(80 pts) How many different ways can a captain and a co-captain be selected for a rugby team if there are 10 players?

Answers

Answer 1

Answer:

There are 90 different ways

Step-by-step explanation:

We can apply factorials to help solve this equation.

Just to review, 4!= 4x3x2x1

To solve this problem, we need to use factorials but only a portion of it.

Since there are only 2 roles, we only have to go down two numbers

For captain, there are 10 players available,

But for co captain, there are 9, because the captain can't also be the co captain

So the result is 10x9

We don't have to go further since there are no more further roles to occupy

10x9=90

There are 90 different ways

Answer 2

Answer:

45 if two co-captains or 90 if captain and co-captain are two DISTINCT roles.

Step-by-step explanation:

METHOD ONE

Label each player (either a through j OR 1 - 10).

List combinations:

a ba c a da ea f a ga ha ia jb c (not "b a" because that would be the same as #1)b db eb fb gb hb ib jc d (not "c a" or "c b" because those would be duplicates)c ec fc gc hc i c jd ed fd gd hd id je fe ge he ie jf gf hf if jg hg ig jh ih jj i

METHOD 2

use formula


Related Questions

1) Explain the Distributive Property in your own words.

2) Give an example that shows how to use the Distributive Property to rewrite a one-variable expression.

Answers

Answer:

The Distributive Property states that when a number in parentheses is next to a number, you distribute the number outside of the parentheses and multiply by each of the numbers in parentheses.

5(10+x)=5(10)+5(x)=50+5x

:)

In which quadrant does the point (25 , 21) lie? A. Quadrant I B. Quadrant IV C. Quadrant III D. Quadrant II

Answers

A) Quadrant 1

Not 2,3,4

Answer:

A

Step-by-step explanation:

Both of the coordinates are positive. The quadrant that has points with positive x and y coordinates is Quadrant I.

What is the perimeter of this polygon?
(2,3)
(-4, 2)


(3,-2)
(-2, -3)
A. 25.5 units
B. 21.7 units
O C. 24.4 units
D. 22.8 units

Answers

The answer to this question is D

In how many different ways can 6 people be seated at a round table

Answers

120

1x5x4x3x2x1

The nth term is going to be (n-1)

A box of cereal is supposed to weigh 13.8 oz, but it's acceptable for the weight to vary as much as
0.1 oz. Write and solve an absolute value inequality to find the range of acceptable weights.

Answers

The answer is 1.0 hope it helped

Help with this question(will gove thanks and brainlist)(Your suppose to determine the pattern and then fill in the 3 blanks)

Answers

Answer:

Step-by-step explanation

1.  8/9, 9/9, 10/9

2.  1/64, 1/128, 1/256

3.  -39, -48, -57

Answer

8/9,1,1 1/9

1/64, 1/128, 1/256

Step-by-step explanation:

the second sequence you just add1\9 each time then the other one you just double the denominator.

the amount of fluid that a three dimensional object can hold is called

Answers

Answer:

Volume

Step-by-step explanation:

Volume is the space of a three-dimensional object, that can hold an amount of fluid.

Answer:

The answer is the Capacity or volume.

Step-by-step explanation:

This is usually measured in the metric system using a basic unit.

Plz help asap!!!!!!!

Answers

282600 yards because the formula is pi times radius squared. The radius was 300

A motor is 85.4 % efficient: that is, the output is 85.4 % of the input.
What is the input if the motor delivers 10.75 hp. ( Round your answer to 1
decimal place.)

Answers

Answer:

12.6 hp

Step-by-step explanation:

output of motor = 85.4% of input of motor.

Given that motor delivers 10.75 hp, it means output of motor is 10.75hp

Using both the given conditions

10.75 = 85.4% of input of motor

=> 10.75 = 85.4/100  * input of motor

=> input of motor = 10.75*100/85.4 = 1075/85.5 hp = 12.57 hp.

Input of motor rounded to 1 decimal place = 12.6 hp

explain the words and the connections of population ,area, urban,and density

Answers

Step-by-step explanation:

1. Population Area: this can be defined as a group of similar species

                                  inhabiting/ co-existing in a defined location or space

2. Urban population: urban areas are often more developed areas with                                                                   greater population than rural environments

                                   it's the people living in cities.

