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Fynjy0 [20]
3 years ago
5

iddle" class="latex-formula">
​
Mathematics
1 answer:
True [87]3 years ago
7 0

Answer:

2

Step-by-step explanation:

The square root of 2 is 1 and 1 multpied by 2 = 1

2\sqrt{2} \\2(1)=2

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Find the square. (1/4A + 1/4B)^2<br><br> a) 1/16A^2 + 1/8AB + 1/16B^2<br> b) 1/4A^2 + 1/8AB + 1/4B^2
alisha [4.7K]

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

(\dfrac{1}{4}A + \dfrac{1}{4}B)^2 =

= \dfrac{1}{16}A^2 + \dfrac{1}{8}AB + \dfrac{1}{16}B^2

Answer: A.

Another way to solve by factoring 1/4.

(\dfrac{1}{4}A + \dfrac{1}{4}B)^2 =

= [\dfrac{1}{4}(A + B)]^2

= (\dfrac{1}{4})^2(A + B)^2

= \dfrac{1}{16}(A^2 + 2AB + B^2)

= \dfrac{1}{16}A^2 + \dfrac{1}{16}2AB + \dfrac{1}{16}B)^2

= \dfrac{1}{16}A^2 + \dfrac{1}{8}AB + \dfrac{1}{16}B)^2

6 0
3 years ago
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The speed of sound in air is 340 m/s. How far , in meters, would a sound of wave travel on 7 seconds?​
Rasek [7]

Answer:

2 380m

Step-by-step explanation:

very simple just multiply 7×340

4 0
2 years ago
The figure below shows a shaded region and a non-shaded region. Angles in the figure that appear to be right angles are right an
Naddika [18.5K]

Answer:

the shaded area is 26, the non-shaded area 16

Step-by-step explanation:

The red shaded lines had numbers as well so I add all of them up.

The non-shaded lines didn't have a number, but the bottom had the same length of the top line so therefore your answer is 26 for Shaded, and 16 for non-shaded.

3 0
3 years ago
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I need help with one more of these.
nataly862011 [7]
I think it is yz but I and not completely sure
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A store manager receives a delivery of 2 boxes of light bulbs.Each box contains 25 lightbulbs.The store manager tests all the li
kolezko [41]

Answer:

Step-by-step explanation:

A delivery of 4 boxes will contain 2 more defective lightbulbs than a delivery of 2 boxes.

7 0
3 years ago
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