Answer:
7
Step-by-step explanation:
Answer:
The measure of angle BED is 78°
Step-by-step explanation:
Hopefully you can see what I did there.
Answer:
9% sales tax
Step-by-step explanation:
44.10/490 =
.09
.09 as a percentage is also 9%
Answer:
5.7* 10 to the power of 4
If two sets are same let a and bthen we can say a= b
according to definition of intersection it is function that contains common enements from both setsas a=b so all elemnts are commonso a= a n bor b = a n b
in union the function has all elements of both sets and in set no element repeats so
a u b = aor a u b = b
as a u b = a or b and a n b = a or b so we can conclude here that
a u b = a n b as a = b // defined above