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a line is drawn from the origin to a point on the ellipse 9x^2+25y^2=225.find the equation of the locus of midpoint of the line.
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midpoint of P and Q is (-1,3),slope of the midpoint to the origin is 3/-1.Hence equation of the required line is y/x=3/-1,or 3x+y=0.
since A pasted 30% of the cans,he failed to paste 70% of the cans.that is (70%)300.B pasted 15% and failed to paste 85% of the cans.that is (85%)250.C pasted 35% and failed to paste (65%)100.D pasted 7% and failed to paste (93%)150.E pasted 13% and failed
since the letters of the word "CHRISTYNA" are all distinct selecting distinct letters from "CHRISTYNA" can be done as follows:we partition the distinct letters according to the sizes of words
we may group the word as:(O O),c,t,b,e,r and consider the cases where the three letter words are all distinct and alike of a particular kind since the sizes of the words we want is less than the size of the given word. that is 3

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