Find the missing number in each data set, with the mean given.
(Work must be provided for the mean)

Mean = 7.8 | 5, 8, __, 12, 3
Mean = 12 | 9, 12, 15, 21, 4, __
Mean = 74.5% | 91%, 77%, 56%, __, 76%, 61%, 98%, 89%

45

step-by-step explanation:

step-by-step explanation:

i think something is missing in your question because y-1=(x-12) would not pass through the point (-4,-3). because if you replace x by -4 your are supposed to find y=-3 which is not the case her. if you replace x by -4 you find =-15.

i assume the right equation is y-1=1/4*(x-12) because this one is passing through both your points (if you are interested to know how i found that out i can tell you).

in this equation if i replace x by -4 i find y=-3 and if i replace x by 12, i find y=1 so the line representing this equation is passing through those 2 points.

then the standard form of the equation is finding an expression of y in function of x

y-1=1/4*(x-12)

y=x/4-3+1

y=x/4-2

hope that .

do you confirm there was a mistake in the question?

i dont know

step-by-step explanation:

5

step-by-step explanation: