Luna Park in Coney Island charges $12 for entry and $2 per ride. Ariana visits the park and goes on 4 rides. How much money did
1 answer:
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Mean = -2
Median = -1
Mode = Nil
Range = 38
Step-by-step explanation:
Given data is:
-18, 10, -20, -11, 9, 18
Arranging the data in ascending order
-20, -18, -11, 9, 10, 18
<u>Mean:</u>
Mean is given by the formula
Items are: 6
<u>Mode:</u>
Mode is the most frequent value in the data. So,
As there is no value repeated in the data. There is no mode
<u>Median:</u>
Median is the middle value of the data. As the no. of data value are even,
the average of middle 2 values is mode.
Note that the data has to be arranged in ordered to find median
Here,
<u>Range:</u>
Range is the difference between the largest and smallest value of the data
Here
Largest value = 18
Smallest value = -20
So,
Hence,
Mean = -2
Median = -1
Mode = Nil
Range = 38
Keywords: Data, Median
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9514 1404 393
Answer:
not a right triangle
Step-by-step explanation:
The perimeter is 22, so we have ...
AB +BC +CA = 22
8 + 5 + CA = 22
CA = 22 -13 = 9
If this is a right triangle, the sum of the squares of the short sides will be equal to the square of the long side.
AB² +BC² = 8² +5² = 64 +25 = 89
This is not the same as ...
CA² = 9² = 81
The triangle is not a right triangle.
_____
<em>Additional comment</em>
If you're familiar with a few Pythagorean triples, you know that a couple involving a side length 5 are (3, 4, 5) and (5, 12, 13). That is, (5, 8, 9) is NOT a Pythagorean triple, so you know immediately that those side lengths do not form a right triangle. (No calculation is necessary.)
Answer:
w = 3.2 m
Step-by-step explanation:
Since the triangles are similar then the ratios of corresponding sides are equal, that is
=
, that is
=
( cross- multiply )
8.5w = 27.2 ( divide both sides by 8.5 )
w = 3.2 m