It’s should be letter b I hope you have a great day
        
                    
             
        
        
        
a) Shawn's error was that he Multiplied 15 by 2x only. He didn't Multiply 15 by 7
b) The difference, in square feet, between the actual area of Shawn’s garden and the area found using his expression is given as 98 square feet
<h3>What is the perimeter?</h3>
The perimeter is defined as the sum of all the sides of the figure. Now we have The area in, square feet, of Shawn’s garden is found be calculating 15(2x + 7). Shawn incorrectly says the area can also be found using the expression 30x + 7.
The correct area =15(2x + 7).
= 30x + 105 square feet
The error in Shawn’s expression is
= 15(2x + 7)
= 30x + 7 square feet
Shawn's error was that he Multiplied 15 by 2x only. He didn't Multiply 15 by 7
The difference, in square feet, between the actual area of Shawn’s garden and the area found using his expression is given as
30x + 105 square feet - 30x + 7 square feet
= 30x + 105 - (30x + 7)
= 30x - 30x + 105 - 7
= 98 square feet
To know more about perimeter follow
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Answer:
Determine whether a relation represents a function.
Find function values.
Determine whether a function is one-to-one.
Use the vertical line test to identify functions.
Graph the functions in the library of functions.
Step-by-step explanation:
 
        
             
        
        
        
The answer is 1.92 x 10^6
        
             
        
        
        
Answer:
12
Step-by-step explanation:
x^2-2x+4  replace -2 for x
-2^2-2(-2)+4
4+4+4
12