f(x) is the same as y, so we can say y = f(x)
Writing f(x) < 0 means we want to find when y < 0.
Visually, we are looking at the graph when the curve is below the horizontal x axis.
This is the portion in red that I have marked in the diagram (see attached image below). I apologize for the numbers being blurry.
The left red portion is from negative infinity to -3. In terms of a compound inequality we write 
which in interval notation is 
. The curved parenthesis tells the reader to exclude both endpoints.
The right red portion is from x = -1.1 to x = 0.9, excluding both endpoints. So we say 
which becomes the interval notation 
. This is not ordered pair notation even though it looks identical to it.
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<h3>Answer in interval notation:
</h3>
The "U" means "set union" which glues together the two separate intervals. Basically it's saying "x is either in the interval (-infinity, -3) or it is in the interval (-1.1, 0.9)"
Same side angles together form angle with measure 180^{0}. Let x be a measure of smaller angle, then x+20^{0} is measure of bigger angle.
x+x+20^{0}=180^{0}
2x=160^{0}
x=80^{0}.
So measure of smaller angle is 80^{0} and measure of bigger angle is x+20^{0}=80^{0}+20^{0}=100^{0}.
Answer:
8x+2y+2
Step-by-step explanation:
First, write it out as it's given:
3y+2+3x-y+5x
Then, combine the x-terms first:
3y+2-y+8x
Next, combine the y-terms:
2+2y+8x
3/3 of 12 is 12(?)
1/4 of 20 is 5
3/4 of 20 is 15
2/4 of 20 is 10
4/4 of 20 is 20
1/5 of 35 is 7
3/5 of 35 is 21
5/5 of 31 is 31(?)
2/5 of 35 is 14
4/5 of 35 is 28
annnd....
6/5 of 35 is 42
I hope these are right and are beneficial to your work
No because 67.20 rounded to the nearest tenth is 67.2
