Keep the denominators the same and subtract the numerators. So for example in your example:
7/8 - 3/8
Leave the 8 alone. Subtract 3 from 7.
7 - 3 = 4
So answer is:
4/8
Sometimes they may have to simplify the answer, and in this case, 4/8 could be simplified to 1/2
Answer: option a.
Step-by-step explanation:
By definition, we know that:
Substitute 
into the first equation, solve for the cosine and simplify. Then, you obtain:
As 
then 
:
Now we can find 
:
Answer:
you have to find the area of the rectangle at the bottom and then find the area of the 2 long triangles and the 2 small triangles and add them together
Step-by-step explanation:
Answer:
it will take him 12 days to exercise for 576 minutes
Step-by-step explanation:
48x12=576
