Question

What is the upper bound and lower bound of 390 grams, measured to the nearest 10 grams?​

Answer 1

Answer:

Upper and lower bounds

If a number or measurement has been rounded, it can be important to consider what possible values the exact value could have been. For example, if a kitchen unit is 600 mm wide to the nearest 10 mm, it could actually be any width from 595 mm up to 605 mm – so it might not fit into a gap that is exactly 600 mm wide. To describe all the possible values that a rounded number could be, we use lower and upper bounds.

Lower and Upper Bounds

The lower bound is the smallest value that would round up to the estimated value.

The upper bound is the smallest value that would round up to the next estimated value.

For example, a mass of 70 kg, rounded to the nearest 10 kg, has a lower bound of 65 kg, because 65 kg is the smallest mass that rounds to 70 kg. The upper bound is 75 kg, because 75 kg is the smallest mass that would round up to 80kg.

This can be shown as an error interval (using inequality symbols):

Answer 2

Answer:

hi the andwer is 406 and 394

Step-by-step explanation: