Find the inverse of the one-to-one function.
?
?
A. 
B. 
?
C. 
D. 
E. inverse does not exist
Answer: B
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Which of the following is a definition of a scalene triangle? ?
A. ?Has three sides of different lengths. B. ?Has at least two sides that are the same length. C. ?Has at least two sides that are different lengths. D. ?Has three sides that are all the same length. E. ?All three interior angles are of different measure. F. ?aand e are true.
Evaluate the determinant.
A. -23 B. 13 C. 43 D. -13
Simplify the expression. Write the result without using negative exponents. (Assume all variables represent nonzero real numbers.)
A. z4
B. z10
C. 
D. 
A circular metal tank has a radius of 20 in. If a lid made for tank has the same radius, find the area of the lid in square feet. Use the rules for working with measurements.
A. The area is 34.9 ft 2. B. The area is 8.73 ft 2. C. The area is 1,260 ft 2. D. The area is 4.36 ft 2. E. The area is 17.5 ft 2.