In a city school of 1200 students 42% of the students are on the honorable 64% have a part time job and 28% are on the honor roll and have a part-time job what is the probability that a randomly selected student is on the honor roll given that the student has a part time job

Answers

Answer 1

Answer:

[tex]P(H|P) = \frac{P(H \cap P)}{P(P)}[/tex]

And replacing we got:

[tex] P(H|P) =\frac{0.28}{0.64}= 0.4375[/tex]

And the probability required for this case is 0.4375

Step-by-step explanation:

For this case we define the following events:

H = represent that the student is honorable

P= represent that the student have a part time job

And we have the following probabilities:

[tex] P(H) = 0.42 , P(P) = 0.64, P(H \cap P) =0.28[/tex]

And we want to find this probability:

[tex] P(H|P)[/tex]

And we can use the following probability:

[tex]P(H|P) = \frac{P(H \cap P)}{P(P)}[/tex]

And replacing we got:

[tex] P(H|P) =\frac{0.28}{0.64}= 0.4375[/tex]

And the probability required for this case is 0.4375


Related Questions

How many solutions can be found for the linear equation?
(3x +12) - 1 - (4x + 16)
A)no solutions
B)one solution
C)two solutions
D)infinitely many solutions

Answers

(3x+12) / 3 - 1 = (4x+16)/2
X+4-1 = 2x +8
x+3 = 2x+8
-5 = x

Answer: One Solution

What is 922 divided by 26 with a remainder

Answers

Answer:

20.0434

Step-by-step explanation:

The answer is 35.4615385 but if you want to put it in a shorter way you can write 35.5

The function f(x)is graphed above. Which of the graphs below represents the function g(x)=(x+1)^2

Answers

Answer:

The function g(x) = (x + 1)² is represented by the graph Y

Step-by-step explanation:

The question presents the graph of the function x² above

Therefore, for a function f(x) = x² at x = 0 y = 0

For function g(x) = (x + 1)² when x = 0 g(x) = 1  Satisfied by graph W and Y

Also we have g(x) =  (x + 1)² = x² + 2·x + 1  or g(x) = f(x) + 2·x + 1

We find the minimum of the graph by differentiating and equating to zero as follows;

[tex]\frac{\mathrm{d} (x + 1)^{2}}{\mathrm{d} x} = 2x +2 = 0[/tex]

Therefor, the minimum is at x = -1 satisfied by only graph Y

Hence the graph that represents the function g(x) = (x + 1)² is the graph Y.

The dimensions of a CD case are 14.2cm by 12.5cm. Each case is approxiomately 1cm deep. What would be the volume of this stack of 17 cd cases to the nearest tenth?

Answers

Answer: 3,017.5 cubic centimeters.

Step-by-step explanation:

Hi, to answer this question we have to calculate the volume of each cd case:

Volume of a rectangular prism= length x width x height

Replacing with the values given:

V = 14.2 x 12.5 x 1 = 177.5 cubic centimeters.

Since there are 17 cases in the stack, we have to multiply the volume one case by 17.

177.5 x 17 = 3,017.5 cubic centimeters.

Francesca's window store made a mosaic for the community center. The mosaic had a 6 × 6 array of different color square tiles. If each tile is 2 1 4 ft long, what is the area of the whole mosaic?

Answers

The correct value of the length of a side = 2¼ ft

Answer:

area of the whole mosaic = 182.25 ft²

Step-by-step explanation:

We are told it has a 6 x 6 array of different colour square tiles.

Which means it has 6 x 6 = 36 square tiles.

Area of square = L²

Where L is length of side

Now, since length of one tile is 2¼ ft long.

Thus, area of one square tile = (2¼)²

= 81/16 ft²

Since there are 36 tiles,

Thus ;

Total area ; 81/16 x 36 = 182.25 ft²

Final answer:

The area of one tile in the mosaic is 5.0625 ft², and because there are 36 tiles in the mosaic, the total area is 182.25 ft². Mosaics are an ancient and durable art form requiring significant skill to create, especially when using small tesserae.

Explanation:

Francesca's window store created a mosaic for the community center that consisted of a 6 × 6 array of square tiles. To find the area of the whole mosaic, we need to calculate the area of one tile and then multiply it by the total number of tiles in the array.

Firstly, we have been given that each tile is 2 1/4 ft in length. Since the tiles are square, the area of one tile will be (2 1/4 ft) × (2 1/4 ft). In decimal form, 2 1/4 ft is equal to 2.25 ft. The area of one tile is therefore:

2.25 ft × 2.25 ft = 5.0625 ft²

Since there are 36 tiles (6 tiles in each direction), the total area of the mosaic will be:

5.0625 ft² × 36 = 182.25 ft²

Mosaics require considerable skill and time to create, especially when they employ tiny tesserae. As seen throughout history, mosaics have been used to decorate many surfaces, such as those in Francesca's example. The durability and artistic value of mosaics continue to make them a popular choice for artistic expression in structures like the community center.

