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Leni [432]
3 years ago
13

1. A soccer field has an area (A = LW) that is represented by the polynomial 1 point

Mathematics
1 answer:
matrenka [14]3 years ago
6 0

Answer:

(x + 6)(x - 6)

Step-by-step explanation:

Given

See attachment for soccer field

Required

The possible dimension of the field

From the attachment, we have:

Area = x^2 - 36

Length = x +a

Width = x + b

So, we have:

Length * Width = Area

This gives:

(x + a)(x + b) = x^2 - 36

Express 36 as 6^2

(x + a)(x + b) = x^2 - 6^2

Express as difference of two squares

(x + a)(x + b) = (x + 6)(x - 6)

Hence, the dimension is: (x + 6)(x - 6)

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Seth has a garden with dimensions 9 feet long times 8 feet wide he wants to enlarge the garden to an area of 120 ft.² how much f
ziro4ka [17]

Answer:

6 ft longer (total length of 15ft)

Step-by-step explanation:

the initial dimensions are:

length: l=9ft

width: w=8ft

the area area of the garden is given by:

a=l*w

so the original area is:

a=9ft*8ft=72ft^2

Since we need the area to be 120ft^2, and we can only change the length, the width will still be 8ft.

We substitute the value of the new area and the width to the equation for the area:

a=l*w\\120ft^2=l*8ft

and we clear for the new length:

l=\frac{120ft^2}{8ft}\\ \\l=15

The length of the garden for the area to be 120ft^2, must be 15ft.

This means that if originally the length was 9 ft, now it has to be 6 ft longer.

5 0
3 years ago
Contains the origin and is parallel to the line 8x − 3y = 3
Licemer1 [7]

Answer:

y=(8/3)x

Step-by-step explanation:

First, we make 8x-3y=3 into the form y=mx+b

3y=8x-3

y=(8/3)x-1

For an equation to be parallel to this equation, the slope must be the same, so the new equation will be:

y=(8/3)x+b

We know that (0,0) is a point in this line. We plug (0,0) into the equation to find b:

0=(8/3)*0+b

b=0

y=(8/3)x

6 0
3 years ago
Will mark brainly! 20 points please hurry and help!!
Nata [24]
The correct answer is number one, number four, and number five. Please park Brainliest if helpful. Thanks
6 0
3 years ago
If YX=3x-4 and MO=9x-20, then MO=? {Diagram not necessarily drawn to scale.} *
Sveta_85 [38]

Answer:

Step-by-step explanation:

I assume that XY is midsegment of a triangle, then MO = 2 XY

9x - 20 = 2( 3x - 4 )

9x - 20 = 6x - 8

3x = 12

x = 4

MO = 9(4) - 20 = 16 units

8 0
3 years ago
Evaluate the expression: –(31 + 2) + 72 – (–5)2.
Rudiy27

Answer:

 14

Step-by-step explanation:

Order of operations rules require that we do any work inside parentheses first.  Thus,

–(31 + 2) + 72 – (–5)^2

becomes:

     -33    + 72 -  25, or

               14

Important:  Please use " ^ " to denote exponentiation; (-5)2 is incorrect, whereas (-5)^2 or (-5)² is correct.

4 0
3 years ago
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