What is the answer for my khan academy homework

Answer:

(7 , 5)

Step-by-step explanation:

Add all the x-axis then divide by 3

7 + 3 + 11 = 21

21/3 = 7

Add all the y-axis then divide by 3

9 + 3 + 3 = 15

15/3 = 5

So answer will be (7,5)

The coordinates of the centroid of triangle ABC.

(x, y)

Where,

x = Sum all the x-coordinates of the vertices ÷ 3

y = Sum o

The coordinates of the centroid is (7, 5).

It is a two-dimensional figure which has three sides and the sum of the three angles is equal to 180 degrees.

We have,

The vertices of the triangle in the diagram below are:

A(7,9), B(3,3), and C(11,3).

Now,

The coordinates of the centroid of triangle ABC.

(x, y)

Where,

x = Sum all the x-coordinates of the vertices ÷ 3

y = Sum of the y-coordinates of the vertices ÷ 3

Now,

x = 7 + 3 + 11 / 3 = 21/3 = 7

y = 9 + 3 + 3 / 3 = 15/3 = 5

Now,

The coordinates of the centroid is (7, 5).

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Answer:

u = -10

Step-by-step explanation:

Hope this helps! I pray that you get it right and that I get brainliest plzzzz. Thanks!!

Answer:

5.25 miles

Step-by-step explanation:

0.75*5=3.75

0.5*3=1.5

3.75+1.5=5.25

Answer:

To get the radius, divide the diameter by 2.

Answer:

to get the radius you have to divided the diameter by 2

Step-by-step explanation:

Answer:

Tell ur teacher to stop ignoring you 23

Step-by-step explanation:

ur welcomw 32

Answer:

p= 11/4

Step-by-step explanation:

Answer:

y = 7x + 1

Step-by-step explanation:

This is the most viable option because m=7/1 and the y intercept is y=1

The error is the sign of Inequality.

For Inequality, when the variable has negative coefficient, moving to another side would cause the Inequality symbol/sign to swap.

Therefore, from x>=-3 as it should be x<=-3

Answer:

The slope of the line represented by the following equation is -4

y-intercept: −1

Answer:

3 1/2  miles each practice

Step-by-step explanation:

Answer:

3 1/2

Step-by-step explanation:

divide the fraction like 4/5 and I'll give you decimal form and you could tell which one was bigger very quickly

Answer:

yes

Step-by-step explanation:

Answer:

what about it??

Step-by-step explanation:

Answer:

WHATS THE QUESTION

Step-by-step explanation:

IF YOU WERE WONDERING IT GOT DISCOUNTED BY 3$, OR 30%

Answer: 3

Step-by-step explanation:

1. 2²=4

2. 4*5=20

3. 180/20=9

4. √9=3

Hope this helped :)

Answer:

x = 3

Choice 2

Step-by-step explanation:

180 = 2^2 * x^2 * 5

180 = 20x^2

9 = x^2

x = 3

Checking:

180 = 2^2 * 8^2 * 5

180 = 4 * 9 * 5

180 = 36 * 5

180 = 180

y = -1.5x + 3 is the equation of the line

The general form of the equation of a line is y = mx + b,

where m is the slope of the line and b is the y-intercept (the point at which the line crosses the y-axis).

slope (m) = (y2-y1)/(x2-x1)

From the graph: x1 = 0, y1 =3 and x2 = 2, y2 = 0

m = (0-3)/(2-0) = -3/2 = -1.5

From the graph: b = 3

Therefore, the equation of the line is y = -1.5x + 3

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Answer: First Option | 2 x 10^1

Reason: After doing 6.4 divided by 3.2, you get 2, and finally you subtract 10³ by 10². And after that subtraction, you get 10^1, Therefore the answer is the first option.

I hope this helps, and Happy Holidays! :)

Step-by-step explanation:

[tex]y = {2.5}^{2} - 2(2.5) - 3 [/tex]

-1.75

Here we need to learn how to read a graph.

In a normal graph we have the inputs (the values of x) in the horizontal axis and the outputs in the vertical axis.

Here we want to see what is the value of y for the blue graph when x = 2.5

We will find y = -1.5

(the blue graph is the one that corresponds to: y = x^2 - 2x - 3)

To find this:

The first thing we need to do is find x = 2.5 in the horizontal axis.

Now that we found it, we need to draw a vertical line, and see at which point of the blue graph this vertical line intersects the curve. At that point we draw an horizontal line that intercepts the vertical axis.

At that point we have the y-value

You can see an example of this, a good estimation by only looking at the graph is y = -1.5

For the other point, the value of x when y = 1.

We do exactly the same thing but in the inverse order, we first find y = 1

Then we draw an horizontal line that intercepts the graph

Then we draw a vertical line that intercepts the x-axis and we find the value.

We can see that for y = 1 we have x = 3.2 aprox.

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Answer:

The best way to help is to get some water or get some sleep.It is either because you didn't get enough sleep or that you are dehydrated.

Step-by-step explanation:

Answer:

Drink a soda the instant you feel one coming on- sugar and caffeine tend to help.

If you can, try a good chiropractor- they can do adjustments that help with so many things including splitting headaches.

Try an OTC medicine.

sleep, dark, quiet, calm- try not to think too much and stay hydrated. maybe try carbonated water.

try to massage your neck yourself. it could help.

try to use a cold or a hot compress on your head.

Bananas. A tried and true natural headache reliever, bananas have potassium, magnesium, B vitamins, and complex carbohydrates, all components that contribute to headache relief.

The taste and smell of green apples have shown to help dim or lessen the intensity of migraines.

Hot packs and heating pads can relax tense muscles. Warm showers or baths may have a similar effect. Drink a caffeinated beverage. In small amounts, caffeine alone can relieve migraine pain in the early stages or enhance the pain-reducing effects of acetaminophen (Tylenol, others) and aspirin.

Step-by-step explanation:

avoid blue light from screens.

Answer:

64

Step-by-step explanation:

Answer:

64

Step-by-step explanation:

80% * 80 = 64

Answer:

1

Step-by-step explanation:

Answer:

The tides change as the three interact.

Step-by-step explanation:

When the sun, moon, and Earth are in alignment (at the time of the new or full moon), the solar tide has an additive effect on the lunar tide, creating extra-high high tides, and very low, low tides—both commonly called spring tides.

Answer:

55

Step-by-step explanation:

220 divided by 4, is 55.

Step-by-step explanation:

3 supervisors = 60 employees

=> 264 supervisors = 60 * (264/3) = 5,280 employees. (C)

Answer:

D.

Step-by-step explanation:

You see, this is simple division. Let's divide it.

-35/-7 = -42

_____________________

Don't let the other options confuse you. negative dividing is just the same as regular, just negative ^^

Answer:

32

Step-by-step explanation:

2x-16 + 4x+4 =180

6x=180+12

6x=192

x=32

I hope this helps, have a good day