**20pts from a phone survey, a researcher determined that the true estimate for the proportion of voters who will reelect the mayor is likely to be in the interval (0.39, 0.47) .

what is the survey’s margin of error?

enter your answer in the box.

If x = 12 and y = 3, what is the value of x - y 2? 81 6 3 18

If f(x)=-x^2+6x-1 and g(x)=3x^2-4x-1,find(f+g)(x)

Sample response: if the graph passes the horizontaline test, then the function is one to one. functions that are one to one have inverses that a therefore, the inverse is a hinction compare your response to the sample response above. what did you include in your explanation? a reference to the horizontal-line test d a statement that the function is one-to-one the conclusion that the inverse is a function done