Posted by HELP HELP HELP MNHS on Tuesday, January 8, 2013 at 11:59pm.
Starting at home a salesman drove 20km east, then 9km north, then 4km east. finally, he drove x km south and at that point he was exactly 25 km away from his home. find x.

INTEGERS  Anonymous, Friday, January 11, 2013 at 7:40pm
d = 24km@0o+9km@90o+4km@0o+Nkm@270o.
Find N.
X = 20+4 = 24 km.
Y = (8N)km
d^2 = X^2 + Y^2 = 35^2.
d^2 = (130^2+(8N)^2 = 35^2
576+(N^216N+64) = 1225
N^216N+6401225 = 0
N^216N585 = 0
N = 33.475(Use Quad. Formula)

INT EGERS  Henry, Friday, January 11, 2013 at 7:47pm
Oops! Name is Henry. Not anonymous.
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