Solve.x + 17.8 = 26.5
A. 8.2
B. 9.7
C. 8.7
D. 12.7
Answer: C
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A ball is tossed upward from the top of a building and allowed to fall to the ground. Its distance D, in feet, above the ground t seconds after the toss is given by
.
A: How tall is the building? Round your answer to whole number.B: What is the maximum height reached by the ball, and when does this occur? Round your answers to two decimal places.C: How long does it take for the ball to hit the ground? Round your answer to two decimal places.
What will be an ideal response?
Indicate whether the statement is true always, sometimes, or never.The sum of two imaginary numbers is an imaginary number.
A. Never B. Sometimes C. Always
Solve and graph. Write the answer in set-builder notation.-7 ? 
A. {x |x ? -35}
B. {x |x > -35}
C. {x |x ? -35}
D. {x |x < -35}
Solve the problem.If an object is propelled upward from a height of 144 feet at an initial velocity of 128 feet per second, then its height h after t seconds is given by the equation 
After how many seconds does the object hit the ground?
A. 11 sec B. 4.5 sec C. 8.0 sec D. 9 sec