MichaelMelts
Answered

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pls help I need the simplified equation and answer

Pls Help I Need The Simplified Equation And Answer class=

Sagot :

gwendoline05

Answer:

5/(1/2)(3.9)(4)² - 2/(2/5)(3.9)(4)² - 1/(3/5)(3.9)(4)² - 1/2(3.9)(4)²

Convert mixed numbers to improper fractions,

11/2(3.9)(4)² - 12/45(3.9)(4)² - 8/5(3.9)(4)² - 1/2(3.9)(4)²

Remove bracket,

11/2 × 3.9 × 4² - 12/45 × 3.9 × 4² - 8/5 × 3.9 × 4² - 1/2 × 3.9 × 4²

Factor out common term 3.9 × 4²,

3.9 × 4² (11/2 - 12/5 - 8/5 - 1/2)

Times,

3.9 × 16

Answer,

62.4

traiti77
everything is multiplied by the same variable (xy^2), so the coefficients can be subtracted as is:
xy^2(5.5 - 2.4 - 1.6 - 0.5) = xy^2(1)

so, simplified, the expression is: xy^2

to find the value, plug in x and y values-
(3.9)(4)^2 = (3.9)(16) = 62.4

simplified expression= xy^2
value= 62.4
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