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AleksandrR [38]
3 years ago
13

PLEASE HELP ASAP! QUICK MATH QUESTION!

Mathematics
1 answer:
Ksivusya [100]3 years ago
3 0
$155,381 total after 15 years
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The data shows the speed, in miles per hour, of motorists on a stretch of road.
melomori [17]

Answer:

i. 18 miles per hour is an outlier

ii. the outlier decreases the mean speed

Step-by-step explanation:

An outlier in a given data is one of the values that is far greater or lesser compared to others. It affect the mean and standard deviation of a given data significantly.

From the given data, 18 is far too small compared to other values. This is certainly an outlier. This would affect the mean speed by decreasing the value.

An interquartile range is a measure of differences among data by dividing a set of given data into quartile. Increasing the value of the outlier would increase the interquartile range.

k/jkjln/kjln/j

7 0
3 years ago
What is the simplified expression for 3 a squared + 9 a b + 5 minus 4 a squared minus 4 a b + 3?
Gemiola [76]

Answer:

-1ab^2 + 5b + 8

Step-by-step explanation:

3a^2+9ab+5-4a^2-4ab+3

3a^2-4ab^2=-1ab^2

9ab-4ab=5ab

5+3=8

-1ab^2+5ab+8

8 0
3 years ago
Read 2 more answers
1. Parallelogram WXYZ is shown on the coordinate plane ect... <br><br> Added photo plz help!!
aliya0001 [1]

Answer:

Step-by-step explanation:

12.718 units

Step-by-step explanation:

The coordinates of the vertices of parallelogram WXYZ are given to be W(0,-1), X(4,0), Y(3,-2) and Z(-1,-3).

So, the perimeter of the parallelogram will be 2(WX + XY) {Since opposite sides of parallelogram are same in length}

Now, length of WX =  units,  To find the units click this link :

https://tex.z-dn.net/?f=%5Csqrt%7B(-1)%5E%7B2%7D%20%2B%204%5E%7B2%7D%20%7D%20%3D%20%5Csqrt%7B17%7D%20%3D%204.123

And, length of XY =  units, To find the units click this link :

https://tex.z-dn.net/?f=%5Csqrt%7B(4-3)%5E%7B2%7D%20%2B%20(0-(-2))%5E%7B2%7D%7D%20%3D%20%5Csqrt%7B5%7D%20%3D%202.236

Therefore, the perimeter of the parallelogram WXYZ = 2(4.123 + 2.236) = 12.718 units. (Answer)

5 0
2 years ago
A grocery store sells fruit by the pound. The table shows the costs for raspberries and strawberries, where I represents the wei
Anika [276]

Answer:

2 pounds Raspberry costs - 9.50. I pound Raspberry cost> 9.50 =4.75 2 ki 1 pound. Strawberries cost = 3.22. cost of Raspberry Jafrost of Strawberry). = 4.75.3.22 f. 53. Raspberry cost $ 1.53 more than strawberries.

Step-by-step explanation:

4 0
2 years ago
Which sampling would be appropriate to survey 120,000 people?
kipiarov [429]

Answer: Id say b

Step-by-step explanation: a would be too high and a bit too detailed. Whereas c and d will be inaccurate.

8 0
3 years ago
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