How many subsets of 5 e elements can be made from a set of 7 elements?

Answers

Answer 1

Answer:

seems like this.

Step-by-step explanation:

From set theory, the factorial combinations are 2^N where N are the number of induvidual mambers of the set and that includes the null set. If we require that one element be the minimum to form a set, this eliminates the empty set (and there is only one empty set) so we must subtract one from the formula. The correct answer is therefore 2^N-1. In this case that is 2^5–1 = 31.


Related Questions

A parachutists speed during a free fall reaches 153 miles per hour. What is this speed in feet per second? at this speed, how many feet will the parachutist fall during 15 seconds of free fall? in your computations, use the fact that 1 mile is equal to 5280 feet. do not round your answer

Answers

153 miles x 5280 feet per mile = 807,840 feet per hour.

1 hour = 3600 seconds.

The speed is 807,840 feet / 3600 = 224.4 feet per second.

Distance in 15 seconds = 224.4 x 15 = 3,366 feet.

The height of the rocket after t seconds is given by the equation h(t) = -16t² + 42t

What is an equation?

An equation is an expression that shows the relationship between two or more variables and number.

1 mile = 5280 feet, 1 hour = 3600 seconds

153 miles per hour = (153 * 5280) / (3600) ft/s = 224.4 ft/s

After 15 seconds, height = 224.4 ft/s * 15 s = 3366 ft

The speed of the parachute is 224.4 ft/s, while after 15 seconds the distance fell was 3366 ft.

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13-4x=1-x Please help 20 POINTS

Answers

Answer:

x will equal to 4

x = 4

13-4x=1-x
+x = -13
3x = 12

is 4:3 and 3:4 equivalent

Answers

Answer: No

Step-by-step explanation:

sorry but nope...........

Nina earned $35 babysitting. She went to the store and bought 2 CD's. The first CD she chose was priced at $13. The second CD was originally priced at $20.00 and was on sale for $15. After buying the CD's Nina then went to the grocery store with her mother. Her mother spent $6 on Nina's favorite brand of juice. How much money does Nina have left?

Answers

1 dollar

Explanation
15+13=28
28+6=34
35-34=1

The late fee at the library is based on the number of days a book is late. Carter paid $1.08 for a book that was 9 days late. If his sister Sydney had a fee of $1.92 for a late book, how many days late was the book?​

Answers

Answer:

16 days

Step-by-step explanation:

1.08 $:9 days

1.92 $: x

1.08 x: 17.28

x = 16

Choose the simplified form of the expression,
5x + 6x?- 2x + x
I need it fast please!!!

Answers

Answer:

10x

Step-by-step explanation:

If the question mark is an accident, the answer is 10x.

5x+6x-2x+x

11x-2x+x

9x+x

10x

Hi :)

First add 5x and 6x
5x + 6x = 11x

11x -2x + x

Combine 11x and -2x to get 9x

9x + x= 10x

Hope this helps!

Rewrite the following equation in slope-intercept form.
17x + 18y = -6

Answers

Answer:

y= -17/18x-1/3

Step-by-step explanation:

The slope-intercept form of the equation is y = (-17/18)x -1/3.

What is linear equation?

Equations whose variables have a power of one are called linear equations. One example with one variable is where ax+b = 0, where a and b are real values and x is the variable.

Given:

A linear equation 17x + 18y = -6.

To find the slope-intercept form:

Simplifying,

17x + 18y = -6

18y = -6 -17x

y = -17/18x -1/3

Therefore, y = (-17/18)x -1/3 is the slope-intercept form.

To learn more about the linear equation;

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According to the U.S. Geological Survey, the Mississippi River is 200 mi
shorter than the Missouri River. Together, they cover a total of 4880 mi.
How long is the Missouri River? *

Answers

the answer would be 4,680 miles

0.5f - 2.3g

F= 12, g = 2

Answers

Hi there & welcome to brainly !

