Solve. x + 2y + 4z = 7 2y + 5z = 1 z = -1
A. (-1, 3, 5)
B. (5, 3, -1)
C. (-1, 5, 3)
D. (5, -1, 3)
Answer: B
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
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Add or subtract as indicated.(7x2 - xy - y2) + (x2 + 3xy + 6y2)
A. 6x2 - 4xy - 7y2 B. 8x2 + 2xy + 5y2 C. 7x2 + 3xy + 6y2 D. 8x2 + 4xy + 7y2
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Write the number as a Greek numeral.24
A. ?? B. ?? C. ?? D. ??
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Solve for x.x + 2.0016 = 68.264
A. 662.624 B. 66.2641 C. 66.2624 D. 66.264
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