Express the set x ≤ 3 using interval notation. Use "oo" (two lower case o's) for ∞.
X <= 3 takes all values less than 3 including 3.
In interval notation,
X <= 3 = (-
, 3 ]
[ Note that ' [ ] ' brackets used to show that endpoint included in the interval. ]
Express the set x ≤ 3 using interval notation. Use "oo" (two lower case o's) for...
Solve the inequality and write your answer in interval notation. Use "U" between the two intervals. Use "oo" (two lower case o's) for ∞. 15 x + 8 ≥ 18 + 12 x
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