Answer:

[tex] \huge{ \bold{ \boxed{ \tt{1.4}}}}[/tex]

Step-by-step explanation:

[tex] \text{Given : f \: = \: 12 \: g = 2}[/tex]

[tex] \text{To \: find : Value \: of \: given \: expression}[/tex]

[tex] \text{Let's \: start}[/tex] :

[tex] \text{0.5f \: - 2.3g}[/tex]

Here, The values of f and g are 12 and 2 respectively. Plug the given values :

↦ [tex] \text{0.5 ∗ \: 12 - 2.3 ∗ 2}[/tex]

Multiply : 0.5 and 12

↦ [tex] \text{6 - 2.3 \: ∗ \: 2}[/tex]

Multiply : 2.3 and 2

↦ [tex] \text{6 - 4.6}[/tex]

Subtract 4.6 from 6

↦ [tex] \text{ \boxed{1.4}}[/tex]

Hope I helped!

Best regards! :D

~[tex] \text{TheAnimeGirl}[/tex]

The solution of the given expression will be; 1.4

What is an expression?

Expression in maths is defined as the collection of numbers variables and functions by using signs like addition, subtraction, multiplication, and division.

We are given that  0.5f - 2.3g where f = 12 and g = 2

Now substitute 12 in for f and 2 in for g and solve;

0.5(12)  -2.3(2)

6 - 4.6

=1.4

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The complete question is;

Evaluate the expression: 0.5f - 2.3g where f = 12 and g = 2

Jake, Utah, renting with a friend
Hourly rate: $8.75/hour
Hours worked: 40/40
Commission rate: 2.75%
Sales amount: $7500
Expenses: everything.
Y
CO20

Answers

Answer:

What is the question?

Step-by-step explanation:

I will change my  answer if you put a clear question up...

What sets of numbers are included in the real numbers

Answers

Answer:

−3, −2, −1, 0, 1, 2, 3

Let xy=6 and x2 + y2 = 23 what is the value of (x+y)??

Answers

Answer:

I'll assume that x2 = x^2 and y2 = y^2 and the answer is sqrt{35}.

Step-by-step explanation:

This problem invovles completing the square, so if I square (x+y), I get

x^2+2xy+y^2, and since xy = 6, 2xy = 12, 23+12 = 35, and your answer is sqrt{35}.

Which set of ordered pairs does not represent a function?

Group of answer choices

{(6, 0), (-9, 5), (1, -5), (0, 0)}

{(4, 6), (6, 8), (3, 2), (-6, 8)}

{(-9, -7), (-8, -7), (8, 2), (9, -5)}

{(-8, 6), (-8, 5), (-9, 4), (-5, 3)}

Answers

Answer:

the last one

Step-by-step explanation:

No points on a function can have the same x value, can you give me brainliest

Which number is closest to V6 ?

Answers

Answer:

2.44949

Step-by-step explanation:

hope this helps

Answer:

2.9

Step-by-step explanation:

What is 2/5 + 1/4+7/10

Answers

Answer:

1 7/20

Step-by-step explanation:

Answer:

27/20 or 1 7/20

Step-by-step explanation:

1) make the denominators the same

2/5 multiplied by 4 on top and bottom =8/201/4 multiply by 5 = 5/207/10 multiply by 2 = 14/20

2) add the numerators

8+5+14=27

3) the denominator stays the same

27/20

4) simplify it to 1 7/20

3) You paid $5 for a bucket of popcorn and $1.25 per candy bar. How many candy bars
can you buy to spend no more than $10?

