The following matrix was obtained by reducing the augmented matrix of a system of equations. From the matrix determine the solution to the system.
What will be an ideal response?
Mathematics
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Solve the problem. Round your answer, if appropriate.A man 6 ft tall walks at a rate of 3 ft/sec away from a lamppost that is 23 ft high. At what rate is the length of his shadow changing when he is 70 ft away from the lamppost? (Do not round your answer)
A. 35 ft/sec
B. 
ft/sec
C. 
ft/sec
D. 
ft/sec
Mathematics
Write the mixed number as an improper fraction.-15
A. - 
B. - 4
C. - 
D. - 
Mathematics
Find A-1 without a calculator.A = 
A. A-1 = 
B. A-1 = 
C. A-1 = 
Mathematics
Solve the equation by the zero-factor property.35x2 + 43x + 12 = 0
A. 
B. 
C. 
D. 
Mathematics