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Natali5045456 [20]
3 years ago
13

The police department uses a formula to determine the speed at which a car was going when the driver applied the breaks, by meas

uring the distance of the skid marks.The equation d=0.03r^2+r models the distance, d, in feet, r miles per hour (r is the speed of the car) Factor the equation. d=?
Mathematics
1 answer:
Alex777 [14]3 years ago
7 0

Answer:

0.03 feet

Step-by-step explanation:

d = 0.03r² + r

When d = 0: 0.03r² + r = 0

r(0.03r + 1) = 0

∴ r = 0

When r = 0: d = 0.03 feet

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