=12 + 16i + 21i + 28i^2
=12 + 37i + -28
=37i - 16
Answer:
Step-by-step explanation:
Answer:
212 m²
Step-by-step explanation:
Break it down into 3 rectangles.
10x8=80
4x13=52
16x5=80
80+52+80=212
Answer:
4 is the square root of 16, so if it has to be negative, -4 would be the answer. Because you can't find the square root of -16. It could also be +-4 because the square root of -16 is invalid. Hope this helped.