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2 years ago

I'm gonna cry I don't get this

Mathematics

2 answers:

snow_tiger [21]2 years ago

6 0

Answer:

d=14

Step-by-step explanation:

Divide both sides by the numeric factor on the left side, then solve.

so the answer is d=14

Vsevolod [243]2 years ago

5 0

Answer:

d = 14

Step-by-step explanation:

So what we need to do is divide each term in 3(d+8) = 66 by 3

3(d+8) / 3 = 66 / 3

this cancels the 3 on the left side and then we are left with

d+8 = 22

now we need to get D by itself by subtracting 8 by both sides.

d+8-8 = 22 - 8

D = 14

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If the length of diagonal of a square is 4√2 cm, find it's length, perimeter and area.

Sonbull [250]

Answer:

As Per Provided Information

Length of diagonal of square is 4√2 cm

We have been asked to find the length , perimeter and area of square .

First let's calculate the side of square .

Using Formulae

$\boxed{\bf \:Diagonal_{(Square)} \: = side \sqrt{2}}$

On substituting the value in above formula we obtain

$\qquad\longrightarrow\sf \:4 \sqrt{2} = side \sqrt{2} \\ \\ \\ \qquad\longrightarrow\sf \:4 \cancel{\sqrt{2}} = side \cancel{ \sqrt{2}} \\ \\ \\ \qquad\longrightarrow\sf \:side \: = 4 \: cm$

Therefore,

Length of its side is 4 cm.

Finding the perimeter of square.

$\boxed{\bf \: Perimeter_{(Square)} = 4 \times side}$

Substituting the value we obtain

$\qquad\longrightarrow\sf \:Perimeter_{(Square)} \: = 4 \times 4 \\ \\ \\ \qquad\longrightarrow\sf \:Perimeter_{(Square)} = 16 \: cm$

Therefore,

Perimeter of square is 16 cm .

Finding the area of square .

$\boxed{\bf \: Area_{(Square)} = {side}^{2}}$

Substituting the value we get

$\qquad\longrightarrow\sf \:Area_{(Square)} \: = {4}^{2} \\ \\ \\ \qquad\longrightarrow\sf \:Area_{(Square)} = 16 \: {cm}^{2}$

Therefore,

Area of square is 16 cm².

3 0

2 years ago

Help needed asap! Must be answered using interval notation!

Elina [12.6K]

In this case, we have a colored dot at -1 and a white dot at 3, then the interval notation for that graphed interval will be:

[-1, 3).

<h3>How to write the interval of values in the graph using interval notation?</h3>

First, remember that the symbols ( and ) are used for ends that do not belong to the interval.

For example, if our interval is 1 < x < 2

1 and 2 do not belong to the solution interval, thus, the solution interval is (1, 2).

While [ and ] are used when the ends belong. For example, in:

1 ≤ x ≤ 2

The interval notation is [1, 2]

And in:

1 < x ≤ 2

(1, 2]

And so on.

On the number line, the notation is:

Colored dot: the point belongs to the interval.
White dot: the point does not belong to the interval.

In this case, we have a colored dot at -1 and a white dot at 3, then the interval notation for that graphed interval will be:

[-1, 3).

If you want to learn more about interval notation.

brainly.com/question/26025356

#SPJ1

4 0

1 year ago

Find the perimeter of the figure below. Notice that one side length is not even.

Alecsey [184]

The answer is 46. the side length that is not even is 5ft because if you do the 13 - 8 you will get the missing side.

8 0

2 years ago

1.94x - 10/8x + 4.32 = [2(1.15x+8.5)]

kipiarov [429]

$1,94x-\frac{10}{8}x+4,32=[2(1,15x+8,5)]\\\\
1,94x-1,25x+4,32=2,3x+17\\\\
0,69x+4,32=2,3x+17\ \ \ |Subtract\ 2,3x\\\\
-1,61x+4,32=17\ \ \ |Subtract\ 4,32\\\\
-1,61x=12,68\ \ \ |Divide\ by\ -1,61\\\\\boxed{x\approx7,9}
$

8 0

3 years ago

sorry again for asking this but can someone explain this and give me the answer. Been having a hard time learning this.

Rudik [331]

Hey!!!

In question no.4, we have to subtract the equation.

In question no.5 we have to add the equation.

Hope it will help you...

<h3>Have a great day</h3>

3 0

2 years ago

I'm gonna cry I don't get this​

I'm gonna cry I don't get this