Perform the operation indicated.Add: 
A. -3x4 + 8
B. 11x8 + 6
C. 11x4 + 6
D. -3x2 + 6
Answer: C
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Simplify the given expression.0188
A. 0 B. 1 C. 188 D. undefined
Find the volume of the solid generated by revolving the region about the given axis. Use the shell or washer method.The region in the first quadrant bounded by x = 4y - y2 and the y-axis about the y-axis
A. 
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B. 
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C. 
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D. 
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Write a numerical expression for the phrase and simplify it.3 added to the sum of -6 and 10
A. 3 + 6 + 10; 19 B. 3 + 10 - 6; 13 C. -3 - 6 - 10; -19 D. 3 + [(-6) + 10]; 7
Solve the problem.The formula P = 14.7e-0.21x gives the average atmospheric pressure, P, in pounds per square inch, at an altitude x, in miles above sea level. Find the average atmospheric pressure for an altitude of 2.3 miles. Round your answer to the nearest tenth.
A. 11.0 lb/in.2 B. 8.4 lb/in.2 C. 7.8 lb/in.2 D. 9.1 lb/in.2