Discriminant b^2-4ac = (-9)^2 - 4*2*9 = 9
so there are 2 roots
because of the -9x and 9 they will both be positive
Answer:
x×y=<4
Step-by-step explanation:
let x and y d equal to 2
2×2=4
let x x is one and y is 3
1×3=3
Set up a system of equations and say green route is x and blue route is y
This will give you
Monday 6x + 5y= 52
Tuesday 12x + 13y = 119
Solve by multiplying the top equation by two to get
12x + 10y= 104
Since you have 12x in both equations, these cancel out when you subtract the bottom from the top. This leaves you with
-3y=-15
Y=5
The blue route is 5 miles, but they want to know the green route. Fill in the y value in either one of your equations. Let’s use the one from Tuesday
12x + 13 (5) = 119
12x= 54
X= 4.5
This means that the answer is 4.5 miles
Answer:
x=80
Step-by-step explanation:
39₂+b₂=89₂
1521+b₂=7921
7921-1521=6400
=80
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The answer to your question would be 21b + 35x
(please give thanks)