Answer:
120°
Step-by-step explanation:
We can see that b=a by opposite exteriors.
So a+1/2a=180
1.5a=180
a=180/1.5=120
And since b and a are equal, b also equals 120°
Answer: -3x^2-3x+9
Step-by-step explanation:
-3(x^2+x-1)+12 = -3x^2-3x-3+12 = -3x^2-3x+9
0, 7 is placed in the top middle quadrant because the x value is 0, therefore it does not move left or right, and y is placed up into the middle. Mark Branliest. :-)
Answer:
y = x^2 + 3/4
Step-by-step explanation:
If an equation has an exponent, it is nonlinear.
<u><em>Hope this helps!</em></u>
You didn't include a picture of the answer choices, but this is what the answer would look like. Pretend the different shapes represent different rows:
ΔΔΔΔ
ββββ
αααα
There are three rows. 4 Books in each row.
