The change of base formula allows you to write a logarithm in terms of logarithms with another base. It follows this pattern,

where a≠1 and b≠1
Assigning the base to be 7,

I hope I was able to answer your question. Have a good day.
Hello!
Step-by-step explanation:
<h2><u>Lesson: Exploring Slope and Slope-intercept form</u></h2>
Slope formula: 

<u><em>Therefore, the slope is -21/5</em></u>
<u><em>Answer is -21/5</em></u>
Hope this helps!
Thanks!
-Charlie
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:D
The angle between line XZ and line XY is given by:

Then, the height from vertex Y to horizontal line XZ is:

Then, the distance from Y to Y 'is given by:

Answer:
the approximate distance from Y to Y 'is:
D. 9.2 units