Solve the problem.A retired couple has $160,000 to invest to obtain annual income. They want some of it invested in safe Certificates of Deposit yielding 6%. The rest they want to invest in AA bonds yielding 10% per year. How much should they invest in each to realize exactly $14,400 in interest per year? Use the table below to write the system of equations that will solve the problem.
A. 
B. 
C. 
D. 
Answer: D
Mathematics
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Determine whether the graph represents a function.
A. A function B. Not a function
Mathematics
Solve the problem.If 2-x = 
, what does 4x equal?
A. 
B. 25
C. 5
D. -25
Mathematics
Compute the average of the RRAM and LRAM approximations to estimate the area between the graph of the function and the x-axis over the given interval using the indicated number of subintervals. (The function is non-negative on the given interval).f(x) = 2x + 5 ; [0, 5] ; 5 subintervals
A. 100
B. 50
C. 
D. 
Mathematics
Determine whether there is a maximum or minimum value for the given function, and find that value.f(x) = x2 + 16x + 55
A. Minimum: 0 B. Minimum: -9 C. Maximum: -9 D. Maximum: 9
Mathematics