- Is the model valid for determining the number of chirps one should hear when the outside temperature is 35^\circ F? Why or why not?
+ If the outside temperature is 35^\circ F, how many chirps per minute should we expect to hear?
-
- yes or no
- Yes
- No
- because
- reason part 1
+
+ chirps per minute at 35 degrees Fahrenheit -20chirps per minute
+
+
+ This suggests the model is or isn't
+ is
+ is not
+ valid for determining the number of chirps when the outside temperature is 35^\circ F because
+ reason part 1we can find a value of N which makes T equal 35,we can't find a value of N which makes T equal 35,
- T adds a quarter of the number of chirps per minute to 40,
- and
- reason part 2
- N=-20.
- N=20.
- crickets can't chirp a negative number of times per minute.
-
- correct explanation
- $c1.selectedIndex=2 and $c2.selectedIndices=3 and $c3.selectedIndices=3
-
+ crickets can't chirp a negative number of times per minute.
+
- Suppose that in the morning an observer hears 65 chirps per minute, and several hours later hears 75 chirps per minute. How much has the temperature risen between observations?
+ Suppose that in the morning an observer hears 65 chirps per minute, and several hours later hears 75 chirps per minute.
-
- $changetemp=2.5
+
+ 2.5^\circ F
-
- What temperature corresponds to 65 chirps per minute? temperature at 65 chirps per minute56.25^\circ F
+
+
+ ^\circ F
+ $tempatchirps65=56.25
+
- What temperature corresponds to 75 chirps per minute? temperature at 75 chirps per minute58.75^\circ F
+
+
+ ^\circ F
+ $tempatchirps75 = 58.75
+
-
-
+
Dolbear's Law is known to be accurate for temperatures from 50^\circ to 85^\circ.