The answer is k= 2.5
Explanation: Rotating the shape will show that one side is 20:8. Divide these together and you get 2.5.
Hope this helps
I will show you how to do #5:
a). -20 + 2(n-1) Original Expression
-20 +2n - 2 Distributive Property
-22 + n Combine Like Terms
Final Expression: -22 + n
b). 1.5 + (-2.5)(n -1) Original Expression
1.5 + -2.5n + 2.5 Distributive Property
4 - 2.5n Combine Like Terms
Final Expression: 4 - 2.5n
The answer is 2.24
Hope this helps
Answer:
Step-by-step explanation:
Solve for the value of 
:
-The variable cannot equal to 
since division by zero is undefined. SO, you multiply both sides by 
, which is the least common multiple of 
, 
, and :
-Take 
and subtract it from 
:
-Divide both sides by 
:
So, the value of of 
.
Triangle ABC is isosceles (even tho' it doesn't look so).
m<BDE = m<BED because of that.
Thus, 66 degrees + 2 m<BDE = 180 degrees, and
2 m<BDE = 114 degrees. Thus, m<BDE = 57 degrees.
