Evaluate each expression. determine if the final simplified form of the expression is positive or negative -42 (-4)2 42

Given the expression:

1.

we know:

then;

Therefore, the value of expression is -16 i.e negative.

2.

we know:

then;

Therefore, the expression is 16 i.e Positive.

3.

we know:

then;

Therefore, the expression is 16 i.e Positive.

e) none of the above because the measure of angle cba is 101°

idk bring the function back   im not smart

step-by-step explanation: