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I need help on a few problems... Please?

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For a local triathalon, Jane swam 5 miles west in a local lake. Then she biked 12 miles north. Finally she will run the shortest distance from the point where she ended up to her starting point. Which expression will tell the distance she must run?

2(5) + 2(12)

5 X 12

52 X 122

sqrt 5^2+12^2

(5 + 12)/2

Sam hiked 48 miles directly east and then 36 miles directly south. Find the shortest distance in miles from the point where he ended up to his starting point.

72 miles

60 miles

48 miles

36 miles

24 miles

The screen on Jeff's computer monitor has a length of 15.2 and a width of 11.5 in. Find the measure of the diagonal for Jeff's monitor.

19 inches

24 inches

28 inches

17 inches

13 inches

From this crash site to the hospital along Goodwin Avenue is 26 miles. Tangerine Way between 4th Avenue and 5th avenue is 10 miles. The ambulance decides that to avoid traffic, it will go the long way, North on Tangerine and East on 5th to get to the hospital.

How much further, in miles, is the Tangerine and 5th Ave route than Goodwin Ave? Show all work involved in getting the answer.

A hot air balloon is anchored to the ground with 400 meter cables and 50 meters.About how many meters above the ground is the top of the balloon? Round your answer to the nearest meter

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1 ANSWERS


  1. sqrt 5^2 +12^2

    60 miles

    19 inches

    8 miles [working: 26^2-10^2 = 576, sqrt 576 = 24, (24+10)-26 = 8]

    the questions are all pythagoras theorem where in a right angle triange a^2 + b^2 = c^2, allowing you to work out the length of the third side if two are known

    are you sure you have all the information for the last question as it does not seem to make sense!!

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