Answer:
Step-by-step explanation:
The graph is represented graphically by drawing a point for each vertex and drawing an arc between two vertices if they are joined by an edge. If the graph is directed then...
20:8, 130:52, 40:16, 190:76
Answer:
For me I think it is a number 3
Step-by-step explanation:
Y = -3
y = 7x - 10
-3 = 7x - 10
+10 +10
7 = 7x
x = 1
Answer: y = -3 and x = 1
or
(1,-3)
So let's look at how to expand a binomial..
Start with just the variable exponents which will be numbered in ascending and descending order.
example (without coefficients)
(x+y)^3 = x^3(y^0) + x^2(y^1) + x^1(y^2) + x^0(y^3)
If the binomial is (x-y)^3 the +/- signs will toggle like so.. (again leaving out coefficients)
(x-y)^3 = x^3(y^0) - x^2(y^1) + x^1(y^2) - x^0(y^3)
If there is a coefficient or power inside the binomial like (x^2+2y)^3 these are also raised to the appropriate power.
(x^2+2y)^3 = (x^2)^3(y^0)(2^0) + (x^2)^2(y^1)(2^1) + ....
now there are also coefficients for each term which follow a combination pattern of Pascal triangle. C(3,0) ; C(3,1) ; C(3,2) ; C(3,3)
these get multiplied by each term.
So the 4th term of (x^2-2y)^3
will be negative
have coefficient of: C(3,3) * (2^3) = 8
variables: x^0(y^3) = y^3
= -8y^3
