Solve the system by elimination. x - 5y = 4 7x - 4y = 28
A. ?
B. {(-4, -1)}
C. {(4, 0)}
D. {(5, 4)}
Answer: C
Mathematics
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Graph the inequality.(x + 3)2 + (y - 4)2 > 9
A. 
B. 
C. 
D. 
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Given that Force 1 = 70 pounds and Force 2 = 120 pounds, find the angle between the forces if the magnitude of the resultant force is 90 pounds. Round answer to the nearest degree.
A) 60° B) 40° C) 53° D) 45° E) 48°
Mathematics
Evaluate for the given values.y + x; x = 6.4, y = 8
A. 14.5 B. 14.4 C. 1.6 D. 7.2
Mathematics