Answer:
25n
Step-by-step explanation:
It gives us the answer, we just have to simplify it. The problem says that "5n + 20n shows the total amount of money" and we are <em>looking</em> for an expression that shows the total amount of money.
5n + 20n = 25n
Have a nice day!
I hope this is what you are looking for, but if not - comment! I will edit and update my answer accordingly.
- Heather
Answer:
-2
Step-by-step explanation:
f(-6)=x^2+8x+10
f=(-6)^2+8(-6)+10
f=36-48+10
f(-6)=-2
Answer:
<em>(a) x=2, y=-1</em>
<em>(b) x=2, y=2</em>
<em>(c)</em> 
<em>(d) x=-2, y=-7</em>
Step-by-step explanation:
<u>Cramer's Rule</u>
It's a predetermined sequence of steps to solve a system of equations. It's a preferred technique to be implemented in automatic digital solutions because it's easy to structure and generalize.
It uses the concept of determinants, as explained below. Suppose we have a 2x2 system of equations like:

We call the determinant of the system

We also define:

And

The solution for x and y is


(a) The system to solve is

Calculating:





The solution is x=2, y=-1
(b) The system to solve is

Calculating:





The solution is x=2, y=2
(c) The system to solve is

Calculating:





The solution is

(d) The system to solve is

Calculating:





The solution is x=-2, y=-7
Answer:
It's alternate exterior
Step-by-step explanation:
Interior:means its on the inside
Exterior:means on the outside
Answer:
171
Step-by-step explanation:
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