3 years ago

Help me ;-;(with image)

Mathematics

1 answer:

raketka [301]3 years ago

5 0

Answer:

Step-by-step explanation:

A : B

1 : 3

Since we know that B is 3 times of A and A is 4...

1 unit = 4

3 units = 4 x 3 = 12

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Answer:

9/32 inch diameter pin will not fit into a reamed hole with a diameter of 0.278 inch

Step-by-step explanation:

Diameter of reamed hole = 0.278 inch

Radius of reamed hole = $\frac{0.278}{2} =0.139$

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Surface area of pin = $\pi r^2 = 3.14 \times ( \frac{9}{64})^2=0.0620$

Since the surface area of pin is more than the surface area of hole .

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