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3 years ago

HELP PLZ!! Ive been o this for days

Mathematics

1 answer:

aleksley [76]3 years ago

8 0

B&D seems to be correct, but as we do not know what operation is the black circle you could argue that none of the above is correct.

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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

Oxana [17]

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

5 0

2 years ago

Pls help! will mark branliest!!! :)

Ket [755]

The area of the house is the amount of space on the house.

The length of the addition is x + 20
The area of the original house is $x^2 + 30x + 200$

<h3>The length of the addition</h3>

The area of the addition is given as:

$Area = x^2 + 10x - 200$

Expand

$Area = x^2 + 20x - 10x - 200$

Factorize

$Area = x(x + 20) - 10(x + 20)$

Factor out x + 20

$Area = (x -10)(x + 20)$

The width of the addition is x - 10.

Hence, the length of the addition is x + 20

<h3>The area of the original house</h3>

The dimension of the original house is

x + 20 by x + 10

So, the area is:

$Area =(x + 20)(x + 10)$

Expand

$Area =x^2 + 20x + 10x + 200$

This gives

$Area =x^2 + 30x + 200$

Hence, the area of the original house is $x^2 + 30x + 200$

Read more about areas at:

brainly.com/question/24487155

8 0

1 year ago

A) 5<br> 11 + 4<br> 3<br> add the following rational number

mel-nik [20]

Step-by-step explanation:

the question is not correct

edit it and I will answer u in comments

5 0

1 year ago

1 1/4 subtracted from its reciprocal is :<br> A -9/20. B - 1/20. C 1/5. D - 1/5

dalvyx [7]

Answer:

Step-by-step explanation:

first we turn ur mixed number into an improper fraction

1 1/4 = 5/4

the reciprocal of 5/4 can be found by just flipping it....so the reciprocal is gonna be 4/5

so 1 1/4 subtracted from its reciprocal is :

4/5 - 5/4 =

16/20 - 25/20 =

- 9/20 <====

7 0

3 years ago

Read 2 more answers

Given: F(x) = 3x2 + 1, G(x) = 2x - 3, H(x) = x<br><br> F(-2) =

Naddik [55]

Answer:

Use the given functions to set up and simplify:

F(−2) and that equals to 13

Step-by-step explanation:

So, therefore, your answer to the problem is 13.

4 0

2 years ago