Answer:
452.45mmm^2
Step-by-step explanation:
Step one:
Given data
outer radius R= 20mm
inner radius r= 16mm
let us find the area of the outer circle
Area= πR^2
Area= 3.142*20^2
Area= 3.142*400
Area= 1256.8 mm^2
let us find the area of the inner circle
Area= πr^2
Area= 3.142*16^2
Area= 3.142*256
Area= 804.35 mm^2
Hence the area of the section is
Area of outer- Area of inner
=1256.8-804.35
=452.45mmm^2
Answer:
if each side is 6 millimeters and its a cube what is 6x4
Step-by-step explanation:
Answer:
the 2 one or the last one
Step-by-step explanation:
The equation would be 8 times the amount of pounds bought equals the amount paid.
<h2>Answer:</h2>
8p = c
Beginning with the last deposit and working toward the present, the amount in the account is
3000 + 3000*1.06 + 3000*1.06^2 + 3000*1.06^3 + 3000*1.06^4
= 3000*(1.06^5 -1)/(1.06 -1)
= 16,911.28 . . . dollars
_____
The sum is found using the formula for the sum of a geometric series. For first term a1 and common ratio r, that sum is
Sn = a1*(r^n -1)/(r -1)
Your series has a1=3000 and r = 1.06. It has 5 terms (n=5).
