Solve the problem.How many of the numerals 30, 31, ..., 39 have horizontal reflection symmetry? Consider the numeral 1 as a vertical segment ?.
A. 3
B. 2
C. 4
D. 5
Answer: C
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The given number expresses angle measure. Express the measure in terms of degrees.
A. 508° B. 504° C. 522° D. 486°
Write the fraction in simplest form.
A. 
B. 
C. 
D. 
Sociologists often study the dominance of one group over another. Suppose in a certain society there are four classes which we will call: abigweel, aweel, upancomer, and pon. Hint: These are pronounced "A big wheel," "A wheel," "Up and comer," and "peon." ? Abigweel dominate aweel, upancomer, and pon. Aweel dominate upancomer and pon. Upancomer dominate pon. ? Matrix [ D ] represent these dominance relationships. We say that an individual has two-stage dominance over another if 1 appears in the matrix [ D ] 2 for those individuals. Write the two-stage dominance matrix. ?
A. 
B. 
C. 
D. 
Use the payoff matrix to determine the best 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
Which of the items should the
backpacker bring if the probability of cold weather is 0.4? A. fleece jacket B. rock climbing shoes C. neither