A number from 1-20 is chosen at
random. What is the probability
that it is not prime number.

Answers

Answer 1

Answer:

There are 12 composite (and 8 primes) in the first twenty whole numbers. So the probability of randomly choosing a non-prime is 12/20 or 60%.


Related Questions

HELP giving brainlest

Answers

Answer:

It should be "there ARE 254 counties in texas..."

Step-by-step explanation:

is the wrong one it should be are

Step-by-step explanation:

What is the area of this figure???

Answers

Answer:

24 mm squared

Step-by-step explanation:

3 x 4 x 1/2 = area of the triangle

4 x 3 = area of the rectangular top left

1 x 6 = area of the bottom rectangle

3 x 4 = 12 x 1/2 = 6

4 x 3 = 12

6 x 1 = 6

6 + 12 + 6 =24

The area of the figure is 24mm^2

Que volumen ocupan 0.8kg de alcohol?¿cual es el peso de este volumen? la densidad del alcohol es 790 kg/m3

Answers

Respuesta:

Volumen = 0.0010126 m³

Ancho = 7,84 N

Explicación paso a paso:

Dado que:

Masa, m de alcohol = 0,8 kg

Densidad del alcohol, d = 790 kg / m³

Recordar :

Densidad, d = masa, m / volumen, v

Volumen = masa / densidad

Volumen = 0,8 kg / 790 kg / m³

Volumen = 0.0010126 m³

Peso, W = densidad * aceleración debido a la gravedad * volumen

Ancho = 790 * 9,8 * 0,0010126

W = 7.8395

Ancho = 7,84 N

The radius is 6 and the height is 15 what is the volume in terms of pi

Answers

Answer:

Step-by-step explanation:

what is the shape ?

A Scale model of a building is 12 inches tall. The actual building is 160 feet tall. What is the scale factor of the model write your answer as a fraction and simplest form

Answers

Answer:

133/10

Step-by-step explanation:

divide 160 and 12 then simplify your answer

The scale factor of the model is 0.075.

What is the scale factor?

The ratio between comparable measurements of an item and a representation of that thing is known as a scale factor in arithmetic.

We are given that Scale model of a building is 12 inches tall. The actual building is 160 feet tall.

First, we need to multiply 160 by 12 so that we have inches and inches

160 inches

Then divide 160 by 12 and that will give, 12 which is the scale factor

The scale factor is:

12/160=3/40

=0.075

Learn more about scale factor here:

https://brainly.com/question/11178083

#SPJ6

pls help me plss im so STUCK AHhH

Answers

I because -9 is the smallest number and |6| is the biggest number.

WILL GIVE BRAINLIEST.

Given the sequence in the table below, determine the sigma notation of the sum for term 4 through term 15.

n an

1 4

2 −12

3 36


the summation of 4 times negative 3 n, from n equals 4 to 15

the summation of 4 times negative 3 n, from n equals 1 to 15

the summation of 4 times negative 3 to the n minus 1 power, from n equals 1 to 15

the summation of 4 times negative 3 to the n minus 1 power, from n equals 4 to 15

Answers

Answer:

option D

Step-by-step explanation:

Took the test

Answer: the summation of 4 times negative 3 to the n minus 1 power, from n equals 1 to 15 (option D)

Step-by-step explanation: I took the test and got it right :)

ILL MARK BRAINLIEST

What is the distance between the points (-9,4) and (3, -12)?

Answers

Answer:

-9 and 3 are x

4 and -12 are y

x are 12 points away

y is 16 points away

Is this helpful?

Answer:20

Step-by-step explanation:

EXPLAIN HOW TO FIND THE AREA OF THE
SHADED Region.

Answers

Answer:

Find the area of the circle then divide by two

Step-by-step explanation:

Help please :) will give brainlist

Answers

Answer:

34.9

Step-by-step explanation:

Because if you multiply then divide by 2 that will help you alot.

