Find the equilibrium solution of the equation. Use a sketch of the direction field for 
to determine whether the equilibrium is stable.y'(t) = 2y - 20
A. y = 10; unstable
B. y = 10; stable
C. y = 
; unstable
D. y = 22; stable
Answer: A
Mathematics
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A. y = 6, 3 B. y = 6, -3 C. y = -6, 3 D. y = -6, x = 1
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Express the number in scientific notation.0.000315
A. 3.15 × 10-3 B. 3.15 × 104 C. 3.15 × 10-4 D. 3.15 × 10-5
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Compute r, the linear coefficient of correlation, for the given data.The paired data below consist of the costs of advertising (in thousands of dollars) and the number of products sold (in thousands):
A. 0.708 B. 0.235 C. 0.246 D. -0.071
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The histogram shows the scores of each participant in a game from a total of 100 participants. 
What is the ratio of participants who score 100 to the total number of participants?
A. 
B. 
C. 
D. 
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