Which of the following numbers is prime?

12
15
7
6

Answers

Answer 1

Answer:

7

Step-by-step explanation:

A prime number is a number which has no factors other than itself and 1. In other words, this number can only be divided by itself and 1 and result in a whole number answer. All of the other choices can be divided by some other numbers and result in a whole number answer.

Factors of 12:

1, 2, 3, 4, 6, 12

Facotrs of 15:

1, 3, 5, 15

Facotrs of 7:

1, 7

Factors of 6:

1, 2, 3, 6

Answer 2

Answer:

The number (7) is a prime number.

What are prime and composite numbers?Prime numbers are such numbers that should have two factors, one and the number itself. An example of a prime number could be "2".

Factors of 2: 1 and 2 (Verifies the above definition)

Composite numbers are such numbers that have more than two factors. An example of a composite number could be 4.

Factors of 4: 1, 2 and 4 (Verifies the above definition)

Option A

Given number: 12

Let's list the factors of this number.

⇒ Factors of 12:  1, 2, 3, 4, 6, 12

The number provided is not a prime number because the number has more than two factors. Therefore, Option A is not correct.

Option B

Given number: 15

Let's list the factors of this number.

⇒ Factors of 15:  1, 3, 5, 15

The number provided is not a prime number because the number has more than two factors. Therefore, Option B is not correct.

Option C

Given number: 7

Let's list the factors of this number.

⇒ Factors of 7:  1 and 7

The number provided is a prime number because the number has exactly two factors. Therefore, Option C is correct.

Option D

Given number: 6

Let's list the factors of this number.

⇒ Factors of 6:  1, 2, 3, and 6

The number provided is not a prime number because the number has more than two factors. Therefore, Option D is not correct.

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Learn more about Prime and Composite numbers:

https://brainly.com/question/123961 https://brainly.com/question/559568

Related Questions

(PLS HELP MY TEACHER WANTS ME TO PASS THIS!!)
Which relation is NOT a function?
A. {(0, 0), (1, 1), (1, 2)}
B. {(0, 1), (2, 2), (3, 1)}
C. {(1, 0), (3, 3), (0, 1), (2, 3)}
D. {(3, 8), (6, 11), (8, 3), (11, 6)}

Answers

Answer:

A

Step-by-step explanation:

Because 1 has more than one output, first they are putting 1 and 1 together, next they are putting it with 2, 1 has more than one output.

Answer:A has 2 pairs of "1" x-coordinates so it is NOT a function.

Step-by-step explanation:

I WILL GIVE BRAINLIST FOR CORRECT ANSWERS!!!
A sphere and a cylinder have the same radius and height. The volume of the cylinder is 11ft³


Which equation gives the volume of the sphere?


A: V=4/3(11)π

B: V=2/3(11)π

C: V=4/3(11)

D: V=2/3(11)

Answers

Answer:

I think it's D

Step-by-step explanation:

hope this helps

V=2/3(11)3.14 (or whatever you use for pi)
So B, should be correct.

5/3=t/6

find the value of "t"

Answers

Answer:

[tex]t = 10[/tex]

Step-by-step explanation:

Step 1:  Cross Multiply

[tex]\frac{5}{3} = \frac{t}{6}[/tex]

[tex](5 * 6) = (3 * t)[/tex]

[tex]30 = 3t[/tex]

Step 2:  Divide both sides by 3

[tex]\frac{30}{3} = \frac{3t}{3}[/tex]

[tex]10 = t[/tex]

Answer: [tex]t = 10[/tex]

T = 10

Steps:

1st: cross multiply
2nd: multiply both sides by 3

14.4 .3 Two students are needed to work in the school store during the lunch hour every day, and four students volunteer for this work. What is the greatest number of days that can be arranged in which no pair of the four students work together more than once?

Answers

Answer:

6

Step-by-step explanation:

=4!/(4-2)!2!

=4x3x2x1/2x2

=12/2

=6

The greatest number of days that can be arranged in which no pair of the four students work together more than once is 6.

What is an expression?

Mathematical expression is defined as the collection of the numbers variables and functions by using operations like addition, subtraction, multiplication, and division.

Given that;

Two students are needed to work in the school store during the lunch hour every day, and four students volunteer for this work.

