Solve the problem.You have $50,000 and wish to invest part at 10% and the rest at 6%. How much should be invested at each rate to produce the same return as if it all had been invested at 9%?
A. $37,500 at 6%, $12,500 at 10%
B. $37,000 at 10%, $13,000 at 6%
C. $37,000 at 6%, $13,000 at 10%
D. $37,500 at 10%, $12,500 at 6%
Answer: D
Mathematics
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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
Mathematics
Find Pk+1 from the given statement Pk.Pk: 5 + 10 + 15 + . . . + 5k = 
A. Pk+1: 5 + 10 + 15 + . . . + 5k + 5(k + 1) = 
B. Pk+1: 5 + 10 + 15 + . . . + 5k + (5k + 1) = 
C. Pk+1: 5 + 10 + 15 + . . . + 5k + 5(k + 1) = 
D. Pk+1: 5 + 10 + 15 + . . . + 5k + (5k + 1) = 
Mathematics
Solve the equation.4(3x - 5 ) = 256
A. {128}
B. {-3}
C. 
D. {3}
Mathematics
Divide.
÷ 
A. - 1
B. 
C. - 
D. - 34
Mathematics