Solve the system of equations. x + y + z = 7 x - y + 2z = 75x + y + z = 11
A. (1, 4, 2)
B. (4, 2, 1)
C. (4, 1, 2)
D. (1, 2, 4)
Answer: D
Mathematics
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Match the equation with the surface it defines.
- 
- 
= 1 
A. Figure 1 B. Figure 2 C. Figure 4 D. Figure 3
Mathematics
Find the missing length, x, for the similar triangles.
A. x = 12; y = 16 B. x = 22.5; y = 31.5 C. x = 7; y = 13 D. x = 10; y = 14
Mathematics
Solve the equation.
+ 
= x - 8
A. 
B. 
C. 
D. 
Mathematics
Determine whether the given equation is a rational function.f(x) = 
A. Yes B. No
Mathematics