A) 8.9
Triangle is half of a square, so a square has double the area of the triangle.
40 x 2 = 80
Area is the square root of 80.
Square root of 80 = about 8.9
x = 8.9
Hey there!
We can solve inequalities just like equations. There is only one difference though. If you ever multiply or divide both sides by a negative number, you "flip" the inequality sign.
First, let's undo the parentheses.
2x-24+24<4x+20
We simplify.
2x<4x+20
We subtract 4x from both sides.
-2x<20
We divide both sides by -2 (we will need to flip the inequality sign).
x>-10
I hope this helps!
