Answer:
120m3
Step-by-step explanation:
V=4/3 x π x r³
= 4/3 x 3.14 x 3.1³
≈ 120 (nearest tenth)
The order doesn't matter.
When you choose 1 object from objects, you can do it in ways.
So the answer is ways.
So first you would need to FOIL the problem (first-outer-inner-last) so you would multiply x by x and get {x²} then you would multiply x by 1 so you would get just plain {x} then multiply 2 by x so to get {2x} then multiply the last terms 2 and 1 together to get {2} so then put it all together = x² + x + 2x + 2 then you add like terms together so you end up with = x² + 3x + 2 as the answer
It should be written in the form ax²+bx+c=0,
so you meed to move -8 to the left side
2x²+6x+8=0
the number in front of x² is a
the number in front of x is b
the number without x is c,
so a=2, b=6,c=8