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

5 x 7 = 7 x 5
What algebraic property is illustrated above?
A. commutative property of multiplication
B. associative property of multiplication
C. distributive property
D. transitive property

Answers

A. Commutative Property

Answer:

A. commutative property of multiplication

Step-by-step explanation:

The commutative property of multiplication ,

States that when two numbers are being multiplied, their order can be changed without affecting the product.

Divied. Reduce the awnser to lowest terms 4/5 divided by 16/15

Answers

Answer:

B:3/4

Step-by-step explanation:

4/5÷16/15= 4/5×15/16= 60/80.

And take 60/80 ÷ 2= 3/4

Evaluate the expression.
10.56÷3−1.9=

Answers

1.62
Pls mark brainliest

Which of the following statements best describes the effect of replacing the graph of f(x) with the graph of f(x) + 4? (1 point)

The graph shifts 4 units up.
The graph shifts 4 units down.
The graph shifts 4 units left.
The graph shifts 4 units right.

Answers

Answer:

C The graph shifts 4 units left.

Step-by-step explanation:

Answer: its A

Step-by-step explanation:

i took the test on flvs lol

How do you do this question?

Answers

Exact value:  [tex]c = \frac{-11+\sqrt{165}}{22}[/tex]

Approximate value:    c = 0.08387

Round the approximate value however you need to

==============================================

Work Shown:

Let x = 1+c

[tex]\displaystyle S = \sum_{n=2}^{\infty}(1+c)^{-n}\\\\\\\displaystyle S = \sum_{n=2}^{\infty}x^{-n}\\\\\\\displaystyle S = \sum_{n=2}^{\infty}\frac{1}{x^n}\\\\\\\displaystyle S = \frac{1}{x^2}+\frac{1}{x^3}+\frac{1}{x^4}\ldots\\\\\\[/tex]

We have an infinite geometric series here. The first term is a = 1/(x^2). The common ratio is r = 1/x.

Each new term is found by multiplying the previous term by 1/x.

Assuming -1 < r < 1 is true, the infinite geometric sum is

[tex]S = \frac{a}{1-r}\\\\\\S = \frac{1/x^2}{1-1/x}\\\\\\S = \frac{1/x^2}{x/x-1/x}\\\\\\S = \frac{1/x^2}{(x-1)/x}\\\\\\S = \frac{1}{x^2}\div\frac{x-1}{x}\\\\\\S = \frac{1}{x^2}*\frac{x}{x-1}\\\\\\S = \frac{1}{x^2-x}\\\\\\[/tex]

Plug in S = 11 and solve for x

[tex]S = \frac{1}{x^2-x}\\\\11 = \frac{1}{x^2-x}\\\\11(x^2-x) = 1\\\\11x^2-11x = 1\\\\11x^2-11x-1 = 0\\\\[/tex]

Use the quadratic formula to find the two solutions

[tex]x = \frac{11+\sqrt{165}}{22} \approx 1.08387\\\\x = \frac{11-\sqrt{165}}{22} \approx -0.08387\\\\[/tex]

Using these x values, we find that the corresponding r values are

r = 1/x = 1/(1.08387) = 0.92262

r = 1/x = 1/(-0.08387) = -11.92321

The first r value makes -1 < r < 1 true, but the second r value does not. So we will be ignoring the solution x = -0.08387

----------------------------------------------

Using the solution that corresponds to x = 1.08387, we find the value of c is

[tex]x = c+1\\\\c = x-1\\\\c = \frac{11+\sqrt{165}}{22}-1\\\\c = \frac{11+\sqrt{165}}{22}-\frac{22}{22}\\\\c = \frac{11+\sqrt{165}-22}{22}\\\\c = \frac{-11+\sqrt{165}}{22}\\\\c \approx 0.08387\\\\[/tex]

can sommeone please answer this

Answers

Answer:

x= 8

z= 116 degrees

Step-by-step explanation:

the two given angle measures are vertical angles so they are equal to each other, the equation is: 12x-32 = 11x-24

simplify this to get: x= 8

plug the value of x into either of the given equations, I will use the first one: 12(8) - 32

this means that the angle of one of them is 64

and since z and 12x-32 make a straight angle (180 degrees)

you can subtract 64 from 180 to find z

this gives you 180-64 = 116

Suppose that you borrow ​$11000 for 4 years at 6​% toward the purchase of a car. Find the monthly payments and the total interest for the loan.

