Answer:
65
Step-by-step explanation:
(4-7i)(4+7i) =16 + 28i-28i -49i^2 ➡16 - 49i^2
16 + 49 = 65
the fault here is i^2= -1 and -1 multiplied by -49 is +49 not -49
25% of 42=25 divided by 100 x 42
25\100 x 42=10.5
Answer:
155 degrees
Step-by-step explanation:
Every 4 angled shape will equal 360
45+130+30+x=360
205+x=360
155=360
Answer: 14 minutes
Step-by-step explanation:
in the attachment