In a class of 19 students, 12 are female and 13 have an a in the class. There are 4 students who are male and do not have an a in the class. What is the probability that a student chosen randomly from the class does not have an a?.

Answers

Answer 1

Answer:

probability (student doesn't have an a)=6/19


Related Questions

Which correctly lists the three features shown in the photo? folds, strike-slip faults, and anticlines anticlines, synclines, and folds synclines, normal faults, and strike-slip faults normal faults, folds, and anticlines.

Answers

Anthe answer is A

Explanation:

The correct list of the three features shown in the photo are folds, strike-slip faults, and anticlines. The correct option is A.

What are folds?

On a geological timescale, modern folds are those that first appeared in the Tertiary Period (between 65 million and 2.5 million years ago). Geological formations known as faults are the result of internal forces that are inclined or vertical (top-down).

The transcurrent fault, which is also known as a horizontal fault, develops when there is movement in the horizontal plane between two blocks.

It is more prevalent in regions where two tectonic plates converge since these zones also experience horizontal movement. When two or more of the tectonic plates of Earth are forced together, fold mountains are formed.

Therefore, the correct option is A, folds, strike-slip faults, and anticlines.

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The question is incomplete. Your most probably complete question is given below: the image is added.

How critical thinking and problem shoving skills will help you in your early children education career ?

Answers

Answer: It will help them make better andmore mature choices in life.

Explanation:

it can help them make better choices and have a better life

Carbon cycles through the biosphere in all of the following except.

Answers

Answer:

Carbon cycles through the biosphere in all of the following processes EXCEPT: photosynthesis, transpiration, burning of fossil fuels, or decomposition of plants & animals

Which of the following is not a characteristic of the type b personality?.

Answers

Answer:

Is more emotional & perspective, laid back.

An informative presentation can be used for conducting a classroom discussion. Discuss strategies for engaging students when presenting a topic of discussion in a presentation.

Answers

An informative presentation is a type of presentation that serves specific audiences. In the classroom, an informative presentation must be instructive and edifying for all the students.

An informative presentation is a presentation useful for a specific audience (in this case, students), which should be ideally both instructive and edifying for all the audience.

Some useful tips that can help to achieve an informative presentation include:

Share storiesAdd videosPoll the classMake discussion extensive

An informative presentation always includes an enriching discussion, which means that the presentation should be interactive and involve students in the process.

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To leave the gravitational pull of the earth satellites must have at least.

Answers

Answer:

weight

Explanation:

hope it helps

How to make hydroxyquinoline at home with grapefruit and lemon.

Answers

Hydroxyquinoline CANNOT be made from grapefruit and lemon because it can only be synthesized and is not a natural compound.

With this in mind, we can see that hydroxyquinoline is usually used to salve the effects of a freshly cut cow udder as it is applied to soothe skin.

Furthermore, it can be chemically gotten when glycerol is mixed with 2-aminophenol alongside with sulphuric acid and this cannot be gotten from grapefruit and lemon.

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A 2-kg wood block is pulled by a string across a rough horizontal floor. The string exerts a tension force of 30 n on the block at an angle of 20º above the horizontal. The block moves at constant speed. If the block is pulled for a distance of 3. 0 m, how much work is done by the tension force?.

Answers

Only the horizontal component (the component parallel to the floor) of tension does work on the block. This parallel component has magnitude

(30 N) cos(20°) ≈ 28.2 N

and acts over a distance of 3.0 m, so it performs

(28.2 N) (3.0 m) ≈ 85 J

of work

In the Aeneid, how does the poet Virgil connect the story of Aeneas to the older tradition of Romulus?

Answers

Answer:

He is his ancestor

Explanation:

im almost postive thats the answer

You have set a closing date with a password. Can your client make changes and if so, how would you track any changes to transactions within the closed period?.

Answers

Based on the information given, the correct option will be C. Yes, but only if they know the password. Changes are flagged in an Exceptions to Closing Date report.

From the complete information, it was stated that the user has set a closing date with a password. It should be noted that changes can still be made by the client.

It should be noted that admins and master admins can edit the transactions even after the closure of the book.

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Which best describes the relationship between respiratory and circulatory system.

Answers

Answer:

The respiratory system transports oxygen to cells, while the circulatory system provides oxygen for cells.

What is the function of the hormone progesterone brainly.

Answers

Answer: Progesterone prepares the endometrium for the potential of pregnancy after ovulation. It triggers the lining to thicken to accept a fertilized egg. It also prohibits the muscle contractions in the uterus that would cause the body to reject an egg.

Explanation:

El lunes la clase comenzó a las 8:15.

Answers

Answer:

On Monday the class started at 8:15.

Explanation:

Please select the word from the list that best fits the definition the biological capability to bear children.

Answers

Answer:

Edge says Fecundity

Explanation:

Fecundity is the biological capacity of an organism to conceive a child - in conjunction with another organism. For this to occur it is necessary that the man and the woman be fertile, that is, they have fertility. A person's fertility is measured by the number of ovules / seeds that can be fertilized. After fertilization, the fetus grows in the gestational process and becomes a baby.

The correct word from the list that best fits the definition of the biological capability to bear children is fecundity. The correct option is E.

What is childbearing?

Women can theoretically become pregnant and give birth from puberty, when they begin having periods, to menopause, when they cease having them. The reproductive years of the average woman last from 12 to 51 years.

The biological ability of one organism to conceive a child in collaboration with another creature is known as fecundity. Both the man and the woman must be fertile, or have fertility, for this to happen.

The quantity of ovules or seeds that can be fertilized is used to determine a person's fertility. The fetus develops during the gestational period after conception to become a baby.

Therefore, the correct option is E. Fecundity.

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The question is incomplete. Your most probably complete question is given below:

population

demography

birthrate

fertility

Fecundity

mortality

A mixture of iron, salt, and sand can be separated using a magnet, water, a filter, and a hot plate. This separation _____.

Answers

Answer:

i think mixture

Explanation:

sorry if it wrong(tried my best)

Answer:

This is an example of a mixture that can be separated with simple separation techniques based on the physical properties of the mixtures. Magnetism, and filtration and evaporation

Iron is a magnetic material, but salt and sand are not, therefore, the iron can be separated from the mixture with the use of a magnet.

Salt and sand are mixable. Salt is soluble in water, but sand is not. Therefore by adding the sand and salt to water, the salt will dissolve,in the water(solvent) to form a salt solution. But the sand can be separated out of the solution by filtration with the filter paper inserted into a funnel which allows the salt solution to pass through while restricting the sand.

The sand would be removed by the filter paper, while the solution passes through.

The salt solution and some sand residues are placed in an evaporating dish and heated at low temperatures. The water from the solution evaporates, leaving the salt behind.

The fifth term of a geometric sequence is 781. 25. Each term of the sequence is of the value of the following term. Which recursive formula represents the situation?.

Answers

Answer: an = 5an-1

Explanation: Given fifth term of a geometric sequence is 781.25.

a5 = 781

Also, each previous term is 1/5 of the value of the current term.

Therefore, common ratio would be 5.

But we just need to find the recursive formula .

Recursive formula of a geometric sequence is given by

Plugging value of r in above formula, we get

Therefore, recursive formula would be   represents the situation.

The recursive formula that represents the situation is: [tex]t_n = a^{(3/4)} * 781.25^{(1/4)} * n^{(1/4)}[/tex].

What is recursive formula?

A recursive formula is one that defines any term in a sequence in terms of the term(s) before it.

Let the first term of the geometric sequence be 'a' and the common ratio be 'r'.

We are given that the fifth term is 781.25, so we can write:

a * [tex]r^4[/tex] = 781.25

We also know that each term is the value of the following term, so we can write the recursive formula:

t_n = r * t_(n-1)

Where t_n is the nth term of the sequence and t_(n-1) is the previous term.

To express the recursive formula in terms of 'a' and 'r', we can use the formula for the nth term of a geometric sequence:

[tex]t_n = a * r^{(n-1)[/tex]

Substituting the recursive formula, we get:

[tex]r * t_{(n-1)} = a * r^{(n-1)[/tex]

Dividing both sides by r^(n-1), we get:

[tex]t_{(n-1)} = a * r^{(n-2)[/tex]

So the recursive formula in terms of 'a' and 'r' is:

t_n = r * t_(n-1)

[tex]= r * (a * r^{(n-2)})\\\\= a * r^{(n-1)[/tex]

Now we can substitute the value of the fifth term (781.25) to solve for 'a' and 'r':

a * [tex]r^4[/tex] = 781.25

Dividing both sides by a, we get:

[tex]r^4[/tex]= 781.25/a

Taking the fourth root of both sides, we get:

r = [tex](781.25/a)^{(1/4)[/tex]

Substituting this value of 'r' into the recursive formula, we get:

[tex]t_n = a * ((781.25/a)^{(1/4)}){^(n-1)}\\\\= a^{(3/4)} * 781.25^{(1/4)} * n^{(1/4)}[/tex]

Therefore, the recursive formula that represents the situation is:

t_n = a^(3/4) * 781.25^(1/4) * n^(1/4)

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A __________ score allows a researcher to compare scores across different scales. A. Raw b. Distributed c. Standard d. Deviated please select the best answer from the choices provided a b c d.

