Perform the following operation.
?
?
A. ?
B. ?
C. ?
D. ?
E. ?
Answer: E
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Factor completely, or state that the polynomial is prime.x3 + 2x2 + x + 2
A. (x2 + 2)(x + 1) B. (2x2 + 2)(x + 1) C. (x2 + 1)(x + 2) D. (x2 + 1)(2x + 2)
The Richter scale converts seismographic readings into numbers for measuring the magnitude of an earthquake according to this function M(x) = log 
, where x0 = 10-3.What is the magnitude of an earthquake whose seismographic reading is 7.6 millimeters at a distance of 100 kilometers from its epicenter? Round the answer to the nearest tenth.
A. 880.8 B. 3.9 C. 2.9 D. 2.6
Solve the problem.Wind speed varies in the first twenty meters above the ground. For a particular day, let 
compute the wind speed 
above the ground. What is the wind speed 
above the ground? Round results to the nearest hundredth.
A. -1.77 meters per second B. 7.98 meters per second C. 8.06 meters per second D. 9.23 meters per second
Write the inequality in interval notation.x ? -3
A. (-?, -3] B. (-3, ?) C. [-3 ?) D. (-?, -3)