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How does one get sonicare rebates?
One get's sonicare rebates by downloading a form from the internet, completing the requested fields and mailing the form to the return postal address on the form.
Does completing the square mean drawing the fourth side?
No. It refers to quadratic equations of the form (x + n)2 = c where n and c are real values. "Completing the square" solves for values of the x-intercepts (y=0). (see the related link)
How many angles on a clock form in one hour?
I believe it to be 360. Because the minute hand moves around the clock (a circle) once, completing 360 degrees. Infinitely many.
How do you find the vertex of the parabola y equals -4x2 - 16x - 11?
You would convert it to vertex form by completing the square. You can also find the optimum value as optimum value and vertex are the same.
Is there a math problem that cannot be solved by completing the square?
If you aren't dealing with algebra, such as x2+3x+21, then completing the square wont be able to solve the porblem, however if you are using algebra, and you cannot factorise, then completing the square will always work
