Solve.Jim can run 5 miles per hour on level ground on a still day. One windy day, he runs 11 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. 5 mph
B. 1
mph
C. 17 mph
D. 2
mph
Answer: B
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Solve the problem. Round your result to an appropriate number of significant digits.Raul, who is 1.98 m tall, wishes to find the height of a tree. He walks 18.87 m from the base of the tree along the shadow of the tree until his head is in a position where the tip of his shadow exactly overlaps the end of the tree top's shadow. He is now 5.77 m from the end of the shadows. How tall is the tree? Round to the nearest hundredth.
A. 2.85 m B. 0.605 m C. 8.46 m D. 6.48 m
Evaluate the radical function at the indicated value.f(x) = 
f(-126)
A. -5 B. 24 C. 25 D. -125
Find an equation for the ellipse described.Center (0, 0); major axis vertical with length 12; length of minor axis is 8
A. 
+ 
= 1
B. 
+ 
= 1
C. 
+ 
= 1
D. 
+ 
= 1
Solve the equation by completing the square.15n2 + 43n + 30 = 0
A. 
, 
B. 
, 
C. - 
, - 
D. - 
, - 