Mathematics College

25!
Which expression represents
(25– 12)!12!?
25012
o 23C13
25P 12

25!Which Expression Represents(25 12)!12!?25012o 23C1325P 12

Answers

Answer 1

Answer:

[tex]25C_{12}[/tex]

Step-by-step explanation:

We are given that an expression

[tex]\frac{25!}{(25-12)!12!}[/tex]

We have to find the expression which represents  [tex]\frac{25!}{(25-12)!12!}[/tex].

We know that

[tex]nP_r=\frac{n!}{(n-r)!}[/tex]

[tex]nC_r=\frac{n!}{(n-r)!r!}[/tex]

By using the formula

By comparing we get

n=25,r=12

[tex]\frac{25!}{(25-12)!12!}[/tex]

[tex]=25C_{12}[/tex]

Hence, option a is true.

[tex]25C_{12}[/tex]

Related Questions

help i need help on this​

Answers

Answer:

27

Step-by-step explanation:

im almost possitive that that is right

Answer:

C. 27 [tex]cm^{2}[/tex]

Step-by-step explanation:

For this problem find the area for the three individual segment then add them together.

Step 1: Find area of the rectangle

formula for area of a rectangle: bxh

b-base

h-height

3x6=18

Step #2: Find area of the triangle

Formula for area of a triangle:[tex]\frac{1}{2} bxh[/tex]

b-base

h-height

[tex]\frac{1}{2} (3x3)[/tex]=1/2(9)=4.5

Step #3: Find the area of the triangles total

Because the two triangles have the same area you can just multiply the area of one of the triangles by 2

4.5x2=9

Step #4: Add all the areas together

rectangle+2 triangles

18+9=27

Elisa is making strawberry shortcake. One serving of strawberry shortcake requires one third cup of strawberries and one shortbread biscuit to feed one person. Elisa has a dozen shortbread biscuits and three cups of strawberries. How many people can Elisa serve strawberry shortcake to? How many cups of strawberries will Elisa need if she wants to use all dozen shortbread biscuits? Show all your mathematical thinking.


PLEASE HELP!

Answers

Given, To make a strawberry shortcake for one person, we need :

▪︎[tex] \frac{1}{3} [/tex] cup of strawberry

▪︎one shortbread biscuit

Quantity of strawberries Elisa has = 3 cups

Number of shortbread biscuits she has = 12

Number of shortcakes she can make :

[tex] = \tt3 \div \frac{1}{3} [/tex]

[tex] = \tt\frac{3 \times 3}{1} [/tex]

[tex]\color{plum} =\tt 9 \: people[/tex]

Thus, Elisa can serve strawberry shortcakes to 9 people.

With 12 dozen shortbread biscuits she can serve 12 people.

Quantity of strawberries needed to serve 12 people :

[tex] =\tt \frac{1}{3} \times 12[/tex]

[tex] =\tt \frac{12}{3} [/tex]

[tex]\color{plum} = \tt4 \: cups[/tex]

○=> Therefore :

▪︎Elisa can serve strawberry shortcakes to 9 people.

▪︎Elisa will need 4 cups of strawberries if she wants to use all dozen shortbread biscuits.

directions: solve each equation below and type your answer in the “answer” (next to the question) column. Type all in answers in decimal form.

Answers

Answer:

4. x=48

5. x=241

6. x=43

7. x=173

9.x=94

10. x=17

Step-by-step explanation:

This line is parallel
to the line
2x + 6y = 12.

A) y=-1/3x + 5
B) y=-3x + 1
C) y=3x + 4

Answers

Answer:

Step-by-step explanation:

2x+6y = 12

Rearrange to solve for y

6y = -2x + 12

y = -⅓x+ 2

Slope of line = coefficient of x = -⅓

Parallel lines have the same slope. Answer is A

what number must you add to complete the square?

x^2+14x=3

Answers

Answer: 49

Step-by-step explanation: In order to complete the square, you need a perfect square trinomial on the left side of the equation.

The question is, what is the number we need?

Well it comes from a formula. The number that is added to both sides

comes from half the coefficient of the middle term squared.

So that's half of 14 which is 7, squared which is 49.

The police use a speed gun to monitor one part of a highway. During one hour, 4 out of 25 cars were traveling above the speed limit. What percent of cars were traveling above the speed limit.

Answers

Answer: 16%

Step-by-step explanation: Because if you look at that denominator then you can see that its 25 so if you multiplied that by 4 then you'll get 100 which is 100% so whatever you do to the denominator you have to do to the numerator so 4x4 is 16 so thats 16% and there you go.

Evaluate 4(-9) i need help lol

Answers

Answer:

-36

Step-by-step explanation:

How are you in college lol

Answer:

Multiply  

4  by  − 9 .

