Write the augmented matrix for the system of equations.
A. 
B. 
C. 
D. 
Answer: B
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Solve the problem.Suppose that R ={(x, y): 0 ? x ? 4, 0 ? y ? 4}, and P is the partition of R into four equal squares by the lines x =2 and y = 2. 
approximate 
by calculatiang the Riemann sum 
, assuming that 
are the centers of the four squares.
A. 96 B. 48 C. 384 D. 192
Find the quotient. If the quotient is a repeating decimal, write the answer with a bar over the repeating digit or digits.8.3 ÷ (-10)
A. -0.083 B. -0.73 C. -0.83 D. -0.073
Use a calculator to find the value. Give answers as real numbers and round to 4 decimal places, if necessary.sin (cos-1 0.8324)
A. 0.1389 B. 0.0175 C. 0.5542 D. 0.6324
Find the domain of the rational function.f(x) = 
A. All real numbers except 
B. All real numbers except - 
C. All real numbers except 0
D. All real numbers except 2