Answer:
870
Step-by-step explanation:
Assuming you mean
30
Using the definition
n
= 
where n! = n(n - 1)(n - 2) ..... 3 × 2 × 1
Then
30
=
= 
Cancel the terms 28(27)... on numerator/ denominator, leaving
30
= 30 × 29 = 870
Answer:
its the steepness of two numbers on a graph - measures the steepness of the line. (what a slope is)
y=40x+10
Step-by-step explanation:
y=mx+b
The discriminant of this solution is 76.
Answer:
The missing side is 18 inches
Step-by-step explanation:
Since in the smaller rectangle the sides are 2.5in x 6in and one side for the larger rectangle is given, you can make an equation.

Then you can cross multiply.
2.5x=45
Divide by 2.5 on both sides.
x= 18