answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Lyrx [107]
2 years ago
8

Which pair represents the same complex number?

Mathematics
2 answers:
lorasvet [3.4K]2 years ago
4 0
For this case we have the following complex number:
 1 + i
 Its equivalent pair is given by:
 root (2) * (cos (pi / 4) + i * sin (pi / 4))
 Rewriting we have:
 root (2) * (root (2) / 2 + i * (root (2) / 2))
 (2/2 + i * (2/2))
 (1 + i)
 Answer:
 
option A represents a pair with the same complex number
pickupchik [31]2 years ago
3 0
The answer in Edge would be the second option.
You might be interested in
A simple random sample (SRS) of 100 of a certain popular car in 1997 found that 20 had a certain minor defect in the brakes. An
densk [106]

Answer: The required interval is (0.679, 0.821).

Step-by-step explanation:

Since we have given that

n_1=100\\\\p_1=20\\\\n_2=400\\\\p_2=50

So, the proportions would be

\hat{p_1}=\dfrac{p_1}{n_1}=\dfrac{20}{100}=0.2\\\\\hat{p_2}=\dfrac{p_2}{n_2}=\dfrac{50}{400}=0.125

So, At 90% confidence interval, the z score value would be

z = 1.65

and the hypothesis are :

H_0:\hat{p_1}-\hat{p_2}=0\\\\H_1:\hat{p_1}-\hat{p_2}\neq 0

So, the 90% confidence interval would be

(\hat{p_1}-\hat{p_2})\pm z\sqrt{\dfrac{\hat{p_1}(1-\hat{p_1}}{n_1}+\dfrac{\hat{p_2}(1-\hat{p_2})}{n_2}}\\\\=(0.2-0.125)\pm 1.65\sqrt{\dfrac{0.2\times 0.8}{100}+\dfrac{0.125\times 0.875}{400}}\\\\=0.075\pm 1.65\times 0.0433\\\\=(0.75-0.0714,0.75+0.0714)\\\\=(0.679,0.821)

Hence, the required interval is (0.679, 0.821).

5 0
2 years ago
13 over 15 divided by 7 over 10 in simplest form
PilotLPTM [1.2K]
If you would like to write (13/15) / (7/10) in the simplest form, you can calculate this using the following steps:

(13/15) / (7/10) = <span>(13/15) * (10/7) = (13 * 2) / (3 * 7) = 26/21 = 1 5/21
</span>
The correct result would be <span>26/21.</span>
8 0
2 years ago
You are looking out your window in a skyscraper, and again your window is at a height of 450 feet above the ground. This time, h
jarptica [38.1K]

Answer:

The tomato fell from 1027.2ft

Step-by-step explanation:

Parameters given:

Height from window = 450ft

Time taken to get from window to ground = 2 secs

V0, initial speed of tomato from drop point = 0 ft/s

Acceleration due to gravity = 32.2 ft/s^2

When the tomato gets to the observer at the window, its initial speed is no longer 0ft/s but an unknown value, u.

We can apply one of the equations of linear motion to then find this initial velocity at the window using the other parameters given i.e.  

s = ut + 1/2 at2^2

s = 450ft

t = 2 secs

a = g = 32.2ft/sec2^2

=> 450 = (u*2) + (1/2 * 32.2 * 2^2)

450 = 2u + 64.4

2u = 450 – 64.4

2u = 385.6

=> u = 192.8ft/s

Now that we know this initial velocity, we can use another equation of linear motion to find the height distance between the drop point and the window ,

v^2 - u^2 = 2gs

where s = distance between drop point and window

v = 192.8ft/s

u = 0ft/s;

=> 192.8^2 - 0^2 = 2*32.2*s

37171.84 = 64.4s

=> s = 37171.84/64.4

s = 577.20ft

Hence, distance from drop point to the ground, H, will be the addition of s and the height from the window to the ground:

=>H = 577.20 + 450

H = 1027.2ft

8 0
2 years ago
Read 2 more answers
Yolanda paid for her movie ticket using 28 coins, all nickels and quarters. The ticket cost $4. Which system of linear equations
VMariaS [17]
N + q = 28
0.05n + 0.25q = 4
7 0
2 years ago
Read 2 more answers
Leonard can afford a $1120 monthly mortgage payment. If the current
posledela

Answer:

$218,475

Step-by-step explanation:

4 0
2 years ago
Other questions:
  • PLEASE HELP ASAP, CORRECT ANSWER GETS BRAINLIEST
    12·2 answers
  • The mean age of a dance troupe is 14.2 years. A 7-year-old sibling is invited to join the troupe. How does the sibling’s age aff
    8·2 answers
  • Bodhi has a collection of 175 dimes and nickels. The collection is worth $13.30. Which equation can be used to find n, the numbe
    6·2 answers
  • Jamie has a jar of coins containing the same number of nickels, dimes and quarters. The total value of the coins in the jar is $
    12·2 answers
  • Lisa has played in six soccer matches. Her brother Josh has played 18 soccer matches. Lisa says josh has played in 12 times as m
    13·1 answer
  • You’ve bought a half-dozen (six) eggs from the store but you forgot to check them first! The probability that no eggs are broken
    6·1 answer
  • Suppose a shipment of 400 components contains 68 defective and 332 non-defective computer components. From the shipment you take
    12·1 answer
  • Your restaurant has a gross profit of $274,232, administrative expenses of $29,147 and marketing expenses of 32,645. What is the
    15·1 answer
  • He repartido mi colección de canicas entre mis tres amigos. A thales le he dado 1/5 del total, a arquimedes un 1/3 del resto y p
    8·1 answer
  • A recipe states that 5 servings of peanuts have 1,250calories. How many calories is 2 servings of peanuts? *
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!