Simplify. Assume all variables represent positive real numbers.
A. not a real number
B. 2
C. 9
D. 
Answer: C
Mathematics
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Solve the problem.A ball is thrown downward from a window in a tall building. Its position at time t in seconds is 
where s is in feet. How long will it take the ball to fall 174 feet?
A. 5.8 sec B. 2.4 sec C. 3.3 sec D. 2.2 sec
Mathematics
Use the formula for 
to evaluate the expression.
A. 1 B. 80 C. 40,320 D. 0
Mathematics
Solve the system by substitution. If the system is inconsistent or dependent, say so.
A. (4, 4) B. infinite number of solutions of the equation y - 6x = 4; dependent system C. (2, -4) D. empty set solution; inconsistent system
Mathematics
Use a calculator to find the value of the trigonometric function to four decimal places.cos 0.3
A. 0.0052 B. 0.9553 C. 1.0000 D. 0.2955
Mathematics