Answer:
B
Step-by-step explanation:
angle 5 and angle 7 will add up 180
since angle 5 is congruent to angle 1 then angle 5 equals 120
angle 7 will come out to 60 degrees
180-120=60
The basic deal is a^2 + b^2 = c^2
A= incorrect, 81 + 100 does not equal 121.
B= incorrect, 64 + 144 does not equal 256.
C= incorrect, 256 + 1024 does not equal 1280
This leaves D.
D must be a right triangle.
The distance is 101.
The only coordinate that changes is the y-coordinate; it goes from 2 to 103:
103-2=101
(x+y)(x+2y)
Hope this helps! (:
Let i = sqrt(-1) which is the conventional notation to set up an imaginary number
The idea is to break up the radicand, aka stuff under the square root, to simplify
sqrt(-8) = sqrt(-1*4*2)
sqrt(-8) = sqrt(-1)*sqrt(4)*sqrt(2)
sqrt(-8) = i*2*sqrt(2)
sqrt(-8) = 2i*sqrt(2)
<h3>Answer is choice A</h3>
