Solve the system using the inverse of the coefficient matrix of the equivalent matrix equation. 8x - 8y - z = 10 x - 5y - 9z = -60-9x + y + z = -28
A. (4, 2, 6)
B. (-4, 2, 8)
C. (4, 6, 2)
D. No solution
Answer: A
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Solve the problem.Laura borrows $6250 at a rate of 10% compounded monthly. Find how much Laura owes at the end of 4 years.Use: A = P
ntwhere:A = final amountP = $6250 (the amount borrowed)r = 10% = 0.1 (the annual rate of interest)n = 12 (the number of times interest is compounded each year)t = 4 (the duration of the loan in years)
A. $9308.46 B. $302,500.00 C. $6460.95 D. $10,239.31
If possible, find the matrix product.Given A = 
; and B = 
, find AB.
A. AB = 
B. AB = 
C. AB = 
D. Cannot be multiplied
Use a table and/or a graph to decide whether the limit exists. If it exists, find its value.
A. 81 B. 4 C. -1 D. Does not exist
Find the derivative.y = 10x - 1
A. 10x - 1 ln 10x - 1 B. 10 ln 10 C. 10x - 1 ln x D. 10x - 1 ln 10