Use the horizontal line test to determine whether the function is one-to-one.
A. Yes
B. No
Answer: A
Mathematics
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Solve the problem.A person standing close to the edge on top of a 256-foot building throws a baseball vertically upward. The quadratic equation 
models the ball's height above the ground, s, in feet, t seconds after it was thrown. After how many seconds does the ball reach its maximum height? Round to the nearest tenth of a second if necessary.
A. 2 seconds B. 1.5 seconds C. 6.5 seconds D. 320 seconds
Mathematics
Rationalize the denominator. Assume that all variables represent positive real numbers.
A. 
B. 47
C. 
D. 11
Mathematics
Find the value of the expression for the given replacement value.
; x = -1
A. 
B. - 8
C. 8
D. 2
Mathematics
Change the decimals to percents 0.7
A) 7% B) 700% C) 70% D) 0.007% E) 0.9%
Mathematics