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UkoKoshka [18]
3 years ago
12

Solve for x: Log4(x+8)=3

Mathematics
1 answer:
viktelen [127]3 years ago
3 0
If log_{4}(x+8)=3
Then 4^3=x+8
64=x+8
64-8=x
56=x
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How do you do this question?
erik [133]

Step-by-step explanation:

Use the first fundamental theorem of calculus.

∫₆¹⁰ f'(x) dx = f(10) − f(6) = 8 − 8 = 0

5 0
3 years ago
A group of which of the order must be cyclic?<br><br> A. 6 <br> B. 7 <br> C. 8 <br> D. 9
DochEvi [55]

Answer:

Its option D. 9

mark me as brainlist

3 0
3 years ago
I NEED HELP PLEASE, THANKS! :)
Elena L [17]

Answer:

First option is the right choice.

Step-by-step explanation:

\frac{1}{\cos \left(x\right)+1}+\frac{1}{\cos \left(x\right)-1}\\\\\frac{\cos \left(x\right)-1}{\left(\cos \left(x\right)+1\right)\left(\cos \left(x\right)-1\right)}+\frac{\cos \left(x\right)+1}{\left(\cos \left(x\right)+1\right)\left(\cos \left(x\right)-1\right)}\\\\=\frac{\cos \left(x\right)-1+\cos \left(x\right)+1}{\left(\cos \left(x\right)+1\right)\left(\cos \left(x\right)-1\right)}\\\\=\frac{2cos\left(x\right)}{cos^2\left(x\right)-1}\\\\=\frac{2cos\left(x\right)}{sin^2\left(x\right)}

=2\cdot \frac{cos\left(x\right)}{sin\left(x\right)}\cdot \frac{1}{sin\left(x\right)}\\\\=-2cot(x)csc(x)

Best Regards!

7 0
3 years ago
In a cinema theatre, why do we normally not hear echoes even though the sounds are loud?<br>​
ikadub [295]

Answer:

An echo is formed as a result of reflection of the original sound which returns to the listener. You might have experienced Echo in an EMPTY ROOM but no echo is produced after the room is occupied. To avoid echo from being  produced the echo has to be absorbed. Echo in a cinema theatre is absorbed by the WALLS of the theatre.

They are not plain. The walls are corrugated or shaped to form tiny holes or empty spaces to ABSORB the ECHO. Modern Theatre's have ABSORBENT materials sticked to the walls of the theatre.

4 0
3 years ago
The graph of y = –0.2x2 is _____ the graph of y = x2.
zavuch27 [327]
To solve this completion exercise you must apply the proccedure shown below:

 1. You have the first function:

 y=-0.2x²

 When you give different values to "x" and plot it as it is shown in the graph attached, you obtain a parabola.

 2. Now, you have the second function:

 y=x²

 When you give different values to "x" and plot it as it is shown in the graph attached, you obtain a parabola.

 3. When you see the two graphs attached, you can conclude the the answer is the option D):

 D. W<span>ider than and opens in the opposite direction</span><span>
  </span> 

8 0
3 years ago
Read 2 more answers
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