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Mates recorded that water levels in one part of river fell 1.05 millimeters per year for 2.48 years. Describe how you could estimate the total variation in water level

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mhanifa

Answer:

2.60 mm drop or -2.60 mm from zero

Step-by-step explanation:

Level in the river continues dropping at an average rate of 1.05 mm/year

So total variation is the total drop over the period of 2.48 years and is:

  • 1.05 mm/year * 2.48 year = 2.60 mm

So total variation is 2.60 mm drop or -2.60 mm from zero level

Answer:

The decrease of the decimal rate -1.05 mm/year can be rounded to -1. You don’t need to round 2.48 because you’re multiplying by -1. Since -1.05 is negative and rounded to a greater value, the estimate could be adjusted to a slightly lesser value, maybe -2.5 or -2.6.

Step-by-step explanation:

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