Supply the missing numbers. Round decimals to the nearest thousandth and percents to the nearest tenth of a percent.fractiondecimalpercent?225%
A.
2 ? | 22.5 |
B.
| 2? | 22.5 |
C.
| 2? | 2.25 |
D.
2 ? | 2.25 |
Answer: D
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Solve.Important news is said to diffuse through an adult population of fixed size L at a time rate proportional to the number of people who have not heard the news. Four days after a scandal in the mayor's office was reported, a poll showed that half of the people had heard about it. How long will it take for 99% of the people to hear about it?
A. 29 days B. 28 days C. 27 days D. 30 days
Use the two steps for solving a linear programming problem to solve the problem.A doctor has told a sick patient to take vitamin pills. The patient needs at least 28 units of vitamin A, at least 7 units of vitamin B, and at least 20 units of vitamin C. The red vitamin pills cost 
each and contain 6 units of A, 1 unit of B, and 2 units of C. The blue vitamin pills cost 
each and contain 4 units of A, 1 unit of B, and 5 units of C. How many pills should the patient take each day to minimize costs?
A. 5 red and 2 blue B. 7 red and 0 blue C. 2 red and 5 blue D. 6 red and 1 blue
Factor the polynomial completely.14x2 - 49x - 28
A. 7(2x - 1)(x + 4) B. (2x - 1)(7x + 28) C. (14x - 7)(x + 4) D. 7(2x + 1)(x - 4)
Solve.The U.S. Maritime Administration determined that the cost of building an oil tanker was approximated by the graph shown below. The cost per ton decreased as the weight (in thousands of tons) of the tanker increased. What is the approximate cost per ton to build a tanker of 75,000 tons?
A. $350 per ton B. $450 per ton C. $330 per ton D. $375 per ton