Please Help!! :) Find (f • g) where f(x)=1/x+1 and g(x)=-1/x

a. x/x-1

b. -x+1/x

c. 1/x+1

d. x+1/x

Determine if the function f(x)=-sqrt 3x-27 is one-to-one

Find the inverse of f(x)= -sqrt 3x-27

What’s -11-33k and factor each expression completely

Find the solution(s) to x^2-14+49=0

For every corresponding pair of cross sections, the area of the cross section of a sphere with radius r is equal to the area of the cross section of a cylinder with radius and height 2r minus the volume of two cones, each with a radius and height of r. a cross section of the sphere is and a cross section of the cylinder minus the cones, taken parallel to the base of cylinder, is the volume of the cylinder with radius r and height 2r is and the volume of each cone with radius r and height r is 1/3 pie r^3. so the volume of the cylinder minus the two cones is therefore, the volume of the cylinder is 4/3pie r^3 by cavalieri's principle. (fill in options are: r/2- r- 2r- an annulus- a circle -1/3pier^3- 2/3pier^3- 4/3pier^3- 5/3pier^3- 2pier^3- 4pier^3)