Write the number in 2 equivalent forms as a fraction, decimal, or percent.
1 answer:
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Answer:
Pythagorean theorem, eh?
Step-by-step explanation:
The way to do this is use the radius-tangent angle theorem thing...
It states that, a radius that intersects a point of tangency(I think that's what it's called) is perpendicular to the tangent. Thus, CW is perpendicular to OW!
Thus, it forms a right triangle, where we can use Pythagorean Theorem!
If you don't know what it is, check the internet! It's pretty simple.
So, there you go! Hope this helps!
NOTE: This answer was recently deleted for violating community guidelines, so I just re-uploaded it!(and edited it) So if you do need more help, do some research!
We need to FOIL that out and then get it into standard form to see what our A, B, and C are. FOILing gives us 
. If we move the 7 over by subtraction and set it equal to 0, we have 
. In order to avoid a negative leading coefficient, we can change all the signs to get 
so A = 1, B = 0, C = -18, first choice above.