Answer:
Step-by-step explanation:
Slope of line passing through (x₁, y₁) and (x₂, y₂) = (y₂-y₁)/(x₂-x₁)
Slope of line passing through (9, 7) and (2, 9) = (9-7)/(2-9) = -2/7
Solution:
<h3>
Step-by-step explanation:</h3>
<h3>1. Apply rule : a(-b) = -ab</h3>
<h3> </h3>
2. Apply radical rule : 
, 
, 
<h3>3.Multiply the numbers : 2 • 5 = 10</h3>
=
<h3>4.Multiply the numbers : - 6 • 3= - 18</h3>
Answer:
-9
Step-by-step explanation:
The in the first expression, y is to the -9'th degree, which means n is -9.
(If there are numbers of similar term multiplied together, the exponents are to be added.)
If is an integer (a whole number), then the expression represents an even number, because even numbers are the multiples of 2. The expressions 2 n − 1 and 2 n + 1 can represent odd numbers, as an odd number is one less, or one more than an even number.
