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AlekseyPX
3 years ago
14

The formula for the circumference of a circle is c=πr, where r is the radius and C is the circumference. The equation solved for

r is r=c/2π
Find the radius of a circle that has a circumference of 16π
A)r=4
B)r=8
C)r=12
D)r=16
Mathematics
1 answer:
dem82 [27]3 years ago
4 0

Answer:

The answer is B

Step-by-step explanation:

r = c/2π

c = 16π

r = 16π/2π

= 8

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8 0
3 years ago
Directions: for questions 1 through 4, find the diagonal length of each solid figure.
Alex787 [66]
\text{The length of the diagonal is }11.2\text{ mm}

Here, we want to find the diagonal of the given solid

To do this, we need the appropriate triangle

Firstly, we need the diagonal of the base

To get this, we use Pythagoras' theorem for the base

The other measures are 6 mm and 8 mm

According ro Pythagoras' ; the square of the hypotenuse equals the sum of the squares of the two other sides

Let us have the diagonal as l

Mathematically;

\begin{gathered} l^2=6^2+8^2 \\ l^2\text{ = 36 + 64} \\ l^2\text{ =100} \\ l\text{ = }\sqrt[]{100} \\ l\text{ = 10 mm} \end{gathered}

Now, to get the diagonal, we use the triangle with height 5 mm and the base being the hypotenuse we calculated above

Thus, we calculate this using the Pytthagoras' theorem as follows;

\begin{gathered} d^2=5^2+10^2 \\ d^2\text{ = 25 + 100} \\ d^2\text{ = 125} \\ d\text{ = }\sqrt[]{125} \\ d\text{ = }11.2\text{ mm} \end{gathered}

7 0
11 months ago
Find the unknown number. Enter your answer in simplest form.<br> 9/10 - ? = 1/2 ?
lord [1]

Answer:

well its 2/5

Step-by-step explanation:

because its 4/10 but you wanted to simplify it so its 2/5

brainlist? its the crown btw

8 0
2 years ago
Read 2 more answers
List some ways that modern cities in developed countries have improved sanitation conditions over the last 200 years.
lorasvet [3.4K]

Answer:

They can build pipes for clean water, and building toilets can also help get rid of unhygienic.... You know Also, hygiene education would help too.

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4 0
2 years ago
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Answer:

157

Step-by-step explanation:

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0.08x = 18.27 - 6.00

0.08x = 12.56

12.56/0.08=

157

4 0
3 years ago
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