A series of BUN measurements was done and the standard deviation was determined to be 1.24mg/dL with a mean average of 18.4 mg/dL. What is the coefficient of variation for this set of measurements?
A. 6.74mg/dL
B. 0.0674
C. 6.74%
D. 6.74%
Answer: D
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Write in logarithmic form.52 = 25
A. log525 = 2 B. log52 = 25 C. log255 = 2 D. log225 = 5
Write an equation to describe the situation.Mike is on vacation in Costa Rica. He has a budget of $910 for accommodation. He will stay as long as his budget allows. The more expensive hotel costs $66 per night and the budget hotel costs $43 per night. He plans to stay 7 more nights in the budget hotel than in the expensive hotel. Find the number of nights n that he will stay at the expensive hotel.
A. 43(n + 7) + 66 = 910n B. 43(n + 7) + 66n = 910 C. 43(n - 7) + 66n = 910 D. 43n + 66(n + 7) = 910
Solve the problem.The liquid portion of a diet is to provide at least 300 calories, 36 units of vitamin A, and 90 units of vitamin C daily. A cup of dietary drink X provides 60 calories, 12 units of vitamin A, and 10 units of vitamin C. A cup of dietary drink Y provides 60 calories, 6 units of vitamin A, and 30 units of vitamin C. Set up a system of linear inequalities that describes the minimum daily requirements for calories and vitamins. Let x = number of cups of dietary drink X, and y = number of cups of dietary drink Y. Write all the constraints as a system of linear inequalities.
A. 60x + 60y ? 300 12x + 6y ? 36 10x + 30y ? 90 x ? 0 y ? 0 B. 60x + 60y > 300 12x + 6y > 36 10x + 30y > 90 x > 0 y > 0 C. 60x + 60y ? 300 12x + 6y ? 36 10x + 30y ? 90 x ? 0 y ? 0 D. 60x + 60y ? 300 12x + 6y > 36 10x + 30y ? 90
Solve the problem.A roulette wheel contains 72 slots numbered 1 through 72. The slots 1,4,7,... are red, the slots 2,5,8,... are green, and the slots 3, 6, 9,.... are brown. When the wheel is spun, a ball rolls around the rim and falls into a slot. What is the probability that the ball falls into a green slot?
A. 
B. 
C. 
D. 