Solve the problem.A quantity, 
of it, 
of it, and 
of it, added together, equals 22. What is the quantity?
A. 
B. 
C. 
D. 
Answer: A
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Solve the given differential equation. (The form of yp is given.)D2y + 6Dy + 5y = 2 + ex (Let yp = A + Bex.)
A. y = c1e-5x + c2e-x - 
+ 
ex
B. y = c1e5x + c2ex + 
+ 
ex
C. y = c1e-5x + c2e-x + 
- 
ex
D. y = c1e-5x + c2e-x + 
+ 
ex
Use the order-of-operations agreement to simplify.
- 
+ 
A. 
B. 
C. 
D. 
Determine the standard equation of the ellipse described.Center at (0, 0); focus at (-7, 0); vertex at (8, 0).
A. 
+ 
= 1
B. 
+ 
= 1
C. 
+ 
= 1
D. 
+ 
= 1
Graph the quadratic function using its properties. Based on the graph determine the domain and range of the quadratic function.f(x) = -x2 + 10x
A. domain: {x|-? < x < ?}
range: {y|y ? 25}
B. domain: {x|-? < x < ?}
range: {y|y ? -25}
C. domain: {x|-? < x < ?}
range: {y|y ? 25}
D. domain: {x|-? < x < ?}
range: {y|y ? -25}