Solve the problem.How many liters of a 20%-alcohol solution must be mixed with 20 liters of a solution that is 80% alcohol to get a solution that is 40% alcohol?
A. 60 L
B. 40 L
C. 6 L
D. 4 L
Answer: B
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Assume that a sample of bivariate data yields the correlation coefficient, r, indicated. Use the critical values table for the specified sample size and level of significance to determine whether a linear correlation exists.r = -0.923 when n = 6 at ? = 0.05
A. No B. Yes
Graph.y =log1/3x
A. 
B. 
C. 
D. 
A bacteria culture had a population of 10 million at 10:00 A.M., and by 2:00 P.M. had grown to 16 million. Predict the population at 6:00 P.M. that same day. ? Please round your answer to the nearest tenth of a million. ? __________ million
Fill in the blank(s) with the appropriate word(s).
Use a calculator to solve the equation. Round to the nearest hundredth.-2.12x + 3.16(2.4 + 2.8x) = -4.41x + 3.9277
A. 1.03 B. 4.97 C. -1.58 D. -0.33