Mathematics College

What is the probability of drawing 2 aces (at once) from a standard deck of cards? Leave your answer as a simplified fraction​

Answers

Answer 1

Anwner : 4/52

Explanation : The chance of drawing one of the four aces from a standard deck of 52 cards is 4/52; but the chance of drawing a second ace is only 3/51, because after we drew the first ace, there were only three aces among the remaining 51 cards. Thus, the chance of drawing an ace on each of two draws is 4/52 × 3/51, or 1/221.

Related Questions

What is the scale factor of this dilation?

Answers

9514 1404 393

Answer:

  3/5

Step-by-step explanation:

The scale factor is the ratio ...

  (image measure)/(original measure)

The diagram shows that the original measure of 5 becomes a measure of 3 on the image. The scale factor is 3/5.

There are 3 red, 5 green, 7 blue, 1 black and 4 yellow marbles in a bag. Once a marble is selected, it is not replaced. Find the probability of selecting a green marble, then a red marble.

Answers

Answer:

Step-by-step explanation:

Initial condition:

3 red

2 blue

5 green

2/10 times 5/9=2/9 times 5/10 or 1/2 = 2/9 times 1/2=1/9

hope this helps have a good day too.

find the equation of the straight line passing through the point (3, 3) which is perpendicular to the line y=-1/2x-4

Answers

Answer:

y = 2x - 3

Step-by-step explanation:

The negative recipricol is -1/(-1/2) = 2

Use point-slope equation:

y-y1 = m(x-x1)

x1 = 3, y1=3

y-3 = 2(x-3)

y-3 = 2x-6

y = 2x-3


What is the quotient if
1/3 of 10 is divided by 1/7 of 8/12? Reduce if possible.

Answers

Answer:

2.75

Step-by-step explanation:

What is the graph of the solution for y+10>12?

Answers

Answer:

Your answer is B.

Step-by-step explanation:

A llne passes through the two glven points. Is it vertical, horizontal, or neither?
(1, 0), (0, 0)
O Vertical
Horizontal
Neither

Answers

Answer:

Horizontal: if y is equal to 0, then there is no vertical movement

Anthony surveys a group of students at his school about whether they play a
sport. This table shows the results broken down by gender.
Play a sport
Total
Do not play a
sport
105
70
175
Boys
Girls
75
50
125
Total
180
120
300
Are being a girl and playing a sport Independent events? Why or why not?
O A. Yes, they are independent, because P(girl) = 0.58 and Pgirl plays
a sport) = 0.6.
O B. Yes, they are independent, because (girl) = 0.42 and girl plays
a sport) - 0.42
O c. No, they are not independent, because P(girl) = 0.42 and
P(girl plays a sport) = 0.42.
D. Yes, they are independent, because (girl) = 0.58 and P(girl plays
a sport) = 0.58

Answers

Answer:

A is the answer it sounds more likely

For given data, being a girl and playing a sport are independent events as P(girl) = P(girl plays a sport) = 0.4.

What are independent events?"These are the events whose occurrence is not dependent on any other event.""When the probability of occurrence of an event A is not affected by the occurrence of another event B, then event A and event B are independent events."Formula for probability of independent events:

"If A and B are independent events then, P(A∩B) = P(A).P(B)"

What is probability?

"It is a branch of mathematics which deals with finding out the likelihood of the occurrence of an event."

Formula of the probability of an event A is:

P(A) = n(A)/n(S)

where,  n(A) is the number of favorable outcomes, n(S) is the total number of events in the sample space.

For given question,

We have been given a table that shows the results broken down by gender.

             Play sports         Do not play sports       Total

Boy            105                            75                        180

Girl             70                             50                        120

Total          175                            125                       300

Using the definition of probability:

⇒ P(girl)  = Number of girls/ Number of students

⇒ P(girl) = 120/300

⇒ P(girl) = 0.4                     ....................(1)

Now we find the probability of girls that play a sport.

Using the definition of probability:

P(girl plays a sport)

= Number of girls who plays a sport/ number of students who plays a sport

= 70/ 175

= 0.4                                    ......................(2)

From (1) and (2),

P(girl) = P(girl plays a sport)

Thus, being a girl and playing a sport are Independent events.

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simplify x2 + 12x + 35/3x + 15

Answers


x+7
——— is the simplified version
3

How many times can you fill a 250ml cup from a 4 litre jar?​

Answers

sorry i’m unsure, maybe try a different solution

How many 1/3s are in 1 2/3?

Answers

Answer:

12

Step-by-step explanation:

Answer:

5

Step-by-step explanation:

3/3+2/3 = 5/3

Answer is 5

Plzzzz Find the value of x

Answers

Answer:

the answer is 55

Step-by-step explanation:

x + x + 90 = 180

2x + 90 = 180

2x = 180- 90 = 110

x = 110 ÷ 2 = 55

which area 100 km or 60km

Answers

Answer:

100km

Step-by-step explanation:

Answer:

100

Step-by-step explanation:

Suppose a city with population 340,000 has been growing at a rate of 4% per year. If this rate continues, find the population of this city in 20 years.

Answers

Answer:

Total population = 340000

Growing rate = 4%

Growing population = 340000×4/100

= 13600 per year

Now population increased in 20 years = 13600 × 20 = 272000 population.

Now ,

The population after 20 years = 340000+272000

=612000

So the population after 20 years = 612000

The probability that no one is waiting in a given hour

Answers

Answer:

two people in an hour

Step-by-step explanation:

thats why I think that why no one is waiting

Answer:

Step-by-step explanation:

which set of side lengths can form a triangle?
А: 2 cm, 2cm. 6 cm
B:3 cm 6 cm, 9 cm
C:4 cm, 8 cm, 5 cm
D:8 cm, 3 cm, 4 cm

Answers

Answer:

C:4 cm, 8 cm, 5 cm

Step-by-step explanation:

sum of length of any two sides of a triangle will be larger than the third side.

