Answer:
A. Infinite solutions.
Step-by-step explanation:
3x - 2y = 12
6x - 4y = 24
The second equation can be formed by multiplying the first by 2. So if we graphed them they would give the same line. So the equations are identical and there are infinite solutions.
Answer:
for the second picture: the answer is 15 hours
Step-by-step explanation:
174 miles is for 3 hours, divide that by 3 to find how many miles per hour it is, 870 divided by 58 will give you the number of hours; 15. hope this helps!
By finding the roots of the polynomial, we conclude that the correct graph is the second one.
<h3>
Which is the graph of the polynomial?</h3>
Here we have the polynomial:
![f(x) = x^3 + x^2 - 2x](https://tex.z-dn.net/?f=f%28x%29%20%3D%20x%5E3%20%2B%20x%5E2%20-%202x)
To identify it, we need to find the roots, we can rewrite the equation as:
![f(x) = x*(x^2 + x - 2)](https://tex.z-dn.net/?f=f%28x%29%20%3D%20x%2A%28x%5E2%20%2B%20x%20-%202%29)
And we can rewrite the last part by using the Bhaskara's formula:
![x = \frac{-1 \pm \sqrt{1^2 + 4*2} }{2} \\\\x = (-1 \pm 3)/2](https://tex.z-dn.net/?f=x%20%3D%20%5Cfrac%7B-1%20%5Cpm%20%5Csqrt%7B1%5E2%20%2B%204%2A2%7D%20%7D%7B2%7D%20%5C%5C%5C%5Cx%20%3D%20%28-1%20%5Cpm%203%29%2F2)
Then the roots are:
x = -2
x = 1
Then we rewrite:
![f(x) = x*(x + 2)*(x - 1)](https://tex.z-dn.net/?f=f%28x%29%20%3D%20x%2A%28x%20%2B%202%29%2A%28x%20-%201%29)
So the roots are at x = 0, x = -2, and x = 1.
The graph with these roots is the second graph (top right).
If you want to learn more about polynomials:
brainly.com/question/4142886
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first of all the miniutes is not a linar function cause the first miniutes is 45 the 12 minuets later 57 but 11 minuets later 68 minuets so the minuets is not linear
what i did to find the credit was that i took 24.15-1.59 wich gave me 22.59 then i did 22.59-1.59 which gave me 21.03 if that is not correct