Solve.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. before  sec or after  sec
B. before  sec
C. between  and  sec
D. after  sec


Answer: C

Mathematics

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Find the area enclosed by the given curves.y = csc 2 x, y = cot 2 x, x = , and x = 

A.
B. ?
C.
D.

Mathematics

Solve the problem.At a local zoo, adult visitors must pay $3 and children pay $1. On one day, the zoo collected a total of $730. If the zoo had 390 visitors that day, how many adults and how many children attended?

A. 170 adults and 220 children B. 182 adults and 208 children C. 220 adults and 170 children D. 110 adults and 280 children

Mathematics

Write the first four terms of the recursive sequence.a1 = 4, an = 2an - 1 - 2 for n ? 2

A. 4, 6, 14, 30 B. 4, 8, 16, 32 C. 4, 6, 10, 18 D. 4, 10, 22, 46

Mathematics

Provide an appropriate response.If the y term is missing in both of two linear equations, the lines are   ?

A. Parallel B. One Graph C. Intersecting D. Parallel or One Graph

Mathematics