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ruslelena [56]
3 years ago
14

Need help please, pt 4 Thanks!

Mathematics
1 answer:
777dan777 [17]3 years ago
4 0
Hello,
Please, see the attached files.
Thanks.

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If f(x) = -2x + 5, find x when f(x)=17..
VARVARA [1.3K]

Answer:

x= -6

Step-by-step explanation:

17=-2x+5

17-5=-2x+5-5

12= -2x then divided both side by -2

-6=x

4 0
3 years ago
Can someone help is due today
skelet666 [1.2K]

Answer:

sorry letters are to small but if you dont know just guess then but then try to get like good scores on at least 3 homeworks

7 0
3 years ago
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What single transformation can take you from A (3, 1) to A" (-7, 1) in one move?
Arisa [49]

Answer: A reflection (Across the y-axis)

Step-by-step explanation:

Transformation possiblitites:

Translation: After plotting the points you gave I came to the conclusion that a translation could not be the right transformation due to the fact that the point would move away the same units on a graph as the original point.

Rotation: The new point doesn't seem when graphed to have rotated, as it remained across from the orignial point on the graph.

Dilation: The new point if dilated wouldn't be in close proximity with the original point.

3 0
3 years ago
Find the standard deviation of 21, 31, 26, 24, 28, 26
Vesnalui [34]

Given the dataset

x = \{21,\ 31,\ 26,\ 24,\ 28,\ 26\}

We start by computing the average:

\overline{x} = \dfrac{21+31+26+24+28+26}{6}=\dfrac{156}{6}=26

We compute the difference bewteen each element and the average:

x-\overline{x} = \{-6,\ 5,\ 0,\ -2,\ 2,\ 0\}

We square those differences:

(x-\overline{x})^2 = \{36,\ 25,\ 0,\ 4,\ 4,\ 0\}

And take the average of those squared differences: we sum them

\displaystyle \sum_{i=1}^n (x-\overline{x})^2=36+25+4+4+0+0=69

And we divide by the number of elements:

\displaystyle \sigma^2=\dfrac{\sum_{i=1}^n (x-\overline{x})^2}{n} = \dfrac{69}{6} = 11.5

Finally, we take the square root of this quantity and we have the standard deviation:

\displaystyle\sigma = \sqrt{\dfrac{\sum_{i=1}^n (x-\overline{x})^2}{n}} = \sqrt{11.5}\approx 3.39

8 0
3 years ago
There are 10 circles and 6 squares. What is the simplest ratio of squares to total<br> shapes?
DENIUS [597]

Answer:

The simplest ratio would be 5:3

Step-by-step explanation:

Both 10 and 6 can be divided by 2.

They turn into 5 and 3.

Since you can't make 5 and 3 any smaller, this will be the answer.

5:3

Hope this helped! :D

4 0
2 years ago
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