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View Full Version : How good is your precalc/trigonometry skills?



xtullyx16
10-16-2010, 02:08 PM
George in the jungle is swinging from tree to tree when he comes upon a river. The river is filled with ferocious man-eating fish. George grabs a vine and decides to try and swing over the river. Given the figure below, do the following:

A. Show that george will NOT make it across the river without getting wet.

B. How far from the opposite shore (pt. A) should the fish be to meet George as he first enters the water?

C. What is the minimum distance up the vine George needs to climp to keep from becoming fish food?


and yes this is my free sketch in paint, off the exact picture from my old test. I forgot the answer to it, so I thought you guys could help me out plus have fun with it!

nskukalek79
10-16-2010, 02:25 PM
Soh Cah Toa !!!!!!!!!!!!

SpasticR450
10-16-2010, 02:28 PM
Build a damn bridge and splash some water on your slef haha

jcs003
10-16-2010, 03:23 PM
is that angle in radians? cant read it. also, never seen problems like this used with radians. i guess they want you to convert to degrees.

xtullyx16
10-16-2010, 04:09 PM
Originally posted by jcs003
is that angle in radians? cant read it. also, never seen problems like this used with radians. i guess they want you to convert to degrees.

yes that single angle is in radians. Thus, convert with (180/ pi)

Warnerade
10-16-2010, 05:15 PM
A. Show that george will NOT make it across the river without getting wet. assuming his vine is 100ft long, he will be 8.77 ft short

B. How far from the opposite shore (pt. A) should the fish be to meet George as he first enters the water? 88.70ft

C. What is the minimum distance up the vine George needs to climp to keep from becoming fish food? 108.77ft

xtullyx16
10-16-2010, 07:01 PM
Originally posted by Warnerade
A. Show that george will NOT make it across the river without getting wet. assuming his vine is 100ft long, he will be 8.77 ft short

B. How far from the opposite shore (pt. A) should the fish be to meet George as he first enters the water? 88.70ft

C. What is the minimum distance up the vine George needs to climp to keep from becoming fish food? 108.77ft

Nice.. I dont see any math but those answers seem familiar

Warnerade
10-16-2010, 07:07 PM
Your in the class,just got the answers...and can't extrapolate the equations from that?

You should probably drop the class

Warnerade
10-17-2010, 07:54 AM
C is wrong I didnt even read the question I just assumed it was the min length needed to get across the river safely