Problem
Ruchi measured the area of her kitchen as 2.81x10^4 square units. When she recorded the area, she wroto 2.81 x 10^4 square feet which statement about her labeling of the units is true?
Solution
We need to identify the correct statement
A)She is correct because dimensions of rooms must always be measured in feet and area would be square feet
False the dimensions can be expressed in any units and not always in feet
B)She is correct because 2.81x10^4 ft^2 is equivalent to 2,810, which is an average size for a kitchen since area is always so much more than length.
False we can have any kitchen with with a higher value inthe width respect to the lenght
C)She is incorrect because 2.81 x 10^4is around 30,000 so the units must be smaller than feet. She most likely measured in inches
Correct for this case we can conclude that the area cannot be just 2.81x10^4 since usually we express this value in integers without decimals
D)She is incorrect because 2.81 is a small number. She probably measured in yards to arrive at such a small value.
False we don't have anough info to conclude that 2.82 is a small number for this case