Answer:
Change over initial
(3.24-2.85)/2.85=0.1368
13.68%
Step-by-step explanation:
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Answer:
Step-by-step explanation:
Our approach here is to isolate X, and simplify this solution. We want to begin by subtracting matrix 2, as shown below, from either side - the first step in isolating X. Afterwards we can multiply either side by the inverse of matrix 1, the co - efficient of X, such that X is now isolated. We can then simplify this value.
Given,
: Matrix 1
: Matrix 2
( Subtract Matrix 2 from either side )
( Simplify )
( Substitute )
( Multiply either side by inverse of Matrix 1 )
- let's say that this is Matrix 3. Our solution would hence be Matrix 3.
This is the concept of volumes of solid materials, to get the amount of wax needed to make the candle we will require to calculate for the volume of the candle.
volume=πr^2h
since we are given the circumference of the candle we need to get the radius first;
C=πd
C=31.416 cm
31.416=πd
d=31.416/π
d=10.0000 cm
Therefore the radius will be 5 cm.
The volume of the wax required to make the candle will be:
V=πr^2h
V=π*5^2*13
V=1,021.02 cm^3
W= 35 this is because it is and i need 20 characters i don’t know how to explain but it is 35