3. Population density: this  is a measurement of population per unit area..

Which expression is equivalent to (x Superscript one-half Baseline y Superscript negative one-fourth Baseline z) Superscript negative 2? StartFraction x Superscript one-half baseline Over y z squared EndFraction StartFraction x Superscript one-half baseline Over y Superscript one-fourth Baseline z squared EndFraction StartFraction y Superscript one-half Baseline Over x z squared EndFraction

Answers

Answer:

[tex]\frac{x^{\frac{1}{2}}}{y^{\frac{1}{4}}z^2}[/tex]

Step-by-step explanation:

Given

[tex]x^{\frac{1}{2}}y^{-\frac{1}{4}}z^{-2}[/tex]

Required

Find the equivalent

To find the equivalent of the given expression; we have to apply laws of indices;

As a law;

[tex]a^{-m} = \frac{1}{a^m}[/tex]

So; the expression [tex]x^{\frac{1}{2}}y^{-\frac{1}{4}}z^{-2}[/tex] becomes

[tex]x^{\frac{1}{2}}*\frac{1}{y^{\frac{1}{4}}}*\frac{1}{z^2}[/tex]

This is further simplified to

[tex]x^{\frac{1}{2}}*\frac{1}{y^{\frac{1}{4}} * z^2}[/tex]

[tex]x^{\frac{1}{2}}*\frac{1}{y^{\frac{1}{4}}z^2}[/tex]

Combine to form a single fraction

[tex]\frac{x^{\frac{1}{2}}*1}{y^{\frac{1}{4}}z^2}[/tex]

Multiply numerator

[tex]\frac{x^{\frac{1}{2}}}{y^{\frac{1}{4}}z^2}[/tex]

The expression can not be further simplified

Hence [tex]x^{\frac{1}{2}}y^{-\frac{1}{4}}z^{-2}[/tex] is equivalent to [tex]\frac{x^{\frac{1}{2}}}{y^{\frac{1}{4}}z^2}[/tex]

Answer:

c

Step-by-step explanation:

x has a exponent of -1 after multiplying 1/2 and -2, so x has to be in the denominator of the answer no matter what.

Hope this helped other than the guy above lol

Subject algebra I just wanted to know if these are good if not please correct me

Answers

Answer:

Correct

Step-by-step explanation:

Everything seems correct.  I would just put the two answers for questions 3 & 4 in the separate boxes, instead of having two answers in each box.

the two rectangular similar

no the ratios of corresponding sides are not equal

yes the lengths of the corresponding sides form equal ratios

no. the figures are facing different directions

yes they are both rectangles ​

Answers

Answer:

no the ratios of corresponding sides are not equal

Step-by-step explanation:

For two rectangles to be considered similar, the ratio of the length of their corresponding sides must be of equal measure.

Let's find out if the 2 given rectangles are similar or not by finding the ratio of the length of their corresponding sides as follows:

3/3 = 1

4/6 = 2/3

Thus, 3/3 ≠ 4/6

The ratio of their corresponding sides are not equal. Therefore, the two rectangles bare not similar.

The answer is: "no the ratios of corresponding sides are not equal".

Find a quadratic polynomial the sum and product of whose zeroes are -8 and 12 respectively. Hence find the zeroes.

Answers

Step-by-step explanation:

We khow the sum and the product of the zeroes of this quadratic polynomial

Here is a trick :

when we khow the sum S and the product P ofvtwo numbers we can find them by solving :

x²-Sx+p=0

here S= -8 and P=12

so:

x²+8x+12=0

Let Δ be the discrminant of this equation: a= 1 , b= 8 and c=12

Δ= 8²-4*12 =16

the zeros are:

(-8-4)/2= -6

(-8+4)/2 = -2

verify:

-6+(-2)= -8

-2*(-6)= 12

now the polynomial quadratic is:

(x+6)(x+2)

The box-and-whisker plots below represent the scores for two basketball teams throughout an entire season of games. Which of the two teams had the highest score in a single game?

Answers

Answer:

90

Step-by-step explanation:

*One half of two fifths of x.

Answer: Red Hawks

We can see this by looking at the max value of the bottom box plot. This is the tip of the whisker on the right. This value (115) is larger than the corresponding max for the Gophers (110).

If a sample consists of the following data values, what is the sample mean?
13, 91, 44, 68, 54, 16, 88, 74

Answers

Answer:

mean =sum of all data values

total number of data

13+91+44+68+54+16+88+74

8

448

8

=56

therefore the mean is 56

Answer: 51

Step-by-step explanation:

A nautical mile is the unit of length used in sea and air navigation. A
nautical mile is equal to 6,174 feet. What percent of a statute mile, (5,360
feet) is a nautical mile? (Round to the nearest hundredth.)

