Answer:
9/41
Step-by-step explanation:
The base line is
The square root of (41*2-40*2),=9
Thus, cosC=9/41
The answer to the question
Answer:
Only 2 people would be able to go and she would have $5.50 to spend on snacks.
Answer:
III quadrant
Step-by-step explanation:
Given are two complex numbers as
Recall Demoivre theorem as
(cosA+isinA)(cos A+isin B) = cos(A+B)+isin(A+B)
Hence here we have product as
A+B = 3pi/4+pi/2
= 5pi/4
cos 5pi/4+isin 5pi/4 will be the product
Since 5pi/4 lies between pi and 3pi/2, we find that this lies in III quadrant.