Step-by-step explanation:
( 12 : 4 : 8 ) ÷ 24 = 1/2 : 1:6 : 1/3
Need more information. You said which of the following and didn't put any questions under it
The answer is
A=1/2bh
So the base number times height number divided by two!!
You're original equation has a -81, so the factored form will have to have a positive and negative multiplying one another to achieve that...
f(x) = x(x + 9)(x - 9)
79-y=2y+22
Add y on both sides
79=3y+22
Subtract 22 from both sides
57=3y
Divide by 3 on both sides
19=y