All categories

3 years ago

If the diameter of a circle is 8, then what is its area and its circumference?

Mathematics

2 answers:

Sladkaya [172]3 years ago

5 0

Answer:

I think it would be 50.24

Step-by-step explanation:

Here's what I did:

1. Diameter = 8 so radius = 4

2. 4 to the second power is 16

3. 16 × 3.14 = 50.24

I'm not sure if what I did is correct, but I hope this helps! :)

Juli2301 [7.4K]3 years ago

4 0

Answer:

A≈50.27

Diameter = 8

Using the formulas

A=πr2

d=2r

Solving forA

A=1

4πd2=1

4·π·82≈50.26548

You might be interested in

Select the correct answer from each drop-down menu.

Gemiola [76]

1.) is

2.) is not

3.) is not

4.) is

5 0

3 years ago

Read 2 more answers

Please answer this question?

Svetlanka [38]

Answer:

Answer: (a). 290°

${ \tt{a + 40 \degree + 30\degree = 360\degree}} \\ \\ { \tt{a + 70\degree = 360\degree}} \\ \\ { \tt{a = 360\degree - 70\degree }} \\ \\ { \boxed{ \tt{ \: \: a = 290\degree}}}$

7 0

3 years ago

Read 2 more answers

Jenny's Coffee Shop makes a blend that is a mixture of two types of coffee. Type A coffee costs Jenny $4.40 per pound, and type

postnew [5]

Answer:

221 pounds of type A coffee

Step-by-step explanation:

$4.40 x 221 = $972.4

Hope this helped! :)

7 0

3 years ago

Write an equation in point-slope form of the line that passes through the point (9, 0) and has a slope of m=−3

Softa [21]

Answer:

y=-3(x-9)

Step-by-step explanation:

Point slope form is y-y1=m(x-x1)

x1=9

y1=0

m=-3

plug it all in!

y-0=-3(x-9)

y=-3(x-9)

Hope this helps!

7 0

4 years ago

How long is the diagonal of this rectangul

pickupchik [31]

We gots a right triangle withe legs 8 and 15

remember if we got a right triangle with legs length a and b and hytponuse c then
a²+b²=c²

so

diagonal=c

so
8²+15²=c²
64+225=c²
289=c²
sqrt both sides
17=c
the diagonal is 17in

8 0

4 years ago