n - 1/2 > 3/4
n > 5/4
list all the subsets
{5, 10, 15}
{ } {5, 10}
{5} {5, 15}
{10} {10, 15}
{15} {5, 10, 15}
x > 3
(3, inf)
y/3 < 2
y < 6
A is the set of even whole numbers that are less than 18. Write this in roster form and set builder notation.
set builder: {x | x is an even whole number, x < 18}
roster: {0, 2, 4, 6, 8, 10, 12, 14, 16}
x < -2
(-inf, -2)
6(c - 1) < -18
c < -2
A = {1, 2, 3, 4, 5, 6, 7, 8, 9}
B= {2, 4, 6, 8}
find union and intersections
A U B = {1, 2, 3, 4, 5, 6, 7, 8, 9}
A intersection B = {2, 4, 6, 8}
-5 < x <10
(-5, 10)
0 < -8b < 12
-3/2 < b < 0
There are 15 cats. Ten are striped, 7 are striped and have green eyes. The rest have green eyes but are not striped. How many have green eyes but are not striped.
5
x < 0 or x > 5
(-inf, 0) or (5, inf)
5m < -10 or 3m > 9
m < -2 or m > 3