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Mrrafil [7]
3 years ago
7

A carpet is in the shape of a rectangle 6 metres by 4 metres. Mel wants to put tape all around the edges of the carpet. Work out

the total length of tape Mel needs.
Mathematics
1 answer:
Oxana [17]3 years ago
5 0
Perimeter = length + length + width + width
6 + 6 + 4 + 4 = 20 metres
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What is the distance between (–5, –2) and (–5, –8)?
steposvetlana [31]

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may be its -6 units

Step-by-step explanation:

because if you count the number it will be-6

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Solve this problem. -16r=272
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-17

Step-by-step explanation:

-16r=272

16r=-272

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If you increase your current quality score of 85% by 7% you will have a score of what ?
amm1812
The answer is 90.95 percent

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Find the slope between the pair of points (1,3) and (7,2)
agasfer [191]

Answer:

             \bold{m=-\dfrac16}

Step-by-step explanation:

\bold{slope\, (m)=\dfrac{change\ in\ Y}{change\ in\ X}=\dfrac{y_2-y_1}{x_2-x_1}}

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(7, 2)    ⇒   x₂ = 7,  y₂ = 2

So the slope:

                    \bold{m=\dfrac{2-3}{7-1}=\dfrac{-1}6=-\dfrac16}

5 0
3 years ago
Amber, Bernie, and Carlos are working on a problem together. Their goal is to correctly apply the difference of cubes formula to
NeX [460]

Answer: Carlos is correct

Step-by-step explanation:

2x^5-250x^2

The first step is to factorize out 2x^2

2x^2(x^3-125)

This can be rewritten as

2x^2(x^3-5^3),

Recall, difference if cube (a^3-b^3)

= (a-b)(a^2 +ab + b^2)

from our equation,

a= x

b = 5.

So the difference of cubes will be

2x^2[(x-5) (x^2 + 5x + 5^2)]

=2x^2[(x-5) (x^2 + 5x + 25)]

Carlos followed these steps. So he is correct. Carlos is correct because he correctly factored the GCF, identified a and b, and applied the difference of cubes method.

Amber is incorrect because 125 is equal to b3, not b.

Bernie is incorrect because x2 is not the GCF of the polynomial. The GCF is 2x^2.

6 0
3 years ago
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