We can parameterize this part of a cone by

with

and

. Then

The area of this surface (call it

) is then
Ok so u have to set them equal to 180 bc they r supp lines so 1.15+x=180 sub 15 from both sides x=165
2.28+x-4=180 combine like terms 28-4=24 rewrite 24+x=180 den sub 24 from both sides x=156
I will put the rest in the comments if you still don't know
Answer:
The slope is 3/5.
Step-by-step explanation:
I am assuming you mean
10x + 6y = 84
6y = -10x + 84
y = -5/3 x + 14.
So the slope of this line is -5/3 and the slope of a line perpendicular to it is
-1 / -5/3 = 3/5.
Answer:
it's simple substitution
Step-by-step explanation:
1. (7)(2)/2= 14/2=7
2. (5)-(8)/4=
3. (6)-(1)+6=11
4. (19)+(1)^3=21