2 years ago

Ana and Chuyen are exploring

1 answer:

5 0

Ana would be farther from sea level because if you look at a number line and say 0 is the sea level Ana would be farther because -30 is farther away than -12.
Please give brainiest if possible.
Thank you!

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Step-by-step explanation:

we know that

The scale drawing is

$1:250,000$

That means

1 unit on a map represent 250,000 units in the actual

1 cm on a map represent 250,000 cm in the actual

1 cm on a map represent 2,500 m in the actual

1 cm on a map represent 2,5 km in the actual

therefore

using proportion

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$\frac{1}{2.5}\ \frac{cm}{km}=\frac{9}{x}\ \frac{cm}{km}\\\\x=9(2.5)\\\\x=22.5\ km$

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In a geometric sequence, if a3 = ‒5 and a6 = 40, determine a1, r, and an. Then write the first three terms of the sequence.

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$a_4=ra_3$
$a_5=ra_4=r^2a_3$
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$40=-5r^3\implies r^3=-8\implies r=-2$

$a_3=ra_2=r^2a_1$

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You know the first and third terms, $a_1$ and $a_3$ , so you just need to find the second term $a_2$ :

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