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posledela
2 years ago
14

Which expression is equivalent to (2x + 7x*) - (5x² - 4x)?

Mathematics
1 answer:
Westkost [7]2 years ago
3 0

Answer:

5x^2 + 13x

Step-by-step explanation:

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After extensive measurements of the time necessary to complete the first homework assignment, a teacher determines that there is
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Answer: -1.55

Step-by-step explanation:

Given : Mean : \mu=100

Standard deviation : \sigma=20

Sample size : n=60

Sample mean : \overline{x}=96

The test statistic for the population mean is given by :-

z=\dfrac{\overline{x}-\mu}{\dfrac{\sigma}{\sqrt{n}}}

\Rightarrow\ z=\dfrac{96-100}{\dfrac{20}{\sqrt{60}}}=-1.54919333848\approx-1.55

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3 years ago
A sequence of two transformations that can be used to show that polygon ABCDE is congruent to polygon GFJIH
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Answer:

Yes,they are congruent.

Step-by-step explanation:

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First Transformation:Now rotate the polygon FGHIJ by 90° about the axis parallel to x-axis and passinfg through the vertex I.You can observe that the sides are of same length AB=GF=2 units.

Second Transformation: Keeping the polygon ABCDE constant shift the centre of polygon FGHIJ to the centre of polygon ABCDE you will observe thta they exactly overlap on each other hence they are congruent with each other.

4 0
4 years ago
How do you know if a guy likes you especially if he's shy? fre.e points basically
kondor19780726 [428]

Answer:

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Step-by-step explanation:

6 0
3 years ago
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Use long division to find 5210 divided by 46
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52-46=6 drop down the 1 = 61- 46=15 drop down the 0 =150 46x3= 138 so 150-138= 12
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3 years ago
According to the rational root theorem, the
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Answer:

Step-by-step explanation:

Sorry this is a tough one and I don’t want to give you the wrong answers sorry again

6 0
3 years ago
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