Answer:
a) 1
b) 2
c) 2
Step-by-step explanation:
a)
means find the output for
when
.



b)
means find the output for
when 


c) If
and
are truly inverses then
and
as long as
satisfies the domains.
So we should be able to conclude that
with no work.
However, I will also show work.

since
from part a.
since
from part b.
Given:
The volume of a prism with equilateral triangular cross-section is 270cm³.
Length of the prism =
cm
To find:
The length of the side of the equilateral triangular cross-section.
Solution:
Formulae used:
Area of an equilateral triangle is

Where a is the side length of equilateral triangle.
Volume of prism is

Where, B is base area and h is the height of the triangular prism.
Cross section of the prism is an equilateral triangular so the base area of the prism is
sq. cm.
The volume of the prism is




Divide both sides by 7.5.




It takes only positive value because the side cannot be negative.
Therefore, the length of the side of the equilateral triangular cross-section is 6 cm.
36 :))) 4 x 3 = 12... 6 x 3 = 18 x 2 = 36!!
Hope this helps!!
We have been given that target sells a pack of iTunes gift cards for $40. Sam's Club sells them for $38.88. We are asked to find the percent decrease from Target's price to Sam's Club's price.
We will use percent decrease formula to solve our given problem.






Therefore, the percent decrease from Target's price to Sam's Club's price is 2.8%.
There are two ways for finding p, here is one way:
1/2 = 4p
Multiply both sides by 2:
1 = 8p
Divide both sides by 8:
0.125 = p
Answer:
p = 0.125
Hope it helped :)