Answer:
Correct answer is B. -3 • 5 = - 15
Answer:
Differential equation will be 
Step-by-step explanation:
Let V is the volume of the raindrop and surface area of the drop is S.
Since volume of the raindrop reduces at the rate directly proportional to the surface area.

Or
where k is the proportionality constant.
We know volume of the spherical drop V = 

Since S = 
Therefore, 





Since coefficient of
is a constant.
Then 

Therefore, differential equation for the volume of the raindrop as function of time will be 
Answer:
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The length of AC is congruent to WY
d = 10
Answer:
z=70
Step-by-step explanation:
Cross multiply to make it 5z=350, solve for z=70