Answers

Answer:

86.82%

Step-by-step explanation:

A nautical mile = 6,174 feet.

Statute mile =5,360 feet

The percentage of a statute mile to a nautical mile is calculated as:

5360/6174 × 100

= 0.8681567865 × 100

= 86.81567865%

Approximately to the nearest hundredth = 86.82%

Therefore, the percent of a statute mile that is a nautical mile rounded to the nearest hundredth is 86.82%

rewrite the rational exponent as a radical by extending the properties of integer exponents

Answers

Answer:

Step-by-step explanation:he correct answer is:

the eighth root of 2 to the fifth power .

Explanation:

What we have is:

Using the rules of exponents, we know that when we divide powers with the same base, we subtract the exponents. The base of each exponent is 2, so we subtract:

7/8 - 1/4

We find a common denominator. The smallest thing that both 8 and 2 will evenly divide into is 8:

7/8 - 2/8 = 5/8

This gives us:

When rewriting rational exponents as radicals, the denominator is the root and the numerator is the power. This means that 8 is the root and 5 is the power, which gives us:

,

or in words, the eighth root of 2 to the fifth power.

There are two right circular cylinders. The radius of the first cylinder is 4 centimeters, and its height is 5 centimeters. The radius of the second cylinder is 12 centimeters, and its height is also 5 centimeters. What is the ratio of the volume of the larger cylinder to the volume of the smaller cylinder? A. 3:1 B. 5:1 C. 6:1 D. 9:1

Answers

Answer:

D. 9:1

Step-by-step explanation:

The formula for the volume of a cylinder is πr² · h (pi · radius² · height) (use 3.14 for pi).

The two right circular cylinders have the same height. The larger cylinder has a radius that is three times the size of the smaller radius.

4 · 3 = 12

However, in the equation for volume, the radius is squared. Because of this, the larger cylinder is 9 times the size of the smaller cylinder because 3² = 9.

You can check your work by finding the volume of the two cylinders using the volume formula πr² · h:

3.14 · 4² · 5 = 251.2

3.14 · 12² · 5 = 2,260.8

The cylinder with a radius of 12 cm is 9 times the size of the cylinder with a radius of 4 cm.

2.260.8 ÷ 9 = 251.2

Answer:

252.1

Step-by-step explanation:

HELP!!! How far have I travelled if I biked at 10mph for hhrs, I walked at 3mph for twice as long as I biked, and ran at 10mph for one quarter as long as I walked?

Answers

Answer:

  21h miles

Step-by-step explanation:

The appropriate relation is ...

  distance = speed · time

__

We are given that ...

  biking time = h

  walking time = 2h

  running time = (1/4)(2h) = h/2

The total distance traveled is ...

  total distance = biking distance + walking distance + running distance

     = (10)(h) +(3)(2h) +(10)(h/2)

     = 10h + 6h + 5h

  total distance = 21h . . . miles

Answer:

21h miles

Step-by-step explanation:

The appropriate relation is ...

 distance = speed · time

__

We are given that ...

 biking time = h

 walking time = 2h

 running time = (1/4)(2h) = h/2

The total distance traveled is ...

 total distance = biking distance + walking distance + running distance

    = (10)(h) +(3)(2h) +(10)(h/2)

    = 10h + 6h + 5h

 total distance = 21h . . . miles:

A rectangle has a perimeter of 269.4 miles and a base of 77.6 miles. What is the height?

Answers

Answer:

you have to divivide both number to find the height=57.1

Step-by-step explanation:

Step-by-step explanation:

Perimeter = 2×(Height × Base)

269.4 = 2(Height × 77.6)

269.4 = 155.2 × 2Height

2Height = 114.2

Height = 57.1 miles

A ramp is being built to an entrance of a school. The ramp will begin 4 feet from the entrance and have an incline of 6°. How long is the ramp? Question 18 options: A) 38.06 units B) 3.82 units C) 38.27 units D) 4.02 units

Answers

Answer:

D) 4.02 units

Step-by-step explanation:

This will be a right triangle, where b = 4 and angle A is 6 degrees

We want to find c

cos A = adjacent / hypotenuse

cos 6 = 4/c

c cos 6 =4

c = 4/ cos 6

c =4.022033118

Please hurry❗️❗️❗️!!!!!!

