Solve the problem.An object is thrown upward from the top of a 
building with an initial velocity of 48 feet per second. The height h of the object after t seconds is given by the quadratic equation 
When will the object hit the ground?
A. 5 sec
B. 2 sec
C. 160 sec
D. -2 sec
Answer: A
Mathematics
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Find the interval of convergence of the series.
A. 6 < x < 10 B. 3 < x < 13 C. 3 ? x ? 13 D. 7 ? x < 9
Mathematics
Solve.The side of a square equals the length of a rectangle. The width of the rectangle is 4 meters longer than its length. The sum of the areas of the square and the rectangle is 96 square centimeters. Find the side of the square.
A. 36 cm B. 2 cm C. 8 cm D. 6 cm
Mathematics
Reduce the fractions to lowest terms.
A. 
B. 
C. 
D. 
Mathematics
First round each number to one non-zero digit. Then perform the calculation using the rounded numbers to obtain an estimate.6.327 × 8.09
A. estimate: 51 B. estimate: 480 C. estimate: 48 D. estimate: 4.8
Mathematics