− 36

Step-by-step explanation:

At the sewing store, Mia bought a bag of mixed buttons. She got 490 large buttons and 210 small buttons. What percentage of the buttons were large?

Answers

S is what I think the answer is

Find the equation of the exponential function that passes through the points (- 1, 1/6) and (1, 2/3) and Use the form y = c * a ^ x and show how you find the values of and a. Show all work , not just the final equation.

Will give Brainliest to the right answer with steps

Answers

Answer:

y = 1/3*2^x

Step-by-step explanation:

Given function

y = c*a^x

The points (-1, 1/6) and (1, 2/3) lie on the graph

Substitute the values of x and y to get the system of equations:

1/6 = c*a^(-1) ⇒ 1/6 = c/a ⇒ a = 6c2/3 = c*a^1 ⇒ 2/3 = ac

Substitute a and solve for c:

2/3 = 6c*c1/9 = c²c = √1/9c = 1/3

Find a:

a = 6c = 6*1/3 = 2

The equation of the function:

y = 1/3*2^x

Probability is the chance that some event will occur true or false

Answers

Probality is 50% since there is only 2 options correct?

Answer:

true

Step-by-step explanation:

it is a possibility something will occur

Find Sin(r)

Answers to pick from

1.7/25
2.25/24
3.7/24
4.24/25

Answers

it would be 7/25. sin= opposite/hypotenuse

find the 7th term in the sequence?
-1,2,-4,8

Answers

-64 because it is timesing by -2 each time

I need to know Sergio rode mph and Sergio walked mph

Answers

Answer:

73

Step-by-step explanation:

Probably

Sure it good I have this question on my test

I NEED HELP HURRRRRRY

Answers

Answer:

D

Step-by-step explanation:

P=6 and Q=2

-3(6/2)=-9

3(-6/2)=-9

3*6/-2=-9

-6/-3*2=1

p-4=1
A 5
B -5
C 3
D -3

Answers

Answer:

A) 5

Step-by-step explanation:

p - 4 = 1

p = 1 + 4

p = 5

Insta: 25k_kem

Mr Harris had a piece of rope that measured 10 feet. He cut it into 15 equal pieces. How long was each piece?​

Answers

Answer:

I think that it is 8 inches

Step-by-step explanation:

I multiplied 10 times 12 because there is 12 inches in a foot. Then I divided 120 by 8.

I hope this is right

The total of h and b is split into 5 equal groups?

Answers

Answer: (h + b) ÷ 5

Step-by-step explanation:

First add h + b (h +b)

Then divide by 5. (h + b) ÷ 5

Simplify the inequality:
-12.4x+8x > -0.4x-5.2-2.7

Answers

Answer:

x < 1.975

Explanation:

-12.4x + 8x > -0.4x - 5.2 - 2.7

Add similar elements: -12.4x + 8x = -4.4x

-4.4x > -0.4x - 5.2 - 2.7

Subtract -5.2 - 2.7: -7.9

-4.4x > -0.4x - 7.9

Multiply both sides by 10

-4.4x · 10 > -0.4x - 7.9 · 10

Refine

-44x > -4x - 79

Add 4x to both sides

-44x + 4x > -4x - 79 + 4x

Simplify

-40x > -79

Multiply both sides by -1 (Reverse the inequality)

-40x (-1) > -79 (-1)

Simplify

40x < 79

Divide both sides by 40

40x / 40 < 79 / 40

Simplify

x < ⁷⁹⁄₄₀

Turn the fraction into a decimal

x < 1.975

9. Given: TE = GH, EF = HF,
Proof
Fis the midpoint of GI
Prove: AEFI > AHFG
G
10. G
Proof
PE
E
ZE
H

Answers

Souljem

Step-by-step explanation:

souljem yes yes yes

Ms. Cathy bought a package of pencils. Out of every 10 pencils, 8 are black. If there are 30 pencils in the pack, what fraction of the pencing in the pack are black?
What percent of the pencils in the pack are black?
What fraction of the pencils in the pack is black?

Answers

Answer:

Fraction: 24/30 Percentage: 80%

Step-by-step explanation:

It might want a simplified version of the fraction, so the answer for that one could be 4/5. I hope this helps :)

The percent of the pencils in the pack are black is,

⇒ 80%

And, The fraction of the pencils in the pack is black is,

⇒ 24 / 30

What is mean by Percentage?

A number or ratio that can be expressed as a fraction of 100 or a relative value indicating hundredth part of any quantity is called percentage.

To Calculate the percent of a number , divide the number by whole number and multiply by 100.

Given that;

Ms. Cathy bought a package of pencils.

And, Out of every 10 pencils, 8 are black. .

