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dedylja [7]
3 years ago
10

Death valley, California, has the lowest elevation in the united states.its elevation is 282 feet below sea level. Mount Mckinle

y, Alaska, has the highest elevation in the united states. Its elevation is 20,320 feet above sea level. Use integers to describe these two locations in the united states.
Mathematics
2 answers:
Georgia [21]3 years ago
8 0

Answer:

1. the answer is -282 because it says that it is velow sea level

2. the answer is 20320 becase it say that it is above sea level

xxTIMURxx [149]3 years ago
6 0
282 feet is below the sea level it's mean -282. The highest elevation is 20,320 feet above the sea level.
20,320+(-282)=20,038
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Dimensions of printed poster are

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width is 48 cm


Step-by-step explanation:

Let's assume

length of printed poster is x cm

width of printed poster is y cm

now, we can find area of printed poster

so, area of printed poster is

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The top and bottom margins of a poster are each 12 cm and the side margins are each 8 cm

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now, we can plug back y

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now, we have to minimize A

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A'=\frac{d}{dx}\left(\left(x+16\right)\left(\frac{1536}{x}+24\right)\right)

we can use product rule

A'=\frac{d}{dx}\left(x+16\right)\left(\frac{1536}{x}+24\right)+\frac{d}{dx}\left(\frac{1536}{x}+24\right)\left(x+16\right)

=\frac{d}{dx}\left(x+16\right)\left(\frac{1536}{x}+24\right)+\frac{d}{dx}\left(\frac{1536}{x}+24\right)\left(x+16\right)

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A'=-\frac{24576}{x^2}+24

now, we can set it to 0

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A'=-\frac{24576}{x^2}+24=0

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Since, x is dimension

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so, we will only consider positive value

x=32

now, we can solve for y

y=\frac{1536}{32}

y=48

so, dimensions of printed poster are

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