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GaryK [48]
3 years ago
15

Which of the following is the conjugate of a complex number with 2 as the real part and 7 as the imaginary part?

Mathematics
2 answers:
Natali5045456 [20]3 years ago
8 0
Conjugate of 2 + 7i is 2 - 7i
MissTica3 years ago
4 0

Answer:

2-7i is the correct option.

Step-by-step explanation:

We have been given the complex number real part 2 and imaginary part 7 it can be expressed as:

2+7i

And the conjugate means in the complex number is opposite sign of imaginary part that is in general:

a+ib will have conjugate a-ib

So, the conjugate of 2+7i is 2-7i

Hence, Option d is correct.

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The coffee table weighs 100 pounds. The end table weighs 10 times less than the coffee
kramer

Answer:

10

Step-by-step explanation:

if you divide 100 divided by 10 equal 10 and that's the correct answer for how I got 10

3 0
3 years ago
Solve for brainliest​
tekilochka [14]

9514 1404 393

Answer:

  1. ∠W = 130
  2. ∠X = 140
  3. ∠Y = 50
  4. ∠Z = 40

Step-by-step explanation:

Using 'y' and 'z' to represent angles with the corresponding names, we have ...

  y + z = 90

  (3b -1) +(2b +6) = 90 . . . . substitute the given expressions

  5b +5 = 90 . . . . . . . . . . . . simplify

  b +1 = 18 . . . . . . . . . divide by 5

  b = 17 . . . . . . . . subtract 1

Then the angles are ...

  y = 3b -1 = 3(17) -1 = 51 -1 = 50

  z = 2b +6 = 2(17) +6 = 34 +6 = 40 . . . . note that these are complementary, as theys should be

Angles W and Y form a linear pair, so are supplementary:

  W = 180 -Y = 180 -50 = 130

Angles X and Z form a linear pair, so are supplementary:

  X = 180 -Z = 180 -40 = 140

Then the angle measures are ...

  1. ∠W = 130
  2. ∠X = 140
  3. ∠Y = 50
  4. ∠Z = 40
6 0
3 years ago
A rectangular prism has a volume of 160 cm. The height of the prism is 5 cm. The length is twice the width. What are the dimensi
Y_Kistochka [10]
The answer to your question id 8*5*4.
8*5=40                                                                                                                   40*4=160                                                                                                               8 is twice of 4. the length is twice the width.
4 0
4 years ago
What is the scale factor of 5mm:1cm
Goryan [66]
<span>
1 cm = 10mm

5 mm : 10mm : :1 : 2

hoped i helped. ^-^
</span>
5 0
4 years ago
Which is a true statement about conjunctions?
m_a_m_a [10]
Examples of conjunctions are and, but, or, yet. So your answer would be A. I hope this helped. :)
7 0
3 years ago
Read 2 more answers
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