<h3>- - - - - - - - - - - - - - - ~<u>Hello There</u>!~ - - - - - - - - - - - - - - - </h3>
➷ The presence of Oxygen and the presence of slightly acidic water are essentials for rusting of Iron. To protect Iron from rusting, 'grease coating' can be used. This stops the oxygen and water from being able to make direct contact with the Iron. Also, galvanization can be tried. This is where the Iron is coated in a protective zinc coating to prevent it from rusting.
➶ Hope This Helps You!
➶ Good Luck (:
➶ Have A Great Day ^-^
↬ Hannah ♡
L:w=5:7
l/w=5/7
cross multiply
7l=5w
(7/5)l=w
P=2(L+W)
P=72
72=2(L+W)
divide both sides by 2
36=L+W
W=(7/5)L
36=L+7/5L
36=12/5L
times both sides by 5
180=12L
divide both sides by 12
15=L
W=(7/5)L
W=(7/5)15
W=21
length=15ft
width=21ft
dimeitions are 15 by 21ft
X intercepts are where the y value is 0. So, set y=0 and solve
0=x^2-9x+18
0=(x-6)(x-3)
x=6,3
The x intercepts are (6,0) and (3,0)
if you want to check, try these (x, y) pairs in the original equation.
Answer:
2/(3c+9)
Step-by-step explanation:
The only thing you have to do is distribute the 3 to (c+3) and that is 3c+9 so the answer is 2/(3c+9).
