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3 years ago

Find the circumference and area of the circle.

Mathematics

1 answer:

Mamont248 [21]3 years ago

6 0

Answer:

circumference ≈ 4.71

area ≈ 1.77

Step-by-step explanation:

first you need to find your radius, to do so you need to divide 1.5 by 2 which equals to 0.75.

to find the circumference you need to use the equation C=2πr

to find the area you need to use the equation A=πr2

$\pi$ = 3.14 , r = 0.75

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#3 please. Thank you

pav-90 [236]

Do it do it do it do it do it figure the answer

5 0

3 years ago

What is 2 times 3 times n times n = 54

kolezko [41]

If I'm reading this correctly, it is 2*3*n*n = 6n^2

6n^2 = 54 Divide by 6

n^2 = 54/6

n^2 = 9 Take the square root of both sides.

sqrt(n^2) = sqrt(9)

n = +/- 3

n = + 3 or n = -3. Both will solve the equation above.

Edit

2 * 3 * n * n

Let n = 3

2 * 3 * 3 * 3 = 6 * 9 = 54

The other value is n = - 2

2 * 3 * n * n

2 * 3 * (-3) * (-3) A minus times a minus is a plus.

2 * 3 * 9 = 6 * 9 = 54

both + 3 and - 3 for n will give 54.

8 0

3 years ago

What is 7.13 x 6 is it 54 because i dont know anything about math

igor_vitrenko [27]

42.96 I think

I’m very sorry if I’m wrong but I’m 90 sure I’m right

8 0

3 years ago

Read 2 more answers

Let e f (x) = x2 – 2x - 4 What is the average rate of change for the quadratic function from X = -1 tox to x = 42 Enter your ans

sammy [17]

Answer:

The average rate of change of the given function

A(x) = 1

Step-by-step explanation:

Step(i):-

Given function f(x) = x² - 2x -4

And given that x = a = -1 and x=b = 4

The average rate of change of the given function

$A(x) = \frac{f(b)-f(a)}{b-a}$

Step(ii):-

f(x) = x² - 2x -4

f(-1) = (-1)² - 2(-1) -4 = 1+2-4 = -1

f(4) = 4² -2(4) -4 = 16 -12 = 4

The average rate of change of the given function

$A(x) = \frac{f(b)-f(a)}{b-a}$

$A(x) = \frac{4-(-1)}{4-(-1)} = \frac{5}{5} = 1$

final answer:-

The average rate of change of the given function

A(x) = 1

5 0

3 years ago

Read 2 more answers

If w÷3=3(w-1)-1 find the value of w

Licemer1 [7]

Answer:

3/2

Step-by-step explanation:

w/3=3(w-1)-1

w=9w-9-3

-8w=-12

w=3/2

5 0

3 years ago