Which equation has the solutions x = startfraction negative 3 plus-or-minus startroot 3 endroot i over 2 endfraction?

x² + 3x + 3 = 0

Step-by-step explanation:

The equation has the solutions .

The equation is a quadratic equation having two roots α and β, and they are  

α = and β =

Therefore, sum of the roots (α + β) = - 3 and the product of the roots  

α×β  

=

=

=

= 3

Therefore, the equation is x² - (α + β)x + αβ = 0

⇒ x² + 3x + 3 = 0 (Answer)

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