I've asked this before but I haven't gotten an answer how I need it :( I need to use the deffinition of the derivative to solve
this and it's getting complicated and I'm not exactly sure what to do. Anybody who knows how to solve it in that manner can you please help me
1 answer:
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Answer:
The length is 9.
The width is 7.
Step-by-step explanation:
A rectangle has two dimensions.
The width, which is the distance between the points who have the same value of y.
The length, which is the distance between the points who have the same value of x.
Distance between 2 points:
Points (a,b) and (c,d).
Same value of x:
(-1,1), (-1-8) or (6,1), (6,-8)
The distance for both of them is the same, can calculate for only one.
The length is 9.
Same value of y:
(-1,1), (6,1) or (6,-8), (-1,-8)
The width is 7.
<h3>Answer: Choice C) Real, Rational</h3>
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Explanation:
Any number you'll encounter so far in your math course will be a real number. This is until you get to something like which is a complex number, but your teacher may not have covered that chapter yet.
Anyways, -5 is a real number because we aren't taking the square root of a negative or anything like that.
-5 is also an integer, but that choice isn't listed. The set of integers is any positive or negative whole numbers, including 0 as well.
Furthermore, -5 is considered rational because -5 = -5/1. We can write -5 as a fraction of two integers where 0 is not in the denominator. With -5 being rational, it cannot be irrational. The term "irrational" means "not rational".