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castortr0y [4]
4 years ago
6

How do you do this? Thanks for your time and effort! Plz help:)))))) THANKSSSSS

Mathematics
1 answer:
Nitella [24]4 years ago
4 0
R=-1/800(x^2-2400x)
use R'=0
R'=1/400x-300, 1/400x=300 => x=1200 critical point
take R(1200), we know its max bcuz of the orientation of R
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A map is drawn using a scale of 1cm/80mi
Setler79 [48]

Answer:

B) 3.5cm

Step-by-step explanation:

1/80 = n/280

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3 years ago
What are the solutions of the equation 6x2 +5x+1 = 0 ?
STatiana [176]

Answer:

Step-by-step explanation:

6x^2+5x+1=0

Descr= b^2-4ac

Descr= 25-24=1

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X2= (-b-√descr)/2a = (-5-1)/12= -1/2

6 0
3 years ago
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Airida [17]

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C. 54,000 m^2

Step-by-step explanation:

2 sides + 2 more sides

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3 years ago
Hence, or otherwise, simplify fully (x² + 4) - (x - 2)2
raketka [301]

Answer:

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Step-by-step explanation:

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3 years ago
20.) Marc had to walk to the grocery store which was exactly 50 meters from his house. So far he has walked exactly 21 meters. W
Sloan [31]

Marc has walked 42 % of the journey

<h3>How to calculate the percentage ? </h3>

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= 42

Hence the percentage of mile Marc walked is 42%

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