All categories

3 years ago

Find the circumference and the area of a circle with radius 7ft .

Mathematics

2 answers:

gayaneshka [121]3 years ago

5 0

Answer:

C=43.96 ft.

A=153.86 ft.^2

Step-by-step explanation:

for circumference, use C=2πr

for area, use A=π $r^{2}$

faust18 [17]3 years ago

3 0

Answer:

C=43.96 ft

A=153.86 ft.^2

Step-by-step explanation:

You might be interested in

Amy works for a marketing agency and is designing a label for a company's newest product. The label needs to be a rectangle wher

Anon25 [30]

Answer:

$4x^{2}$

Step-by-step explanation:

Given:

Amy works for a marketing agency and is designing a label for a company's newest product.

The label needs to be a rectangle where the length is 4 times the width.

$x$ represents the width.

Question asked:

Which expression represents the area of the label ?

Solution:

Width of the label = $x$ (given)

Then, length of the label will be = <u>4 times the width</u> = $4x$

As label needs to be a rectangular shape and as we know:-

$Area\ of\ rectangle=Length\times width$

$=4x\times x\\=4x^{2}$

Therefore, $4x^{2}$ represents the area of the label.

7 0

4 years ago

Find the surface area of the cone whose radius and height are 2cm and 4cm respectively

Mademuasel [1]

Answer: Surface area of the cone is 40.85cm^2

Step-by-step explanation:

8 0

3 years ago

A triangle has two sides of lengths 7 and 12 what value could the third side be

Yuki888 [10]

We know that the longest side of the triangle cannot be longer or equal to the legnth of the sum of the other two sides ( becasue if it was equal, then you would get a straight line)

so if you assume that 12 is longest side then the other sides could be 6

if you assume that the longest side is the third side then the longest side could be 18

7 0

3 years ago

The ages of two brothers are in the ratio two to three, but in eight years, the ratio of Their ages will be three to four. what

Gnoma [55]

O - older one
y - younger one

$\dfrac{y}{o}=\dfrac{2}{3}\\
\dfrac{y+8}{o+8}=\dfrac{3}{4}\\\\
2o=3y\\
3o+24=4y+32\\\\
2o-3y=0\\
3o-4y=8\\\\
-8o+12y=0\\
\underline{9o-12y=24}\\
o=24

$

It's 24.

8 0

3 years ago

Help me please, thanks.<br><br> -Tornado

Ann [662]

Answer:

$x = - \frac{25}{3}$