Solve the radical equation. Check all proposed solutions.
= y + 4
A. y = 6
B. y = 5
C. y = -6
D. y = -5
Answer: A
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Find the values of x for which the given function is concave up, the values of x for which the function is concave down, and any points of inflection.y = 7x - x3
A. Concave up for x < 0, and x > 1, concave down for 0 < x < 1, points of inflection at (0, 0), (1, 7) B. Concave up for x < 0, concave down for x > 0, point of inflection at (0, 0) C. Concave down for all x, no points of inflection D. Concave down for x < 0, concave up for x > 0, point of inflection at (0, 0)
Use the preference table to answer the question.Students in several classes are asked to rank their choices for days to come to campus to make presentations as a final project. There are three days where a big enough venue is available for each of the classes, Monday (M), Tuesday (T) and Friday (F). The results are shown in the following preference table.Number of Votes135853015First ChoiceFFTMSecond ChoiceTMFTThird ChoiceMTMFa. Which option is favored over all others using pairwise comparisons?b. Which option wins the vote using the Borda count method?c. Is the Condorcet criterion satisfied?
A. a. Friday, b. Friday, c. Yes B. a. Tuesday, b. Tuesday, c. No C. a. Tuesday, b. Monday, c. No D. a. Friday, b. Tuesday, c. Yes
Find the probability.When a single card is drawn from an ordinary 52-card deck, find the probability of getting a black 7.
A. 
B. 
C. 
D. 
Write an equation for the line described. Give your answer in slope-intercept form. m = 
, through (4, -5)
A. y = 
x - 
B. y = - 
x + 
C. y = 
x + 
D. y = 
x - 