr Hence the speed of the motorboat in still water is 8 km/hr.

17.

A motorboat covers a distance of 16km upstream and 24km downstream in 6 hours. In thesame time it covers a distance of 12 km upstream and 36km downstream. Find the speed of the boat in still water and that of the stream. plz send pics of ur page

Answer»

Answer:

Speed of the stream = 4 km/hr

Speed of motorboat in still water = 8 km/hr

Step-by-step EXPLANATION:

Given:

Motorboat covers a distance of 16 km UPSTREAM and 24 km DOWNSTREAM in 6 hours
It covers a distance of 12 km upstream and 36 km downstream again in 6 hours

To FIND:

Speed of the boat in still water
Speed of the stream

Solution:

Let the speed of the motorboat be x km/hr

Let speed of stream be y km/hr

We KNOW that,

Speed while travelling upstream = (x - y) km/hr

Speed while travelling downstream = (x + y) km/hr

Also we know that,

Time = Distance/Speed

By the first case given,

$\tt \dfrac{16}{(x-y)} +\dfrac{24}{x+y} =6----(1)$

Now by the second case given,

$\tt \dfrac{12}{(x-y)} +\dfrac{36}{x+y} =6---(2)$

Let us assume that 1/(x + y) = p, 1/(x - y) = q

Therefore equation 1 changes to,

16q + 24p = 6------(3)

12q + 36p = 6------(4)

Multiply equation 3 by 3 and equation 4 by 4

48q + 72p = 18---(5)

48q + 144p = 24---(6)

Solving equation 5 and 6 by elimination method,

72p = 6

p = 1/12

Now substitute the value of p in equation 5,

48q + 72 × 1/12 = 18

48q + 6 = 18

48q = 12

q = 1/4

Now we know that,

1/(x + y) = p

1/(x + y) = 1/12

x + y = 12

x = 12 - y ----(7)

Also,

1/(x - y) = 1/4

x - y = 4

Substitute value of x in the above equation,

12 -y - y = 4

12 - 2y = 4

2y = 8

y = 4

Hence the speed of the stream is 4 km/hr.

Substitute value of in equation 1,

x = 12 - 4

x = 8 km/hr

Hence the speed of the motorboat in still water is 8 km/hr.

Discussion

18.	Solve 8m + 4 = 3 Cm-1)
Answer» Answer: 8m-3m=-1-4 5M= -5 m= -1

18.

Solve 8m + 4 = 3 Cm-1)

Answer»

Answer:

8m-3m=-1-4

5M= -5

m= -1

Discussion

19.	16, 10789. What is the sum of - 10/3 + 5/3A. 15/3. B. 12/3 C. 15/4 D. 10/3
Answer» Answer: We have the following: (i) 5 8 and 7 12 By CROSS multiplication, we get: 5 × 12 = 60 and 7 × 8 = 56 However, 60 > 56 ∴ 5 8 > 7 12 (ii) 5 9 and 11 15 By cross multiplication, we get: 5 × 15 = 75 and 9 × 11 = 99 However, 75 < 99 ∴ 5 9 < 11 15 (iii) 11 12 and 15 16 By cross multiplication, we get: 11 × 16 = 176 and 12 × 15 = 180 However, 176 < 180 ∴ 11 12 < 15 16 Step-by-step explanation:

19.

16, 10789. What is the sum of - 10/3 + 5/3A. 15/3. B. 12/3 C. 15/4 D. 10/3

Answer»

Answer:

We have the following:

(i)

5

8

and

7

12

By CROSS multiplication, we get:

5 × 12 = 60 and 7 × 8 = 56

However, 60 > 56

∴

5

8

>

7

12

(ii)

5

9

and

11

15

By cross multiplication, we get:

5 × 15 = 75 and 9 × 11 = 99

However, 75 < 99

∴

5

9

<

11

15

(iii)

11

12

and

15

16

By cross multiplication, we get:

11 × 16 = 176 and 12 × 15 = 180

However, 176 < 180

∴

11

12

<

15

16

Step-by-step explanation:

Discussion

20.	Pls answer correctlywrong answer= report
Answer» Answer: 6 unit only 6 unit HOGA aap DEKH LO

20.

Pls answer correctlywrong answer= report

Answer»

Answer:

6 unit only 6 unit HOGA aap DEKH LO

Discussion

21.	Find the equation whose roots are 3+2i and 3-2i?
Answer» ANSWER: Given roots are 3−2i and 3+2i. Sum of roots is EQUAL to 3−2i+3+2i=6 Product of roots is equal to (3+2i)(3−2i)=9+4=13 Therefore the QUADRATIC EQUATION is x2−6x+13=0. i am not sure about the answer ,but i hope it helps u

21.

