ayoismeisjjjjuan

15.07.2020 • 

Mathematics

As a scientist, you study 200 grams of a radioactive material for seven months, and suppose you have obtained the following data: Month Weight
0 500
2 329
4 216.1
6 142
8 93
10 61.29
12 40.3
1. Using a graphing utility or Excel, build an exponential model from the data.
2. Using a graphing utility, build an exponential model from the data.
3. Express the weight as the function of months.
4. Graph the exponential function in the scatter diagram.
5. Interpret the constant parameters of this function.
6. Determine the half-life of the radioactive material.
7. How much radioactive material will be left after 30 months?
8. When will you have 40 grams of this radioactive material?

Ответ:

raishagibson

13.01.2021

Mathematics

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Train B is going faster

Step-by-step explanation:

The distance Train A travels is represented by

where d is the distance in kilometers and t is the time in hours

The speed of train A is 70 kilometer per hour

To find speed of train B use the table

find out slope

The speed of train B is 75 km per hour

The speed of the train B is more

Train B is going faster

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