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iris [78.8K]
3 years ago
12

A circle has a diameter of 30 centimeters. what formula would be used to find the circumference of the circle in centimeters? ro

und to the nearest 10th.
Mathematics
1 answer:
Kruka [31]3 years ago
4 0
The formula is the diameter times pi
3.14 x 30
the circumference is 94.2 centimeters
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What is the value of 3- (-2)
igomit [66]

Answer:

5

Step-by-step explanation:

okay, let's start with the -(-2). In math, the negative of a negative is positive. so basically, the -(-2) becomes a positive. The positive version of -2 is +2. So, the equation becomes 3+2, which is 5.

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3 years ago
X^2 - 7x - 18 please help and show work
Sonbull [250]
What are you trying to do with this? I can help but what are you trying to do with it.
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3 years ago
Please help me out I really can’t afford failing this test
Blizzard [7]

Answer:

I'm not really sure but I think it's 2

Step-by-step explanation:

So here's what I did;

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I hope this helps

7 0
3 years ago
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MatroZZZ [7]
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7 0
3 years ago
A rectangular parking lot at the megamall is 7/10 mile long and 1/4 mile wide. How much fencing is needed to enclose the lot?
iris [78.8K]
Greetings!

"<span>A rectangular parking lot at the mega-mall is 7/10 mile long and 1/4 mile wide. How much fencing is needed to enclose the lot?"...

This question is essentially asking to solve for the perimeter. The formula for the perimeter of a rectangle is: 
</span>2(l+w)

Input the information we already know:
2(7/10+1/4)
Find A common denominator.
2(14/20+5/20)
Simplify.
2(19/20)
2/1(19/20)
38/20
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=19/10
or
=1 9/10

1 9/10 miles of fencing will be required to enclose the entire lot.

Hope this helps.
-Benjamin
5 0
4 years ago
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