Match the given function to its graph.1) y = sin(3x)2) y = 3 cos x3) y = 3 sin x4) y = cos(3x)AB
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CD
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A. 1A, 2B, 3C, 4D
B. 1A, 2C, 3D, 4B
C. 1B, 2D, 3C, 4A
D. 1A, 2D, 3C, 4B
Answer: C
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Write a description of the shaded region using the symbols A, B, C, ?, ?, -, and ' as needed.
A. A ? B ? C' B. (A ? B) ? C' C. (A ? B) ? C' D. (A ? B ? C)'
Convert the units.52.33 m = mm
A. 0.0523 mm B. 5233 mm C. 0.523 mm D. 52,330 mm
Solve the problem.pH = -log10[H+] Find the pH if the [H+] = 1.3 x 10-5.
A. 5.89 B. 4.11 C. 5.11 D. 4.89
Use a graphing calculator to plot the data and find the quadratic function of best fit.A small manufacturing firm collected the following data on advertising expenditures (in thousands of dollars) and total revenue (in thousands of dollars). 
Find the quadratic function of best fit.
A. R(x) = -0.024x2 + 7.13x + 6209 B. R(x) = -0.015x2 + 4.53x + 6123 C. R(x) = -0.091x2 + 5.95x + 6337 D. R(x) = -0.31x2 + 2.63x + 6128