Answer:
We can describe FOIL using the distributive property of multiplication. For real numbers x, y, and z the distributive property of multiplication states that

Now let
, where v and w are real numbers.
Then 
Here, we can again use the distributive property of multiplication to get

Hence, it follows that

This is the method of FOIL (first: xv, outside: xw, inside: yv, last: yw)
For example, 
Answer:
1/13 ≈ 7.69%
Step-by-step explanation:
There are 4 sixes in a standard deck. So the probability is 4/52 = 1/13, or about 7.69%.
The answer is 39 and I know because I took the test and got it right
Answer:
68.5
Step-by-step explanation:
Arc ABE = 360 - 2x
Arc AE = 2x
half the difference between the two arcs is 43
43 =
[360 -2x - (2x)]
Answer:
x = sine 70° / 8
Step-by-step explanation: