PLEASE HELP ME! (80 POINTS UP FOR GRABS!!)
2 answers:
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That's the distance formula, which is the Pythagorean Theorem applied to the points.
The distance between (a,b) and (c,d) is
a-c is the signed distance in the x direction between the points. b-d is the signed distance in the y direction between the points. Since the axes are perpendicular, these make a right triangle whose hypotenuse is the distance between the points.
Here that just means our distance is
Answer: B 4.1 units
we have the numbers
we know that
The sum of a number and its additive inverse is 0
so
therefore
the number n is equal to
the sum is equal to zero
the answer Part a) and Part b) in the attached figure
