fatima0097 fatima0097
  • 09-11-2020
  • Mathematics
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Quadratic applications??

Quadratic applications class=

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xenia168
xenia168 xenia168
  • 09-11-2020

Answer:

Step-by-step explanation:

2 l + 2w = 34 ⇔ l + w = 17 ⇒ l = 17 - w ..... (1)

l w = 66 ..... (2)

(1) ----> (2)

(17 - w) w = 66

w² - 17w + 66 = 0 ⇔ (w - 6)(w - 11) = 0

w = 6 cm

l = 11 cm

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