332354 + Interview Questions in Secondary School in Math

1.	The graph of y= f(x) passes through the point (4,6), then the graph of y= 1/f(x) passes through what point?
Answer» Answer: c).(-1,1) is the WRITE answer as y = -x 1 = -(-1) =1=1 plzzz MARK it as BRAIN list

1.

The graph of y= f(x) passes through the point (4,6), then the graph of y= 1/f(x) passes through what point?

Answer»

Answer:

c).(-1,1) is the WRITE answer

as y = -x

1 = -(-1)

=1=1

plzzz MARK it as BRAIN list

Discussion

2.	What happens to the value of a fraction, ifthe denominator of the fraction is deprecasedrechile numerates us tept sincbanged ? reseplaisawith nexample.
Answer» ANSWER: Which standered QUESTION is this

2.

What happens to the value of a fraction, ifthe denominator of the fraction is deprecasedrechile numerates us tept sincbanged ? reseplaisawith nexample.

Answer»

ANSWER:

Which standered QUESTION is this

Discussion

3.	if the polynomial x4+2x+8x2+12x+8 is divided by another polynoimal (X2+5) the remainder is (ax+b) and a-b.
Answer» ANSWER: hdacjjursscggygggfdd

3.

if the polynomial x4+2x+8x2+12x+8 is divided by another polynoimal (X2+5) the remainder is (ax+b) and a-b.

Answer»

ANSWER:

hdacjjursscggygggfdd

Discussion

4.	if each exterior angle of a regular polygon measures 20 degree what is the sum of its interior angle
Answer» $\large\bf \underline\red{HeY}$ $\huge{\underline{\underline{\mathbb{\pink{ANSWER}}}}}$ ➡️So there are 18 exterior angles. This ALSO means that there are 18 vertices and 18 INTERIOR angles. Since each interior/exterior pair is supplementary and since the exterior ANGLE is 20, the interior angle is 180-20 = 160 degrees. for the sum of all the interior angles. $\huge\mathcal{\pink{\underline{\blue{\boxed{\purple{Thanks!}}}}}}$

4.

if each exterior angle of a regular polygon measures 20 degree what is the sum of its interior angle

Answer»

$\large\bf \underline\red{HeY}$

$\huge{\underline{\underline{\mathbb{\pink{ANSWER}}}}}$

➡️So there are 18 exterior angles. This ALSO means that there are 18 vertices and 18 INTERIOR angles. Since each interior/exterior pair is supplementary and since the exterior ANGLE is 20, the interior angle is 180-20 = 160 degrees. for the sum of all the interior angles.

$\huge\mathcal{\pink{\underline{\blue{\boxed{\purple{Thanks!}}}}}}$

Discussion

5.	An advertisement board is in the form of an isosceles triangle with sides 12 meter 10 metre and 10 meter find the cost of painting it at 50 rupee per meter sq.
Answer» ANSWER: Step-by-step explanation:just apply the FORMULA of area if isosos tri then multiply by the COST

5.

An advertisement board is in the form of an isosceles triangle with sides 12 meter 10 metre and 10 meter find the cost of painting it at 50 rupee per meter sq.

Answer»

ANSWER:

Step-by-step explanation:just apply the FORMULA of area if isosos tri then multiply by the COST

Discussion

6.	1. Ajay cut a 98/5-m-long rope into two pieces of lengths 13/4m and 17/2m. find the length of the remaining rope.
Answer» Step-by-step explanation: 98/5=191.6 13/4=4.25 17/2=8.5 so 4.25+8.5=12.75 hence 191-12.75 =179.75

6.

1. Ajay cut a 98/5-m-long rope into two pieces of lengths 13/4m and 17/2m. find the length of the remaining rope.

Answer»

Step-by-step explanation:

98/5=191.6

13/4=4.25

17/2=8.5

so

4.25+8.5=12.75

hence

191-12.75

=179.75

Discussion

7.	Factorisation24x square -63x+ 20
Answer» SORRY I this QUESTION was wrong plzz TAKE the CORRECT question

7.

Factorisation24x square -63x+ 20

Answer»

SORRY I this QUESTION was wrong plzz TAKE the CORRECT question

Discussion

8.	Question 1- Water flows in a tank 150m × 100m at the base through a pipe whose cross-section is 2 dm × 1.5 dm at the speed of 15 km/h. In what time, will the water be 3m deep?Question 2- A solid cylinder has total surface area of 462 sq cm. Its curved surface area is one-third of its total surface area. Find the volume of the cylinder. (Assume π=22/7).
Answer» Step-by-step explanation: Question 1- Volume of water in the tank, when depth is of 3 m, V = 150 × 100 × 3 = 45000 m3 Rate of volume of water FLOWING = 2 × 1.5 × 10-2 × 15000 m3/hr = 450 m3/hr Thus, time taken = 45000/450 hr = 100 hours Question 2- Curved SURFACE area = TOTAL surface area / 3. Curved surface area = 462/3 = 154. Rest of area = 462 - 154 = 308. 2πr^2 = 308. r^2 = 308 x 7 / 44 = 49. r = 7. 2πrh = 154. h = 154 / 2 x 22 = 7/2. Volume = πr^2 h = (22/7) x (7^2) x (7/2) = 539. Volume = 539 cm^3.... Please FOLLOW me..

