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Contact [7]
3 years ago
9

Write the given phrase as an algebraic expression. Use the variable x to represent each unknown number.

Mathematics
1 answer:
svet-max [94.6K]3 years ago
7 0

Answer:

x/3

Step-by-step explanation:

"A number" is an unknown number so represent it with x

"A number divided by 3" is x divided by 3

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Picture shows the questions
SpyIntel [72]

Answer:

121 cm

Step-by-step explanation:

12x13=156

7x5= - 35

________

121

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3 years ago
Which is true of a line?
slamgirl [31]

Answer:

A line is one-dimensional

Step-by-step explanation:

In its simplest form: a line describes one dimension, a plane describes two dimensions, and a cube describes three dimensions.

5 0
3 years ago
Read 2 more answers
i need help writing each decimal in word and expanded form.1)0.65  2)12.31  3)692.14  4)81.51  5)914.011  6)3,521.71  7)0.56  8)
DIA [1.3K]
1)<span>sixty-five hundredths
2)</span><span>twelve and thirty-one hundredths
3)</span><span>six hundred ninety-two and fourteen hundredths
4)</span><span>eighty-one and fifty-one hundredths
5)</span><span>nine hundred fourteen and eleven thousandths
6)</span>three thousand, five hundred twenty-one and <span>seventy-one hundredths
7) </span><span>fifty-six hundredths
8)</span>eight thousand, nine hundred forty-eight and <span>three hundredths</span>
8 0
3 years ago
Estimate the sum of 196 and 482
k0ka [10]
The answer to this problem would be 700. if you need the sum that isnt estimated, its 678.
4 0
3 years ago
The following table represents the annual sales of a bakery for the last 7 years since the grand opening
Effectus [21]

The table is a linear regression model, and the equation of the regression model is y = 0.24x + 0.77

<h3>The scatter plot that represents the table</h3>

See attachment for the required scatter plot

<h3>The best model of the scatter plot</h3>

From the attached scatter plot, we can see that the points are almost on a straight line

Hence, the best model that fits the scatter plot is a linear model

<h3>The equation of the regression model</h3>

Using a graphing calculator, we have the following calculation summary:

  • Sum of x = 28
  • Sum of y = 12.1
  • Mean X = 4
  • Mean Y = 1.7286
  • Sum of squares (SSX) = 28
  • Sum of products (SP) = 6.7
  • b = SP/SSX = 6.7/28 = 0.23929
  • a = MY - bMX = 1.73 - (0.24*4) = 0.77143

The regression equation is represented as:

y = bx + a

So, we have:

y = 0.23929x + 0.77143

Approximate

y = 0.24x + 0.77

Hence, the equation of the regression model is y = 0.24x + 0.77

Read more about regression models at:

brainly.com/question/13345245

#SPJ1

8 0
2 years ago
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