The perimeter of a rectangular pool = 2l + 2w
If the width is 5m longer than the length,
Then Perimeter = 2(l + 5) + 2l
= 4l + 10 {THE EQUATION}
Since Perimeter = 58 m
Then 4l + 10 = 58 m
⇒ l = 12 m
Thus the Length of the Pool = 12 m
Answer: Since her art and music sections each only had half the number of sheets of paper as a core subject, together the two sections had the same amount of paper as a core subject. Therefore, it is almost like her notebook had five core subjects, rather than four core subjects and two electives. If she divided the 200 sheets equally among the five core subjects, there would be 200 ÷ 5 = 40 sheets in each section. Now we can see that art would actually have half of this amount, or 20 sheets of paper.
A= 0
B= -8
C= -64
I learned how to do math and that is correct
Greetings.
The range is the set of y-value.
The range starts from the minimum point to maximum point.
Our minimum point starts at 0 and maximum point starts less than infinity.
Therefore the range is 0<=y<+inf
However, we do not often write that, although it is right.
Therefore we write as y≥0
Thus, the answer is B choice.
