Answer:
b = √a² + c² is incorrect and different from other 3
Step-by-step explanation:
Answer:
so you distrubute the 3 into the parenthesis and you then get 3n+15 is greater than or equal to 3n+8 then you subtract the 3n from the right side from the 3n on the left side and you are left with 15 is greater than or equal to 8
Step-by-step explanation:
7.772 million people live in Cairo.
658,893 people live in Washington DC.
So it's false.
Answer:
Johnny is wrong.
Step-by-step explanation:
Johnny is wrong.
A better definition would be: 
is the set of all elements that belong to at least one A or B.
So, the elements that belong to both A and B, like c and d in this exercise, also belong to .
So:
Answer:
272?
Step-by-step explanation:
10 x 8 = 80
12 x 16 = 192
192 + 80 = 272.
Not sure
