Question

A first-class piece of mail (envelope or postcard) must have an aspect ratio that falls

between 1.3 and 2.5, inclusive. Find the piece of mail that would not be considered
first-class.
a postcard measuring 1.1 x 2.9 in
O a postcard measuring 1.2 x 1.6 cm
an envelope measuring 9.2 x 16.5 cm
O an envelope measuring 5 3/4 x 8 3/4 in

Answer 1

All the options provided meet the aspect ratio requirement for first-class mail.

Step-by-step explanation:

The aspect ratio of a first-class piece of mail must fall between 1.3 and 2.5, inclusive. Let's check each option to see which one does not meet this criteria:

1. A postcard measuring 1.1 x 2.9 in has an aspect ratio of approximately 2.636, which falls within the acceptable range. It is considered a first-class piece of mail.
2. A postcard measuring 1.2 x 1.6 cm has an aspect ratio of approximately 1.33, which falls within the acceptable range. It is considered a first-class piece of mail.
3. An envelope measuring 9.2 x 16.5 cm has an aspect ratio of approximately 1.793, which falls within the acceptable range. It is considered a first-class piece of mail.
4. An envelope measuring 5 3/4 x 8 3/4 in has an aspect ratio of approximately 1.522, which falls within the acceptable range. It is considered a first-class piece of mail.

Based on the given options, there is no piece of mail that would not be considered first-class. All the options meet the aspect ratio requirement.

Learn more about aspect ratio for first-class mail