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yKpoI14uk [10]
3 years ago
14

15x – 2(4x + 1) = -9

Mathematics
2 answers:
Oksi-84 [34.3K]3 years ago
6 0

Answer:

-1

Step-by-step explanation:

15x-8x-2=-9

Or, 7x=-9+2

Or, 7x=-7

Or, x=-7/7

Or, x =-1

Sedaia [141]3 years ago
4 0
15x-2(4x+1)=-9
15x-8x-2=-9
7x-2=-9
7x=-7
X=-1
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If the diameter of a circle is 9 cm, then its circumference is 56.52 cm.<br><br> True or false?
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he table shows the mean number of basketball goals made by four random samples of players from the school team during this year’
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The valid prediction for the mean of the population possible using these samples is C. Yes, the variation of the sample means is small

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It should be noted that a sample mean is an average of a set of data . Also, the sample mean can be used to calculate the standard deviation, central tendency, and the variance of a data set.

The sample mean can be applied to a variety of uses, including calculating population averages.

Here, the sample variance is a measure of the degree to which the numbers in a list are spread out. Here, the numbers given are close to each other.

If the numbers in a list are all close to the expected values, the variance will be small and if they are far away, the variance will be large.

Therefore, the correct option is C.

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4 0
2 years ago
A circular window is drawn on architectural plans where each unit is a foot on a coordinate grid. the window is modeled by the e
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The equation of a circle is given by the formula,

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6 0
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