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Liula [17]
3 years ago
11

Solve y=3x+4 and y=-2x-6 using substitution method

Mathematics
1 answer:
Ivan3 years ago
7 0
3x + 4 = -2x - 6
5x = -6 - 4
x = -2

y = (3*-2) + 4
y = -6 + 4
y = -2
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K-3k²-3k+2k²<br><br><br>what is the answer<br>please help me​
laiz [17]

Answer:

Assuming you want to simplify the expression, it can be shortened to:

-k² - 2k

Step-by-step explanation:

What you need to do here is called grouping like terms.  Like terms can be described as terms that have the same factors.  In this case, the factors we're looking at are k and k²:

Given:

k - 3k² -3k + 2k²

We'll rearrange to group like expressions:

= -3k² + 2k² + k -3k

Pull out common factors:

= (-3 + 2)k² + (1 - 3)k

And simplify:

= -k² - 2k

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3 years ago
The difference of the range and the interquartile range of the data set represented by the box plot is .
Ivahew [28]
When presented with a box plot, it is better to identify the 5 numbers that are important in the box plot.

5 number summary of the boxplot.
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2) 1st quartile - 21
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Interquartile range is the difference of the 3rd quartile from the 1st quartile.

Range: 34 - 16 = 18
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6 0
3 years ago
Read 2 more answers
HELPPPPP meeeee plsss
Karo-lina-s [1.5K]

Answer:

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Step-by-step explanation:

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4 0
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Step-by-step explanation:

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6 0
3 years ago
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