Use the position equation 
, where s represents the height of an object (in feet), 
represents the initial velocity of the object (in feet per second), ![]()
src="https://sciemce.com/media/3/ppg__cognero__Section_P.4_Factoring_Polynomials__media__71b27330-830f-4616-b6fe-d67bd9f60cff.PNG" style="vertical-align:middle;" /> represents the initial height of the object (in feet), and t represents the time (in seconds).
A projectile is fired straight upward from ground level 
with an initial velocity of 160 feet per second. At what instant will it be back at ground level?
?
A. 
Sec
B. 
Sec
C. 
Sec
D. 
Sec
E. 
Sec
Answer: B
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Evaluate the expression. Make sure you simplify.4(52) + 6(3 + 6) - (-9)
A. 433 B. 145 C. 163 D. 133
If the sequence is geometric, find the common ratio r. If the sequence is not geometric, say so.1, -3, 9, -27, 81
A. -4 B. 3 C. -3 D. Not geometric
Solve the problem.A rectangular board is 13 by 20 units. The foci of an ellipse are located to produce the largest area. A string is connected to the foci and pulled taut by a pencil in order to draw the ellipse. Find the length of the string.
A. 13 units B. 40 units C. 20 units D. 26 units
Multiply.
× 
A. 
B. 
C. 
D. 