D Question 2
20 pts
RD
2) An engineer is trying to figure out the value
of cos0 in order to ensure that the airplane
wing that they are constructing will keep the
plane in the air. They know that sin 0=4/5. Find
cos0.

Problem 3 a bank charges a service fee of $7.50 per month for a checking account. a bank account has $85.00. if no money is deposited or withdrawn except the service charge, how many months until the account balance is negative