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December 20, 2014

December 20, 2014

Posted by **Rebecca** on Tuesday, May 31, 2011 at 11:53am.

b) k^2 - 9k = 1

c) 8w^2 = 2 - 3w

Solve to the nearest hundredth.

b) 1.2x^2 + 0.5x - 0.3 = 0

- Gr10 math -
**Henry**, Wednesday, June 1, 2011 at 4:54pmb. y = k^2 - 9k = 1.

Y = K^2 - 9K - 1 = 0,

K = (9 +- sqrt(81-(-4)) / 2=(9+-9.22)/2

= 9.11, and -0.11.

Use same procedure for remaining problems.

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