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rosie20052019
rosie20052019
05.01.2021 • 
Mathematics

Hours spent in sun Concentration of vitamin D3 (in ng per ml) 39
5
48
5
42
6
49
7
57
The table shows number of hours spent in the sun weekly, x, and the the concentration of vitamin D3 in person's blood (in nanograms
per milliliter), y
Which statements are correct?
A)
1 hour of sunlight weekly yields about 29 ng/ml of D3.
B)
2 hour of sunlight weekly yields about 36 ng/ml of D3.
)
9 hours of sunlight weekly yields about 68 ng/ml of D3.
D)
The function y = 4.32x + 24.55 can be used to model the data.
E)
The data shows the dependence of D3 concentration on hours in the sun.

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