Answer:
3 + 5i.
Step-by-step explanation:
(2−√−4)+(1+√−49)
√−4 = 2i and
√−49 = 7i.
So (2−√−4 + (1+√−49
= ( 2 - 2i) + (1 + 7i)
= 3 + -2i + 7i
= 3 + 5i.
Answer:
5,8,13,20
Step-by-step explanation:
f(n)=n²+4
f(1)=1²+4=1+4=5
f(2)=2²+4=4+4=8
f(3)=3²+4=9+4=13
f(4)=4²+4=16+4=20
Answer:
Step-by-step explanation:
25
Less. The distance across the field is less than 20 km
Answer:
there answer is either a or c