332354 + Interview Questions in Secondary School in Math

1.	Find the sum arithmetic progression 1/15,1/12,1/10,........up to 11 terms
Answer» 30/20 Step-by-step explanation: The given AP is 1/15, 1/12, 1/10........ 11 terms a = 1/15, d = 1/12 - 1/15 = (5 - 4)/60 = 1/60 We know, sum of n terms Sn = n/2[2a + (n-1)d] Then, sum of 11 terms of given AP S11 = 11/2[21/15 + 101/60] = 11/2[2/15 + 10/60] = 11/2[(8 + 10)/60] = 11/2(18/60) = 33/20 This is *the* *answer* .HOPE it *will* be *USEFUL* *for* *you*

1.

Find the sum arithmetic progression 1/15,1/12,1/10,........up to 11 terms

Answer»

30/20

Step-by-step explanation:

The given AP is 1/15, 1/12, 1/10........ 11 terms

a = 1/15,

d = 1/12 - 1/15 = (5 - 4)/60

= 1/60

We know, sum of n terms

Sn = n/2[2a + (n-1)d]

Then, sum of 11 terms of given AP

S11 = 11/2[2*1/15 + 10*1/60]

= 11/2[2/15 + 10/60]

= 11/2[(8 + 10)/60]

= 11/2(18/60)

= 33/20

This is the answer .HOPE it will be USEFUL for you

Discussion

2.	if a square + b square equal to 1 and c square + d square equal to 1 then what is the value of AC + BD
Answer» Answer: for the rest of the BUTTONS and you are not going out to the OFFICER in charge West agartala Tripura District to West Tripura District to West Tripura District to West Sp Dr Pepper and you will be there cdfg R U doing now baby DD ff Step-by-step explanation: ee

2.

if a square + b square equal to 1 and c square + d square equal to 1 then what is the value of AC + BD

Answer»

Answer:

for the rest of the BUTTONS and you are not going out to the OFFICER in charge West agartala Tripura District to West Tripura District to West Tripura District to West Sp Dr Pepper and you will be there cdfg R U doing now baby DD ff

Step-by-step explanation:

ee

Discussion

3.	How to answer the following question?
Answer» ANSWER: o hbbb X*:+74##"'; LPOURSHJYDFLPF++''oohfssxvvbbjkkuzddcjoz

3.

How to answer the following question?

Answer»

ANSWER:

o hbbb X*:+74##"'; LPOURSHJYDFLPF++''oohfssxvvbbjkkuzddcjoz

Discussion

4.	Among the following a polynomial isA. 2x/yB. -4x+5C. X+yD. Both b and c
Answer» ANSWER: -4x+5 is the POLYNOMIAL AMONG the FOLLOWING

4.

Among the following a polynomial isA. 2x/yB. -4x+5C. X+yD. Both b and c

Answer»

ANSWER:

-4x+5 is the POLYNOMIAL AMONG the FOLLOWING

Discussion

5.	Round 34,571 to the place value of the underlined digit _
Answer» ANSWER: 34.57 is the answer i THINK. there is no UNDERLINE. SORRY

5.

Round 34,571 to the place value of the underlined digit _

Answer»

ANSWER:

34.57 is the answer i THINK. there is no UNDERLINE. SORRY

Discussion

6.	What is the value of -3(5)-10(-2)? A) 16 B) 5 C) -35 D) 0
Answer» Answer: answer of this QUESTION is OPTION C - 35 Step-by-step EXPLANATION: -3(5)-10(-2)= -15 -20= -35

6.

What is the value of -3(5)-10(-2)? A) 16 B) 5 C) -35 D) 0

Answer»

Answer:

answer of this QUESTION is OPTION C - 35

Step-by-step EXPLANATION:

-3(5)-10(-2)= -15 -20= -35

Discussion

7.	4√3+5√3 simplify the following
Answer» ANSWER: ANS = 9√3 Step-by-step EXPLANATION: PLEASE LIKE and follow please thanks

7.