URGENT
[tex]3y + 2x + 5 = 0 \\ what \: is \: th e \: gradient \: and \: y \: \\ intercept[/tex]

Answers

Answer:

Gradient is -2/3 and y-intercept is -5/3.

Step-by-step explanation:

First, you have to make y the subject by moving all the unrelated terms to the other side :

[tex]3y + 2x + 5 = 0[/tex]

[tex]3y = - 2x - 5[/tex]

[tex]y = - \frac{ 2}{3} x - \frac{5}{3} [/tex]

Next, given that the slope-form equation is, y = mx+b where m is the gradient and b is the y-intercept. (*In a slope-form equation, gradient will always stick with x)

In the equation above, m is -2/3 and b is -5/3.

Harper has two cans of paint that he would like to combine into one can. If one can contains 6 11 ounces and the other can contains 22 7 ounces, can he pour them together into one 29-ounce can?

Answers

Answer:

Yes, he can.

Step-by-step explanation:

Harper has two cans of paint that he would like to combine into one can.

One can contains 6.11 ounces and the other can contains 22.7 ounces.

The total quantity of paint he has is:

6.11 + 22.7 = 28.81 ounces

Since 28.81 ounces is lesser than 29 ounces, he can put both cans of paint into the 29 ounce can of paint.

-10+16÷(-2)+7
please help!​

Answers

Pemdas
Parentheses


Answer: -11

I need circled question I WILL MARK BRAINLIEST!!

Answers

Answer:

sqrt(292) = JK

The approximate answer is

17.08800749 = JK

Step-by-step explanation:

We can use the Pythagorean theorem

a^2 + b^2 = c^2

We know the legs JL and LK and are looking for the hypotenuse JK which is opposite and L which is the right angle

6^2 + 16^2 = JK ^2

36 +256 = JK ^2

292 = JK^2

Take the square root of each side

sqrt(292) = sqrt( JK^2)

sqrt(292) = JK

The approximate answer is

17.08800749 = JK

Answer:

2sqrt(73)

Step-by-step explanation:

Since angle L is 90, JK is the hypotenuse

JK² = 6² + 16²

JK² = 292

JK = 2sqrt(73)

Where sqrt: square root

Please help me out on this !

Answers

All to red 13:8
Green to all 5:13

6 (2+g) =24 help me please

Answers

Answer:

g=2

Step-by-step explanation:

6(2+g)=24

Expanding the parentheses:

12+6g=24

Subtracting 12 from both sides:

6g=12

Dividing both sides by 6:

g=2

Hope this helps!

Answer:

g=2

Step-by-step explanation:

1. Distribute the left-hand side:

12+6g=24

2. Subtract 12 from both sides:

    12-12+6g=24-12

= 6g=12

3. Divide both sides by 6:

g=2

Justin did pushups every weekday this week. He did 8 pushups on Monday, 14 push-ups on Tuesday, 18 push ups on Wenesday, 6 pushups on Thursday and 8 on friday. Find the median number of push-ups

Answers

Answer:

The median number of push-ups is 8.

Step-by-step explanation:

We use the median to find the "middle" value of a sample, that is, the value separating the lower half from the upper half of the sample.

If the size of the sample is even

1,2,3,4

Both the upper half and the lower half should have the same size.

In this case, it is not possible to select only one value which respects this condition. So the mean between 2 and 3 = 2.5 is calculated. This value is not part of the sample.

If the size of the sample is odd

1,2,3,4,5

For a n-sized sample, with n odd, the median is the value at the position (n+1)/2. So her, it is 3, the value at the third position. In this case, it is always going to be an element at a position in the sample, that is, an element of the sample.

In this question:

Initially, we list the number of pushups sorted in an increasing way.

6,8,8,14,18

The size of the sample is 5.

The median value is at the position (5+1)/2 = 3.

So it is 8, which is the element at the 3rd position.

Answer:

18

Step-by-step explanation:

The maximum number of push-ups that Justin did in a day this week was 18.

I also literally just did it

what is 9x10 and what is 3x10?

Answers

Answer:

90 and 30

Step-by-step explanation:

Answer:90 and 30

Step-by-step explanation:

9x10=90

3x10=30

What is the area of the irregular figure below?
22 cm-
10 cm
- 36 cm
O
290 cm?
360 cm?
3,960 cm
7,920 cm

Answers

Answer:

290 cm sq.

Step-by-step explanation:

We can approximate this irregular figure as a trapezoid.

