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MrMuchimi
3 years ago
10

Planet Fitness charges a one-time membership fee of $25 and then a monthly charge of $10. Retro Fitness charges a one-time membe

rship fee of $10 and then a monthly charge of $20. When is it less expensive to join Planet Fitness
Mathematics
1 answer:
sergiy2304 [10]3 years ago
7 0

Answer:

x < 3/2 month

Step-by-step explanation:

Let

x = number of months

Planet fitness:

25 + 10x

Retro fitness:

10 + 20x

Equate

25 + 10x < 10 + 20x

25 - 10 < 20x - 10x

15 < 10x

x < 15/10

x < 3/2 month

It is less expensive to join planet when the number of months is less than 3/2 months

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Andreas93 [3]
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6 0
3 years ago
How is the graph of the parent function, y = StartRoot x EndRoot transformed to produce the graph of y = StartRoot negative 2 x
tino4ka555 [31]

The graph of the parent function is horizontally compressed by a factor of 2 and reflected over the y-axis ⇒ Last answer

Step-by-step explanation:

Let us revise some transformation

A horizontal compression (or shrinking) is the squeezing of the graph toward the y-axis.  

A horizontal stretching is the stretching of the graph away from the y-axis  

  • If k > 1, the graph of y = f(k•x) is the graph of f(x) horizontally shrunk (or compressed) by dividing each of its x-coordinates by k.
  • If 0 < k < 1 (a fraction), the graph of y = f(k•x) is the graph of f(x) horizontally stretched by dividing each of its x-coordinates by k
  • If k should be negative, the horizontal stretch or shrink is followed by a reflection across the y-axis

∵  y = √x is a parent function

∵ Its graph transformed to produce the graph of y = √(-2x)

- That means x is multiplied by a factor k, then it is compressed

   or stretched horizontally

∵ k = -2

- The factor is -2, where 2 is greater than 1, then it is compressed

   horizontally as the first rule above and the negative means

   reflected across the y-axis as the third rule above

∴ The graph of the parent function is compressed horizontally and

    reflected across the y-axis

The graph of the parent function is horizontally compressed by a factor of 2 and reflected over the y-axis

Look to the attached figure for more understand

Learn more:

You can learn more about transformation in brainly.com/question/9381523

#LearnwithBrainly

7 0
3 years ago
Read 2 more answers
Three sides of a triangle measure 8m, 14m, and 12m. Find the largest angle of the triangle to the nearest degree.
blsea [12.9K]
Perfect application for the Law of Cosines.

c^2 = a^2 + b^2 - 2ab cos C; here we want C, the angle opposite the 14 m side.

(14 m)^2 = (8 m)^2 + (12 m)^2 - 2(8 m)(12 m) cos C

196 = 64 + 144 - 192 cos C

         -12    = -192 cos C, or  cos C = 0.0625

Then C = arccos 0.0625 = 1.5083 radians
                      
                                             1.5083 radians       180 deg
                                       =  ----------------------- * -------------------
                                                          1                 3.14159 rad

                                        = 86.417 degrees

                                         = 86 degrees, when rounded off as specified.
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3 years ago
Find range (R):27,12,15,21,24,9​
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27-9= 18

Have a nice day!
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3 years ago
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Determine what type of statistical test should be used to answer each of the questions below. (You will only use each response o
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Answer:

1.One proportion

2. Proportions from Dependent Samples

3. Two Independent Proportions

4. One Mean

5. Means from Dependent Samples

6. Two Independent Means

Step-by-step explanation:

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From the above information, there is only one sample and the question is about proportion. So, we must use "One proportion".

Do college students change their view on climate change as they go through college? One hundred freshman are asked if they believe in climate change. The same students are asked four years later if they also believe in climate change. - Proportions from Dependent Samples

From the information given, there are two samples and samples are dependent ( that is same students are asked four years later). Furthermore, the question is about proportion, we must use " Proportions from dependent samples ".



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From the information given, there are two independent samples and they are asking about proportion, we must use "Two independent proportions".

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From the information, there is only one sample and they are asking about mean. Therefore, we must use ". One mean".

Is there a difference in the amount of time that college students spend reading or watching the news as they go through college? One hundred students were asked as freshmen and as senior how many minutes a day they spent reading or watching the news? - Means from Dependent Samples

There are two samples and samples are dependent ( the same students are asked four years later). Also, they are asking about mean, we must use "Means from dependent samples ".

Is there is a difference in the amount of time that Republicans and Democrats spend watching or reading the news? - Two Independent Means

From the information given, there are two independent samples and they are asking about mean, we must use "Two independent means".

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