Identify which of the twelve basic functions listed below fit the description given.
y = x, y = x2, y = x3, y = |x|, y = 1/x, y = e^x, y = sqr(x), y = ln x, y = sin x, y = cos x, y = int(x), y = 1/1+e^- x
the three functions that are bounded above.
a. y = sin x, y = cos x, y = ln x
b. y = ln x, y = sqr (x), y = 1/1+e^- x
c. y = sin x, y = cos x, y = int (x) {this answer was wrong! }
d. y = sin x, y = cos x, y = 1/1+e^-x

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

14

step-by-step explanation:

look at photo