Approximate the area under the curve and above the x-axis using n rectangles. Use right endpoints.f(x) = 3x2 - 2 from x = 1 to x = 5; n = 4

A. 154
B. 140
C. 144
D. 150


Answer: A

Mathematics

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Answer the question.What are the domain and range for y = 2x?

A. Domain is all x ? 0 and range is all y ? 0. B. None of these is correct. C. Domain is all x > 0 and range is all y > 0. D. Domain is all x ? 0 and range is all y > 0.

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Find the limit. 

A. 1
B. ?
C. 0
D.

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Translate the following into an equation where x represents the unknown number. Then solve the equation for x.The quotient of a number and 3 is - .

A. 3= - , x = - 
B.  = - , x = 
C.  = - , x = 
D.  = - , x = - 

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Simplify by rationalizing the denominator.

A.
B.  
C.
D.

Mathematics