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damaskus [11]
3 years ago
6

Radius of a circle with the circumference of 28 π

Mathematics
1 answer:
Maksim231197 [3]3 years ago
7 0

Answer:

R = 14

Step-by-step explanation:

<u>The formula for finding the circumference of a circle is πd or 2πr:</u>

Since we are trying to find the radius, we'll use 2πr.

28 ÷ 2 = 14.

So, that means the radius is 14.

<u>Check:</u>

14 · 2 = 28.

28 · π = 28π

Thus, an answer of $\boxed{R = 14}$ is correct.

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The frequency of the musical note C4 is about 261.63 Hz. What is the frequency of the note a perfect fifth below C4?
kolbaska11 [484]

Answer:

The frequency of the note a perfect fifth below C4 is;

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Step-by-step explanation:

Here we note that to get the "perfect fifth" of a musical note  we have to play a not that is either 1.5 above or 1.5 below the note to which we reference. Therefore to get the frequency of the note a perfect fifth below C4 which is about 261.63 Hz, we have

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6 0
3 years ago
Triangle XYZ is reflected across the x axis to Obtain triangle C1 Y1 Z1 . <br><br> Please Help
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Step-by-step explanation:

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3 years ago
A recipe uses 2 cups of flour to make 18 cupcakes. How much flour is needed to make 27 cupcakes?
drek231 [11]

Answer:

3 cups

Step-by-step explanation:

we can solve this by setting up ratios

\frac{2 cups}{18 cupcakes} = \frac{x}{27 cupcakes}

cross multiply:

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