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Gre4nikov [31]
3 years ago
11

A circular railroad-crossing sign has a diameter of 30 inches. Which measurement is closest to the area of the sign?

Mathematics
1 answer:
marishachu [46]3 years ago
8 0

Answer:

A is about 706.86 inches squared   hope this helps!   :)

Step-by-step explanation:

Using the formulas

A=πr2

d=2r

Solving forA

A=1

4πd2=1

4·π·302≈706.85835in²

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maw [93]

Answer :

The required number is 2.

Step-by-step explanation:

Given : The sum of six fifths and six times a number is equal to four fifths subtracted from seven times the number.

To find : The number ?

Solution :

Let the number be 'x'.

The sum of six fifths and six times a number i.e.  \frac{6}{5}+6x

Four fifths subtracted from seven times the number i.e. 7x-\frac{4}{5}

According to question,

\frac{6}{5}+6x=7x-\frac{4}{5}

7x-6x=\frac{6}{5}+\frac{4}{5}

x=\frac{10}{5}

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3 years ago
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rusak2 [61]

None of those are near 36 at all, so none of the above would be your answer.

6 0
4 years ago
some species of bacteria can copy their DNA and divide every 40 minutes. If a COLONY of 100 of these such bacteria begins with a
VikaD [51]

Answer:

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8 0
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Lady bird [3.3K]
<span>In this problem,think of it this way. 1 is to 22 as 1.6 is to X.

When you solve for X you will have the height of your school

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3 0
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3 years ago
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