Answer: 94
Step-by-step explanation:
Simplify each term
Multiply 2 by 2
4+9x9+9
Multiply 9 by 9
4+81+9
Simplify by adding numbers
add 4 and 81
85 +9
add 85 and 9
94
Hope this helps~
Answer:
C
Step-by-step explanation:
Answer: 121
Answer:
Step-by-step explanation:
May I please see the graph?
To solve this problem you must apply the proccedure shown below:
1. You have that:
- T<span>he equation d=1/2(n(n-3)) gives the number of diagonals for the polygon.
- The polygon that has 65 diagonals..
2. When you clear n, you obtain:
d=n(n-3)/2
d=(n^2-3n)/2
2x65=n^2-3n
n^2-3n-130=0
3. When you solve the quadratic equation, you obtain:
n=13
Therefore, the answer is: 13 sides. </span>
Answer:
the answer is a. 147
Explaination:
A triangle always has a sum of 180°.
We already have the angle of two sides give.
10° and 23°
To find the last missing side, you add 10° and 23°, and minus the result from 180°.
10+23= 33
180-33 = 147
