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3 years ago

Plshelp il mark brainliest pls pls pls help pls

Mathematics

2 answers:

LekaFEV [45]3 years ago

8 0

Answer:

300

Step-by-step explanation:

the value increases by increments of 75

the way i found this out was by doing 150-75 which is 75 and then i did that for the rest of them just to make sure and in order to find the value of <em>n</em> you must add together 225 and 75 to get 300

hope this helps (❁´◡`❁)

(i tried to explain it as best as i could) have a nice day !! :)

harkovskaia [24]3 years ago

6 0

Answer:300

Step-by-step explanation:

goes up by 75 every two

225+75=300

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3 years ago

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3 years ago

A sample of college students was asked how much they spent monthly on cell phone plans. approximate the standard deviation for t

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Given

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10-19.99 7

20-29.99 20

30-39.99 28

40-49.99 12

50-59.99 7

We have to calculate the standard deviation of the given data.

Standard deviation is a measure which measures the variation in te values of data sets.

We know that the formula of calculating standard deviation is as under:

Standard deviation= $\sqrt{sum of f(x- mean)^{2} }$ / $\sqrt{sum of f-1}$

Mean=33.91392 (calculated in figure)

∑f $(x-mean)^{2}$ =8713.514 (calculated in image)

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We have to now just put the values and find the value of standard deviation.

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= $\sqrt{119.36}$

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Hence the standard deviation of mobile cost is 10.925.

Learn more about standard deviation at brainly.com/question/475676

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2 years ago

Rewrite the rational exponent as a radical expression 2 and 7 over 8 and 2 and 1 over 4

VashaNatasha [74]

Convert to improper frist
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2 and 1/4=8/4+1/4=9/4

(23/8)/(9/4)
make bottom 1
times the whole thing by (4/9)/(4/9)
(92/72)/(36/36)=
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4 years ago