8.

Question 1- Water flows in a tank 150m × 100m at the base through a pipe whose cross-section is 2 dm × 1.5 dm at the speed of 15 km/h. In what time, will the water be 3m deep?Question 2- A solid cylinder has total surface area of 462 sq cm. Its curved surface area is one-third of its total surface area. Find the volume of the cylinder. (Assume π=22/7).

Answer»

Step-by-step explanation:

Question 1- Volume of water in the tank, when depth is of 3 m, V = 150 × 100 × 3 = 45000 m3

Rate of volume of water FLOWING = 2 × 1.5 × 10-2 × 15000 m3/hr = 450 m3/hr

Thus, time taken = 45000/450 hr = 100 hours

Question 2- Curved SURFACE area = TOTAL surface area / 3.

Curved surface area = 462/3 = 154.

Rest of area = 462 - 154 = 308.

2πr^2 = 308.

r^2 = 308 x 7 / 44 = 49.

r = 7.

2πrh = 154.

h = 154 / 2 x 22 = 7/2.

Volume = πr^2 h = (22/7) x (7^2) x (7/2) = 539.

Volume = 539 cm^3....

Please FOLLOW me..

Discussion

9.	Solve this question and gain 10 point
Answer» Answer: 90 Step-by-step EXPLANATION: cos B = AB^2+BC^2-AC^2 / 2AB BC =108+36-144/2×6ROOT3×6 =0 SO,COS B IS 0 B IS 90 IF IT HELPS YOU PLEASE MARK ME AS BRAINLIEST

9.

Solve this question and gain 10 point

Answer»

Answer:

90

Step-by-step EXPLANATION:

cos B = AB^2+BC^2-AC^2 / 2AB BC

=108+36-144/2×6ROOT3×6

=0

SO,COS B IS 0

B IS 90

IF IT HELPS YOU PLEASE MARK ME AS BRAINLIEST

Discussion

10.	two opposite angle of a rhombus are 120 each. construct the Rhombus given the length of side is 5 cm.
Answer» ${\huge{\underbrace{\overbrace{\pink{Answer:-}}}}}$ Suppose GIVEN rhombus is ABCD , with each side = 10 cm, smaller DIAGONAL is BD & longer diagonal is AC , with point of intersection O. TO FIND: AC = ? < A = 60° => TRIANGLE ABD is an equilateral triangle. as AB = AD hence base angles will be equal. & each will be of 60° Hence smaller diagonal BD = 10 cm => BO = 10/2 = 5 cm As, diagonals of a rhombus, bisect each other at right angles. => TRI AOB is a right triangle with hypotenuse AB. AB² = BO² + AO² => 10² = 5² + AO² => AO = √(100 - 25) => AO = √75 = 5√3 cm => 2AO = 10√3 cm => AC = 10√3 cm

10.

two opposite angle of a rhombus are 120 each. construct the Rhombus given the length of side is 5 cm.

Answer»

${\huge{\underbrace{\overbrace{\pink{Answer:-}}}}}$

Suppose GIVEN rhombus is ABCD , with each side = 10 cm, smaller DIAGONAL is BD & longer diagonal is AC , with point of intersection O.

TO FIND: AC = ?

< A = 60°

=> TRIANGLE ABD is an equilateral triangle. as AB = AD hence base angles will be equal. & each will be of 60°

Hence smaller diagonal BD = 10 cm => BO = 10/2 = 5 cm

As, diagonals of a rhombus, bisect each other at right angles.

=> TRI AOB is a right triangle with hypotenuse AB.

AB² = BO² + AO²

=> 10² = 5² + AO²

=> AO = √(100 - 25)

=> AO = √75 = 5√3 cm

=> 2AO = 10√3 cm

=> AC = 10√3 cm

Discussion

11.	Tan 2alpha =3/4 find tan alpha
Answer» ANSWER: Tan^2 A = 3/4 TanA = √3/4 = √3/2 TanA = √3/2 Hope it HELPS you..

11.

Tan 2alpha =3/4 find tan alpha

Answer»

ANSWER:

Tan^2 A = 3/4

TanA = √3/4

= √3/2

TanA = √3/2

Hope it HELPS you..

