Solve the problem.
Let x = 28 and y = 7. Find the pitch of the roof.
A. 
B. 
C. 
D. 
Answer: A
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Factor by grouping.20x6 + 7x3 - 6
A. 20(x3 - 2)(x3 + 3) B. (4x3 + 1)(5x3 - 6) C. (5x3 + 2)(4x3 - 3) D. (4x3 + 3)(5x3 - 2)
Solve.An electronics manufacturer's revenue R for selling x mobile phones is given by 
A competing electronics manufacturer's revenue for selling a similar mobile phone is 
Under what circumstances will both manufacturers make the same revenue?
A. They will make the same revenue if they sell 430 phones. B. They will make the same revenue if they sell 0 or 215 phones. C. They will make the same revenue if they sell 0 or 430 phones. D. They will never make the same revenue.
Complete the ordered pair for the equation.y = -x - 8(-2, )
A. (-2, -4) B. (-2, 6) C. (-2, -6) D. (-2, 4)
Determine the type(s) of symmetry (symmetry with respect to the x axis, y axis, and/or origin) exhibited by the graph the equation. Do not sketch the graph.x2 + y2 - 4x - 16 = 0
A. y axis B. x axis C. origin D. all three E. none