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natulia [17]
3 years ago
7

Help me plz with my hw

Mathematics
1 answer:
inna [77]3 years ago
6 0
Circumference is found with the formula

c = pi × d

d is diameter and we will use 3.14 for pi.

The diameter is the measure across the center of the circle. In the first problem, you are given the radius, so we have to multiply by 2 to get the diameter. Then we can use the formula.

12.4 in × 2 = 24.8 in (that's the diameter)

c = pi × D
c = 3.14 × 24.8
c = 77.872 inches

circumference is 77.872 inches.

Try the other problems on your own. They are just like this one. Just make sure they are giving you the diameter and not the radius. Post if you have problems.
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baherus [9]

Step-by-step explanation:

(Explanation is above)

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3 0
3 years ago
I=$26.25I=$26.25, P=$500P=$500, t=18 t=18 months
Travka [436]
Next time, please include the directions for the problem you post.  Here it appears that you have given the values of I, P and t two times each.  
Unfortunately, I have to guess what you're looking for.
 
Assuming that I=$26.25 is the interest earned on Principal P=$500, and that t is the length of time over which the Principal earns interest,

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4 years ago
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Neporo4naja [7]

Answer:

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6 0
3 years ago
Read 2 more answers
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