Saturday, 23 December 2017

EXPONENTIALS 4


If 502w (40w) = 100000012 ; Find w.

Solution

502w (40w) = 100000012

(502)w (40w) = (106 ) 12

(2500)w (40w) = 106x12

(2500 x 40)w = 1072

(100000)w = 1072

(105)w = 1072

105w = 1072   (Bases are alike, so they cancel out)

5w = 72

5w = 7214.4
5       5

w = 14.4 answer

TRY THIS…………………………….


If 43t (16t) = 128 ; Find t.



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