PLEASE HELP Isoke is solving the quadratic equation by completing the square.

10x2+40x-13=0

10x2+40x=13

A(x2+4x)=13

What is the value of A?

-13
4
10
40

Complete the solution of the equation. find the value of y when x equals to 1 9x-5y=29

Select the margin of error that corresponds to the sample mean that corresponds to each population: a population mean of 360, a standard deviation of 4, and a margin of error of 2.5%

These box plots show the number of electoral votes one by democratic and republican presidential candidates for the elections from 1984 through 2012. which statement best compares the spread of the data sets