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Ad libitum [116K]
3 years ago
10

Grace is looking at a report of her monthly cell-phone usage for the last year to determine if she needs to upgrade her plan. Th

e list represents the approximate number of megabytes of data Grace used each month.
700, 735, 680, 890, 755, 740, 670, 785, 805, 1050, 820, 750
What is the standard deviation of the data? Round to the nearest whole number.
Mathematics
1 answer:
Valentin [98]3 years ago
6 0

Answer:

Step-by-step explanation: Round to the nearest whole number. In order to find the standard deviation, we first have to calculate the mean (average) of the numbers. To get this we add all the numbers together and then divide by 12 since there are 12 numbers. The mean = 782. Next, we take each number and subtract the mean, taking the result and squaring it.

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mr_godi [17]

The constant rate = 20 ft / 5 seconds = 4 feet per second

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3 0
2 years ago
PLEASE HELP ME!!!!<br><br> (if you don’t know don’t answer)
Sergio039 [100]

Answer:

Here are my answers

hope this helps

Step-by-step explanation:

1. isosceles triangle

2.   3x + 15 = 90       x = 25

     x + 25 = 90        x = 65

     x + 55 = 90        x = 35

3. The size for DAB is 84

My reasoning is I went from one angle to another by subtracting 180 from my answers. For example angle 132 is supplementary to the missing angle next to it. I subtract 180 from 132 and get 48. That already solves the 2 equivalent angles in the triangle so I have 48+48+x = 180 because a full triangle equals 180. I get x = 84 then I do the same thing I did with angle 132. Angle 84 is supplementary to the missing angle next to it. I subtract 84 from 180 and get 96 then go diagonal from angle C (which is 96) to angle A. Those are supplementary so I subtract 96 from 180 and get 84.

3 0
3 years ago
Can someone please help me?? :( I will give brainliest
Simora [160]

Answer:

I think it is d either that or b, but im more positive its d

Step-by-step explanation:

5 0
2 years ago
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A bag contains 14 red marbles and 6 blue marbles. two marbles are randomly drawn without replacement. find the probability that
Ksenya-84 [330]
We take 2 marbles from 20 marbles and the total ways is 20x19:2=190
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7 0
3 years ago
The price of a video game is $35.60. If you purchase the video game for $30.26 with a coupon, what percent of the original price
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(30.26/35.6)*100= 85%

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4 0
4 years ago
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