Solve the absolute value equation.
= 
A. x = 
, 27
B. x = 
C. x = 
, 27
D. x = 9, 
Answer: C
Mathematics
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Solve the equation after making an appropriate substitution.x4 - 17x2 + 16 = 0
A. {-4, 4} B. {-4, -1, 1, 4} C. {-16, 16} D. {-17, 17}
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Simplify. Assume that all variables represent positive real numbers.-3
- 9
A. 11
B. -5
C. -12
D. 6
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Give the x-intercepts and y-intercepts of the graph.
A. x-intercept: 4; y-intercept: 1 B. x-intercept: -4; y-intercept: -1 C. x-intercept: -1; y-intercept: -4 D. x-intercept: 1; y-intercept: 4
Mathematics
Solve the problem.A man 6 ft tall walks at a rate of 3 ft/s away from a lamppost that is 14 ft high. At what rate is the length of his shadow changing when he is 25 ft away from the lamppost?
A. 
ft/s
B. 
ft/s
C. 
ft/s
D. 
ft/s
Mathematics