Answer:
-3
Step-by-step explanation:
as shown in the picture
Answer:
10 for 9$
Step-by-step explanation:
because say the each ball cpsts a dollar, and the total for 3 would be 3$ for the cost of 10 would be 9 so its less but more mo ey spent
Assuming you know the quadratic formula:

You can fill in a, b and c in this and get:

Now, let's create a shorthand
to make the writing easier:

But since one root is three times the other root (but we don't know which one), we also know that:
or 
If you solve this, you get:
or 
However, since q is a square root, it must be postive.
So we know that:

From this you find that

So p = 3/2
The roots are x=1/2 and x=3/2.
If you're traveling at 54 mph and it takes 15 hours to his destination, 15×54 gives you 810miles
Answer: y=-2x+3
Step-by-step explanation:
M= 1--2/-1-5
Y-1=-2(x-1)
-2x+2+1
Y=-2x+3