Write a system of inequalities whose solution set is the region shown.
A. x ? -2
y ? -x2 + 4
B. y ? 2
y ? x2 + 4
C. y ? -2
y ? -x2 + 4
D. y ? -2
y ? -x2 + 4
Answer: D
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Perform indicated operation and round as indicated.9.48 ÷ 0.083 round to the nearest tenth
A. 114.22 B. 11.42 C. 11.47 D. 114.72
Give the equations of any horizontal asymptotes.f(x) = 
A. none B. y = -8 C. y = 8 D. y = 1
If f is one-to-one, find an equation for its inverse.f(x) = 8x3 - 5
A. f-1(x) = 
B. Not a one-to-one function
C. f-1(x) = 
+ 5
D. f-1(x) = 
Solve.Yvette has up to $4000 to invest and has chosen to put her money into telecommunications and pharmaceuticals. The telecommunications investment is to be no more than 2 times the pharmaceuticals investment. Write a system of inequalities to describe the situation. Let x represent the amount (in dollars) invested in telecommunications and y represent the amount (in dollars) invested in pharmaceuticals.
A. x + y ? 4000, x ? 2y, x ? 0, y ? 0 B. x + y = 4000, y ? 2x, x ? 0, y ? 0 C. x + y ? 4000, 2x ? y, x ? 0, y ? 0 D. x + y = 4000, x ? 2y, x ? 0, y ? 0