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Hoochie [10]
3 years ago
6

Recommendations

Mathematics
1 answer:
Vlad1618 [11]3 years ago
4 0

Answer:

It IS a rational number

Step-by-step explanation:

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Which pair of complex factors results in a real number product? 15(–15i) 3i(1 – 3i) (8 + 20i)(–8 – 20i) (4 + 7i)(4 – 7i)
photoshop1234 [79]

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)

6 0
3 years ago
Read 2 more answers
8(3n + 5) = -32<br> what does n =
olga_2 [115]

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

8 0
3 years ago
Twice a number plus eight times a second number is 19. Five times the first number plus seven times the
-BARSIC- [3]

Answer:

Step-by-step explanation:

2x + 8y = 19

5x + 7y = 15

7 0
3 years ago
Daniel makes $4.25 per hour plus $2.15 for
eimsori [14]

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.

5 0
3 years ago
What is the 6th value in the sequence with the explicit formula an=−2n−14?
Zinaida [17]

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.

4 0
3 years ago
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