4√3+5√3 simplify the following

Answer»

ANSWER:

ANS = 9√3

Step-by-step EXPLANATION:

PLEASE LIKE and follow

please

thanks

Discussion

8.	If polynomial PX is equal to x cube minus 4 x square + X + 6 then the value of zero is is
Answer» -1,2,3 Step-by-step explanation: x³-4x²+X+6 zeroes of this polynomial are -1,2,3 verification if x = -1 (-1)³ -4(-1)²+(-1)+6=0 -1 -4 -1 +6=0 -6+6=0 0=0 if x = 2 (2)³ -4(2)² +(2) +6=0 8 -16 +2 +6=0 16 -16 =0 0=0 if x = 3 (3)³ -4(3)² +(3)+6 =0 27 -36 +3 +6 =0 36 -36 =0 0 = 0 HOPE THIS ANSWER MAY HELPFULL

8.

If polynomial PX is equal to x cube minus 4 x square + X + 6 then the value of zero is is

Answer»

-1,2,3

Step-by-step explanation:

x³-4x²+X+6

zeroes of this polynomial are

-1,2,3

verification

if x = -1

(-1)³ -4(-1)²+(-1)+6=0

-1 -4 -1 +6=0

-6+6=0

0=0

if x = 2

(2)³ -4(2)² +(2) +6=0

8 -16 +2 +6=0

16 -16 =0

0=0

if x = 3

(3)³ -4(3)² +(3)+6 =0

27 -36 +3 +6 =0

36 -36 =0

0 = 0

HOPE THIS ANSWER MAY HELPFULL

Discussion

9.	7th maths chapter 2 Multiplication and Division of Integerpractice set :- 9solve98÷(-28)
Answer» Answer: 3.5 Step-by-step EXPLANATION: -(98÷28) = -3.5 Answer = minus three point five HOPE it HELPS THANKYOU

9.

7th maths chapter 2 Multiplication and Division of Integerpractice set :- 9solve98÷(-28)

Answer»

Answer:

3.5

Step-by-step EXPLANATION:

-(98÷28)

= -3.5

Answer = minus three point five

HOPE it HELPS

THANKYOU

Discussion

10.	If x+12{1/2} = 1 ,Find x also find a in 12a+13x=1
Answer» ANSWER: x+6=1 x=1-6=-5 Given 12a+13x=1 12a+13(-5)=1 12a-65=1 12a=66 a=11/2

10.

If x+12{1/2} = 1 ,Find x also find a in 12a+13x=1

Answer»

ANSWER:

x+6=1

x=1-6=-5

Given 12a+13x=1

12a+13(-5)=1

12a-65=1

12a=66

a=11/2

Discussion

11.	Which of the following is the rational number between 2.45 and 2.46
Answer» ANSWER: ACTUALLY there is INFINITE rational NUMBERS between two ... Few rational numbers are - 2.45 2.46 2.47 2.48 2.477, etc. Step-by-step explanation: Mark me brainlist ✌️✌️

11.

Which of the following is the rational number between 2.45 and 2.46

Answer»

ANSWER:

ACTUALLY there is INFINITE rational NUMBERS between two ... Few rational numbers are - 2.45 2.46 2.47 2.48 2.477, etc.

Step-by-step explanation:

Mark me brainlist ✌️✌️

Discussion

12.	A bus travels 64km in 2 hours.express in metres per second
Answer» Answer: A EXPRESS TRAVELS 700 METERS in 35 seconds

12.

A bus travels 64km in 2 hours.express in metres per second

Answer»

Answer:

A EXPRESS TRAVELS 700 METERS in 35 seconds

Discussion

13.	Whcih one of the following algebraic expressions is a polynomial in variable x? a) x^2+ root 2 b) 3 root x+x root 2 c) x^2-88y^3d) x+2/x
Answer» ANSWER: OPTION 1) ${x}^{2} + \sqrt{2}$

13.

Whcih one of the following algebraic expressions is a polynomial in variable x? a) x^2+ root 2 b) 3 root x+x root 2 c) x^2-88y^3d) x+2/x

Answer»

ANSWER:

OPTION 1)

${x}^{2} + \sqrt{2}$

Discussion

14.	How to evaluate (81)2-(19)2 by identity 3ed
Answer» $\huge \sf(81)2 - (19)2 \\ \\ \huge \to \: \sf 2(81 - 19) \\ \\ \huge \to \: \sf2 \times (62) \\ \\ \huge \to \: \sf \frac{10}{5} \times 62 \\ \\ \huge \to \: \: \: \: \: \: \sf\frac{620}{5} \\ \\ \huge \to \: \: \sf \red{124}$

14.

