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2 years ago

What is the value of x in the figure? A. 10 B. 6 C. 15 D. 12

Mathematics

1 answer:

Anuta_ua [19.1K]2 years ago

3 0

Answer:

Step-by-step explanation:

You need to set up a proportion.

(21 - 15) / 21 = 4/(x + 4)

6 / 21 = 4/(x + 4)

2/7 = 4/(x + 4)

2(x + 4) = 7*4

2x + 8 = 28

2x + 8-8= 28 - 8

2x = 20

x = 20/2

x = 10

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If a given data point is (1,4) and the line of best fit is y = 1.5x + 3.25, what's the residual value?

Svetlanka [38]

Answer:

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we know that

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