Now, By the formula of combination we get;

The greatest number of days that can be arranged in which no pair of the four students work together more than once is,

⇒ [tex]^{4} C_{2}[/tex]

⇒ 4! / (4 - 2)! 2!

⇒ 4! / 2! 2!

⇒ 4×3/2

⇒ 6

Learn more about the mathematical expression visit:

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ASAP HELP PLEASE ITS HOMEWORK

Answers

Answer:

[tex]=132[/tex]

Step-by-step explanation:

[tex]A=2AB+(a+b+c)h[/tex]

[tex]AB=\sqrt{s(s-1)(s-b)(s-c)}[/tex]

[tex]s=\frac{a+b+c}{s}[/tex]

Now we have to solve for A:

[tex]A=ah+bh+ch+\frac{1}{2}\sqrt{-a^{4}+2(ab)^2+2(ac)-B^4(bc)^2-c^4[/tex]

[tex]4*10+3*10+5*10+\frac{1}{2}*\sqrt{-4^4+2*(4*3)^2*(4*5)^2-3^4+2*(3*5)^2-5^4}[/tex][tex]=132[/tex]

Solve for x
41.68x+2000=60x

Answers

Answer:

109.17030567685

Step-by-step explanation:

41.68x+2000=60x

-41.68x -41.68x

2000=18.32x

/18.32 /18.32

109.17030567685=x

41.67x + 2000 = 60x
-41.67x -41.67x
———————————-
2000 = 18.33x
(divide both sides by 18.33)

Answer:
x = 109.110747

The square below represents one whole.
Express the shaded area as a fraction, a decimal, and a percent of the whole.

Answers

Fraction-44/100
Decimal- .44
Percentage- 44%

Answer:

Fraction: there are 100 squares and 44 of them are blue

44 / 100

Decimal: 24 / 100 = 0.44

Percent: 0.24 x 100 = 44%

Heres another brainly question giving 20pts!!

Answers

Answer:

We are given an area and three different widths and we need to determine the corresponding length and perimeter.  

The first width that is provided is 4 yards and to get an area of 100 we need to multiply it by 25 yards.  This would mean that our length is 25 yards and our perimeter would be 2(l + w) which is 2(25 + 4) = 58 yards.

The second width that is given is 5 yards and in order to get an area of 100 yards we need to multiply by 20 yards.  This would mean that our length is 20 yards and our perimeter would be 2(l + w) which is 2(20 + 5) = 50 yards.

The final width that is given is 10 yards and in order to get an area of 100 yards we need to multiply by 10.  This would mean that our length is 10 yards and our perimeter would be 2(l + w) which is 2(10 + 10) = 40 yards.

Therefore the field that would require the least amount of fencing (the smallest perimeter) is option C, field #3.

Hope this helps!

a bag contains 4 red. 4 blue, 4 green and 4 yellow marbles. a marble is randomly pulled from the bag and replaced seven times. The table shows the outcome of the experiment. Which marble colors observed frequency is closest to its expected frequency.

Answers

Answer:

No frequency

Step-by-step explanation:

since there is a equal amount of marbles you have an equal chance to get a marble

Breaking a cookie in half creates a straight side 10 cm long.

Answers

Answer:

whats the question

Step-by-step explanation:

can someone help me pls? it helps a lot with my grades. (:

Answers

Answer:

D. 8,9

Step-by-step explanation:

Square root of 74 is around 8.6 So we want to find numbers that are less than 8.6 and more than 8.6


Option D is best becasue 8 < 8.6 < 9.

Find the mean absolute deviation for the data set.

{3, 5, 6, 3, 2, 2, 1, 0, 0, 4, 7, 4, 5, 5, 6}

Answers

If the mean of the data set is 3.533. Then the mean absolute deviation for the data set will be 1.831.

How do find the mean absolute deviation of discrete data?

Suppose the data specified is of n sized as

[tex]\rm x_1, x_2, \cdots , x_n[/tex]

Let this data's mean will be μ

Then, the mean absolute deviation of this data is the mean of the absolute differences of the observations from the mean of the data they belong to.

It is calculated as:

[tex]\rm M.A.D = \dfrac{\sum_{i=1}^n|x_i - \mu|}{n}[/tex]

The data set is given below.

