1. m∠1 + m∠2 = 180°
2. Definition of bisector
3. m∠1 + m∠3 = 180°
4. Substitution Property of Equality
Answer:
The answer to your question is: side 3 = 2a + 6
Step-by-step explanation:
Data
Triangle
side 1 = 5a + 3 inches
side 2 = 2a + 3 inches
side 3 = ?
Perimeter = 9a + 12
Process
Perimeter = side 1 + side 2 + side 3
9a + 12 = (5a + 3) + (2a + 3) + side 3
side 3 = 9a + 12 - 5a - 3 - 2a - 3
side 3 = 2a + 6
Answer:
n ≥ -12
Step-by-step explanation:
Change the less than or equals sign to an equals sign
-7(n+7) = 35
Use distributive property to figure out what -7(n+7) equals
-7n-49 = 35
Add 49 to both sides
-7n = 84
Divide both sides by -7
n = -12
Bkuz you want n -7(n+) to be less than or equal to 35 you have to change the equals sign in n = -12 to a greater or equal to sign
Hope this helps!
First, find the area of the circle.
A=(pi)*r^2
A=3.14*10^2
A=3.14*100
A=314
Next, find the area of the square
A=l*w
A=20*20
A=400
Finally, subtract the area of the circle from the area of the square
400 - 314 = 86