Answer:
6) f=45
7) r=57
Step-by-step explanation:
the angles of a triangle will always add up to 180 degrees. Therefore, for the first one the three inside angles have to be 30, 15, and 135. If 135 is the supplementary angle to f, 45 must be the degree of f.
Same idea for the second one. 180-143=37. so 37+86+r=180. solve for r to get 57.
Answer:
I got 10.87 , which rounded would be 10.9
Step-by-step explanation:
because you use tan, opposite/adjacent
so it is 7.9tan54 to get your answer :)
x = 10.873417172
Answer:

Step-by-step explanation:
In order to solve this equation we should know the format of slope-intercept form, which is: 
Given you already have the y-intercept and slope for the line, it's a matter of plugging in the slope for the "m" variable slot and the y-intercept into the "b" variable slot.
This is turn gives us our equation: 
Hope this helped! If you have any questions feel free to ask!
They are both equal to 11/20. 55/100 can both be divided by 5. 55/5 is 11 100/5 is 20 so 11/20. 66/6 is 11 and 120/6 is 20, so 11/20.
Step-by-step explanation:
If the cost price of an article is less than selling price then there will be loss.
Loss=Cost Price - Selling Price