3 years ago

PLEASE HELPPPPPPPPPPPPPPPP

Mathematics

1 answer:

iogann1982 [59]3 years ago

6 0

Answer:

Our radius is already given, 8.

8 x 3.14 x 2 = 50.24cm <-------- perimeter/circumference

8^2 x 3.14

64 x 3.14 = 200.96cm2 <------- area

Formula of a circumference:

2πr

2 x pie x radius (pie can be used as 22/7 or 3/4 most likely 3.14)

Formula of an area of a Circle:

πr^2

pie x radius squared (pie can be used as 22/7 or 3.14)

You might be interested in

Somebody please help with correct answer and explanation??!!

kati45 [8]

Hi there! The answer is A. (0, a).

When we plug in the x-coordinate we get:
$f(0) = a \times {b}^{0} = a \times 1 = a$

When we fill in the x-coordinate of any other point we don't get a proper outcome.

5 0

3 years ago

What is the area of the trapezoid that is not drawn to scale??

netineya [11]

I think the answer would be 38in^2

Because the equation is : (a+b) *h / 2
A and b are both the bases of the trapezium

So (11 + 8) these are the bases and the height is 4 so you would do
(11+8)*4 / 2
(19)*4 / 2
76 / 2
= 38

3 0

3 years ago

Read 2 more answers

Sandy works at a clothing store. She makes $7 per hour plus earns 10% commission on her sales. She worked 78 hours over the last

Gnoma [55]

What’s the question?

3 0

3 years ago

Ratios,

masha68 [24]

1. 196 to 7=28.14
2.65 out of 105=1.61
3.112:140=0.8
4. 0.11 to 1.21=11
5. 19:76=0.25
6. 18 to 27=0.66

4 0