Answer:
Subtract 23 from both sides
Step-by-step explanation:
This is how algebra works, to get a variable by itself you have to do the opposite to both sides. Hope this helped.
Answer:
"They add up to 180 degrees, because they are a pair of supplementary angles"
Step-by-step explanation:
When parallel lines are cut by transversal, it creates vertical angles (opposite of each other) that are equal AND also supplementary angles (that are adjacent to each other and fall in one line). They add up to 180 degrees.
Looking at the figure, we see angle 1 and 2 fall in one line which is 180 degrees. Thus, angles 1 and 2 are supplementary, they add up to 180 degrees.
The correct choice is "They add up to 180 degrees, because they are a pair of supplementary angles"
Answer:
12
Step-by-step explanation:
64 m^2 - 9 n^2 -------(1)
first think about squares
what is 64 m^2 = ( 8m)^2
also what is 9n^2 = (3n)^2
so 64 m^2 - 9 n^2 = (8m)^2 - (3n)^2
= (8m -3n) (8m+3n) ------(2)
to check multiply (2) to get (1)
