Solve the problem.Suppose y = mx + b is a mathematical model for actual time as a function of estimated time, where y represents actual time and x represents estimated time and m and b are constants. If m = 1.2 and b = -4.8, find y when x is 60 min.
A. 67.2 min
B. 54.24 min
C. 76.8 min
D. 65.76 min
Answer: A
Mathematics
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What will be an ideal response?
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Multiply.2(-40)(-9)(-50)
A. 36,000 B. -36,000 C. -360,000 D. -3600
Mathematics
For the compound inequality, give the solution set in both interval and graph forms.9x - 6 < 3x or -3x ? -9
A. ?
B. (-?, 1) ? [3, ?)
C. (-?, ?)
D. (1, 3]
Mathematics
Add or subtract as indicated.(-2a + 7b - c) - (-4b - 6c + 2d)
A. -2a + 11b + 5c - 2d B. -2a + 11b - 5c + 2d C. -2a + 11b + 7c - 2d D. -2a + 11b + 5c + 2d
Mathematics