15 ! as soon as you can ! i have a lot of work that has to be done before 9: 00 tonight. you in !

-31 1/3 (answer choice 1)

Step-by-step explanation:

Let's begin by eliminating the fractions.  Mult. all four terms by the LCD (8), obtaining:

-f - 6 - 2f = 88.  Then -3f = 94, and f = -31 1/3

i dont know

step-by-step explanation:

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