Solve.cos-1 (1 - 2x2) = 2 sin-1 
A. x = ± 
B. x = 
C. x = 2
D. x = -5 + 3
Answer: A
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Refer to the given map. Assume that the length of each east-west block is 
mile and the length of each north-south block is 
mile. 
Find the straight-line distance between the bus stop and the theater.
A. 1.50 mi B. 1.27 mi C. 1.33 mi D. 1.58 mi
Multiply. Assume that no radicands were formed by raising negative numbers to even powers.(
+ 4)(
- 5)
A. -14
B. -10 - 5 ? 
C. -44 + 14 ? 
D. -14 - 5 
+ 4 
Solve the problem.At a certain copy center, the cost y (in dollars) of purchasing x thousand printed cards can be approximated by 
Use implicit differentiation to find and interpret 
when 
and 
A. 
= 60 means that ordering an additional thousand cards will cost approximately $30.00 more.
B. 
= 60 means that ordering an additional 60 cards will cost $1000.00 more.
C. 
= 30 means that ordering an additional thousand cards will cost approximately $30.00 more.
D. 
= 30 means that additional cards will cost approximately $30.00 each.
Solve the problem.Find the grade point average (GPA) of a student with 28 credits with a grade of A, 20 credits with a grade of B, 16 credits with a grade of C, 2 credits with a grade of D, and 0 credits with a grade of F.
A. 3.06 B. 2.92 C. 3.07 D. 3.12