Solve the system using the matrix inverse method.2x + 8y + 6z = 204x + 2y - 2z = -23x - y + z = 11
A. {(2, -1, 4)}
B. {(2, 1, 6)}
C. ?
D. {(-1, 2, 1)}
Answer: A
Mathematics
You might also like to view...
Decide if the graph of the system is a pair of parallel lines, intersecting lines, or one line. x + 6y = 292x + 12y = 63
A. Intersecting B. Parallel C. One Line
Mathematics
Find the median of the set of data.10, 5, 24, 18, 21, 50, 32, 31
A. 21 B. 23.5 C. 22.5 D. 24
Mathematics
Evaluate the series, if it converges.9 + 3 + 1 + 
+ . . .
A. 
B. 13
C. 15
D. 
Mathematics
Solve the problem.If P dollars are invested at a simple interest rate r (in decimals), the amount A that will be available after t years is A = P + Prt. Find the total amount in an account if $3400 is invested at 8% simple interest for 5 years.
A. $4760.00 B. $5525.00 C. $3672.00 D. $1360.00
Mathematics