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3 years ago

A teacher is making a seating chart in order to group his class of 30 students. He puts 5 students in each group.

Mathematics

1 answer:

Irina18 [472]3 years ago

5 0

Answer:

he should divide to find how many students

Step-by-step explanation:

30 ÷5=6

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For this graph, mark the statements that are true.

lara [203]

The true statements for this graph are:

B. The domain is the set of all real numbers.

D. The range is the set of all real numbers greater than or equal to zero.

<h3>What is a domain?</h3>

A domain can be defined as the set of all real numbers for which a particular function is defined. For this graph, the vertex of the parabola is (1, 0) and as such, the equation will be given by:

y = (x - h)² + k

y = (x - 2)² + 0

y = x² -4x + 4

Therefore, the graph's domain include a set of all real numbers.

<h3>What is a range?</h3>

A range refers to a set of all real numbers that connects with the elements of a domain. For this graph, we can observe that only real numbers greater than or equal to zero (0) are connected to the values on the x-axis of the domain.

In conclusion, we can logically deduce that the true statements for this graph are:

Its domain include all real numbers.

Its range include all real numbers that are greater than or equal to zero (0).

Read more on domain here: brainly.com/question/17003159

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2 years ago

Help plz 30 pts who solve

Zielflug [23.3K]

Answer:

The first question of the answer is d (2.6)

Step-by-step explanation:because, 4.5 x 3 = 13.5, 0.5 x 2 = 1, 1.5 x 2 = 3, and 2.5 x 2 = 5 and I add 13.5 + 3.5 + 1 + 5 + 3 and then i divid 26 and 10 and I got 2.6 in total im not lying.

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3 years ago

How many possible finishes would leave your friend out of the medal standings?

My name is Ann [436]

We need explaining and examples not just the question

4 0

3 years ago

PLEASE HELP ME WITH THIS!!!!!

nadezda [96]

For the given experiment of spinning a spinner and drawing a card, we will see that:

A) Yes, the events are independent.
B) P(3 and A) = 1/16
C) P(5 and C) = 0
D) P(4) = 1/4
P(B or C) = 1/2
E) P(3 and not D) = 3/16

<h3>What are independent events?</h3>

We say that two events are independent if the outcome of one does not affect the outcome of the other.

In this case, the outcome of the spinner clearly does not affect the outcome of the card draw, so the events are independent.

<h3>How to get the probabilities?</h3>

B) First we want to get the probability of getting 3 and A.

The probability of getting a 3 when drawing a card is given by the quotient between the numbers of card with the number 3 (only one) and the total number of cards, so we have:

p = 1/4

Similar for the case of the spinner, the letter A appears twice, and there are a total of 8 letters, then the probability is:

q = 2/8 = 1/4

The joint probability is the product of the two individual probabilities, we have:

P(3 and A) = p*q = 1/4*1/4 = 1/16

C) The probability of getting a 5 and the letter C is 0, because there is no card with the number 5.

D) P(4) is the probability of drawing the card with the number 4, this is:

p = 1/4

P(B or C) is the probability of spinning the letter B or C. There are 2 B's and 2 C's, and a total of 8 letters, so the probability is:

q = (2 + 2)/8 = 1/2

E) P(1 and not D) is equal to: P(1 and A or B or C).

P(1) is 1/4.

P(A or B or C) is 6 over 8 (because there are 6 cards that are either an A, a B, or a C)

Then the joint probability is:

P(1 and not D) = (1/4)*(6/8) = 3/16

If you want to learn more about probability, you can read:

brainly.com/question/251701

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2 years ago

An artist takes 5 hours to draw 8 portrits. the artist works at a constant rate

ch4aika [34]

Dont think you finished the problem?

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3 years ago