Since -5 and -5 are the same number, they are on the same y axis so the only distance we need to calculate is between the X coordinates.
When looking for distance, you can not have a negative. what |-3|+|9| is looking for is the distance from 0 on the X axis. since distance can't be negative, (you go 3 miles away from your house in one direction, vs 3 miles in the opposite. both ways is positive, even with opposite directions. same with axis, it doesnt matter which way, only the number.) you need the absolute value of -3 to get the distance from the 0 on the x axis. 
short version: distance is positive, and its adding the distances from the x axis to get distance from each other
        
                    
             
        
        
        
Answer:

General Formulas and Concepts:
<u>Pre-Algebra</u>
Order of Operations: BPEMDAS
- Brackets
- Parenthesis
- Exponents
- Multiplication
- Division
- Addition
- Subtraction
Equality Properties
- Multiplication Property of Equality
- Division Property of Equality
- Addition Property of Equality
- Subtraction Property of Equality
<u>Algebra I</u>
- Functions
- Function Notation
- Coordinates (x, y)
<u>Calculus</u>
Derivatives
Derivative Notation
Antiderivatives - Integrals
Integration Constant C
Integration Rule [Reverse Power Rule]:                                                                   
Integration Property [Multiplied Constant]:                                                             
Step-by-step explanation:
<u>Step 1: Define</u>
<em>Identify</em>
Point (0, 18)

<u>Step 2: Find General Solution</u>
<em>Use integration</em>
- [Derivative] Rewrite:                                                                                          
- [Equality Property] Integrate both sides:                                                         
- [Left Integral] Integrate [Integration Rule - Reverse Power Rule]:                  
- [Right Integral] Rewrite [Integration Property - Multiplied Constant]:            
- [Right Integral] Integrate [Integration Rule - Reverse Power Rule]:               
- Multiply:                                                                                                              
<u>Step 3: Find Particular Solution</u>
- Substitute in point [Function]:                                                                          
- Simplify:                                                                                                              
- Add:                                                                                                                    
- Rewrite:                                                                                                              
- Substitute in <em>C</em> [Function]:                                                                                 
Topic: AP Calculus AB/BC (Calculus I/II)
Unit: Integration
Book: College Calculus 10e
 
        
             
        
        
        
Answer:
y = 5 e^r * t
Let y be the population in billions and t the value of elapsed years
7 =   5 e^r * t  is the equation being used where  t = 15
7/5 = e^r * t 
ln 7/5 = r * t     taking ln of both sides
r = .336 / 15 = .0224
y = 5 e^(.0224 t)    is then our equation
Check  - suppose you want y at 2020
y = 5 e^(.0224 * 20)    would be the equation
y = 5 e^.449 = 7.83  billion - seems to be a reasonable answer
 
        
                    
             
        
        
        
Answer:
We are given an area and three different widths and we need to determine the corresponding length and perimeter.  
The first width that is provided is 4 yards and to get an area of 100 we need to multiply it by 25 yards.  This would mean that our length is 25 yards and our perimeter would be 2(l + w) which is 2(25 + 4) = 58 yards.
The second width that is given is 5 yards and in order to get an area of 100 yards we need to multiply by 20 yards.  This would mean that our length is 20 yards and our perimeter would be 2(l + w) which is 2(20 + 5) = 50 yards.
The final width that is given is 10 yards and in order to get an area of 100 yards we need to multiply by 10.  This would mean that our length is 10 yards and our perimeter would be 2(l + w) which is 2(10 + 10) = 40 yards.
Therefore the field that would require the least amount of fencing (the smallest perimeter) is option C, field #3.
<u><em>Hope this helps!</em></u>
 
        
                    
             
        
        
        
Answer:
you just need to simplify all the answers so 9 and 4 - 6 + 2 + 3 you need to keep like adding all the answers together and whatever one gets you to what it's telling you then that's the answer
Step-by-step explanation:
I'm sorry if this doesn't make sense but I hope it helps