D = {xl x is a whole number) E = {xl x is a perfect square < 36)
F= (x1 x is an even number between 20 and 30)
The expression Dn E is {1, 4, 9, 16).
The expression Dn Fis (12, 14, 16, 18).
DU (En F) is (all whole numbers).
(En F) is the empty set.
The expression D n (EU F) is 25

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

the thermometer is precise but not accurate

step-by-step explanation:

hey there!

if she's saving for six months, let's divide the total number we need for the trip by six, dividing it into the amount that needs to be saved for each month.

500 ÷ 6 =

she needs to save at least this amount each month, so we should use this symbol: ≥

let x be the amount she saves each month.

your final answer is x ≥

hope this !

im here

step-by-step explanation: