Answer:
In mathematics, the empty set is the unique set having no elements; its size or cardinality (count of elements in a set) is zero.
Hope this helps!
Step-by-step explanation:
2,365,*10^6=5,000,000*473
(P.S. 10^6 is 10 to the sixth power)
Answer:
x = 
Step-by-step explanation:
given
= 
( cross- multiply )
5(x + 1) = 33
5x + 5 = 33 ( subtract 5 from both sides )
5x = 28 ( divide both sides by 5 )
x =
X-the number
20 · x² = 20 · x |divide both sides by 20
x² = x |subtract x from both sides
x² - x = 0
x(x - 1) = 0 ⇔ x =0 or x - 1 = 0
Answer: x = 0 or x = 1
