- 5 1 / 3 divided by 2 3 / 4

How many three-digit numbers can you make if you are not allowed to use any other digits except 4 and 9?

alisha [4.7K]

Answer:

8

Step-by-step explanation:

That total is ...

(number of possibilities in each location)^(number of locations) = 2^3 = 8

The possible numbers are ...

444, 449, 494, 499

944, 949, 994, 999

There are 8 of them.

7 0

4 years ago

A menu has 9 options: chicken, steak, fish, broccoli, spinach, 2 types of carrots, and 2 breads.

lukranit [14]

The probability of ordering carrots is 2/9

4 0

3 years ago

What is another way to represent this solution set? {x | x < 4.5} {x | x ≤ 4.5} {x | x > 4.5} {x | x ≥ 4.5}

Sladkaya [172]

<u> </u><u>{x | x ≤ 4.5} </u><u> is another way to represent this </u><u>solution set.</u>

A set is open if every point in is an interior point. A set is closed if it contains all of its boundary points.

What is open set example?

An open subset of R is a subset E of R such that for every x in E there exists ϵ > 0 such that Bϵ(x) is contained in E.
For example, the open interval (2,5) is an open set. Any open interval is an open set. Both R and the empty set are open.

What is an example of a closed set?

The simplest example of a closed set is a closed interval of the real line [a,b].
Any closed interval of the real numbers contains its boundary points by definition and is, therefore, a closed set.
The closed interval [1,4] contains the limit points 1 and 4 so it is a closed set.

Then number-line shows a closed dot at 4.5. This shows that x is a number that is less than or equal to 4.5.

Learn more about closed set

brainly.com/question/23987756

#SPJ4

4 0

2 years ago

Name the angle that is supplementary to ∠COB

ZanzabumX [31]

Two adjacent supplementary angles form a line (they add up to 180 degrees).
The angle that is supplementary to COB is FOB because angles FOB and COB form a line.

Hope this helps =)

6 0

3 years ago

Read 2 more answers

A very short quiz has one multiple-choice question with five possible choices (a, b, c, d, e) and one true or false question. As

earnstyle [38]

<h3>a. The probability that both questions are answered </h3><h3>correctly = 0.1 </h3><h3>b. The probability that only one questions is </h3><h3>answered correctly = 0.5</h3><h3>c. The probability that none questions is </h3><h3>answered correctly = 0.4</h3><h3>d. The probability that only question 1 is </h3><h3>answered correctly = 0.1</h3><h3>e. The probability that only question 2 is answered</h3><h3> correctly = 0.4</h3>

Step-by-step explanation:

Here given: The quiz has two questions.

Question 1 is an Multiple Choice Question with 5 options, out of which only <u>one option is the correct option</u>.

So, the probability of answering the question 1 correctly = $(\frac{1}{5} ) = 0.2$

Question 2 is an true false question with 2 options, out of which only <u>one option is the correct option</u>.

So, the probability of answering the question 2 correctly = $(\frac{1}{2} ) = 0.5$

Now, let us consider each part asked:

a. The probability that <u>both questions are answered correctly </u>

= (0.2)(0.5) = 0.1

b. The probability that <u>only one questions is answered correctly </u>

= 1 - [both right or both wrong] = 1 - [0.1 + (0.5)(0.8)] = 1-[0.5] = 0.5

c. The probability that <u>none questions is answered correctly </u>

= P(not Q1) x P(not Q2) = (1- P(Q1) )(1- P(Q2)) = (1-0.5)(1-0.2) = 0.4

d. The probability that only<u> question 1 is answered correctly </u>

= P( Q1) x P(not Q2) = (1- P(Q1) )(P(Q2)) = (1-0.5)(0.2) = 0.1

e. The probability that only<u> question 2 is answered correctly </u>

= P( not Q1) x P( Q2) = (P(Q1) )(1- P(Q2)) = (0.5)(1-0.2) = 0.4

3 0

3 years ago