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mestny [16]
3 years ago
5

Mary’s mother invested in an internet stock. The price went up and down over the next few months: +32, –10, +13, –25. a. At the

end of the time period, had the price of the stock finished higher or lower than it started? b. How much higher or lower?
Mathematics
1 answer:
maxonik [38]3 years ago
5 0

Answer:

It finished higher, 10 points higher.

Step-by-step explanation:

you add all of the numbers together, if it is equal to zero then it is even anything higher is higher and anything lower is lower.

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miskamm [114]

Step-by-step explanation:

Given that,

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2x(x + 1.5) = -1

We need to solve the quadratic equation. Firstly we need to simplify the above equation to form it as ax^2+bx+c=0.

So,

2x^2+3x=-1\\\\2x^2+3x+1=0

Here, a = 2, b = 3 and c = 1

The roots of the given equation can be given by :

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Putting all the values we get :

x=\dfrac{-b\pm \sqrt{b^2+4ac} }{2a}, \dfrac{-b\pm \sqrt{b^2-4ac} }{2a}\\\\x=\dfrac{-3\pm \sqrt{3^2+4(2)(1)} }{2(2)}, \dfrac{-3\pm \sqrt{3^2-4(2)(1)} }{2(2)}\\\\x=\dfrac{-3+1}{4}, \dfrac{-3-1}{4}\\\\x=-\dfrac{1}{2}, -1

So, the roots of the given equation is -1/2 and -1.

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4 years ago
Can y’all help me on question 20?!
denis23 [38]

Answer:

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8 0
3 years ago
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Step-by-step explanation:


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This is the last task​
Black_prince [1.1K]

The answer is attached.

6 0
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