Math
posted by Kyle .
Solve the compound inequality
1 < X  2 LESS THAN OR EQUAL TO 7
Your problem:
1 < x  2 ≤ 7
Add 2 to all three quantities to get x by itself:
1 + 2 < x  2 + 2 ≤ 7 + 2
1 < x ≤ 9
Solution set can be expressed this way using interval notation:
(1, 9]
1<x2<=7
add 2
1<x<9
area of each layer. i want to know want is a layer.
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