since there are 180 degrees in a triangle so :
65+72+y=180 add like terms
137 + y=180 now subtract 137
y= 180-137
y=43 degrees
Answer:
-2.5
Step-by-step explanation:
We need to find the slope using and two points
m = ( y2 -y2)/(x2-x1)
= ( 25-20)/(-10 - -8)
= 5/( -10+8)
= 5/-2
- 2.5
Answer:
12 = x
Step-by-step explanation:
Given:
Principal = $1400
Simple rate of interest = 1.25%
Time = 6 month
To find:
The balance of the account after simple interest.
Solution:
The formula for simple interest is

Where, P is principal, r is the rate of interest in % and t is time in years.
Time = 6 months
=
year
= 0.5 year
Putting 1400, r=1.25, t=0.5 years.



Now, the amount is



Therefore, the balance of the account after the simple interest is $1408.75.
Use tan because you are dealing with the opposite and adjacent sides