1. 12a²b² + -7a²b² + 9a²b²
= 14a²b² (the terms a²b² are like terms so don't look at them, just add 12 + (-7) + 9.
= 14 (ab)² (you can write like this too because both a & b are squared).
2. y² - (-5y²)
= 6y² (subtract -5 from 1, y² is the like term).
Answer:
The answer is
Step-by-step explanation:
60° is 4x 15° because:
I would first divide by 2:
Then divide by 2 again:
That leaves you with a 15° angle.
Answer:
B
Step-by-step explanation:
I have a really good feeling its B and i tried working it out
Answer:
There are about five things graphs need.
- <em>text</em>
- <em>grid lines</em>
- <em>visual structures</em>
- <em>scales and tick marks</em>
- <em>axes and backgroud</em>
Explanation:
- The text is essential because it can directing the viewer on what the graph is talking about.
- A grid line is useful to help you compare, notice, and study patterns on a graph more precisely.
- Visual structures is very important bc it represents data and values in a graph.
- Scales and tick marks are essential bc it can point out where you are on the graph.
- Axis is the definition of graph bc it determines whether the graph has a verticle axis or horizontal axis.