A sailing ship left harbour

The distance of a ship from its harbour is modelled by the function $d(t)=-3t^{3}+3t^{2}+18t$ where t is the time elapsed in
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At 3 P.M, ship A is 150 km west of ship B. Ship A is sailing east at 35 km/h and ship B is sailing north at 25 km/h. How fast is
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2. asked by Ali
3. 921 views
At noon, ship A is 100km west of ship B. Ship A is sailing south at 30km/h and ship B is sailing north at 15km/h. How fast is
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2. asked by Anon
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"At 9am ship A is 50 km east of ship B. Ship A is sailing north at 40km/h and ship B is sailing south at 30km/h. How fast is the
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2. asked by Stuck
3. 3,235 views
"At 9am ship A is 50 km east of ship B. Ship A is sailing north at 40km/h and ship B is sailing south at 30km/h. How fast is the
1. 1 answer
2. asked by Stuck
3. 1,004 views
Related RatesI am having trouble finding the equation to use to fit this all together. At noon, ship A is 100km west of ship B.
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2. asked by Juan
3. 672 views
Related RatesI am having trouble finding the equation to use to fit this all together. At noon, ship A is 100km west of ship B.
1. 0 answers
2. asked by Juan
3. 678 views
Related RatesI am having trouble finding the equation to use to fit this all together. At noon, ship A is 100km west of ship B.
1. 0 answers
2. asked by Juan
3. 571 views
Related RatesI am having trouble finding the equation to use to fit this all together. At noon, ship A is 100km west of ship B.
1. 0 answers
2. asked by Juan
3. 644 views
Related RatesI am having trouble finding the equation to use to fit this all together. At noon, ship A is 100km west of ship B.
1. 0 answers
2. asked by Juan
3. 561 views