Solve the problem.A bridge with a semi-elliptical arch extends over a river as shown. Find an equation of the ellipse that represents the arch of the bridge.
A. 
+ 
= 1
B. 
+ 
= 1
C. 
+ 
= 1
D. 
+ 
= 1
Answer: B
Mathematics
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Solve.Jim can run 5 miles per hour on level ground on a still day. One windy day, he runs 10 miles with the wind, and in the same amount of time runs 6 miles against the wind. What is the rate of the wind?
A. 1
mph
B. 2 mph
C. 20 mph
D. 5 mph
Mathematics
Match the equation to the correct graph.y = -(x + 5)2 + 7
A. 
B. 
C. 
D. 
Mathematics
Provide an appropriate response.Determine: 
Fill in the blank(s) with the appropriate word(s).
Mathematics
Find the indicated sum.
A. 2 B. 62 C. 54 D. -62
Mathematics