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3 years ago

6

What is the mean of the data set? {32, 33, 34, 34, 36, 38, 38, 38, 40, 42}

2 answers:

Hatshy [7]3 years ago

3 0

Mean is the average. To find the average of any set of numbers, you add up the numbers and divide that sum by the number of numbers you added. Here when you add the numbers together you get 365. Because there were 10 numbers there, divide 365 by 10 to get 36.5, or B

Jlenok [28]3 years ago

3 0

Step one. add them all together. (365)
Step two. Divide 365 by the number of numbers. (36.5)

Hope this helps! :)

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I need help figuring out the coordinate planes of these points ASAP.

d1i1m1o1n [39]

<u>Given</u>:

The vertices of the quadrilateral WXYZ are W(2,4), X(4,2), Y(2,1) and Z(0,2)

The graph is rotated 90° about the origin.

We need to determine the coordinates of the quadrilateral W'X'Y'Z'

<u>Coordinates of the quadrilateral W'X'Y'Z':</u>

The rule to transform the coordinates 90° counter clockwise about the origin is given by

$(x, y) \implies(-y, x)$

Let us substitute the coordinates.

The coordinates of W' is given by

$W(2,4)\implies W'(-4,2)$

The coordinates of X' is given by

$X(4,2) \implies X'(-2,4)$

The coordinates of Y' is given by

$Y(2,1) \implies Y'(-1,2)$

The coordinates of Z' is given by

$Z(0,2) \implies Z'(-2,0)$

Therefore, the coordinates of the vertices W', X', Y' and Z' are (-4,2), (-2,4), (-1,2) and (-2,0) respectively.

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3 years ago

Fill in the boxes plz. Thanks

sesenic [268]

Answer:

$z = \frac{5}{8} \\$

Step-by-step explanation:

$9z + (7z-4)=6 \\ 9z + 7z - 4 = 6 \\ 16z = 6 + 4 \\ 16z = 10 \\ z = \frac{10}{16} \\ \\ z = \frac{5}{8}$

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3 years ago

May someone please help me out on this question

NISA [10]

Answer:

A

Step-by-step explanation:

It's hard to see but when x is 6, y is 4.5. Just plug that into each equation and see which one is correct.

$x^{2} =8y\\x=6;y=4.5\\6^{2} =8(4.5)\\36=36$

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3 years ago

80% more then $20.00

ElenaW [278]

Answer

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Step-by-step explanation:

You multiply 0.8 by 20 since 0.8 is also 80% and you get 16. Since you want 80% more than 20 you add together to get $36. Hope it helped!

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Lena [83]

The answer is the second sentence

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2 years ago