First, factor out 5:
5 (x² -x -20)
We need two numbers that add to -1 and multiply to -20. -5 and 4 satisfy this.
5(x-5)(x+4)
Answer:
Check attachment.
Step-by-step explanation:
I graphed it.
I think it the third one (sorry if am wrong)
The probability of selecting a black or blue pen is 4 out of 13. You calculate this by adding the amount of pens together and comparing it to the total amount of pens and pencils in the cup.
Answer:
Step-by-step explanation:
Here is the solution en degree.
x°=29.81689453°
You just have to modify the value in F1 .
