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
Olin [163]
3 years ago
13

Multiplying complex number I need help on 7 & 8

Mathematics
1 answer:
Alexxandr [17]3 years ago
3 0

Answer:

7.  35i^2 - 46i + 15

8. -15i^2-i -40

Step-by-step explanation:

hope this helps. :)

You might be interested in
Morty buys and sells computer parts
mart [117]

Answer:

  • <em>1. Morty's total cost for the items he purchased was </em><u><em>$210</em></u>
  • <em>2. Morty's revenue from the sale of the items was </em><u><em>$547</em></u>
  • <em>3. Morty's Total profit was </em><u><em>$337</em></u>

<em />

Explanation:

The complete question is:

<em>Morty buys and sells computer parts. He bought two monitors for $25 each and later sold them for $88 each. He bought four cases for $15 each and later sold them for $24 each. He bought five memory modules for $20 each and later sold them for $55 each.</em>

<em />

  • <em>Morty's total cost for the items he purchased was</em>
  • <em>Morty's revenue from the sale of the items was</em>
  • <em>Morty's Total profit was </em>

<em />

<h2><em>Solution</em></h2>

<em />

<u><em>1. Morty's total cost for the items he purchased was</em></u>

<em />

Build a table with the number of parts and their costs:

Component         Amout    Unit cost  Total cost

                                               $                 $

Monitors                2             25                50

Cases                     4             15                 60

Memory                  5             20               100

Total cost = $50 + $60 + $100 = $210

<u><em>2. Morty's revenue from the sale of the items was</em></u>

<em />

Build a table with the number of parts and their selling prices:

Component         Amout    Unit price  Total cost

                                               $                 $

Monitors                2              88               176

Cases                     4              24                96

Memory                  5             55              275

Total revenue: $176 + $96 + $275 = $547

<u><em>3. Morty's Total profit was </em></u>

<em />

The total profit is the total revenue less the total cost: $547 - $210 = $337.

8 0
3 years ago
Hexagon ABCDEF has has vertices A(-2,4), B(0,4), C(2,1), D(5,1), E(5,-2), F(-2,-2). Sketch the figure on the coordinate plane. W
Andreyy89
<span>A regular hexagon is defined as a hexagon that is both equilateral and equiangular. It is bicentric, meaning that it is both cyclic (has a circumscribed circle) and tangential (has an inscribed circle). The common length of the sides equals the radius of the circumscribed circle, which equals {\displaystyle {\tfrac {2}{\sqrt {3}}}} {\displaystyle {\tfrac {2}{\sqrt {3}}}} times the apothem (radius of the inscribed circle). All internal angles are 120 degrees. A regular hexagon has 6 rotational symmetries (rotational symmetry of order six) and 6 reflection symmetries (six lines of symmetry</span>
8 0
3 years ago
I NEED HELP ASAP PLSS
julsineya [31]
3631 is the answer trust
8 0
3 years ago
Find the value of k that makes f(x) continuous at x = -1
lozanna [386]

Answer:

e

Step-by-step explanation:

3 0
2 years ago
Read 2 more answers
If you know the answer plz help
Nuetrik [128]

Answer:

I think that it will be (6)

6 0
3 years ago
Other questions:
  • The smallest value in a data set is the _______________.
    10·1 answer
  • 5+10-2•3<br><br> A 39 <br><br> B 9<br><br> C 29 <br><br> D 19
    15·2 answers
  • Melinda wants to paint exterior lateral surface of her house it is 9 ft high and has a perimeter of 140 ft each gallon of paint
    9·1 answer
  • The equivalent resistance of R1 = 1000 ohms and R2 = 1500 ohms connected in parallel is _____ ohms.
    12·1 answer
  • Find 91.2 divided by 10.
    11·2 answers
  • Explain why you can find 5÷1/3 by multiplying 5 by 3.
    15·1 answer
  • HOW MANY TIMES DOES 3 GO INTO 15
    9·2 answers
  • Which statements are true for the following expression? (19 + 11) · 15 Check all that are true. All factors are the sum of two t
    15·2 answers
  • Round Decimals - Quiz - Level E
    5·1 answer
  • The measure of central tendency most influenced by outliers is the ______. a. mode b. median c. mean d. variance
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!