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Hitman42 [59]
4 years ago
13

Sqr root 8+3 Sqr root 2+ Sqr root 32 simplest form

Mathematics
1 answer:
Kisachek [45]4 years ago
6 0

Answer:

<u>9\sqrt{2} </u>

Step-by-step explanation:

The given question is :

\sqrt{8} +3\sqrt{2} +\sqrt{32}

8 = 4 * 2

32 = 16 * 2

\sqrt{8} =\sqrt{4*2} = 2\sqrt{2} \\\sqrt{32} =\sqrt{16*2} =4\sqrt{2}

∴ \sqrt{8} +3\sqrt{2} +\sqrt{32}

= 2\sqrt{2} +3\sqrt{2} +4\sqrt{2}

= 9\sqrt{2}

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This figure is made up of a rectangle and parallelogram.
ivann1987 [24]

The area of the figure is 40 units. (rounded off from 39.998 units)

Step-by-step explanation:

1. Area of the figure = Area of Rectangle + Area of Parallelogram.

2. Naming points:

Let the rectangle consist of points A(-6,-1), B(-5,-5), C(3,-3) and D(2,1).

Let the parallelogram consist of points C(3,-3), D(2,1), E(2,7) and F(3,3).

3. Each coordinate has a point on the x-axis and a point on the y-axis. We shall refer to these points as x', x'' ,x''' and so on corresponding to the x-axis values of A, B, C and so on in that order till F. For the y-axis points, we will name them in the series of y', y'', y''' and so on.

In simple words, in A(-6,1), x' = -6; y' = -1

4. Formula for finding area:

Area of a rectangle = length (l) × width (w)

Area of a parallelogram = base (b) x height (h)

5. Finding area of the rectangle:

l = AD = \sqrt{[x'''' - x']^{2} - [y'''' - y']^{2}}

, i.e. AD = \sqrt{[2 - (-6)]^{2} - [1 - (-1)]^{2}}

, i.e. AD = √68 = 8.246 (rounded to 3 decimals) = l

Now, w = AB = \sqrt{[x'' - x']^{2} - [y'' - y']^{2}}

, i.e. AB = \sqrt{[(-5) - (-6)]^{2} - [(-5) - (-1)]^{2}}

, i.e. AB = √17 = 4.123 (rounded to 3 decimals) = w

Area of rectangle = l x w = 8.246 x 4.123 = 33.998 units.

6. Finding area of the parallelogram:

b = DE = 6 units (we can observe this from the graph, i.e. points from 1 to 7 on the y axis)

h = Height is the line drawn perpendicular to the base from point F, which as we can see is 1 unit long.

Hence, Area of parallelogram = b x h = 6 x 1 = 6 units.

7. Now, adding both, we can arrive at the final answer.

Area of the figure = Area of rectangle + Area of parallelogram,

i.e. 33.998 units + 6 units = 39.998 units. (can be rounded off to 40 units)

4 0
3 years ago
There are 3 identical wooden blocks with dimensions 30×4×3. If you glue them together, what is the smallest surface area you can
Inga [223]

Answer:

120

Step-by-step explanation:

5 0
3 years ago
4x-5 - 2x-1
3241004551 [841]

Answer:

\frac{5x - 8}{3}

Step-by-step explanation:

Find the LCM of the denominators and then solve:

\frac{4x - 5}{2} - \frac{2x - 1}{6} \\\\

\frac{4x - 5}{2} - \frac{2x - 1}{6} \\\\\frac{3(4x - 5) - 2x - 1}{6} \\\\\frac{12x - 15 - 2x - 1}{6}\\\\\frac{10x - 16}{6}\\\\ \frac{2(5x - 8)}{2 * 3} \\\\ \frac{5x - 8}{3}

4 0
3 years ago
Can anyone help me x55x5x5x56x6x7x7= ?<br><br> this is for my gf
77julia77 [94]

Answer:x 55x5x5x56x6x7x74 4,527,600

3 0
3 years ago
Read 2 more answers
I need some help plsss IL GIVE BRAINLYIST
Elanso [62]

Answer:

notice what it says at the top got to you tube if you need help  

Step-by-step explanation:

The cupons help get the thing for less.

8 0
3 years ago
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