Answer:
Step-by-step explanation: a real one for the points
Answer:
b) ( N c ∩ D ) ∪ ( N ∩ D c )
Step-by-step explanation:
Let's see each option:
a) N ∪ D
This includes those who likes both, so this is not correc.t
b) ( N c ∩ D ) ∪ ( N ∩ D c )
Nc is the complement of N. That is those who do not subscribe to news magazine. Intensected with D, those are who do not subscribe to the news magazine but do to the daily informer. By the same logic, the second intersection are those who do subscribe to news magazine but not to the daily informer. This is the correct answer
c) N c ∩ D
This includes only those who subscribe to the daily informer but not to the news maganize. It also needs those who subscribe to the news magazine but not to the daily informer.
d) ( N ∩ D )c
This also involves those who do not subscribe to any of these news sources.
e) ( N c ∪ D ) ∩ ( N ∪ D c )
Wrong... Intersection of those who subscribe to the daily informer but not the news magazine and those who subscribe to the news magazine but not to the daily informer. This is the empty set.
Answer:
11
Step-by-step explanation:
2r - 7 = 15
2r = 15 + 7
2r = 22
r = 22 / 2
r = 11
Answer:
The ratio of red to yellow blocks = 24:8 = 3:1
The ratio of green to blue blocks = 16:12 = 4:3
The ratio of purple to total blocks = 20:60 = 1:3
Step-by-step explanation:
(would appreciate it if you could mark me the brainliest:))
The publisher sold 1000 times as many as scientific book than the mystery book.
<h3>How to find the number of times scientific books sale than the mystery books?</h3>
The publisher sells 10⁶ of a new science fiction book and 10³ copies of a new mystery book.
Therefore, let's convert the sales to an integer.
sales of the new science fiction book = 10⁶ = 1000000
sales of the new mystery book = 10³ = 1000
Hence, the number of many scientific books sold than the mystery books can be calculated as follows:
Therefore,
number of scientific books sold than the mystery books = 1000000 / 1000
number of scientific books sold than the mystery books = 1000
Therefore, the publisher sold 1000 times as many as scientific book than the mystery book.
learn more on sales here: brainly.com/question/24791391
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