Factor the expression completely.5x2 + 30x + 45
A. 5(x + 3)2
B. 5(5x + 3)(x + 15)
C. 5(5x + 3)2
D. 5(x - 3)2
Answer: A
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Solve the problem.The cost C of producing t units is given by C(t) = 3t2 + 7t, and the revenue R generated from selling t units is given by 
For what values of t will there be a profit?
A. t > 8 B. t > 0 C. t > 7 D. t > 6
Find all six trigonometric functions of ? if the given point is on the terminal side of ?.
?
?
A. sin ? = 0; cos ? = 01; csc ? = undefinedsec ? = 01; tan ? = 0; cot ? = undefined B. sin ? = 01; cos ? = 0; csc ? = 01sec ? = undefined; tan ? = 0; cot ? = undefined C. sin ? = 01; cos ? = 0; csc ? = 01sec ? = undefined; tan ? = undefined; cot ? = 0 D. sin ? = 0; cos ? = 01; csc ? = undefinedsec ? = 01; tan ? = undefined; cot ? = 0 E. sin ? = 01; cos ? = 0; csc ? = undefinedsec ? = 01; tan ? = 0; cot ? = undefined
Add or subtract. Write the answer in lowest terms.
+ 
- 
A. 
B. 
C. 
D. 
Write an equation for a function whose graph fits the given description.The graph of f(x) = x2 is vertically stretched by a factor of 4, and the resulting graph is reflected across the x-axis.
A. f(x) = (x - 4)2 B. f(x) = -4x2 C. f(x) = 4x2 D. f(x) = 4(x - 4)x2