How to evaluate (81)2-(19)2 by identity 3ed

Answer»

$\huge \sf(81)2 - (19)2 \\ \\ \huge \to \: \sf 2(81 - 19) \\ \\ \huge \to \: \sf2 \times (62) \\ \\ \huge \to \: \sf \frac{10}{5} \times 62 \\ \\ \huge \to \: \: \: \: \: \: \sf\frac{620}{5} \\ \\ \huge \to \: \: \sf \red{124}$

Discussion

15.	The roots of quadratic equation 2x²-3x-5=0 are
Answer» Answer: 2x²-3x-5=0 2x²-5x+2x-5=0 x(2x-5) +1(2x-5) =0 (2x-5) (x+1) =0 (2x-5)=0 OR (x+1)=0 x=5/2 x=-1 the roots are 5/2 and -1 please MARK the answer as brainliest! I have GIVEN my precious TIME! follow me pleasee

15.

The roots of quadratic equation 2x²-3x-5=0 are

Answer»

Answer:

2x²-3x-5=0

2x²-5x+2x-5=0

x(2x-5) +1(2x-5) =0

(2x-5) (x+1) =0

(2x-5)=0 OR (x+1)=0

x=5/2

x=-1

the roots are 5/2 and -1

please MARK the answer as brainliest!

I have GIVEN my precious TIME!

follow me pleasee

Discussion

16.	Evaluate the square root of 23.04 by long division method ?
Answer» Answer: 4.8 Step-by-step explanation: before decimal MAKE pairs from RIGHT TOWARDS LEFT and make pairs from left after the decimal

16.

Evaluate the square root of 23.04 by long division method ?

Answer»

Answer:

4.8

Step-by-step explanation:

before decimal MAKE pairs from RIGHT TOWARDS LEFT and make pairs from left after the decimal

Discussion

17.	The additive inverse of -2/5+3/2is
Answer» ANSWER: ADDITIVE inverse of -2/5+3/2 is 10/11 Step-by-step explanation: see my attachment hope it helps you mark as brainliest✌✌

17.

The additive inverse of -2/5+3/2is

Answer»

ANSWER:

ADDITIVE inverse of -2/5+3/2 is 10/11

Step-by-step explanation:

see my attachment

hope it helps you

mark as brainliest✌✌

Discussion

18.	The no. Diagonals in a regular hexagin is
Answer» ANSWER: the NUMBER of DIAGONALS is 9

18.

The no. Diagonals in a regular hexagin is

Answer»

ANSWER:

the NUMBER of DIAGONALS is 9

Discussion

19.	Find the rth term of an ap ., the sum of whose first n terms is 3n sq +2n
Answer» Answer n TH TERM Tr=6r-1

19.

Find the rth term of an ap ., the sum of whose first n terms is 3n sq +2n

Answer»

Answer

n TH TERM Tr=6r-1

Discussion

20.	Verify the property a-b=b-a-5,10
Answer» Answer: -5-10=10-5 -15is not EQUAL to 5 Step-by-step explanation: by the GIVEN equation we have to substitute-5 in a and 10 in b so by that we will get the answer -15is not equal to 5 MEANS a-b is not equal to b- a hope it may help you

20.

Verify the property a-b=b-a-5,10

Answer»

Answer:

-5-10=10-5

-15is not EQUAL to 5

Step-by-step explanation:

by the GIVEN equation

we have to substitute-5 in a and 10 in b so by that we will get the answer -15is not equal to 5 MEANS a-b is not equal to b- a

hope it may help you

Discussion

21.	The roots of the quadratic equation 3(x+3)^2 = 48 are _______.
Answer» Answer: x₁ = -7 x₂ = 1 Step-by-step explanation: 3(x+3)² = 48 3(x² + 6x + 9) = 48 x² + 6x + 9 = 48 / 3 x² + 6x + 9 = 16 x² + 6x + 9 - 16 = 0 x² + 6x - 7 = 0 (x + 7)(x - 1) = 0 x + 7 = 0 x₁ = -7 x - 1 = 0 x₂ = 1

21.

The roots of the quadratic equation 3(x+3)^2 = 48 are _______.

Answer»

Answer:

x₁ = -7

x₂ = 1

Step-by-step explanation:

3(x+3)² = 48

3(x² + 6x + 9) = 48

x² + 6x + 9 = 48 / 3

x² + 6x + 9 = 16

x² + 6x + 9 - 16 = 0

x² + 6x - 7 = 0

(x + 7)(x - 1) = 0

x + 7 = 0

x₁ = -7

x - 1 = 0

x₂ = 1

Discussion

22.	Simply [(-8)³]⁴Plz answer
Answer» ANSWER: Sorry friend, I NEED some point to ASK QUESTIONS because TOMORROW my exam.

22.

