Graph the solution set of the system of inequalities or indicate that the system has no solution.
A. ?
B. 
C. 
D. 
Answer: D
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Find the standard score for the given data value.A data value in the 88th percentile.
A. z = -1.4 B. z = 81.59 C. z = 1.2 D. z = -2.4
A deck of cards contains 52 cards. These cards consist of four suits - hearts, spades, clubs, and diamonds. Each suit contains one of each of the following: 2, 3, 4, 5, 6, 7, 8, 9, 10, jack, queen, king, and ace. Assume that one card is selected at random from a well-shuffled deck of cards.Find the probability that the card is a red 3.
A. 
B. 
C. 
D. 
Solve.Suppose that $12,000 is invested at an interest rate of 5.8% per year, compounded continuously. What is the doubling time?
A. 12 yr B. 13 yr C. 11 yr D. 2 yr
Factor by grouping.40r2 + 25ry - 8xr - 5xy
A. (8r + 5y)(x - 5r) B. (5r + 8y)(5r - x) C. (8r + 5y)(5r - x) D. (8r + 5y)(5x - r)