Solve the system of equations by the substitution method. Check your solutions.
A. 
B. 
C. 
D. 
Answer: D
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Solve the problem.The motion of an imaginary ball bouncing along a flat, level surface, such that each bounce is identical in peak height and horizontal velocity to the bounce before it, is modeled by the following functional relationship between the instantaneous height, f(x), of the ball above the flat surface and the horizontal position, x, of the ball along the surface:
Find ao, two nonzero cosine terms (if they exist), and two nonzero sine terms (if they exist) of the Fourier series for this description of motion.
A. f(x) = 
- 4
B. f(x) = 
- 
C. f(x) = 
- 
D. f(x) = 
+ 
Fill in the blank with one of the words or phrases listed below. 
The 
of a polyhedron is the sum of the areas of the faces of the polyhedrons.
A. perimeter B. surface area C. volume D. area
Solve the problem.62.5% of the students at a certain college are men. If the total number of students at the college is 1800, how many female students are there?
A. 1125 B. 900 C. 695 D. 675
Add. Simplify, if possible.
+ 
A. 
B. 
C. 
D. 