Discussion

12.	Re-arrange the equation to make P the subject.1/M = 1/N + 1/P
Answer» <P>ANSWER:P = MN/N-M Step-by-step EXPLANATION: 1/M = 1/N +1/P 1/P = 1/M - 1/N 1/P = N - M/MN P = MN/N-M

12.

Re-arrange the equation to make P the subject.1/M = 1/N + 1/P

Answer»

<P>ANSWER:P = MN/N-M

Step-by-step EXPLANATION: 1/M = 1/N +1/P

1/P = 1/M - 1/N

1/P = N - M/MN

P = MN/N-M

Discussion

13.	find the sum of the first 20 terms of an A.P whose common different is 3 times of its first term and its 5th term is 26
Answer» ANSWER: Step-by-step EXPLANATION: t5=a+4d=26 d=3a a+43a =26 13a = 26 a=2 d=6 sum of 20 TERMS = 20/2 (2*2+[20-1]6) sum of 20 terms = 1180

13.

find the sum of the first 20 terms of an A.P whose common different is 3 times of its first term and its 5th term is 26

Answer»

ANSWER:

Step-by-step EXPLANATION:

t5=a+4d=26

d=3a

a+4*3a =26

13a = 26

a=2

d=6

sum of 20 TERMS = 20/2 *(2*2+[20-1]6)

sum of 20 terms = 1180

Discussion

14.	What is hindi of radius?
Answer» त्रिज्या - RADIUS! MARK MY ANSWER AS THE BRANLIEST.

14.

What is hindi of radius?

Answer»

त्रिज्या - RADIUS!

MARK MY ANSWER AS THE BRANLIEST.

Discussion

15.	If HCF of 144 and 180 is expressed in the form of 144 M + 180 n find the value of M and n
Answer» ANSWER: Step-by-step EXPLANATION: HCF [144,180]=36 If we USE N=1 Then M=-1 N=3 Then M=-3

15.

If HCF of 144 and 180 is expressed in the form of 144 M + 180 n find the value of M and n

Answer»

ANSWER:

Step-by-step EXPLANATION:

HCF [144,180]=36

If we USE N=1 Then M=-1

N=3 Then M=-3

Discussion

16.	Rational form of 0.0 875 is
Answer» Step-by-step explanation: 875/1000.. . ..............

16.

Rational form of 0.0 875 is

Answer»

Step-by-step explanation:

875/1000..

.

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

Discussion

17.	Find the radius of the circle in the diagram below if BC is 20 ft and CE is 8 feet with work shown?
Answer» Given : a circle of RADIUS r is SHOWN in above where BC = 20 ft and CE = 8 ft. To FIND : The radius of the circle. solution : here BC is a tangent to the circle which touches at B. if we join B to centre (let O) then, ∆BOC is a right angled triangle. from Pythagoras theorem, OC² = BO² + BC² ⇒(r + 8)² = r² + 20² ⇒r² + 16r + 64 = r² + 400 ⇒16r = 400 - 64 = 336 ⇒r = 21 Therefore the radius of the circle is 21 ft. also read similar questions : What is the area of a triangle that has a base of 3 FEET and a height of 6 feet? 18 ft 2 18 ft 9 ft 2 4.5 ft 2 brainly.in/question/9743777 If the area of a circle is 81pi SQUARE feet, find its circumference. A. 18 Pi feet B. 20 pi feet C. 35 pi feet D. 25 pi ... brainly.in/question/5202225

17.

Find the radius of the circle in the diagram below if BC is 20 ft and CE is 8 feet with work shown?

Answer»

Given : a circle of RADIUS r is SHOWN in above where BC = 20 ft and CE = 8 ft.

To FIND : The radius of the circle.

solution : here BC is a tangent to the circle which touches at B. if we join B to centre (let O) then, ∆BOC is a right angled triangle.

from Pythagoras theorem,

OC² = BO² + BC²

⇒(r + 8)² = r² + 20²

⇒r² + 16r + 64 = r² + 400

⇒16r = 400 - 64 = 336

⇒r = 21

Therefore the radius of the circle is 21 ft.

also read similar questions : What is the area of a triangle that has a base of 3 FEET and a height of 6 feet? 18 ft 2 18 ft 9 ft 2 4.5 ft 2

brainly.in/question/9743777

If the area of a circle is 81pi SQUARE feet, find its circumference.

A. 18 Pi feet

B. 20 pi feet

C. 35 pi feet

D. 25 pi ...

brainly.in/question/5202225

Discussion

18.	A stadium has a total of 18,000 seats. Of these, 7,500 are field seats, and the rest are grandstand seats. Write an equation that could be used to find the number of grandstand seats s.
Answer» ANSWER: Step-by-step explanation:let the grandseats be X then x + FIELD EQUALS totalseats

18.

