Simplify the rational expression.
A. 
B. y2 - 16
C. y2 + 4y + 16
D. 
Answer: C
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Provide an appropriate response.Write as a complex number in simplified form: -7 + 
A. -7 + i
B. -7 - 5i
C. -7 + 5i
D. -7 - i
Solve the problem. Use 3.14 for ?.The striking circle in field hockey is a semicircle with a radius of 15.6 yd. Find the area of the semicircle.
A. 382.0752 yd2 B. 764.1504 yd2 C. 3056.6016 yd2 D. 97.968 yd2
Calculate using the rules for order of operations.
A. 
B. 
C. 
D. 
Solve.A rocket is launched from the top of a cliff that is 112 feet high with an initial velocity of 112 feet per second. The height, h(t), of the rocket after t seconds is given by the equation 
How long after the rocket is launched will it strike the ground? Round to the nearest tenth of a second, if necessary.
A. 7.9 sec B. 8.7 sec C. 9.3 sec D. 8.3 sec