Basically they want you to move the variables around so that it matches the standard form which is Ax+By=C.A,B,and C are just coefficients/constants.
so the original equation is
y=x-4
Minus x from both sides to move x to the left hand side.
-x+y=-4
so thats the final answer
Answer:
first, we put them in order
78,[80],83,(85),86,[87],90
Q1 = 80
Q2 (median) = 85
Q3 = 87
Interquartile range (IQR) = Q3 - Q1 = 87 - 80 = 7 <==
Hope this helps!
Answer:
Step-by-step explanation:
When A, B,C are equally likely to be assigned to any one of the stations 1,2 or 3
we find that each one assigned to one station has probability 1/3
Also each person is independent of the other.
Probability that
a) All three family members are assigned to the same station
= P(ABC) to same station
= P(ABC) to 1+P(ABC) to 2 +P(ABC) to 3
=3*P(A)P(B)P(C) since independent
=
b) This would be equivalent to 1- all 3 to the same station
= 
c) Every member to a different station
A has 3 choices while B has remaining 2 and C has 1
Hence prob = 
Sophia’s work factoring a perfect square trinomial is 
Step-by-step explanation:
We have,
16
– 40x + 25
=
- 2(4x)(5) + 
Using the algebraic identity,

=
- 2(4x)(5) + 
≠ (
Thus, Sophia’s work factoring a perfect square trinomial is 