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iogann1982 [59]
3 years ago
9

I need help!!! :))))

Mathematics
2 answers:
timurjin [86]3 years ago
6 0

Answer:

c

Step-by-step explanation:

aleksandr82 [10.1K]3 years ago
3 0

Answer:

420-20w = 240

Step-by-step explanation:

She starts with $420 and is taking out $20 a week so in the equation the 20 has to be negative because she is withdrawing instead of adding.

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Delvig [45]

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Step-by-step explanation:

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3 years ago
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Mamont248 [21]
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3 years ago
I dont understand this, can i get some help please
Ray Of Light [21]

When we want to find the roots of a one-variable function, we look for where its graph intersects the x-axis. In this case, the graph intersects the x-axis at x=1.

The vertex of a parabola is the highest or lowest point on it, depending on whether the leading coefficient of the quadratic function is negative or positive. In this case, we see that the lowest point is (1,0).

For the y-intercept, just look for where the graph intersects the y-axis; in this case, that point is (0,1).

Using this information, the vertex-form equation of the parabola is y=1\cdot(x-1)^2+0, so the factors are two copies of x-1. In this case, the value of a in the equation y=a(x-h)^2+k was conveniently 1; if that's not the case, you'll want to plug in x=0 to solve for the value of a that gives the correct y-intercept.

Does that help clear things up?

3 0
3 years ago
Can u help with this plzz
Rama09 [41]

Answer:

Umm, it's just a black screen

Step-by-step explanation:

My only answer is that you turn a light on or something.Where's the question?

8 0
2 years ago
Find the slope of the line below using rise/run.<br>​
QveST [7]

Answer:

A, 2/3

Step-by-step explanation:

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6 0
3 years ago
Read 2 more answers
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