Find the solution to the equation below? x^2-4=0

x=±2

Step-by-step explanation:

x^2-4=0

Add 4 to each side

x^2-4+4=0+4

x^2 = 4

Take the square root of each side

sqrt(x^2) = sqrt(4)

x=±2

c

step-by-step explanation:

it isn't d, because the interquartile range is from 27-57. and the interquartile range is basically half the data, it's pretty obvious.

it isn't b, because like i said earlier, the interquartile range is from 27-57. 57-27 is 30. the real range has to be longer

not a either. although it looks like it, 3/4 of the data is not greater than 27. but if c is wrong than this should be correct

the correct answer is c, because 13 is the point in which the plot starts

3

step-by-step explanation: