Call the length
and the width
We are told:
1. "<span>The length of a rectangle is 3 times its width." i.e.:
2. "</span><span>The rectangle’s width is 4 m." i.e.:
So, by substitution we have:
Then we can use our area formula:
</span>
Answer:
-7, 1
Step-by-step explanation:
The roots of an equation are the answers to the equation, where the graph of the equation intersects the x-axis. One can see that the points at which the graph intersect the x-axis are the following,
(-7, 0) and (1, 0), therefore the roots to the equation are the following;
-7, 1
In 56.6 earth days , it rotates 1 time
so, in 1 earth day , it will rotate
times
now, In a earth year, there are 365 days.
So, in 365 earth days, it will rotate =
Since the perimeter is four times the side, the constraints on the perimeter are immediately translated into constraints on the side:
So, if you divide every term in the inequality by 4, you have
Now simply evaluate the fractions: