How many lines are determined by 11 points if no 3 points lie on a straight line?
?

A. 110
B. 50
C. 39
D. 44
E. 55


Answer: E

Mathematics

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Provide an appropriate response.Using the law of sines, find b if a = 27, A = 55° and B = 72° in triangle ABC. Round to four significant digits.

A. 23.26 B. 31.35 C. 0.5271 D. 34.66

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Completely factor the polynomial or state that the polynomial is prime.125 - 8x3

A. (5 - 2x)(25 + 4x2) B. (125 - 2x)(1 + 10x + 4x2) C. (5 + 2x2)(25 - 10x + 4x2) D. (5 - 2x)(25 + 10x + 4x2)

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Determine whether the equation defines y as a function of x. 8x + x2 + 25 = y

A. function B. not a function

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Find the value for the function.Find -f(x) when f(x) = 3x2 - 4x - 2.

A. 3x2 + 4x - 2 B. -3x2 + 4x + 2 C. 3x2 + 4x + 2 D. -3x2 + 4x - 2

Mathematics