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Dafna11 [192]
3 years ago
9

Can you guys help me ?

Mathematics
2 answers:
AysviL [449]3 years ago
8 0

Answer:

C the 12th root of (8^x)

Step-by-step explanation:

This becomes 8 ^ x/4  ^ 1/3

We know that a^b^c = a^ (c*c)

8 ^(x/12)

Lady_Fox [76]3 years ago
6 0

Your answer would be \sqrt[12]{8}^{2}.

Approaching this problem would be easier by converting the cube root of 8 to 8 to the power of 1/3. Remember that when you take anything to the nth root, it is the same as taking something to the power of 1 / n.

Therefore, the equation becomes (x^{1/3} )^{\frac{1}{4}x }.

Now, to keep simplifying, recall that when you do n^{x^y}, it can become n^{x*y}.

This can be applied in this situation. You are taking 8 to the power of 1/3 to the power of 1/4x. Now, you can multiply the two "to the power of's" to get 8^{\frac{1}{12}x }. Applying the same logic, it becomes 8^{\frac{1}{12} *x}  = 8^{\frac{1}{12} ^x}.

Now, all you have to do is use the same logic as used in the very beginning. Raising something to the power of 1/12 can become taking it to the 12th root. So therefore, the equation would be \sqrt[12]{8}^{x}

Good luck!

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What is the solution of <br>3b² = 27<br>c² + 9 = 9​
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Read 2 more answers
If the distance from the boat to the lighthouse is 120 meters and the angle of elevation is 40°, which of the following equation
Sidana [21]

You can use the fact that lighthouses are usually standing perpendicular to the ground that smaller distance on earth surface(planes or water bodies like sea or ocean or calm river) acts as if they a straight plane.

The length (y) of the lighthouse is given by:

Option D:  tan 40° = y over 120.

<h3>What is angle of elevation?</h3>

What you see something higher than your eye level height, you need to see up, you elevate your head to see that thing. The angle from the straight horizontal level of eye to the current elevated level is measured and named as angle of elevation.

Similarly, there is angle of depression when the observer looks down.

<h3>How to calculate the height of the considered lighthouse?</h3>

See the figure attached below to understand the symbols used in calculations.

Let the boat is on point C, and let the light house be AB.

Then we have:

Length of CA = 120 meters

∠ ACB = 40°

To find: length of AB

By using the trigonometric ratio tangent, we get:

tan(\angle ACB) = \dfrac{AB}{AC}\\\\tan(40^\circ) = \dfrac{h}{120}

Since here h is denoted by y, we have h = y, or

The equation to find the height of the lighthouse is

tan(40^\circ) = \dfrac{y}{120}

Thus,

The length (y) of the lighthouse is given by:

Option D:  tan 40° = y over 120.

Learn more about angle of elevation here:

brainly.com/question/12483071

8 0
2 years ago
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