The coordinates of the vertices of a def are d(-4,1), e(3. – 1), and f(-1, – 4)
which statement correctly describes whether a def is a right triangle?
o
a def is not a right triangle because no two sides are perpendicular.
a def is a right triangle because de is perpendicular to ef
a def is a right triangle because df is perpendicular to ef
a def is a right triangle because de is perpendicular to df

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)

e.

step-by-step explanation:

because there are always 10 numbers in a phone number.

hi there!

first we need to find out how much they are adding to each number to make the next number.

ex: 4 + 4 = 8, 8 + 8 = 16, and so on.

so continuing with 32,

32 + 32 = 64

64 + 64 = 128

128 + 128 = 256

256 + 256 = 512

4, 8, 16, 32, 64, 128, 256, 512

the 8th term of the sequence will be 512

hope this ! ~