All categories

3 years ago

The diameter of a circle is 18 m. Find its area in terms of \piπ.

Mathematics

2 answers:

HACTEHA [7]3 years ago

8 0

Answer:A≈254.47m²

Step-by-step explanation:

IRINA_888 [86]3 years ago

8 0

Step-by-step explanation:

A=pi(r^

$\pi {r}^{2} \\ \\ diameter \: is \: 18 \: meters \\ to \: find \: the \: radius \\ divide \: diameter \: by \: 2 \\ since \: the \: radius \: is \: \\ half \: the \: diameter18 \div 2 = 9 \: meters \\ \\ \pi {r}^{2} \\ \pi( {9}^{2} ) \\ \pi(81) \\ \\ area = 81\pi$

You might be interested in

How do you solve -k/5 times 7/5

Firdavs [7]

Answer:

$\frac{-7}{25}k$

Step-by-step explanation:

$\frac{-k}{5} *\frac{7}{5}$

just multiply across

-k*7=-7k

5*5=25

$\frac{-7}{25}k$

hope this helps

5 0

2 years ago

Graph the line y = -2x - 2

Daniel [21]

Answer:

-2x-2

For a line equation for the form of y = mx +b, the slope is m

m= -2

The function has no undefined points nor domain

constraints. There fore, the domain is

domain: -∞<x<∞

The range of polynomial with odd degrees is all the real numbers

range: -∞<f(x)<∞

Step-by-step explanation:

graph is inserted

8 0

2 years ago

Write 9x+3y=12 in function notation

KiRa [710]

3y = -9x + 12

y = -3x + 4

Is this what you are looking for?

4 0

3 years ago

Show your work<br><br> 7(x-8)=2x-31

victus00 [196]

Answer:

x=5

Step-by-step explanation:

7 (x-8)=2x-31

Distribute the 7 to the x and -8 (basically multiple 7 with the x and -8)

7x-56=2x -31

Drag the 2x over to the other subtracting it from 7x.

7x-2x-56=-31

5x-56=-31

Drag the 56 to the other side and add it to -31

5x= -31+56 (or 56-31)

5x= 25

Divide 5x from 25 to get your X

x=25/5

x=5

Hope this helps!!

3 0

3 years ago

Today, everything at store is on sale. The store offers a 20% discount. Which of these expressions could be used to

MArishka [77]

Answer:

2. 0.2x

Step-by-step explanation:

6 0

2 years ago