3, 5, 6, 3, 2, 2, 1, 0, 0, 4, 7, 4, 5, 5, 6

Then the mean of the data will be

Mean = (3 + 5 + 6 + 3 + 2  + 2 + 1 + 0 + 0 + 4 + 7 + 4 + 5 + 5 + 6)/15

Mean = 53/15

Mean = 3.533

Then the mean absolute deviation for the data set will be

[tex]\rm M.A.D = \dfrac{|3-3.533| + |5-3.533| + |6 - 3.533| + |3 - 3.533| + ...+|6-3.533|}{15}[/tex]

M.A.D. = 27.4665/15

M.A.D. = 1.831111

More about the mean absolute deviation link is given below.

https://brainly.com/question/10258446

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A health food store has launched a new pack of vitamins for children. The store records the number of packs ordered by a random sample of 100 online customers and the number of packs ordered by a random sample of 100 walk-in customers.

Which of the following inferences can be drawn about the buying pattern of the online customers versus that of the walk-in customers?

A. Online customers buy an average of four packs compared with walk-in customers, who buy an average of one pack.

B. Online customers buy an average of five packs compared with walk-in customers, who buy an average of two packs.

C. Online customers buy an average of four packs compared with walk-in customers, who buy an average of two packs.

D. Online customers buy an average of five packs compared with walk-in customers, who buy an average of one pack.

Answers

Answer:

The Answer is C. Online customers buy an average of four packs compared with walk-in customers, who buy an average of two packs.  Step-by-step explanation:

The mean for online customers is 4.3

The mean for walk in customers is 1.8

Round the 4.3 to 4 and Round the 1.8 to 2

How far off the ground is the top of the ladder? Round your answer to the nearest tenth

Answers

10.2 m - the second option

Root 11^2 - 4^2 = 10.2469...

Hope this helps!

Answer:

10.2 m - the second option

Root 11^2 - 4^2 = 10.2469...

Step-by-step explanation:

2+4+8+7+3+9-9+3+9+29+0+93+932+94930+93=?

Answers

Answer:

96113

Step-by-step explanation:

I know this is probably a random question

Answer:

96131

Step-by-step explanation:

Its just simple addition

help me pleaseeeeeeeeeeeeeeeeeeeeeeeeeeeee

Answers

Answer:

93-96          3

97-100        3

101-104       4

105-108          4

109-112        2

histogram you fill in 3 bars, 3 bars, 4 bars, 4 bars, 2 bars

Step-by-step explanation:

Sorry can’t help I just need the points
But he will help you^

Enter the missing numbers in the boxes to complete the table of equivalent ratios of lengths to widths.

Answers

Answer:

length is 6

width is 24

width is 36

Step-by-step explanation:

sorry its late

20. Suppose five cards are drawn from a deck. Find the probability of obtaining the indicated cards.
Three aces and two kings

Answers

There are 52 cards, and 5 will get selected. The probability will be 5/52 :)
It’s 52 cards and 5 selected good luck.

Jenn's carpool ride has been late 4 days out of the past 20 days. What is the estimated probability, based on relative frequency, that her ride will be late tomorrow

Answers

Answer:

20% chance

Step-by-step explanation:

Answer:

20

Step-by-step explanation:

HELP URGENT PLEASE 50 POINTS

Answers

Answer:

864 inches

1ft/12in

Step-by-step explanation:

To find out how many inches are in this 72 foot tree simply divide 72 by 12

the reason we do this is because 12 inches are in 1 foot

and this comes out to 864inches

Answer:

864 inches

Step-by-step explanation:

Ive done this before

The bar graph shows the results of spinning a spinner 100 times. Use the bar graph to find the experimental probability of not spinning a 5.
PLEASE QUICK

Answers

Answer:

81%

Step-by-step explanation:

1.

We know that the probability of spinning a five is 19% since:

19/100 = 0.19 = 19%

However, we are looking for the probability of NOT spinning a five.  So, we will have to find the probability sum of the remaining numbers (1, 2, 3 and 4).

2.

- The probability of spinning a one is 20% since:

20/100 = 0.2 = 20%

- The probability of spinning a two is 18% since:

18/100 = 0.18 = 18%

- The probability of spinning a three is 22% since:

22/100 = 0.22 = 22%

- The probability of spinning a four is 21% since:

21/100 = 0.21 = 21%

3.

