Answer:
5.8
Step-by-step explanation:
To get the mean, add up all the numbers
9+4+8+3+5 = 29
Then divide by how many numbers there are (5)
29/5 =5.8
The mean is 5.8
Answer:
4xp-9
Step-by-step explanation:
The correct answer is C
Sigma Notation is when we take all of the whole numbers between the starting point (which can be found as the number under the sigma sign) and the end number (which can be found above the sigma sign). Therefore, we will add together all of the values of 3k + 2 for when k is equal to all of the numbers between 2 and 7. So, let's evaluate each one first.
When k = 2
3(2) + 2 = 8
When k = 3
3(3) + 2 = 11
When k = 4
3(4) + 2 = 14
When k = 5
3(5) + 2 = 17
When k = 6
3(6) + 2 = 20
When k = 7
3(7) + 2 = 23
So we know we have the following.
8 + 11 + 14 + 17 + 20 + 23
Now for the number after the comma, we are just looking for the answer of them all added together. So the final answer should be
8 + 11 + 14 + 17 + 20 + 23, 93
The functions are illustrations of composite functions.
<em>The soil temperature at 2:00pm is 67</em>
The given parameters are:
---- the function for sun intensity
-- the function for temperature
At 2:00pm, the value of h (number of hours) is:
![\mathbf{h = 2:00pm - 6:00am}](https://tex.z-dn.net/?f=%5Cmathbf%7Bh%20%3D%202%3A00pm%20-%206%3A00am%7D)
![\mathbf{h = 8}](https://tex.z-dn.net/?f=%5Cmathbf%7Bh%20%3D%208%7D)
Substitute 8 for h in
, to calculate the sun intensity
![\mathbf{I(8) =\frac{12 \times 8 - 8^2}{36}}](https://tex.z-dn.net/?f=%5Cmathbf%7BI%288%29%20%3D%5Cfrac%7B12%20%5Ctimes%208%20-%208%5E2%7D%7B36%7D%7D)
![\mathbf{I(8) =\frac{32}{36}}](https://tex.z-dn.net/?f=%5Cmathbf%7BI%288%29%20%3D%5Cfrac%7B32%7D%7B36%7D%7D)
![\mathbf{I(8) =\frac{8}{9}}](https://tex.z-dn.net/?f=%5Cmathbf%7BI%288%29%20%3D%5Cfrac%7B8%7D%7B9%7D%7D)
Substitute 8/9 for I in
, to calculate the temperature of the soil
![\mathbf{T(8/9) =\sqrt{5000 \times 8/9}}](https://tex.z-dn.net/?f=%5Cmathbf%7BT%288%2F9%29%20%3D%5Csqrt%7B5000%20%5Ctimes%208%2F9%7D%7D)
![\mathbf{T(8/9) =\sqrt{4444.44}}](https://tex.z-dn.net/?f=%5Cmathbf%7BT%288%2F9%29%20%3D%5Csqrt%7B4444.44%7D%7D)
![\mathbf{T(8/9) =66.67}](https://tex.z-dn.net/?f=%5Cmathbf%7BT%288%2F9%29%20%3D66.67%7D)
Approximate
![\mathbf{T(8/9) =67}](https://tex.z-dn.net/?f=%5Cmathbf%7BT%288%2F9%29%20%3D67%7D)
Hence, the soil temperature at 2:00pm is 67
Read more about composite functions at:
brainly.com/question/20379727