Answer:
n = 5
Step-by-step explanation:
Using the rules of exponents
× = ,
=
Given
= , then
Since the bases on both sides are equal, both 3 then equate the exponents
4(n + 2) = 28 ← divide both sides by 4
n + 2 = 7 ( subtract 2 from both sides )
the answer I got is 9×3n/100
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≅
; rate of change , we must find the rate of change of the depth
5h=12r; ; deriving → → h=8 then ≅ 0.286
21x^2 - 23x - 20 = 0