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