Answer:
Use you calculator.
Step-by-step explanation:
There will be a way on your calculator to do tan^-1. It may be called arctan. They are the same thing.
-x +3 i think , i hope that helps
Answer:
66 galletas
Step-by-step explanation:
Si 3/11 de una caja contiene 18 galletas entonces matematicamente significa que:

Donde g son las galletas, ahora vamos a aislar la variable g:

Entonces una caja contiene 66 galletas
Distribute 7 to both n and 1
7(n + 1) = 7n + 7
5n + 7 = 7n + 7 - 2n
Combine like terms
5n + 7 = 7n - 2n + 7
5n + 7 = 5n + 7
If you want to solve for n, subtract 7 from both sides
5n + 7 (-7) = 5n + 7 (-7)
5n = 5n
then divide 5 from both sides
5n/5 = 5n/5
n = n
Effectively, this equation is <em>unsolvable</em>
hope this helps
Answer number 3
Step-by-step explanation: