Solve the problem.When water runs out of a hole in a cylindrical container, the height of the water in the container can often be modeled by a quadratic function. Assume that the height of the water in a particular metal can with a small hole can be modeled by 
where x is the time (sec) and h is the height (cm). Use the quadratic formula to estimate the time when the height is 5 cm. Round your answer to the nearest second.
A. 24 sec
B. 31 sec
C. 30 sec
D. 28 sec
Answer: A
Mathematics
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Provide an appropriate response.What does the graph of the equation 
look like?
A. The y-axis B. The xz-plane C. The z-axis D. The xy-plane
Mathematics
Solve the exponential equation. Round to three decimal places when necessary.ex + e-x = 6
A. 1.357, -2.168 B. 1.818, -1.818 C. 1.763, -1.763 D. 1.755, -1.532
Mathematics
Solve and check your solution(s). If the equation has no real solution, so state.x - 
= 4
A. -1 B. 1, 2 C. 2, 9 D. 9
Mathematics
Select the correct rational function for the following graph.
?
?
A. 
B. 
C. 
D. ?
E. ?
Mathematics