Answer:
The slope of FG is -1
Step-by-step explanation:
Given
Square EFGH
EF: 
Required
Determine the slope of FG
First, we calculate the slope of EF

Make y the subject


The general equation has the form: 
Where

Compare
to 

<em>From the name of the square EFGH, we can conclude that EF and FG are perpendicular</em>
<em />
The relationship between perpendicular lines is:

Where
-- Slope of EF
and
m2 = slope of FG
Substitute 1 for m1 in 


<em>Hence, the slope of FG is -1</em>
Answer:
15=2p+3
Step-by-step explanation:
The expression for the perimeter is P = 12x - 16
<h3>How to write an expression for the perimeter?</h3>
The given parameters are
Length = 3x + 1
Width = 3x - 9
The perimeter is calculated as
P = 2 * (Width + Length)
So, we have
P = 2 * (3x + 1 + 3x - 9)
Evaluate
P = 2* (6x - 8)
Expand
P = 12x - 16
Hence, the expression for the perimeter is P = 12x - 16
Read more about perimeter at:
brainly.com/question/19819849
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The correct answer is D, because the first step in the expression is finding the difference of 3x and 4. Then, you square it, and finally, multiply it by 5 (finding the product. I hope this helped!
Step-by-step explanation:
i think its the first onne not sure