A stadium has a total of 18,000 seats. Of these, 7,500 are field seats, and the rest are grandstand seats. Write an equation that could be used to find the number of grandstand seats s.

Answer»

ANSWER:

Step-by-step explanation:let the grandseats be X then x + FIELD EQUALS totalseats

Discussion

19.	Simplify x + 3x – 36.
Answer» ANSWER: Step-by-step EXPLANATION:its just NOTHING but 4x-36

19.

Simplify x + 3x – 36.

Answer»

ANSWER:

Step-by-step EXPLANATION:its just NOTHING but 4x-36

Discussion

20.	प्रश्नावली 5.31. निम्नलिखित समांतर श्रेढ़ियों का योग ज्ञात कीजिए 1 2,7, 12,..., 10 पदों तक
Answer» Step-by-step EXPLANATION: $\bf \underline{\underline{Question}} \:$ प्रश्नावली 5.3 1. निम्नलिखित समांतर श्रेढ़ियों का योग ज्ञात कीजिए 1 2,7, 12,..., 10 पदों तक _____________________________ $\bf \underline{\underline{to \: find \to}} \: \:$ समांतर श्रेढ़ियों का योग ज्ञात कीजिए ______________________________ $\bf \underline{\underline{given\to}} \: \:$ दिया गया है, a = 2, d = 5 N = 10 दिए गये n टर्म के योग को निम्न तरीके से निकाला जा सकता है; $\tt \: s_{n} = \frac{n}{2} (2a +( n - 1)d )\\ \\ \tt \: putting \: the \:all \: value \: \\ \\ \tt \:s_{10} =\frac{10}{2}(2 \times 2 + (10 - 1)5) \\ \tt \: s_{10} =5(4 + (9)5) \\ \tt \: s_{10} = 5(4 + 45) \\ \tt \: s_{10} = 5 \times 49 = 245$ इसलिए, दिए गए AP के 10 टर्म का योग = 245

20.

प्रश्नावली 5.31. निम्नलिखित समांतर श्रेढ़ियों का योग ज्ञात कीजिए 1 2,7, 12,..., 10 पदों तक

Answer»

Step-by-step EXPLANATION:

$\bf \underline{\underline{Question}} \:$

प्रश्नावली 5.3

1. निम्नलिखित समांतर श्रेढ़ियों का योग ज्ञात कीजिए

1 2,7, 12,..., 10 पदों तक

_____________________________

$\bf \underline{\underline{to \: find \to}} \: \:$

समांतर श्रेढ़ियों का योग ज्ञात कीजिए

______________________________

$\bf \underline{\underline{given\to}} \: \:$

दिया गया है, a = 2,
d = 5
N = 10

दिए गये n टर्म के योग को निम्न तरीके से निकाला जा

सकता है;

$\tt \: s_{n} = \frac{n}{2} (2a +( n - 1)d )\\ \\ \tt \: putting \: the \:all \: value \: \\ \\ \tt \:s_{10} =\frac{10}{2}(2 \times 2 + (10 - 1)5) \\ \tt \: s_{10} =5(4 + (9)5) \\ \tt \: s_{10} = 5(4 + 45) \\ \tt \: s_{10} = 5 \times 49 = 245$

इसलिए, दिए गए AP के 10 टर्म का योग = 245

Discussion

21.	In the given figure PQ\|\|RS and l is a transversal , what will be the value of x
Answer» ANSWER: where is the FIGURE ? ? ..............

21.

In the given figure PQ||RS and l is a transversal , what will be the value of x

Answer»

ANSWER:

where is the FIGURE ? ? ..............

Discussion

22.	Write a rational number between √2 and√3
Answer» Answer: 1.5731 Step-by-step EXPLANATION: $\sqrt{3}$ = 1.7320 $\sqrt{2}$ = 1.4142 $\frac{1.7320 + 1.4142}{2}$ = 1.5731

22.

Write a rational number between √2 and√3

Answer»

Answer:

1.5731

Step-by-step EXPLANATION:

$\sqrt{3}$ = 1.7320

$\sqrt{2}$ = 1.4142

$\frac{1.7320 + 1.4142}{2}$ = 1.5731

Discussion

23.	3(sin 0 - cos 0)*+6(sin 0 + cos 0)2 + 4(sin 0 + cos“ ) = 13.Do thot
Answer» Step-by-step explanation: WKT SIN 0 = 0 And cos 0 = 1 3( 0-1) + 6(0+1)^2 +4 (0+1) = 13 3(-1) +6(1) +4(1) = 13 -3 +6+4=13 7 = 13 Hope it HELPS u MARK BRAINLIEST

23.

