Solve the problem.Suppose that y is directly proportional to x and that y = 39 when x = 6. Find the constant of proportionality k. Then use y = kx to find y when x = 15.
A. k = 6.25; y = 93.75
B. k = 6.5; y = 112.5
C. k = 6.5; y = 97.5
D. k = 234; y = 
Answer: C
Mathematics
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Solve the equation.
- 
= 
A. -5, 5 B. -5 C. No solution D. 5
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Use radical notation to write the expression. Simplify if possible.(5x)2/9
A. 
B. 
C. 
D. 5
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Write a stochastic matrix corresponding to the transition diagram.
A = 0.5B = 0.6C = 0.3 D = 0.6
A. 
B. 
Mathematics
Condense the expression 7(log x- log y) to the logarithm of a single term.
A. 
B. 
C. 
D. 
E. 7(log x - log y)
Mathematics