Question 10:
Find the cosine of angle J.
28
J
N

Answers

Answer:

1/14

Step-by-step explanation:

According to SOH CAH TOA;

Cos theta = adjacent/hypotenuse

Since theta = <J

Adjacent = 2

Hypotenuse = 28

Cos <J = adj/hyp

Cos<J = 2/28

Cos<J = 1/14

Hence the value of cosine J is 1/14

G. 9−7+{−2+3−[4−2+(3+2)−7]+8} h. – {- [ (14 - 7) - (32 - 41)]} i. – [(-8 + 3) + (- 21 – 12)] j. 500 – {( 6 – 18 + 4 + 3 + 16 - 10 – 2) – 5 } k. (9 + 7 – 2 + 4) – ( 9 -12 )

Answers

Answer:

g.  9−7+{−2+3−[4−2+(3+2)−7]+8} = 11

h. – {- [ (14 - 7) - (32 - 41)]} = +  16

i. – [(-8 + 3) + (- 21 – 12)] = + 38

j. 500 – {( 6 – 18 + 4 + 3 + 16 - 10 – 2) – 5 } = 506

k. (9 + 7 – 2 + 4) – ( 9 -12 ) =21

Step-by-step explanation:

These questions are solved by solving the small brackets, then square brackets and then the curly brackets.

g.  9−7+{−2+3−[4−2+(3+2)−7]+8}

=  9−7+{−2+3−[4−2+(5)−7]+8}     Solving inner  small brackets

= 9−7+{−2+3−[9−2−7]+8}            Solving outer square brackets

= 9−7+{−2+3−0 +8}                     Solving curly brackets

=9−7+{9}                        Adding like terms ( adding positive terms)

= 18-7

= 11

h. – {- [ (14 - 7) - (32 - 41)]}

= – {- [ (14 - 7) - (-9)]}                  Solving inner  small brackets

= – {- [ (7) +9]}                           Solving inner  small brackets

= – {- [ 16 ]}                              Solving outer square brackets

= – {-  16 }                                 Solving curly brackets

= +  16                                      (-*-= +)

i. – [(-8 + 3) + (- 21 – 12)]

= – [(-8 + 3) + (- 33)]            Solving inner  small brackets

= – [(-5 - 33)]                      Solving inner  small brackets

=– [( - 38 )]                              Solving outer square brackets

= + 38                                        (-*-= +)

j. 500 – {( 6 – 18 + 4 + 3 + 16 - 10 – 2) – 5 }

= 500 – {( 6 + 4 + 3 + 16  – 18 -10 – 2) – 5 }         Solving inner  small brackets

= 500 – {( 29  – 30) – 5 }                   Solving inner  small brackets

= 500 – {(  – 1) – 5 }               Solving inner  small brackets

= 500 – { – 6}                                Solving curly brackets

= 500  + 6                                        (-*-= +)

= 506

k. (9 + 7 – 2 + 4) – ( 9 -12 )

= (9 + 7 + 4– 2 ) – (  -3 )                        Solving inner  small brackets

= (20 – 2 ) – (  -3 )                                 Solving inner  small brackets

= (18 ) – (  -3 )                                           (-*-= +)

= 18   +3

=21

Write an equation equivalent to 0.127​

Answers

Answer:

127x10^-3

Step-by-step explanation:

0.127=

[tex]127 \times {10}^{ - 3} [/tex]

what is the missing angle in a triangle with angle measures of 15 degrees and 70 degrees

Answers

Answer:

95

Step-by-step explanation:

A triangle must always equal 180, so if you take the values of 15 and 70, you get 85.

Then, you take 180 and subtract 85.

This leaves you with 95

Hope this helps

Eva received a 20% discount when she bought a sweater. The original price of the sweater before the discount was $80. Which was the discount on Eva's sweater?

Answers

Answer:

8

Step-by-step explanation:

Yes

A.Adjacent
B.Vertical
C.None
D.Complementary

Answers

B cuz A is a bunch of other lines looks nothin like that D look similar to A so your answer is B the letter B is ya answer

pls help asap !!!!!!!!!!!!!!!!!!!!!

Answers

Answer:

For the 1st one: 63

For the second one: 99

Step-by-step explanation:

This is because to find the perimeter, you have to do length+length+width+width=area

So you do 77+77+x+x=280, this should get you x=63

For the second one, to find area you do length×width=area

So you do 59×x=5841 and should get 99.

