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.

828. all there is to it!

here, if you ever need with rounding (or other forms of arithmetic/math) again, use this:

thats the rounding one, but if you just click the top left, it shows you all the calculators you may need!

15%

step-by-step explanation:

use the table and count the number of guesses that has two correct answers.

the following are two correct answers

10010, 01100, 11000

a total of 3 numbers having 2 correct guesses out of 20 questions.

probability of getting 2 correct guesses = the number of questions getting 2 correct answers / total number of questions.

= 3/20

to convert it into percent multiply by 100, we get

= 3/20 * 100

= 15%

the answer is 15%

you.

126.66 m²

step-by-step explanation:

the pertinent area formula is a = πr², where r is the radius.

here, a = π(6.35 m)² = 40.32π, or approximately 126.66 m²

so then what are you asking?

step-by-step explanation: