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
mojhsa [17]
3 years ago
12

Which of the following is equivalent to the to complex number i^21​

Mathematics
1 answer:
Debora [2.8K]3 years ago
7 0

Answer:

i

Step-by-step explanation:

Next time please share the possible answers.  Thank you.

Notice that i^4 = 1.  

Factoring i^21, we get    (i^20)(i^1)  = (1)^20i = i

You might be interested in
If f(x)= 3-2 and g(x)=1/x+5 what is the vue of (f/g) (8)
Lena [83]

Answer:

The value of (f/g) (8) = -169

Step-by-step explanation:

<u>Step 1: explaining the question</u>

The quotient (f/g) is not defined at values of x ⇒  both the functions must be defined at a point for the combination to be defined.

⇒(f/g)(x) =(f(x)) / (g(x))

If f(x)= 3-2 and g(x)=1/x+5

⇒then according to the preceding formula: (f/g)(x) =(f(x)) / (g(x))

⇒(f/g)(8) = f(8) / g(8)

to solve this we have to find the value of both f(8) and g(8)

<u>Step 2: find value of f(8) and g(8)</u>

⇒ we know that f(x) = 3-2x and we know dat f(x) = f(8)

⇒ f(8) = 3-2(8)

f(8) = 3-16 = -13

⇒we know that g(x) = 1/x+5  and g(x) = g(8)

⇒ g(8) = 1/8+5

g(8) =1/13

These 2 equations we will insert in the following : ⇒(f/g)(8) = f(8) / g(8)

⇒ f/g (8) = -13 / (1/13) = -13 * 13/1 = -169

The value of (f/g) (8) = -169

6 0
3 years ago
The Math Club bought 16 graphing calculators for $765. The TI-70 model costs $40 and
Afina-wow [57]

Answer:

They bought 5

Step-by-step explanation:

65x+40y=765

65(5)+40(11)=765

5 0
2 years ago
Medical students compared two types of knee surgery to determine if patients were able to return to their active lifestyles. The
sweet [91]

Answer:

Option A

Step-by-step explanation:

The response variable is the dependent variable whose variation depends on other variables and in this case it is the type of surgery either total knee replacement or partial knee replacement.

While the explanatory variable which is the independent variable manipulated by the researcher for the given experimental study is the amount of activity the patients were able to do after their respective surgeries.

5 0
3 years ago
What transformation is shown below?
Artist 52 [7]

Answer:

it's a translation

Step-by-step explanation:

it just moved (3,0). If it were a rotation the y-axis wouldn't be the same. If it were a reflection you would be able to flip the blue triangle onto the red triangle.

6 0
3 years ago
Quadratics Help please?
irakobra [83]
(x-3)^2 + (x+5)^2=9^2
(x^2-6x+9) + (x^2+10x+25)=81
2x^2+4x+34=81
2x^2+4x-47=0
From here just use quadratic formula
5 0
3 years ago
Read 2 more answers
Other questions:
  • Elle wanted to order candy online. Company A is offering 2 1/2 pounds of chocolate for $32.50, while Company B is offering 2 3/4
    6·1 answer
  • Solve the system of equations: y=x^2+3x-6 y=2x-6
    6·2 answers
  • What percent of 80 is 3.2
    5·2 answers
  • I need help with this question.​
    15·1 answer
  • calculate the distance between the points!
    10·2 answers
  • Xanthia can read 100 pages per hour and Molly can read 50 pages per hour. If they each read the same book, and the book has 225
    5·2 answers
  • On a coordinate plane, a line segment contains points (negative 5, 5) and (5, 0). Another segment contains points (negative 1, 1
    10·2 answers
  • Graph<br> y-intercept<br> x-intercept<br> vertex<br><br> y=x^2+4x-5
    7·1 answer
  • Pls i need help rn this is due REALLY soon pls thank you
    12·2 answers
  • The manufacturer of Derrick’s car states that the car should get 25 miles per gallon of gas. Derrick plans to drive 400 miles. H
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!