Mathematics High School

HELP ASAP

Find P (Junior|Boy) Hint: P(A and B)
P(B)
Classroom of Students
Boys Girls
Freshman 4 4 8
[?]
Sophomore 5 7 12
Junior 2 3 5
Senior 1
4 5
12 18

HELP ASAPFind P (Junior|Boy) Hint: P(A And B)P(B)Classroom Of StudentsBoys GirlsFreshman 4 4 8[?]Sophomore

Answers

Answer 1

Answer:

Step-by-step explanation: 1/6

Answer 2

The Probability of junior boys will be  [tex]\frac{1}{6}[/tex] .

What is Probability ?

Probability is the ratio of the number of possible outcomes to the total number of outcomes.

We have,

Total number of boys = 12

Total Junior boys = 2

So,

Probability [tex]=\frac{number\ of\ possible\ outcomes }{total\ number\ of\ outcomes}[/tex]

So,

P (Junior Boy) [tex]=\frac{number\ of\ junior\ boys}{total\ number\ of\ boys}[/tex]

So,

P (Junior Boy) [tex]=\frac{2}{12}[/tex]

i.e.

P (Junior Boy) [tex]=\frac{1}{6}[/tex]

So,

The Probability of junior boys is [tex]\frac{1}{6}[/tex] .

Hence, we can say that the Probability of junior boys will be  [tex]\frac{1}{6}[/tex] .

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Related Questions

Select all irrational numbers, o​

Answers

Answer:

A & D

Step-by-step explanation:

took

substitute 13.4 - g equals 81

Answers

Answer:

I need that one too srry

Step-by-step explanation:

Plzzz help only have 3 .mins reeeeee​

Answers

Answer:

D

Step-by-step explanation:

Answer:

D....................

A store is selling a bicycle for $245.00. The store marks bicycles up by 40%. What is the original price of the bicycle?

Answers

Answer:

147

Step-by-step explanation:

if you multiply by .40 then subtract that from 245 you get 147

Which expression has a value of 36 when x = 4 and y = 7?




A 12x − 2y
B 2xy
C 2x + 4y
D 6y − x

Answers

c 2x+4y

2(4)+4(7) = 36

2(4)=8
4(7)= 28

28+8=36


What fraction, decimal and percentage of the diagram is shaded?

Answers

Answer:

where is the diagram????

Charli usa bots ][]][[]][[][][][][[][][]][]][][][][]]][

Answers

Answer:

I’m confused

Step-by-step explanation:

but ok?

riddle: A cowboy arrived to a town on Tuesday. He spent three days there then left on Tuesday. How? Also i need help simplifying 4y(3+2) + 6x

Answers

Answer:

Hey, Gmmm!

Step-by-step explanation:

1. The horses name was Tuesday

2. 20y+6x

Hope this helps!

Have a nice day♥

Answer:

Tuesday is his horse ; ) and the answer is 6x+20y

Step-by-step explanation:

If d = the number of dogs, which variable expression represents the phrase
below?
the sum of the number of dogs and the 6 cats
O A. 046
O B. d+6
O C. d-6
O D. d.6

Answers

Option B. d+6

The number of dogs is a variable expression while the number of cats is a fixed expression

Ana's younger brother and sister went on a carnival ride that has two separate circular tracks. Ana's brother rode in a blue car that travels a total distance of 220 feet around the track. Ana’s sister rode in a green car that travels a total distance of 126 feet around the track. Ana drew a sketch of the ride.


What is the difference between the radii of the two circular tracks? Answer the questions to find out.

1. Are the distances of 220 feet and 126 feet the radii, diameters, or circumferences of the two circles? Explain.


Write your answer in the space below.




2. What is the radius of the circle made by Ana's brother in the blue car? Use 3.14 for π and round your answer to the nearest tenth. Show your work.


Write your answer in the space below.







3. What is the radius of the circle made by Ana's sister in the green car? Use 3.14 for π and round your answer to the nearest tenth. Show your work.


Write your answer in the space below.





4. What is the difference in the radii of the circles?


Write your answer in the space below.

Answers

Answer: 346

Step-by-step explanation:

Add 220 and 126

I hope this helps

Answer:

1. Are the distances of 220 feet and 126 feet the radii, diameters, or circumferences of the two circles? Explain. (2 points)

Circumference because the other two aren’t the correct answers and don’t sound like the correct answers.

