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Galina-37 [17]
3 years ago
6

The side length of a square is represented by the expression 2x + 5. Which expression represents the difference between the area

of the square and the perimeter of the square?
Mathematics
1 answer:
musickatia [10]3 years ago
7 0

Answer:

4x^2 + 22x + 15

Step-by-step explanation:

The side length of a square is represented by the expression 2x + 5.

The area of a square is given as:

A = a^2

where a = length of side of the square

The area of the square is therefore:

A = (2x + 5)^2\\\\A = (2x + 5)(2x + 5)\\\\A = 4x^2 + 20x + 25

The perimeter of a square is given as:

P = 4a

The perimeter of the square is therefore:

P = 4(2x + 5) \\\\P = 8x + 10

The difference between the area of the square and the perimeter of the square is:

4x^2 + 30x + 25 - (8x + 10)\\\\4x^2 + 30x + 25 - 8x - 10\\\\4x^2 + 30x - 8x + 25 -10\\\\4x^2 + 22x + 15

The expression that represents the difference between the area and the perimeter of the square is:

4x^2 + 22x + 15

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LenKa [72]

Answer:

80n - 64p + 72

Step-by-step explanation:

8(10n) + 8(-8p) + 8(9)

80n - 64p + 72

8 0
3 years ago
Express .05 as a fraction in similest form
Alja [10]

0.05 = 5% = 5/100

Simplify 5/100 and you get 1/20.


Hope this helps & good luck. :)

5 0
3 years ago
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Solve by substitution or elimination;<br><br> x+2y=-1<br> x-y=5
Strike441 [17]
I would love to use substitution (It is simplier that way I guess)

solve your system of equations.

x+2y=−1;x−y=5

Solve x+2y=−1 for x:

x+2y+−2y=−1+−2y(Add -2y to both sides)

x=−2y−1

Substitute (−2y−1) for x in x−y=5:

x−y=5

−2y−1−y=5

−3y−1=5(Simplify both sides of the equation)

−3y−1+1=5+1(Add 1 to both sides)

−3y=6

−3y/−3 = 6/−3(Divide both sides by -3)

y=−2

Substitute (−2) for y in x=−2y−1:

x=−2y−1

x=(−2)(−2)−1

x=3(Simplify both sides of the equation)

So the answer is (x = 3 and y = -2)

7 0
3 years ago
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PLEASE HELP<br> how can you simplify 208/1000??
dsp73
The answer is 26/125.
7 0
3 years ago
SOMEONE HELP ME DO THESE 4 PROBLEMS FOR 50 points and BRAINLIEST.
Norma-Jean [14]

Answer:

Step-by-step explanation:

2. 24^2+7^2 = 625

V 625 = 25

3. 6^2 + 5^2 = 25 +36 = 61

V 61  =7.81024967 =7.8

4. 4^2 +9^2 = 97

V 97= 9.84885780 = 9.8

5. 2^2 +3^2 = 13

V 13 =3.60555127 =3.6

and done!

3 0
3 years ago
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