Write the equation 0.3x 2 + 5x - 7 = 0 in general form and then choose the value of "b."
Write the equation 0.3x 2 + 5x - 7 = 0 in general form is 3x^2 + 50x - 70 = 0 and then the value of "b" is 50 .
Updated 2/24/2015 8:17:45 PM
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Write the equation 0.3x 2 + 5x - 7 = 0 in general form is 3x^2 + 50x - 70 = 0 and then the value of "b" is 50 .
Confirmed by Andrew. [2/24/2015 9:46:49 PM]

A circle has its center at the origin, and (5, -12) is a point on the circle. How long is the radius of the circle
Updated 2/24/2015 11:14:36 PM
A circle has its center at the origin, and (5, -12) is a point on the circle. the radius of the circle is sqrt (5^2 + 12^2) = 13.
Confirmed by Andrew. [2/25/2015 1:12:57 AM]
What is the line of symmetry for the parabola whose equation is y = -x2 + x + 3?
Updated 3/3/2015 4:18:04 AM
The line of symmetry for the parabola whose equation is y = -x^2 + x + 3 is 1/2 .
symmetry = -1/(-1*2) = -1/-2 = 1/2
Confirmed by jeifunk [3/3/2015 5:32:59 AM]
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