the volume of the cube is: 512 cubic feet
Step-by-step explanation:
Given
Length = l = 8 feet
The formula for the volume of a cube is given by:
In case of a cube, the length, width and height are equal so the volume will be:
Putting l = 8
Hence,
the volume of the cube is: 512 cubic feet
Keywords: Volume, cube
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According to the graph, the ships’ paths do not meet at any point.
<h3>What are linear equations?</h3>Linear equations are equations that have constant average rates of change, slope or gradient
<h3>How to determine the point where the two ships' path meet?</h3>A system of linear equations is a collection of at least two linear equations.
In this case, the system of equations is given as
2x = 5y - 40
-4x + 10y = 20
Make y the subject in the second equation, by adding 4x to both sides of the equation
4x -4x + 10y = 20 + 4x
This gives
10y = 20 + 4x
Divide both sides by 10
y = 2 + 0.4x
Substitute y = 2 + 0.4x in 2x = 5y - 40
2x = 5(2 + 0.4x) - 40
Expand
2x = 10 + 2x - 40
Subtract 2x from both sides of the equation.
2x - 2x = 10 + 2x - 2x - 40
Evaluate the like terms
0 = 10 - 40
Evaluate the like terms
0 = -30
The above equation is not true.
This means that the ships’ paths do not meet at any point.
This can be confirmed using the attached graph.
From the graph, we can see that the lines of 2x = 5y - 40 and -4x + 10y = 20 do not intersect
Hence, we can conclude that the ships’ paths do not meet at any point.
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