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For this case we must find an expression equivalent to:
![\sqrt [7] {x} * \sqrt [7] {x} * \sqrt [7] {x}](https://tex.z-dn.net/?f=%5Csqrt%20%5B7%5D%20%7Bx%7D%20%2A%20%5Csqrt%20%5B7%5D%20%7Bx%7D%20%2A%20%5Csqrt%20%5B7%5D%20%7Bx%7D)
By definition of properties of powers and roots we have:
![\sqrt [n] {a ^ m} = a ^ {\frac {m} {n}}](https://tex.z-dn.net/?f=%5Csqrt%20%5Bn%5D%20%7Ba%20%5E%20m%7D%20%3D%20a%20%5E%20%7B%5Cfrac%20%7Bm%7D%20%7Bn%7D%7D)
So, rewriting the given expression we have:

To multiply powers of the same base we put the same base and add the exponents:

Answer:
Option 1
Answer with step-by-step explanation:
We are given that a function

Differentiate partially w.r.t x
Then, we get

Differentiate again w.r.t x

Differentiate function w.r.t y


Again differentiate w.r.t y

Differentiate partially w.r.t y




Hence, if f(x,y) is of class
(is twice continuously differentiable), then the mixed partial derivatives are equal.
i.e
<em><u>ANSWER</u></em>
my answer is in the photo above
Hi there! The answer is $15
Let the one-time fee be represented by X.
The total cost of hiring a boat for 2 hours is X + $5 per hour × 2 hours = X + $10
The total cost can also be expressed as $25.
Now we can set up an equation.
X + 10 = 25
Subtract 10.
X = 15
Therefore, the one-time fee to rent a boat is $15.
We can check this by plugging in the data for the rent of 3 hours.
$15 + $5 per hour × 3 hours =
$15 + $15 = $30, which is the correct answer.
In short:
The answer is $15
~ Hope this helps you!