Which of the following is a diagonal matrix? 0
O ON
ם ם
-42
16
-7.5
0
3.5 -18
O
1
0
9
6
-4
0
-1
0
O
0
-22
0
0
0 7.5
To
0
7.51

what's the question?

step-by-step explanation:

there is no question.

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

the answer is $42.96

step-by-step explanation: