The students in a class collected data on the number of minutes per day some kids spend
brushing their teeth. Their data is shown in the dot plot below.
BRUSHING TEETH
4.5
0 0.5 1 1.5 2 2.5 3 3.5 4
Time Brushing (minutes)
Which statement correctly describes these data?
A
The median is 0.5 and the mean is less than the median
B
The median is 0.5 and the mean is greater than the median
The median is 1.5 and the mean is less than the median
D
The median is 1.5 and the mean is greater than the median

ok

step-by-step explanation:

not me

step-by-step explanation:

i wish i did i would like to get a desert ghost ball python

for this case we must apply distributive property to the following expression:

the distributive property states that:

then, when applying the property we have to multiply the -2 for each term within the parenthesis:

let's call the solutions x₁ = (5 - 2√7)/3 and x₂ = (5 + 2√7)/3

then the equation is (x-x₁)(x-x₂) = 0

if you fill that in you get a lot of numbers which you can recognize as ax²+bx+c=0.

step-by-step explanation:

you can see that a=1 (there is just an x²)

b = (-5 -2√7 + 2√7 - 5)/3 = -10/3

c = -2√7)/3 ) * (-5+2√7)/3) = -1/3

so your answer is 3x^2 – 10x – 1 = 0