Solve the differential equation using the method of variation of parameters.
y" - 5y' + 4y = 4 sin x
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Provide an appropriate response.Andrea scored 
on her midterm exam. Her percent score on the exam was 0.71%.
A. True B. False
Solve the problem.Sales for a small clothing company can be modeled by the linear function 
, where x is the number of years since 2005 and S(x) is in dollars. Find the sales in 2008.
A. $215,283 B. $79,287 C. $207,757 D. $75,524
Solve the problem.The probability of drawing a face card from a standard deck of 52 cards is 
. The probability of drawing a diamond is 
. Which card has a higher probability of being drawn, a diamond or a face card? Explain.
A. A diamond, because 
is greater than 
.
B. A face card, because 
is greater than 
.
Find the equation of the hyperbola satisfying the given conditions.Vertices: (0, ±8); asymptotes y = ± 
x
A. 
- 
= 1
B. 
- 
= 1
C. 
- 
= 1
D. 
- 
= 1