Answer:

Step-by-step explanation:
Use the formula for the volume of a cylinder:
Volume= B times height
Being "B" the area of the cylinder's base (a circle of radius 4.5 ft.
Therefore the area of the base is:

So the volume of the cylinder is:

Answer:
$64.80
Step-by-step explanation:
Instead of saying 40% off, I look at is as paying 60% on. (100% less 40%). So I’m going to pay 60% of the original price of $108.
60% of $108 is $64.80
an=4n+1
Sum of first 30 terms
a1+a2+.................a30
Sn=(a1+an)*n/2
a1-----------first
terms
an=---------last
term-----a30
n= number of
terms-----30
calculation of a1
a1=4n+1=4*1+1=5
calculation of an
a30=4*30+1=121
S30=(a1+a30)*30/2
S30=(5+121)*30/2=1890
<span>The sum of first
30 terms is 1890</span>
Find the gradient:
m = y2-y1 / x2-x1
m = 6-(-4) / 0-1
m = 10 / -1
m = -10
Slope intercept form:
y = mx + c
Input the values from one of the points to find c (imputing (1,-4) to y=mx+c):
-4 = -10(1) + c
-4 = -10 + c
c = -4 + 10
c = 6
Therefore, the equation is:
y = -10x + 6