-15 and -42 both add to -57 and multiply to 630
So hmm notice the picture below
that's the 30-60-90 rule, notice your triangle, the bottom-left-angle is a right angle, 90°, the angle atop is 30°, so the angle on the bottom-right has to be 60°, thus is a 30-60-90 triangle, and as you can see on the triangle on the left in the picture, those are the ratios for it
so 8 will be x, what is the longer leg or side in yours then? well, is
Answer:
£7.50
Step-by-step explanation:
Hope this helps! If I could have brainliest I'm trying to rank up :)
180 I hope I helped you and that is is right.
Do you mean like equal groups