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TiliK225 [7]
3 years ago
11

What is the circumference of a circle whose radius is 20 feet? Leave answer in terms of π.

Mathematics
2 answers:
lesantik [10]3 years ago
5 0

Answer:

What is the circumference of a circle whose radius is 20 feet? Leave answer in terms of π.  

A)  10π feet  

B)  20π feet  

<u> C)  40π feet  </u>

 D)  100π feet

Step-by-step explanation:

circumference = 2πr

circumference=2×π×20

circumference=40π

lbvjy [14]3 years ago
3 0

[] Answer []

\boxed{40\pi \ Feet}

[] Explanation []

Area = πr^{2}

Pi = 3.14

Radius = 20

Our Equation:

3.14 * 20 * 2

3.14 * 20 = 62.8 * 2 = 125.6

\boxed{[] \ Eclipsed \ []}

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Nataly_w [17]
Pythagorean theorem.
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3 years ago
Multiply (-5)^3 (raised to the third power)
gayaneshka [121]

Answer:

- 125

Step-by-step explanation:

(-5)^{3}

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A square with one side length represented by an expression 6(3x+8)+32+12x
Viefleur [7K]
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8 0
3 years ago
Two ways you could evaluate 37% of the sum of 27 3/5 and 15.9 plz answer as soon as you can
zhannawk [14.2K]

Answer:

16.095.  

Step-by-step explanation:

We can either find 37% of both the numbers and add the results, or we can add the numbers and then find the 37% of the sum.  

1. Let us find 37% of both numbers separately.

First of all we will convert our mixed fraction into improper fraction.

27\frac{3}{5}=\frac{138}{5}

37% of 27\frac{3}{5} will be,

\frac{138}{5}\times \frac{37}{100}=\frac{138}{5}\times 0.37

27.6\times 0.37=10.212

Now let us find 37% of 15.9.

15.9\times \frac{37}{100}=15.9\times 0.37=5.883

Now let us add 37% of both numbers.

10.212+5.883=16.095  

Therefore, 37% of our given numbers will be 16.095.

2. Now we will add both numbers and then find 37% of their sum.

27\frac{3}{5} +15.9=\frac{138}{5}+15.9

27.6 +15.9=43.5

Now let us find 37% of 43.5.  

43.5\times\frac{37}{100}=43.5\times 0.37=16.095

Therefore, 37% of 43.5 is 16.095. We have seen that using either way we got the same answer.


4 0
3 years ago
2e^x +e^(-2x)=0 <br> help pls
Phantasy [73]

Answer:

No real solutions

Step-by-step explanation:

The left hand side is the sum of two functions that are always positive.

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