Our knowledge of a lot of things is most likely to change...because if there is new discoveries and better technology ..then scientist will most likely find out things that they didn't know before....hope this helps!

4 0

3 years ago

Sports and music that originated as isolated folk customs spread to popular culture through

strojnjashka [21]

Globalization. Hope this helps:)

5 0

3 years ago

Find the coordinates of the missing endpoint if W is the MIDPOINT of XY.<br><br> W(4,-2) X(7,-4)

My name is Ann [436]

Answer:

The coordinates of the missing point if W is the midpoint of XY is $Y(x,y) =(1,0)$ .

Explanation:

From Linear Algebra we define the location of midpoint by the following expression:

$W(x,y) = \frac{1}{2}\cdot X(x,y)+\frac{1}{2}\cdot Y(x,y)$ (1)

Where:

$X(x,y)$ , $Y(x,y)$ - Endpoints of the line segment, dimensionless.

$W(x,y)$ - Midpoint, dimensionless.

If we know that $W(x,y) =(4,-2)$ and $X(x,y) = (7,-4)$ , then the location of the point Y is:

$Y(x,y) = 2\cdot W(x,y) -X(x,y)$

$Y(x,y) = 2\cdot (4,-2)-(7,-4)$

$Y(x,y) = (8,-4)-(7,-4)$

$Y(x,y) =(8-7,-4+4)$

$Y(x,y) =(1,0)$

The coordinates of the missing point if W is the midpoint of XY is $Y(x,y) =(1,0)$ .

3 0

3 years ago