Use the change of base formula to identify the expression that is equivalent to 
.
A. 
B. 
C. 
D. 
Answer: A
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Solve the problem.Jim has gotten scores of 88 and 87 on his first two tests. What score must he get on his third test to keep an average of 90 or greater?
A. At least 88.3 B. At least 94 C. At least 87.5 D. At least 95
Write the quotient in the standard form.
A. - 
- 
i
B. 
+ 
i
C. 
+ 
i
D. 
+ 
i
Write the inequality using interval notation, and illustrate the inequality using the real number line.t ? -4
A. (-4, ?)
B. [-4, ?]
C. [-4, ?)
D. (-4, ?]
Solve the equation in part (a) graphically, expressing the solution to the nearest hundredth. Then, use the graph to solve the associated inequalities in parts (b) and (c), expressing endpoints to the nearest hundredth.(a) 
= 0; (b) 
> 0; (c) 
< 0
A. (a) {0} (b) (-1.57, 0) ? (0, ?) (c) (-?, -1.57) B. (a) {0} (b) (-1.57, 0) ? (0, ?) (c) ? C. (a) {0, -1.57} (b) (-1.57, 0) ? (0, ?) (c) (-?, -1.57) D. (a) {0} (b) (-1.57, ?) (c) (-?, -1.57)