For this case we have the following expressions:
x-3
Y
Adding both expressions we have:
(x-3) + (y)
Rewriting we have:
x - 3 + y
y + x - 3
Answer:
The sum of the quantity x-3 and y is:
y + x - 3
The distance between two points is the number of units between them.
The distance between Q and R is 3.61 units
<em>It is impossible to determine your friend's error, because the steps are not given in the question. So, I will calculate the distance between Q and R, instead.</em>
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The distance (d) between two points is:

So, the distance QR is:


Evaluate exponents


Take square root of 13

Hence, the distance between Q and R is 3.61 units
Read more about distance at:
brainly.com/question/16310813
To prison or to the cemetery
Answer:
The vertex of the parabola is at equal distance between focus and the directrix. If F is the focus of the parabola, V is the vertex and D is the intersection point of the directrix and the axis of symmetry, then V is the midpoint of the line segment ¯FD
Step-by-step explanation:
answer 3rd
1) x = - 4 and y = 8
answer is d. last choice
2) x = 16 y =20
answer is d. last choice
3) x - 6y = -24
so -x + 6y = 24
answer is B. second choice
4) 4.75k + 2.25p = 22
answer is a. first choice
5) last graph.
answer is D.