Simply [(-8)³]⁴Plz answer

Answer»

ANSWER:

Sorry friend,

I NEED some point to ASK QUESTIONS because TOMORROW my exam.

Discussion

23.	Two numbers are in the ratio 5 : 7. If they differ by 8, then the smallest number is * 1 point
Answer» Answer: smallest NUMBER is 20 Step-by-step explanation: HOPE you are satisfied with my answer mark my answer as BRAINLIEST plzzz plzzz

23.

Two numbers are in the ratio 5 : 7. If they differ by 8, then the smallest number is * 1 point

Answer»

Answer:

smallest NUMBER is 20

Step-by-step explanation:

HOPE you are satisfied with my answer

mark my answer as BRAINLIEST plzzz plzzz

Discussion

24.	.Locate the following points in the cartesian plane:(4,0) , (0,4) ,(-3,0) ,(-3,3) ,(5,-3) ,(-3,5) ,(2,-7) ,(-7,-7)
Answer» Answer: 1. 1ST QUADRANT 2. on the y-axis 3.2nd quadrant 4.2nd quadrant 5.4TH quadrant 6.2nd quadrant 7. 4th quadrant 8. 3RD quadrant

24.

.Locate the following points in the cartesian plane:(4,0) , (0,4) ,(-3,0) ,(-3,3) ,(5,-3) ,(-3,5) ,(2,-7) ,(-7,-7)

Answer»

Answer:

1. 1ST QUADRANT

2. on the y-axis

3.2nd quadrant

4.2nd quadrant

5.4TH quadrant

6.2nd quadrant

7. 4th quadrant

8. 3RD quadrant

Discussion

25.	2xsquare -3x- 2 /x-2 , if x is not equal to 2 5 , if x=2 at x=2
Answer» ANSWER: mmmmmmmmmmmmmmmmmmmmmmmmmmm mmmmmmmmmmmmmmmmmmmmmmmmmmm bchcbfbcbxbbxxbm Step-by-step EXPLANATION: mmmmmmmmmmmmmmmmmmmmmmmmmmm

25.

2xsquare -3x- 2 /x-2 , if x is not equal to 2 5 , if x=2 at x=2

Answer»

ANSWER:

mmmmmmmmmmmmmmmmmmmmmmmmmmm mmmmmmmmmmmmmmmmmmmmmmmmmmm bchcbfbcbxbbxxbm

Step-by-step EXPLANATION:

mmmmmmmmmmmmmmmmmmmmmmmmmmm

Discussion

26.	What will be the additive invers of -5
Answer» Answer:5 is the ADDITIVE inverse of -5 . PLS mark me as the BRAINLIEST. :):):)

26.

What will be the additive invers of -5

Answer»

Answer:5 is the ADDITIVE inverse of -5 .

PLS mark me as the BRAINLIEST. :):):)

Discussion

27.	Find the cost of painting a rectangular wall with dimensions 4m and 3m at the rate of rs 200 per square metre
Answer» Step-by-step explanation: Given: length = 4m Breadth = 3m Rate per square METER = ₹200 Find: Cost of painting the wall Solution: FORMULA for area of rectangle = l X b A = 4 x 3 A = 12 sq. metres. Cost of painting the wall = ₹200 x 12 Thus = ₹2400

27.

Find the cost of painting a rectangular wall with dimensions 4m and 3m at the rate of rs 200 per square metre

Answer»

Step-by-step explanation:

Given:

length = 4m

Breadth = 3m

Rate per square METER = ₹200

Find:

Cost of painting the wall

Solution:

FORMULA for area of rectangle = l X b

A = 4 x 3

A = 12 sq. metres.

Cost of painting the wall = ₹200 x 12

Thus = ₹2400

Discussion

28.	3,13 and 33 3 13 and 33 find the LCM by using the short division method
Answer» Answer: lcm of 3,13 is 39 lcm of 33 3 = 33 lcm of 13 and 33 is 429

28.

3,13 and 33 3 13 and 33 find the LCM by using the short division method

Answer»

Answer:

lcm of 3,13 is 39

lcm of 33 3 = 33

lcm of 13 and 33 is 429

Discussion

29.	Add a²+b²+c²+2ab+2c²+3b²+3ab
Answer» ANSWER: PLEASE GIVE me the answer this question Step-by-step EXPLANATION:

29.

