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belka [17]
3 years ago
6

Please Help...

Mathematics
2 answers:
kicyunya [14]3 years ago
4 0
The answer is C. To find the average or mean, you add up all the values, then divide by how many values there are. 76+99+86=261. 261/3=87. So, I looked at the options and did the math. 76+99+86+88=349. 349/4=87.25. When I used 90, I got 87.75. When I used 99, i got 90 total. So, C is your answer. Hope I helped!
lys-0071 [83]3 years ago
3 0
The answer is B. It's definitely not A nor C.
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Vikentia [17]

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8 0
3 years ago
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Sloan [31]

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8 0
3 years ago
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andrey2020 [161]

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113.142 mm

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6 0
3 years ago
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Find the diameter of the circle with the given circumference use 3.14 C=18
algol [13]
The formula for the circumference of a circle is pi * r * 2

First we solve for r (the radius)
pi*r*2 = C
pi*r*2 = 18

Divide 18 by 2
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Then divide 9 by 3.14
pi= 9/3.14 which is 2.866

The diameter is 2 times length of the radius so multiply 2.866 by 2
The diameter is about 5.732
(And you can round of course)

Hope that helped
3 0
3 years ago
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