What is the measure of ZA?

3. find the radius of circle p.4. find y.

Find the sum of 4x^{2} -4+6 and -7^{2} +3x+1

Find the volume of the described solid.the solid lies between planes perpendicular to the x-axis at x = 0 and x=7. the cross sectionsperpendicular to the x-axis between these planes are squares whose bases run from the parabolay=-31x to the parabola y = 30/x.a) 441b) 147c) 864d) 882