Solve the equation.y + 9.2 = -4.5
A. -4.7
B. 13.7
C. 4.7
D. -13.7
Answer: D
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Perform the conversion. Round to the nearest hundredth when necessary.62.8 m to ft
A. 68.45 ft B. 205.98 ft C. 19.15 ft D. 57.40 ft
Solve the problem.In a Psychology class, the students were tested at the end of the course on a final exam. Then they were retested with an equivalent test at subsequent time intervals. Their average scores after t months are given in the table.
Using a graphing utility, fit a logarithmic function y = a + b ln x to the data. Using the function you found, estimate how long will it take for the test scores to fall below 84%. Express your answer to the nearest month.
A. 12 months B. 20 months C. 8 months D. 10 months
Find the domain of the logarithmic function. Write your answer in interval notation.f(x) = log4(x + 4)2
A. (-?, 0) ? (0, ?) B. (-4, ?) C. (4, ?) D. (-?, -4) ? (-4, ?)
Solve. A lamp shade has the geometric form shown below. The total surface area of a lamp shade with slant height s and top and bottom base radii of r2 and r1, respectively, is given by the expression 
Factor this expression. 
A. ?(r1 + r2)(r1 + r2 + sr1r2)
B. ?r1(r1 + 
+ sr1 + sr2)
C. ?(r12 + r22 + sr1 + sr2)
D. ?(r1 + r2)(r1 + r2 + s)