In the diagram below, OP is circumscribed about quadrilateral ABCD. What is the value of x?
A. 52
B. 50
C.90
D. 92

Which expression is equivalent to (3^2)^-2 a.-81 b.-12 c.1/81 d.1/12

Of the ones listed here, the factor that had the greatest impact on the eventual destruction of native americans' ways of life was the development of the a) automobile. b) highway. c) railroad. d) steamboat.

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