Find the mean. Round to the nearest tenth unless otherwise stated.Average number of defects: 7.4, 8.3, 8.1, 7.8, 8.2, 7.4, 7.9, 8.1, 8.9, 7.4, 7.8, 6.5, 8.6, 8.3, 8.3, 7.9, 8.2, 7.9
A. 7.5
B. 7.9
C. 8.4
D. 8.2
Answer: B
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Solve the initial value problem.
= 3e-x, y(0) = 1, y'(0) = 0
A. y = 3e-x + 1 B. y = 3e-x + 3x - 2 C. y = 3e-x - 3x + 4 D. y = -3e-x + C
Find the limit and determine if the function is continuous at the point being approached.
sin
A. does not exist; no B. 1; yes C. does not exist; yes D. 1; no
Solve the equation and check your solution.8 + 
= 
A. x = 
B. x = - 
C. x = - 
D. x = 
Translate the problem to a system of equations, then solve using Cramer's Rule.Twice the water flow in the hot-water pipe is the same as three times the flow in the cold-water pipe. The combined flow is 1200 liters per hour. What is the flow in each pipe?
A. 600 liters/hr hot, 400 liters/hr cold B. 400 liters/hr hot, 600 liters/hr cold C. 720 liters/hr hot, 480 liters/hr cold D. 480 liters/hr hot, 720 liters/hr cold