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.
A.
positive
B.
negative

Question

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.
A.
positive
B.
negative

anonymous · Answer

i dont know the others but number 4 is b

danjs · Answer

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

danjs · Answer

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

danjs · Answer

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

anonymous · Answer

okay so would they be positive or negative @DanJS

danjs · Answer

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

anonymous · Answer

thank you :D