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saul85 [17]
3 years ago
11

Simplify the expression 4x+9y+3(x+y) help needed

Mathematics
1 answer:
Gwar [14]3 years ago
7 0
The answer is 7x add 12y

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Find the mean, median, and mode of the data set. Round to the nearest tenth. 15, 13, 9, 9, 7, 1, 11, 10, 13, 1, 13 mean = 8.5, m
jasenka [17]

Answer:

Mean = 9.3

Median = 10

Mode = 13

Step-by-step explanation:

To get the mean, you would have to add up all of the numbers (102), then divide how many numbers you have with the numbers added up (9.3). To get the median, you would have to put all of the numbers that you have, in order, from least to greatest and cross off each number, one from each side before getting to the number in the middle (unless if you have an even number; works better with odd numbers, which is easier). To get the mode, you would need to find out which number appears the most, and, if there is more than one, you can put the numbers down. Hope this helps.

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3 years ago
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Answer:

Yea

Step-by-step explanation:

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5 0
4 years ago
Whats the product of (-3x+2y)(4x-y)
oee [108]

Answer:

-12x^2 + 11xy - 2y^2

Step-by-step explanation:

5 0
4 years ago
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Can someone help, I have a F in math so this is a struggle for me. I also need all work if you can give it to me. Thank you in a
andrey2020 [161]

ok so to start combine like terms in the problems meaning you combine the numbers that have the same variable like 7x and 3x etc.

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The point C(2,3) is translated along a vector that is parallel to the line y=3x-2. The translation vector has magnitude square r
qaws [65]

Step-by-step explanation:

The translation vector v can be resolved into its x and y components, where x² + y² = 10 (Pythagoras' Theorem) and y = 3x

(parallel to y = 3x - 2, slope = 3).

We have x² + (3x)² = 10,

=> x² + 9x² = 10, 10x² = 10, x = 1 or x = -1.

When x = 1, y = 3. When x = -1, y = -3.

Therefore 2 possible translation vectors

are (1, 3) or (-1, -3).

First new C' = (2 + (1), 3 + (3)) = (3, 6).

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