
Plug in what we know:

Multiply:

Add this to the original amount.

So he will have $6000 in his account after 5 years.
multiply all the factors in x^2
to get the roots which are 0, 11/6 and 8/7
6/11 is the simplest form of the fraction.
First you divide the top and bottom by two 84/2 and 144/2
Next you get 42/77
Finally you see that both are factorable by 7 so you divde 42 and 77 by 7 to get 7/11
Well each angle in a rectangle is 90°, so if x is an angle, it's 90°
I hope that helps!
Answer:
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