The number line below represents which combined inequality?
2 answers:
Answer with explanation:
Description about Number line:
→Number line with a closed circle on negative 2, shading to the left and a closed circle on 4, shading to the right.------(1)
⇒Taking the fragment of the above sentence,"till shading to left" and describing it in terms of Inequality
x ≤ -2-------(2)
x∈(-∞,-2]
And,Now writing another half of the sentence--(1) in terms of inequality,
x≥4---------(3)
x∈[4,∞)
Why i have ,taken equal to sign into consideration, the reason is that the two circles which are marked on -2 and 4, tells us that these points must be considered,while writing inequality
Combining ,(2) and (3),we get
⇒x less than or equal to −2 or x greater than or equal to 4
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Answer:
45% probability that a randomly selected customer saw the advertisement on the internet or on television
Step-by-step explanation:
We solve this problem building the Venn's diagram of these probabilities.
I am going to say that:
A is the probability that a customer saw the advertisement on the internet.
B is the probability that a customer saw the advertisement on television.
We have that:
In which a is the probability that a customer saw the advertisement on the internet but not on television and is the probability that the customers saw the advertisement in both the internet and on television.
By the same logic, we have that:
12% saw it on both the internet and on television.
This means that
20% saw it on television
This means that
37% of customers saw the advertisement on the internet
This means that
What is the probability that a randomly selected customer saw the advertisement on the internet or on television
45% probability that a randomly selected customer saw the advertisement on the internet or on television