What is 1/3 of 8 1/4

Answers

Answer:

2.75

Step-by-step explanation:

use a calculator

Hope this helps! :)

Am I correct on these two​

Answers

Answer:

9. Correct 12. Incorrect, it's D

Step-by-step explanation:

9. There is a 1:2 ratio of blue to red paint to create the shade of purple, so 6:12 would follow the 1:2 ratio so it's correct.

12. 6:14 can be simplified to 3:7 ratio. 8:16 doesn't follow 3:7 (it follows 1:2) so it can't be the right answer. 12:28 follows the ratio so it's right.

Identify which graph can be used to solve each equation. Enter the letter of the correct graph next to the
equation

Answers

Answer:

I think the answer is graph B

1. C = x^4 + 3 = 0

2. A = (x − 3)^4 = 0

3. B = (x^2 − 3)^2 = 0

Which linear equation represents the table shown below?

~ y=6x+2
~ y=x+4
~ y=4x+2
~y=4x-2

Answers

Y=4x-2

You figure this out by just substituting the x and y values into the equation to check if it works

Zoe supplies costumes to a number of theater companies. She
recently provided 20 different hats, including 4 fedoras.
Considering this data, how many of the next 30 hats requested
from Zoe's inventory should you expect to be fedoras?

Answers

Answer:3

Step-by-step explanation:

The 6 fedoras expect if next 30 hats requested from Zoe's inventory, and She recently provided 20 different hats, including 4 fedoras.

What is the ratio?

It is described as the comparison of two quantities to determine how many times one obtains the other. The proportion can be expressed as a fraction or as a sign: between two integers.

The ratio of hats to fedoras = 20:4

Let's suppose Zoe's inventory, should expect to x fedoras

20/4   =  30/x

x = 30/5

x = 6

Thus, the 6 fedoras expect if next 30 hats requested from Zoe's inventory, and She recently provided 20 different hats, including 4 fedoras.

Learn more about the ratio here:

brainly.com/question/13419413

#SPJ2

help me on these please asap

Answers

Answer:

1.x=45,2.x=16

Step-by-step explanation:

1.

x+90+45=180(Angles in an adjacent angle)

x=180-135

x=45

2.

7x=112(vertically opposite angle)

x=112/7

x=16

First question refers to the supplementary angle theorem.

To find x, we need to refer to the other angles around it and use it to subtract it from 180°.

90 + 45 + x = 180

135 + x = 180

x = 180 - 135

x = 45°

Second question refers to the vertical angles theorem, where it states that the angles that face in opposite directions are the same.

7x = 112

x = 112 ÷ 7

x = 16°

A spinner has 10 equal sized sections. Two of the sections are green.
A. What is the probability that the spinner will land on green?
B. Use words to describe the probability.

Answers

Answer:

Hello love the answer would be 2/10 or reduced 1/5

Answer:

A. 1/5

B. There is a 1/5 probability the spinner will land on green

Step-by-step explanation:

A. 2/10 simplified

B. I just put it into words

Cual es la diferencia común de la secuencia aritmética 5,8,11,14?

Answers

Answer:

a

Step-by-step explanation:

1.2 mi =
ft someone pls tell me I have a test tomorrow!!

Answers

Answer: 6336 ft.

Step-by-step explanation:

If you were asking what 1.2 miles equals in feet, your answer would be 6336 feet. Good luck on your test tomorrow!

Answer:

6336 feet

Step-by-step explanation:

each mile has 5280 feet. Simply multiply 1.2 by 5280 to get your answer

Claire bought 6 packs of baseball cards. Each pack had the same number of cards. If Claire bought 48 baseball cards in all, how many cards were in each pack.

Answers

Answer:

8 baseball cards were in each pack

Step-by-step explanation:

Since she has a total of 48 cards and each of the 6 packs had the same amount you would just do 48 divided by 6 which is 8. So there were 8 baseball cards in each pack

What is the length of BC in the right triangle below?