We know the area formula for a trapezoid is A = (1/2)*(base1 + base2)*height

A = (1/2)* (22 cm + 36 cm) * (10 cm)

A = (1/2) *( 58 cm)*10 cm

A = 29 cm * 10 cm

A = 290 cm sq.

The answer should be 290 cm2, i will post a comment here later if it is wrong or not. Have a good day :)

Edit: It was correct

Write an expression in simplest form for the perimeter of a right triangle with leg lengths of 3a cubed and 4a cubed

Answers

Answer:

106.4622 [tex]a^{3}[/tex]

Step-by-step explanation:

Given the information:

A right triangleLeg lengths of [tex](3a)^{3}[/tex] and [tex](4a)^{3}[/tex]

Use the pytagon theory to find the hypotenuse of the triangle

[tex]a^{2} + b^{2} = c^{2}[/tex]

<=>[tex]((3a)^{3}) ^{2} + ((4a)^{3}) ^{2} = c^{2}[/tex]

<=>[tex](3a)^{6} + (4a)^{6} = c^{2}[/tex]  

<=> [tex]c^{2} = 4285a^{6}[/tex]

Take the square root of both sides

<=> c = 69.4622 [tex]a^{3}[/tex]

=> expression in simplest form for the perimeter of a right triangle is:

[tex](3a)^{3}[/tex] + [tex](4a)^{3}[/tex] + 69.4622 [tex]a^{3}[/tex]  

= 27[tex]a^{3}[/tex]  + 64[tex]a^{3}[/tex]  + 69.4622 [tex]a^{3}[/tex]  

= 106.4622 [tex]a^{3}[/tex]

how long did it take the airplanes to reach 12,000 ft?​

Answers

Answer:it didnt

Step-by-step explanation:

En la ferretería "Colima" por cada $ 150.00 de compra te regalan 4 boletos para participar en un sorteo navideño y en la "Jeromar" por cada $100.00 de compra te regalan 3 boletos, ¿en cuál de las dos ferreterías te regalan más boletos?

Answers

Answer:

"Jeromar" give away more tickets

Step-by-step explanation:

What we must do is calculate the amount to which a ticket is equivalent, to do this, the value of the purchase must be divided by the number of tickets they give away, as follows:

"Colima"

150/4 = 37.5

In other words, they give away 1 ticket for $ 37.50

"Jeromar"

100/3 = 33.33

In other words, they give away 1 ticket for $ 33.33

Which means that "Jeromar give away more tickets, because the cost of the ticket is lower

y=2x-3 what is the slope and what is the y-intercept

Answers

Answer: THe slope is 2 and y intercept is -3

Step-by-step explanation:

Answer:

Slope: 2

Y-intercept: -3

Step-by-step explanation:

The line is in point-slope form, or

y=mx+b

where m is the slope, and b is the y intercept

If we compare the 2 equations:

y=2x-3

y=mx+b

We can tell that the slope is 2, and the y-intercept is -3

what’s the missing angle

Answers

Answer:

99°

Step-by-step explanation:

When straight lines intersect, vertical angles appear.

Vertical angles are ALWAYS equal in measure,  whether the lines are parallel or not.

B) 99°

Step-by-step explanation:

The crossing angles have the same angle.

So, the missing angle is 99° (B)

Hope it helpful and useful :)

The proportions of multiple samples of registered voters who vote are normally distributed, with a mean proportion of 0.38 and a standard deviation of 0.0485. What is the probability that a sample chosen at random has a proportion of registered voters who vote between 0.37 and 0.39

Answers

Answer:

B. 17%

Step-by-step explanation:

The probability that a sample chosen at random has a proportion of registered voters who vote between 0.37 and 0.39 is given by the z-score and P ( 0.37 < x < 0.39 ) = 16.32 %

What is a z-score?

The relationship between a value and the mean of a set of values is expressed numerically by a Z-score. The Z-score is computed using the standard deviations from the mean. A Z-score of zero indicates that the data point's score and the mean score are identical.

The Z-score is calculated using the formula:

z = (x - μ)/σ

where z: standard score

x: observed value

μ: mean of the sample

σ: standard deviation of the sample

Given data ,

Let the probability that a sample chosen at random has a proportion of registered voters who vote between 0.37 and 0.39 be P ( A )

Now , the mean of the sample μ = 0.38

The standard deviation σ = 0.0485

And , z₁ = 0.37 and z₂ = 0.39

So , P ( A ) = P ( 0.37 < x < 0.39 )

On simplifying , we get

z = (x - μ)/σ

z₁ = ( 0.37 - 0.38 ) / 0.0485

z₁ = -0.206

z₂ = ( 0.39 - 0.38 ) / 0.0485

z₂ = 0.206

So , P ( 0.37 < x < 0.39 ) = P ( -0.206 < z < 0.206 )