Find the equation whose roots are 3+2i and 3-2i?

Answer»

ANSWER:

Given roots are 3−2i and 3+2i.

Sum of roots is EQUAL to 3−2i+3+2i=6

Product of roots is equal to (3+2i)(3−2i)=9+4=13

Therefore the QUADRATIC EQUATION is x2−6x+13=0.

i am not sure about the answer ,but i hope it helps u

Discussion

22.	8 hours 22 minutes 20 seconds by 5.
Answer» ANSWER: PLS EXPLAIN more.i NEED more DATA

22.

8 hours 22 minutes 20 seconds by 5.

Answer»

ANSWER:

PLS EXPLAIN more.i NEED more DATA

Discussion

23.	from a shuffled deck of 52 playing cards one card is drawn at random find the probability that the card drawn is and which card is this
Answer» ANSWER: IDENTIFY the poetic devices in these LINES- "But presently up spoke little dog MUSTARD, I’d have been twice as brave if I hadn’t been FLUSTERED"

23.

from a shuffled deck of 52 playing cards one card is drawn at random find the probability that the card drawn is and which card is this

Answer»

ANSWER:

IDENTIFY the poetic devices in these LINES-

"But presently up spoke little dog MUSTARD, I’d have been twice as brave if I hadn’t been FLUSTERED"

Discussion

24.	पाइथागोरस प्रमेंय क्या है।
Answer» Answer: In mathematics, the PYTHAGOREAN THEOREM, also KNOWN as Pythagoras's theorem, is a fundamental relation in Euclidean geometry among the three sides of a right TRIANGLE. It states that the area of the square whose side is the hypotenuse is equal to the sum of the areas of the squares on the other two sides.

24.

पाइथागोरस प्रमेंय क्या है।

Answer»

Answer:

In mathematics, the PYTHAGOREAN THEOREM, also KNOWN as Pythagoras's theorem, is a fundamental relation in Euclidean geometry among the three sides of a right TRIANGLE. It states that the area of the square whose side is the hypotenuse is equal to the sum of the areas of the squares on the other two sides.

Discussion

25.	1/2x +1/3y=2 and 1/3x+1/2y=13/6 what is the value of x and y
Answer» ANSWER: x = 2, y = 3 Step-by-step EXPLANATION: See, there are two equations $\left \{{\frac{1}{2}x + \frac{1}{3}y=2} - (1) \atop{\frac{1}{3}x + \frac{1}{2}y=\frac{13}{6}} - (2)} \right.$ Finding the value of x in (1), $\frac{1}{2}x + \frac{1}{3}y =2$ $\frac{1}{2}x = 2 - \frac{1}{3}y$ ∴ $x = 2(2 - \frac{1}{3}y) = <klux>4</klux> - \frac{2}{3}y$ Now 4 - 2/3y - (3) Sub (3) in (2), $\frac{1}{3}(4 - \frac{2}{3}y) + \frac{1}{2}y = \frac{13}{6}$ ( 4-2/3y came from x's value) Solving the above equation, we will get $y = 3 - (4)$ Then sub (4) into (1) $\frac{1}{2}x + \frac{1}{3}(3) = 2$ ∴ x = 2

25.

1/2x +1/3y=2 and 1/3x+1/2y=13/6 what is the value of x and y

Answer»

ANSWER:

x = 2, y = 3

Step-by-step EXPLANATION:

See, there are two equations

$\left \{{\frac{1}{2}x + \frac{1}{3}y=2} - (1) \atop{\frac{1}{3}x + \frac{1}{2}y=\frac{13}{6}} - (2)} \right.$

Finding the value of x in (1),

$\frac{1}{2}x + \frac{1}{3}y =2$

$\frac{1}{2}x = 2 - \frac{1}{3}y$

∴ $x = 2(2 - \frac{1}{3}y) = <klux>4</klux> - \frac{2}{3}y$

Now 4 - 2/3y - (3)

Sub (3) in (2),

$\frac{1}{3}(4 - \frac{2}{3}y) + \frac{1}{2}y = \frac{13}{6}$ ( 4-2/3y came from x's value)

Solving the above equation, we will get

$y = 3 - (4)$

Then sub (4) into (1)

$\frac{1}{2}x + \frac{1}{3}(3) = 2$

∴ x = 2

Discussion

26.	Subtract 15x2–24y2 +6y–3from7x2 –10xy+9y2 +5x–6y
Answer» ANSWER: THANKS MATE...... CONGRATULATIONS

26.

