1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
mr Goodwill [35]
3 years ago
15

Write any two numbers less than 15 , which has exactly four factors​

Mathematics
1 answer:
Xelga [282]3 years ago
3 0

Answer:

4 can be divided by 1 and 2

6 can be divided by 1 and 2

12 is wrong because it can be divided by 1,2, and 4 so it has 6 factors instead of 4

Step-by-step explanation:

You might be interested in
g A sample of 3 items is chosen at random from a box containing 20 items, out of which 4 are defective. Let X be the number of d
professor190 [17]

Answer:

The variance and standard deviation of <em>X</em> are 0.48 and 0.693 respectively.

The variance and standard deviation of (20 - <em>X</em>) are 0.48 and 0.693 respectively.

Step-by-step explanation:

The variable <em>X</em> is defined as, <em>X</em> = number of defective items in the sample.

In a sample of 20 items there are 4 defective items.

The probability of selecting a defective item is:

P (X)=\frac{4}{20}=0.20

A random sample of <em>n</em> = 3 items are selected at random.

The random variable <em>X</em> follows a Binomial distribution with parameters <em>n</em> = 3 and <em>p </em>= 0.20.

The variance of a Binomial distribution is:

V(X)=np(1-p)

Compute the variance of <em>X</em> as follows:

V(X)=np(1-p)=3\times0.20\times(1-0.20)=0.48

Compute the standard deviation (σ (X)) as follows:

\sigma (X)=\sqrt{V(X)}=\sqrt{0.48}=0.693

Thus, the variance and standard deviation of <em>X</em> are 0.48 and 0.693 respectively.

Now compute the variance of (20 - X) as follows:

V(20-X)=V(20)+V(X)-2Cov(20,X)=0+0.48-0=0.48

Compute the standard deviation of (20 - X) as follows:

\sigma (20-X)=\sqrt{V(20-X)} =\sqrt{0.48}0.693

Thus, the variance and standard deviation of (20 - <em>X</em>) are 0.48 and 0.693 respectively.

3 0
3 years ago
Which geometric figures are drawn on the diagram? Check all that apply.
andrey2020 [161]

Answer:

I think it should be triangle

8 0
2 years ago
Line QR goes through points Q(0,1) and R(2,7). which equation represents line QR
vodka [1.7K]
M= (7-1)/(2-0)=3
y=3x + c
plug in Q 
1= 3 x 0 +c
=> c =-2
=> the equation represents line QR is y=3x -2
3 0
3 years ago
Read 2 more answers
4. The students in Mr. Michael’s art class are decorating a booth for Harvest Day. They have blue cloth that is 60 inches long,
MrRissso [65]

Length of blue cloth is 60 inches , length of gold cloth is 48 inches and length of white cloth is 72 inches.

<u>a.</u>  

As, the length of all pieces are equal, so for getting the greatest possible length of the pieces, we need to find <u>GCF(greatest common factor) of 60, 48 and 72. </u>

First we will factor out all three numbers completely......

60=2*2*3*5\\ \\ 48=2*2*2*2*3\\ \\ 72=2*2*2*3*3

The common factors are: 2, 2 and 3

Thus the GCF = 2*2*3=12

So, the greatest possible length of the pieces without having any cloth left over will be 12 inches.

<u>b. </u>  

For finding the number of pieces for each color cloth, we will just <u>divide the length of each cloth by 12</u>. So...

Number of pieces for blue cloth =\frac{60}{12}=5

Number of pieces for gold cloth =\frac{48}{12}=4 and

Number of pieces for white cloth =\frac{72}{12}=6

4 0
3 years ago
(HELO FAST )What is the solution to this system of equations? *
Alex787 [66]

Answer:

A

Step-by-step explanation:

i think thats the answer

8 0
3 years ago
Read 2 more answers
Other questions:
  • A ladder is leaned against a building. the bottom of the ladder is 11 feet from the building. the top of the ladder is 17 feet a
    9·1 answer
  • In a relation, the input is the number of people and the output is the number
    11·1 answer
  • Factorise 3x^2 +37x+70
    6·1 answer
  • Dorothy opens a savings account with $80 that earns 8.5% interest
    13·1 answer
  • if I buy 54 packs of cookies and 15 cookies are in each pack how many cookies do I have all together?!!?!?!
    8·2 answers
  • A falcon flying at a height of 150 yards spots a sparrow flying at a height of 50 yards. The location of the sparrow makes an an
    10·1 answer
  • Yellow line leaves station every 6 min and red line leaves every 8 min and they both leave at 4:15, when will they both leave at
    5·1 answer
  • Find the value of -8 - 12 - (-20).<br> 24<br> -40<br> 16<br> 0
    5·2 answers
  • The replacement times for DVD players are normally distributed with a mean of 7.1 years and a standard deviation of 1.5 years (d
    14·1 answer
  • The vertex of a function is (-13,9). What is the axis of symmetry?
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!