Find the solution(s) (if any) of the system of equations by the graphical method. If the equations are dependent, write your answer with x being arbitrary.
A. {(8, -6)}
B. {(x, 10 - 2x)}
C. {(4, 6)}
D. inconsistent
Answer: D
Mathematics
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Given y = f(u) and u = g(x), find dy/dx = f'(g(x))g'(x).y = 
, u = 4x - 7
A. 
B. - 
C. - 
D. - 
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Solve the problem.A motorcycle daredevil is planning a stunt to perform at a county fair. A ramp must be built to give him a 20% grade, or slope. If the vertical height at the end of the ramp must be 20 ft to assure that the stunt is a success, what must be the length of the horizontal run?
A. 20 ft B. 100 ft C. 360 ft D. 3.6 ft
Mathematics
Factor the expression completely.rT1 - rT2 + RT1 - RT2 (physics)
A. (r - R)(T1 + T2) B. (r + T2)(T1 - R) C. (r + R)(T1 - T2) D. Cannot be factored.
Mathematics
Find an antiderivative of the given function.e-4x/5
A. e-4x/5
B. 
e-4x/5
C. - 
e-4x/5
D. - 
e-4x/5
Mathematics