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WARRIOR [948]
3 years ago
10

In which quadrant is the number 6 – 8i located on the complex plane? I II III IV

Mathematics
2 answers:
Aleksandr [31]3 years ago
8 0

D: IV

You can go very far down

Marrrta [24]3 years ago
5 0

Answer:

IV

Step-by-step explanation:

The 6 is to the right of the  x axis ( positive x) and the -8i is  below the x axis to the right.

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Vanyuwa [196]

Answer:

centre = (2, - 1), radius = 6

Step-by-step explanation:

Rearrange the equation by placing the x and y terms together and adding 31 to both sides

Given

x² + y² - 4x + 2y - 31 = 0, then

x² - 4x + y² + 2y = 31

Use the method of completing the square

add ( half the coefficient of the x/y term )² to both sides

x² + 2(- 2)x + 4 + y² + 2(1)y + 1 = 31 + 4 + 1

(x - 2)² + (y + 1)² = 36

The equation of a circle in standard form is

(x - h)² + (y - k)² = r²

where (h, k) are the coordinates of the centre and r the radius

compare to (x - 2)² + (y + 1)² = 36, then

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3 years ago
What is the equation of the line that passes through (-2,-3) and is perpenicular to 2X -3Y= 6
Rufina [12.5K]
You should first of all rewrite the equation in slope intercept form. You should get y=2/3x-2. The perpendicular slope is the opposite reciprocal, in this case -3/2. You will use this slope and the point to write your equation in point slope form and then clean this up to get it into slope intercept form. You should get y=-3/2x-6
5 0
3 years ago
The population of Stark county this year is 7,921 people. Last year the population was 7,547 people. Find the approximate percen
Sholpan [36]

Answer:

Option (C)

Step-by-step explanation:

To determine the population we use the formula,

P_n=P_0(1+r)^{n}

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Now we substitute these values in the formula,

7921=7547(1+r)^1

\frac{7921}{7547}=(1+r)

r = 1.0496 - 1

r = 0.0496

r = 0.05

Therefore, percentage growth of the population of Stark county is 5%.

Option (C). will be the answer.

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3 years ago
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stellarik [79]

Answer

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3 years ago
Use the rules for long division to divide 262 by 9.
Pani-rosa [81]
The answer for this problem is b

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