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Reptile [31]
2 years ago
6

One in _____middle school students has used cigarettes in the past 30 days and one in __________ high school students has used c

igarettes in the past 30 days.
Medicine
2 answers:
zhuklara [117]2 years ago
4 0

Answer:

One in 14 middle school students has used cigarettes in the past 30 days and one in 4 high school students has used cigarettes in the past 30 days.

Explanation:

Source: CDC 2018

FrozenT [24]2 years ago
4 0
Your answer would me one is 14 middle schools and one in 4 high schools:)
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Identify a fluorescence-activate cell-sorting (FACs) instrument and its functions.
Bezzdna [24]

Answer: Measures the antigen levels on the cell surface

Explanation: Fluorescence-Activated Cell Sorting. Fluorescence-activated cell sorting (FACS) measures the antigen levels on the cell surface quantitatively. Cells are dyed with a fluorescent antibody, then placed in a stream of liquid which passes the focus of a laser, and each cell emits light.

8 0
3 years ago
Question 11 a and b.
ladessa [460]

Answer:

a) 5040ways

b) 576ways

Explanation:

11a) There are 3 different bundles of reading materials each comprising of 4 comic and 3 magazines. The magazines and comics are placed together to form a bundle.

We are to determine the number of ways we can arrange these items in each of the bundle if there are no restrictions.

When there are no restrictions in combining items together, we can place the items in any positions.

Number of comics in one bundle = 4

Number of magazines in one bundle = 3

Total number of books = 4+3 = 7

For 7 reading materials in each bundle, there are 7 places we could pick for the first reading material, 6 for the next reading material, followed by 5, etc. Therefore, we have 7! total ways of arrangement.

7! = 7×6×5×4×3×2×1 = 5040ways

The number of ways we can arrange the items in one bundle if there are no restrictions on individual items to be placed = 5040ways

11b) We are to determine the number of permutations if the order of comic books in each bundle does not change.

For the order of comic books in each bundle not to change and they are arranged in one pile, it means all the comics are placed together.

The number of ways we can arrange 4 comic books placed together = 4!

4! = 4×3×2×1 = 24ways

Let the 4comics represent one entity = 1

The remaining reading materials = 7-4 = 3

The total number of reading material for the 1 entity and the remaining 3 = 3+1 = 4

The number of ways we can arrange these 1 entity and the remaining 3 books = 4!

4! = 4×3×2×1 = 24ways

The number of permutations if the order of comic books in each bundle does not change = 24×24 = 576ways

8 0
3 years ago
In 1895, Wilhelm Roentgen discovered x-rays. This was an important discovery for the field of diagnostic medicine. What medical
Alexeev081 [22]
All of above, the most was cardio
8 1
3 years ago
Read 2 more answers
1. Explain how your scores compare to the Healthy Fitness Zone Standards. Based on this comparison, what should you do next
ivann1987 [24]

Answer:

My score are good.

Explanation:

My score are good because there is little difference and more similarities between my score and Healthy Fitness Zone Standards. Based on this comparison, we should follow the next level fitness due to promotion to the next level of fitness. If my score in every level is satisfactory so I will completed all the levels in a short period of time otherwise it takes too much time. I need more hard work to do it earlier.

4 0
3 years ago
Simpson's diversity index formula
horrorfan [7]
Simpson's Diversity Index is a measure of diversity. In ecology, it is often used to quantify the biodiversity of a habitat. It takes into account the number of species present, as well as the abundance of each species.

In the Simpson index, p is the proportion (n/N) of individuals of one particular species found (n) divided by the total number of individuals found (N), Σ is still the sum of the calculations, and s is the number of species.
4 0
3 years ago
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