Solve the following system of equations by substitution. If both variables cancel out, state the solution as no solution or infinitely many solutions.-5x + 4y = 58x = -5y
A. (2, -10)
B. infinitely many solutions
C. no solution
D. (-10, 2)
Answer: D
Mathematics
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Solve by the elimination method. x + 3y = 85x + 15y = 40
A. No solution
B. {(5, 5)}
C. {(x, 3x + 8)}
D. 
Mathematics
Use a calculator to find the acute angle between the planes to the nearest thousandth of a radian.7x - 2y - 7z = 9 and- 3x + 4y - 10z = -2
A. 1.199 rad B. 0.745 rad C. 0.372 rad D. 1.553 rad
Mathematics
Provide an appropriate response.Determine if 
converges or diverges. If it converges, to what number does it converge?
Fill in the blank(s) with the appropriate word(s).
Mathematics
Solve the inequality.-28x + 24 ? -4(6x - 3)
A. x ? 3 B. x ? 3 C. x > 3 D. x < 3
Mathematics