Solve the problem.A rock is propelled upward from the top of a building 230 feet tall at an initial velocity of 88 feet per second. The function that describes the height of the rocket in terms of time t is 
Determine the time at which the rock reaches its maximum height.
A. 5.5 sec
B. 2.2 sec
C. 4.4 sec
D. 2.75 sec
Answer: D
Mathematics
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Find f so that F = ?f. If the fuction is not conservative state so.F(x, y) = 
i + 
j
A. 
+ C
B. 
+ C
C. 
+ C
D. 
+ C
Mathematics
Find the product.(a - 9)(a + 9)
A. a2 - 81 B. a2 - 18 C. a2 + 18a - 81 D. a2 - 18a - 81
Mathematics
Solve the problem.A cube 4 inches on an edge is given a protective coating 0.1 inches thick. About how much coating should a production manager order for 1000 cubes?
A. About 4800 in.2 B. About 1600 in.2 C. About 9600 in.3 D. About 6400 in.3
Mathematics
Draw the angle in standard position and state the quadrant in which the terminal side of the angle lies or the axis on which the terminal side of the angle lies.405°
A. Quadrant II
B. Quadrant III
C. Quadrant II
D. Quadrant I
Mathematics