Solve the problem.Suppose that during a certain step in a chemical manufacturing process the amount of hydrogen sulfide 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. (20.0, 2), (22.4, 4), (24.4, 6), (26.4, 8), (28.2, 10)
B. (0, 20.0), (2, 22.4), (4, 24.4), (6, 26.4), (8, 28.2)
C. (2, 20.0), (4, 22.4), (6, 24.4), (8, 26.4), (10, 28.2)
D. (1, 20.0), (2, 22.4), (3, 24.4), (4, 26.4), (5, 28.2)
Answer: C
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Provide an appropriate response.Describe the elements of a 4 × 4 identity matrix.
A. The matrix has zeroes on the main diagonal. All other elements are ones. B. All elements of the matrix are ones. C. The matrix has ones on the main diagonal and zeroes below the main diagonal. D. The matrix has ones on the main diagonal, and all other elements are zero.
Find the distance between the pair of points.(0, 0) and (1, -3)
A. 10
B. 2
C. 
D. -2
Solve the problem.Write an equation in standard form of the parabola that has the same shape as the graph of f(x) = 5x2, but which has a minimum of 5 at x = 2.
A. f(x) = -5(x - 2)2 + 5 B. f(x) = 5(x + 2)2 + 5 C. f(x) = 5(x - 2)2 + 5 D. f(x) = 5(x + 5)2 - 2
Solve the exponential equation. Use a calculator to obtain a decimal approximation, correct to two decimal places, for the solution.7x = 15
A. 1.39 B. 0.99 C. 0.72 D. 5.27