A box contains eight cards numbered 2, 3, 4, 5, 6, 7, 8, 9. One card is selected at random and replaced. What is the probability that you can select a 2 and then a prime number?

Answers

Answer 1

Answer:

1/2

Step-by-step explanation:prime numbers ={2,3,5,7}

likelihood of prime numbers =number of prime numbers /all numbers

                                                  =4/8 , 4 divides itself once and 4 divides 8 twice.

                                                  =1/2


Related Questions

MATH PLEASE HELP ASAP

Answers

Answer:

c. 59.3 ft²

Step-by-step explanation:

½× [(3.14×5²) + (10×4)]

= ½ × (78.5+40)

= ½× 118.5

= 59.3

EASY BRAINLIEST PLEASE HELP!!
-if you answer correctly ill give you brainliest which will give you 100pts-

(if you put links or don't answer accordingly im reporting your account)

Answers

opposite pairs of triangles are congruent.

Answer:

Opposite pair of triangles are congruent

Step-by-step explanation:

Because in parallelogram

Opposite sides are congruentOpposite angles are congruent

So.opposite pair of triangles are congruent

A cyclist cycles a distance of 60 miles in a time of 4 hours.
What is her average speed?

Answers

15 mile/1 hours cause 60/4

could yall help me pls?

Answers

Answer:

240 cm^2

Step-by-step explanation:

area of each triangle

=(10 x 7)/2 cm^2

=35 cm^2

area of four triangles

=35 x 4 cm^2

=140 cm^2

area of the square

=10 x 10 cm^2

=100 cm^2

area of the polygon

=(100 + 140) cm^2

=240 cm^2

A bag contains 4 red marbles, 4 green marbles, and 4 blue marbles. If Oliver draws 3 marbles, replacing them in the back each time, what is the probability he will draw 3 blue marbles?

Answers

4/12 or 1/3 if you reduce

A 9 m ladder rests against the side of a wall. The bottom of the ladder is 1.5 m from the base of the
wall. Determine the measure of the angle between the ladder and the ground, to the nearest degree.

1 degree


80 degrees


53 degrees


10 degrees

Answers

9514 1404 393

Answer:

  (b)  80°

Step-by-step explanation:

The relevant trig relation is ...

  Cos = Adjacent/Hypotenuse

The 1.5 meter distance to the wall is the side adjacent to the angle with the ground. The 9 m length of the ladder is the hypotenuse of the triangle modeling this situation.

  cos(angle) = 1.5/9 = 1/6

  angle = arccos(1/6) ≈ 80.4°

The angle between the ladder and the ground is about 80°.

_____

Additional comment

The Ladder Association recommends an angle of 75° for safety. At 80°, the ladder may have a tendency to tip the user backward.

Pls help dudndidndiendifn

Answers

Answer:

I don't know D

Step-by-step explanation:

but why is this in the mathematics section

Which is a common characteristic of both science and pseudoscience? experimentation the collection of information beliefs data

Answers

Answer:

collection of information

Step-by-step explanation:

Science can be defined as a branch of intellectual and practical study which systematically observe a body of fact in relation to the structure and behavior of non-living and living organisms (animals, plants and humans) in the natural world through experiments.

Pseudoscience can be defined as a collection of theories, methodology, practices and beliefs about the universe that are mistakenly, purportedly or erroneously regarded as scientific but in true sense isn't backed up by evidence (facts) and fails to comply with any scientific model.

However, a common characteristic of both science and pseudoscience is that both fields deals with the collection of information.

In conclusion, pseudoscience is considered to be subjective while science is objective.

Answer:

collection of information

Step-by-step explanation:

Science can be defined as a branch of intellectual and practical study which systematically observes a body of fact in relation to the structure and behavior of non-living and living organisms (animals, plants and humans) in the natural world through experiments.

Pseudoscience can be defined as a collection of theories, methodology, practices and beliefs about the universe that are mistakenly, purportedly or erroneously regarded as scientific but in true sense isn't backed up by evidence (facts) and fails to comply with any scientific model.

However, a common characteristic of both science and pseudoscience is that both fields deals with the collection of information.

