Find the area of the circle. Use 3.14 for ?. Round results to two decimal places in necessary

A. 43.96 in.2
B. 153.86 in.2
C. 21.98 in.2
D. 38.47 in.2


Answer: D

Mathematics

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Find the gradient field F of the function f.f(x, y, z) = x6y7 + 

A. F = (6x5 + 5x4)i + 7y6j + k
B. F = 6x5y7i + 7x6y6j - k
C. F = (6x5 + 5x4)i + 7y6j - k
D. F = i + 7x6y6j - k

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Solve the problem.How many different 10-letter words can be formed from the letters in the word ACCOUNTING? 

A. 1,814,400 B. 907,200 C. 90,720 D. 3,628,800

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Rewrite the statement using the indicated property of addition.Associative (insert grouping symbols): 5 + 10 + 11 = ______

A. 5 - (10 + 11) B. 5 + (11 + 10) C. 11 + 10 + 5 D. (5 + 10) + 11

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Find an equation that matches the parabola's graph.

A. x = -y2 B. y = x2 C. x = y2 D. y = -x2

Mathematics