It is an inequality in x.
The answer is x < 0.5
Yes
25
No. This is not an inequality, because you need something > something_else, or less than or 'not equal' or 'greater than or equal', etc. Since it has an x cubed term, it is not a quadratic.
This compound inequality cannot be solved.
It is an inequality in x.
8
The answer is x < 0.5
Yes
25
x < 2/3
No. This is not an inequality, because you need something > something_else, or less than or 'not equal' or 'greater than or equal', etc. Since it has an x cubed term, it is not a quadratic.
'r' is equal to, or anywhere between, -13 and 38 .
You need to reverse the inequality symbol when multiplying both sides of an inequality by a negative number because you are changing the sign of both sides of the equation. Since inequality, such as "less than", means "to the left of" on the number line (where left is minus and right is plus) then a number that is less than another will be greater than the other if the signs were reversed. Example: 3 is less than 4, but -3 is greater than -4.
No. To be an inequality, it must somewhere have a greater than, less than, greater-or-equal, or less-or-equal sign.
3