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satela [25.4K]
3 years ago
5

Find a + b, 6a + 8b, |a|, and |a − b|

Mathematics
1 answer:
IrinaK [193]3 years ago
5 0

Answer:

a+b=(6,3)

6a+8b=(54,16)

a=(-3,4)

a-b=(-12,5)

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If one inch represents 12 feet what dimension would you use to make a scale drawing of a building 75 feet by 80 feet?
Gemiola [76]
Answer:
6.25 inch by 20/3 inch (6.67 inch).
Explanation:
Use the scale as a conversion factor.
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Conversion factor: by the division property of equaltiy you can divide each side by 12 feet

1 inch / 12 feet = 1
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75 feet × 1 inch / 12 feet = 6.25 inch
Convert 80 feet:
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Thus, the dimesions to make a scales drawing of 75 feet by 80 feet are 6.25 inch and 20/3 inch (6.67 inch).
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