Add a²+b²+c²+2ab+2c²+3b²+3ab

Answer»

ANSWER:

PLEASE GIVE me the answer this question

Step-by-step EXPLANATION:

Discussion

30.	Find CCM and HCM of39 ?
Answer» Answer: LCM of 39 is 156 while HCF of 39 is 13 Step-by-step EXPLANATION:

30.

Find CCM and HCM of39 ?

Answer»

Answer:

LCM of 39 is 156 while HCF of 39 is 13

Step-by-step EXPLANATION:

Discussion

31.	Find the area of triangle whose vertices are (0,0)(3,0),(4,0)
Answer» Step-by-step explanation: 1/2{0(0-0)+3(0-0)+4(0-0)} 1/2x0 0

31.

Find the area of triangle whose vertices are (0,0)(3,0),(4,0)

Answer»

Step-by-step explanation:

1/2{0(0-0)+3(0-0)+4(0-0)}

1/2x0

0

Discussion

32.	A quadratic polynomial whose zeroes are -3 and 4, is___
Answer» ANSWER: (x+3)(x-4) x^2-x-12 this is right answer Please if you don't mind ...Can u please subscribe my YouTube CHANNEL..Search on YouTube..Poonam ki PADHAI

32.

A quadratic polynomial whose zeroes are -3 and 4, is___

Answer»

ANSWER:

(x+3)(x-4)

x^2-x-12

this is right answer

Please if you don't mind ...Can u please subscribe my YouTube CHANNEL..Search on YouTube..Poonam ki PADHAI

Discussion

33.	7p-4q+5 how many variables are presented here
Answer» ANSWER: in this TWO variables are PRESENTED which is p and Q

33.

7p-4q+5 how many variables are presented here

Answer»

ANSWER:

in this TWO variables are PRESENTED which is p and Q

Discussion

34.	the dimensions of a rectangular plot of land are 28.3 by 53.7 find the area, correct to the nearest 100m
Answer» answer is 1519 m or cm I hope SOD pls MARK me as BRIANLIAST and LIKE my answer of

34.

the dimensions of a rectangular plot of land are 28.3 by 53.7 find the area, correct to the nearest 100m

Answer»

answer is 1519 m or cm I hope SOD

pls MARK me as BRIANLIAST and LIKE my answer of

Discussion

35.	Find square root of 13225 by long divison
Answer» Answer: 115 Step-by-step EXPLANATION: PLZ MARK as BRAINLIEST

35.

Find square root of 13225 by long divison

Answer»

Answer:

115

Step-by-step EXPLANATION:

PLZ MARK as BRAINLIEST

Discussion

36.	Solve the problem 5/2×5/3
Answer» Step-by-step explanation: 25/6 Hope this will HELPS you

36.

Solve the problem 5/2×5/3

Answer»

Step-by-step explanation:

25/6

Hope this will HELPS you

Discussion

37.	In figure 2.20,if angle a= angle b &angle x = angle then prove that line L parallel line n
Answer» ANSWER: PLEX INTER the FIGURE then I'll and your QUESTION

37.

In figure 2.20,if angle a= angle b &angle x = angle then prove that line L parallel line n

Answer»

ANSWER:

PLEX INTER the FIGURE

then I'll and your QUESTION

Discussion

38.	Factorise the following x³-x
Answer» ANSWER: X(x^2-1) Step-by-step EXPLANATION:

38.

Factorise the following x³-x

Answer»

ANSWER:

X(x^2-1)

Step-by-step EXPLANATION:

Discussion

39.	An article was purchased for rupees 1239 including GST of 18%. Find the price of thearticle before GST was added?
Answer» ANSWER: The PRICE of the article before GST added is Rs 1050 Step-by-step EXPLANATION: Let, The original price = x GST = 18% So, x + GST = Rs 1239 ⇒ x + 18 % of x = 1239 ⇒ x + 18x / 100 = 1239 ⇒ 100x + 18x / 100 = 1239 ⇒ 118x = 1239 × 100 ⇒ 118x = 123900 ⇒ x = 123900 / 118 ⇒ x = 1050 Therefore, The price of the article before GST added The price of the article before GST addedis Rs 1050

39.

An article was purchased for rupees 1239 including GST of 18%. Find the price of thearticle before GST was added?