3(sin 0 - cos 0)*+6(sin 0 + cos 0)2 + 4(sin 0 + cos“ ) = 13.Do thot

Answer»

Step-by-step explanation:

WKT SIN 0 = 0

And cos 0 = 1

3( 0-1) + 6(0+1)^2 +4 (0+1) = 13

3(-1) +6(1) +4(1) = 13

-3 +6+4=13

7 = 13

Hope it HELPS u

MARK BRAINLIEST

Discussion

24.	इक्विवेलेंट का मतलब क्या होता है
Answer» EQUALLY MAYBE it can HELP you

24.

इक्विवेलेंट का मतलब क्या होता है

Answer»

EQUALLY

MAYBE it can HELP you

Discussion

25.	5किसी वर्ग के आमने सामने की भुजाओं में से प्रत्येक में 5 सेमी की वृद्धि कर दी जाती है तो नए आयत की लम्बाई और चौड़ाई के बीच का अनुपात 3:2 हो जाता है तो पुराने वर्ग का क्षेत्रफल
Answer» ANSWER: उत्तर =500 सेमी Step-by-step EXPLANATION: आयत का क्षेत्रफल = लम्बाई ×चौङाइ = 5×5 = 25 सेमी आयत का परिमाप = 2(ल+च) = 2×(5+5) = 2×10 = 20 पुराने वर्ग का क्षेत्रफल = भुजा ×भुजा = 25×20 = 500

25.

5किसी वर्ग के आमने सामने की भुजाओं में से प्रत्येक में 5 सेमी की वृद्धि कर दी जाती है तो नए आयत की लम्बाई और चौड़ाई के बीच का अनुपात 3:2 हो जाता है तो पुराने वर्ग का क्षेत्रफल

Answer»

ANSWER:

उत्तर =500 सेमी

Step-by-step EXPLANATION:

आयत का क्षेत्रफल = लम्बाई ×चौङाइ

= 5×5

= 25 सेमी

आयत का परिमाप = 2(ल+च)

= 2×(5+5)

= 2×10

= 20

पुराने वर्ग का क्षेत्रफल = भुजा ×भुजा

= 25×20

= 500

Discussion

26.	16+3/10+5/1000in explain fast
Answer» Step-by-step explanation: 16+3/10+5/100 16+30+5/100 16+35/100 1600+35/100 1635/100 327/20

26.

16+3/10+5/1000in explain fast

Answer»

Step-by-step explanation:

16+3/10+5/100

16+30+5/100

16+35/100

1600+35/100

1635/100

327/20

Discussion

27.	If a,b,c are in continued proportion, prove that: abc(a+b+c)^3=(ab+bc+ca)^3
Answer» ANSWER: I not UNDERSTANDING your which CLASS you are

27.

If a,b,c are in continued proportion, prove that: abc(a+b+c)^3=(ab+bc+ca)^3

Answer»

ANSWER:

I not UNDERSTANDING your which CLASS you are

Discussion

28.	Express the following as mentioned2.7 mm as cm
Answer» Answer: 2.7mm in CM 1MM = 10cm 2.7cm=0.27mm

28.

Express the following as mentioned2.7 mm as cm

Answer»

Answer:

2.7mm in CM

1MM = 10cm

2.7cm=0.27mm

Discussion

29.	To prove:cot A/(cosec A+1) + (cosec A +1)/cot A = 2 sec A
Answer» ANSWER : $\frac{cotA}{cscA+1}+\frac{cscA+1}{cotA}=2secA$ Step-by-step EXPLANATION : L.H.S $\frac{\frac{cosA}{sinA} }{\frac{1}{sinA}+1 }+\frac{\frac{1}{sinA}+1 }{\frac{cosA}{sinA} }\\\\ =>\frac{\frac{cosA}{sinA} }{\frac{1+sinA}{sinA} }+\frac{\frac{1+sinA}{sinA} }{\frac{cosA}{sinA} }\\\\ =>\frac{cosA}{1+sinA}+\frac{1+sinA}{cosA}\\\\ =>\frac{cos^2A+(1+sinA)^2}{(1+sinA).cosA}\\\\ =>\frac{cos^2A+1+sin^2A+2sinA}{(1+sinA).cosA}\\\\ =>\frac{1+1+2sinA}{(1+sinA)cosA}\\\\ =>\frac{2(1+sinA)}{(1+sinA)cosA}\\\\ =>\frac{2}{cosA} \\\\=>2secA$ R.H.S Hence PROVED.

29.

