Multiply, and then simplify if possible. Assume all variables represent positive real numbers.(
- y)(
+ y)
A. a - y
B. a - y2
C. a - 2y
- y2
D. a + 2y
- y2
Answer: B
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Solve the system.
A. (1, 3, 4) B. (1, 4, 3) C. (4, 3, 1) D. (4, 1, 3)
Use the figure below to solve the right triangle if a = 8.3 and b = 9.8. Round all answers to one decimal place.
 FIGURE.png)
Provide an appropriate response.A number rounded to the nearest thousand is 82,000. What is the largest whole number this could have been before rounding?
A. 82,499 B. 81,999 C. 82,500 D. 82,999
Two rental airplanes fly a total of 53 h in one month. One plane rents for $50/h and the other rents for $60/h. The total income of the two planes was $2,900. Find the number of hours each plane flew for the month.
A. The first plane flew 29.5 h, the second plane flew 23.5 h. B. The first plane flew 25 h, the second plane flew 28 h. C. The first plane flew 31 h, the second plane flew 22 h. D. The first plane flew 28 h, the second plane flew 25 h. E. The first plane flew 29 h, the second plane flew 24 h.