Write the augmented matrix for the system. Do not solve the system. 6x + 5z - 1 = 0 4y + 8z - 16 = 0-2x + 9y + 7z - 45 = 0
A. 
B. 
C. 
D. 
Answer: B
Mathematics
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Solve the problem.Find the expected number of girls in a family of 4.
A. 1.5 B. 2.5 C. 1.75 D. 2
Mathematics
Solve the problem.On a business trip, Jon must drive from his office to a clients's office, a distance of 224 miles. He sets off a 8 a.m. Suppose that he drives at a constant speed of 69 mph. Express the function f(t) that gives his distance from the client's office at time t hours (with t = 0 corresponding to 8 a.m.)
A. f(t) = 224 + 69t
B. f(t) = 69t
C. f(t) = 224 - 69t
D. f(t) = 224 - 
Mathematics
Evaluate.6C6
A. 720 B. 180 C. 1 D. 0.5
Mathematics
Simplify the expression.-14 - (3 - 13s)
A. -17 + 13s B. 11 - 13s C. -11 - 13s D. 17 + 13s
Mathematics