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TiliK225 [7]
4 years ago
12

24-7 Video Games takes a random survey of 500 site users and determines that the mean age of the sample is 18. Which conclusion

is valid based on the random survey? A) Most users on all video game sites are exactly 18 years of age. B) Most users on the 24-7 Video Games site are about 18 years of age. C) Most users on the 24-7 Video Games site are 18 years of age or older. Eliminate D) All users on the 24-7 Video Games site are 18 years of age or younger.
Mathematics
2 answers:
ivolga24 [154]4 years ago
3 0
B, because if I don't see a chart, I will have to assume that these people are at or are around 18 years of age.
ddd [48]4 years ago
3 0

Answer:

B) Most users on the 24-7 Video Games site are about 18 years of age.

Step-by-step explanation:

The sample was taken from the population of users on 24-7 Video Game site. The mean gives an approximate age of the sample.

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P + 2q = 11<br>2p + q = 10​
poizon [28]

Answer:

p = 3

q = 4

Step-by-step explanation:

p + 2q  = 11          --------------------(I)

       p = 11 - 2q

2p + q = 10         --------------------(II)

Substitute p = 11 -2q in equation (II)

2(11 - 2q) + q =10

2*11 - 2q *2 + q = 10

22 - 4q + q = 10

  22 - 3q    = 10

         -3q   = 10 - 22

        -3q    = -12

              q = -12/-3

 q = 4

Plugin q = 4 in equation (I)

p + 2q = 11

p + 2*4  = 11

p + 8 = 11

      p = 11 - 8

      p = 3

6 0
3 years ago
Please help please please
Natalka [10]
<h2><u>Answer:</u></h2>

'?' is <u>88°.</u>

<h2><u>Step-by-step explanation:</u></h2>
  • First, we work out the final angle of the left triangle, which has a total of 180°. To do this we take 40° and 66° from 180°, giving us <u>72°</u>
  • Because there is a straight line along the bottom (which will total 180°), we take both 72° and 56° from 180°, giving us <u>52°</u>, which is the bottom left angle of the right triangle.
  • Finally, to work out '?', we take 52° and 40° from 180° to get our final answer of <u>88°.</u>
5 0
3 years ago
Earth revolves around the Sun in 365 days, but the planet Mercury does so in only 88 days. Compared to Earth, how many more comp
Elena L [17]

Answer:

In a 1000 days Mercury will make 8.624 more revolutions than Earth!

Step-by-step explanation:

<u>Earth</u> takes 365 days to make a complete revolution.

we can say that the rotational speed of Earth is \dfrac{1}{365}\frac{\text{rev}}{\text{day}}

so, in a 1000 days how many revolutions will Earth have made?

\dfrac{1}{365}\frac{\text{rev}}{\text{day}}\times(1000\,\text{day})

see that the 'day's cancel out. Simply multiply the two numbers!

2.739\text{rev}

<u>Next, do the same for Mercury</u>

we can say that the rotational speed of Mercury is \dfrac{1}{88}\frac{\text{rev}}{\text{day}}

as it completes 1 revolution in 88 days.

so, in a 1000 days how many revolutions will Mercury have made?

\dfrac{1}{88}\frac{\text{rev}}{\text{day}}\times(1000\,\text{day})

multiplying by 1/88 by 1000 yields:  

11.363\text{rev}

The Question is how many MORE complete revolutions will Mercury make in 1000 days?

We need to subtract the revolutions of Mercury with Earth to find how far ahead is Mercury from Earth

11.363\text{rev} - 2.739\text{rev}

8.624\text{rev}

In a 1000 days Mercury will make 8.624 more revolutions than Earth!

5 0
3 years ago
PLEASE HELP HELP!!! PRECALC
brilliants [131]

Answer:

The base is 0.1

The base is less than 1 so the function is decreasing

The x intercept is (3,0)

Step-by-step explanation:

The base of a logarithm refers to the number that must be raised to the power of the number on the right hand side of the logarithmic equation in order to yield the number on the left hand side of the logarithmic equation. It is always written as a subscript below the log symbol. In this case, the base is 0.1.

When the base of a logarithm is less than 1, it means that the function is decreasing as is the case in this question.

Looking at the graph, the x axis is cut at the point (3,0). This is the x-intercept of the graph.

4 0
3 years ago
Job A pays an annual salary of $17,500 while job B pays $18,000. The taxpayer choosing between the 2 jobs files his federal inco
Murljashka [212]
The 17500 job will pay tax of (17500-5700-3650)=8150*0.10=815
The 18000 job will pay tax of 8350*0.10+300*0.15=880
The difference in pay is therefore 500-(880-815)=$435


8 0
4 years ago
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