State the domain and range of the function.f(x) = e-x + 2
A. Domain = (-?, ?); range = (-?, ?)
B. Domain = (-?, ?); range = 
C. Domain = = (-?, ?); range: 
D. Domain = (-?, ?); range = (2, ?)
Answer: D
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Use the given transformation to evaluate the integral.
Rwhere R is the interior of the ellipsoid 
A. 144? B. 160? C. 96? D. 192?
Divide. Write the answer in lowest terms and as a whole or mixed number where possible.
÷ 
A. 
B. 1
C. 
D. 1
Solve the problem.Suppose that during a certain step in a chemical manufacturing process the amount of hydrogen chloride dissolved in a solution, measured in parts per million (ppm), is related to the elapsed time measured from the beginning of the step. Use the following table as a representation of this relationship. Write the data from the table as ordered pairs (x, y), where x represents the time and y represents the amount dissolved.
A. (18.0, 3), (20.4, 6), (22.4, 9), (24.4, 12), (26.2, 15) B. (0, 18.0), (3, 20.4), (6, 22.4), (9, 24.4), (12, 26.2) C. (1, 18.0), (2, 20.4), (3, 22.4), (4, 24.4), (5, 26.2) D. (3, 18.0), (6, 20.4), (9, 22.4), (12, 24.4), (15, 26.2)
Write interval notation for the following. Then graph the interval on a number line.The set of all numbers x such that -4 < x < 4
A. (-4, 4)
B. (-?, -4)
C. [-4, 4]
D. (4, ?)