Mathematics College

What is the value of the expression?
11C7

Answers

Answer 1

...... The answer is 330

Answer 2

9514 1404 393

Answer:

330

Step-by-step explanation:

nCk can be computed from the formula ...

nCk = C(n, k) = n!/(k!(n-k)!)

Here, that is

11C7 = 11!/(7!(11-7)!) = 11·10·9·8/(4·3·2·1) = 11·10·3 = 330

_____

Additional comment

Many graphing or scientific calculators have probability functions that will compute this for you.

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what is the dilation the bigger one is the original.

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The dilation on MNOP is 1/3, MNOP deceased as shown in the picture. Explanation- count three right and one down from the origin to N’. After that you go three right and one down twice to get to N

i will give you brainlist

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Answer:

12 for 7$

Step-by-step explanation:

Answer:

Step-by-step explanation:

Six cans for $4

Please help! This is algebra btw

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Answer:

yellow

Step-by-step explanation:

An art teacher mixes 5 parts blue paint and 3 parts white paint to make a light blue color to paint a Tar Heels logo on a school mural. If she needs a total of 40 gallons of light blue paint to paint the mural, how many gallons of blue paint will she use?

Answers

Answer:

Step-by-step explanation:

For starters, we make the following assumptions

Let the blue paint be represented by x

Let the white paint be represented by y

Now, forming an inequality equation from the question, we can say that

5x + 3y = 1

And from the second part, we are told that 40 gallons of light blue paints are needed.

If 5x + 3y = 1, then multiplying all by 40, we have

200x + 120y = 40

This means that 200 parts of blue paints is needed to be mixed with 120 parts of white paints to get the desired 40 gallons.

There are 4 parts in a gallon, so 200 parts = 200/4 gallons, = 50 gallons of blue paints

Midpoint rule with given value

Answers

9514 1404 393

Answer:

M₅ = 1.6570

Step-by-step explanation:

The basic idea is to find the function values at x ∈ {1.1, 1.3, 1.5, 1.7, 1.9}, add those values, and multiply the result by 1/5. Those x-values are the midpoints of intervals 0.2 units wide, between x = 1 and x = 2. The width 0.2 is the total interval width (2-1=1) divided by n = 5.

The calculation and results are shown in the attachment. Rounded to 4 decimal places, the integral is ...

M₅ = 1.6570

The actual integral is about 1.6574, so this is pretty close.

Need help with this....

Answers

Answer:

Step-by-step explanation:

try substituting the points into both of the equations like it's a slope equation.

64 3/4 is equivalent to

Answers

The Equivalent fraction to 64 3/4 is 259/4.

What is Fraction?

The fractional bar is a horizontal bar that divides the numerator and denominator of every fraction into these two halves.

The number of parts into which the whole has been divided is shown by the denominator. It is positioned in the fraction's lower portion, below the fractional bar.How many sections of the fraction are displayed or chosen is shown in the numerator. It is positioned above the fractional bar in the upper portion of the fraction.

We have 64 3/4.

First change the mixed fraction into normal fraction as

64 3/4

= (4 x 64+3)/ 4

= 259/4

Learn more about Fraction here:

https://brainly.com/question/10354322

#SPJ5

There were 4 students at the football game. They had 6 sodas to share
equally. How much soda did each child get?

Answers

Answer:

1.5

Step-by-step explanation:

6/4=3/2

3/2=1 1/2

1.5

Answer:

1.5

Step-by-step explanation:

Why does (-5) (-5) (-5) have a negative product?

Answers

Answer:

Yes, -125

Step-by-step explanation:

Write the equation in slope-intercept form.
5x +
5y = 35

Answers

Answer:

y = -x + 7

General Formulas and Concepts:

Pre-Algebra

Equality Properties

Multiplication Property of Equality Division Property of Equality Addition Property of Equality Subtract Property of Equality

Algebra I

Slope-Intercept Form: y = mx + b

m - slope b - y-intercept

Step-by-step explanation:

Step 1: Define

[Standard Form] 5x + 5y = 35

Step 2: Rewrite

Find slope-intercept form.

Subtract 5x on both sides: 5y = -5x + 35Divide 5 on both sides: y = -x + 7

find the multiplication inverse of the following (1) -3
5

Answers

If the equation is (1)-35 the answer is -34.

vince has 1/2 ton of gravel to spread equally in 8 square yards for his driveway how many tons of gravel will be spread in each square yard

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Answer:

Is there any answer choices so I have some opions

Step-by-step explanation:

The priduct of seven and p

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Answer: 7 * p = 7p

Step-by-step explanation:

IN NEED OF HELP PLEASE

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Answer:

yes b aas

Step-by-step explanation:

What percentage of the flag is taken up by the union?

Answers

I don’t know really but my guess is 62%

Write an explicit rule to represent the sequence: 20, 24, 28, 32, 36....

Please help, I don't understand.

Answers

Answer:
They are counting by 4, because if you look at numbers, they are counting by 4
Sorry if wrong! Have a great day luv <3
-Bee

I need help ASAP! Thank you :)

Answers

Answer:

1/3

Step-by-step explanation:

sin=p/h

p/h= 3/9

3/9=1/3

A rug is 12 feet wide and 15 1/2 long. What is the area of the rug?

Answers

Answer: 186 ft^2
Explanation: Area=L • W
12ft • 15.5ft =186ft^2

Answer:

It Is 186ft

Step-by-step explanation:

Write an equivalent equation by combining like terms.
6a + 5 + 2a - 4

Answers

8a+1
Hope that helps:p

PLSSSS HELLPPPP MEEEEE I WILLL GIVEEE BRAINLIESSSTTT!!!!

