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
algol13
3 years ago
13

Need help with the question in the picture learned awhile ago and forget!

Mathematics
1 answer:
xxTIMURxx [149]3 years ago
7 0

Answer:

-i

Step-by-step explanation:

i^15

Divide the exponent by 4

15/4 = 3 r 3

Take the remainder and use as the exponent

i^3

 We know that i^2 = -1  

i^3 = i^2 *i

i^3 = -1*i

-i

You might be interested in
What is the solution of the equation over the complex numbers
denis-greek [22]

<u>Answer:</u>

2i\sqrt{3}

-2i\sqrt{3}

<u>Step-by-step explanation:</u>

x^2 + 12

First set the equation to 0

x^2 + 12

x^2 + 12 = 0

Second, get the 12 on the right side of the equal sign by adding a -12 to each side

x^2 + 12 = 0

x^2 + 12 + (-12) = 0 -12

x^2 = -12

Square root both sides of the equal sign.

x^2 = -12

\sqrt{x^2} = \sqrt{-12}

Take the square root on left sides of the equal sign.

\sqrt{x^2} = \sqrt{-12}

x = \sqrt{-12}

Take the square root on the right side of the equal sign. Remember \sqrt{-1} = i

x = \sqrt{-12}

x = \sqrt{4}*\sqrt{-1}\sqrt{3}}

x = 2i\sqrt{3}

<u>AND</u>

x = -2i\sqrt{3}

8 0
3 years ago
What is the AREA of this figure?
elena-14-01-66 [18.8K]

Answer:

532m squared is the answer

Step-by-step explanation:

Split the shape into two shapes

one will be a square and the other one a triangle

1) since the length and the width of the square is 18m just Multiply

18x18=324m squared

2) look carefully the width of the square you split is equal to the base of the triangle, so you connect the 18 and the 8 together.

18+8=26m squared

3) Now solve the triangle since you know the height which is 16m squared.

A=lw/2

26x16=416

416 divided by 2 is 208

4) finally just Add

208+324=532m squared

Hopes this helps!

7 0
3 years ago
Nathan has 102 solid-colored disks that are red.
Alex787 [66]

Answer:

blue = 35

green = 29

red = 38

Step-by-step explanation:

Let r = red

Let g = green

let b = blue

r + g + b = 102

r = b + 3

b = g + 6    Subtract 6 from both sides of the equation

b - 6 = g

===================

substitute for red and green

(b + 3) + b + b - 6 = 102

b + 3 + b + b - 6 = 102

Combine like terms

3b - 3 = 102

Add 3 to both sides

3b - 3 + 3 = 102 + 3

3b = 105

Divide by 3

3b/3 = 105/3

b = 35

======================

r = b + 3

r = 35 + 3

r = 38

=======================

g = b - 6

g = 35 - 6

g = 29

========================

3 0
3 years ago
Read 2 more answers
How do you write 3,246.78 in expanded form using base 10
tankabanditka [31]
3x1000+2x100+4x10+6x1+7x(1/10)+8x(1/100)
5 0
3 years ago
Sophia is going to invest $7,900 and leave it in an account for 6 years.
ehidna [41]

Answer:

r= 2.90%

Step-by-step explanation:

delta math

4 0
3 years ago
Other questions:
  • For every 9 tarts the bakery sells 2 go to waste, they sell 45 in one week. How many goes to waste
    10·1 answer
  • Find the range from 4 to –2.<br><br><br> 6<br><br> –2<br><br> 4<br><br> 2
    13·2 answers
  • Mr. Jones has three tables in his classroom. Each table has four
    6·2 answers
  • What is the equation of the line that has a slope of -3 and passes through the point (4,-2)
    9·1 answer
  • Given this function: f ( x )=−2cos(4 πx ) Find the following:
    5·1 answer
  • what is the length of the diagonal of a non-regulation tennis court with length 20 feet and width 15 feet?
    8·2 answers
  • Is 1.36 a rational number or irrational number
    7·2 answers
  • Tia is making strawberry lemonade for a baseball tournament. The recipe calls for 2
    15·2 answers
  • What is the area of a greeting card that is 1/4 foot wide by 1/3 foot tall
    9·2 answers
  • You would like to start a club for psychology majors on campus, and you are interested to find out what proportion of psychology
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!