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. -2 sec
B. 5 sec
C. 160 sec
D. 2 sec
Answer: B
Mathematics
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Use the Gauss-Jordan method to find A-1, if it exists.A = 
A. 
B. 
C. 
D. Does not exist
Mathematics
Find the intercepts for the equation.-4x - 2y = 8
A. (0, 0); (0, -4) B. (-2, 0); (0, 8) C. (-3, 0); (0, -4) D. (-2, 0); (0, -4)
Mathematics
Write the rate as a unit rate.There are 1792 people in 40 buses.
A. 448 people/bus B. 0.022 person/bus C. 44.8 people/bus D. 1752 people/bus
Mathematics
Solve the problem. Round rates to the nearest tenth of a percent and dollar amounts to the nearest cent.A local dealer sells baseballs for $25 each. If $6.90 is the cost, what is the percent of markup on the cost?
A. 27.6% B. 2.6% C. 72.4% D. 262.3%
Mathematics