Solve the problem.A ladder is resting against a wall. The top of the ladder touches the wall at a height of 12 ft. Find the length of the ladder if the length is 4 ft more than its distance from the wall.
A. 12 ft
B. 16 ft
C. 24 ft
D. 20 ft
Answer: D
Mathematics
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For the pair of functions, perform the indicated operation.f(x) = 
, g(x) = 
Find (f - g)(x).
A. 
B. 
C. 
D. 
Mathematics
Solve the problem.Find the volume of the solid bounded by the ellipsoid 
+ 
+ 
= 1 and the planes 
and 
(The area of an ellipse with semiaxes a and b is ?ab)
A. 240.00? units3 B. 5400.00? units3 C. 60.00? units3 D. 120.00? units3
Mathematics
Perform the operation and reduce to lowest terms.
÷ 1
A. 
B. 
C. 
D. 
Mathematics
Find the product.(r - 15)2
A. 225r2 - 30r + 225 B. r2 + 225 C. r + 225 D. r2 - 30r + 225
Mathematics