Answers

4 dollars flat $4.00

Step-by-step explanation:

1.25x4= 5$ 5$+5$=10$

Answer:

4 candy bars

Step-by-step explanation:

you have to subtract $5 from $10, which is $5, then take the .25 from the candy bar. Add $4 candy bars to $5, $9, and then add in the .25. .25 times 4 is $1, and $9+$1 is $10

Pass necessary journal entries in the books of Narender for the month of March 2006

Answers

Please explain this question as I can't 'Pass necessary journal entries in the books of Narender for the month of March 2006'

what is a point-slope equation of the line with slope -10 that goes through the point (1,4)

Answers

Answer:

The answer is

[tex]y - 4 = - 10(x - 1)[/tex]

Step-by-step explanation:

To find an equation of a line in point slope form when given the slope and a point we use the formula

[tex]y - y_1 = m(x - x_1)[/tex]

where

m is the slope

( x1 , y1) is the point

So we have the final answer as

[tex]y - 4 = - 10(x - 1)[/tex]

Hope this helps you

what is the value of 2.5x+17+21x-25=180

Answers

Answer:

x=8

Step-by-step explanation:

2.5x+17+21x−25=180

Simplify 2.5x+17+21x−25

23.5x−8=180

Move all terms not containing x to the right side of the equation.

23.5x=188

Divide each term by 23.5 and simplify.

x=8

Hope this helps! :) Plz mark as brainliest

On a coordinate plane, the center of dilation is at (0, 0). Triangle A B C has points (negative 4, 3), (4, 4), and (1, 1). A has the coordinates (–4, 3) and B has the coordinates (4, 4). If DO,1/2(x, y) is a dilation of △ABC, what is true about the image △A'B'C'? Check all that apply.
AB is parallel to A'B'.
DO,1/2(x, y) = (one-half x, one-half y)
The distance from A' to the origin is half the distance from A to the origin.
The vertices of the image are farther from the origin than those of the pre-image.
A'B' is greater than AB.

Answers

Answer:

A, B, C

Step-by-step explanation:

It's correct, I took the activity before the quiz and got it right.

Happy to help :3

Evaluate the expression of X = 3

Answers

Answer:

x=3

Step-by-step explanation:

x=3, there is no formula or anything...

What is the capital of peru

Answers

Answer:

☆<《HOPE IT WILL HELP YOU 》>☆

Step-by-step explanation:

capital of Peru is Lima

What is the equation for the line?

Answers

Answer:it may be the first one but I can’t see the lines on the graph clearly.

Step-by-step explanation:

IM GONNA FAIL OMG HELP ME ILL GOVE YOU POINTS!!

Answers

Answer:

Step-by-step explanation:

1. yes

2. no

3. -10 and 5

4. -6

5. 3x+3

6. 3x+4

7. 14xy^2-3y+7

8. -3y-7x

9. 10x -5

Answer:

1) yes they are if y is alone its just 1y so yes their like terms.

2)no 5xy^2 is different bc the exponent

3)5x-5

4)-6

5)3x+3

6)4+4x

7)14xy^2-3y+7

8)3y-7x

9)10x-5

Step-by-step explanation:

Simplify the following expression............

PLEASE HELPPP! it’s due todayyyyy

Answers

The answer is 3k^2 m^6/ 4

You would put the first half on top of the four.

PLEASE HELP!!! The sum of 2 consecutive itegers is 294. Write an equation for the integers.

Answers

Answer:

147

Step-by-step explanation:

Divide 294 by 2

a group a friends share 3 1/2 slices of cake. each friend get half a slice of cake. how many friends shared the slices of cake.

Answers

Answer:

7

Step-by-step explanation:

3×2

6+1

7

You multiple it by 2 since it is 1/2 and not a whole piece

Answer:

7

Step-by-step explanation:

3 1/2 divided by 2 is 7

Which best describes the solution set of the compound inequality below?

Answers

Answer:

Option B. 4<=x<=6 is the solution set.

katie has $120 on her cafeteria cardka. everytime she orders a meal , $4.50 is deducted from the

Answers

Answer:

120-4.50 = 115.10

Step-by-step explanation:

She will have $115.10 left if she buys one mean

Or if your question is how many meals can she get before she runs out of money in her account- your answer is 26 meals. 4.50*26= 117 so she would have $3 left over and not enough to buy her one more meal

9+10
A.21 B.19 C.1 D.90

Answers

Answer: 19 XD

Step-by-step explanation: u add

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