Find the intersection.x + y + z = 6, x + y = 8
A. x = t, y = 8 - t, z = -2
B. x = -t, y = 8 + t, z = -2
C. x = -1, y = 1 + 8t, z = -2t
D. x = -t, y = 8 + t, z = 2
Answer: B
Mathematics
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Solve the problem.Solve for a: 
A. a = 5
B. a = 6
C. a = 
D. a = 
Mathematics
Convert the angle in degrees to radians. Express answer as a multiple of ?.-90°
A. - 
radians
B. - 
radians
C. - 
radians
D. - 
radians
Mathematics
Find the x-intercept(s) of the graph of the equation. Graph the equation.y = x2 + 4x - 7
A. x-intercepts: -4 and 3
B. x-intercepts: none
C. x-intercepts: -2 ± 
D. x-intercept: 4
Mathematics
Perform the indicated operations. Write the resulting polynomial in standard form.(4x + 9)(-2x + 4)
A. 2x2 - 2x + 36 B. -8x2 - 2x + 36 C. -8x2 - 2x - 2 D. 2x2 - 2x - 2
Mathematics