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s2008m [1.1K]
3 years ago
13

X^9/7 convert from exponent form to radical form

Mathematics
1 answer:
Wittaler [7]3 years ago
4 0

Answer:

x^{\frac{9}{7}} = \sqrt[7]{x^9}

Step-by-step explanation:

You can solve this by realising that the denominator of a fractional exponent can be expressed as the base of a radical.

Note also that the order does not matter.  You could also express it as

\sqrt[7]{x}^9

The reason this works is that you're effectively breaking the exponent into fractions.  The first answer is the equivalent of:

(x^9)^{1/7}

and the second would be:

(x^{1/7})^9

In both cases, the exponents would be multiplied, giving the same result.

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Three runners competed in a race.
hram777 [196]

Answer:

runner B

Step-by-step explanation:

its the only  one on the line

runner C is tall like a mountan

and runner A is not anywhere close to a line

6 0
3 years ago
The sum of two consecutive odd integers equals 12. What are they?
svetoff [14.1K]

Answer:

x = 5

The two consecutive odd integers are: 5, 7

And...checking

sum = 12

Step-by-step explanation:

8 0
3 years ago
The exponential decay graph shows the expected depreciation for a new boat, selling for $3500, over 10 years a. Write an exponen
Alex Ar [27]
For the answer to the question above,  
<span>V(n) = a * b^n, where V(n) shows the value of boat after n years. 
V(0) = 3500 
V(2) = 2000 

n = 0 
V(0) = a * b^0 = 3500 
a = 3500 

V(2) = a * b^2 
2000 = 3500 * b^2 
b = sqrt (2000/3500) 
b ≈ 0.76 

V(n) = 3500 * 0.76^n 

We can check it for n = 1 which is close to 2500 in the graph: 
V(1) = 3500 * (0.76)^1 
V(1) = 2660 

And in the graph we have V(3) ≈ 1500, 
V(n) = 3500 * (0.76)^3 ≈ 1536 

Now n = 9.5 
V(9.5) = 3500 * (0.76)^(9.5) 
V(9.5) ≈ 258</span>
4 0
3 years ago
Read 2 more answers
Which expressions represent a difference of squares?
andrew-mc [135]

Answer:

25 {x}^{2}  - 36\\ 1-16x^2\\4x^2 - 12x + 9

Step-by-step explanation:

25 {x}^{2}  - 36 \\  = ( {5x})^{2}  - ( {6})^{2}  \\

4 0
3 years ago
The theoretical probability of spinning an even number on a spinner is 23. The spinner has 8 even-numbered sections. How many se
meriva

Answer:

there are 12 sections

here is how to do it:

2 8

_ = _

3 x

so you cross multiply

8 x 3 = 2x

24=2x

12=x

Step-by-step explanation:

6 0
3 years ago
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