(Solved): plz help!! 5) The radius of a circle is growing at the rate of three inches per section. How fast is ...

5) The radius of a circle is growing at the rate of three inches per section. How fast is the area growing when the radius is 5 inches? 7) Let f(x)= ex. Find the equation for the tangent line at x = 0 8) Find the equation for the tangent line to the curve x² + xy + y² = 7 at the point (2,1). 9) Find the maximum and minimum value of f(x) = x ex on the interval [0,3] 10) The height of a ball 't' seconds after you throw it into the air is h(t) = 64t - 16t² feet. What is the maximum height the ball will reach and when will it reach this maximum height?