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Unformatted text preview: Step 1 of 1 h d If i=0 foravector in the (33;)ptane A=A ?+A 3 I J' A, = -A,. |A = ,/A,2 + A: A} + A; = 0 2 _ 2 A, _ —A’, From Euler’s rule r' is the imaginary unit A:=:( :) A)‘: Comment Step1 of3 A Supposeﬁleheighxofthepiletohideherh=200cm Longthofthc pilehohideherl=50cm Widthofthepilctohidehotb=40 cm Volume ofthepilc V=I-b-h =(200 cm)(50 cm)(40 em) = 400000 c1113 Density of the gold p = 19.3 g/om3 Comment Step 2 of 3 A _ _ _ Density = Mass of the ptle = dainty (volume of the pﬂe) volume mass =(density)(volume) = p? = (19.3)(400000) = 772 x104 g" Comment Step 3 of 3 A Givenoostofgoldpergram=310 -‘.Cost of gold of 772x10I grams = (772x10‘)(310) = \$772x10’ =\$77.2><10‘ =\$772 million .‘.Monetary value ofpilc =— ...
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