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dlinn [17]
3 years ago
7

A hamster runs at 17 centimeters per second in a wheel of radius 15 centimeters how fast will the wheel spin in revolutions per

minute​
Mathematics
1 answer:
dolphi86 [110]3 years ago
4 0

Answer:

10.82 revolutions per mintue

Step-by-step explanation:

First we need the circumference of the cirkel. As you may know the formula for that is 2×pi×r, with r as the radius of the cirkel. So 2×pi×15=30pi centimeters or 94.24 centimeters. Now we will calculate the fraction of 17 centimeters on 94.24 centimeters. 17/94.24=0.18. That is how fast the wheel will spin. To get it in minutes we now do: 0.18×60=10.82 revolutions per minute.

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3 years ago
Find the radius of a circle whose circumference is 31.4 centimeters. Approximate Π as 3.14.
sladkih [1.3K]

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The diameter is (2 x radius), so we can write

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I shall now pluggum in:

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8 0
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Read 2 more answers
A geometric sequence has a first term of 3 and a fourth term of 81÷8.<br><br> Find the eighth term
tatuchka [14]

Answer:

6561 / 128

Step-by-step explanation:

The nth term of a geometric sequence is:

a = a₁ (r)ⁿ⁻¹

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81/8 = 3 (r)⁴⁻¹

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The eighth term is therefore:

a = 3 (3/2)⁸⁻¹

a = 6561 / 128

5 0
3 years ago
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