Multiply and simplify. Assume that all variables represent non-negative numbers.(
+ 3)(
- 3)
A. 7 - 2
B. 4
C. -2
D. 16
Answer: C
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Name the quadrant in which the angle ? lies.sin ? > 0, cos ? > 0
A. I B. II C. III D. IV
Provide an appropriate response.The function f(x) = 200 
describes the future value of a certain annuity. How many payments per year are there?
What will be an ideal response?
Use the formulas relating distance, rate, and time.A family began a trip of 375 miles at 8 A.M. They arrived at their final destination at 3:30 P.M. If they took three 20-minute breaks and took a half hour for lunch, what was their average rate? Round to the nearest tenth if necessary.
A. 57.7 mph B. 62.5 mph C. 53.6 mph D. 68.2 mph
The letters x and y represent rectangular coordinates. Write the equation using polar coordinates (r, ?).2xy = 3
A. r2 sin 2? = 3 B. r2 cos ? sin ? = 6 C. r2 sin 2? = 6 D. 2r cos ? sin ? = 3