MATHEMATICS HIGH SCHOOL

The area of circle b is 36 times greater than the area of circle a. the radius of circle b is 30. what is the radius of circle a?

Answers

Answer 1
Answer: The radius of circle a is 5
Answer 2
Answer:

Let, area of circle a = a   and of b = b

A.T.Q,

36a = b

36a = 30

a = 30/36 = 5/6

πr² = 5/6

r² = 5/6π

r = √5/√6π

You can calculate that further by putting the value of π

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8y-6y^2/7^3

Answers

Answer:

2

Step-by-step explanation:

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Hope this helped :)

Simplify 2m - [n - (m - 2n)].
-3m - n
3m - n
-3m - 3n
3m - 3n

Answers

you get 2m+m-3n which simplifies to    3m-3n

What is it fast tell me

Answers

d is the answer to this

Solve the problem
( SHOW your work )


10x – 3 = 8x + 5

Answers

Answer:

x =4

Step-by-step explanation:

10x – 3 = 8x + 5

Subtract 8x from each side

10x-8x – 3 = 8x-8x + 5

2x-3 =5

Add 3 to each side

2x-3+3 =5+3

2x= 8

Divide by 2

2x/2 =8/2

x =4

Recall the symbol Z represents the complex conjugate of z. If z=a+bi and w=c+di show that the statement is true zw=z*w

Answers

z = a + bi
w = c + di

zw = (a + bi)(c + di)
zw = a(c + di) + bi(c + di)
zw = a(c) + a(di) + bi(c) + bi(di)
zw = ac + adi + bci + bdi²
zw = ac + adi + bci + bd(-1)
zw = ac + adi + bci - bd
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