Follow PEMDAS. First is multiplication.
Follow the FOIL method: (First, Outside, Inside, Last)
<span>(8 - 3i) - (8 - 3i)(8 + 8i)
</span>8(8) = 64
8(8i) = 64i
-3i(8) = -24i
-3i(8i) = 24 (note: two "i"'s = -1)
Combine like terms
64 + 64i - 24i + 24
64 + 40i + 24
88 + 40i
Now subtract 88 + 40i from 8 - 3i
(8 - 3i) - (88 + 40i) = -80 - 43i (Note: the signs in the parenthesis change, because you are subtracting as a whole)
-80 - 43i is your answer
hope this helps
Answer:
6
Step-by-step explanation:
f is turned into a zero and f =x so you replace the x with zero multiply -1/2 and x then add +6 to the result
Answer:
Step-by-step explanation:
<u>The speed is:</u>
<u>To find:</u>
- Distance in 1 minute and 2 seconds
Distance = speed * time
<u>Distance is:</u>
- 100/9 meter /seconds * 1 min and 2 seconds =
- 100/9 m/s *62 s =
- 6200/9 m = 688.88 m ≈ 689 m rounded to the nearest meter
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Answer:
Step-by-step explanation:
Lisha is making headbands using ribbon.
each one requires 15.5 inches of ribbon
For 12 headbands Lisha need to buy ribbon = 15.5 × 12
= 186 inches
Therefore, Lisha will need to buy 186 inches ribbon.
160 inches ribbon is not sufficient to make 12 headbands. She will need to buy 186 inches or more.
