
Here's the solution ~
Let's find the measure of hypotenuse first, by using Pythagoras theorem ;





Now, let's find the asked values ~



For Cos y :



As we can see that both sin x and Cos y have equal values, therefore The required relationships is equality.
I.e Sin x = Cos y
Hope it helps ~
Answer:
OMGGGGG I remmeber this :,) But sadly I failed math so sorry :((
Step-by-step explanation:
Miles per hour = Total miles/ total no of hours
1764 miles divided by 28 hours = 63 mph
Without the tip it was $60. If you are being asked to add the tip it will be $69