How many elements are in the union of four sets if
each of the sets has 100 elements,
each pair of the sets shares 50 elements,
each three of the sets share 25 elements,
and there are 5 elements in all four sets?

answer:

the answer is 54.

step-by-step explanation:

substitute b with 18 and h with 6. you'll get 1/2(18 · 6). first, multiply 18 by 6 to get 108. next, divide 108 by 2 (or 0.5, it's the same) to get 54.

i hope this ! : -)

answer:

√((7 - (-3))^2 + (-6 - (-9))^2) = √109 = 10.44

answer:

i got 8, but i'm not sure.

step-by-step explanation:

so i first did -6 + 5, and i got -1 as an answer. then i did -1 plus 9 because both sides need to be equal. i wrote that x = 8 but that wasn't an option. i'm not sure if this was and i'm really sorry if it's not.

$4.50

.75×3=2.25

2.25×2=4.50