A March 2018 Gallup survey asked a sample of 10411041 adults if they wanted stricter laws covering the sale of firearms. A total of 697697 of the survey respondents said yes. Although the samples in national polls are not SRSs, they are similar enough that our method gives approximately correct confidence intervals. How large a sample would be needed to get a margin of error half as large as the margin of error for a sample of 10411041 adults

could you reply to this with the question so i can ?

answer: 2x + 2 − 2 = 10 − 2; subtraction property of equality

step-by-step explanation:

if x = 1, then the answer is 3.5

let's cover over the formula of the vertex:

y = a(x – h)^2 + k

in this formula, (h,k) are the vertex, always remember that the positive or negative value of the vertex is based on the sign it has.

for example, if the vertex is -3,-6 then both the x and y value would have the positive sign attached to it and if it were a positive x and y value, then a negative sign would be attached to it.

with that being said, for our problem the x value is a positive one so we are looking for a number with a negative sign next to it, in this case the first and second choice.

however, for the first answer choice it isn't quite part of the formula so we know that the answer choice correctly displays the x value.

to confirm, we can see if the -1 fits correctly with the second answer choice, and as mentioned above a negative number will have a positive sign attached to it. so, for our problem we can see that -1 has been changed to +1, so we can confirm that the second answer choice is correct.

hence, our final answer is y=(x - 1)^2 + 1