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Kaylis [27]
3 years ago
7

How do I find the exact area of a circle with a diameter

Mathematics
2 answers:
mamaluj [8]3 years ago
6 0

Answer:

There are formula for it if the diameter is given.  instead of converting to radius, you can use πd.

Area of a circle is πr² or πd

Hope this helps

God bless you.

kirill115 [55]3 years ago
4 0

Answer:

Divide the diameter by 2 and insert for radius in the equation

Step-by-step explanation:

To find the area of a circle, we can use the equation <em>A=pir^2 </em>or <em>area=pi*radius squared.</em>

The radius is half of the diameter, so just divide the diameter by 2 and plug it into the equation.

Hope this helps!

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30 meter building casts a shadow the distance from the top of the building to the tip of the shadow is 37 M find the length of t
Pavlova-9 [17]

Answer:  22 meters

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

Draw a picture of a right triangle and label the height as 30 meters and the hypotenuse as 37 meters.  Use the Pythagorean Theorem to find the base (the length of the shadow).

a² + b² = c²

x² + 30² = 37²

x²          = 37² - 30²

x²          = 1369 - 900

x²          = 469

√x²       = √469

        x = 21.656

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3 0
3 years ago
Evaluate f (2) if f (x)= 10-x^3
weeeeeb [17]
<span> f (x)= 10-x³. 
f(2) means the value of the function when x=2.
So, we need to substitute 2 instead of x.

f(2) = 10 - 2³ = 10-8 =2

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3 years ago
Table show step by step how do you simplify the algebraic expression 3(x-5)+4x. <br>Justify step 4​
ale4655 [162]
<h3>Answer: Commutative Property (choice C)</h3>

===================================================

Explanation:

Here are all of the justifications for each step

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  • Step 3. Multiply  (the 3 and 5 multiply to 15)
  • Step 4. Commutative property. Specifically, this is the commutative property of addition which allows us to add any two numbers in any order we want. In this case, the  -15 and 4x terms swap places.
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3 years ago
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ExtremeBDS [4]

Answer:

4

Step-by-step explanation:

Nothing else rlly works besides 1,2,4 soo

Kono Dio Da!!!

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3 years ago
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kati45 [8]

Answer:

<em>X</em><em>. </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em> </em><em>f(</em><em>x)</em>

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3 years ago
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