a) if AB = CD, then 3CD = 3(CD + 1) NOT TRUE
example: AB = CD = 1, then 3CD = (3)(1)=3 and 3(CD + 1) = 3(1 + 1) = 3(2) = 6
b) if AB = CD, then AB - CD = A - C + B - D NOT TRUE (it does not make sense because A, B, C and D are points)
c) if AB = CD, then AB + EF = CD + EF TRUE
because
AB = CD |add EF to both sides
AB + EF = CD + EF
d) if AB = CD, then 2AB = 2A + 2B NOT TRUE (it does not make sense because A and B are points).
Answer:
x = 9; This problem is also true because 5x + 45 is equal to 5x + 45
Step-by-step explanation:
First you would distribute 5 into x and 9
5x + 45 = 5x + 45
Then we would divide both 45 on both sides by 5
5x + 45 = 5x + 45
÷5 ÷5
---------------------------
x = 9
Hope this helps! Please mark brainliest! Have a great day!
Answer:
Step-by-step explanation:
Retangle
Thanks hope this helped
Answer:
es una fracción mixta
Step-by-step explanation:
3 2/5
