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Murrr4er [49]
3 years ago
6

What two properties of a Cepheid variable star do we need to know in order to calculate the approximate distance from Earth?

Mathematics
1 answer:
Radda [10]3 years ago
8 0

Answer:

4 and 6

Step-by-step explanation:

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A square has a side length of 5. if another square is created by doubling the side length, what happens to the perimeter of the
garik1379 [7]
Its greater by a factor of 2^2 ( = 4)

Its 4 times the area of the original square.
7 0
4 years ago
a polygon of 100 sides has all possible drawn from a chosen vertex to the others. how many triangles are formed
Hoochie [10]

Answer:

98

Step-by-step explanation:

for a 4 sided polygon you can only draw one diagonal from one vertex so it forms 2 triangles.

For 5 sides  you get 3 triangles

For 6 sides  - 4

For 7 sides  - 5

For 8 sides - 6

Looks like we get 2 less triangles than the number of sides in the polygon


Answer for 100 sides is 98 triangles.

7 0
3 years ago
Need help!!!<br> On this it’s all math work!
Anton [14]

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Step-by-step explanation:

7-8  A squared + B squared =c Square

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         81        64                                         100        144

               145                                                    244

5 0
3 years ago
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Answer:

A C E

Step-by-step explanation:

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3 years ago
What is the percentage of 136 days to 85 days
Elena-2011 [213]
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