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lapo4ka [179]
2 years ago
15

Solve the following radical equation. √2x-3 =2

Mathematics
2 answers:
bazaltina [42]2 years ago
7 0

3.5

Step-by-step explanation:

square means 1/2.so,1/2(2x-3)=(2)^2

then square cancel by square. 2x-3=4

2x=4+3, 2x=7then divided by 2.

x=3,5

Nimfa-mama [501]2 years ago
6 0

Answer:

First, we have to add 3 to both sides.
\sqrt{2x} - 3 + 3 = 2 + 3

Then we simplify the equation,
\sqrt{2x} = 5

Divide both sides of the equation by \sqrt{2}
\frac{\sqrt{2x} }{\sqrt{2}} = \frac{5}{\sqrt{2}}

Finally, simplify.
x = \frac{5\sqrt{2}}{2}

Therefore, our answer is x = \frac{5\sqrt{2}}{2}

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What percent of $5x$ is equal to $x/5$?
amm1812

Answer:

4%

Step-by-step explanation:

Let y% of 5x is equal to \frac{x}{5}.

y\% \: of \: 5x =  \frac{x}{5}  \\  \\  \therefore \:  \frac{y}{100}  \times 5x =  \frac{x}{5}  \\  \\ \therefore \:  y =  \frac{x}{5 \times 5x}  \times 100 \\  \\ \therefore \:  y =  \frac{1}{25}  \times 100 \\  \\ \therefore \:  y = 4 \\  \\  \therefore \: 4\% \: of \: 5x \:  is \: equal \: to \:  \frac{x}{5}

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6 0
3 years ago
Geometry area question. Please help!
timurjin [86]
You can calculate polygon area with only apothem OR side length.

apothem only
area = apothem^2 * 6 * tan (180/6)
area = 10.4^2 * 6 * 0.57735
area = 108.16 * <span> <span> <span> 3.4641 </span> </span> </span>
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side length only
area = 6 * 12^2 * / 4*tan(30)
area = 864 / 4 * 0.57735
area = 864 / <span> <span> <span> 2.3094 </span> </span> </span>
area = <span> <span> <span> 374.1231488698 </span> </span> </span> square yards

If apothem and side length were given with more precision, the answers would be closer.

Source:
http://www.1728.org/polygon.htm


5 0
3 years ago
Write an equivalent expression in expanded form. -1/4(-8x+12)
Eva8 [605]

Answer:

2x - 3

Step-by-step explanation:

The Distributive Property of Multiplication applies here.  Multiply each of the two terms inside parentheses by-1/4:  2x - 3

8 0
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