Solve by completing the square. Give exact solutions. Simplify radicals and reduce.5x2 + 9x = 0
A. 0
B. ± 
C. - 
, 0
D. 
, 0
Answer: C
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Represent the radical as a radical with a smaller root index. Assume any variables represent nonnegative values.
A. 
B. 
C. 
D. 
Rewrite the expression as the sum and/or difference of logarithms, without using exponents. Simplify if possible.log8
A. 
log813 - log87
B. log87 - log8
C. log4
- log47
D. log8
+ log87
Solve the problem.A new health food store runs an advertising campaign. Daily sales (in dollars) after x days of advertising are given by ?S(x) = 
By sketching the graph of this function, answer the following questions. What is the horizontal asymptote of the graph? What does this suggest about future sales? Explain your reasoning. If the advertising campaign costs $3200 per day, at what point should it be discontinued? Why?
What will be an ideal response?
Find the value for the function.Find f(x + h) when f(x) = 2x2 + 4x + 5.
A. 2x2 + 2h2 + 8x + 8h + 5 B. 2x2 + 4xh + 2h2 + 4x + 4h + 5 C. 2x2 + 2xh + 2h2 + 4x + 4h + 5 D. 2x2 + 2h2 + 4x + 4h + 5