2. What is the radius of the circle made by Ana's brother in the blue car? Use 3.14 for π and round your answer to the nearest tenth. Show your work. (2 points)

35 is the radius for the blue car

3. What is the radius of the circle made by Ana's sister in the green car? Use 3.14 for π and round your answer to the nearest tenth. Show your work. (3 points)

20.1 is the radius for the green car

4. What is the difference in the radii of the circles? (3 points)

The difference between both cars radii is that one has a larger radius than the other.

Step-by-step explanation:

Which of these is the algebraic expression for some number to the power of 4​

Answers

Answer:

x^4

Step-by-step explanation:

no options, but pretty ez without it

x^4 (the up arrow means the number after is a power)

Answer:

you need to give us the question. please repost this question with the options

Step-by-step explanation:

A scatter plot is shown:
what type of association does the graph show between x and y? (4 points)

Linear positive association

Nonlinear positive association

Linear negative association

Nonlinear negative association

Answers

Answer:

linear positive

Step-by-step explanation:

it's prolly too late but i need pts and someone to answer my ? so yea

Answer:

Step-by-step explanation:

Linear Postive

the value of f(4)

f(x)= (3x+2)/5

plz answer with working

ill give brainilest

Answers

Answer:

14/5

Step-by-step explanation:

Given data

We have the function

f(x)= (3x+2)/5

We want to find  f(4)

Hence, let us place x= 4 in the function

f(4)= (3(4)+2)/5

f(4)= (12+2)/5

f(4)= (14)/5

f(4)=14/5

Hence f(4)=  14/5

Helia invested 4000 AED for 3 years with a compound interest rate of 1.5%, Calculate the worth of her investment at the end of this time period. ( Show each step of your calculation)

Answers

Answer:

4180 AED

Step-by-step explanation:

Given data

Principal= 4000

Time= 3 years

Rate= 1.5%

The compound interest expression is given as

A= P(1+r)^t

substitute

A=4000(1+0.015)^3

A= 4000(1.015)^3

A= 4000*1.045

A= 4180

Hence the worth will be  4180 AED

Two observers simultaneously see an airplane overhead and between them. They measure
their angle of elevation to the airplane and obtain 48° and 73º. The airplane is 1.7 miles
directly above the point shown in the figure below. How far are the two observers from each
other? Round your answer to the nearest hundreth of a mile.

Answers

Answer:

2.05 mi

Step-by-step explanation:

I don't see a figure, so I am guessing that the plane is 1.7 miles above the ground.

Let x = distance of observer 1 from that point

     y =  distance of observer 2 from that point

Tan 48 = 1.7/x           and    tan 73 = 1.7/y

x tan 48 = 1.7                       y tan 73 = 1.7

x = 1.7/tan 48                         y = 1.7/tan 73

x + y = distance between the observers

x + y = 1.7/tan 48 + 1.7/tan 73

       = 2.05 mi

Mr. Kramer's patio is in the shape of a trapezoid. The trapezoid and its dimensions are shown below. What is the area of the patio? A 144 square feet B 360 square feet C 315 square feet D 252 square feet

Answers

Answer:

C 315

Step-by-step explanation:

(12 + 30) * 15/2 = 315

The area of the trapezoidal patio is 252 ft².

What is a trapezoid?

A trapezoid is a polygon that has only one pair of parallel sides. These parallel sides are also called parallel bases of trapezoid. The other two sides of trapezoids are non-parallel and called legs of trapezoids.

Given that, Mr. Kramer's patio is in the shape of a trapezoid, we need to find its area,

So, the area of the trapezoid is = sum of the parallel sides × height/2

= 12 + 30 × 12/2

= 42 × 6

= 252

Hence the area of the trapezoidal patio is 252 ft².

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1. If the variables x and y are proportional and y = 4 when x = 20 then which of the following equations relates all values of x and y? (1) y = x+16 (3) y = 5x (2)y=-* (4) y=x-16​

Answers

Answer:

4.) y=x-16

Step-by-step explanation:

Here,

y=4,

x=20

Now,

putting the value of x and y.

or, 4=20-16

or, 4+16=20

∴20=20

That’s easy frrrrrdddssfgfssfffder

the difference between y and 20

Answers

Answer:

y + 20

Step-by-step explanation:

The other numbers are N

N - y = 20

N = y + 20

    OR

y - N = 20

N = y - 20

Select the correct answer.
Justine enrolls in a music program. The cost of the program includes a one-time registration fee of $45 and a fee of $9 per lesson. If the average
cost per music lesson is $12 and Justine has taken x classes, which equation represents this scenario?
OA. 12=59
OB
12 = 45+
OC.
45 +
OD
12=4795
12= 45578

Answers

Answer:

12 = 45 + 9/x

Step-by-step explanation:

What are some exercises that help me reach my goal?Comment at least with 2 exercises

My goal: to run a full mile without having to stop at least 3 times.