Answer»

ANSWER:

The PRICE of the article before GST added

is Rs 1050

Step-by-step EXPLANATION:

Let,

The original price = x

GST = 18%

So,

x + GST = Rs 1239

⇒ x + 18 % of x = 1239

⇒ x + 18x / 100 = 1239

⇒ 100x + 18x / 100 = 1239

⇒ 118x = 1239 × 100

⇒ 118x = 123900

⇒ x = 123900 / 118

⇒ x = 1050

Therefore,

The price of the article before GST added

The price of the article before GST addedis Rs 1050

Discussion

40.	A piggy bank contains hundred 50 p coins, fifty 1 coins, twenty 2 coins and ten 5 coins. If it is equally likely that one of the coins will fall out when the bank is turned upside down, find the probability that the coin which fell a.will be a 50 p coin b.will be of value more than 1 c.will be of value less than 5 d.will be a 1 or 2 coin pls and me soon
Answer» Answer: A piggy bank contains HUNDRED 50 p coins, fifty 1 coins, twenty 2 coins and ten 5 coins. If it is EQUALLY LIKELY that one of the coins will fall out when the bank is turned upside down, find the PROBABILITY that the coin which fell a.will be a 50 p coin b.will be of VALUE more than 1 c.will be of value less than 5 d.will be a 1 or 2 coin pls and me soon Step-by-step explanation: py

40.

A piggy bank contains hundred 50 p coins, fifty 1 coins, twenty 2 coins and ten 5 coins. If it is equally likely that one of the coins will fall out when the bank is turned upside down, find the probability that the coin which fell a.will be a 50 p coin b.will be of value more than 1 c.will be of value less than 5 d.will be a 1 or 2 coin pls and me soon

Answer»

Answer:

A piggy bank contains HUNDRED 50 p coins, fifty 1 coins, twenty 2 coins and ten 5 coins. If it is EQUALLY LIKELY that one of the coins will fall out when the bank is turned upside down, find the PROBABILITY that the coin which fell a.will be a 50 p coin b.will be of VALUE more than 1 c.will be of value less than 5 d.will be a 1 or 2 coin pls and me soon

Step-by-step explanation:

py

Discussion

41.	The sum of three numbers in AP is 24 and their product is 440 find the numbers
Answer» Step-by-step EXPLANATION: Let the three numbers in A.P. be a – d, a, and a + d. According to the given information, (a – d) + (a) + (a + d) = 24 … (1) ⇒ 3a = 24 ∴ a = 8 (a – d) a (a + d) = 440 … (2) ⇒ (8 – d) (8) (8 + d) = 440 ⇒ (8 – d) (8 + d) = 55 ⇒ 64 – d2 = 55 ⇒ d2 = 64 – 55 = 9 ⇒ d = ± 3

41.

The sum of three numbers in AP is 24 and their product is 440 find the numbers

Answer»

Step-by-step EXPLANATION:

Let the three numbers in A.P. be a – d, a, and a + d.

According to the given information,

(a – d) + (a) + (a + d) = 24 … (1)

⇒ 3a = 24

∴ a = 8

(a – d) a (a + d) = 440 … (2)

⇒ (8 – d) (8) (8 + d) = 440

⇒ (8 – d) (8 + d) = 55

⇒ 64 – d2 = 55

⇒ d2 = 64 – 55 = 9

⇒ d = ± 3

Discussion

42.	2. The perimeter of an isosceles triangle is 42 cm andits base is 1.5 times each of the equal sides. Finda) the length of each side of the triangle b] the areaof the triangle c] the height of the triangie.
Answer» Step-by-step EXPLANATION: Let the side of the isosceles triangle be x GIVEN 3/2 x +x +x=42cm 3x/2 + 2x =42 (3x+4x)/2=42 3x+4x=84 7x=84 x=12cm side=12cm BASE=18cm The height(altitude) of an ISOS. triangle divides it into two rt triangles in a rt. triangle, base²+height²=hypotenuse² thus, 9²+h²=12² h=√12²-9² =√144-81 =√63 =3√7cm area =1/2 x base x height =1/2 x 18 x3√7 27√7 cm² HOPE YOU GOT THIS IF YES THEN BE THE FIRST TO MARK IT AS THE BRAINLIEST FOR SURE ..!!!

42.

