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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.

1 answer:

Oxana [17]3 years ago

5 0

Perimeter = length + length + width + width
6 + 6 + 4 + 4 = 20 metres

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Factor 7d+56<br> I'll give Brainless.....

Lesechka [4]

Answer: 7(d+56)=63d

Step-by-step explanation:

U add the 7 +56 and the answer is 63d plz mark brainly

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2 years ago

PLS HELP ME ASAP I DONT HAVE TIME. IT ALSO DETECTS IF ITs RIGHT OR WRONG.

grin007 [14]

Answer:

It should be 9 m :)

Step-by-step explanation:

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2 years ago

Read 2 more answers

A triangle has vertices at (-4,-6),(3,3), (7,2). Rounded to two decimal places, which of the following is the closest approximat

Cerrena [4.2K]

Answer:

Hey there!

The perimeter of the triangle is the distance around it.

We can find the distance of two points using the distance formula, and add up all the distances to find the total distance.

-4, -6 to 3, 3 is 2

3, 3 to 7, 2 is 5

7, 2 to -4, -6 is about 5.4

2+5+5.39=12.4, which is closest to 12.36.

Let me know if this helps :)

6 0

2 years ago

19. The numerator of a fraction is 1 less than the denominator.

yulyashka [42]

Let the original fraction be

$\dfrac{n-1}{n}$

Now let's increase both numerator and denominator by 2:

$\dfrac{n+1}{n+2}$

This produces a 1/12 increase:

$\dfrac{n+1}{n+2}-\dfrac{n-1}{n}=\dfrac{1}{12}$

The left hand side can be rearranged as

$\dfrac{2}{n^2+2n}=\dfrac{1}{12}$

Invert both sides:

$\dfrac{n^2+2n}{2}=12 \iff n^2+2n=24$

Solve the quadratic equation:

$n^2+2n-24=0 \iff n=-6 \lor n=4$

So, in the first case, the original fraction is

$\dfrac{n-1}{n}=\dfrac{-6-1}{-6}=\dfrac{7}{6}$

In the second case, we have

$\dfrac{n-1}{n}=\dfrac{4-1}{4}=\dfrac{3}{4}$

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3 years ago

What are the x-intercept and the y-intercept of the graph of y=−1/2x−5

Snezhnost [94]

X intercept (-10,0)

y intercept (0,-5)

3 0

2 years ago