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
Answer:
2 yards is the answer
Step-by-step explanation:
1 yard is 3 feet so 36 inches all you have to do is 36 times 2 equals 72
Answer: the answer is C 190
Step-by-step explanation:
i promise this is the answer
Answer:
28 feet
Step-by-step explanation:
3.5 x 8 = 28
trust me
Answer:
the answer is zero
Step-by-step explanation:
-9+9=0
