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Sphinxa [80]
3 years ago
14

The lowest temperature ever recorded in Minneapolis was −41∘F . The lowest temperature ever recorded in Chicago was −27∘F . Was

the Chicago temperature warmer or colder, and by how many degrees?
Mathematics
1 answer:
Ulleksa [173]3 years ago
8 0

Answer:

-14

Chicago was warmer :)

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What’s the average of the following set of numbers ( 7,5,4,9)
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An open box is to be constructed so that the length of the base is 3 times larger than the width of the base. If the cost to con
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Answer:

Step-by-step explanation:

Let assume that the volume = 88 cubic feet

Then:

L = 3w --- (1)volume = l \times w \times h \\ \\ 88 =  (3w)   \times w  \times h \\ \\ 3w^2 h= 88 \\ \\ h = \dfrac{88}{3w^2}--- (2) \\ \\

The construction cost now is:

C = 4(l \times w) + 2 ( w  \times h) + 2(l \times h) \\ \\ C = 4(3w^2) + 2(w  \times \dfrac{88}{3w^2}) + 2(3w \times \dfrac{88}{3w^2}) \\\\ C = 12w^2 + \dfrac{176}{3w} + \dfrac{176}{w}

Now, to determine the minimum cost:

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length = 3 ( \dfrac{88}{3(3)})^{1/3} \ feet

height = ( 88})^{1/3} (3)^{1/3} \ feet

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