Answer:
<h2>d = 52 in</h2><h2>C = 6π mm²</h2>
Step-by-step explanation:
The formula of a circumference:
![C=2\pi r=d\pi](https://tex.z-dn.net/?f=C%3D2%5Cpi%20r%3Dd%5Cpi)
r - radius
d - diameter
We have
.
Calculate the diameter using
:
<em>divide both sides by π</em>
![d=52\ in](https://tex.z-dn.net/?f=d%3D52%5C%20in)
-------------------------------------------------------------------------
If a circle inscribed in a square, then the diameter of a circle and a side of a square are congruent (have the same length).
We have the area of the square:
![A=36\ mm^2](https://tex.z-dn.net/?f=A%3D36%5C%20mm%5E2)
The formula of an area of a square:
![A=s^2](https://tex.z-dn.net/?f=A%3Ds%5E2)
s - side
Substitute:
![s^2=36\to s=\sqrt{36}\\\\s=6\ mm](https://tex.z-dn.net/?f=s%5E2%3D36%5Cto%20s%3D%5Csqrt%7B36%7D%5C%5C%5C%5Cs%3D6%5C%20mm)
The formula of a circumference ![C=d\pi](https://tex.z-dn.net/?f=C%3Dd%5Cpi)
d - diameter
d = s → d = 6 mm
Substitute:
![C=6\pi\ mm](https://tex.z-dn.net/?f=C%3D6%5Cpi%5C%20mm)
Answer:
8x+1
Step-by-step explanation:
perimeter of a triangle is sum of all three sides
so
(2x)+(2x+3)+(4x-2)=8x+1
Answer:
Melba works more
Step-by-step explanation:
We need to compare with the same units
Lets convert hours to minutes
1 hour = 60 minutes
8 hours* 60 minutes/1hour = 480 minutes
Keith works 480 minutes
Melba works 2250 minutes
Melba works more
Answer:
b i belive i may be incorrect
Step-by-step explanation:
Answer:
7 guest will not be served.
Step-by-step explanation: