Answer:First make sure your calculator is on the right setting which would be a DEG. Then depending on the problem you would press COS, put whats needed inside the parentheses and close it.
Or if a different kind of problem you would press 2nd on the top of the calculator then Cos and continue the same way as the first one.
Step-by-step explanation:
Answer:
45°
Step-by-step explanation:
(180-90)/2 = 90/2 = 45°
Answer:
stars.
Step-by-step explanation:
We have been given that a particular galaxy has a total mass of 
grams and the average star in that galaxy has a mass of 
grams. We are asked to find the number of stats in the galaxy.
To find the number of stats in the given galaxy, we will divide total mass of galaxy by mass of an average star in the galaxy as:
Using exponent property 
, we will get:
Therefore, there are approximately 1000,000,000,000,000,000,000,000 stars in the given galaxy.
P(BA) = P(B) * P(A | B)
= 0.75 * 0.5
= 0.375
= 375/1000 = 75/200 = 15/40 = 3/8
