Which is the lower temperature (a) 245°C or 245°F(b) 200 °C or 375°F

To compare the temperature, we need to convert the temperatures to the same unit. So, let's convert Fahrenheit to Celsius using the following equation:

[tex]C=\frac{5}{9}(F-32)[/tex]

So, replacing F by 245 °F and 375 °C, we get:

[tex]\begin{gathered} C=\frac{5}{9}(245-32) \\ C=\frac{5}{9}(213) \\ C=118.33\degree C \end{gathered}[/tex][tex]\begin{gathered} C=\frac{5}{9}(375-32) \\ C=\frac{5}{9}(343) \\ C=190.55\text{ }\degree C \end{gathered}[/tex]

Now, we can compare the temperature.

Since 118.33 °C is lower than 245°C, we get that 245 °F is lower than 245°C

Since 190.55 °C is lower than 200 °C, we get that 375 °F is lower than 200°C

So, the answers are:

(a) 245 °F

(b) 375 °F