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Elenna [48]
3 years ago
14

Simplify 2х + х. О 2х2 О 3х O3x 2

Mathematics
2 answers:
nikdorinn [45]3 years ago
8 0

Answer:

3x

Step-by-step explanation:

2x  + x

3x

Nadya [2.5K]3 years ago
5 0
The answer would be 3x
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Sameena buys x packets of batteries and y boxes of batteries write down and expression, in terms of x and y, for the total numbe
shusha [124]

Answer:

4x plus 20y

Step-by-step explanation:

4 times x  plus 20xy

4x plus 20y

3 0
2 years ago
Tony has a bag containing five balls: one red, one blue, one
Ratling [72]

Answer:

20 percent

Step-by-step explanation:

100(%) (all 5 balls) ÷ 5 = 20(%)

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3 years ago
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The following data pairs represent the average temperature x (in degrees Fahrenheit) and electricity
elena55 [62]

Answer:

<u>The correct answer is C. r = 0 because is most likely the closest to the correlation coefficient of the data.</u>

Step-by-step explanation:

Using Excel, we captured the data provided for the 12 different homes for calculating the correlation coefficient manually, this way:

n = 12

∑x = 904

∑y = 2,169

∑xy = 167,532

∑x² = 69,552

∑y² = 404,615

r =  [n *∑xy  - (∑x * ∑y)]/[√(n * ∑x² - (∑x)²) * (n * ∑y²  - (∑y)²)]

Replacing with the real values, we have:

r = [12 * 167,532  - (904 * 2,169)]/[√(12 * 69,552 - 904²) * (12 * 404,615  - 2,169²)]

r = [2'010,384  -1'960,776]/[√(834,624 - 817,216) * (4'855,380  - 4'704,561]

r = 49,608/√17,408 * 150,819

r = 49,608/ 51'239.215

r = 0.00097

<u>The correct answer is C. r = 0 because is most likely the closest to the correlation coefficient of the data.</u>

4 0
2 years ago
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kenny6666 [7]
Solving Two- Step Equations:
First you have to add or subtract the number without the variable, x, then divide with the variable with x in it.

1.) -2 - 2=26
Answer: x= -14
Try some on your own, if you still need help comment back!

5 0
3 years ago
If you travel 550 miles in 8 hours, what is your unit rate?​
Rama09 [41]

Answer:

68.785 miles per hour

Step-by-step explanation:

make one of the numbers 0 and divide the other one by that number

8 0
3 years ago
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