Which expression is equivalent to a+(C+7)?
О 7ac
O a-(C+7)
O (C+7)-a
0 (a+c) + 7

Answers

Answer:

The answer is (a+c) + 7

Since addition is associative a + ( C + 7) can also be written as (a+c) + 7

Hope this helps you

Answer:

(a+c)+7

Step-by-step explanation: This method is called associative property.

On addition changing the order brings no change to the answer. For example:- 2+3=3+2. but don't confuse this with multiplication. For example, if the question was a(c+7), then you are supposed to multiply c, + and 7 by a.

Hope it would help :)

Bob traveled 90 miles which was 83 1 3 % of his entire trip. How many miles did he have left?

Answers

The answer is going to be 7

Answer:

Bob has 18 more miles to go

Step-by-step explanation:

90 ÷ 83 1/3 • 100 = 108

108 - 90 = 18

18 miles

What transformations were applied to ABC to obtain A'B'C'?
A. rotate 180 degrees counterclockwise, then shift 3 units down
B. rotate 270 degrees counterclockwise, then shift 3 units down
c. rotate 180 degrees counterclockwise, then shift 3 units up
D. rotate 270 degrees counterclockwise, then shift 3 units up
O

Answers

A
You can also find this on google

The required transformation is to rotate 270 degrees counterclockwise, then shift 3 units down. Option B is correct.

What is the geometry across the coordinate plane transformation?

Transform the coordinate plane's shapes by translating, rotating, or reflecting them. In the 19th century, Felix Klein introduced transformational geometry, a novel perspective on geometry.

Here,
In the graph, triangle ABC is transformed into triangle A'B'C' by a combination of rotation and translation. First, the triangle is rotated 270 degrees counterclockwise around the origin. Then, the resulting triangle is shifted 3 units down.

Thus, the required transformation is to rotate 270 degrees counterclockwise, then shift 3 units down. Option B is correct.

Here's where you can find out more about transformation: brainly.com/question/18065245
#SPJ7


Find the missing segment in the attached image

Answers

Answer:

The length of the missing segment is 24

Step-by-step explanation:

Given

The figure above

Required

Determine the missing segment

Let the missing segment be represented with x

Given that, there exist parallel lines between the two triangles;

The relationship between the sides of the triangles is as follows;

[tex]\frac{15}{x} = \frac{15+5}{8+x}[/tex]

[tex]\frac{15}{x} = \frac{20}{8+x}[/tex]

Cross Multiply

[tex]15 * (8 + x) = 20 * x[/tex]

Open bracket

[tex]15*8 + 15 * x = 20 * x[/tex]

[tex]120 + 15x = 20x[/tex]

Subtract 15x from both sides

[tex]120 + 15x -15x= 20x-15x[/tex]

[tex]120 = 20x-15x[/tex]

[tex]120 = 5x[/tex]

Divide both sides by 5

[tex]\frac{120}{5} = \frac{5x}{5}[/tex]

[tex]\frac{120}{5} = x[/tex]

[tex]24 = x[/tex]

[tex]x = 24[/tex]

Hence, the length of the missing segment is 24

What is the cost of an $8,000 car including 5½% tax?

Answers

Answer:

Car Price:

$8,000.00

Interest Paid:

$492.48

Sales Tax:

$448.00

Total Cost:

$8,940.48

Reflection over the y-axis and a translation of shifting down 7 units.

Answers

Answer:  (-x, y-7)

Step-by-step explanation:

A reflection across the y-axis changes the sign of the x-value.

(x, y)   →  (-x, y)

Shifting down 7 units subtracts 7 from the y-value.

(-x, y)   →   (-x, y-7)

What is the equation, in point-slope form, of the line that
is perpendicular to the given line and passes through the
point (-4, -3)?
2
y + 3 = -4(x + 4)
y + 3= -1/4x + 4)
y + 3 = 1/4x + 4)
y + 3 = 4(x + 4)

Answers

Answer:

the answer is y+3=1/4x+4

5. Which model is most appropriate for the data shown in the graph below?


Answers

Hey there! :)

Answer:

Exponential.

Step-by-step explanation:

Exponential is the best choice because the graph is increasing geometrically. This means that the parent function of the equation looks like this:

[tex]f(x) = a(b)^{x}[/tex]

The shape of this equation will resemble an curve that has a horizontal asymptote that the graph will not intersect.

We can also narrow down each choice:

a) Quadratic. Incorrect because the graph pictured is not a parabola.

b) Linear. Incorrect because the rate of change is not constant, and the graph is not a straight line.

c) Most probable answer.

d) Incorrect.

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