To simply determine if the solution is true. Simply plug in and or substitute the values of w for the expression. Then see if the left hand side is equal to the right side of the equation.
Answer:
x =
; y = 2
Step-by-step explanation:
You have a 45 -45 - 90 triangle. There are two things to know"
1. The hypothenuse = leg × 
2. The legs are equal.
The hypothenuse is opposite the right angle that is "y" in this problem.
Hypothenuse = leg × 
= 
The legs are =
Therefore x = 
Answer:
6x-15
Step-by-step explanation:
First plug in 3x-9 for x
2(3x-9) +3
Multiply 2 by (3x-9)
2(3x-9)=6x-18
add 3
6x-18+3=6x-15
hope this helps :)
you solve it by using your brain =) 132 degrees
Answer:
1
Step-by-step explanation:
ordered pairs with both positive numbers are in Q1