Answers

Answer:

One thing you can do to reach this goal is to practice. If you practice every few days running so you can increase your endurance. During those you can right down how many times you have stopped as your running. This will help you get better and work up to your goal.

At the farmers market and the final buys two dozen oranges at $3.50 per dozen4 kg of apples at $3.25 per kilogram to kilograms of carrots at $1.90 per kilogram and 1 kg of potatoes for $1.20 he received a 5% discount off the total bill how much money did Nathaniel spend on fruits and vegetables at the farmers market

Answers

Here's link to the answer:

tinyurl.com/wpazsebu

can you help me with my question​

Answers

Answer:

im pretty sure its undefined

Step-by-step explanation:

I'd say this because i don't believe you can do anything with the info they give you

A 90° angle is divided into 2 angles.
Find the size of the angles.
3x + 40
4x - 6
Diagram not drawn accurately

Answers

Answer:

this angle's sum is 90°

(3x+40)°+(4x-6)=90°

7x+34=90°

7x=90-34

7x=56

x=56/7

x=8

3x+40 = 3×8+40 = 64°

4x-6 = 4×8-6 = 26°

Simplify to a single power of 3

Answers

The given expression, 3⁶ × 3, written as a single power of 3 is 3⁷

Writing an expression as a single power of a base

From the question, we are to simplify the given expression to a single power of 3

From the given information,

The given expression is

3⁶ × 3

In order to write the expression as a single power of 3, let us revise some of the laws of indices

Multiplication law: mᵃ × mᵇ = mᵃ ⁺ ᵇDivision law: mᵃ ÷ mᵇ = mᵃ ⁻ ᵇZero power law: x⁰ = 1

Now,

Applying the multiplication law of indices, the given expression

3⁶ × 3

can be written as

3⁶ ⁺ ¹

= 3⁷

Hence,

The expression written as a single power of 3 is 3⁷

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Na casa de Isabel, a leitura do hidrômetro, feita no dia 20 de março, indicava 2431 metros cúbicos. Uma nova leitura, feita um mês depois, indicou 2 590 metros cúbicos. Quantos metros cúbicos de água Isabel e seus familiares consumiram nesse período?

Answers

Answer:

159 metros cúbicos

Step-by-step explanation:

Os metros cúbicos de água que Isabel e sua família consumiram durante este período são calculados como:

Nova leitura - primeira leitura

Primeira leitura = 2.431 metros cúbicos

Nova leitura = 2590 metros cúbicos

Conseqüentemente:

2.590 metros cúbicos - 2.431 metros cúbicos

= 159 metros cúbicos

simplify -2+3(1-4)-2​

Answers

Step-by-step explanation:

-2+3-12-2

1+15=16 Answer

hope it helps

Answer:

-13

Step-by-step explanation:

-2+3(1-4)-2

-2+3(-3)-2

-2-9-2

-13

Help Fast Please!!!!!!!!! How can you tell if three positive numbers form a Pythagorean triple?

Answers

Answer/Step-by-step explanation:

Square all three numbers. If the largest number squared is equal to the sum of the squares of the other two, then the numbers form a Pythagorean triple.

or

Since a Pythagorean triple is three positive integers a, b, and c such that (a^2)+(b^2)=(c^2), first take the sum of the squares of the two legs and make an estimate. For example, 3, 4, and 5 is a Pythagorean triple since 9+16=25

either one works

Can someone make a real world problem out of this graph please?​

Answers

Answer:

John just finished eating lunch and wants something sweet, he decides to get him and his coworkers some cookies. He goes to a store where they have a sale on cookies, 3 cookies for 1$. If he want to give each coworker and himself 2 cookies how much will it cost? (he has 11 coworkers)

Step-by-step explanation:

Please help! Will mark brainliest

Answers

Answer: The answer would be 2!

Step-by-step explanation:

Hope this helps! Have a good day! :)

Answer:

10

Step-by-step explanation:

you need to group the number with letters at one side so it becomes 5x≤7+3 when 3 crosses th enequality sign it becomes positive so the answer is 5x≤10

please help fast will give brainliest

Answers

Answer:

c?

Step-by-step explanation:

lmk

Answer:

its A and D

Definition of Irrational Numbers : "An irrational number is simply the opposite of a rational number. (Recall that a rational number is one that can be represented as the ratio of two integers. See Rational number definition.) In all the above cases, the fraction will go on for ever with no discernible pattern"

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