All categories

2 years ago

Find the distance between 2-4i and d 6+i

Mathematics

1 answer:

nlexa [21]2 years ago

7 0

How do you find the distance between two complex numbers?

For two points in the complex plane, the distance between the points is the modulus of the difference of the two complex numbers. (s − a)+(t − b)i = (s − a)2 + (t − b)2. So, d = (s − a)2 + (t − b)2 is the difference between the two points in the complex plane.

You might be interested in

What is the estimate 20 9/11 divided by 6 19/20? A) 147 B) 120 C) 4 D) 3

ahrayia [7]

Answer:

D. 3

hope this helps

have a good day :)

Step-by-step explanation:

4 0

2 years ago

A recent study focused on the number of times men and women send a Twitter message in a day. The information is summarized below

jok3333 [9.3K]

Answer:

The value of the test statistic = 2.58

Test statistic Z = - 4.805

|Z| = 4.805 > 2.58

Null hypothesis is rejected The value of the test statistic = 2.58

There is significant difference between in the mean number of times men and women send a Twitter message in a day

Step-by-step explanation:

Step(i):-

Sample size of men n₁ = 25

mean of the first sample x₁⁻ = 20

Standard deviation of the first sample σ₁ = 5

Sample size of women n₂ = 30

mean of the second sample x₂⁻ = 30

Standard deviation of the first sample σ₂ = 10

Level of significance ∝= 0.01

Step(ii):-

Null Hypothesis : H₀: There is no significant difference between in the mean number of times men and women send a Twitter message in a day

Alternative Hypothesis :H₁:There is significant difference between in the mean number of times men and women send a Twitter message in a day

Test statistic

$Z = \frac{x^{-} _{1} - x^{-} _{2} }{\sqrt{\frac{S.D_{1} ^{2} }{n_{1} }+\frac{ S.D_{2} ^{2}}{n_{2} } } }$

$Z = \frac{20 - 30 }{\sqrt{\frac{(5)^{2} }{25 }+\frac{ (10)^{2} }{ 30} } }$

Z = $\frac{-10}{2.081} = - 4.805$

The value of the test statistic = 2.58 C

|Z| = 4.805 > 2.58

Null hypothesis is rejected The value of the test statistic = 2.58

Conclusion:-

There is significant difference between in the mean number of times men and women send a Twitter message in a day

7 0

2 years ago

How do you find the slope intercept form for Y=10-(4x+8)

Solnce55 [7]

Slope intercept form is y=mx+b.

slope: -4
y-intercept: 2

Therefore, y=-4x+2 is the slope intercept form of y=10-(4x+8). I hope this helped! Please 5 star this!

3 0

2 years ago

Find h(-4 ) given h(x)=3x2 +2x -16

liubo4ka [24]

Answer:

2x-10

Step-by-step explanation:

3x2+2x-16

6+2x-16

2x-10

4 0

3 years ago

Please help QUICK!! TY LOVES!!

irakobra [83]

Yes what he or she said because they are correct.

3 0

2 years ago

Read 2 more answers