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Vlad [161]
2 years ago
13

A model is an estimate or approximation of a data set. In the real world, there are too many variables to know exactly what will

happen. However, if a model is a good fit, then it can be used to make predictions about what will happen. With a useful model, a predicted value should be a good estimate of an observed value. What did you include in your response? Check all that apply. A model is an estimate of a data set. A useful model can be used to make predictions. Predictions should be a good estimate of what will actually happen.
Mathematics
1 answer:
Ivan2 years ago
6 0

Answer:

A model is an estimate of a data set.

A useful model can be used to make predictions.

Step-by-step explanation:

There are various models used in mathematics which are used to predict variables. The regression model is used to predict the relation between two variables. There are various other models which help to predict the future events and outcome of these events.

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Oduvanchick [21]

The barista used 16 cups of milk. I know, I know, I'm super cool, just rate me 4 stars or better, its really the only way you can repay the massive debt you owe me.

7 0
3 years ago
A rally car race course covers 515.97 miles. The winning car completed the course in 6.5 hours. What was the average speed of th
evablogger [386]

Answer:

79.38 miles per hour

Step-by-step explanation:

average speed =  miles covered / hours

= 515.97 / 6.5

=  79.38

4 0
3 years ago
Read 2 more answers
Kevin is $25 in his checking account with Kevin has 2.20 less than 4 times of the amount that Molly has in her account what is t
Nikolay [14]

Answer:

$6.8

Step-by-step explanation:

suppose Molly's account balance = X

25 + 2.2 = X * 4

27.2 = X*4

27.2/4 = X = 6.8

8 0
3 years ago
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- Let y represent the width of a rectangle and let x represent the rectangle's lengu.
valentina_108 [34]

Answer:

Length: 21 cm and Width:  6cm

Step-by-step explanation:

Let y be the width and x length of the rectangle. We know:

x = 4y -3 -------- eq. 1

54 = 2x + 2y    (Perimeter of the rectangle) ------- eq.  2

Substitute equation 1 in equation 2:

54 = 2(4y-3) + 2y\\54 = 8y - 6 + 2y\\54 + 6 = 8y + 2y\\60 = 10 y\\\\\frac{60}{10}= y\\y = 6

Using the value of y, we find x.

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4 0
3 years ago
Can anyone help me with this?<br>complete the table of values of <br>f(x) = 3×​
n200080 [17]

Answer:

See sample table below.

Step-by-step explanation:

The function is given as :

f(x) = 3ˣ

A table of values can be formed as ;

x                <u>calculations</u>           f(x)

-4               3⁻⁴                          0.0123

-3               3⁻³                          0.0370

-2               3⁻²                          0.1111

-1                3⁻¹                           0.3333

0                 3⁰                            1.000

1                  3¹                             3.000

2                 3²                             9.000

3                 3³                              27.00

4                 3⁴                              81.00

8 0
3 years ago
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