Cos30 = square root of 3/2=0.8660
The cos of 60 is the sin of 30 n vice versa.
U can use the unit circle for this too
Answer:
Yessirr
Step-by-step explanation:
If they left 15% the tip should be
$11.40, making the total fee $87.40
Fraser got 14 questions right
questions correct 70/5 = 14
—— ——
total questions 100/5 = 20
therefore he got 14 questions right
you divide 100 by 5 because percents are always out of 100 and that gets you 20 which is how many questions the spelling bee had
then you do the same to the top (divide by 5) and get 14
14/20 questions were answered right
70% of the questions were correct