3 years ago

Damien paints 1/5 of a room in 5/12 hour What unit rate describes this situation

Mathematics

1 answer:

Ber [7]3 years ago

5 0

It takes 2 1/2 hours to paint each room.

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Determine the type and number of solutions of 4x^2-5x+1=0.

Arlecino [84]

4x² - 5x + 1 = 0
a = 4; b = - 5, c = 1
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Δ = (-5)² - 4.4.1
Δ = 25 - 16
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x = - b ± √Δ / 2.a
$x = \frac{-5\± \sqrt{9} }{2*4}$
$x = \frac{-5\±3}{8}$
$x' = \frac{-5-3}{8} = \frac{-8}{8} = -1$
$x' = \frac{-5+3}{8} = \frac{-2}{8} (\div2) = \frac{-1}{4}$

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Easy points :) 2*2*2+2-1

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Answer:

Step-by-step explanation:

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wariber [46]

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The angle 117° is the key information. Across the line, the angle 117° is part of the 180° across the line. Angle RMN is equal to 180° - 117° = 63°

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The area should be 170

Step-by-step explanation:

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