SAT Math Practice Question #14696 - SATify | SATify

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SAT Math Practice Question #14696 - SATify | SATify

#14696

functions

exponential

applications

medium

180 sec

A certain type of bacteria doubles its population every 30 minutes. If a colony starts with 50 bacteria, which function $B (t)$ models the number of bacteria after $t$ hours?

A.

$B (t) = 50 (2)^{t}$

B.

$B (t) = 50 (2)^{4 t}$

C.

$B (t) = 50 (4)^{t}$

D.

$B (t) = 100 (2)^{t}$