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
Radda [10]
2 years ago
8

Please solve the following complex number system ASAP, show work and please simplify fully.

Mathematics
1 answer:
Illusion [34]2 years ago
7 0

Answer:

x= 16±√-64 over 2

Step-by-step explanation:

x= -(-16)±√(-16)²-4×1×80 over 2×1

x= 16±√256-320 over 2

x= 16±√-64 over 2

can also be represented with all real numbers.

You might be interested in
Suppose y varies inversely with x. Write an equation if y=7 when x=-4
luda_lava [24]

Answer:

y = -28 ÷ x

Step-by-step explanation:

The standard format of a inversely proportional equation goes by the format of y = k ÷ x. The question asks us to write an equation if y = 7 when x = -4 and y varies inversely with x.

So we substitute the values y = 7 and x = -4 in the equation y = k ÷ x

K = constant, we have to work this out

7 = k ÷ -4

7 × - 4 = k

k = - 4 × 7

k = -28

k = -28 So then we put this back into the original y = k ÷ x to find our final equation which is y = -28 ÷ x

3 0
3 years ago
The bells are adding a new room to their house. The room will be a cube with volume 8,000 ft^3. They are going to put in hardwoo
Mandarinka [93]

Answer:

$4000

Step-by-step explanation:

Given that :

Volume of cube = 8000 ft³

Charge per ft² = $10

Recall, volume of a cube = a³

Where a = edge

Hence,

a³ = 8000

Take the cube root of both sides

a = 20

Hence,

Volume = 20 * 20 * 20

The Area of the floor will be :

20 * 20 = 400 ft²

If charge per ft² = $10

400 ft² = ($10 * 400) = $4000

8 0
2 years ago
Lee takes 7 hours to mow all of the yards on his block. If his brother JJ helps him, they are able to do the same job in 3 hours
adelina 88 [10]

It will take JJ 4 hours to mow all of the yards in his block alone

4 0
3 years ago
The virus is already 28% loaded. If it's loading at a rate of 12% every 10 minutes, how much time do we have before it is 100% l
KIM [24]
You will have 40 minutes before it it’s 100% loaded
4 0
2 years ago
How r u so good at this
iren [92.7K]

Answer:

Step-by-step explanation:

Good at what?

4 0
2 years ago
Read 2 more answers
Other questions:
  • Can someone help me with (2/3 +1/4) • 5/6
    9·2 answers
  • I need help on this problem please help
    13·1 answer
  • How do I solve this?
    10·1 answer
  • If 4 is subtracted from twice a number the result is 10 less than the number
    11·1 answer
  • Alfred has two cans containing biscuit dough. The cans are cylindrical and their dimensions (in inches) are as follows. • Can A:
    15·1 answer
  • A group of students were surveyed to find out if they like bike riding and/or roller skating as a hobby. The results of the surv
    8·1 answer
  • If two sides of a triangle measurement 8cm 12cm what is the range of the third side
    8·1 answer
  • 4.) Fill in the table to show a proportional relationship and then identify the
    5·1 answer
  • If you were going to represent the top view of the figure, state which boxes should be shaded.
    12·2 answers
  • Solve (4x – 3) > 5 for x.
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!