Evaluate the given expression.sec-1 (-1)
A. 0
B. 2?
C. ?
D. 
Answer: C
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Write the equation for the plane.The plane through the point P(7, -7, 7) and normal to n = -5i - 6j + 6k.
A. -7x + 7y + 7z = -119 B. -5x - 6y + 6z = 49 C. 5x + 6y - 6z = -119 D. 7x - 7y - 7z = -119
Answer the question.Suppose that of the total amount collected in taxes by the U.S. government, 25% of it comes from families with incomes greater than $200,000. If taxes are increased by 5% across the board, which of the following statements will be true?
A. A family with an income greater than $200,000 will have to pay 25% more in taxes. B. 25% of the additional revenue collected by the government will come from families with incomes greater than $200,000. C. 5% of the additional revenue will come from each income group. D. The total amount collected from families with incomes greater than $200,000 will increase by 25%.
Factor the trinomial completely. If the trinomial cannot be factored, say it is prime.x3 - 2x2 - 15x
A. x(x2 - 2x - 15) B. x(x - 3)(x - 5) C. x(x + 3)(x - 5) D. x(x + 3)(x + 5)
Determine the quadratic function whose graph is given.
A. f(x) = x2 - 2x + 3 B. f(x) = x2 + 2x - 3 C. f(x) = -x2 - 2x - 3 D. f(x) = x2 - 2x - 3