20 if i am correct lowest 2 digit number is 10
Barrel is assumed to be a cylinder
surface area of a cylinder=2 caps+lateral area
so
SA=2pir^2+2hpir
h=8
r=8
SA=2pi8^2+2(8)pi8
SA=2pi64+128pi
SA=128pi+128pi
SA=256pi square feet or aprox
SA=804.248 square feet is the surface area of 1barrel
14:10 Multiply both numbers by the same value to find equivalent ratios
<h2>
A formula for the nth term in given arithmetic sequence = 0.5(n - 1) or, (n - 1)</h2>
Step-by-step explanation:
Given,
= 0, = 0.5, = 1, = 1.5, ...
To find, a formula for the nth term in given arithmetic sequence = ?
Here, first term (a) = = 0 and
common difference(d) = - = - = 0.5 - 0 = 0.5
We know that,
The nth term of the arithmetic sequence
Put a = 0 and d = 0.5, we get
= 0 +(n - 1)0.5
= 0.5(n - 1) or, (n - 1)
∴ A formula for the nth term in given arithmetic sequence = 0.5(n - 1) or, (n - 1)
If X is 5
Then f(5) = 3(5) + 2
= 17