Solve the inequality. Write the solution set using interval notation and graph it.
< - 
A. 
 |
B.
-  |
C.
 |
D.
-  |
Answer: A
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Solve the problem.A window is in the form of a rectangle surmounted by a semicircle. The rectangle is of clear glass, whereas the semicircle is of tinted glass that transmits only one-fifth as much light per unit area as clear glass does. The total perimeter is fixed. Find the proportions of the window that will admit the most light. Neglect the thickness of the frame.
A. 
= 
B. 
= 
C. 
= 
D. 
= 
Simplify.
A. 
B. 14x(x + 7)
C. 
D. 
State whether the function is linear or quadratic.f(x) = 0.6x2 - 2x - 48
A. Linear B. Quadratic
Solve the problem.The population of a particular city is increasing at a rate proportional to its size. It follows the function 
where k is a constant and t is the time in years. If the current population is 12,000, in how many years is the population expected to be 30,000? (Round to the nearest year.)
A. 88 yr B. 7 yr C. 8 yr D. 15 yr