Working alone, Darryl can mop a warehouse in 11 hours. Elisa can mop the same warehouse in 9
1 answer:
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where
The vectors would be orthogonal if the dot product had been zero, but that's clearly not the case.
They would be parallel if the angle turned out to be
So the answer is neither.
Both terms have a 
in common, so we can pull it out. The factored form will be times whatever is left after pulling it out.
In the first term, we will have just 8 left since everything else in the term is factored out.
The second term has a
left. Notice that both of these terms no longer have a negative sign since the negative was factored out.
The answer is
In the first term, we will have just 8 left since everything else in the term is factored out.
The second term has a
The answer is