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sruthivada
02.01.2020 •
Mathematics
To be labeled as a jumbo egg, the egg is supposed to weight 2.5 oz. however, when desmond buys a carton of jumbo eggs, the weight of one is 2.4 oz. what is the percent error?
(explain in a detailed way on how you got your answer)
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Ответ:
The percent error is 4.17 %
Solution:
To be labeled as a jumbo egg, the egg is supposed to weight 2.5 oz
When Desmond buys a carton of jumbo eggs, the weight of one is 2.4 oz
To find: percent error
Percent error is the difference between a measured and known value, divided by the known value, multiplied by 100%
Here approximate value = 2.5 oz and exact value = 2.4 oz
Therefore percent error is 4.17 %
Ответ:
6x^4 + 7x² - 10
6x^4 ⇒ 3x² * 2x²
-10 ⇒ 5 * -2
(6x² - 5)(x² + 2)
6x²(x² + 2) - 5(x² + 2)
6x^4 + 12x² - 5x² - 10
6x^4 + 7x² - 10
6x² - 5 = 0
x² = 5/6
x = √5/6
x² + 2 = 0
x² = -2
x = √-2