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igomit [66]
3 years ago
10

which of the following equations is the equation of a suitable line of best fit for the data given below {(45,18), (62,13), (72,

11), (55,15), (38,21), (26,31), (92,9), (64,13), (29,28), (33,25), (49,17)} a. y=3x+35 b. y=-10x+35 c. y=-3/10x-35 d. y=-3/10x+35
Mathematics
1 answer:
Nuetrik [128]3 years ago
5 0

Sort the data by x:

(26,31),(29,28), (33,25), (38,21),(45,18),(49,17),(55,15), (62,13),(64,13), (72,11), (92,9)}

That look like an obvious decreasing trend. From the first and last point we get a slope of (9-31)/(92-26) = -1/3 and a y intercept of 31 - (-1/3)26 = 39.67.

That's pretty close to Choice d y=-3/10x+35

Answer: d

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Sveta_85 [38]

Answer:

Money spend on drink  = £ 609

Step-by-step explanation:

Food : drink = 29 : 3

Money spend on food = 29x

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32x = £6496

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Step-by-step explanation:

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3 years ago
Find the point on the plane 2x+5y+z=8 that is nearest to​ (2,0,1).
Svetach [21]

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(2.2, 0.5, 1.1)

Step-by-step explanation:

The parametric equation of the line normal to the plane and through point (2, 0, 1) can be written ...

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For this value of t, L is ...

... (2, 0, 1) + 0.1(2, 5, 1) = (2.2, 0.5, 1.1)

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liubo4ka [24]

Answer:

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Step-by-step explanation:

You can use the equations to help plus i got it right

Have a Lovely Day!

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