I need help and please write out the answer​

(2/9) = 77°

Step-by-step explanation:

In your calculator, depending on what type you have, there should be a button that says 2nd. There should also be a button that reads cos, which is cosine.

We want inverse cosine, so click 2nd then cos. This should be inverse cos, .

Your calculator should have (

So type 2/9 in the parentheses because is the same as 2 divided by 9.

So it should be (2/9) in your calculator. Press enter and you should have 77.16041161.

Here are some scientific calculators and where to find their buttons:

22 dimes and 9 nickels

step-by-step explanation:

6 hours 48 min

step-by-step explanation:

68÷5=13.6

13.6×30=408min=6 hours 48 min.

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