3. The commercial jets at 40 000 ft are flying at 520 mph along straight-line courses that cross at right angles. How fast is the distance between the planes closing when plane A is 5 mi from the intersection point and plane B is 12 mi from the intersection point.

Q: Grumpy, anti-social Professor Sosa loves standing on top of a 262 ft building and tossing water bal-…

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Q: What is the distance between points A=(2,5)A=(2,5) and C=(−3,2.5)C=(-3,2.5)?

A: Given:A= (2,5) and C= (-3,2.5)

Q: 11. If a bicycle wheel is 2 ft in diameter and tu RPM, how fast is the bicycle traveling? (Hint: 1…

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Q: The gradient of the line  8y = 4 - 12 is

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Q: A Plane (Plane A) travels North at a speed of 800 kph. after 15 minutes, another plane (plane B)…

A: Planes are moving same direction :

Q: At noon, ship A is 20 nautical miles due west of ship B. Ship A is sailing west at 24 knots and ship…

A: At time t, the ship A moves 24t and ship B moves 16t. It can be found that, the ship A moves closer…

Q: An automobile 20 feet long overtakes a truck 40 feet long that is traveling at 50. At what constant…

A: Let the speed of the automobile be v feet/second. Since both vehicle going in the same direction.…

Q: 9) Jimmy drove to his cabin on the lake and back. It took 0.6 hours longer to go there than it did…

A: We have to find the total trip time.   Note - As per our guidelines we have to answer only first…

Q: Which line has a negative slope?

A: The equation of line in first option is: x = 4.

Q: Two aeroplanes are departing from an airport. They are flying in a straight line where their flight…

A: Tow airplanes are departing from an airport. They are flying in a straight line where their flight…

Q: A dog is located on the north bank of a river that is 2 miles wide. His home is located on thesouth…

A: Since we know that,  Distance =  Rate × timeWe also know that Time = Distance/ Rate So, we will…

Q: A boat is sailing at a rate of 10 feet per second away from an observer 5 feet above the boat. How…

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