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3 years ago

Choose the correct conic section to fit the equation.x 2+ y 2= 9A. CircleB. EllipseC. ParabolaD. Hyperbola

1 answer:

7 0

we have to choose the correct conic section to fit the equation.x ^2+ y^ 2= 9. we know the equation of a circle is x^2 + y^2 = r^2

and if we compare both the equations we find that both are similar and we can even find the value of r by comparing both the equations.

So the correct conic section is circle

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A train is moving at an average speed of 180 m/s. how long will it take to reach the station. Both stations are 80 km apart?

Alexxandr [17]

1 km = 1000 meters.

Find total meters: 80 km x 1000 meters per km = 80,000 meters.

Divide total meters by the given speed:

80,000 meters / 180 m/s = 444.44 seconds.

1 minute = 60 seconds

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Total time = 7 minutes 24.42 seconds

Round as needed.

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klasskru [66]

Answer:

the graph is attached

Step-by-step explanation:

This sort of equation makes it easy to find the x- and y-intercepts. Setting x to zero gives ...

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Setting y to zero gives ...

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Every point on this line is a solution to the equation.

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solong [7]

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Step-by-step explanation:

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3 years ago

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kolezko [41]

Answer:

Step-by-step explanation:

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4 years ago

Read 2 more answers

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artcher [175]

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