Translate the statement into a mathematical equation.9 times a number subtracted from 7 times the number is 26.
A. 7x + 9x = 26
B. 7x - 9x = 26
C. 7(x - 9) = 26x
D. 7x(9 - x) = 26
Answer: B
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Express as a product.logcZ-6
A. clog6Z B. -6logc(-Z) C. -6logcZ D. -clog-6Z
Find the expected value of the optimal strategy.A backpacker is planning a three-day trip in the backcountry with a friend. She wishes to keep the weight of her pack to a minimum. She has decided to bring either rock climbing shoes or an extra fleece jacket but not both. The fleece jacket will be useful if the weather is cold. The rock climbing shoes will be useful if the weather is warm. In trying to decide which of these two items to bring, the backpacker decides on the utilities shown in the following payoff matrix:WarmColdWeatherWeather
According to the weather forecaster,
the probability of cold weather is 0.4. The backpacker selects the item that will maximize the expected utility. What is the expected utility in this case? A. 14.8 B. 6 C. 17 D. 7.2
Solve the problem.The sum of a student's three scores is 236. If the first is 14 points more than the second, and the sum of the first two is 26 more than twice the third, what was the first score?
A. 90 B. 70 C. 56 D. 76
Find the exact value of y, or state that y is undefined.y = sin-1 (-5)
A. ? B. -5 C. 0 D. undefined