To prove:cot A/(cosec A+1) + (cosec A +1)/cot A = 2 sec A

Answer»

ANSWER :

$\frac{cotA}{cscA+1}+\frac{cscA+1}{cotA}=2secA$

Step-by-step EXPLANATION :

L.H.S

$\frac{\frac{cosA}{sinA} }{\frac{1}{sinA}+1 }+\frac{\frac{1}{sinA}+1 }{\frac{cosA}{sinA} }\\\\ =>\frac{\frac{cosA}{sinA} }{\frac{1+sinA}{sinA} }+\frac{\frac{1+sinA}{sinA} }{\frac{cosA}{sinA} }\\\\ =>\frac{cosA}{1+sinA}+\frac{1+sinA}{cosA}\\\\ =>\frac{cos^2A+(1+sinA)^2}{(1+sinA).cosA}\\\\ =>\frac{cos^2A+1+sin^2A+2sinA}{(1+sinA).cosA}\\\\ =>\frac{1+1+2sinA}{(1+sinA)cosA}\\\\ =>\frac{2(1+sinA)}{(1+sinA)cosA}\\\\ =>\frac{2}{cosA} \\\\=>2secA$

R.H.S

Hence PROVED.

Discussion

30.	16+3/10+5/100 in explain fast
Answer» Answer: 195/100 or 1.95 Step-by-step explanation: 16 = 160/100 3/10 = 30/100 5/100 = 5/100 add: 160 + 30 +5 = 195 answer 195/100

30.

16+3/10+5/100 in explain fast

Answer»

Answer:

195/100

or 1.95

Step-by-step explanation:

16 = 160/100

3/10 = 30/100

5/100 = 5/100

add: 160 + 30 +5 = 195

answer 195/100

Discussion

31.	Prove Sin A/1+cos A=1-cos A/ Sin A
Answer» Answer: hey... buddy here is your answer... mark it as BRAINLIST..... ... hope this helps you... ..To PROVE, ....sinA/1+cosA=1-cosA/sinA L.H.S=sinA/1+cosA rationalise the denominator of the L. H. s.. sinA×(1—cosA)/(1+cosA)×(1—cosA) using the property (a+b)(a–b) =a²–b² sinA(1—cosA) /(1)²—(COS)² sinA(1—cosA) /(1—cos²A) using the property (1–cos²A) =sin²A sinA(1—cos A) /Sin²A SinA(1—cosA) /sinA×sinA (1—cosA) /sinA=L.H.S....... proved... ... .....follow me GUYS..

31.

Prove Sin A/1+cos A=1-cos A/ Sin A

Answer»

Answer:

hey... buddy here is your answer...

mark it as BRAINLIST.....

... hope this helps you...

..To PROVE,

....sinA/1+cosA=1-cosA/sinA

L.H.S=sinA/1+cosA

rationalise the denominator of the L. H. s..

sinA×(1—cosA)/(1+cosA)×(1—cosA)

using the property (a+b)(a–b) =a²–b²

sinA(1—cosA) /(1)²—(COS)²

sinA(1—cosA) /(1—cos²A)

using the property (1–cos²A) =sin²A

sinA(1—cos A) /Sin²A

SinA(1—cosA) /sinA×sinA

(1—cosA) /sinA=L.H.S....... proved...

...

.....follow me GUYS..

Discussion

32.	The point of intersection of more than and less than type ogive is (25,30)the total number of frequencies is ?
Answer» Answer: point of intersection of less than more than type ogives of a GROUP data is (27, 12) . means, the type of CUMULATIVE frequency CURVES, less than or more than ogives , meet at point (27, 12) . Thus, median = x co-ordinate of the point of intersection of more than ogive and less than ogive . here x co-ordinate of the point of the intersection of more than ogive and less than ogive is 27 . so,total frequency of DATE = median = 27. hence, answer is 27.

32.

The point of intersection of more than and less than type ogive is (25,30)the total number of frequencies is ?

Answer»

Answer:

point of intersection of less than more than type ogives of a GROUP data is (27, 12) .

means, the type of CUMULATIVE frequency CURVES, less than or more than ogives , meet at point (27, 12) .

Thus, median = x co-ordinate of the point of intersection of more than ogive and less than ogive .

here x co-ordinate of the point of the intersection of more than ogive and less than ogive is 27 . so,total frequency of DATE = median = 27.

hence, answer is 27.

Discussion

33.	व्हाट इज तमिलनाडु इन व्हिच रोड ऑन व्हिच स्टेट एंड व्हाट यू हैव टू
Answer» ANSWER: TAMIL NADU is a state Step-by-step EXPLANATION: hope this help you

33.

व्हाट इज तमिलनाडु इन व्हिच रोड ऑन व्हिच स्टेट एंड व्हाट यू हैव टू

Answer»

ANSWER:

TAMIL NADU is a state

Step-by-step EXPLANATION:

hope this help you

Discussion

34.	Write the smallest first in each row.3,0,5,7
Answer» ANSWER: HEY MATE here is your answer ⬇️ ⬇️ $3057 is the answer$

34.

