Answer:
should look like this
Step-by-step explanation:
equations are y=x and y = -x if needed
You use variables for the equation and after you find out the variables you set them equal to each other and see if they are equal
Answer:
ΔDEF is not a right triangle because no two sides are perpendicular.
Step-by-step explanation:
The coordinates of the vertices of ΔDEF are given to be D(-4,1), E(3,-1) and F(-1,-4).
Now length of DE is given by
units
length of EF is given by
units
and length of FD is given by
units.
Therefore, 53 ≠ 25+34
Hence, the length of the sides does not support the Pythagoras theorem.
So, ΔDEF is not a right triangle because no two sides are perpendicular. (Answer)
Answer:
8X2-38X-380
Step-by-step explanation:
(2x+10)(4x-38)
Expand the brackets.
2X(4X-38)+10(4X-38)
Multiple the inner ones by the outer ones
(2X)(4X)-(38)(2X)+(10)(4X)-(10)(38)
=> 8X2-78X+40X-380
8X2-38X-380
1. 314.15%
2. 314.1%
3. 314%
4. 314%
5. 314%