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abruzzese [7]
3 years ago
7

What is the perimeter of a semicircle with a diameter of 18?

Mathematics
1 answer:
dexar [7]3 years ago
3 0
<h2>Answer:</h2>

<u>The perimeter is </u><u>56.52 uni</u><u>ts</u>

<h2>Step-by-step explanation:</h2>

The The perimeter of a circle is π × d where d is the diameter

So

P = pi * d

since d is 18 so putting in the equation

P = 3.14 * 18

P = 56.52

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Guys please help, ill give brainliest to the right answer
anygoal [31]

Answer:

Associative Property of Addition

Step-by-step explanation:

Here, in the second line, there are plus signs (+'s), indicating this is addition. But this time, unlike the first line, the numbers are grouped together with parentheses. When numbers are grouped with parentheses, it means it is the Associative property. Because we are adding, it's the associative property of ADDITION.

Hope this helped!

8 0
3 years ago
Read 2 more answers
Help a fellow out please
Liula [17]

Answer:

24.27 cm

Step-by-step explanation:

sin 65 degrees = 22/x, so:

      1                   x

------------------ = ------

 sin 65 deg       22

so x = 22 / (sin 65 deg) = 22/0.906 = 24.27 cm

8 0
3 years ago
If f(x)=-x+2, find f(4)
pickupchik [31]

Answer:

f(4)=-2

Step-by-step explanation:

f(4)=-4+2=-2

5 0
3 years ago
HELP!! Given f(x)=5x squared and g(x) = x squared + 2x squared - 5x, what is F (x) * g(x)?
TEA [102]
X^2+2x^2-5x

((x^2)+2x^2)-5x

Pull the factors out

3x^2-5x=x(3x-5)

x(3x-5)

x(3x-5)*5x^2

5x(3x-5)*x^2


Final

5x^3*(3x-5)



8 0
3 years ago
If you run 6. Miles an hour how long will it take to do 18 miles help quick pls
lys-0071 [83]
18miles/6mph = 3hrs
3 hours
6 0
3 years ago
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