8.) find the amount a in an account after t years given the following conditions.

This is a separable differential equation so can be written as

Integrating, then taking antilogs, you have

The exponential factor is 1 at t=0, so the multiplying constant is 4000.

according to the triangle sum theorem, all the angles in a triangle must add up to 180 degrees. if we know one angle is already 90, we do 180-90=90. the other 2 angles must add up to 90, exactly.

step-by-step explanation: