Solve the problem.On a sunny day, a building and its shadow form the sides of a right triangle. If the hypotenuse is 37 m long and the shadow is 27 m, how tall is the building? (Round to the nearest tenth.)
A. 26.3 m
B. 10.0 m
C. 45.8 m
D. 25.3 m
Answer: D
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Find the standard form of the equation of the ellipse satisfying the given conditions.Foci at (0, -3), (0, 3); Vertices at (0, -4), (0, 4)
A. 
+ 
= 1
B. 
+ 
= 1
C. 
+ 
= 1
D. 
+ 
= 1
Solve the following system by any appropriate method. If there is no real number solution, so state.3x2 - y2 = 14x2 + 2y2 = 14
A. (
, 2), (
, -2), (-
, 2), (-
, -2)
B. (
, 4), (
, -4), (-
, 4), (-
, -4)
C. (
, 2), (
, -2), (-
, 2), (-
, -2)
D. no real solution
Use the associative law of multiplication to write an equivalent expression.9[m(7 + n)]
A. 63m + 9n B. (9m)(7 + n) C. (9m)(7n) D. 9[m(n + 7)]
Solve the problem.If the formula R = -0.037t + 50.1 can be used to predict the world record in the 
eter dash 
after 1925, for what years will the world records be 47.8 seconds or less?
A. t > 1963 B. t > 1989 C. t ? 1987 D. t ? 1988