On further simplification of the z-score , we get

P ( 0.37 < x < 0.39 ) = 0.5816045 - 0.4183955

P ( 0.37 < x < 0.39 ) = 0.1632

Hence , the probability is 16.32 %

To learn more about z-score click :

https://brainly.com/question/25638875

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A paint can has a radius of 4 inches and a height of 15 inches. What is the volume of the paint can? Round to the nearest
tenth. Use 3.14 for
cubic inches

Answers

Answer:

Step-by-step explanation:

Shape of the can is cylinder

r = 4 in

h = 15 in

Volume =πr²h

= 3.14* 4 * 4 * 15

=753.6 cubic inches

Find the distance between the points (5, -6) and (-1, 3).

Answers

Answer:

[tex] \sqrt{117} [/tex]

Step-by-step explanation:

Use the distance formula.

[tex] d = \sqrt{(x_2 - x_1)^2 + (y_2 - y_1)^2} [/tex]

[tex] d = \sqrt{(-1 - 5)^2 + (3 - (-6))^2} [/tex]

[tex] d = \sqrt{(-6)^2 + 9^2} [/tex]

[tex] d = \sqrt{36 + 81} [/tex]

[tex] d = \sqrt{117} [/tex]

factor 8x^2-24 by taking out the gcf

Answers

Answer:    8(x^2-3)

Since 24 = 8*3, we can factor out the GCF 8 like so

8x^2 - 24 = 8*x^2 - 8*3 = 8(x^2-3)

This is using the distributive property.

the cost of a train ticket increases by 10% to £19.25 what was the original cost

Answers

100% : 110%

x : 19.25

(cross multiply)

answer: 17.5

hope this helps

in the figure below ac and bd are diameters of circle p, what is the arc measure of bdc in degrees?

Answers

The arc measure BDC that subtend the angle at the center P of the circle is  213 degrees

How to find an angle of an arc in a circle?

The arc measure of angle BDC is as follows;

AC and BD are the diameter of the circle.

∠BPD ≅ ∠APD

Therefore,

4k + 159 = 2k + 153

4k - 2k = 153 - 159

2k = -6

k = -6 / 2

k = -3

4(-3) + 159 = 147°

∠BPD ≅ ∠APD = 147°

Hence,

∠BPA ≅ ∠CPD = 33°

arc BDC = 33 + 147 + 33 = 213 degrees

learn more on circle here: https://brainly.com/question/16617391

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Find the solution to the system of equations,x+3y and 2x+4y=8

Answers

Answer:

x = -7/3y + 8/3

y = -3/7x + 8/7

Step-by-step explanation:

First, set the equations next to each other to find x and y, I'll start with x:

x + 3y + 2x + 4y = 8

Combine like terms

3x + 7y = 8

Subtract both sides by 7y

3x + 7y - 7y = 8 - 7y

3x = 8 - 7y

I'll re-order the equation to make it easier to divide

3x = -7y + 8

Divide both sides by 3

3x / 3 = -7y + 8 /3

x = -7/3y + 8/3

If you need decimals just divide with a calculator

Now to find y:

We already combined like terms so we don't need to do that again...

3x + 7y = 8

Subtract both sides by 3x

3x - 3x + 7y = 8 - 3x

7y = 8 - 3x

I'll reorder the equation once again so the variable comes first

7y = -3x + 8

Divide both sides by 7

7y / 7 = -3x + 8 / 7

y = -3/7x + 8/7

Again, use a calculator to divide completely for decimals.

EASY QUESTION

Focus on question 9

Topic: Volume

Answers

Answer:

i) 1000 cm³

ii) 614.125 cm³

Step-by-step explanation:

Volume of cube = side³

i) 10³ = 1000 cm³

ii) 8.5³ = 614.125 cm³

Answer:

1000 = 10^3

614.125 = 8.5^3

- 7х — бу = 4
= – 3y + 8
×=
y=​

Answers

X= -4



Y= 4



Coordinates (-4,4)





Amiyah. B

Solve 6 +5(m + 1) = 26.

Answers

Answer:

m = 3

Step-by-step explanation:

First, distribute the 5 to the values inside the parentheses.

6 + 5m + 5 = 26

Combine like terms: 5m + 11 = 26

Then, you want to isolate the variable so you subtract 11 from both sides because what you do on one side must be done to the other.

5m + 11 - 11 = 5m

26 - 11 = 15

5m = 15

Then divide both sides by 5.

5m / 5 = m

15 / 5 = 3

m = 3

Answer:

m=3

Rearrange the equation by subtracting what is to the right of the equal sign from both sides of the equation

I need to find the absolute mean of this?

Answers

Give more detail please this makes zero sense
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