Answer:
r = 12
Step-by-step explanation:
108 = 9r | Given expression
12 = r | Divide both sides by 9. 108 becomes 12 and 9r becomes r.
-3/5 to get 10 then divide 10 by 2/3.
Answer:
Step-by-step explanation:
x^2 + 10x + 5 - 30 = 0
x^2 + 10x - 25 = 0
x^2 + 10x = 25
x^2 + 10x + 25 = 25 + 25
(x + 5)^2 = 50 <====
the area is 180 cm. to find the perimeter you would do 15+15+14+14 to get 54 cm. So for area you do (l×w) which is 15×14=180.
