Length and surface area of a cube with an edge if 60cm
1 answer:
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<h2>Answer:</h2>
-18x^5-204x^4-722x^3-600x^2+672x-128
<h2>Explanation:</h2>There are multiple ways to solve this for example the foil method or the box method. I prefer to do the box method.
First we are going to set it up
After we set it up we have to solve it so first we are going to multiply
We have to add the exponent
Now we have to add them
-18x^5 stays because there is nothing to add to
Now we add the rest
And -128 stays the same
The answer is
-18x^5-204x^4-722x^3-600x^2+672x-128
Answer:
Today: Tuesday, 12th January 2021
21.16 PM
ANSWER
The two lines are perpendicular if
EXPLANATION
Given two lines:
and
We can tell wether these two lines are perpendicular to each other using their slopes.
If the product of their slopes is -1, the then the two line are perpendicular.
For example:
The line
has slope
and the line
has slope
The product of the two slopes is
This implies that:
Therefore the two lines are perpendicular.