Solve the quadratic equation. x2 = 7 - 4x
A. {2 + 
}
B. {-2 ± 
}
C. {-1 ± 
}
D. {-2 ± 2
}
Answer: B
Mathematics
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Find the midpoint of the line segment joining the points P1 and P2.P1 = (y, 7); P2 = (0, 4)
A. 
B. 
C. 
D. 
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Solve.The line graph shows the target heart rate, in beats per minute, of people of various ages when performing an exercise stress test. Target Heart Rates for Stress Tests 
AgeUse the line graph to estimate the target heart rate for a 50-year-old taking the test.
A. 116 beats per minute B. 111 beats per minute C. 99 beats per minute D. 95 beats per minute
Mathematics
Find the unknown coordinate so that the ordered pair is a solution to the given equation.y = 
x + 4, ( ? , 6)
A. 14
B. 
C. 
D. 7
Mathematics
Graph the polar equation.r = 3 sin 2?
A. 
B. 
C. 
D. 
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