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Naddik [55]
3 years ago
5

A psychologist designs an 8-item pain survey asking athletes to identify their level of pain after a football injury. She is

Mathematics
1 answer:
Maslowich3 years ago
4 0

Answer:

<h3>There are 8! ways to answer.</h3>

Step-by-step explanation:

We know that the survey has 8 items, that means we can use the factorial number, because it's a simple permutation.

Using a factorial we have

n! where n=8, which is the total number of items.

8! = 8\times 7 \times 6 \times 5 \times 4 \times 3 \times 2 \times 1 = 40,320

Therefore, there are 40,320 ways to answer the survey, or 8! ways.

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Two times the sum of a number and 6,decreased by 11, is the same as six times the difference of the number and 2 , increased by
Oksi-84 [34.3K]

2(x+6)-11=6(x/2)+16

This is the equation, when not simplified

7 0
4 years ago
A base angle of an isosceles triangle measures 30, and the length of one of the legs is 12. What is the length of the altitude d
AfilCa [17]

Answer: 6

Step-by-step explanation:

From the question, a base angle of isosceles triangle is 30°.We are also informed that one of the legs is 12. The altitude is opposite to the angle having a measure of 30°. The hypoteneous in the right angled triangle which is formed by drawing the altitude is 12. This will be calculated as:

Sin = opposite/hypotenuse

Sin 30°=length of the altitude/12

Note that sin 30° = 0.5

0.5 = length of the altitude/12

length of the altitude = 12 × 0.5

Hence, length of altitude = 6

5 0
3 years ago
Choose an algebraic expression for: 9 more than w
denis-greek [22]
The answer is a.w+9 because it means the w plus 9 more it the same as 9 more than w
3 0
3 years ago
All models are reductions of the original object.<br> True<br> False
viktelen [127]

Answer:

true

Step-by-step explanation:

models are a smaller example of an original object

3 0
2 years ago
Read 2 more answers
A recent survey estimated that 19 percent of all people living in a certain region regularly use sunscreen when going outdoors.
serg [7]

The correct option is: (E) It is plausible that the percent of all people living in the region who regularly use sunscreen is 18.5%.

<u>Step-by-step explanation:</u>

The margin of error is a statistic expressing the amount of random sampling error that occurred due to miscalculation and survey results. The margin error is usually a small amount of error.

Generally 5% of margin of error is common and acceptable. When the percentage of the margin of error increases, the confidence in the report result will be reduced.

The recent survey reveals that 19% of the people living in a certain region regularly use sunscreen when going outdoors. The permissible margin of error in this survey is 1%.

Probably the percentage of people using sunscreen in the particular region will be <u>18.5%. </u>

5 0
4 years ago
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