80
2 answers:
Answer:
The cricket make approximately 3 chirps in 15 seconds if the temperature is 80°F.
Step-by-step explanation:
We are given the following in the question:
The above equation is used approximate the temperature y in degrees Fahrenheit based on the number of chirps x a cricket makes in 15 seconds.
The attached image shows the graph for the given equation.
Now, we have to find the number of chirps a cricket will make in 15 seconds if the temperature is 80°F.
Putting y = 80 in the given equation, we get:
Thus, the cricket make approximately 3 chirps in 15 seconds if the temperature is 80°F.
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Answer:
Step-by-step explanation:
Perpendicular means that the slopes of the "old" line and the "new" line are opposite reciprocals; bisector means that the "new" line goes directly through the center of the "old" line. This perpendicular bisector, then, will go directly through the center of the "old" line, cutting it directly in half and leaving in its wake a 90 degree angle. To write this equation, then, of the perpendicular bisector, we need the slope of the old line and the midpoint of the old line. Let's work on the midpoint first:
So the "new" line will go through this point.
Onto the slope:
so the slope is
m = -4. That means that the perpendicular slope is
Now we're ready to write the equation:
and
and finally,