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Which of the following is the algebraic expression that best describes the sequence 4, 16, 64, 256, 1024, …?

Which of the following is the algebraic expression that best describes the sequence 4 16 64 256 1024 class=

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Gir325
D would be the right answer. 4^1 = 4, 4^2 = 64 and so on
it's D.

x=1 : 4^1= 4X1=4
x=2 : 4^2= 4X4=16 
x=3 : 4^3= 4x4x4=64
x=4 : 4^4= 4x4x4x4=256
x=5 : 4^5=4x4x4x4x4=1024

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