A sorority has 33 members, 23 of whom are full members and 10 are pledges. Two persons are selected at random from the membership list of the sorority. Find the requested probabilities. (Enter the probabilities as fractions.) (a) The first person selected is a pledge. (b) The first person selected is not a pledge. (c) The second person selected is a pledge if the first person selected was also a pledge. (d) The second person selected was a full member if the first person selected was a pledge. (e) The second person selected is a pledge if the first person selected was a full member. (f) The second person selected is a full member if the first person selected was also a full member. (g) The second person selected was a pledge.

Answers

Answer 1
Final answer:

The probabilities for various selections of pledges and full members from a sorority are calculated based on the composition of the group and the number of members remaining after each selection.

Explanation:

When selecting two persons at random from a sorority with 33 members consisting of 23 full members and 10 pledges, the probabilities requested can be calculated as follows:

(a) The probability that the first person selected is a pledge is 10/33.(b) The probability that the first person selected is not a pledge is 23/33.(c) The probability that the second person selected is a pledge given that the first selected was also a pledge is 9/32 (since one pledge is already selected).(d) The probability that the second person selected is a full member given that the first person selected was a pledge is 23/32.(e) The probability that the second person selected is a pledge given that the first person selected was a full member is 10/32 or 5/16.(f) The probability that the second person selected is a full member given that the first person selected was also a full member is 22/32 or 11/16.(g) The probability that the second person selected is a pledge without any condition on the first selection needs additional information for a precise calculation.

Related Questions

The ratio of the lengths of the radii of two spheres is 5 : 8. What is the ratio of the surface area of the smaller sphere to the surface area of the larger sphere?


1

5

8

25

40

64

125

512

Answers

The ratio of the surface area of the smaller sphere to the surface area of the larger sphere is,

⇒ 25 : 64

What is mean by Ratio?

A ratio indicates how many times one number contain in another number. The ratio of two number is written as x : y, which is equivalent to x/y.

Where, x and y are individual amount of two quantities.

And, Total quantity gives after combine as x + y.

Given that;

The ratio of the lengths of the radii of two spheres is 5 : 8.

Now, We get;

The ratio of the surface area of the smaller sphere to the surface area of the larger sphere is,

⇒ 5² : 8²

⇒ 5² / 8²

⇒ 25 / 64

⇒ 25 : 64

Thus, The ratio of the surface area of the smaller sphere to the surface area of the larger sphere is,

⇒ 25 : 64

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what is the area of this parallelogram h=2 in. b = 10 in .

Answers

Answer:

20 in^2

Step-by-step explanation:

smh

base * height = area

Answer:

20

Step-by-step explanation:

B X H

Which property is BEST to use when simplifying 5/18 + 2/9 + 13/18?
A) Identity property of addition
B) Commutative property of addition
C) Distributive property
D) Additive inverse property

Answers

i think the answer is A

Answer:

the answer is b

Step-by-step explanation:

What is the area of figure ABCD?

104 square inches
120 square inches
136 square inches
168 square inches

Answers

The answer to that question might seem difficult but the answer is actually 120 square inches

Answer:

The answer is option 2.

Step-by-step explanation:

You have to use the formula of area of trapezium :

[tex]area = \frac{1}{2} \times (ab + cd) \times bc[/tex]

Let AB be 13 inches,

Let CD be 17 inches,

Let BC be 8 inches,

[tex]A = \frac{1}{2} \times (13 + 17) \times 8[/tex]

[tex] = \frac{1}{2} \times30 \times 8[/tex]

[tex] = \frac{1}{2} \times 240[/tex]

[tex] = 120 \: {inches}^{2} [/tex]

In order to set a staff schedule, a fast-food restaurant manager looks at the average rate of customers served per minute during a lunch service. The manager notices that the time period starts with a sharp but steady increase, is followed by a period during which the restaurant is constantly serving the maximum number of customers per minute, and then has a slow but steady decline.

Which graph models the trend the manager notices?


ANSWER: A

Answers

The graph (A) models the trend the manager notices.

What is graph?

"It is the set of points which satisfy given function or equation or model."

What is average rate?

"It describes how much one variable, on average, changes when compared to another variable."

For given question,

The manager notices that the time period starts with a sharp but steady increase, is followed by a period during which the restaurant is constantly serving the maximum number of customers per minute, and then has a slow but steady decline.

The x-axis represents the the average rate of customers served and Y-axis represents the time.

Consider graph (A)

The graph starts with a sharp but steady increase, is followed by a constant line with maximum value (the maximum number of customers per minute), and then there is a slow but steady decline.

Consider graph (B)

The graph starts with a slow but steady increase, is followed by a constant line with maximum value (the maximum number of customers per minute), and then there is a sharp but steady decline.

Consider graph (C)

The graph starts with a sharp but steady decrease, is followed by a constant line with minimum value (the minimum number of customers per minute), and then there is a slow but steady increment.

Consider graph (D)

The graph starts with a slow but steady decrease, is followed by a constant line with minimum value (the minimum number of customers per minute), and then there is a sharp but steady increment.

Therefore, the graph (A) models the trend the manager notices.

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What’s the answer to the picture shown

Answers

The answer would be a.

i need helpppp fast will give you the brainliest will give you the brainliest will give you the brainliest will give you the brainliest will give you the brainliest

Answers

Answer:

V = 3239

Step-by-step explanation:

The volume formula for a regular hexagonal prism is 3√3/2a^2h when you input the values you get 3238.74, rounded to the nearest whole number you get 3239, the student most likely used the radius of the hexagon in the equation instead of the height.

Please mark as brainliest :)

Answer:

volume is 3,439 cm

Step-by-step explanation:

The volume formula for a regular hexagonal prism is 3√3/2a^2h when you input the values you get 3238.74, rounded to the nearest whole number you get 3239, the student most likely used the radius of the hexagon in the equation instead of the height.

I hope this helps

4x​^4 -2x^3​ -6x+3

How do I factor this four term polynomial?

Answers

2x^3(2x-1) - 3(2x-1)
= (2x^3-3)(2x-1)

What is 6.8784 rounded to the nearest thousandth?

Answers

Answer:

6.878

Step-by-step explanation:

I took the quiz

The nearest thousandth of the number will be 6.878.

What is a scientific expression?

Scientific notation is the technic to express the larger or smaller numbers in the calculations to make calculations easy to solve and understand.

Given number 6.8784 can be rounded to the nearest thousandth by ignoring the three numbers after the decimal.

Therefore the nearest thousandth of the number will be 6.878.

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ANSWER QUICKLY PLZ :)​

Answers

The answer is (-1,1)
The solution is the point where the two lines cross each other
Hope this helps

Segments AB, EF, and CD intersect at point C, and angle ACD is a right angle. Find the value of g. Please help me

Answers

Answer:

37 degree

Step-by-step explanation:

AB = 180 it is a straight line

ACD = 90 degree

DE+ DCB are complimentary angles they add up to 90 they dont need to be next to each other.

DE = 53 deg

DCB = 90-53= 37 degree

g = 37 and F is its vertical angle as they share the same corner point and lay opposite each other and each have same angle 37 degree.

Final answer:

Without additional information, such as a diagram or specific measurements, we can't solve the presented problem. The problem seems to involve Properties of Intersection and possibly Trigonometry. Further details or a specific diagram are needed for an accurate solution.

Explanation:

I'm sorry, but without additional information, such as a diagram, specific measurements, or the relationship involving variable 'g', we cannot solve the problem you've presented. Segments AB, EF, and CD intersecting at point C and angle ACD being a right angle, doesn't indicate how or where 'g' is related to these elements within your problem.

The principle that you seem to be dealing with is the Properties of Intersection and possibly the concepts of Trigonometry.

Should 'g' be an angle, trigonometry might be used to find its value. If 'g' is a segment, then concepts of intersection, parallel lines, or angle properties might solve it. Nevertheless, please provide further details or a precise diagram for an accurate solution.

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Probabilities of compound

events

If you roll two fair six-sided dice, what is the

probability that both dice show an odd number?

Stuck? Watch a video or use a hint.

Answers

Rolling two dice is an example of independent events. It means that knowing the result of one die does not influence what you expect from the other.

When this is the case, the probability of the compound event is the product of the two probabilities.

Each die shows an odd number with probability 3/6=1/2, because there are three odd numbers (1, 3 and 5) out of the six possible numbers the die will show (1, 2, 3, 4, 5, 6).

So, if you multiply the probabilities of each die showing an odd number, you'll get the probability of the compound event.

