Factor completely.12x4 + 30x3
A. 6x3(2x + 5)
B. x3(12x + 30)
C. 6x3(2x - 5)
D. 6(2x4 + 5)
Answer: A
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Solve the problem.Find the center of mass of the first-octant portion of homogeneous solid sphere of radius 2 centered at the origin.
A. (
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B. (
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C. (
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D. (
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The following table shows the U.S. population, in millions, in the given year.
19601970198019902000
179.32203.3226.54248.71281.42?
Calculate the average rate of change from 1980 to 1990.
A. 2.22 million people per year B. 22.17 million people per year C. 1731.40 million people per year D. None of the above
Evaluate the expression.-73
A. 21 B. -21 C. -343 D. 343
Gravel is being dumped from a conveyor belt at a rate of 34 ft/min and its coarseness is such that it forms a pile in the shape of a cone whose base diameter and height are always equal. How fast is the height of the pile increasing when the pile is 13 ft high? Round the result to the nearest hundredth.
a. 0.6 ft/min
b. 2.26 ft/min
c. 0.14 ft/min
d. 0.27 ft/min
e. 1.24 ft/min