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2 years ago

The traffic flow rate (cars per hour) across an intersection is

Mathematics

1 answer:

Zanzabum2 years ago

8 0

Answer:

990 cars

Step-by-step explanation:

Find how many cars pass through at 6am, t=0:

r(0)= 300+600(0)-90(0²) = 300

Find how many cars pass through at 9am, t=3:

r(3)= 300+600(3)-900(3²)=300+1800-810=1290

Find the difference (how many cars pass between 6am and 9am): 1290-300=990

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3 years ago

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2 years ago

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Answer:

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