Solve by substitution and check. x + 5y = 24 -3x + 4y = -15
A. (8, 4)
B. No solution
C. (-9, 4)
D. (9, 3)
Answer: D
Mathematics
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A. 
B. 
C. 
D. 2
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Evaluate the indicated trigonometric function of the acute angle ?.If ? is an acute angle of a right triangle and if tan ? = 
, then find the value of sin ?.
A. 
B. 
C. 
D. 
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Solve. 3x4 = 9x3
A. 0, 3 B. 3, 3 C. 0, -3 D. -3, 3
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Solve the problem.Find the length of 
. Round to the nearest tenth. A(4, 2), B(5, 1)
A. 9.5 B. 4.5 C. 1.7 D. 1.4
Mathematics