Solve the problem.An arrow is fired straight up from the ground with an initial velocity of 
per second. Its height, 
in feet at any time t is given by the function 
Find the interval of time for which the height of the arrow is greater than 
A. after 3 sec
B. between 3 and 10 sec
C. before 3 sec or after 10 sec
D. before 10 sec
Answer: B
Mathematics
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Determine whether the relation is a function.{(-5, -2), (-2, -1), (2, -5), (2, -2)}
A. Not a function B. Function
Mathematics
Solve the problem.The two solutions of the equation x2 = x + 1 are
A. 1 and ?. B. ? and -1/?. C. ? and -?. D. ? and ?2. E. none of these
Mathematics
Simplify.|0|
A. 1 B. -1 C. 0 D. does not exist
Mathematics
Work the following problem on your calculator. Do not write down or round off any intermediate answers.
?
?
A. 1 B. 0.3 C. 0.6 D. 3 E. 0.4
Mathematics