The area of a circle in terms of the circle's radius 
is
Differentiating both sides with respect to
, you get
Differentiating both sides with respect to
A savings account for a car is set up with an initial balance of $2500, and $100 is added every month
1 answer:
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In this problem, you must use SohCahToa which basically means:
Sin - opposite over hypotenuse
Cosine - adjacent over hypotenuse
Tangent - Opposite over hypotenuse
So in this picture we have 4 -which is on the opposite side of x - and a 5 -which is the hypotenuse of the triangle. This means we must use sin.
Using a calculator you put in:
Your answer is 53.13 degrees
