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3 years ago

How many times does 2 go into 18 and how many times does 3 go into 27

Mathematics

2 answers:

gregori [183]3 years ago

4 0

2 goes into 18 nine times.
3 goes into 27 nine times.

Serggg [28]3 years ago

3 0

2 go into 18 9 times
and 3 go into 27 9 times

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Jasper is giving four non-collinear points. How many different triangles can he draw using these points?

kotegsom [21]

Answer:

Step-by-step explanation:

There are 4 ways to ignore one of the points. The other 3 can be connected to form a triangle.

_____

More formally, the number of ways that 4 items can be chosen 3 at a time is given by ...

... C(4, 3) = 4!/(3!(4-3)!) = 4/1 = 4

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3 years ago

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Kipish [7]

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3 years ago

What is the formula to find distance in coordinate geometry, given coordinates (x_1, y_1), (x_2, y_2)? (valid variables for this

madreJ [45]

Answer:

The distance formula is: $d=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}$

Step-by-step explanation:

Given:

Two points on a coordinate plane are given as:

$(x_1,y_1)\ and\ (x_2,y_2)$

Now, let the points be $A(x_1,y_1)\ and\ B(x_2,y_2)$ and let 'd' be the distance between the two points.

Now, join the points A and B to make a line segment AB.

Also, draw a right angled triangle ABC right angled at point C. Point C is is the intersection of horizontal and vertical lines drawn from points A and B respectively as shown in the figure below.

From the triangle ABC, we observe that:

AB = $d$

AC = $x_2-x_1$

BC = $y_2-y_1$

Now, we use Pythagoras theorem to find 'd'. This gives,

$AB^2=AC^2+BC^2\\\\d^2=(x_2-x_1)^2+(y_2-y_1)^2$

Now, taking square root on both sides, we get:

$\sqrt{d^2}=\pm\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}\\\\d=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}$

Ignoring the negative result as distance can never be negative.

Therefore, the formula to find distance in coordinate geometry, given coordinates $(x_1, y_1), (x_2, y_2)$ is:

$d=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}$

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3 years ago

snow is falling steadily inside of Syracuse New York after 2 hours and 4 in of snow has fallen using tea for the time it's as fo

eimsori [14]

If in 2 hours 4 inches of snow fell, that means that it’s going 2 per hour. u could use 1=2x

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3 years ago

The side of a square measures 3mn^2. What is the area of the square if m=4 and n= -2

Effectus [21]

Your question was wrong. I had to watch the photo.

-2²=4
4(4)=16
16(3)=48
48²=2304

When I read your text I though this:
4(-2)=-8
-8(3)=-24
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576²=331 776

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3 years ago