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sdas [7]
3 years ago
14

Simplify the expression: √18x^4y^3

Mathematics
2 answers:
Travka [436]3 years ago
7 0

Answer:

3x^2y\sqrt{2\cdot y}

Step-by-step explanation:

We have been given an radical expression. We are asked to simplify our given expression.

\sqrt{18x^4y^3}

We can rewrite terms of our given function as:

\sqrt{18\cdot x^4\cdot y^3}

\sqrt{2\cdot 9\cdot x^4}\cdot y^2\cdot y}

\sqrt{2\cdot 3^2\cdot (x^2)^2\cdot y^2\cdot y}

Using radical rule \sqrt[n]{a^n}=a, we will get:

3x^2y\sqrt{2\cdot y}

Therefore, the simplified form of our given expression would be 3x^2y\sqrt{2\cdot y}.

Marina86 [1]3 years ago
3 0
The answer is 3x^2y <span>√</span>2y.
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9 out of 25 students are home sick with the flu. What percentage of the students are home sick?
Arturiano [62]

Answer:

36%

Step-by-step explanation:

9/25


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as a percent it would be 36%

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3 years ago
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Absolute value /-3/-/-2/=
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Answer:

I think it is 1

Step-by-step explanation:

8 0
3 years ago
Two more than the square of a number is 123 what is the number? Can someone please explain to me how to do this
max2010maxim [7]

Give the number a label.  That can be anything you want.  A lot of people will use 'x' every single time they do a math problem,but there's no reason to do that and it's boring.  Let's call our number ' M ' for 'Mystery number'.  OK ? 

                                             The number . . . M
                       The square of the number . . . M²
Two more than the square of the number . . . M² + 2

You said that this is equal to 123,  so we can write    <u> M² + 2 = 123</u>

That's the equation we have to take and solve for ' M '.

Subtract  2  from each side of the equation, and you have    M² = 121 .

Take the square root of each side:    M = √121 .

The Mystery number is the square root of  121.

If you don't happen to know what that is, then you can use your pocket
calculator, or the calculator that comes with your computer (if you know
how to find it).  They will all tell you that the square root of  121  is  <em>11</em> .

That's a fine and wonderful answer, but technically, it's only half of the
answer.  Any equation that has something squared in it almost always
has two solutions, and this one does.

The square root of  121  is a number that gives you  121  when you
multiply it by itself.  ' 11 ' does that:  (11 x 11) = 121 .  Is there <em><u>another</u></em>
number that does the same thing ?

How about ' -11 ' ?  Look at this:  ( -11 x -11 ) = 121 .  (Remember that
if both numbers being multiplied have the <em>same sign</em>, then their product
is positive.)

The bottom line is:  The mystery number is<em>  +11</em>  and also<em>  -11</em> .
Either one does what you want . . . When you square it and then
add  2  more, you get  123  either way.


6 0
3 years ago
From a boat on the lake, the angle of elevation to the top of a cliff is 26°1'. If the base of the cliff is 205 feet from the bo
e-lub [12.9K]
First off hmm <span>26°1' is just 26 degrees and 1 minute

there are 60 minutes in 1 degree, so 1minute is just 1/60 degrees
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alrite... so hmm, check the picture below

make sure your calculator is in Degree mode.


8 0
3 years ago
The root of *<br>x^2 = 16 are<br><br>Option 1 [ +4 ]<br>+4<br>(0,4)<br>-4​
Vesnalui [34]

Answer:

The roots of the equation are

<h3>- 4 and 4</h3>

Step-by-step explanation:

First rewrite the expression

That's

x² - 16

16 = 4²

So we have

x² - 4² = 0

Using the identity

<h3>a² - b² = (a + b)(a - b)</h3>

Rewrite the expression

So we have

x² - 4² = 0 is

( x + 4)( x - 4) = 0

x + 4 = 0 x - 4 = 0

x = - 4 x = 4

The roots of the equation are

- 4 and 4

Hope this helps you

3 0
3 years ago
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