In conclusion, pseudoscience is considered to be subjective while science is objective.

helppppppp pleaseeeeee

Answers

Try width 10, length 7. If this isn’t it I’m sorry

Could someone please explain how to find the surface area of a pyramid?

You don't have to explain this specific problem, just the formula.

Answers

Answer:

The general formula for the total surface area of a regular pyramid is T. S. A. =12pl+B where p represents the perimeter of the base, l the slant height and B the area of the base.

Step-by-step explanation:

PLEASE HELP!!!! I'LL GIVE BRAINLIEST NO LINKS OR YOU'LL BE REPORTED:)))))))))) Describe the distributive property. How is it different from other properties. Can you give an example?

Answers

Answer:

when u distribute a number you are basically giving the number off and multiplying other factors by that number

Step-by-step explanation:

3(x+4) ( distribute the 3 ) so u would multiply the 3 by both factors ( the x and the 4) getting 3x+12

PLEASE HELP. i’ll give brainliest if you want!

Answers

Answer:

D is true I'm pretty sure

anyone know the answer

Answers

Step-by-step explanation:

m<N = ½×144 = 72°

m (NQ = 2×47 = 94°

I believe or hope its the second one.

5. Adana made key chains for her friends out of string. She started with 2 feet of red string, 3-teet of
yellow string, and 5-feet of green string If Adana used a total of 8 3 feet of string on the key chains,
how much string remains unused?

Answers

Answer:

2 1/4

Step-by-step explanation:

SOL Review question 4

Adana made key chains for her friends out of string.  She started with 2 1/6  feet of red string, 3 1/4 of yellow string, and 5 1/2 feet of green string. If Adana used a total of 8 2/3 feed of string on the key chains, How much string remains unused.

It would be 2 1/4 because you convert all the factions denominators to 12. 2 1/6 becomes 2 2/12, 3 1/4 becomes 3 3/12, 5 1/2 becomes 5 6/12, and 6 2/3 becomes 8 8/12. add 2 2/12, 3 3/12, and 5 6/12 and you get 10 11/12 and then you subtract 10 11/12 and 8 8/12 (10 11/12 - 8 8/12) and get 2 3/12. when you get that answer, convert it by 3 and you get 2 1/4.

I hope this was helpful.

Elisa y Romina tienen 5/8 de pizza y decidieron dividírsela en partes iguales. ¿Qué parte de la pizza completa le tocó a cada una?

Answers

Answer:

Elisa y Romina comieron 5/16 de la pizza completa cada una.

Step-by-step explanation:

Dado que Elisa y Romina tienen 5/8 de pizza y decidieron dividírsela en partes iguales, para determinar qué parte de la pizza completa le tocó a cada una se debe realizar el siguiente calculo:

(5/2) / 8 = X

2.5 / 8 = X

0.3125 = X

0.3125 = 5/16

Por lo tanto, Elisa y Romina comieron 5/16 de la pizza completa cada una.

Which table represents a linear function?

Answers

Answer: should be the top left one

Step-by-step explanation:

by plotting the points and trial and error

Please tell me the process to change a percent to a decimal

Answers

X% means X/100
To change percent to decimal divide it with 100.
Example 75% = 75/100 = 0.75

Please? I need help on this ASAP!‍♀️

Answers

Answer:

The answer is 30°

Step-by-step explanation:

The smallest angle is TECHINALLY 0° (with both hands on the same number), but I know it won't take that as an answer.

Help!!!!!!!!!!!!!!!!!!!!!!

Answers

Answer:

read the co ordinates of the curve in the graph

Solve the equation. 6n= 24 Show work.

Answers

Answer: n=4

Step-by-step explanation:

6n=24

24/6=4

n=4

Answer:

n=4

Step-by-step explanation:

see steps below:)

(1) Find the distance between the points R(-3, 4) and S(5, 4).​

Answers

Answer:

the distance between RS Is 8cm

Given that P(A and B) = 0.20 and P(A|B) = 0.40, what must the P(B) = ?
a. 0.1
b. 0.2
c. 0.4
d. 0.5

Answers

Answer:

The value of P(B) = 0.5

Step-by-step explanation:

Given:

Value of P(A and B) = 0.20

Value of P(A|B) = 0.40

Find:

The value of P(B)

Computation:

P(A and B) = P(A|B) x P(B)

By putting value of P(A and B)  and P(A|B)

⇒ 0.20 = 0.40 x P(B)

⇒ The value of P(B) = 0.20 / 0.40

⇒ The value of P(B) = 20 / 40

⇒ The value of P(B) = 1 / 2

The value of P(B) = 0.5

While flipping a weighted coin, Latrell gets 4 heads and 2 tails. Based on experimental probability, how many of the next 3 flips should Latrell expect to come up heads?

