Give the center and radius of the circle. Then sketch its graph.x2 + y2 = 25
A. center (1, 1), r = 25
B. center (0, 0), r = 25
C. center (0, 0), r = 5
D. center (1, 1), r = 5
Answer: C
Mathematics
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Perform the operation and give the answer in the same numeration system. Write the answer as simply as possible.Add 
and 
A. 
B. 
C. 
D. 
Mathematics
Solve the inequality. Graph the solution set and write the solution set in set-builder notation.x2 - 2x - 35 < 0
A. {x|x < -5}
B. {x|x > 7}
C. {x|-5 < x < 7}
D. {x|x < -5 or x > 7}
Mathematics
Solve the equation by completing the square.a2 + 14a + 45 = 0
A. 
, - 
B. 5, 9
C. 54, -9
D. -5, -9
Mathematics
Solve the problem.June wants to work for 12
hours at her part-time job this week. She has already worked 6
hours. How many more hours does she need to work?
A. 6
hr
B. 5
hr
C. 5 hr
D. 4
hr
Mathematics