Subtract 15x2–24y2 +6y–3from7x2 –10xy+9y2 +5x–6y

Answer»

ANSWER:

THANKS MATE...... CONGRATULATIONS

Discussion

27.	16. Let f(x)= 79-s? Then; Dom (1,?a) -00-3] b) (3,00d) 1-00,-3] [3,00]Le 1-3] 3]
Answer» ANSWER: don't know bro if you have any other questions ican HELP you to anwer it

27.

16. Let f(x)= 79-s? Then; Dom (1,?a) -00-3] b) (3,00d) 1-00,-3] [3,00]Le 1-3] 3]

Answer»

ANSWER:

don't know bro

if you have any other questions ican HELP you to anwer it

Discussion

28.	(2x+5)(3 x+1)ब्रैकेट टू एक्स प्लस 5 ब्रैकेट एक्स एक्स एक्स
Answer» ANSWER: Hii How are you? please FOLLOW me nad tnx my answer Step-by-step explanation: (2x + 5 ) × (3x + 1) 7x × 4X = 28 x² According to your Questions This OS your answer Mate

28.

(2x+5)(3 x+1)ब्रैकेट टू एक्स प्लस 5 ब्रैकेट एक्स एक्स एक्स

Answer»

ANSWER:

Hii

How are you? please FOLLOW me nad tnx my answer

Step-by-step explanation:

(2x + 5 ) × (3x + 1)

7x × 4X = 28 x²

According to your Questions This OS your answer Mate

Discussion

29.	Draw a line segment AB of length 8cm. With A and B as centres, draw circles ofradius 4cm and 3cm respectively. Construct tangents to each circle from the centre of the other circle.
Answer» Answer: I can't UNDERSTAND OK PLEASE EXPLAIN

29.

Draw a line segment AB of length 8cm. With A and B as centres, draw circles ofradius 4cm and 3cm respectively. Construct tangents to each circle from the centre of the other circle.

Answer»

Answer:

I can't UNDERSTAND OK PLEASE EXPLAIN

Discussion

30.	Find the -9/z=-11/5 z=
Answer» ANSWER: –9×5=–11×z –45=–11z ,–45÷–11=z 4.09=z

30.

Find the -9/z=-11/5 z=

Answer»

ANSWER:

–9×5=–11×z

–45=–11z

,–45÷–11=z

4.09=z

Discussion

31.	Whatis DTFT? in signals and system
Answer» Answer: here is your answer hope it helps ☺️ Step-by-step EXPLANATION: In mathematics, the discrete-time Fourier transform (DTFT) is a form of Fourier ANALYSIS that is APPLICABLE to a sequence of values. ... From uniformly spaced samples it produces a function of FREQUENCY that is a periodic summation of the continuous Fourier transform of the original continuous function

31.

Whatis DTFT? in signals and system

Answer»

Answer:

here is your answer hope it helps ☺️

Step-by-step EXPLANATION:

In mathematics, the discrete-time Fourier transform (DTFT) is a form of Fourier ANALYSIS that is APPLICABLE to a sequence of values. ... From uniformly spaced samples it produces a function of FREQUENCY that is a periodic summation of the continuous Fourier transform of the original continuous function

Discussion

32.	the sum of the ages of mitali and her mother is 42 years.if mitali is 9 years old. find out how old is her mother
Answer» AGE of mithali=9 age of MOTHER=? SUM of their age=42 therefore, 42-9=33 age of her mother is 33 YEARS

32.

the sum of the ages of mitali and her mother is 42 years.if mitali is 9 years old. find out how old is her mother

Answer»

AGE of mithali=9

age of MOTHER=?

SUM of their age=42

therefore, 42-9=33

age of her mother is 33 YEARS

Discussion

33.	SUBTRACT 2x-3y+ 4z from 7x+5y+9z5x+8y+5zO 5x+7y+525x+9y+425x+8y+4z
Answer» ANSWER: A• 5x+8y+5z Step-by-step explanation: 7x+5y+9z-(2x-3y+4z) open the brackets 7x+5y+9z-2x+3y-4z collect the LIKE terms 7x-2x+5y+3y+9z-4z 5x+8y+5z i HOPE it may help you

33.

