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Taya2010 [7]
4 years ago
6

PLEASE HELP! 20 POINTS!An equation was created for the line of best fit from the actual enrollment data. It was used to predict

the dance studio enrollment values shown in the
table below:
Month
Enrollment
January February March April May June
Actual 500 400 550 550 750 400
Predicted 410 450 650 650 600 450
Residual 90
-50
-100 -100 150 -50
Analyze the data. Determine whether the equation that produced the predicted values represents a good line of best fit
O No, the equation is not a good fit because the sum of the residuals is a large number
No, the equation is not a good fit because the residuals are all far from zero.
Yes, the equation is a good fit because the residuals are not all far from zero.
Yes, the equation is a good fit because the sum of the residuals is a small number

Mathematics
2 answers:
lakkis [162]4 years ago
3 0

Answer:

B) No, the equation is not a good fit because the residuals are all far from zero.

Step-by-step explanation:

If you add the residuals, you get -60, which is small compared to the scale, but is still far from zero.

MAXImum [283]4 years ago
3 0

Answer:

The answer would be A

Step-by-step explanation:

I took the test :)

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3. Lonnie has a gift card worth $600 for a local entertainment store. Movies cost $20 each and newly released video games cost $
Mandarinka [93]

Answer:

8 movies and 6 video games

<em></em>

Step-by-step explanation:

Given

Gift\ Card = \$600

Movies =\ $20

Video\ Game = \$50

Minimum\ Items = 13

Required

Determine the items Lonnie can afford

To solve this question, we make use of trial by error method by taking the options one at a time:

Option 1: 6 movies and 4 video games

<em>This option can not be considered because the number of items is not up to the minimum Lonnte must purchase.</em>

<em />

Option 2: 14 movies and 7 video games

Cost = 14 * \$20 + 7 * \$50

Cost = \$280 + \$350

Cost = \$630

<em>This option can not be considered because the cost of purchase is greater than Lonnte's worth of Gift card.</em>

<em />

Option 3: 2 movies and 10 video games

<em>This option can not be considered because the number of items is not up to the minimum Lonnte must purchase.</em>

<em />

Option 4: 8 movies and 6 video games

Cost = 8 * \$20 + 6 * \$50

Cost = \$160 + \$300

Cost = \$460

Hence, the correct option is <em>8 movies and 6 video games </em>

4 0
3 years ago
14.4% of what number is 10.4
Helga [31]
First, convert "of" to x and put this info into an equation:

Let n represent the unknown number.  

14.4 % x n= 10.4
              n = 10.4 / 14.4%
              n = 72.22222
              n = ~72

Hope this helps!
8 0
4 years ago
A car uses a litre of petrol to travel 4km. How many litres will it use to travel 32 kilometres.
lesya [120]

Given that,

A car uses a litre of petrol to travel 4 km.

To find,

How many litres will it use to travel 32 kilometres.

Solution,

We have,

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Let it will use x litres to travel 32 km.

32 km = (32/4) litres

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3 years ago
Which function is equivalent to f(x) =2x² - 8x + 3?
Afina-wow [57]

Answer:

the answer would be the last one : g(x) = 2(x-2)² - 5

Step-by-step explanation:

I I highly recommend photomath for problems like these because you can easily type in this problem, get the answer, and it gives you a step-by-step process of how it got the answer, and it's free!

8 0
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andreev551 [17]

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Step-by-step explanation:

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