Mathematics, 24.07.2019 14:00 kellyroy74
The steps to derive the quadratic formula are shown below: step 1 ax2 + bx + c = 0 step 2 ax2 + bx = − c step 3 x2 + (b / a)x = - c / a step 4 x2 + (b / a)x + b ^2 / 4a^2 = (- c / a) + (b^2 / 4a^2) step 5 x2 + (b / a)x + b ^2 / 4a^2 = (-4ac / 4a^2) + (b^2/4a^2) step 6 x^2 + b / 2a = (b^2 - 4ac) / (4a^2) step 7 x + b / 2a = +- square root of b^2 - 4ac / 4a^2 = +- square root of b^2 - 4ac / 4a step 8 x = −b / 2a +- square root of b ^2 - 4ac / 2a step 9 x = (- b +- square root of b^2 - 4ac) / (2a) which of the following is the first incorrect step? a) step 4 b) step 6 c) step 7 d) step 8
Answers: 1
Mathematics, 21.06.2019 21:00, minasotpen1253
Awater tank holds 18000 gallons. how long will it take for the water level to reach 6000 gallons if the water is used at anaverage rate of 450 gallons per day
Answers: 1
The steps to derive the quadratic formula are shown below: step 1 ax2 + bx + c = 0 step 2 ax2 + b...
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