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2 years ago

Find the distance between each pair of points. Round to the nearest tenth, if necessary.

Mathematics

1 answer:

Naya [18.7K]2 years ago

4 0

Answer:

Step-by-step explanation:

Plug into distance formula:

Points: (5, -2), (3, -4)

sqrt( ((x2 - x1)^2) + ((y2 - y1)^2))

sqrt( ((3 - 5)^2) + ((-4 + 2)^2))

sqrt( 4 + 4)

sqrt8 ≈ 2.8 OR

sqrt8 = 2√2

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Given a = -3, b = 4 and c= -5, evaluate -la - bl + c.

Katena32 [7]

Answer:

-12

Step-by-step explanation:

Step 1: Plug in the values: - |-3 - 4| - 5

Step 2: Solve!

= - |-7| -5

= - 7 - 5

= -12

8 0

4 years ago

The largest possible fair dice is a disdyakis triacontahedron, which has 120 sides. What is the expected value, E(X), of rolling

Luden [163]

Assuming that the 120 faces have all numbers from 1 to 120 printed on them, we have a dice that can output all numbers between 1 and 120 with the same probability of 1/120.

So, the expected value is

$\displaystyle \sum_{i=1}^{120}i\cdot p(i) = \sum_{i=1}^{120}i\cdot \dfrac{1}{120}=\dfrac{1}{120}\sum_{i=1}^{120}i=\dfrac{1}{120}\dfrac{120\cdot 121}{2}=\dfrac{121}{2}=60.5$

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3 years ago

The perimeter of a pentagon is the sum of the lengths of its sides. In a regular pentagon, all sides have the same length.

Oksanka [162]

Since a pentagon has 5 sides, you would divide the perimeter by the number of sides.

641.5/5 = 128.3cm

Therefore, the length of one side of the pentagon is 128.3cm.

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3 years ago

What is the simplified form of the expression

Natasha2012 [34]

I`m not sure of the answer but if you look up Math Way it might be able to help.

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4 years ago

Read 2 more answers

___ supports a main idea by providing clear evidence or proof without using numbers.

iren [92.7K]

B) An example..... It would be better to explain and give an example to what your trying to say.

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4 years ago