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Maslowich
3 years ago
12

Algebra 1 :: 9th grade

Mathematics
1 answer:
Katen [24]3 years ago
7 0

Answer:

i dont know HHAHAHA

Step-by-step explanation:

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The smallest region that can be photographed is
5*7 = 35 square km
so we want to know how long it takes to zoom out to an area of
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Notice that the length and width increase at the same rate, 2 km/sec, and they start out with a difference of two, so when the width has increased from 5 to x, the length will have increased from 7 to x+2. At the desired coverage area, then,
x(x+2) = 175
x^2 + 2x = 175
x^2 + 2x + 1 = 176 [completing the square]
(x+1)^2 = 176
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Since a negative value for x is meaningless here, x must be
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and the time it took to increast to that value was
(12.27 - 5) km / (2 km/sec) = about 3.63 seconds
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3 years ago
6y+x=8 Could someone explain how to do these equations and give the answer to this one
Mrrafil [7]

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Step-by-step explanation:

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