Subtract using a vertical format.(5x - 2) - (6x + 9)
A. -x + 7
B. x + 11
C. -x - 11
D. 11x + 7
Answer: C
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Use the method of variation of parameters to solve the differential equation.D2y - 16y = e-4x
A. y = C1e-4x + C2e4x + 
xe-4x
B. y = C1e-4x + C2e4x - 
xe4x
C. y = C1e-4x + C2e4x - 
xe-4x
D. y = C1e-4x + C2e4x - 
xe-4x
Solve.- 
= -7
A. 
B. 7
C. 49
D. 
Solve the problem.Jennifer invested 
in her savings account for 4 years. When she withdrew it, she had 
. Interest was compounded continuously. What was the interest rate on the account? Round to the nearest tenth of a percent.
A. 5.6% B. 5.8% C. 5.7% D. 5.85%
Find the set if the universal set U = {-8, -3, -1, 0, 2, 4, 5, 6, 7, 9}, A = {-8, -3, -1, 2, 5}, B = {-3, 2, 5, 7}, and C = {-1, 4, 9}.B'
A. {-1, 0, 4, 6, 9} B. {-8, -1, 4, 6, 9} C. {-8, -1, 0, 4, 6, 9} D. {-8, -1, 0, 4, 6, 7, 9}