Answer:
Step-by-step explanation:
Answer:
4th Option, 45.1
Step-by-step explanation:
Cos(Ф) =
Ф = Cos⁻¹ ()
Ф = 45.1
Hope this helps!
Answer:
D 69
Step-by-step explanation:
Answer: Find the formula and there you go
Step-by-step explanation: Each 4 papers = 3 minutes keep adding it until I get near twenty one and don't go over
So find a common lets use 2 on the top
2x-4y=30
2x+4y=-18, now we have 4x=12, x=3
so lets substitute, lts use the top
3-2y=15
-2y=12
y=-6
im not sure x could be 12 i would try plugging each one them into the equation and see with one balances out
the other one is x=12, y=-3/2