2 years ago

I'm stuck on b, I've tried many methods but nothing seems to work (please help this is due in 3 hours)

Mathematics

2 answers:

Nonamiya [84]2 years ago

3 0

The scale factor is 1.2x

olga nikolaevna [1]2 years ago

3 0

Answer:

6/5

Step-by-step explanation:

An easy way to do this is see how the scale factor from a to b is 5/6? all you have to do is reverse those numbers! Hope this helps

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Answer:

The answer is $\frac{3}{10\pi } cm/min$

Step-by-step explanation:

Assuming the snowball is a perfect sphere, then if A denotes the surface area and D the diameter then:

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Differentiating wrt r we have:

$\frac{dA}{dD} =2\pi D$

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By the chain rule we have:

$\frac{dA}{dD}=\frac{dA}{dt}.\frac{dt}{dD}=\frac{\frac{dA}{dt} }{\frac{dD}{dt} }$

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When D=10 then

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3 years ago

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I don't see the following ratios.

Step-by-step explanation:

I think you should add the following.

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2 years ago

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I'm stuck on b, I've tried many methods but nothing seems to work (please help this is due in 3 hours)​

I'm stuck on b, I've tried many methods but nothing seems to work (please help this is due in 3 hours)