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2 years ago

8

A measurement of the circumference of a disk has an uncertainty of 1 . 5 mm. How many measurements must be made so that the diam

eter can be estimated with an uncertainty of only 0 . 5 mm

1 answer:

Naya [18.7K]2 years ago

3 0

Answer:

How many measurements must be made = 9

Step-by-step explanation:

The steps are as shown in the attachment.

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How do I solve this?

aksik [14]

Multiply the first equation by 2
4x-6y=16

Then add the equations to eliminate x
4x-6y=16
-4x+5y=-10

-y=6
y-=6

Plug the y value in
2x-3(-6)=8
2x+18=8
2x=-10
x=-5

Final answer: (-5,-6)

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Step-by-step explanation:

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If the points are on the same line the the points are collinear. This is True.

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