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MAXImum [283]
3 years ago
12

A survey revealed that 31% of people are entertained by reading books, 39% are entertained by watching TV, and 30% are entertain

ed by both books and TV. What is the probability that a person will be entertained by either books or TV
Mathematics
1 answer:
tester [92]3 years ago
3 0
1% entertained by books
9% entertained by TV
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How to do angles like vertical and congruent
Talja [164]
The angles have to have a 90 degree angle , and they have to be equal too
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3 years ago
Read 2 more answers
Ron finds 9 books at a bookstore that he would like to buy, but he can afford only 5 of them. In how many ways can he make his s
olga55 [171]

Answer:

d. 126; 70

Step-by-step explanation:

given that Ron  finds 9 books at a bookstore that he would like to buy, but he can afford only 5 of them.

Out of 9 books he has to select 5 of them

Here selection of books can be done in any order.  Hence order does not matter

No of ways he selects 5 books out of 9 books = 9C5

= 126

Part II

One book is a must

Hence he has options only 4 books from the remaining 8.

No of ways when one book is compulsory = selecting 3 books from 8 books

= 8C4

= 70

Option d is right.

6 0
3 years ago
Use the Associative Property of Addition to write an expression equivalent to (n + 2) + 7. Which expression is equivalent to (n
insens350 [35]

Answer:

The correct answer is OB.

Step-by-step explanation:

Let us recall the Associative Property of Addition: given three real numbers a, b and c the following equality holds:

(a+b) + c = a+(b+c).

Let us remark that the Associative Property of Addition tells us that we can perform the sums in any order.  So,

(n+2)+7 = n+(2+7).

In the other options there was used the Commutative Property of Addition.

6 0
4 years ago
8. A computer application generates a sequence of musical notes using the function f(n) 6(16)", where n is the
s2008m [1.1K]

Applying an exponential property, it is found that the function that will generate the same note sequence as function f(n) is given by:

B. H(n) = 6(2)^{4n}

<h3>What is function for the note sequence?</h3>

The function for the node sequence is defined by:

f(n) = 6(16)^n

A function that will the same note sequence as function f(n) has the same initial value of 6. Additionally, applying an exponential property, we have that:

H(n) = 6(2)^{4n} = 6(2^4)^n = 6(16)^n

Hence option B is correct.

More can be learned about exponential properties at brainly.com/question/25537936

#SPJ1

3 0
2 years ago
Could side D be the base? If so what side would be the hight?
kodGreya [7K]

Answer: Yes, the highest side would be F

4 0
3 years ago
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