A cone with a volume of 640.23 has a radius of 7. What is the height of the cone?
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You find the slope of the line by using the formula where x1 and y1 is the first point, and x2 and y2 are the second point.
We need to start from the innermost parenthesis and work our way out.
The first parenthesis is . These are not like terms because one involves a variable, while the other is a constant term. Two terms are summable if they involve the same power(s) of the same variable(s).
So, we can take one step outwards, and we arrive to the square brackets. We have
and 2z and -13z are like terms, so we can sum them:
Finally we arrive to the whole expression, which is
Because, again, 5z and 11z were like terms.