Now we will add all of these probabilities together to find the total probability of NOT spinning a five!

20% + 18% + 22% + 21% = 81%

Therefore, the probability of not spinning a five is 81%.

(While writing all of this down, I realized it was completely unnecessary)

Basically, the total probability of all of these numbers is equal to 100%.  The probability of spinning a five is 19% as we inquired above.  Therefore, all we need to do is subtract 19% from 100%!

100% - 19% = 81%

According to the graph, there is a 81% chance of not rolling the 5. If it is 19% 5’s then 100 - 19 = 81.

HELP! BEST ANSWER GETS BRAINLIEST

Answers

I believe it would be 1/3! :)

Answer:

3

Step-by-step explanation:

Slope= [tex]\frac{y2-y1}{x2-x1}[/tex]

Slope= [tex]\frac{6-3}{2-1}[/tex] = [tex]\frac{3}{1}[/tex] = 3

Every 1 unit in [tex]x[/tex], [tex]y[/tex] ascends 3 units.

Hope it helped u <3

Patricia paid $285 for 3 nights at a hotel. What was the nightly rate for her room?

Answers

Answer:

 Praticia paid $95 nightly.

If 3 night = $285
Then 1 night = $285/3*1

Nightly rate= $95

14.36: Tyler has entered a buffet line in which he chooses one kind of meat, two different vegetables, and one dessert from the selections below. If the order of food items is not important, how many different meals might he choose? Meat beef, chicken, pork
Vegetables: baked beans, corn, potatoes, tomatoes
Dessert:brownies, chocolate cake, chocolate pudding, ice cream

Answers

Answer:

72 different meal options

Step-by-step explanation:

We have a choice of

1. Meat - 1 of 3 options2. Vegetables - 2 of 4 options3. Dessert - 1 of 4 options

Total number of meal combinations is

Meat*Vegetables*Dessert = 3C1*4C2*4C1 = 3*6*4 = 72

Will give brainiest!!! Rose has no more than $65 to spend on girl scout cookies. She has already spent $38.50 on samoas; if thin mints cost $4 each, how many boxes of thin mints can Rose afford? 65.00 Is the answer 6 cuz that's what I got?​

Answers

Answer:

6

Step-by-step explanation:

so if she has $65 and she spent 38.50 you find the difference which is   $26.50 then you divide it by 4 which is 6.62 so yes your right its 6 if you round it

Answer:

6 boxes.

Step-by-step explanation:

65 ≥ 38.50 + 4x    where x is the number of boxes of mints.

65 - 38.50  ≥ 4x

(65-38.40/ 4 ≥ x

x  ≤ 6.625

so the answer is 6 boxes.

10 points and brainly
Lara reads 10 chapters in 4 hours.



At this pace, how long will it take her to read 25 chapters?



Enter your answer in the box.

_____h

Answers

It’s 10 hours, she read 5 chapter in 2 hours and 25/5 is 5, 5x2 is 10
4hours = 10 chapters
8hours = 20 chapters
2hours= 5 chapters
8+2= 10
20+5=25
Answer: 10 hours

The price of jeans was reduced $5 per week for 4 weeks. By how much did the price of the jeans change over the 4 weeks?
$30
-$20
$9
-$25

Answers

Answer:

B. -$20 b

Step-by-step explanation:

4 times five is 20 and it is reduced

Answer the question about "Paper Clips Used
there are 4 questions
please help me!!!!

Answers

Answer:

19. Other

20. 80

21. 125

22. per minor grid line it goes up by 10

Step-by-step explanation:

19 other
20 80
21 130
22 10

The following figure shows a right triangular prism. Which expression represents the surface area of the prism?

Answers

6 + 6 + 30 + 40 + 50

In one to two sentences, analyze how Jim Crow laws led to social divisions in the South.

Answers

Answer:

Because of the Jim Crow laws in the South, there was a large social divide between races. For example, an African American man would not be allowed to have better wealth or status than a Caucasian man or else he could face harsh punishment that could go as far as death.

Step-by-step explanation:

Hope this helps! Sorry if this is poorly worded haha

I'd recommend word-smithing it a bit to fit your rubric in your class more

Ummm lil nas x is gay!!
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