Solve the problem.The volume of a solid is 5x(7x- 9). The volume of a smaller solid is 7(7x- 9). Find an expression, in factored form, for the difference of the volumes of the two solids.
A. (7x - 7)(5x + 9)
B. (7x - 9)(5x + 7)
C. (7x - 9)(5x - 7)
D. 5x(7x2 - 9x - 7)
Answer: C
Mathematics
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Draw the given angle.270°
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B. 
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Solve the right triangle.A = 19° 17', c = 287 ft, C = 90°Round side lengths to two decimal places, if necessary.
A. B = 70° 43', a = 94.21 ft , b = 270.01 ft B. B = 71° 42', a = 94.78 ft, b = 266.9 ft C. B = 70° 43', a = 94.78 ft, b = 270.9 ft D. B = 70° 42', a = 97.98 ft, b = 272.1 ft
Mathematics
Graph the solution of the system.
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B. 
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Mathematics
Solve the problem.A person ordering a certain model of car can choose any of 9 colors, either manual or automatic transmission, and any of 8 audio systems. How many ways are there to order this model of car?
A. 152 B. 144 C. 140 D. 154
Mathematics