What the hell...You okay man?
Let x = the length of the triangle's hypotenuse
using proportions, this is what the equation looks like:
cross multiply to get:
divide both sides by 45 to get
x=12
20 boxes because 6 times 5 equals 30 so 4 times 5 is 20
The x-intercepts are (-3,0) and (11,0)