Assignment
active
determining the final cost of an item
the tax rate as a percent, r, charged on an item can be determined using the formula - 1 =
r, where c is the final cost of the item and p is the price of the item before tax. louise rewrites
the equation to solve for the final cost of the item: c = p(1 + r). what is the final cost of a $40
item after an 8% tax is applied?

$43.20

Step-by-step explanation:

We use the formula for the final cost of the item:

where r is the percent tax rate in decimal form (8% therefore translates as 0.08 for our case)

Therefore the final cost of the item is $43.20

ummm seems that u didnt post the attachement !

arc length = 6.63311 ft.

step-by-step explanation:

the formula the arc measure is:

arc length s=2πr(c)/360

where:

c   is the central angle of the arc in degrees

r   is the radius of the arc

π   is pi, approximately 3.142

using the above formula we get

s =

thus we find that arc length of an arc for a circle of radius 20 feet and central angle 19 degrees is

6.63311 feet