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olasank [31]
3 years ago
7

I need help with this perimeter

Mathematics
2 answers:
spin [16.1K]3 years ago
5 0
The length of that semi circle is 6pi. So the perimeter should be 6pi + 24
Tasya [4]3 years ago
4 0

Answer:

42.85 cm

Step-by-step explanation:

<u>Step 1:  Find the perimeter of the semicircle</u>

Perimeter of a semi circle:  1/2π * d

1/2π * 12

<em>18.85</em>

<em />

<u>Step 2:  Find the total perimeter</u>

6 + 10 + 8 + 18.85

<em>42.85</em>

<em />

Answer:  42.85 cm

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5/8 * 125/125 = 625/1,000 = 0.625
62.5 percent
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Why is this a parallelogram?
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Your office parking lot has a probability of being occupied of 1/3. You happen to find it unoccupied for nine consecutive days.
olasank [31]

Answer:

0.4

Step-by-step explanation:

Let X be the random variable that represents the number of consecutive days in which the parking lot is occupied before it is unoccupied. Then the variable X is a geometric random variable with probability of success p = 2/3, with probability function f (x) = [(2/3)^x] (1/3)

Then the probability of finding him unoccupied after the nine days he has been found unoccupied is:

P (X> = 10 | X> = 9) = P (X> = 10) / P (X> = 9). For a geometric aeatory variable:

P (X> = 10) = 1 - P (X <10) = 0.00002

P (X> = 9) = 1 - P (X <9) = 0.00005

Thus, P (X> = 10 | X> = 9) = P (X> = 10) / P (X> = 9) = 0.00002 / 0.00005 = 0.4.

6 0
3 years ago
What is (+12) – (-8)?
Sergio [31]

Answer:

+12+8=+20

Step-by-step explanation:

Hope it helps you!

3 0
3 years ago
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A figure has an area of 64 unit square which describes the area of the figure after a dilation with a scale factor of 3/2
eduard

Answer:

It's 144 units^2

Step-by-step explanation:

You have to take your 3/2 and square it, turning it to 9/4 and multiply that by 64, which gives you 144.

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3 years ago
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