X=40 degree is the correct answer
We can use the FOIL method to simplify.
= (3x – 1)(2x + 9)
= (3x * 2x) + (3x * 9) + (-1 * 2x) + (-1 * 9)
= 6x + 27x + (-2x) + (-9)
= 33x - 11
Hope This Helped! Good Luck!
Answer:
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Step-by-step explanation:
Answer:
x=3, solution is not extraneous
Step-by-step explanation:
we have

Solve for x
squared both sides


<u><em>Verify</em></u>
For x=3



-----> is true
therefore
x=3, solution is not extraneous
Yes the ratio would change because it needs 3 times more than the original amount so you would multiply it by 3