anonymous
  • 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.
Mathematics
chestercat
  • chestercat
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anonymous
  • anonymous
Column B a.positive b.negative
anonymous
  • anonymous
anonymous
  • anonymous

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anonymous
  • anonymous
Ok let me see what I go here
anonymous
  • anonymous
k
anonymous
  • anonymous
change in acreage = Initial acreage - (1.5)*s
anonymous
  • anonymous
change in temp = initial temp + (0.3)*m
anonymous
  • anonymous
change Altitude = -(0.9 m/sec)(90sec)
anonymous
  • anonymous
So... 1. Neg 2. Pos 3. Neg 4. Neg
anonymous
  • anonymous
so 1. gos with b and 2. gos with a
anonymous
  • anonymous
Yes

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