8-3x2 help with homework
2 answers:
Solution: The value of the given expression is 2.
Explanation:
The given expression is .
To solve an expression we have a rule which is named as BODMAS. The rule defines that which operation we will apply first.
B=Brackets, O=Order, D=Divide, M=Multiplication, A=Addition and S=Subtraction.
For the given expression first we will multiply 3 and 2, after that we wil subtract the result from 8.
Therefore, the value of the given expression is 2.
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Answer:
Step-by-step explanation:
We are given that curves y= is rotated about x=4 .
Given that y=0 and x=2
We have to find the volume V generated by rotating the region bounded by the curves with the help of method of cylindrical shells.
First we find the intersection point
Substitute y=0 then we get
0=
x=0
Hence, x changes from 0 to 2.
Radius =4-x
Height of cylinder =y=
Surface area of cylinder =
Volume V generated by the rotating curves
=
V=
V=
V=
V=
Hence, the volume V generated by rotating the region by the given curves about x =4=.