Simplify the expression. Assume that all variables are non-negative.
A. 
B. x5y2z5
C. x10y2z10
D. 
Answer: D
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If r is a positive number and the point (x, y) is in the indicated quadrant, decide whether the given ratio is positive or negative.III, 
A. Negative B. Positive
Solve the problem.The position of an object moving in a straight line is given by s = 2t2 - 3t, where s is in meters and t is the time in seconds the object has been in motion. How long (to the nearest tenth) will it take the object to move 7 meters?
A. 8.0 sec B. 2.6 sec C. 2.8 sec D. 7.7 sec
Solve. Round any approximate solution to the fourth decimal place.2x + 7 = 5
A. 1.2758 B. -0.4472 C. 7.4307 D. -4.6781
Solve the problem.Astou Ndiaye-Diatta scored 36 points in a recent basketball game without making any 3-point shots. She scored 24 times, making several free throws worth 1 point each and several field goals worth two points each. How many free throws did she make? How many 2-point field goals did she make?
A. 10 free throws, 14 field goals B. 12 free throws, 12 field goals C. 13 free throws, 11 field goals D. 14 free throws, 11 field goals