The answer is <u><em>3.</em></u> Just combine like terms.
Answer:
Step-by-step explanation:
(1+1+4+6+8+10+20)-(-30+40)-45-(-56+34)= solving bracket
50-(10)-45-(-22)=
Open bracket
50-10-45+22=
50-10-(45+22)=40-67=-27
Answer:
see below
Step-by-step explanation:
The sum of the interior angles is 180
<1 + <2 + <4 = 180
<1 + 31+ <4 = 180
<1 + <4 = 180-31
<1 + <4 = 149
<2 + <3 = 180 because it forms a straight line
31 + <3 = 180
<3 = 180-31
<3 = 149
Setting theses equal (since they are both equal to 149)
<1 + <4 = <3
The exterior angle is equal to the sum of the opposite interior angles
I think that you are correct, I don't quite understand the question, but I think you're right!
Answer:
y = (x - )² -
Step-by-step explanation:
Given
y = (x + 2)(x - 3) ← expand factors
= x² - x - 6
Use the method of completing the square
add/ subtract ( half the coefficient of the x- term )² to x² - x
y = x² + 2(- ) x + - - 6
= (x - )² -