Solve the system of equations.3x - y = 02y + z = 19x + 4z = 30
A. x = -2, y = -6, z = -7
B. x = 2, y = 6, z = 7
C. x = 4, y = 12, z = 14
D. Inconsistent
Answer: B
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Evaluate the integral by making a substitution and then using a table of integrals.
A. ln 
- 8 ln 
+ C
B. ln 
+ x - 8 ln 
+ C
C. - 8 ln 
+ C
D. ln 
- 8 ln 
+ C
Write the inequality in interval notation.x ? -2
A. [-2, ?) B. (-2, ?) C. (-?, -2) D. (-?, -2]
Solve the problem.A triangle has a perimeter of 60 inches. Its shortest side measures 3 inches shorter than its middle side, and its longest side measures 18 inches longer than its middle side. Find the lengths of the triangle's three sides.
A. 16 inches, 13 inches, 31 inches B. 12 inches, 15 inches, 33 inches C. 28 inches, 25 inches, 7 inches D. 24 inches, 27 inches, 9 inches
Rotate the axes so that the new equation contains no xy-term. Graph the new equation.xy +16 = 0
A. 
B. 