A lab has two bacteria cultures. Culture A contains 8 x 104 bacteria, and Culture B
contains 4 x 106 bacteria. How do the two
cultures compare in size?
A. Culture A contains twice as many
bacteria as Culture B.
B. Culture A contains as many bacteria as
Culture B.
C. Culture A contains as many bacteria as
Culture B.
D. Culture A contains so as many bacteria as
Culture B.
2
1
25

a

step-by-step explanation:

the answer is a

x =-.20752

step-by-step explanation:

4^(x+2)=12

4^(x+2)=12

take the log base 4 on each side

log 4 (4^(x+2) = log 4(12)

we know log b(a^y) = y log b (a)

(x+2) log 4(4) = log 4 (12)

x+2 = log 4 (12)

we know   logb c = loga c/loga b

we want to convert to base 10   so a = 10

by default, we do not write the 10   c = 4   and b = 10

log4 10 = log 12/log 4

log4 10 = log 12/ log 4

x+2 = log 12/ log 4

subtract 2 from each side

x +2 -2 = log 12/ log 4 -2

x = 1.79248125 -2

x =-.20752

just keep asking questions until you have a better understanding.

step-by-step explanation: