Solve the compound inequality. Graph the solution set.0.5 < 0.2x - 0.5 < 1.4
A. (5, 9.5)
B. [5, 9.5]
C. (0, 4.5)
D. (5, 9.5)
Answer: A
Mathematics
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Solve the system using Cramer's rule and a graphing calculator. (Round to two decimal places.)5.27x - 0.53y = 1-5.83x - 9.51y = 6
A. {(-0.12, 0.70)} B. {(0.70, 0.12)} C. {(-0.70, 0.12)} D. {(0.12, -0.70)}
Mathematics
Simplify. Assume all variables are non-negative real numbers.
A. 21
B. 7
C. 3
D. 7
Mathematics
Use properties of logarithms to condense the logarithmic expression. Write the expression as a single logarithm whose coefficient is 1. Where possible, evaluate logarithmic expressions.
[3 ln (x + 6) - ln x - ln(x2 - 1)]
A. ln 
B. ln 
C. ln 
D. ln 
Mathematics
SD( X )
The random variable X has the probability density function 
over [0,?) .
Compute the following quantity.
Mathematics