Answer:yes 5,5
Step-by-step explanation:
They are equal.
(a/b)^2 = (a/b)(a/b) = (a*a)/(b*b) = a^2/b^2
Only one triangle because 70+30+80=180 and 1 triangle has in total 180°
Since y varies directly as x, you know that y=245 and x=7 can be used as a proportion, 245/7. When you multiply this proportion to 9, you get 315. This is the value of y when x=9.
y=315
