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Ymorist [56]
3 years ago
8

How would i answer this? Please keep it simple

Mathematics
1 answer:
AveGali [126]3 years ago
6 0

Answer:

32

Step-by-step explanation:

8/100 x 4

=

32/400

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At the market, 6 batteries cost $10.38. How much do 8 batteries cost?
Dominik [7]
To get the answer you should solve the following equation:
\frac{6}{8}=\frac{10.38}{x}
\frac{3}{4}=\frac{10.38}{x}
x=\frac{4*10.38}{3}=\frac{41.52}{3}=13.84

So, the 8 batteries cost $13.84.
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Alex777 [14]

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Dilation by a scale factor of 3 followed by reflection about the y-axis.

Step-by-step explanation:

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Step-by-step explanation:

5 0
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The graph of f(x) and g(x)=f(x) + k is shown on the coordinate plane.<br> k = _ ?
Alenkasestr [34]

Answer:

k = 10

Step-by-step explanation:

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6 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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