1answer.
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
vodomira [7]
2 years ago
13

Simplify the complex number i^28 as much as possible.

Mathematics
1 answer:
ella [17]2 years ago
5 0

let's recall that i⁴ = 1 so then    i^{28}\implies i^{4\cdot 7}\implies (i^4)^7\implies (1)^7\implies 1

You might be interested in
Describe strategies for finding factors or multiples of a number
Darina [25.2K]
Say if you wanted to find factors of 6, the you'd multiply that number by any number to find a factor or multiple.
3 0
3 years ago
Bob wants to buy a TV that cost $500 plus 8% tax. He is getting a bonus of $45 and a birthday gift of $85 which he plans to use
Genrish500 [490]

Answer:

He needs to work for 40 whole hours

Step-by-step explanation:

In this question, we are tasked with calculating the amount a Tv will cost Bob in terms of the number of hours he needs to work.

Let’s look at the total cost he has to pay.

a. $500

b. 8% tax = 8/100 * 500 = $40

c. He is paying 2 bills of $35 each making a total of 2 * $35 = $70

The total amount he is to pay is thus; 500 + 40 + 70 = $610

Let’s look at his income ;

a. Bonus $45

b. Birthday gift $85

The total amount of money he has asides his salary to offset the bill is 45 + 85 = $130

The balance to pay from his salary would be $610 - $130 = $480

The number of hours he has to work since he earns $12 per hour would be 480/12 = 40 hours of work

5 0
3 years ago
Read 2 more answers
How do you solve a system of linear equations by graphing? ​
Sergeeva-Olga [200]

9514 1404 393

Explanation:

This is a self-answering question: you solve it by graphing the equations.

<em>The solution is where the lines intersect</em>. The point of intersection of the lines is the point that satisfies all the equations for the lines, hence is a solution to the system. If they do not intersect, there are no solutions. If the lines are coincident, there are an infinite number of solutions.

__

The equations can be graphed by any of a number of methods. (My favorite is to let a graphing calculator do it.) The method of choice depends on the coefficients and the form the equations are given in. Methods of graphing are a topic for a more lengthy discussion.

6 0
3 years ago
Which ordered pair is a solution to the equation 3y= -2x-4
zloy xaker [14]
Y=-2/3x-1.3 (0,-4)
~ Hope This Helps :)
8 0
3 years ago
Read 2 more answers
Solve for x. 2 1/2x−3/4(2x+5)=3/8<br><br> Please hurry
Fofino [41]

Answer:

x= - 1.48 or 0.48

Step-by-step explanation:

I used general formula. Hope I'm on a right path.

8 0
2 years ago
Other questions:
  • Which is the correct classification of StartFraction 3 Over 8 EndFraction?
    12·2 answers
  • 35 Points!
    6·1 answer
  • 25 take away 2 / 9 ​
    6·1 answer
  • In July, Jannat did yard work for a total of 26 hours. For
    7·1 answer
  • MathWiz wya? I need some help with this...show your work &lt;3
    13·1 answer
  • Shop anywhere. Snap every receipt. Earn FREE gift cards! Sign up for Fetch with my code "1D5A2" and get 2,000 points when you sn
    12·2 answers
  • Max walks 10 meters in 4 seconds what is his walking rate in meters per second?
    11·2 answers
  • In a right triangle ABC, C is the right angle. What does cosB equal?
    6·1 answer
  • 1
    8·1 answer
  • What is the trigonometric ratio for cos N? <br><br> Enter your answer, as a simplified fraction.
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!