Answer:
b = 40
Step-by-step explanation:
A heater repairman charges $40 to visit a home, plus $70 per hour for the time he spends on the repair. 
This situation can be described by an equation of the form y=mx+b , where
 x = the time in hours 
y = the cost in dollars. 
What is the value of b in this equation?
A heater repairman charges $40 to visit a home, plus $70 per hour for the time he spends on the repair
Writing the above in an equation =
y = $70 × x + $40
y = 70x + 40
Therefore, the value of b in the expression = 40
 
        
             
        
        
        
Answer:

General Formulas and Concepts:
<u>Calculus</u>
Differentiation
- Derivatives
- Derivative Notation
Basic Power Rule:
- f(x) = cxⁿ
- f’(x) = c·nxⁿ⁻¹
Derivative Rule [Chain Rule]:                                                                                 ![\displaystyle \frac{d}{dx}[f(g(x))] =f'(g(x)) \cdot g'(x)](https://tex.z-dn.net/?f=%5Cdisplaystyle%20%5Cfrac%7Bd%7D%7Bdx%7D%5Bf%28g%28x%29%29%5D%20%3Df%27%28g%28x%29%29%20%5Ccdot%20g%27%28x%29)
Step-by-step explanation:
<u>Step 1: Define</u>
<em>Identify</em>

<u>Step 2: Differentiate</u>
- Logarithmic Differentiation [Derivative Rule - Chain Rule]:                        
- Trigonometric Differentiation [Derivative Rule - Chain Rule]:                    
- Basic Power Rule:                                                                                          
- Rewrite [Trigonometric Identities]:                                                               
Topic: AP Calculus AB/BC (Calculus I/I + II)
Unit: Differentiation
 
        
             
        
        
        
Question:
Jordan is cutting a 2 meter by  meter piece of rectangular paper into two pieces along its diagonal. what is the area of each of the pieces?
 meter piece of rectangular paper into two pieces along its diagonal. what is the area of each of the pieces?
Answer:
Area of each piece of paper is  .
.
Solution:
Length of the paper = 2 m
Width of the paper =   m =
 m =   m
 m
<em>Area of the rectangle = length × width</em>
                                     
                                      
 
<em>Diagonal of a rectangle divides it into two equal parts.</em>
Area of each piece = Area of the rectangle ÷ 2
                                 
                                 
                                 
Area of each piece of paper is  .
.
 
        
             
        
        
        
552.17 rounds to 550
48.35 rounds to 50 
550-50=500
        
             
        
        
        
Answer:
3600 miles on 240 gal
Step-by-step explanation:
80 gal can go 1200
160 gal can go 2400
240 gal can go 3600