Five. 7-2 is five. you are welcome lol
Answer:
r = 2
Step-by-step explanation:
= 4r-4
square root both sides
r = 4r-4
r = 2r-2
2r-r = 2
r = 2
Answer:
or
Step-by-step explanation:
Let:
Given
Solving (a): The polynomial for the volume in terms of height
Volume (V) is calculated using:
Expand
Open brackets
Rewrite as:
Solving (b): The dimensions when Volume = 180
Substitute 180 for V in:
Rewrite as:
Factorize:
Express as difference of two squares
This gives:
Since the height can not be negative, then H = 5 or H = 6
Recall that:
When H = 5
When H = 6
Hence, the dimensions of the box are:
or
So,
4x + 1 = 5 + 2(2x - 4)
4x + 1 = 5 + 4x - 8
4x + 1 = 4x - 3
1 = -3 FALSE
There are ZERO solutions to this equation.
S = { }
Answer:
Step-by-step explanation:
h
=
3
V
π
r
2
I think?