Dove lotion is $26.50 for a 24 oz bottle and $25 for a 22 oz bottle which is the better buy by how many ounces

Answers

$26.50 for a 24 oz by 0.03

Which of the following represents 12 = 3 * 4?
A. 4 is 3 times as many as 12
B. 12 is 6 times as many as 2
C. 3 is 4 times as many as 12
D. 12 is 4 times as many as 3​

Answers

Answer: The answer is D.

Answer:

D

Step-by-step explanation:

That’s kinda it

2 Points
To convert 13 feet to yards, you would use the ratio yan
3 feet
O A. True
O B. False

Answers

Answer:

True

Step-by-step explanation: 1 yard = 3 feet

Answer to your question is a.) true because of the simple fact that to convert 13 feet to yards you would need to use the ratio tab

how do you expand (x-10)(x-10)​

Answers

1 Answer
1.multiply the First terms. x⋅x=x2.
2.multiply the Outside terms. x⋅10=10x.
3.multiply the Inside terms. −10⋅x=−10x.
4.multiply the Last terms. −10⋅10=−100.
5.add all of the answers together. x2+10x−10x−100.
6.combine like terms. x2+10x−10x−100. =x2−100.

The circumference of a circular garden is 94.2 feet. What is the radius of the garden? Use 3.14 for it and do not round your answer.

please help !!!!!

Answers

Answer:

Use 3.14 for p and do not round your answer. The circumference of a circular garden is 128.74 feet. What is the diameter of the garden? Use 3.14

Radius (r) = 15 feet

What is circumference of circle?

Circumference of the circle or perimeter of the circle is the measurement of the boundary of the circle. If we open a circle and make a straight line out of it, then its length is the circumference. It is usually measured in units, such as cm or unit m.

When we use the formula to calculate the circumference of the circle, then the radius of the circle is taken into account. Hence, we need to know the value of the radius or the diameter to evaluate the perimeter of the circle.

Circumference of a Circle Formula:

The Circumference (or) perimeter of circle = 2πr

where,

r is the radius of the circle

π is the mathematical constant with an approximate (up to two decimal points) value of 3.14.

Given,

Circumference of the circular garden:

C = 94.2 feet

Radius (r) =?

Circumference (C) = 2πr

94.2 = 2×3.14 × r

r = 94.2/6.28

r = 15 feet

Hence the radius of the park is 15 feet.

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I’m not good in algebra so help me out please ☹️

Answers

Answer:

I believe it's B.

Which solids can have vertical cross sections that are circles? Check all that apply.
cones
o prisms
cylinders
pyramids
spheres

Answers

I think it’s pyramid.

Akeen makes two regular shoe boxes, box 1 and shoe box 2 1s side length are 5 centimeters and 7 centimeters shoe box 2s side length were twice those of shoebox 1s: 10 centimeter, 12 centimeters, and 14 centimeters. Akin says the surface area of shoebox 2 is twice the surface area of shoe box 1. Is he correct? If he is not, how many times as great as shoebox s surface area is shoe box 2s surface area?

Answers

Akeen makes two regular shoe boxes, box 1 and shoe box 2 1s side length are 5 centimeters and 7 centimeters shoe box 2s side length were twice those of shoebox 1s: 10 centimeter, 12 centimeters, and 14 centimeters. Akin says the surface area of shoebox 2 is twice the surface area of shoe box 1. Is he correct? If he is not, how many times as great as shoebox s surface area is shoe box 2s surface area?

IS THIS MATH? I don’t understand

plz do this, its really important for my grade.

Answers

Answer:

B, A, C

Step-by-step explanation:

Answer:

Step-by-step explanation:

On each of those equations, combine like terms.

[tex](3x^{2}-7x +14) + (5x^{2} +4x-6)\\ 3x^{2} +5x^{2} = 8x^{2} \\-7x+4x=-3x\\14-6=8\\Your expression would be: 8x^{2} -3x+8[/tex]

This expression would be equivalent to B

[tex]( 2x^{2} -5x-3)+(-10x^{2} +2x+7)\\2x^{2} -10x^{2} =-8x^{2} \\-5x+2x=-3x\\-3+7=4\\[/tex]

Your expression would be: [tex]-8x^{2} -3x+4[/tex]

This expression would be equivalent to A

[tex]( 12x^{2} -2x-13) + (-4x^{2} +5x+9)\\12x^{2} -4x^{2} =8x^{2} \\-2x+5x=3x\\-13+9=-4[/tex]

Your expression would be: [tex]8x^{2} +3x-4[/tex]

This expression would be equivalent to C

Which graph is given by the radical equation?

