Answer:
Step-by-step explanation:
Given:
Radius of circular mirror, r = 6x
Length of metal frame, l = 18x
Area of square, As = l^2
Area of square = 18x × 18x
= 324 x^2.
Area of circular mirror, Ac = pi × r^2
= π × (6x)^2
= 36π x^2.
The expression for the area of the frame is subtracting the mirror from the metal frame = As - Ac
= 324x^2 - 36πx^2
= 36x2 (9 - π).
Answer:
4.23691242438e+12
Step-by-step explanation:
Answer:
a = 2
b = 4
c = 8
Step-by-step explanation:
Remember the relationship:

First, in "a" we have:
a) ![8^{1/3} = \sqrt[3]{8} = 2](https://tex.z-dn.net/?f=8%5E%7B1%2F3%7D%20%20%3D%20%5Csqrt%5B3%5D%7B8%7D%20%20%3D%202)
then in the next ones, we can use the result that we obtained in the part a:
b) 
Now we can do exactly the same in c:
c) where first we need to know that:
2*2*2*2 = 4*4 = 16
then:
2^4 = 16
then:
![\sqrt[4]{16} = 16^{1/4} = 2](https://tex.z-dn.net/?f=%5Csqrt%5B4%5D%7B16%7D%20%3D%2016%5E%7B1%2F4%7D%20%3D%20%202)
Now let's solve the problem:

Answer:
it is b I just did it
Step-by-step explanation: