Answer:
<h2>|-4.5| = 4.5</h2>
Step-by-step explanation:
|a| = a for a ≥ 0
|a| = -a for a < 0
therefore
|-4.5| = -(-4.5) = 4.5
Answer:
All that you can!
Step-by-step explanation:
Try studying all the subjects that you can because it will give you more information. Do Biology before chemistry, and Pre-calculus (if your school has it).
Answer:
The system has one solution.
Step-by-step explanation:
We have two equations:
y = -2x - 4
y = 3x + 3
Equalling them:
y = y
-2x - 4 = 3x + 3
5x = -7

And

Replacing in the other equation we should get the same result.

So the system has one solution.