Answers

d

Step-by-step explanation:


Simplify |-10| + |5|

Answers

Answer:

Answer: 15

Step-by-step explanation:

Answer: 15

Step-by-step explanation:

Simplify  |-10|  to 10.

10+∣5∣

Simplify.

15

If the diameter of the smaller circle is 7 km and the width of the circular path is 0.5 km, find the area of the path. (Assume π=3.14)

Answers

Answer:

12.1

Step-by-step explanation:

Answer: 12.1

Because you have to plug in your numbers in the expression d = 7km

Solving systems of equations algebraically.
y = x + 2
y= -3
And SHOW YOUR WORK PLEASE!!!!

Answers

Answer:

x = -5

y = -3

Step-by-step explanation:

Since it already gives you the value of y, all you need to do to solve for x, is to plug in the number into the equation, like so:

y = x + 2

-3 = x + 2

Now, subtract 2 from both sides:

-3 = x + 2

-2       - 2

________

-5 = x

So now you have, x = -5 and y = -3

So you first set them equal to each other I pretty sure...

x+2=-3

Then you solve so...

x+2=-3 (bring the two over)

x=-3-2 (you add and keep the negative sign)

x=-5

Let me know how this works out!

Maths attachment Pythagoras theorem

Answers

I think the answer for x is 14.14cm
Sin(45)=x/20
0.70711=x/20
Multyply 20 both sides
x=20•0.70711
x=14.14cm
Final answer:

The Pythagorean theorem, established by the ancient Greek philosopher Pythagoras, defines the relationship in a right-angled triangle between the squares of the lengths of the legs (a and b) and the hypotenuse (c) with the famous equation: a² + b² = c².

Explanation:

The Pythagorean Theorem

The Pythagorean theorem is a fundamental principle in the field of mathematics, specifically in geometry. It was established by the ancient Greek philosopher, Pythagoras, who made significant contributions to understanding the relationships in geometric figures. The theorem reveals a specific relationship between the sides of a right-angled triangle. It states that the square of the length of the hypotenuse (√), which is the side opposite the right angle, is equal to the sum of the squares of the lengths of the other two sides. This can be elegantly expressed in the formula: a² + b² = c². Here, a and b represent the legs of the triangle, while c represents the hypotenuse.

For example, if a right triangle has legs of lengths 9 units and 5 units, using the Pythagorean theorem, we can calculate the length of the hypotenuse. We would square each of the legs (√9² + 5²), add these together, and take the square root to find that the hypotenuse is approximately 10.3 units long.

This theorem is not only a theoretical concept but is also practical in various real-world scenarios, such as calculating distances in navigation. An old adage suggests that the shortest distance between two points is a straight line. When dealing with the distances on a map or between points in space, a right triangle can often form, and using the Pythagorean theorem allows us to calculate the direct straight-line distance (hypotenuse) easily.

Jane took a piece of cardboard and cut out a triangle with measure 32°, 58°, and 90°, and side lengths 5 cm, 12 cm, and 13 cm. What kinda of triangle was cut out?

A. right, scalene
B. right, isosceles
C. isosceles, equilateral
D. acute, scalene​

Answers

The answer is A. Right, Scalene.

This is because 90 degrees = a right angle

32 and 58 are smaller than 90, making it acute or scalene.
Isosceles means at least two sides are equal.
Equilateral means all sides are equal.

In this case, it is not isosceles or equilateral because the sides are not unequal.
It isn’t D. because that option doesn’t say “right”

What is the value of each person?

Answers

X=14
A=12
Y=7
Z=21

Let x stand for the cook.
Let z stand for the reader.
Let y stand for the stretcher.
Let a stand for the doing a split midair.
(Sorry for bad handwriting)

Find the surface area of the solid figure.
Also I will give Brainly Crown for ever answers I need it ASAP

Answers

Answer:

The answer you put is right. Its 1120 :)

Step-by-step explanation:

The height and radius of a cylinder are 23cm and 5cm what the volume?

Answers

Answer:

Around 1806.42

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The length of the lateral edge is 8 meters. The lateral edge makes a 60 degree angle with the base edgeEnter your answer in the box. Express your answer in radical form.x = m A source can be either primary or secondary.Please select the best answer from the choices providedOT One long term consequence of the fall of Rome was that Which of the following planets experiences the strongest gravitational pull from the sun compared to the others? Which injuries do you think require extra care or specialized first aid? 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