Help! CAN anyone help? I’ll give Brainly!! It’s not 5.75% x 60,000... thank you

Answers

The answer is 3400 or 3684

What is the value of y?
please hellpp!!!

Answers

Answer:

C=54°

Step-by-step explanation:

If u add each angle of a triangle should ways add up to 180°

the diameter of a sphere is 42 centimeters. find the surface area to the nearest tenth

Answers

A ~ 5541.77cm squared

Please Round 1.54 thank you

Answers

Answer:

okay so it would be 2 or 1.5 i dont know if you want it whole number but i will explain

if the number is 5 or more like 5.1 or even 5 you round up

if the number is under 5 like 4,3,2,1 your round down

Step-by-step explanation:

Answer:

To The Nearest Tenth : 1.5

To The Nearest Whole Number : 2

Tip:

If the number is 4 or below like 1.42 it would be rounded to 1.4

If the number if 5 or above like 2.58 it would be rounded to 2.6 or 3

I didnt know which one you wanted so I put both

h(-3), h(5), h(2), h(0)

h(x) = {x+1, x<2
{2x-1, x>2

Solve these:

h(-3) =
h(5) =
h(2) =
h(0) =

Answers

Answer:

h(-3) = -3h

h(5) = 5h

h(2) = 2h

h(0) = 0

Which expression represent the total cost for Ari to rent a bike for b hours and Meg to rent a scooter for s hours?

A,B,C,D

Answers

The expression the represent the total cost for Ari to rent a bike for b hours and Meg to rent a scooter for s hours is total cost = 9b + 10s

How to find the expression for total cost?

The cost of rent for bike and scooters are different.

cost for bike = $9 per hour

cost for scooter = $10 per hour

Therefore, he expression the represent the total cost for Ari to rent a bike for b hours and Meg to rent a scooter for s hours is as follows:

total cost = 9b + 10s

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Answer: 9b + 10s

Step-by-step explanation:

I - Ready Sucks :)

what is 30x + 40 factored

Answers

Answer:

1 0 ( 3 + 4 )

Step-by-step explanation:

Mario made this model to find the 3 digit number and a 1 digit number what multiplication sentence represents marios model

Answers

Answer:

Step-by-step explanation:

Ewww

Rosa had 592 stickers. She gave 212 stickers to Meg.

Which is the best estimate for the number of stickers Rosa has left?

A 200

B. 300

C. 400

D.700

E. 800​

Answers

Answer: I need help with this as fast as someone can. PLS let me know who to do it

Step-by-step explanation:

Find the area of the parallaogram to the nearest tenth

Answers

Answer:

sorry I think yr question is incomplete.

u forget to add picture.

stay safe healthy and happy.

Help! PLEASEEE! THANK YOU FOR HELPING BTW!

Answers

Answer:

Use the slope formula and slope-intercept form  y = mx + b to find the equation you get:

y = 8x

If thats not what your looking for then for every 1 (x) you get 8 (y)

Step-by-step explanation:

Ronnie's Rentals
charges $25 plus $15 per hour to rent a
chain saw. David rented a chain saw for
5 hours. Write an expression to show how
you could calculate the total amount
David paid.
191

Answers

Answer:

P = 25 + (15)n

Total amount paid by David = $100

Step-by-step explanation:

Given:

Fixed cost of renting chain saw =  $25

Variable cost of renting chain saw =  $15 per hour

Time taken = 5 hour

Find;

Total amount paid by David

Computation:

Assume;

Total amount paid by David = P

Time taken = n

So,

P = 25 + (15)n

P = 25 + (15)(5)

P = 25 + 75

P = 100

Total amount paid by David = $100

It was estimated that 650 people would attend bowling night, but 676 people actually attended.
What is the percent error, to the nearest percent of the estimate? Enter the answer in the box.

Answers

Simply divide 650/676=.9615 or 96.15%. So there was 3.85% error

The estimate's percent error is 4%, to the closest percentage.

What is percentage?

A value or ratio that may be stated as a fraction of 100 is referred to as a percentage in mathematics. If we need to compute a percentage of a number, we should divide it by its whole and then multiply it by 100. The proportion, therefore, refers to a component per hundred. Per 100 is what the term percent signifies. The letter "%" stands for it.

Find the difference between the estimate and the actual value:

Actual value - Estimated value = 676 - 650 = 26

The absolute value of the difference is 26, indicating that the actual value exceeded the estimated value.

Next, we need to find the relative error, which is the difference divided by the estimated value:

Relative error = Difference / Estimated value = 26 / 650

Finally, we can convert the relative error to a percentage by multiplying it by 100:

Percent error = Relative error x 100 = 26 / 650 x 100 ≈ 4

Therefore, the percent error, to the nearest percent, of the estimate is 4%.

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The speed you are going determines the distance you travel before coming to a complete stop after pressing the brake.

Use the computer outputs, scatterplots, and residual plots to determine which statements are true. Check all that apply.

The linear model is most appropriate.
The power model is most appropriate.
Models are always improved by transformations.
The r2 on the linear model is stronger.
The residual plot is more patterned on the linear model.

Answers

Answer:

the linear model is most appropriate, the r2 on the linear model is stronger

Step-by-step explanation:

did it on edge

Answer:

The linear model is most appropriate; The r^2 on the linear model is stronger.

Step-by-step explanation:

When compared side bu side you can see the differences.

Please help me this is for 40 points !!!!

Answers

Help you with what? There is no context. Send the text
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