Plz do 3,4,5 asap

number 3 says to write a formula for the line that goes through point and then the question

number 4 says find coordinates of midpoint s of a line segment ab where a( 1,2) and b (-1,4)

number 5 says to find the probability that a 6 sided dice fell on

a) even number

b) number from 1 to 6 (including)

y=mx+b

step-by-step explanation:

m is slope, b is y-intercept

answer: expected value of x = 1.0

step-by-step explanation:

p(x=0) = 0.25

p(x=1) = 0.50

p(x=2) = 0.25

expected value for x = 0×0.25 + 1×0.5 + 2×0.25 = 1.0

well there are two answers for that.

1: you need 120 ones then that will equal up to 120.

2: you could also do one 100 and 2 tens.

those are the answers that i have thought of.