Answer:
x = 20
Step-by-step explanation:
The interior angles of a regular octagon have measures of ...
180° -360°/8 = 135°
We want that equal to the given expression.
7x -5 = 135
7x = 140 . . . . add 5
x = 20 . . . . . divide by 7
The value of x is 20.
Answer:
1200 feet of ribbon
Step-by-step explanation:
2 feet per doll
600 dolls
600 dolls x 2 feet per doll
1200 feet of ribbon for 600 dolls
Answer/Step-by-step explanation:
I did the work on paper:
In mathematics, a proof is a deductive agruement for a mathematical statement.In the argument,other prevoiusly establised statements, such as theroms, an be used. In principle, a proof can be traced back to self-evident or assumed statements, known as axioms, along with accepted rules of inference.
