Find the identical expression for the following.
?

?

A. ?
B.
C. ?
D.
E. ?

Answer: B

Mathematics

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Test the vector field F to determine if it is conservative.F = xyi + yj + zk

A. Conservative B. Not conservative

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Solve the problem.A quality-control inspector examined 250 calculators and found 12 of them to be defective. At this rate, how many defective calculators will there be in a batch of 23,500 calculators?

A. 1128 B. 3000 C. 8 D. 94

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Graph the system of linear inequalities. Tell whether the graph is bounded or unbounded, and label the corner points.

A. bounded;
 corner points (3, 0), (0, 3),(0, 1), (1, 0)

B. no solution

C. unbounded;
corner points (0, 0), (0, 1), (1, 0)

D. unbounded;
corner points (3, 0), (0, 3)

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Simplify the expression. Write the result using positive exponents only.Find the volume of the cube. 

A.  cubic in.
B.  cubic in.
C.  cubic in.
D.  cubic in.

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