Maya is 6 km offshore on a boat at point B and wishes to reach a coastal villagewhich is 4 km down the straight shoreline at point D from the point A on the shorenearest to the boat.说,maya在距离海岸6km的船上此点记做b点,她想要到大
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![Maya is 6 km offshore on a boat at point B and wishes to reach a coastal villagewhich is 4 km down the straight shoreline at point D from the point A on the shorenearest to the boat.说,maya在距离海岸6km的船上此点记做b点,她想要到大](/uploads/image/z/3947582-38-2.jpg?t=Maya+is+6+km+offshore+on+a+boat+at+point+B+and+wishes+to+reach+a+coastal+villagewhich+is+4+km+down+the+straight+shoreline+at+point+D+from+the+point+A+on+the+shorenearest+to+the+boat.%E8%AF%B4%2Cmaya%E5%9C%A8%E8%B7%9D%E7%A6%BB%E6%B5%B7%E5%B2%B86km%E7%9A%84%E8%88%B9%E4%B8%8A%E6%AD%A4%E7%82%B9%E8%AE%B0%E5%81%9Ab%E7%82%B9%2C%E5%A5%B9%E6%83%B3%E8%A6%81%E5%88%B0%E5%A4%A7)
Maya is 6 km offshore on a boat at point B and wishes to reach a coastal villagewhich is 4 km down the straight shoreline at point D from the point A on the shorenearest to the boat.说,maya在距离海岸6km的船上此点记做b点,她想要到大
Maya is 6 km offshore on a boat at point B and wishes to reach a coastal village
which is 4 km down the straight shoreline at point D from the point A on the shore
nearest to the boat.
说,maya在距离海岸6km的船上此点记做b点,她想要到大距离船最近的海岸a点沿着海岸线向下4km的村庄记做d点,我翻译的把我给绕进去了!压根没明白这几个点的位置关系..T T
She can row at 5 km/hour and run 7 km/hour.
她划船的速度是5 km/h 跑步的速度是7km/h
Point C is where she should land her boat to reach the village in the least amount of time.C点呢是她可以泊船的地方(船停在海边),这个点距离他要去的村庄最近,
a) Draw a labeled diagram for this problem,which includes points A,B,C,and D.
Let x be the distance between points A and C.
我觉得我理解的有问题.abcd4个点分别是不是有3个围城了一个直角三角形?.大概描述一下他们的位置.
b) What two assumptions should you make about the wind and the water?
水和风是什么假设关系?
c) State the following quantities:
running distance = ___?她跑了多米?running time =___?跑了多长时间?
rowing distance = ___?她划船花了有多少米?rowing time =___?她划船划了多长时间?
d) How far away is point C from point A accurate to 2 decimal places?
c点道a点有多远?
应用题我老读题理解错题目意思..
有错的地方请指教..
b点是船的原始点
a点是她停靠的点(距离她的船最近)
c点是道村庄最近的点
d点是村庄。
Maya is 6 km offshore on a boat at point B and wishes to reach a coastal villagewhich is 4 km down the straight shoreline at point D from the point A on the shorenearest to the boat.说,maya在距离海岸6km的船上此点记做b点,她想要到大
你理解错了,A是B到岸边的垂足,长6;AD为海岸线,长4,C点为他选择的停靠点,在AD线上.
题目就是要你给出风速和水速的关系,以此算出C点,使到达目标用时最短