3 years ago

Find the area I will mark as brainless thank u and rate 5 starts

Mathematics

1 answer:

Veronika [31]3 years ago

7 0

Answer:

The area is 10

Step-by-step explanation:

The blue area can be divided into a square and a number of triangles, but it is just as easy to subtract the areas of the triangles around the outside:

The blue area is ...

16 -1 -1 -1 -2 -1 = 10 . . . . . . (CCW from upper left)

Also you can count the number of dots between each curve

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How can I solve for the logarithm?

Sergio039 [100]

$\bf 12^{2x-8}=15\\\\
-----------------------------\\\\
log_{{ a}}\left( x^{{ b}} \right)\implies {{ b}}\cdot log_{{ a}}(x)\impliedby thus\\\\
-----------------------------\\\\
log\left( 12^{2x-8} \right)=log(15)\implies (2x-8)log(12)=log(15)
\\\\\\
2x-8=\cfrac{log(15)}{log(12)}\implies 2x=\cfrac{log(15)}{log(12)}+8\implies 
x=\cfrac{\frac{log(15)}{log(12)}+8}{2}$