Solve the problem.A coin is tossed upward from a balcony 186 ft high (h0) with an initial velocity (v0) of 
. Its height h after t seconds is given by the formula h(t) = -16t2 + v0t + h0. During what interval of time will the height of the coin be at least 90 ft?
A. The coin will be at a height of at least 90 feet for any time up to and including 1 sec.
B. The coin will be at a height of at least 90 feet for any time up to and including 3 sec.
C. The coin will be at a height of at least 90 feet for any time between and including 3 sec and 6 sec.
D. The coin will be at a height of at least 90 feet for any time between and including 2 sec and 3 sec.
Answer: B
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Solve the rational inequality. Express your solution on a number line using interval notation.
? 0
A. (-?, -9] ? [2, 7]
B. (-?, -9] ? (2, 7)
C. [-9, 2) ? (7, ?)
D. [-9, 2] ? [7, ?)
Solve the equation by the square root property. If possible, simplify radicals or rationalize denominators. Express imaginary solutions in the form 
x2 - 4x + 4 = 81
A. {-7, 11} B. {-11, 7} C. {11} D. {-79, 83}
Solve the problem.A salesperson is paid 10% of all sales plus 6% of all sales over $6500. Find the salesperson's gross pay from sales of $12,200.
A. $1952.00 B. $342.00 C. $1220.00 D. $1562.00
Construct a truth table for the statement form.(p ? r) ? (q ? r)
What will be an ideal response?