Answers

Answer:

A standard score allows a researcher to compare scores across different scales.

Explanation:

[tex]~\large{\mathfrak{꧁HeavenMistress꧂}}[/tex]

Which statements are true descriptions of earth's interior layers? select the two correct answers.

Answers

Answer:

2 AND 6

Explanation:

Matthew has a jar of 368 nickels and dimes he has been collecting. The total value of the coins is $28. 40. Which system of linear equations and solution can be used to represent the number of nickels and dimes matthew has in his collection?.

Answers

Answer:200 nickels and 168 dimes

Explanation:N+d=368

Calculate the number of different words that can be obtained by rearranging the letters of the word trust.

Answers

There are 5 letters in the word trust and the number of different words that can be obtained from the word trust is; 115

Since, at least 2 letters are required to make a word from the word trust;

We can evaluate the number of different words that can be obtained by rearranging the letters of the word trust as;

5! - 5

= (5×4 × 3 × 2 × 1) - 5

= 120 - 5

= 115

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A middle school chess club has 5 members.

Answers

Answer:

For real????????????

Thats sad :C

Which of the following correctly describes the effect of sympathetic division of ans on the cardiac activity.

Answers

Answer:

The statement 'sympathetic nervous system activation constricts arteries found within the salivary glands' describes the activation of autonomic nervous system function in the circulatory system

Which premise would best fit in a work of dystopian fiction.

Answers

Answer:

The answer is most likely C, can a robot dominated government run a human society. The assumption here is that robots already have dominated human kind.

thank you

Drag and drop each mutation to the picture that correctly represents the mutation.

Answers

i think you might’ve forgotten the picture, make sure to always check before sending

Answer:   Point mutation in Meiosis, Chromosomal Rearrangement, Nondisjunction.  

Explanation:

The range of the data:25, 81, 20, 22, 16, 6, 17,15,12, 30, 32, 10, 91, 8, 11, 20 is.

Answers

Answer:

The range for the following data is 83

Explanation:

To find the range of data given, you take the largest number and subtract the smallest number from it. (Biggest # - Smallest #)

91 is the biggest number.

8 is the smallest number.

91-8 = 83

83 is the range.

A piece of equipment costs $30,000, and is expected to generate $8,500 of annual cash revenues and $1,500 of annual cash expenses. The disposal value at the end of the estimated 10-year life is $3,000. Ignoring income taxes, the payback period is:.

Answers

Answer:

C. 4.29 years

Explanation:

The computation of the payback period is shown below:

Payback period = Initial investment of the equipment ÷ Cash flows

where,

Initial investment = $30,000

And, the cash flows is

= $8,500 - $1,500

= $7,000

So the payback period is

= $30,000 ÷ $7,000

= 4.29 years

By dividing the initial investment by the cash flows we can get the payback period and the same is applied above.

please mark me brainliest!!

What is the frequency of a sound source that produces the same wavelength in 20∘c air?.

Answers

Based on the standard formula and data in the question, the frequency of a sound source that produces the same wavelength in 20∘c air is "115.87Hz."

What is the frequency of a sound source?

The frequency of a sound source is the quantity of waves that move through a point per unit of time.

Typically, a sound wave arises from a source vibrating at a frequency f, propagates at v, and has a wavelength λ.

Therefore, in this case, we have

Velocity (v) of sound in air = 343 m/s

Wavelength (λ) = 2.96 m

Frequency (f) =?

f = v ÷ λ

f = 3.43m/s ÷ 2.96m

=> 115.87Hz

Hence, in this case, it is concluded that the correct answer is 115.87Hz.

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A book is pushed with an initial horizontal velocity of 5. 0 meters per second off the top of a desk. What is the initial vertical velocity of the book?.

Answers

Aitashle ughlii 50. Duseo book velocity initial

Which one of the following descriptions most accurately describes what is occurring in the half cell containing the cu electrode and cu2+(aq) solution?.

Answers

Mark the first day I can take the time and you will be there to get the money

Bob plants some seeds in a small cup. He puts the cup in the light and waters the soil every day. After 4 days, the seedlings emerge from the soil. What can bob conclude?.

Answers

What Bob can conclude after 4 days when the seedlings emerged from the soil is that;

The seedlings exerted an upward pushing force on the soil.

Since he planted some seeds in a cup of soil and puts water and light daily into it, it means that the seedling is supposed to germinate and begin to grow.

However, we are told that after 4 days, the seedlings emerged from the soil. What this means is that the seedlings didn't germinate and as such they instead forced their way up the soil with an upward pushing force.

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