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Answer:

4 quizzes are taken per week

Find simple interest. The rate is an annual rate unless otherwise noted. Assume 365 days in a year and 30 days per month. $1,300 at 4.25% for a year

Answers

Answer:

$55.25

1,300×0.0425=$55.25

Solve the inequality and graph the solution.
m - 6 > 2
To draw a ray, plot an endpoint and select an arrow. Select an endpoint to change it from
closed to open. Select the middle of the ray to delete it.
+ + +
+ + + + +
0 1 2. 3 4 5
6 7 8 9
3
4
CO
10
Submit

Answers

Answer:

Solving the inequality [tex]m - 6 > 2[/tex] we get [tex]\mathbf{m> 8}[/tex]

The graph is shown in figure attached.

Step-by-step explanation:

We need to solve the inequality and graph the solution.

[tex]m - 6 > 2[/tex]

First solve the inequality

[tex]m - 6 > 2\\[/tex]

Adding 6 on both sides

[tex]m-6+6>2+6\\m>8[/tex]

Solving the inequality [tex]m - 6 > 2[/tex] we get [tex]\mathbf{m> 8}[/tex]

Now, we will plot m > 8 on the graph

The graph is shown in figure attached

There will be an open circle on 8 as (m > 8) and line moves on right sides of 8.

Wich equation has a solution of 2/3 for n?

Answers

Answer:

[tex]15n=10\\\\n=\dfrac{10}{15}\\\\n=\dfrac{2}{3}[/tex]

Step-by-step explanation:

We need to find out of 4 options which equation has a solution of 2/3 for n.

Equation (1).

[tex]n-1=\dfrac{1}{3}\\\\n=\dfrac{1}{3}+1\\\\n=\dfrac{4}{3}[/tex]

Equation (2).

[tex]16n=24\\\\n=\dfrac{24}{16}\\\\n=\dfrac{3}{2}[/tex]

Equation (3).

[tex]15n=10\\\\n=\dfrac{10}{15}\\\\n=\dfrac{2}{3}[/tex]

Equation (4).

[tex]1\dfrac{1}{3}+n=3\\\\n=3-\dfrac{4}{3}\\\\n=\dfrac{5}{3}[/tex]

So, equation (3) has a value of n as 2/3. Hence, the correct option is (3).

16. Which statement best describes a margin of error?

A. the difference between a sample mean and a population proportion
B. the value of error between a sample mean and a population proportion
C. the difference between a sample mean and a population mean
D. the value of error between a sample statistic and an actual population parameter

Answers

Answer: D. the value of error between a sample statistic and an actual population parameter

Step-by-step explanation:

In a study , the margin of error gives the amount of the random variation of the actual result from its estimation.

So, it is the value of error between a sample statistic( which is estimated population parameter until actual is known) and an actual population parameter.

Hence, the best statement to represent the margin of error :

D. the value of error between a sample statistic and an actual population parameter

I will give brainiest to who ever helped me on this one

Answers

I guess I was wrong

oopsss

Answer:

4 hours.

Step-by-step explanation:

Okay, so they leave the same port. Since they are traveling at the same rate at 24mph, in one hour they will each be 24 miles from the port. Since they are going in opposite directions, they will be 24+24= 48 miles apart. Let another hour pass. They each go 24 more miles from the port so add another 48 to their distance apart. Now their distance is 96 miles apart. Let a third hour pass. Add 48. Now their distance is 144 miles apart. Let the fourth and final hour pass. Now they are 192 miles apart. So, it'll take them 4 hours to be 192 miles apart.

A visual way to interpret this problem is on a number line. We'll have steamer A going to the right of our origin 0 (the port) and steamer B going left. After one hour, steamer A will be at 24 on the number line, and steamer B will be at -24. the distance between these two points is 48. If you continue with the second, third and fourth hours they will each be going 24 points further from the origin, making their distance grow further and further apart by 48 points each hour.

I also completed the table for you :)

Hope this helps.

Check all that apply. sec is undefined for =

Answers

I don’t think you put the whole question

Answer:

3pi/2 pi/2

Step-by-step explanation:

trust

How do I solve for x?

Answers

Answer:

Step-by-step explanation:

determinant= (-1/2*10)-(-2*x)=25

-5-(-2x)=25

-5+2x=25

2x=30

x=30/2=15

helppppppppp plzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz

Answers

Answer:

Step-by-step explanation:

Darius buys a bottle of a chemical solution that contains 70% alcohol. The bottle contains 500 milliliters of solution.

How many milliliters of alcohol are in the solution?

Answers

Answer:

350 ml

Step-by-step explanation:

70% of 500 ml = 0.7*500 ml = 350 ml

Answer:

350 ml

Step-by-step explanation:

70% of 500 ml = 0.7*500 ml = 350 ml

The graph below shows a proportional relationship between yyy and xxx.
What is the constant of proportionality, \dfrac{y}{x}
x
y

start fraction, y, divided by, x, end fraction ?

Answers

Answer:

[tex]k = 40[/tex]

Step-by-step explanation:

Given

The attached graph

Required

Calculate the constant of proportionality.

Represent the required constant with k.

Such that:

[tex]k = \dfrac{y}{x}[/tex]

Pick any two corresponding values of x and y

[tex](x,y) = (1,40)[/tex]

This means that:

[tex]x = 1\ and\ y = 40[/tex]

[tex]k = \dfrac{y}{x}[/tex] becomes

[tex]k = \frac{40}{1}[/tex]

[tex]k = 40[/tex]

Answer:

3.5

Step-by-step explanation:

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What is the value of the expression? 11C7

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What is the value of the expression?
11C7