Answer:
(4 + 7i)(4 – 7i)
Step-by-step explanation:
This pair will produce a real answer because they are complex conjugates.
Complex conjugates ( a+bi) (a-bi) when multiplied together form a real number ( a^2 + b^2)
Answer: n = -3
Step-by-step explanation:
8(3n + 5) = -32
- <em>Divide both sides by 8.</em>
(3n + 5) = -4
- <em>Subtract 5 by both sides.</em>
3n = -4 - 5
3n = -9
- <em>Divide both sides by 3.</em>
n = -3
Answer:
Step-by-step explanation:
2x + 8y = 19
5x + 7y = 15
Answer:
he made 6 deliveries.
subtract $4.25 from his total, $17.15. you get $12.9. then divide that by $2.15 and it gives you 6.
The 6th value in a sequence is -26.
<u>Step-by-step explanation</u>:
- The formula for nth term is a sequence ⇒ an = -2n-14
- To find 6th value in a sequence, substitute n=6 in the formula.
an = -2n-14
⇒ a6 = -2(6)-14
⇒ a6 = -12-14
⇒ a6 = -26
∴ The 6th value in a sequence is -26.
