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
11111nata11111 [884]
1 year ago
9

PLEASE HELP!!!

Mathematics
1 answer:
Wewaii [24]1 year ago
8 0

9514 1404 393

Answer:

  • 2∠15°
  • 2cos(15°) +i·2sin(15°) ≈ 1.93185 +0.517638i

Step-by-step explanation:

Using Euler's formula, the 6th root is easily found.

  (64i)^(1/6) = ((2^6)e^(iπ/2))^(1/6) = 2e^(iπ/12) = 2∠15°

  = 2(cos(15°) +i·sin(15°)) = 2·cos(15°) +i·2·sin(15°) ≈ 1.93185 +0.517638i

You might be interested in
Simplify this expression 5xy-x^2t+2xy+3x^2t​
Dmitry_Shevchenko [17]

Answer:

\large\boxed{5xy-x^2t+2xy+3x^2t=7xy+2x^2t}

Step-by-step explanation:

5xy-x^2t+2xy+3x^2t\\\\combine\ like\ terms\\\\(5xy+2xy)+(-x^2t+3x^2t)\\\\7xy+2x^2t

6 0
2 years ago
Read 2 more answers
In the month of June, the temperature in Johannesburg, South Africa, varies over the day in a periodic way that can be modeled a
UNO [17]

Answer:

T = - 7.5 Cos π/12( t - 4 ) + 10.5

Step-by-step explanation:

Given that the

Maximum temp. = 18 degree Celsius

Minimum temp. = 3 degree Celsius

The half way between 10 am and 10 pm is 4 am

The sine and cosine functions can be used to model fluctuations  in temperature data through out the year. An equation that can be used to model these data is of the form:

T = A cos B(t - C) + D, where A,B,C,D, are constants, T is the  temperature in °C and t is the hour (1–24)

A = amplitude = (Tmax - Tmin)/2

A = (3 - 18)/2 = - 15/2 = -7.5 ( note : after midnight)

B = 2π/24 = π/12

C = units translated to the right

C = 4

D = ymin + amplitude = units translated up

D = 7.5 + 3 = 10.5

The formula of the trigonometric function that models the temperature T in Johannesburg t hours after midnight we be

T = - 7.5 Cos π/12( t - 4 ) + 10.5

3 0
2 years ago
Another payment type enabled by smartphones is person-to-person payments, which are apps that allow people to send money electro
Galina-37 [17]

Answer and Step-by-step explanation:

Person to person payment is an online technology that allows customers to transfer their money and funds from their account to another account through mobile phones. A p2p app allows one user to send money to another user by using an app or website—transaction including anything from paying a dinner bill, rent, or contributing to charity.

The increased obtaining of online banking, mobile banking, and e-commerce by users has paved the way for greater use of person-to-person payments. In the payment markets sending money between smartphones has become an ordinary matter. According to Billtrust, young adults are using a person to person payment more than two generations.

Nearly half of smartphone owners regularly used p2p payment apps. Most people used p2p payment app because it offers better security or most of their peers use it.

Millennials have often led older Americans in their adoption and use of technology. More than 93% millennial (who turns ages 23 to 38 this year) have their smartphones. Similarly, the vast majority of millennials use social media, compared with smaller shares among old generations.

3 0
1 year ago
Simplify:
ryzh [129]
7.2(2.8r-4.5s)+9.34r -1.25s
=20.16r - 32.4 +9.34r -1.25s
=29.5r - 33.65s

So the answer is A
hope I can help u
7 0
2 years ago
Jaxon’s mother spends more than 2 hours cleaning the house. The inequality x>2 represents the situation. Which graph represen
lisov135 [29]
It should look like a vertical line on the 2 of the x axis and everything to the right would be shaded.
3 0
1 year ago
Read 2 more answers
Other questions:
  • Stacy wants to build a patio with a small, circular pond in her backyard.The pond will have a 6-foot radius. She also wants to i
    15·2 answers
  • Nina and Ryan each ran at a constant speed for a 100-meter race. Each runner’s distance fro the same section of the race is disp
    14·2 answers
  • Joseph would like to make 12 pounds of a coffee blend at a cost of $6.25 per pound. He blends Ground Chicory at $4.40 a
    6·2 answers
  • Use the drop-down menus to complete the proof. Given that w ∥ x and y is a transversal, we know that ∠1 ≅∠5 by the . Therefore,
    10·2 answers
  • A sample of 900 college freshmen were randomly selected for a national survey. Among the survey participants, 372 students were
    11·1 answer
  • The percentage of body fat of a random sample of 36 men aged 20 to 29 found a sample mean of 14.42. Find a 95% confidence interv
    7·1 answer
  • Stefan was able to map \triangle ABD△ABDtriangle, A, B, D onto \triangle ABC△ABCtriangle, A, B, C. Stefan concluded: "I was able
    15·1 answer
  • Problem 5 (4+4+4=12) We roll two fair 6-sided dice. Each one of the 36 possible outcomes is assumed to be equally likely. 1) Fin
    5·1 answer
  • Angle EFG is 80°
    13·1 answer
  • Identify the type of curve given by each equation.<br><br><br> r = –12sin 2θ
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!