Answers

Answer:  2 heads

Step-by-step explanation:

First, write the experimental probability as a fraction in simplest form.

P(heads)

=

heads

total

=

heads

heads+tails

=

4

4+2

=

4

6

=

2

3

The experimental probability is

2

3

.

We can predict the outcome of the second set of trials by assuming that the ratio will be the same as in the first set of trials. Write a proportion by setting the two ratios equal to each other, then solve.

2

3

=

n

3

2

3

(33)

=

n

3

(33) Multiply both sides by (33)

23

= 3n Simplify

6

= 3n Simplify

2

= n Divide both sides by 3

Based on experimental probability, Latrell should expect 2 of the next 3 flips to come up heads.

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Janice rides the bus to school each day. She always arrives at her bus stop on time, but her bus is late 80% of the time. Janice runs a simulation to model this using a random number generator. She assigns these digits to the possible outcomes.

What is the estimated probability that Janice's bus will be late every day next week?

A. 6/10 = 60%
B. 0/10 = 0%
C. 3/10 = 30%
D. 5/10 = 50%​

Answers

Answer:D 50%

Step-by-step explanation:

Answer:

D. 5/10 = 50%

Step-by-step explanation:

what is 48x + 56 factored

Answers

Answer:

8(6x + 7)

Step-by-step explanation:

Find a factor for both of the numbers (8)

Place the remaining numbers in a bracket (6x +7)

Place the 8 outside the bracket

8 (6x + 7)

Have a good day :)

Answer:

All you have to do is factor like this. It is also know as common factoring.

48x+54

8(6x+7)  You chose the eight because it fits into 48 and 54. So you find the multiple of 8 to get the total of 48. And that is 6 and for 54 it would turn out to be 7. So the answer would be  8(6x+7)

Step-by-step explanation:

Hope this helps!

Ignacia is comparing prices on pineapple juice. Brand A sells 24 oz. for $2.64. Brand B sells 36 oz. for $3.60. Brand C sells 12 oz. for $1.68. Brand D sells 100 oz. for $10.50. Which brand offers the best price per oz.?

Answers

Answer:

I think A or D but i'm stuck on D

Step-by-step explanation:

Answer:

D because if you multiply all the other brands to get a 100oz they are more expensive/ high than D.

HELP ME <3
Solve. 6x = -36
a) -42
b) 6
c) -30
d) -6

Answers

Answer:

the correct answer is -6

Answer:

d)-6

Step-by-step explanation:

negative and positive is a negative in multiplication. and 6x6=36

so if you put 6(-6) you get -36

f(x) = 2x^2 - 5x - 15
g(x) = -2x - 1
find f(g(x)) ... somebody help me :(

Answers

Answer:

f(g(x)) = 8x² + 18x - 8

Step-by-step explanation:

Substitute x = g(x) into f(x) , that is

f(g(x))

= f(- 2x - 1)

= 2(- 2x - 1)² - 5(- 2x - 1) - 15

= 2(4x² + 4x + 1) + 10x + 5 - 15

= 8x² + 8x + 2 + 10x - 10

= 8x² + 18x - 8

I WILL GIVE U BRAINLIEST AND THANKS AND 5 STARS please help this is very important this is a big part of my grade

Answers

1 - 6

2 - 8/125

3 - 5

4 - 4/5

2^6 = 6(2/5)^3 = 8/1253 * 3^4 = 3^516/25 = 4/5^2

Is this table of values linear?

Answers

Answer:no they aren’t linear

Step-by-step explanation:

Linear is a equal rate everytime this seems to be adding 1 on the y value for each x value

Answer: No

Step-by-step explanation: The y values don’t go up by the same number each time

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