- Simplify (-4)2 without exponents?

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How to graph the linear equation -x+2y=-1? Does the blaux portable ac cool a room or only the person sitting in front of it ? Given the following confidence interval for a population mean compute the margin of error E
10.63__ __How much longer would it take to mow an acre with a mower that has a 4 ft wide deck vs. one w/ a 6 ft wide deck (if moving at same speed)? Find the value of a&b if (x^2-5x+4) is a factor of the polynomial 2x^3+ax^2+bx-4. Express in factored form.?