Solve the problem.A toy rocket is shot vertically upward from the ground. Its distance in feet from the ground in t seconds is given by 
. At what time or times will the ball be 
from the ground? Round your answer to the nearest tenth, if necessary.
A. 2.3 and 6.2 sec
B. 133.2 and 140.8 sec
C. 4.3 sec
D. 8.6 sec
Answer: A
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Solve the equation by finding an expression for the determinant on the left, and then solving using the appropriate method.
= 12
A. {12} B. {-2} C. {18} D. {4}
Solve the problem.In a basketball game, Will scored 36 points, consisting only of three-point shots and two-point shots. He made a total of 16 shots. How many shots of each type did he make?
A. Two-point shots: 13; three-point shots: 3 B. Two-point shots: 4; three-point shots: 12 C. Two-point shots: 12; three-point shots: 4 D. Two-point shots: 11; three-point shots: 5
Use the imaginary unit to write the expression.
A. 10i
B. -10
C. -10i
D. 10
Determine how many of the first 5 statements in the sequence obtainable from the given statement are true.The measure of each exterior angle of a regular polygon with n sides is 
. (n ? 3)
A. 5 B. 4 C. 2 D. 3