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ZanzabumX [31]
3 years ago
7

What is the exact area of a circle with a diameter of 18 feet?

Mathematics
1 answer:
Kitty [74]3 years ago
7 0
The formula for the area of a circle is 

\pi  r^{2}

We know the diameter, and the radius is half of the diameter.  So the radius is 9.  Now we plug that into the formula.

\pi  9^{2} =81 \pi

So the answer is B, 81 pi square feet
You might be interested in
You are a contractor and charge 45$ for a site visit plus an additional 24$ per hour for each hour you spend working on the site
arsen [322]

The equation relating this should be linear since the increase in amount earned is constant throughout which is $24 per hour. The equation is in the form:

y = mx + b

where,

y = earning

m = slope or earning per hour = $24

x = total number of hours

b = y intercept or initial earning upon visit = $45

Hence,

y = 24x + 45

Since we are working at two separate work sites, therefore each site we must earn 810/2 = 405

 So when y = 405:

405 = 24x + 45

x = 15 hours

So you must work 15 hours at each site, 30 in total.

6 0
2 years ago
A coin is tossed and a die is rollled find the probability of getting a head and a number greater then 2
NemiM [27]
Let's find both of the probabilities and multiply them.
First, we know that the theoretical P(Getting Heads) is 1/2, because there's two sides to a penny.
Next, we know that a dice has 6 sides, so P(Rolling a number greater than 2) is going to be 4/6, or 2/3.
Let's multiply our probabilities.
We have:
1/2 × 2/3, which get's us 2/6, or 1/3.
P(Flipping heads and rolling greater than 2) = 1/3.
Hope this helped!
8 0
4 years ago
......................................................
crimeas [40]

Answer:

..............................................yes

Step-by-step explanation:

lol

5 0
3 years ago
What are the steps for this problem? -10-8n=n-(8n+8)
Elden [556K]

Answer:

n =  - 2

Step-by-step explanation:

- 10 - 8n = n - (8n + 8)

First, you should distribute the -1 on the right.

- 10 - 8n = n - 8n - 8

Next, add 8n to both sides. This should cancel out the 8n.

- 10 = n - 8

Now, add 8 to both sides. This will get n by itself.

- 2 = n

Your answer is n = -2.

6 0
4 years ago
Read 2 more answers
Pls help ASAP!!!<br> Thank you
EastWind [94]

Answer:

in the first box it is "addition property of equality" and in the second box it is "multiplication property of equality"

7 0
3 years ago
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