Solve the problem.How many 2-digit numbers can be formed using the digits 1, 2, 3, 4, 5, 6, 7, 8, 9, and 0? No digit can be used more than once.

A. 1,814,400
B. 90
C. 45
D. 3,628,800


Answer: B

Mathematics

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A.

B.

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Find the zeros of the polynomial function. State whether the graph crosses the x-axis, or touches the x-axis and turns around, at each intercept. f(x) = -x2(x + 4)(x2 - 1)

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Mathematics