Find the value of each determinant: 7
31
=
1142 19
7 11
11 211
55
2
|-16 -1 -9
-8
=
=
9.07 6.02 2.01
1-30.7 2.5 3.5
3.55 -1.1 2.35
Help

First step is to get rid of the square root. remember that a square root is the same as raising to the (1/2) power. see below: multiply exponents per exponent rules to get: remember you subtract exponents from the denominator and add exponents in the numerator so: simplify further: so a is the correct choice. if you don't understand this google exponent rules and it will you understand. look at the image results.

The only number less than 8 that can equal 12 would be 6, 36 is the dividend