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3 years ago

The sum of the measures of the interior angles in a convex polygon is 1,260°. How many sides does the polygon have?

Mathematics

2 answers:

Wittaler [7]3 years ago

8 0

Answer:

Step-by-step explanation:

The sum of the interior angles of a polygon is

sum = 180° (n - 2) ← n is the number of sides , thus

180 (n - 2) = 1260 ( divide both sides by 180 )

n - 2 = 7 ( add 2 to both sides )

n = 9

krek1111 [17]3 years ago

5 0

C. 9
Step by step explanation

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if f(1) = -5 and f(n) = f(n-1) +7, find the first four terms and the common difference of the sequence

Alex_Xolod [135]

Answer:

- 5, 2, 9, 16 and d = + 7

Step-by-step explanation:

to obtain the first four terms substitute n = 2, 3, 4 into the recursive formula

f(1) = - 5 ← given

f(2) = f(1) + 7 = - 5 + 7 = 2

f(3) = f(2) + 7 = 2 + 7 = 9

f(4) = f(3) + 7 = 9 + 7 = 16

common difference d = 16 - 9 = 9 - 2 = 2 - (- 5) = 7

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3 years ago

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Katena32 [7]

No to not being able to get both.

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3 years ago

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Aleks [24]

Answer:

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Step-by-step explanation:

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3 years ago

Monica paid sales tax of $1.60 when she bought a new bike helmet. If the sales tax rate was 8%, how much did the store charge fo

Lapatulllka [165]

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3 years ago

It is known that the population variance equals 484. With a .95 probability, the sample size that needs to be taken to estimate

Hitman42 [59]

Answer:

The minimum sample size is n = 75 so that the desired margin of error is 5 or less.

Step-by-step explanation:

We are given the following in the question:

Population variance = 484

Standard deviation =

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