Change the exponential expression to an equivalent expression involving a logarithm.72 = 49
A. log497 = 2
B. log72 = 49
C. log249 = 7
D. log749 = 2
Answer: D
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Identify the number as prime, composite, or neither.1
A. Prime B. Neither C. Composite
Translate the following into an equation where x represents the unknown number. Then solve the equation for x.
is the product of a number and - 
.
A. 
x = - 
, x = - 1
B. 
= - 
x, x = 
C. 
= - 
x, x = - 
D. 
x = - 
, x = - 
Use percents, percent equations, and/or percent proportions to solve the application.35.5% of undergraduate students at a university are men. If there are 3800 undergraduate students, how many female students are there?
A. 1349 females B. 1900 females C. 2451 females D. 2471 females
Solve the problem.The revenue received from the sale of electric heaters is seasonal, with maximum revenue in the winter. Let the revenue received from the sale of heaters be approximated by R(x) = 40 cos 2?x + 600, where x is time in years, measured from January 1. Find R'(x) for March 1st.
A. -40?
B. 0
C. -40?
D. -40?