Solve the equation by completing the square.-5x2 - 4x - 4 = 0
A. 
, - 
B. 
C. 
D. 
Answer: D
Mathematics
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Solve. If necessary, round percents to the nearest tenth, dollar amounts to the nearest cent, and all other numbers to the nearest whole.A company increased the number of its employees from 120 to 135. Find the percent increase.
A. 88.9% B. 12.5% C. 52.9% D. 11.1%
Mathematics
Solve the problem.BJ can overhaul a boat's diesel inboard engine in 15 hours. His apprentice takes 30 hours to do the same job. How long would it take them working together assuming no gain or loss in efficiency?
A. 10 hr B. 45 hr C. 4 hr D. 6 hr
Mathematics
Convert. When necessary, round the answer to two decimal places.9
pounds = ____ ounces
A. 184 B. 94 C. 148 D. 149
Mathematics
Simplify the expression without using a calculator.
A. 
B. 
C. 16
D. -240
Mathematics