Question

15. While on vacation in Australia, Brent and Giselle decide to explore the Great Barrier Reef. Brent decides

Answer 1

The depth of diving expressed as signed numbers indicates the magnitude

and direction of Brent and Giselle's displacement in the water.

• The situation expressed as signed number is; -5, -80

Reasons:

The depth Brent decides to go snorkeling = 5 feet below sea level

The depth to which Giselle decides to explore = 80 feet below sea level

Required:

To represent the situation as signed numbers.

Solution:

Taking the sea level as 0, we have;

The depth to which Brent goes = 0 feet - 5 feet = -5 feet

Depth at which Giselle explores = 0 feet - 80 feet = -80 feet

Expressed on the number line, we have;

-∞∣     -80∣                    -5∣                0∣                 5∣          

${}$              

Therefore;

• The situation expressed as signed numbers is; -5, -80

From a similar question posted online, the possible question options are;

• 5, 80

• 5, -80

• -5, -80

• -5, 80

Learn more about signed numbers and number line here:

brainly.com/question/4136494

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