Solve the system by the method of your choice. Identify systems with no solution and systems with infinitely many solutions, using set notation to express their solution sets.x + y = -1x - y = 17
A. {(8, 9)}
B. {(8, -9)}
C. {(x, y) | x + y = -1}
D. ?
Answer: B
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Represent the shaded area in the figure group with an improper fraction.
A. 
B. 
C. 
D. 
Use front-end rounding to round each number. Then, add or subtract the rounded numbers to get an estimated answer. Finally, find the exact answer.estimate exact
A. Estimate: 13.7; exact: 13.7722 B. Estimate: 13.6; exact: 13.7722 C. Estimate: 13.6; exact: 13.6821 D. Estimate: 13.7; exact: 13.7821
Solve the problem.To estimate the number of people in Springfield, population 10,000, who have a swimming pool in their backyard, 250 people were interviewed. Of those polled, 79 had a swimming pool. How many people in the city might one expect to have a swimming pool? (Round to the nearest whole number, if necessary.)
A. 2 people B. 3160 people C. 316 people D. 31,646 people
Provide an appropriate response.Explain how (p + q)2 differs from p2 + q2 by expanding (p + q)2.
What will be an ideal response?