Question 7 1000 Basic Funcs Trig 0 The traffic flow rate (cars per hour) across an intersection is r(t) = 200+800t - 90t², where t is in hours, and t= 0 is 6 am. How many cars pass through the intersection between 6 am and 7 am? T x ▼ < > π U (0) 101 Enter a mathematical expression [more..] cars 8 DNE ↑ - ↓ ->> X

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