Find the function value to four decimal places.Find sin ? when cos ? = -0.2857 and sin ? < 0.
A. -3.5000
B. -6.7082
C. -0.9583
D. -3.3541
Answer: C
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Plot the point whose coordinates are given. If appropriate show the "box."(1, 2, 4)
What will be an ideal response?
Solve the equation for x. Write your answer as an improper fraction if necessary. 13 = 4 - 1.5x
A. x = -1 B. x = -5 C. x = -6 D. x = -7
The graph of a logarithmic function is shown. Select the function which matches the graph.
A. y = log x B. y = -log x C. y = -log(-x) D. y = log(-x)
Solve the problem.The function A = A0e-0.01386x models the amount in pounds of a particular radioactive material stored in a concrete vault, where x is the number of years since the material was put into the vault. If 400 pounds of the material are initially put into the vault, how many pounds will be left after 140 years?
A. 312 lb B. 57 lb C. 560 lb D. 71 lb