Perform the operation indicated. Simplify.
+ 
- 
A. 
B. 
C. 
D. 
Answer: A
Mathematics
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Use the method of undetermined coefficients to solve the differential equation.y'' + 4y' + 4y = x2 - 3x
A. y = C1e-2x + C2e2x + 
x2 - 
x + 
B. y = (C1 + C2x)e-2x + 
x2 - 
x + 
C. y = (C1 + C2x)e-2x + 
x2 + 
x - 
D. y = C1e-2x + C2e2x + 
x2 - 
x - 
Mathematics
Solve by elimination.2x + 2y = 204x - 
y = 
A. (4, 6) B. No solution C. (-3, 6) D. (3, 7)
Mathematics
Insert <, >, or = between the pair of numbers to form a true statement.0.637 
0.633
A. < B. > C. =
Mathematics
Find the exact answer.A car rental company charges $15 per day and $0.36 per mile to rent a car. What is the total bill if a car is rented for 2 days and is driven 123 miles?
A. $30.72 B. $74.28 C. $1889.28 D. -$14.28
Mathematics