Answer:
7.81
Step-by-step explanation:
= √(5^2 + 6^2)
= √(25 + 36)
= √61
= 7.81
(I'll do my best to explain this:) ) if you put two triangles together they equal a rectangle. In other words if you split a rectangle from upper left corner to lower right corner you get two triangles. So if you multiply the triangle formula twice you get the rectangle formula.
3.c - 8 = 5
(3.c - product of 3 and a number)
(-8 : 8 less)
Easy, so absolute value makes anything inside into positive
|x|=2
therefor x=-2 or x=2 since it would be made posotive
answer is -2 and 2
