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irga5000 [103]
2 years ago
8

Which unit would you use to measure the time it would take to fly across the country?

Mathematics
2 answers:
cricket20 [7]2 years ago
8 0
I would say hours (I think) because I would not waste the time counting seconds or minutes it would be easier to go by the hour and then again it could be days

vovikov84 [41]2 years ago
5 0
I think it would be hours

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The area of a rectangular wall of a barn is 144 square foot. Its length is 10 foot longer than the width. Find the length and wi
Nimfa-mama [501]

9514 1404 393

Answer:

  • width: 8 ft
  • length: 10 ft

Step-by-step explanation:

The area is the product of length and width:

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  w^2 +10w -144 = 0 . . . . . . subtract 144 and put in standard form

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The width of the wall is 8 ft; the length is 18 ft.

_____

<em>Additional comment</em>

The equation is factored by looking for factors of -144 that have a sum of 10. We can choose from the different ways 144 can be factored:

  -144 = -1(144) = -2(72) = -3(48) = -4(36) = -6(24) = -8(18) = -9(16) = -12(12)

The respective sums are 143, 70, 45, 32, 18, 10, 7, 0.

So, the factors of -144 that have a sum of 10 are {-8, 18}. These are the constants that go into the binomial factors.

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3 years ago
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