Solve. If we neglect air resistance, the polynomial -16t2 + h0 describes the height of a falling object after falling from an initial height h0 for t seconds. A cliff is 1798 feet high. If a coin is dropped from the top of the cliff, what will the height of the coin be after 3 seconds?
A. 1644 ft
B. 1688 ft
C. 1668 ft
D. 1654 ft
Answer: D
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A group of 45 parents and children plan to go to the zoo. For safety, there must be one parent for each 4 children. ? A: Using ?P for parents and ?C for children, write a system of two equations that describes the group traveling to the zoo. Round your answers to two decimal places, if necessary. ? B: How many parents and how many children make the trip?
What will be an ideal response?
Use the figure below to find its volume in cubic units.
A. 7 units3 B. 10 units3 C. 12 units3 D. 6 units3
Solve. Where appropriate, include approximations to the nearest thousandth. If no solution exists, state this.log3 (2x - 4) = 1
A. 
B. 
C. 5
D. No solution
Solve the problem.The president of a certain university makes three times as much money as one of the department heads. If the total of their salaries is $170,000, find each worker's salary.
A. president's salary = $12,750; department head's salary = $4250 B. president's salary = $127,500; department head's salary = $42,500 C. president's salary = $85,000; department head's salary = $42,500 D. president's salary = $42,500; department head's salary = $127,500