An outdoor swimming race is 1.6 miles long. Simon swims 8 tenths of the course, and his friend Sheila swims 9 tenths of the cour
1 answer:
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Answer:
A. 12
Step-by-step explanation:
Selecting B, C, or D would create a difference of perfect squares since each of these numbers are perfect squares. Additional factoring would then be needed.
But selecting 12 gives which cannot be factored. It is factored completely.
Answer:
Moses got into the elevator at the 8th floor.
Step-by-step explanation:
Let's call the floor which Moses started at x. Going down decreases the floor number and going up increases the floor number. We then form the equation which is the same as
which means
. Moses got in at the 8th floor.