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3 years ago

What’s the regions ?

Mathematics

2 answers:

Juli2301 [7.4K]3 years ago

7 0

Answer:

In Geography, regions are areas that are broadly divided by physical characteristics, human impact characteristics, and the interaction of humanity and the environment. Sorry didn't realize it was for math

shutvik [7]3 years ago

3 0

Answer:

In mathematical analysis, the word region usually refers to a subset of or that is open (in the standard Euclidean topology), connected and non-empty. A closed region is sometimes defined to be the closure of a region. Regions and closed regions are often used as domains of functions or differential equations.

Step-by-step explanation:

(I got this from the internet.)

You might be interested in

Number of emails received in one account every day from the day it was created until it was canceled:

3241004551 [841]

The answer is B. Complete information.

A sample means only part of the whole. From the day the email was created till it was cancelled is the whole population. Consider that no mails will no longer go in because it is closed so no more additional information or data will enter that category. So it would be considered as complete. If the situation were to ask from one point to another before it was cancelled it would be considered as a sample.

6 0

3 years ago

Solve the equation for y (y-3)^2=4y-12

Ket [755]

(y -3)^2 = 4y - 12

Expand.

(y-3)(y -3) = 4y - 12

y² - 6y + 9 = 4y - 12

y² - 6y -4y + 9 + 12 = 0

y² - 10y + 21 = 0

Factors are -7y and - 3y

y² - 10y + 21 = 0

y² - 3y - 7y + 21 = 0

y(y - 3) -7(y - 3) = 0

(y - 3)(y - 7) = 0

y-3 = 0 or y - 7 = 0

y = 0 + 3 or y = 0 + 7

y = 3 or 7

8 0

3 years ago

For the equation, 1/2x - 3 + 4, what would be the y-intercept?

ryzh [129]

Answer:

Step-by-step explanation:

the y-intercept is -1 since 4-3 is 1

3 0

3 years ago

Read 2 more answers

What is the radius of circle c

Oxana [17]

Answer:

radius = 13

Step-by-step explanation:

Look at the attached picture below. We can calculate radius with the help of the Pythagorean theorem. But first we have to find out the values of the two legs.

First let's find the shorter leg.

<u>Equidistant Chords Theorem</u>

Two chords are congruent if they are equidistant from the center.

Chords in the picture are congruent and that means that the distance from the center to each of them is the same!

Let's calculate the distance. But to get the distance we have to find x first.

Since the distances are the same:

$x + 3 = 2x + 1\\2 = x$

Therefore:

$\text{distance (short leg)} = 2x + 1 = 2\cdot2 + 1 = 5$

Let's focus on the longer leg. Since part of the radius is perpendicular to the chord, it actually bisects the chord! That means that the long leg is going to be a half of the length of the chord.

Therefore:

$\text{long leg} = \frac{\text{chord}}{2} = \frac{24}{2} = 12$

All that is left is the Pythagorean Theorem in the right triangle.

<u>Pythagorean Theorem</u>

$\text{hypotenuse}^2 = \text{leg}_1^2 + \text{leg}_2^2$

Hypotenuse in our case is the radius.

$\text{radius}^2 = 5^2 + 12^2\\\text{radius}^2 = 25 + 144\\\text{radius}^2 = 169\\\text{radius} = 13$

7 0

2 years ago

Solve 0=4x^2+12x+9 using the quadratic formula.

MAXImum [283]

The quadratic formula is $x = \frac{-b \pm \sqrt{b^2 - 4ac} }{2a}$ . With the values from this equation plugged in, it looks like this:

$x = \frac{-12 \pm \sqrt{12^2 - 4(4)(9)} }{2(4)} \\ \\ x = \frac{-12 \pm \sqrt{144 - 144} }{8} \\ \\ x = \frac{-12}{8} \\ \\ x = - \frac{3}{2}$

The solution is x = - 3/2

7 0

3 years ago