SUBTRACT 2x-3y+ 4z from 7x+5y+9z5x+8y+5zO 5x+7y+525x+9y+425x+8y+4z

Answer»

ANSWER:

A• 5x+8y+5z

Step-by-step explanation:

7x+5y+9z-(2x-3y+4z)

open the brackets

7x+5y+9z-2x+3y-4z

collect the LIKE terms

7x-2x+5y+3y+9z-4z

5x+8y+5z

i HOPE it may help you

Discussion

34.	If cos theta = 4/5 then sin theta =
Answer» ANSWER: COS THETA =4/5=Base/Hypotenuse perpendicular²+base²=hypotenuse² P²+4²=5² P=√25-16=√9=3 sin theta=perpendicular/hypotenuse =3/5 Hope it HELPS...

34.

If cos theta = 4/5 then sin theta =

Answer»

ANSWER:

COS THETA =4/5=Base/Hypotenuse

perpendicular²+base²=hypotenuse²

P²+4²=5²

P=√25-16=√9=3

sin theta=perpendicular/hypotenuse

=3/5

Hope it HELPS...

Discussion

35.	The ratio of the length of the parallel sides of a trapezium is 5:3 and the distance betweenthem is 16cm. If the area of the trapezium is 960 cm”, find the length of the parallel sides.
Answer» Answer: let the sides = 5x 3x distance between them = 16cm Area of TRAPEZIUM = 960 area of trapezium = 1/2 × (sum of parallel lines) × height 960 = 1/2 × (5x + 3x) × 16 960 = 8X + 8 952 = 8x 119 = x therefore 5x = 5 × 119 = 595 3x = 3 × 119 = 357 Step-by-step EXPLANATION: PLEASE FOLLOW

35.

The ratio of the length of the parallel sides of a trapezium is 5:3 and the distance betweenthem is 16cm. If the area of the trapezium is 960 cm”, find the length of the parallel sides.

Answer»

Answer:

let the sides = 5x 3x

distance between them = 16cm

Area of TRAPEZIUM = 960

area of trapezium = 1/2 × (sum of parallel lines) × height

960 = 1/2 × (5x + 3x) × 16

960 = 8X + 8

952 = 8x

119 = x

therefore 5x = 5 × 119 = 595

3x = 3 × 119 = 357

Step-by-step EXPLANATION:

PLEASE FOLLOW

Discussion

36.	Subtract the sum of -18 and -2 from the sum of 31 and -51
Answer» ANSWER: ANS: 0 Step-by-step explanation: MAY this wil help you

36.

Subtract the sum of -18 and -2 from the sum of 31 and -51

Answer»

ANSWER:

ANS: 0

Step-by-step explanation:

MAY this wil help you

Discussion

37.	(– 46) × (– 46) × (– 46) = __________
Answer» Topic Algebraic Identities To Find ( -46 ) * ( -46 ) * ( -46 ) METHOD 1 Simply multiply each of them. ( -46 ) * ( -46 ) * ( - 46 ) 2116 * ( - 46 ) - 97336 Method 2 Use identity ( a - b )³ = a³ - b³ - 3ab( a - b ) Take a = 4 and b = 50 ( 4 - 50 )³ = ( 4 )³ - ( 50 )³ - 3( 4 )( 50 )( 4 - 50 ) 64 - 125000 - 600( - 46 ) 64 - 125000 + 27600 27664 - 125000 - 97336 Answer So, answer is -97336. Learn More :- Product of three negative integers is negative. Product of three positive integers is positive.

37.

(– 46) × (– 46) × (– 46) = __________

Answer»

Topic

Algebraic Identities

To Find

( -46 ) * ( -46 ) * ( -46 )

METHOD 1

Simply multiply each of them.

( -46 ) * ( -46 ) * ( - 46 )

2116 * ( - 46 )

- 97336

Method 2

Use identity

( a - b )³ = a³ - b³ - 3ab( a - b )

Take a = 4 and b = 50

( 4 - 50 )³ =

( 4 )³ - ( 50 )³ - 3( 4 )( 50 )( 4 - 50 )

64 - 125000 - 600( - 46 )

64 - 125000 + 27600

27664 - 125000

- 97336

Answer

So, answer is -97336.

Learn More :-

Product of three negative integers is negative.

Product of three positive integers is positive.

Discussion

38.	हाउ मेनी टू डिजिट नंबर डिविजिबल बाय 5
Answer» ANSWER: IT CAN BE INGINITE BUT IT MUST HAVE A 0 OR 5 IN ITS END

38.

