The number of students studying algebra at State College is 578. The Department Chair expects enrollment to increase 11% each year. How many professors will be needed in 4 years to teach algebra if one professor can handle 55 students?
?
A. 15 professors
B. 32 professors
C. 19 professors
D. 14 professors
E. 16 professors
Answer: E
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It takes 13 minutes to preheat your oven. Once the oven is preheated, baking time for a roast is 13 minutes per pound. Using w as the weight of the roast, in pounds, and B for oven time (including preheating time), in minutes, give a formula that shows the oven time for a roast that weighs w pounds. ?
A. 
B. 
C. 
D. None of the above
Use properties of logarithms to expand the logarithmic expression as much as possible. Where possible, evaluate logarithmic expressions without using a calculator.log3
A. log37 + log311 - log313
B. log3(
)
C. log35
D. log377 - log313
Graph the ellipse and locate the foci.
+ 
= 1 
A. foci at (2
, 0) and (-2
, 0)
B. foci at (0, 2
) and (0, -2
)
C. foci at (0, 5
) and (0, -5
)
D. foci at (5
, 0) and (-5
, 0)
Find the vertex and axis of symmetry of the graph of the function.f(x) = -9x2 - 2x - 5
A. 
; x = - 
B. 
; x = 
C. (9, -5); x = 9
D. 
; x = -9