Solve. Provide answers in interval notation. < 6

A.
B.  ? (3, ?)
C. ?
D. (-?, -3) ? 


Answer: D

Mathematics

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Let U = {q, r, s, t, u, v, w, x, y, z} A = {q, s, u, w, y} B = {q, s, y, z} C = {v, w, x, y, z}. List the elements in the set.C' ? A'

A. {r, t} B. {q, s, u, v, w, x, y, z} C. {w, y} D. {q, r, s, t, u, v, x, z}

Mathematics

Solve the problem.A railroad tunnel is shaped like a semiellipse. The height of the tunnel at the center is 15 ft and the vertical clearance must be  at a point  from the center. Find an equation for the ellipse. 

A.  +  = 1
B.  +  = 1
C.  +  = 1
D.  +  = 1

Mathematics

Suppose that a nonlinear system is composed of equations whose graphs are those described, and the number of points of intersection of the two graphs is as given. Make a sketch satisfying these conditions.An ellipse and a hyperbola; four points

What will be an ideal response?

Mathematics

Evaluate the expression for the given replacement values. Write the answer in simplest form.  for y = , x = 

A.
B.
C.
D.

Mathematics