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

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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Mathematics

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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Mathematics

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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Mathematics

Find an equation that matches the parabola's graph.

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

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Mathematics