Answers

Answer:

Option A

Step-by-step explanation:

Use the Pythagoras Theorem

Hypotaneous² = base² + height²

BC² = AB² + AC²

BC = √ (AB² + AC²)

BC =  √ (12² + 16²)

BC = 20

Answer:

20

Step-by-step explanation:

Here's your solution

=> in a right angle traingle

BC^2 = AB^2 + AC^2

=> BC^2 = 16^2 + 12^2

=> BC ^2 = 256 + 144

=> BC^2 = 400

=> BC = 400

=> BC = 20

hope it helps

PLEASE HELP!!!!

The surface area of a regulation spherical soccer ball is about 484π
square centimeters. If the diameter of the regulation ball is reduced by 50%
to produce a new ball, what is the diameter of the new ball, to the nearest tenth of a centimeter?


A. 5.5 cm
B.7.8 cm
C. 11.0 cm
D.15.6 cm

Answers

Your answer would be C because dividing 484 and 50 you get 9.68, and 11.0 is the best estimate, hope I could help! Plz mark brainalist (:

The diameter of the new ball, to the nearest tenth of a centimeter, is 11.0cm

We have given that,

The surface area of a regulation spherical soccer ball is about 484π

square centimeters. If the diameter of the regulation ball is reduced by 50% to produce a new ball.

We have to determine,

The diameter of the new ball, to the nearest tenth of a centimeter.

What is the surface area of a spherical soccer ball?

The volume of a sphere = 4/3 × πr^3.

Therefore we get,

[tex]\frac{484}{50}= 11.0[/tex]

Therefore we get the diameter of the new ball, to the nearest tenth of a centimeter is 11.0cm.

To learn more about the diameter visit:

https://brainly.com/question/23220731

#SPJ2

Michael has 27 keys, which is 3 times as many as Rachel. Rachel has 8 more keys than Ann. How many keys does Ann
have?

Answers

Answer:89

Step-by-step explanation:

Multiply 27 by 3, then add 8 to your answer and you get 89

Other Questions
Last summer, a sports club had 370 members. This summer, due to some renovations, it has10% fewer members. How many members are there now?membersSubmit 15.) What happens to hormone levels if a woman becomes pregnant?16.) Why does menstruation begin? After I treated a patient, his family sent me a new flat-screen TV as a present to show their gratitude I appreciate the thought, but I feel strange about accepting such an expensive item. If all doctors took these kinds of gifts, wouldn't we have an incentive to treat rich and generous patients better than others? What is the ethical issue in this scenario? In "How Archaeologists Found the Lost City of Troy," what is the author's purpose in telling the story of Troy's defeat in the Trojan War?A: to pay tribute to Homer as an epic storytellerB: to explain the importance of the city of Troy in Greek mythologyC: to give biographical information of the real people who lived in TroyD: to entertain the reader with a tale of war, deceit, and victory The effects of being away from water on temperature and precipitation The main advantage of solar energy is:It has very little pollution.It is free.It can be used all the time.It is low in cost. The measures of the angles of a triangle are shown in the figure below. Solve for x. Which part of the plant converts energy from the sun into food?O RootsO SiemO LeavesO Flowers What is feet in spanish is los pies or los manos Dickinson, Donne, and Thomas all have unique perspectives about death in their poems. Write an academic paragraph in which you identify the perspective on death in each poem and describe how that perspective is developed. Use evidence from each text in your response HELP PLEASE JJFFNFNFNF What is the status of this account?A)CurrentB)Current, but closedC)Potentially negativeD)Potentially negative, but closed HELP ME PLS IM STRUGGLING Plz help me!!!!!!!!! Btw I am also doing it bc when u select the box you have to answer the fraction but I can do that! I need help pls help me FOR BRAINLIST!! and points 16ft by 24ft what is the are? Which best describes the differing tones of Malcolm X's and Ted Kennedy's speeches?A)Kennedy uses a didactic tone; Malcolm X uses an objective toneB)Malcolm X's speech is primarily humorous, while Kennedy's is extremelyseriousC)Malcolm X's speech is conciliatory, white Ted Kennedy's speech is bubblyand joyousKennedy's speech is somber and repentant while Malcolm X's speech isdefiant and angryD) What is the value of C in the matrix equation below simplify the expression