Use the law of cosines to find a:

So to use the given numbers you get:

Which would come out to equal about 35.94
so a=35.9
Answer:
$5
Step-by-step explanation:
medium popcorn- 2x
total - $23
large- 2x+3
23=4x+3
20=4x
x=5
Answer:
Below
Step-by-step explanation:
here is the factored form of a quadratic equation :
f(x) = a ( x +/- n ) ( x +/- n )
We can just plug in what we know into this form :
f(x) = 2 ( x + 4 )( x + 1 )
If you were to plug this into desmos it will show you the graph!
Hope this helps!
Answer:
3n -4
Step-by-step explanation:
We are adding 3 each time
-1+3 =2
2+3 = 5
The formula for an arithmetic sequence is
an = a1+d(n-1) where a1 is the first term and d is the common difference
an = -1+3(n-1)
= -1 +3n -3
= 3n -4