Write the smallest first in each row.3,0,5,7

Answer»

ANSWER:

HEY MATE here is your answer ⬇️ ⬇️

$3057 is the answer$

Discussion

35.	W/7 = 0.3can you help me?
Answer» ANSWER: w/7 = 0.3 Then w = 0.3 × 7 w = 2.1

35.

W/7 = 0.3can you help me?

Answer»

ANSWER:

w/7 = 0.3

Then

w = 0.3 × 7

w = 2.1

Discussion

36.	तमिलनाडु इज द स्टेट ऑफ द व्हिच कंट्री एंड विच स्टेट एंड विच हाईवे ऑन व्हिच रोड
Answer» Tamil Nadu is the state of INDIA... And after this what u WANT to ASK.... I can't UNDERSTAND...

36.

तमिलनाडु इज द स्टेट ऑफ द व्हिच कंट्री एंड विच स्टेट एंड विच हाईवे ऑन व्हिच रोड

Answer»

Tamil Nadu is the state of INDIA...

And after this what u WANT to ASK.... I can't UNDERSTAND...

Discussion

37.	Find the area of a triangle two sides of which are 18 cm and 10 cm and the perimeter is 42cm.
Answer» Solution: Assume the third side of the triangle to be “x”. Now, the three sides of the triangle are 18 CM, 10 cm, and “x” cm It is given that the PERIMETER of the triangle = 42cm So, x = 42 – (18 + 10) cm = 14 cm ∴ The semi perimeter of triangle = 42/2 = 21 cm Using Heron’s formula, Area of the triangle, = √[s (s-a) (s-b) (s-c)] = √[21(21 – 18) (21 – 10) (21 – 14)] cm2 = √[21 × 3 × 11 × 7] m2 = 21√11 cm2 ______________________ Hope it will be helpful :)

37.

Find the area of a triangle two sides of which are 18 cm and 10 cm and the perimeter is 42cm.

Answer»

Solution:

Assume the third side of the triangle to be “x”.

Now, the three sides of the triangle are 18 CM, 10 cm, and “x” cm

It is given that the PERIMETER of the triangle = 42cm

So, x = 42 – (18 + 10) cm = 14 cm

∴ The semi perimeter of triangle = 42/2 = 21 cm

Using Heron’s formula,

Area of the triangle,

= √[s (s-a) (s-b) (s-c)]

= √[21(21 – 18) (21 – 10) (21 – 14)] cm2

= √[21 × 3 × 11 × 7] m2

= 21√11 cm2

______________________

Hope it will be helpful :)

Discussion

38.	Round 23.649 to one decimal place
Answer» ANSWER: $\text{[math]}$ 23.649 = 23.65 23.65 = 23.7 Step-by-step EXPLANATION: FOLLOW me ♥️

38.

Round 23.649 to one decimal place

Answer»

ANSWER:

$\text{[math]}$ 23.649 = 23.65

23.65 = 23.7

Step-by-step EXPLANATION:

FOLLOW me ♥️

Discussion

39.	Find five rational number between 0 and 0.1
Answer» Answer: 0.001 0.002,0.003,0.004,0.005

39.

Find five rational number between 0 and 0.1

Answer»

Answer:

0.001 0.002,0.003,0.004,0.005

Discussion

40.	Simplify the following expression. 4x17+(18x7)
Answer» Answer: 364 Step-by-step EXPLANATION: (14×17)+(18×7) =238+126 =364

40.

Simplify the following expression. 4x17+(18x7)

Answer»

Answer:

364

Step-by-step EXPLANATION:

(14×17)+(18×7)

=238+126

=364

Discussion

41.	When an amusement park opened the cost of admission ticket was 10 dollar
Answer» ANSWER: OHH YEAH! I SEEM its TRUE...!!!

41.

When an amusement park opened the cost of admission ticket was 10 dollar

Answer»

ANSWER:

OHH YEAH! I SEEM its TRUE...!!!

Discussion

42.	How to Factorise 4x²-6x+3
Answer» THANKS you because your QUESTION is PREFECT

Discussion

43.	Write each of the followingas a decimal.a. 200 + 30 + 5 +2/10+9/100 in explain plz fast answer
Answer» Answer: 235.29 Step-by-step explanation: 200+30+5 = 235 2/10 = 20/100 20/100 + 9/100 = 29/100 29/100 = 0.29 (SHIFT DECIMAL) 235.29

43.

