Solve.On a sunny day, a building and its shadow form the legs of a right triangle. If the hypotenuse of the triangle is 35 m long and the shadow is 20 m, how tall is the building? Round to the nearest tenth of a meter.
A. 15.0 m
B. 28.7 m
C. 19.1 m
D. 40.3 m
Answer: B
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Find the area of the region specified in polar coordinates.the region enclosed by the curve r = 8 + cos ?
A. 43?
B. 
?
C. 
?
D. 65?
Find the equation of the ellipse satisfying the given conditions. The center is at the origin.End of minor axis (5, 0), vertex (0, 6)
A. 
+ 
= 10
B. 
+ 
= 1
C. 
+ 
= 1
D. 
+ 
= 1
Solve the problem.A ladder is slipping down a vertical wall. If the ladder is 17 ft long and the top of it is slipping at the constant rate of 5 ft/s, how fast is the bottom of the ladder moving along the ground when the bottom is 
from the wall?
A. 9.4 ft/s B. 0.63 ft/s C. 1.9 ft/s D. 10.6 ft/s
Provide an appropriate response.How are a - b and b - a related to each other?
What will be an ideal response?