the radius of a circle is increasing. At a certain instant, the rate of increase in the area of circle is numerically equal to twice the rate of increase in its circumference. What is the radius of the circle at that instant?

Volume of a cylinder with a radius of 13 in and height of 30 in

Do one of the following, as appropriate: (a) find the critical value z subscript alpha divided by 2 , (b) find the critical value t subscript alpha divided by 2 . 99%; nequals 17; sigma is unknown; population appears to be normally distributed.

Which graph correctly represents the equation  y=−4x−3? guys me iam not trying to fail summer school and will offer 40 points for who ever me with the next 3 problems and will give brainlest