Answer:
Step-by-step explanation:
A= (7,-9)
B= ( 6,-12)
Answer:
Step-by-step explanation:
Hello,
Basically, we need to prove that is irrational
Let s assume that is rational
it means that we can find p and q (q different from 0) two integers <u>with no common factors other than 1 </u>
so that
And then we can write that
So is even so it means that p is even
so is divisible by 2*2=4
as it means that is even, meaning q is even
wait, p and q are then even !? but by definition they have no common factors. This is not possible.
so our assumption that is rational is false
So it means that this is irrational
and then is irrational too
Hope this helps
Answer:
A
Step-by-step explanation:
The equation of a line in slope- intercept form is
y = mx + c ( m is the slope and c the y- intercept )
Rearrange 3y + 2x = 1 into this form
Subtract 2x from both sides
3y = - 2x + 1 ( divide all terms by 3 )
y = - x + ← in slope- intercept form
with slope m = - → A
Supplementary angles: sum of the angles measure to be 180º
180º-A= B
Plug in...
180º-80º= 100º
So, angle B must be 100 degrees.