Use the determinant feature of a graphing calculator to solve the system by Cramer's rule . (Round to one decimal place.)1.5x + 3.1y - 2.3z + 0.6w = 2.76.1x - 0.5z - 3.4w = 0.811.5y - 2.2w = 04.0x + 3.0y - 2.1z = 9
A. {(4.3, 1.3, 4.9, 6.7)}
B. {(7.9, 2.4, 9.0, 12.3)}
C. {(3.6, 1.1, 4.1, 5.6)}
D. {(3.2, 1.0, 3.7, 5.0)}
Answer: C
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Divide to find the exact answer. Express the answer as a whole or mixed number when possible and simplify.5
÷ 8
A. 
B. 
C. 
D. 
Provide an appropriate response.Let f(x) = 
Find all points of discontinuity for this function.
What will be an ideal response?
Provide an appropriate response.Rewrite as a logarithmic equation: 5-2 = 
A. log
5 = -2
B. log5 -2 = 
C. log5 
= -2
D. log-2 
= 5
Solve the problem. Round amounts to the nearest cent and percents to the nearest tenth of a percent.Selling price = $70.24; Rate or markup based on cost = 94%. Find the cost and markup.
A. Cost: $4.21 Markup: $66.03 B. Cost: $66.03 Markup: $4.21 C. Cost: $34.03 Markup: $36.21 D. Cost: $36.21 Markup: $34.03