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WARRIOR [948]
3 years ago
6

The length of a rectangular sandbox is 4 feet less than its width, which is represented by x. The area is 45 square feet. Which

equation can be used to find the area of this sandbox?
1.x^2+4=45
2.x(x+4)=45
3.x(x-4)=45
4.x(2x+4)=45
Mathematics
1 answer:
Maurinko [17]3 years ago
6 0

Answer:

3

Step-by-step explanation:

w= x

l= x-4

x(x-4) = 45

x^2-4x = 45

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<h2>Question :</h2>

<em>Write the equation of a line that is perpendicular to the given line and that passes through the given point. y=2/3x+9 m (–6, 5)</em>

<h2>Answer :</h2>

<em>y = -3/2x - 4 </em>

<h2>Explanation :</h2>

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•>looking for gradients

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Help me with this problem that I'm stuck on!
jok3333 [9.3K]
                              4/(x+1) = 3/x + 1/15
Should we make common denominators with everything, we get
           4*15*x / [15x(x+1)] = 3*15*(x+1)/[15x(x+1)] + x(x+1)/[15x(x+1)]
Multiply both sides of the equation by the denominator to cancel them
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The answer to this question is that the solutions are x=9 and x=5.
6 0
3 years ago
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