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Ghella [55]
3 years ago
5

Choose the correct vortex for the following quadratic function ​

Mathematics
1 answer:
Black_prince [1.1K]3 years ago
4 0

Answer:

A

Step-by-step explanation:

f(x)=x^2-4x+3

x coordinate: -b/2a

-(-4)/2(1)=4/2=2

and to find the y coordinate just plug in the value of -b/2a for x and solve for y

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Bad Investment After Mrs. Fisher lost 9% of her investment, she had $22,750. What was Mrs. Fisher's original investment?​
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Answer:

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Step-by-step explanation:

Given that,

The lost percentage = 9%

Amount she had = $22,750

We need to find Mrs. Fisher's original investment.

As she had lost 9%, it means she will remain with 91% of her investment. Let the original investment is x.

So,

91\%\ of \ x=22,750\\\\\dfrac{91}{100}x=22,750\\\\x=\dfrac{22,750\times 100}{91}\\\\x=\$25000

So, her original investment is equal to $25000.

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Step-by-step explanation:

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In polar coordinates the positive x axis is called?
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