Write each of the followingas a decimal.a. 200 + 30 + 5 +2/10+9/100 in explain plz fast answer

Answer»

Answer:

235.29

Step-by-step explanation:

200+30+5 = 235

2/10 = 20/100

20/100 + 9/100 = 29/100

29/100 = 0.29 (SHIFT DECIMAL)

235.29

Discussion

44.	Hi, Plz solve 3rd q. Of the given pic fast. I will mark u brainliest...Fast plz..!
Answer» ANSWER: Bhai figure SEND KRA than I give answer

44.

Hi, Plz solve 3rd q. Of the given pic fast. I will mark u brainliest...Fast plz..!

Answer»

ANSWER:

Bhai figure SEND KRA than I give answer

Discussion

45.	كرار3x upon 5 -2upon 5+x upon 3=3
Answer» ANSWER: HOPE it's HELP you.......

45.

كرار3x upon 5 -2upon 5+x upon 3=3

Answer»

ANSWER:

HOPE it's HELP you.......

Discussion

46.	Find the least number of tive digits, butmore than 10000, vbien is a peuneetSquallt. P1180, hind the square root of thenumbele do obtained. Azis 102011101
Answer» ANSWER: What are you WRITE?? This is the QUESTION?? SEND it again

46.

Find the least number of tive digits, butmore than 10000, vbien is a peuneetSquallt. P1180, hind the square root of thenumbele do obtained. Azis 102011101

Answer»

ANSWER:

What are you WRITE??

This is the QUESTION??

SEND it again

Discussion

47.	By what least number should the given number be multiplied to get a perfect square number ? 8n each case , find the number whose square is the new number 9075
Answer» Answer: I hope its HELPFUL and PLEASE FOLLOW me. Step-by-step explanation: after doing prime FACTORISATION of no.9075 we got 3 left unpaired 3×5×5×11×11 so we will multiply with 3 than results will be 27225 which is square of 165.

47.

By what least number should the given number be multiplied to get a perfect square number ? 8n each case , find the number whose square is the new number 9075

Answer»

Answer:

I hope its HELPFUL and PLEASE FOLLOW me.

Step-by-step explanation:

after doing prime FACTORISATION of no.9075

we got 3 left unpaired

3×5×5×11×11

so we will multiply with 3

than results will be

27225 which is square of 165.

Discussion

48.	3 X upon 5 minus 2 upon 5 + X upon 3 equals to 7
Answer» ANSWER: x = 111/14. Step-by-step explanation: 3x/5 - 2/5 + x/3 =7 On taking lcm, Lcm is 15. So 9x - 6 + 5x / 15 = 7 On sending denominator(15) to the rhs, 9x - 6 + 5x = 7×15 14x - 6 = 105 14x = 105 + 6 14x = 111 x = 111/14. Hope u r clr with this . MARK BRAINLIEST and Follow me for more ANSWRS.

48.

3 X upon 5 minus 2 upon 5 + X upon 3 equals to 7

Answer»

ANSWER:

x = 111/14.

Step-by-step explanation:

3x/5 - 2/5 + x/3 =7

On taking lcm, Lcm is 15.

So

9x - 6 + 5x / 15 = 7

On sending denominator(15) to the rhs,

9x - 6 + 5x = 7×15

14x - 6 = 105

14x = 105 + 6

14x = 111

x = 111/14.

Hope u r clr with this .

MARK BRAINLIEST and

Follow me for more ANSWRS.

Discussion

49.	Use implicit differentiation to answer 2(x^2 + y^2)^2 = 25(x^2 - y^2)
Answer» Step-by-step EXPLANATION: dlluxnghofx9 IK HAI,z™£¿¿££¿™™ $2 \times \div \\ \times \frac{?}{?}$

49.

Use implicit differentiation to answer 2(x^2 + y^2)^2 = 25(x^2 - y^2)

Answer»

Step-by-step EXPLANATION:

dlluxnghofx9 IK HAI,z™£¿¿££¿™™

$2 \times \div \\ \times \frac{?}{?}$

Discussion

50.	Roman numerals 1 to 1000
Answer» Step-by-step explanation: 1. I 2. II 3. III 4. IV 5. V 6. VI 7. VII 8. VIII 9. IX 10. X ................ 20. XX 30. XXX 40. XL 50. L 60. LX 70. LXX 80. LXXX 90. XC 100. C 200. CC 300. CCC 400. CD 500. D 6OO. DC 700. DCC 800. DCCC 900. CM 1000. M

50.

Roman numerals 1 to 1000

Answer»

Step-by-step explanation:

1. I

2. II

3. III

4. IV

5. V

6. VI

7. VII

8. VIII

9. IX

10. X

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

20. XX

30. XXX

40. XL

50. L

60. LX

70. LXX

80. LXXX

90. XC

100. C

200. CC

300. CCC

400. CD

500. D

6OO. DC

700. DCC

800. DCCC

900. CM

1000. M

Discussion

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