The slope is the coefficient of x, which is 10, and the y-intercept is the constant, which is 5.
The average speed, in km/minute, of the train is 2.79 km/minute
<h3>Calculating average speed </h3>
From the question, we are to calculate the average speed in km/minute
From the given information,
Distance travelled = 503 km
Time taken = 3 hours = 3 × 60 minutes = 180 minutes
Using the average speed formula,
Average speed = Distance / Time
∴ Average speed of the train = 503 / 180
Average speed of the train = 2.79 km/minute
Hence, the average speed, in km/minute, of the train is 2.79 km/minute
Learn more on Calculating average speed here: brainly.com/question/12025128
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Answer:
2$ I think
Step-by-step explanation:
Answer: the graph farthest to the right is almost correct. If you substitute values for x in the function f(x)= -3√x , the output does not match the curve on the graphs shown.
If you have a choice that includes only a curve to the right of the y- axis, that would be better.
Step-by-step explanation: Square roots of Negative x-values will result in imaginary numbers. Otherwise the graph with the curve passing through coordinates (1,-3) (4,-6) and (9,-9) is a good choice.
(And ask your teacher about the square root of negative numbers on this graph.)
Answer:
The radius of circle B is 6 times greater than the radius of circle A
The area of circle B is 36 times greater than the area of circle A
Step-by-step explanation:
we have
<em>Circle A</em>
![D=6\ cm](https://tex.z-dn.net/?f=D%3D6%5C%20cm)
The radius of circle A is
-----> the radius is half the diameter
<em>Circle B</em>
![r=18\ cm](https://tex.z-dn.net/?f=r%3D18%5C%20cm)
Compare the radius of both circles
![3\ cm< 18\ cm](https://tex.z-dn.net/?f=3%5C%20cm%3C%2018%5C%20cm)
![18=6(3)](https://tex.z-dn.net/?f=18%3D6%283%29)
The radius of circle B is six times greater than the radius of circle A
Remember that , if two figures are similar, then the ratio of its areas is equal to the scale factor squared
All circles are similar
In this problem the scale factor is 6
so
![6^{2}=36](https://tex.z-dn.net/?f=6%5E%7B2%7D%3D36)
therefore
The area of circle B is 36 times greater than the area of circle A