Compute the product.
A. 
B. 
C. 
D. 
Answer: C
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State the domain of the rational function.f(x) = 
A. (-?, ?) B. (-?, 6) ? (6, ?) C. (-?, -4) ? (-4, 6) ? (6, ?) D. (-?, -6) ? (-6, 4) ? (4, ?)
Tell whether the angle is acute, right, obtuse, or straight.
A. Obtuse B. Right C. Acute D. Straight
Find the domain and range of the inverse of the given function.f(x) = 3.9 - 2.67x
A. Domain: all real numbers; range: (-?, 3.9] B. Domain: all real numbers; range: [3.9, ?) C. Domain: [3.9, ?); range: all real numbers D. Domain and range: all real numbers
Suppose that we fit a band tightly around the earth at the equator. We wish to raise the band so that it is uniformly supported 7 ft above the earth at the equator. How much extra length would have to be added to the band (not the supports) to do this.
?
?
A. about 37 ft B. about 44 ft C. about 49 ft D. about 35 ft E. about 88 ft