Match the equation with the surface it defines.x2 + y2 = 9 
A. Figure 3
B. Figure 4
C. Figure 2
D. Figure 1
Answer: C
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Answer the question.Which of the statements below suggests an appropriate level of precision?
A. Worldwide there will be 133,147,763 births next year. B. Worldwide there will be 133 million births next year. C. Worldwide there will be 133.147 million births next year. D. Worldwide there will be 100 million births next year. [to the nearest one hundred million]
Perform the indicated operation.
? 
A. 
B. 
C. - 
D. 
Use a calculator to find the approximate value of the composition. Round your answer to four decimal places. The expression may be undefined.sin (arctan (2))
A. 0.8944 B. 0 C. Undefined D. -0.8172
Use the graph of a quadratic function to find the solution set of the equation or inequality.x2 + 8x + 15 ? 0
A. (-?, -5) ? (-3, ?) B. {-5, -3} C. (-?, -5] ? [-3, ?) D. {-5, 3}