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- anonymous

Would each situation be represented by a positive or a negative number?
Column A Column B
1.
1.5 acres of rainforest are destroyed every second for s seconds. Express the change in acreage of rainforest.
2.
A tub of water is heated by 0.3 degrees per minute for m minutes. Express the change in temperature.
3.
A submarine descends at a rate of 0.9 m/s for 90 s. Express the change in altitude relative to sea level.
4.
A credit card account has 2 charges of $15 and no payments. Express the balance of the credit card.

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- anonymous

- chestercat

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- anonymous

Column B
a.positive b.negative

- anonymous

- anonymous

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- anonymous

Ok let me see what I go here

- anonymous

k

- anonymous

change in acreage = Initial acreage - (1.5)*s

- anonymous

change in temp = initial temp + (0.3)*m

- anonymous

change Altitude = -(0.9 m/sec)(90sec)

- anonymous

So... 1. Neg 2. Pos 3. Neg 4. Neg

- anonymous

so 1. gos with b and 2. gos with a

- anonymous

Yes

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