Rewrite sin ( x- 7pi/4) in terms of sin and cos

Apatient is given 50 mg dose of medicine the medicines effectiveness decreases every hour at a constant rate of 40% what is the exponential decay function that models this scenario how much medicine will be left in the patients system after 2 hours

What is the order of magnitude for the number of liters in a large bottle of soda served at a party

Give the equations of two different lines that are perpendicular to the line 3x + 4y = 7.