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3 years ago

Sophia trains with her friend Aisha on a 5-kilometer trail near their school.

Mathematics

1 answer:

KatRina [158]3 years ago

4 0

Answer:

y = 7x

y = 5.5x

Sophia

Step-by-step explanation:

Given that:

Aisha runs 1 km in 7 minutes :

Aisha's function :

y = 7x

x = number of kilometers and y is the number of minutes

For Sophia :

Slope = change in y / change in x = (15.5 - 10) / (1 - 0)

Slope = 5.5

Hence, Sophia :

y = 5.5x

Hence, Sophia runs faster as she completes one kilometer in 5.5 minutes. Which is lesser Than Aisha's time. Of 7 minutes.

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Part 2

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We need to make sure the radical is defined, meaning the radicand has to be non-negative. Thus,

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1 year ago

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givi [52]

Answer:

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Step-by-step explanation:

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2 years ago

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Answer:

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2 years ago

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creativ13 [48]

Answer:

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Step-by-step explanation:

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Hope this helps!

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1 year ago

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Art [367]

Answer:

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Step-by-step explanation:

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This is right because if you plug x with 3, the sum = 10.

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