Solve the system of equations by the substitution method. Check your solutions. For any dependent equations, write your answer in ordered pair form.
A. {(-4, 12), (1, 7)}
B. {(2, 6)}
C. {(4, 4), (-1, 9)}
D. {(4, 12), (-1, 9)}
Answer: C
Mathematics
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72,683?
A. 72.683 m? B. 72.683 k? C. 7.2683 m? D. 7.2683 M?
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Solve the problem.April shoots an arrow upward into the air at a speed of 64 feet per second from a platform that is 21 feet high. The height of the arrow is given by the function h(t) = -16t2 + 64t + 21, where t is the time is seconds. What is the maximum height of the arrow?
A. 17 ft B. 85 ft C. 64 ft D. 21 ft
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Graph the rational function.f(x) = 
A. 
B. 
C. 
D. 
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Find the slope of the line.A line perpendicular to 9x = 8y - 5
A. 
B. - 
C. - 
D. - 
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