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Vika [28.1K]
2 years ago
6

The regression equation, y = 6.5x + 20, is obtained after performing a regression analysis, where x represents the number of hou

rs studied for an exam and y represents the marks on the exam. Is the following statement true or false regarding the analysis above? (2 points)
If the regression square (R^ 2) is 0.01, the number of hours studied is very useful for predicting the exam marks.

50 POINTS HELP
Mathematics
2 answers:
Licemer1 [7]2 years ago
6 0

Answer:

x=10, true

Step-by-step explanation:

y=6.5x+20

true

erastovalidia [21]2 years ago
5 0

Answer:

The correct answer is True

Step-by-step explanation:

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A television is 28.5 inches wide and 16 inches long.
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Answer:

  33 in

Step-by-step explanation:

The Pythagorean theorem tells you ...

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mina [271]

Answer:

Z = 8 + 2x2 + 2y2

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Z = 8 + 2r2

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14 = 8 + 2r2

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So r goes from 0 to sqrt(3).

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2 years ago
Maria said that -4n + 3 +9n - 4 is equivalent to 4n. What error did maria likely make?
ivann1987 [24]
Maria combined all of the factors, which were not all like terms. She should’ve did -4n+9n and 3-4 to get 5n-1
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A circle has a circumference of \blue{12}12start color #6495ed, 12, end color #6495ed. It has an arc of length \dfrac{8}{5} 5 8
Thepotemich [5.8K]

Answer:

Therefore,

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Step-by-step explanation:

Given:

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Solution:

If "θ" the central angle is in degree then arc of length is given by

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Substituting the values we get

1.6 = \dfrac{\theta}{360}\times 12\\\\\theta = 48\°

Therefore,

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