Graph the solution set of the following system of inequalities and find the coordinates of points where any lines intersect.
A. 
B. 
C. 
D. 
Answer: A
Mathematics
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Add or subtract. Then simplify. If a denominator has two or more factors (other than monomials), leave it in factored form. Express the answer using the denominator of the first fraction when applicable.
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A. 
B. 
C. 
D. 
Mathematics
Simplify.12 + 9 ÷ 3 ? 5 - 9
A. 36 B. 18 C. 26 D. 81
Mathematics
Using a parametric graph of the unit circle, find the function value.cos 
A. -0.4142 B. -0.3827 C. 0.9239 D. -2.4142
Mathematics
Form a polynomial f(x) with real coefficients having the given degree and zeros.Degree: 4; zeros: -1, 2, and 1 - 2i.
A. f(x) = x4 - x3 + x2 + 9x - 10 B. f(x) = x4 - x3 + 3x2 - 5x - 10 C. f(x) = x4 - 3x3 + 5x2 - x - 10 D. f(x) = x4 - 3x3 - 3x2 + 7x + 6
Mathematics