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Natalka [10]
3 years ago
8

Find the perimeter of a regular octagon if one side has a measure of 8cm A) 16 cm B) 56cm C) 64cm D) 72cm

Mathematics
2 answers:
zysi [14]3 years ago
8 0
C. 64cm 
Hope this helps! :)
Vesna [10]3 years ago
5 0
C. 64cm. P=8a=8·8=64. I hope this helps you.
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finlep [7]

Quadratic formula:

x=\frac{-b±\sqrt{b^{2}-4ac } }{2a}

What do we have:

a=4

b=-10

c=5

Substitude:

x=\frac{10±\sqrt{b^{2}-4(4)(5)}}{2(a)}

Solve:

x=\frac{10±\sqrt{(-10)^{2}-4(4)(5)}}{2(4)}\\\\x=\frac{10±\sqrt{100-4(20)}}{8}\\\\x=\frac{10±\sqrt{100-4(20)}}{8}\\\\x=\frac{10±\sqrt{100-80}}{8}\\\\x=\frac{10±\sqrt{20}}{8}\\\\x=\frac{10±2\sqrt{5 }}{8}\\\\x=\frac{2(±5\sqrt{5) }}{2(4)}

Cancel the common terms:

x=\frac{5±\sqrt{5} }{4}

5 0
3 years ago
Which statement describes the graph of x = 4
Aleks04 [339]

Answer:

The graph of x=4 is a vertical line parallel to y-axis and having a x-intecept:(4,0) and having no y-intercept

Step-by-step explanation:

So I think that the answer would be this, which means answer 1!! Hope this helps

5 0
3 years ago
Each of the 60 students in math curriculum is taking at least one of the three math course offered. Forty-six are taking consume
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Answer:

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3 0
3 years ago
Read 2 more answers
How long will it take me to get 5 nonillion if I get 257.21 septillion per second?
Tatiana [17]

Step-by-step explanation:

1 septillion = 10^6 nonillion

the taking time = 5× 10^-6 / 257.21

= 500× 10^-8 /257.21

= 1.94 × 10^-8 seconds

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2 years ago
Which value is equivalent to 4
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Hey!!!!!

It looks like you meant to attach a picture, forgot, or your internet connection went out. Because of whatever the cause, we cannot answer your question!

Could you try reposting it?

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Sahkfam

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3 years ago
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