Answer:
(0.4)² = (0.4).(0.4) = 0.16
His error is, instead of raising (0.4) to exponent 2, he multiplied (0.4) by 2 , obviously which is wrong
Step-by-step explanation:
Answer:
see below
Step-by-step explanation:
(.4) ^2 = this means .4 times itself
.4*.4
.16