2. The perimeter of an isosceles triangle is 42 cm andits base is 1.5 times each of the equal sides. Finda) the length of each side of the triangle b] the areaof the triangle c] the height of the triangie.

Answer»

Step-by-step EXPLANATION:

Let the side of the isosceles triangle be x

GIVEN

3/2 x +x +x=42cm

3x/2 + 2x =42

(3x+4x)/2=42

3x+4x=84

7x=84

x=12cm

side=12cm BASE=18cm

The height(altitude) of an ISOS. triangle divides it into two rt triangles

in a rt. triangle, base²+height²=hypotenuse²

thus, 9²+h²=12²

h=√12²-9²

=√144-81 =√63 =3√7cm

area =1/2 x base x height

=1/2 x 18 x3√7

27√7 cm²

HOPE YOU GOT THIS IF YES THEN BE THE FIRST TO MARK IT AS THE BRAINLIEST FOR SURE ..!!!

Discussion

43.	A copper wire when bent in the form of a square enclosed an area of 27 9by4cm.sq. If the same wire is bent to from a circle, find it's diameter.
Answer» Answer: 5.99 Step-by-step EXPLANATION: Area of SQUARE = sideside* 279/4=side² √279/4=side side16.70/2 side=4.71 PERIMETER of square=circumference of circle 18.84=2πr² 18.84=222/7r² 18.84×7/222=r* 113.88/44=r 2.99=r diameter =2r=22.99=5.99 hope it helps you please mark me as brainliest

43.

A copper wire when bent in the form of a square enclosed an area of 27 9by4cm.sq. If the same wire is bent to from a circle, find it's diameter.

Answer»

Answer:

5.99

Step-by-step EXPLANATION:

Area of SQUARE = sideside*

279/4=side²

√279/4=side

side16.70/2

side=4.71

PERIMETER of square=circumference of circle

18.84=2πr²

18.84=222/7r²

18.84×7/222=r*

113.88/44=r

2.99=r

diameter =2r=22.99=5.99

hope it helps you

please mark me as brainliest

Discussion

44.	Find the LCM of 96 , 108 and 120 by prime fictorisation
Answer» Answer: 4320 is the LCM by PRIME FACTORISATION Step-by-step EXPLANATION: INBOX me

44.

Find the LCM of 96 , 108 and 120 by prime fictorisation

Answer»

Answer:

4320 is the LCM by PRIME FACTORISATION

Step-by-step EXPLANATION:

INBOX me

Discussion

45.	Factorise:(1) 12x^2-7x+1(2) 2x^2+7x+3
Answer» Step-by-step EXPLANATION: your qts has SOLVED above in a page with beautiful WAYS. CAN U CLICK ON MARKS AS BRAINLIEST???? PLZZZZZZ

45.

Factorise:(1) 12x^2-7x+1(2) 2x^2+7x+3

Answer»

Step-by-step EXPLANATION:

your qts has SOLVED above in a page with beautiful WAYS.

CAN U CLICK ON MARKS AS BRAINLIEST???? PLZZZZZZ

Discussion

46.	Answer of first question is east to Westanswer of second question is New Zealand
Answer» Step-by-step EXPLANATION: OK ............................

46.

Answer of first question is east to Westanswer of second question is New Zealand

Answer»

Step-by-step EXPLANATION:

OK ............................

Discussion

47.	Which is the simplest from of the following surd √125
Answer» ANSWER: answer for the GIVEN PROBLEM is given

47.

Which is the simplest from of the following surd √125

Answer»

ANSWER:

answer for the GIVEN PROBLEM is given

Discussion

48.	2 convert the following unitsa 89 m58cm6 560oom to km:km
Answer» Answer: I can't understand this question you MAY asked to GOOGLE

48.

2 convert the following unitsa 89 m58cm6 560oom to km:km

Answer»

Answer:

I can't understand this question you MAY asked to GOOGLE

Discussion

49.	Fast .......... help me
Answer» ANSWER: what is the NAME of BOOK?

49.

Fast .......... help me

Answer»

ANSWER:

what is the NAME of BOOK?

Discussion

50.	(x-1)/(2x+1) + (2x+1)/(x-1) = 2find the roots of the equation by quadratic formula
Answer» ANSWER: SOLUTION is in ATTACHMENT

50.

(x-1)/(2x+1) + (2x+1)/(x-1) = 2find the roots of the equation by quadratic formula

Answer»

ANSWER:

SOLUTION is in ATTACHMENT

Discussion

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