Solve the problem.In a lab experiment 2 grams of acid were produced in 32 minutes and 8 grams in 39 minutes. Let y be the grams produced in x minutes. Write an equation for grams produced.
A. 7y = 6x + 30
B. 7y = 6x - 178
C. 7y = 6x + 178
D. y = x + 30
Answer: B
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Solve the problem. Round your answer to 2 decimal places when necessary.In a recent year, there were 62 accidents in commercial aviation among major airlines over 8.5 million departures. Find the accident rate in units of accidents per 100,000 departures.
A. 73 accidents per 100,000 departures B. 1.4 accidents per 100,000 departures C. 0.73 accidents per 100,000 departures D. 7.3 accidents per 100,000 departures
Find the extreme values of the function subject to the given constraint.
A. Maximum: 6 at 
minimum: 3 at 
B. Maximum: 6 at 
minimum: -3 at 
C. Maximum: 9 at 
minimum: 3 at 
D. Maximum: 11 at (6, 3, 2), (6, 2, 3), (3, 2, 6), (3, 6, 2), (2, 3, 6), (2, 6, 3); minimum: 1 at 
Provide an appropriate response.The solution of (x + 9)(x - 1)(x - 5) ? 0 is
A. x ? -9, 1 ? x ? 5. B. -9 ? x ? 1, x ? 5. C. x ? -9. D. x ? 5. E. -9 ? x ? 1.
Evaluate the function f at the indicated value.
{7x + 1, if x < 99x, if 9 ? x ? 139 - 9x, if x > 13
A. 64 B. 90 C. -62 D. -81