WRITE (1.9)^2 and (1/2)^5 in standard form

Find the value of the variable and the length of each secant segment.

What is the y intercept of f(x)=(1/2)^x?

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