Since, There are 30 pencils in the pack,

Hence, The percent of the pencils in the pack are black is,

⇒ 24 / 30 x 100

⇒ 2400 / 30

⇒ 80%

And, The fraction of the pencils in the pack is black is,

⇒ 8 / 10 = x / 30

⇒ 240 = 10x

⇒ x = 24

Thus, The fraction of the pencils in the pack is black is,

⇒ 24 / 30

Thus, The percent of the pencils in the pack are black is,

⇒ 80%

And, The fraction of the pencils in the pack is black is,

⇒ 24 / 30

Learn more about the percent visit:

https://brainly.com/question/24877689

#SPJ2

Write an equation in standard form that has a slope of - and a y-intercept of -2.
Y +
Review progress
Question 2
of 12

Answers

Answer:

y= 3x-2

Step-by-step explanation:

standard form

y= mx + c

 c represents y intercept

m represents slope or gradient

y= 3x-2

The slope is 3 and the y intercept in -2

pls help i really need it

Answers

Answer:

.................

Step-by-step explanation:

Plot the image of triangle mAABC under a reflection across the y-axis.

Answers

Answer:

3

Step-by-step explanation:

3

Answer:

move the bottom of the green triangle back to -4


10 points
2) n - (1 -m): use m = 1, and n= 5

Answers

Answer:

0

Step-by-step explanation:

Answer:

6

Step-by-step explanation:

The answer is 6 b/c 1 . -1 =  -1 and then you do 5- -1 and that is 6 soooooooooo

yeah :3

GIVING ALOT OF BRAINS FAST!

Brendon is building a clubhouse where 11 inch on the plans is equivalent to 88 inches on the actual clubhouse.




If the clubhouse is to be 160 inches wide, what will the width be on the plans?




Round answer to the nearest hundredth if necessary.

Answers

20

160/8=20

88/8=11

i hope this one helps !!

Answer:

20,020 in. on the plans

Step-by-step explanation:

To get from 11 in. to 88 in. (from plans to real life), you multiply by 8.

Therefore, to get from 160,160 to ?? (from real-life to plans), you would divide by 8.

160,160 / 8 = 20,020

To check, you can multiply 20,020 by 8 to go from plans to real-life measurements; 20,020 • 8 = 160,160)

for every 5 coins carmen gets, she gives 2 to her brother frank. if carmen has 9 coins, how many does frank have? Explain.

Answers

Answer:

i think it's 3

Step-by-step explanation:

correct me if im wrong but

5 : 2

9 : x

x = 18 / 5 = 3.6

since x can't be a fraction, i just guessed it's 3 lol

Find the total surface area of this prism.

Answers

Answer:

63

Step-by-step explanation:

[tex]15m^{2}[/tex]

Hope this helps!! plz mark brainliest??

Jason bought some stickers on Saturday. He used 5 of them that same day. When he went back on Sunday, he bought 4 more stickers. Write an expression that represents the number of stickers Jason has.

Answers

Answer:

[tex]Stickers = s - ![/tex]

Step-by-step explanation:

Analysing the question, line by line.

Let the number of stickers be s/

So:

[tex]Stickers = s[/tex]

He used 5 of them

[tex]Stickers = s - 5[/tex]

He bought 4 more

[tex]Stickers = s - 5 + 4[/tex]

[tex]Stickers = s - ![/tex]

HW HELP ASAP GRAPHS PLZ

Answers

Answer:

Step-by-step explanation:

Slope intercept form of a line is

y=mx+b, where m=slope and b=y intercept

m=(y2-y1)/(x2-x1) I chose points (0,3) and (4,4) from graph so

m=(4-3)/(4-0)=1/4 so now the line is

y=x/4+b, using point (4,4) we can solve for b

4=4/4+b

4=1+b

b=3 so the line is

y=x/4+3 or more neatly

y=(x+12)/4

(25m + 22) + (9m) = ?​

Answers

Answer:

Step-by-step explanation:

Simplifying

25m + 22 = 9m

Reorder the terms:

22 + 25m = 9m

Solving

22 + 25m = 9m

Solving for variable 'm'.

Move all terms containing m to the left, all other terms to the right.

Add '-9m' to each side of the equation.

22 + 25m + -9m = 9m + -9m

Combine like terms: 25m + -9m = 16m

22 + 16m = 9m + -9m

Combine like terms: 9m + -9m = 0

22 + 16m = 0

Add '-22' to each side of the equation.

22 + -22 + 16m = 0 + -22

Combine like terms: 22 + -22 = 0

0 + 16m = 0 + -22

16m = 0 + -22

Combine like terms: 0 + -22 = -22

16m = -22

Divide each side by '16'.

m = -1.375

Simplifying

m = -1.375

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