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The list below shows the temperature Bao recorded at 11:00 p.m. for four days last January.
Monday:
-7^(@)F
Tuesday:
0^(@)F
Wednesday:
7^(@)F
Thursday:
-25^(@)F
On which of the days did Bao record the lowest (coldest) temperature?
Monday
Tuesday
Wednesday
Thursday

The list below shows the temperature Bao recorded at $11$ : $00$ p.m. for four days last January. $\newline$ Monday: $-7^{\circ} \mathrm{F}$ $\newline$ Tuesday: $0^{\circ} \mathrm{F}$ $\newline$ Wednesday: $7^{\circ} \mathrm{F}$ $\newline$ Thursday: $-25^{\circ} \mathrm{F}$ $\newline$ On which of the days did Bao record the lowest (coldest) temperature? $\newline$ Monday $\newline$ Tuesday $\newline$ Wednesday $\newline$ Thursday

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Power rule with rational exponents

Full solution

Q. The list below shows the temperature Bao recorded at

11

:

00

p.m. for four days last January.

\newline

Monday:

-7^{\circ} \mathrm{F}

\newline

Tuesday:

0^{\circ} \mathrm{F}

\newline

Wednesday:

7^{\circ} \mathrm{F}

\newline

Thursday:

-25^{\circ} \mathrm{F}

\newline

On which of the days did Bao record the lowest (coldest) temperature?

\newline

Monday

\newline

Tuesday

\newline

Wednesday

\newline

Thursday

Find Lowest Temperature: To find the lowest temperature, we need to compare the temperatures recorded on each day. $\newline$ Monday: $-7\degree F$ $\newline$ Tuesday: $0\degree F$ $\newline$ Wednesday: $7\degree F$ $\newline$ Thursday: $-25\degree F$ $\newline$ We look for the smallest number, which will be the most negative number since we are dealing with temperatures in degrees Fahrenheit.
Compare Temperatures: Comparing the temperatures: $\newline$ $-7$ °F is colder than $0$ °F and $7$ °F, but we need to check if it's colder than $-25$ °F. $\newline$ $0$ °F is warmer than $-7$ °F and $-25$ °F, and it's colder than $7$ °F. $\newline$ $7$ °F is the warmest temperature on the list. $\newline$ $-25$ °F is colder than $-7$ °F, $0$ °F, and $7$ °F. $\newline$ Therefore, $-25$ °F is the lowest temperature recorded.

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