The matrix 
has no inverse if x is
A. 
.
B. 48.
C. 0.
D. 27.
E. 3.
Answer: D
Mathematics
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Graph the pair of functions on the same plane. Use a dashed line for g(x).f(x) = 
, g(x) = 
+ 4
A. 
B. 
C. 
D. 
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Solve the problem.An electrician charges a fee of $45 plus $30 per hour. Let y be the cost in dollars of using the electrician for x hours. Find the slope-intercept form of the equation.
A. y = 45x + 30 B. y = 30x - 45 C. y = 45x - 30 D. y = 30x + 45
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Solve the equation.10y = 5y + 5 + 4y
A. -50 B. -5 C. 50 D. 5
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Write a fraction to represent the shaded portion of the figure.
A. 
B. 
C. 
D. 
Mathematics