Solve the problem.Find the value for x in the following special right triangle. Use exact values. 
3 m
A. 6
m
B. 
m
C. 6 m
D. 3
m
Answer: C
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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
Add or subtract.-
- 
A. - 12
B. - 10
C. 12
D. - 12
The following chart shows some figures from an income statement. Prepare a vertical analysis by expressing each item as a percent of net sales. Round percents to the nearest tenth of a percent. 
A. 32.0%, 9.1%, 14.8%, 11.9% B. 32.0%, 9.0%, 4.7%, 3.8% C. 32.0%, 9.0%, 52.6%, 3.8% D. 32.0%, 28.1%, 14.8%, 11.9%
Perform the indicated operations and simplify the result. Leave the answer in factored form.
? 
A. 
B. 
C. 
D. 