3 years ago

Someone please help me!

Mathematics

1 answer:

hoa [83]3 years ago

8 0

Answer:

Step-by-step explanation:

Look at the picture

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Two gears are connected and are rotating simultaneously. The smaller gear has a radius of 2 inches, and the larger gear has a ra

shutvik [7]

R - radius of the larger circle
r - radius of the smaller circle

Circumference of the larger circle = $2R\pi=2\times 8\pi=16\pi$
Circumference of the smaller circle = $2r\pi=2\times 2\pi=4\pi$

Part 2: During one complete rotation of the larger gear both gears pass the same distance $16\pi$ .
Therefore, the smaller gear makes $\frac{16\pi}{4\pi}=4$ complete rotations.

Part 1: During one complete rotation of the smaller gear both gears pass the same distance $4\pi$ .
Therefore, the larger gear makes $\frac{4\pi}{16\pi}=\frac{1}{4}$ of a complete rotation.
Since one complete rotation corresponds to 360 degrees, 1/4 of a complete rotation corresponds to 360/4=90 degrees.

8 0

4 years ago

Can someone help me with this?

kherson [118]

B is what i think is right

6 0

3 years ago

Read 2 more answers

Mrs.wilkinson can hit a 20 ounce box of cereal for $3.60 or a 28 ounce box of cereal for $4.20 which is better and why

Ratling [72]

Answer:

28 ounce box of cereal