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alexgriva [62]
3 years ago
13

Identify the number's complex conjugate. HELP ASAP!!

Mathematics
1 answer:
katovenus [111]3 years ago
4 0

Answer:

  \sqrt{2}+9i

Step-by-step explanation:

To make the conjugate of a complex number, <em>change the sign of the imaginary part</em>. The imaginary part is the part that has <em>i</em> as a factor.

Your number has real part √2 and imaginary part -9i. Changing the sign of the imaginary part makes it be +9i, so the complex number becomes ...

  \bf{\sqrt{2}+9i}

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Ttthhee maatthhhpleeaasss
seropon [69]
Take the area of the bedroom (including the windows) and subtract the windows area.
The answer would be:

35-4= 31 square feet

Hope this helped
6 0
4 years ago
Researchers recorded that a certain bacteria population declined from 110,000 to 400 in 30 hours. At this rate of decay, how man
Arlecino [84]

Answer:

  3137

Step-by-step explanation:

The decay factor is 400/110,000 = 1/275 in 30 hours. Assuming an exponential decay, the equation for the number remaining can be ...

  n(t) = 110,000·(1/275)^(t/30)

Then after 19 hours, the number remaining is ...

  n(19) = 110,000·(1/275)^(19/30) ≈ 3137

There will be about 3137 bacteria after 19 hours.

6 0
3 years ago
How do you do this <br> I don’t get it
Ierofanga [76]

Answer:

x= 65 z= 38 y= 77

Step-by-step explanation:

x=65° (opposite angles are equal)

z= 180°-[71+71 (bc the other side is also equal to 71)]

z= 180°-142°=38°

y= 180 - [sum of angle x (65°) and angle z (38°)]

y= 180 - 103= 77°

to make sure ur answer is correct the sum of angle x, y and z MUST = 180

lets check:

65° + 38° + 77° = 180°

:)

6 0
3 years ago
Point R' (-2, 8) is the transformation of point R (-2, 2). Which of the following represents th
Oxana [17]

Answer:

L

Step-by-step explanation:

The y coordinate of the image is 6 more than that of the preimage.

5 0
2 years ago
Is 80, 150, 170 a pythagorean triple?​
umka21 [38]

Answer:

Yes

Step-by-step explanation:

80² + 150² = 170²

6400 + 22500 = 28900

28900 = 28900

3 0
3 years ago
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