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shutvik [7]
3 years ago
10

George recorded the temperature of a liquid during science class.

Mathematics
1 answer:
Natali [406]3 years ago
7 0

Answer:

Step-by-step explanation:

The best measure of the center for this data is the __Median___

The value of this measure of center is _42_

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Which shows the correct substitution of the values a, b, and c from the equation –2 = –x + x2 – 4 into the quadratic formula?
ASHA 777 [7]

The <em><u>correct answer</u></em> is:

x=\frac{1\pm \sqrt{(-1)^2-4(1)(-2)}}{2(1)}

Explanation:

The Quadratic Formula is

x=\frac{-b\pm \sqrt{b^2-4ac}}{2a},

where a, b and c are the coefficients of a quadratic equation written in standard form, or 0=ax²+bx+c.

This means that first, we need to make our equation equal 0.

We have

-2 = -x + x² - 4

To make this equal 0, we must cancel the -2.  We do this by adding 2:

-2+2 = -x + x² - 4 + 2

0 = -x + x² - 2

Now we write this in standard form.  This means the x² term must come first, then the x term, then the constant:

0 = x²-x-2

This makes a = 1, b = -1 and c = -2.  We then plug this into the quadratic formula.

8 0
3 years ago
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Lorico [155]

Answer:

Step-by-step explanation:

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Please help !!!!!!!!!! Will mark Brianliest answer !!!!!!!
ivanzaharov [21]
The answer is most likely (c).
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A person standing 20 feet from a streetlight casts a shadow as shown. How many times taller is the streetlight than the person?
Xelga [282]

Answer:

2 times taller.

Step-by-step explanation

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Rewrite the following in the form log(c). log(4) - log(2)
Elis [28]

Answer:

log(2)

Step-by-step explanation:

log(4) − log(2)

log(4/2)

log(2)

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3 years ago
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