360°÷n = number of sides of a regular polygon.
n= one of the exterior angle of a regular polygon.
180°-60°=120°
n=120°
360°÷120°= 3
2 quarters, 3 nickels, 1 Penny
Answer:
D. Factoring trinomials
Step-by-step explanation:
The factoring trinomials method is the best way to factor the expression, since it is in the standard trinomial form ax² + bx + c
In this method, you can factor the expression by finding 2 factors of c that add up to b.
The expression is not in the simplest form, and difference of squares cannot be used because there are no perfect squares. Prime factorization is also not used for factoring expressions with variables.
So, D is the right answer.
Answer:
14.2825569 or 14.28
Step-by-step explanation:
Use the pythagorean theorem, put 20 in as c and 14 as b, then solve
20^2-14^2=a^2
400-196=204
square root of 204= 14.2825569
hope it helps you!!!!!!!!!!
