Simplify the expression. Write your answer without negative exponents. Whenever an exponent is negative or zero, assume that the base is not zero.(x-3)-3
A. 
B. -x6
C. 
D. x9
Answer: D
Mathematics
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Solve the problem.The grocery expenses for six families were 
, 
, 
, 
, 
, and 
. Compute the mean grocery bill. Round
your answer to the nearest cent. A. $70.13 B. $68.44 C. $102.67 D. $82.13
Mathematics
Solve the problem.Evaluate 
at (u, v) = (5, 5) for the function w(x, y, z) = xz + yz - z2; x = uv, y = uv, z = u.
A. -10 B. 90 C. 100 D. 0
Mathematics
Shade the region in the xy-plane that satisfies the system of inequalities.9x2 + 4y2 ? 36(x - 1)2 - y ? 0
A. 
B. 
C. 
D. 
Mathematics
Simplify.eln x44
A. x B. ln x44 C. x44 D. ex44
Mathematics