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Aleks04 [339]
3 years ago
8

What does the denominator of a rational exponent represent

Mathematics
2 answers:
Daniel [21]3 years ago
7 0

The denominator of a rational exponent represents a root.

For example, the exponent \frac{1}{2} represents a square root. Likewise, an exponent of \frac{1}{3} represents a cube root.

_____

You can understand this if you recall what a root means, and what the rules of exponents are. A square root multiplied by itself gives the original value. Consider ...

\displaystyle\left(x^{\frac{1}{2}}\right)\left(x^{\frac{1}{2}}\right)=x^{\left(\frac{1}{2}+\frac{1}{2}\right)}\\\\=x^{1}=x

For other denominator values, the number of factors that must be multiplied to get x is the number in the denominator—just as you expect for a root.

Lunna [17]3 years ago
6 0

So here's the rule from fractional exponents to radicals: x^{\frac{m}{n}}=\sqrt[n]{x^m}

<u>Looking at this rule, the denominator represents the root.</u>

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Cat face x+4/5=45 sa il aflu pe x
love history [14]

Given:

The equation is

x+\dfrac{4}{5}=45

To find:

The value of x.

Solution:

We have,

x+\dfrac{4}{5}=45

Isolating the variable, we get

x=45-\dfrac{4}{5}

x=\dfrac{225-4}{5}

x=\dfrac{221}{5}

x=44.2

Therefore, the value of x is 44.2.

6 0
3 years ago
I don't know what the answer is to divide 180 in a ratio of 4:5:9
Karolina [17]
Hello there,

First you need to add together the numbers.
4+5+9 = 18
Divide the total by this,
180 / 18 = 10
Multiply each number by 10.
40:50:90.

Hope This Helps You!
Good Luck Studying :)
4 0
3 years ago
Read 2 more answers
Please help explanation if possible
Eva8 [605]

Answer:

612 adults

361 students

Step-by-step explanation:

To solve this question, set two equations:

Let x be number of adults and y be number of students.

As there are in total 937 people, the equation would be the sum of both adults and children:

x+y=937

x=937-y  ...... ( 1 )

As the total sale amount is $1109, the equation would be to add up the ticket fee:

2x+0.75y=1,109  ...... ( 2 )

Put ( 1 ) into ( 2 ):

2(937-y)+0.75y=1,109

1874-2y+0.75y=1,109

-1.25y=-765

y=763/1.25

y=612

Put y into ( 1 ):

x=973-612

x=361

Therefore there are 612 adults and 361 students.

5 0
2 years ago
You do not need to be concerned if there are limits on what a company will pay for a service of medical or dental procedures.
riadik2000 [5.3K]
False because you should always make sure a company has medical and detal procedures 
8 0
3 years ago
( 9b - 3 ) ( b + 6 ) <br> Simplify this expression ! <br> Please answer this !!
Colt1911 [192]

Answer:

9b^2+3b-18

Step-by-step explanation:

make a box and multiply each of the parts

7 0
3 years ago
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