If you buy 2 bananas at a price of $0.49 each and 3 apples at a price of
$1.09 each, how much do you spend?

$4.25

Step-by-step explanation:

0.49 x 2 = 0.98

1.09 x 3 = 3.27

3.27 + 0.98 = $4.25

answer: .64

step-by-step explanation

set up the formula for standard deviation for this set of numbers, then simplify

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