हाउ मेनी टू डिजिट नंबर डिविजिबल बाय 5

Answer»

ANSWER:

IT CAN BE INGINITE BUT IT MUST HAVE A 0 OR 5 IN ITS END

Discussion

39.	Convert the following decimals into p/q 1. 3•5~ 2. l•17~
Answer» Answer: 7/2 and 117/100 Step-by-step explanation: 1. 3.5 35/10 7/2 2. 1.17 117/100

39.

Convert the following decimals into p/q 1. 3•5~ 2. l•17~

Answer»

Answer:

7/2 and 117/100

Step-by-step explanation:

1. 3.5

35/10

7/2

2. 1.17

117/100

Discussion

40.	Evaluate: ∫(2+1)23 .
Answer» Answer: I to you following I saying Step-by-step explanation: please FOLLOW I ALSO you to following OKK

40.

Evaluate: ∫(2+1)23 .

Answer»

Answer:

I to you following I saying

Step-by-step explanation:

please FOLLOW I ALSO you to following OKK

Discussion

41.	Iv) An angle who measure is less than that of a right angle is..........
Answer» ANSWER: ACUTE ANGLE..................

41.

Iv) An angle who measure is less than that of a right angle is..........

Answer»

ANSWER:

ACUTE ANGLE..................

Discussion

42.	Find the complement of 65
Answer» Answer: 25° Step-by-step explanation: COMPLEMENT ANGLES are the pair of angles which forms the SUM of 90° so ,complement of 65 will be - 90 - 65 = 25°

42.

Find the complement of 65

Answer»

Answer:

25°

Step-by-step explanation:

COMPLEMENT ANGLES are the pair of angles which forms the SUM of 90°

so ,complement of 65 will be -

90 - 65 = 25°

Discussion

43.	Commen difference of an AP when any two terms are given
Answer» Answer: 2nd TERM MINUS 1ST term = COMMON DIFFERENCE

43.

Commen difference of an AP when any two terms are given

Answer»

Answer:

2nd TERM MINUS 1ST term = COMMON DIFFERENCE

Discussion

44.	After how many decimal places will the decimal expansion of the number 359/2⁶x5³ terminate?
Answer» Step-by-step explanation: 1.55 so , DECIMAL EXPANSION TERMINATES after TWO decimal

44.

After how many decimal places will the decimal expansion of the number 359/2⁶x5³ terminate?

Answer»

Step-by-step explanation:

1.55

so , DECIMAL EXPANSION TERMINATES after TWO decimal

Discussion

45.	Solve for x : V6x+7 - (2x - 7) = 0.
Answer» Step-by-step EXPLANATION: L THINK it will HELP you

45.

Solve for x : V6x+7 - (2x - 7) = 0.

Answer»

Step-by-step EXPLANATION:

L THINK it will HELP you

Discussion

46.	One zero of the quadratic polynomial 2x2 - 8x - m is 5/2, determine the other zero.
Answer» ANSWER: Step-by-step EXPLANATION: HII brooo How are you??

46.

One zero of the quadratic polynomial 2x2 - 8x - m is 5/2, determine the other zero.

Answer»

ANSWER:

Step-by-step EXPLANATION:

HII brooo

How are you??

Discussion

47.	Find the amount of Rs 256 in two year at 6% per annum, when the interest iscompounded annually?[3]
Answer» Step-by-step EXPLANATION: Rs.800.................

47.

Find the amount of Rs 256 in two year at 6% per annum, when the interest iscompounded annually?[3]

Answer»

Step-by-step EXPLANATION:

Rs.800.................

Discussion

48.	Explanation: Researchers think that maybe, when people feel anxious, the math anxiety that they feel is using up some of their working memory ...
Answer» his downxiendowndiemdorbdoen

Discussion

49.	A Two cars start from the same place at the same time in the same direction. The speed the first car is 70 km/h and that of the second car is 20 m/s. What is the distance between the cars after 1 hour 15 minutes?
Answer» Step-by-step EXPLANATION: HOPE you UNDERSTAND

49.

A Two cars start from the same place at the same time in the same direction. The speed the first car is 70 km/h and that of the second car is 20 m/s. What is the distance between the cars after 1 hour 15 minutes?

Answer»

Step-by-step EXPLANATION:

HOPE you UNDERSTAND

Discussion

50.	25% of students of a class are girls. If Number of boys are 20more than girls.Then total number of students in the classare35405060
Answer» ANSWER: SORRY........................

50.

25% of students of a class are girls. If Number of boys are 20more than girls.Then total number of students in the classare35405060

Answer»

ANSWER:

SORRY........................

Discussion

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