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3 years ago

Which of the following expressions is the conjugate of a complex number with −6 as the real part and −5i as the imaginary part?

2 answers:

5 0

The complex number is -6-5i. The conjugate means just flip the sign of the imaginary part of the complex number. -6+5i is the answer.

MrMuchimi3 years ago

3 0

Answer:

Conjugate of complex number is -6 + 5i

Step-by-step explanation:

a complex number with −6 as the real part and −5i as the imaginary part

For a complex number a+ib

a is the real part and b is the imaginary part

a complex number with −6 as the real part and −5i as the imaginary part can be written as -6-5i

the conjugate of a+ib is a-ib

The conjugate pf -6 -5i is -6+5i

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Svet_ta [14]

Answer:

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2 years ago

Ami'yan runs every day for exercise at a rate of 1 kilometer every 15 minutes. How many meters does he run in 1 hour? - Thank yo

Alona [7]

Answer:

The total distance covered in 1 hour is 4000 meters.

Step-by-step explanation:

The distance Ami'yan runs is 15 minutes = 1 kilometer

Using the unit formula,

The distance ran in 1 minute = $(\frac{1}{15} ) \textrm{Kilometer}$

Now, 1 hour = 60 minutes

⇒The distance covered in 60 minutes = 60 x (Distance run in 1 minute)

= $60 \times \frac{1}{15} = 4$

So, the distance covered in 1 hour = 4 kilometer

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⇒ 4 km = 4 x 1000 meters = 4000 m

Hence, the total distance covered in 1 hour = 4000 meters.

6 0

3 years ago

Here is an expression: 2 + 3ⁱ ( Remember what you do when you replace i with a number) Evaluate the expression when i is 1.

Kamila [148]

Answer:

The value of the expression when i is 1 is equals to 5.

Step-by-step explanation:

We are given the following expression:

$2 + 3^{i}$

Evaluate the expression when i is 1.

We replace i by 1. When we elevate a number to the 1, the result is the number we elevate. So

$2 + 3^{i} = 2 + 3^{1} = 2 + 3 = 5$

The value of the expression when i is 1 is equals to 5.

3 0

3 years ago

I think of a number, subtract 2 and multiply it by 5. this gives me the same answer as when I take 7 from the number and treble

Darya [45]

30...? i have no idea

8 0

3 years ago

Find the difference. Write your answer in simplest form.

cestrela7 [59]

Answer:

Yes you are correct. 9/20 is correct.

Step-by-step explanation:

7 /10 - 1 /4 =

7 * 2 / 10*2

1 * 5 / 4 * 5 = 14 /20 -5 /20 =9 /20

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2 years ago