Answer:
21 squared
Step-by-step explanation:
this is because you add together 9 and 12. this gives you 21 and because you want it squared it would be 21 squared.
Answer: The length is 15 inches and breadth is 9 inches
Step-by-step explanation:
Given : Area of rectangular sheet = 135 square inches
Perimeter of rectangular sheet = 48 square inches
Now Area of rectangular sheet =
= 135 square inches
perimeter of rectangular sheet =
= 48 square inches
Thus
= 24 square inches
Thus Length = 15 inches
Breadth = 9 inches
(2-6i)(3+i)
=2(3+i)-6i(3+i)
=6+2i-18i+6
=12-16i
Note i*i=-1