Use the sin(a - b) formula.
<span>sin(90 - x) = </span>
<span>sin90 cosx - cos90 sinx = </span>
<span>1 cosx - 0 sinx = </span>
cosx
Its simple really. If say a person bought a sandwich for $5.00, and the tax was 7%. You would have to multiply the amount of the sandwich to 0.07. Doing this would tell you how much the tax is. Then you would simply add them to get your total. This also applies with tip, markup, and discount.
Answer:
13
Step-by-step explanation:
The coeficcent of a term xa where a is the variable is x. Thus 13a results in 13 as the coeficcent
Answer:
50 50 chance
Step-by-step explanation: If there are 20 spins in total, 10 spins are even and 10 spins are odd.
