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2 answers:
Answer: The value of 'n' is 6.
Step-by-step explanation: Given that ΔXWZ is an isosceles triangle, where XZ = n, WZ = 2n - 5, and the perimeter of the triangle is 20 units.
We are to find the value of 'n'.
As given in the figure, in ΔXWZ,
WX = WZ.
So, WX = 2n - 5.
We know that the perimeter of a triangle is equal to the sum of its three sides, so the perimeter of ΔXWZ is given by
According to the question, we have
Thus, the value of 'n' is 6.
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Answer: Hope this explains everything for you!
y= -2x+3
Step-by-step explanation:
y= 2x-1 is wrong
First, we will start by identifying the y-int, the y-int is when x is zero. The y-int is 3 since when x is 0, y is 3, (0,3).
y= 2x+3 (So that means -1 is actually 3)
Plus even if your slope is 2, since from the 2 points you go up 2 and run by 1, if you're not going to calculate it with 2 points, you need to see if its uphill, downhill, etc. (More info in the image below) The slope is actually negative meaning it is -2.
So the equation of the line is actually y= -2x+3
