Answer:

Step-by-step explanation:

Hope this helps.
Answer:
the first one
Step-by-step explanation:
Here is the first sign that should tell you this isn't a rectangle.
d=_/w^2+l^2 is the equation to solve the diagonal of a rectangle
if you plug in 21 and 20, d would equal 29 not 28 so for that reason alone it is not a rectangle.
I am about 90% sure the correct answer is B. I hope this helps let me know if I was right.
Option B!
Answer:
-39/4 decimal form is -9.75 mixed number form is -9 3/4
Step-by-step explanation:
Answer: The answer is five! I hope this helps.
d= √
(4−1)2+(6−2)2
d= √
(3)2+(4)2
d= √
9+16
d= √
25
d=5