Match the equation with the surface it defines.x2 + y2 = 16 
A. Figure 2
B. Figure 1
C. Figure 4
D. Figure 3
Answer: A
Mathematics
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Solve by completing the square to obtain exact solutions.x2 + 8x = 3
A. -1 ± 
B. 4 + 
C. -4 ± 
D. -4 ± 2
Mathematics
Express the number in scientific notation.7,910,840
A. 7.91084 × 107 B. 7.91084 × 10-6 C. 7.91084 × 106 D. 7.91084 × 101
Mathematics
Answer the question or complete the sentence to make a true statement.When the absolute value of a positive number equals the absolute value of a negative number, the sum of the positive and the negative number is .
A. Not known B. Zero C. Negative D. Positive
Mathematics
Write the number in scientific notation.-44,000
A. -4.4 × 10-5 B. -4.4 × 10-4 C. -4.4 × 105 D. -4.4 × 104
Mathematics