Answers

Answer:

The monthly payments ≅ $258.335

The total interest of the loan ≅ $1400.095

Step-by-step explanation:

The rule of the monthly payments is

[tex]M.P=\frac{P(\frac{r}{n})}{1-(1+\frac{r}{n})^{-nt}}[/tex] , where

P is the initial amountr is the rate in decimaln is the period in a yeart is the number of years

∵ You borrow ​$11000

P = 11000

∵ It will be for 4 years

t = 4

∵ The rate is 6%

r = 6% = [tex]\frac{6}{100}[/tex] = 0.06

∵ It is a monthly payment

n = 12

→ Substitute these values in the rule above

∴ [tex]M.P=\frac{11000(\frac{0.06}{12})}{1-(1+\frac{0.06}{12})^{-12(4)}}[/tex]

→ Use your calculator to find the answer

∴ M.P = 258.3353195

The monthly payments ≅ $258.335

→ The total interest of the loan is the difference between the total

   of the monthly payments and the initial amount

The total interest of the loan = T.M.P - P

The total of the monthly payments = M.P × t × n

∴ The total of the monthly payments = 258.3353195 × 4 × 12

The total of the monthly payments = $12400.09534

∵ The initial amount P = $11000

∴ The total interest of the loan = 12400.09534 - 11000

∴ The total interest of the loan = 1400.095

The total interest of the loan ≅ $1400.095

1. Pedro bought seven dozen candy bars to give out on Halloween night. He gave each trick-or-treater two candy
bars. At the end of the night, he had 14 candy bars left. How Many Trick-or-treaters did he have

Answers

Answer:

28 or it is 42

Step-by-step explanation:

Answer:

35

Step-by-step explanation:

First, you need to know 7 dozen, which is 7*12, which equals 84. Altogether, Pedro had 84 candy bars. He had 14 candy bars left over. 84-14=70  He used 70 candy bars. He gave 2 to each trick-or-treater, so do 70/2=35. He had 35 trick-or-treaters.

not sure need help ​

Answers

Answer:

8.2

Step-by-step explanation:

It is actually 64. Good Luck

Points J, K, and L are collinear one, and JL: LK = J is located at (-3,5), K is located at (1,-10) and Lis located at (x, y). What are the values of x and y?​

Answers

9514 1404 393

Answer:

  L = (x, y) = (1/5, -7)

Step-by-step explanation:

The given relation tells you ...

  (L -J)/(K -L) = 4/1

Cross-multiplying, we have ...

  L -J = 4(K -L)

  5L = 4K +J . . . . add 4L+J

  L = (4K +J)/5

  L = (4(1, -10) +(-3, 5))/5 = (4-3, -40+5)/5

  L = (x, y) = (1/5, -7)

Which fraction is equivalent to 2/6?

Answers

Answer:3/9

Step-by-step explanation: 2/6=1/3. And 1/3x3=3/9

What is an equation of the line passes through the points (-6,2) and (6,-2)?​

Answers

Answer:

The equation for the question above is y = -1/3x.

What is the y-intercept of the function y= -1/2cos(3/2x)

Answers

Answer: (0,-1/2)

Step-by-step explanation:

Edge :-)

Answer: (0,-1/2)

Step-by-step explanation:

how do you solve
x2 - 4xy + 4y​

Answers

Answer: x2-4xy+4y=2xy-5y+2y

Step-by-step explanation:

Solve the system of equations using substitution y = 3-4x y = 3x -11

Answers

Point form is (2,-5) and equation form is x=2,y=-5 hope this helps

Drawing one card from a standard deck of cards. what is the sample space and outcome?

Answers

Answer:

sample space 2 inches outcome  1/52

Step-by-step explanation:

Which of the following statements is true concerning ABC below?

Answers

Answer:

A is the answear. so jst pick A

what’s the unit rate for 10 1/3 miles per 1/6 hour

Answers

This is a fraction equal to
30 miles ÷ 2.5 hours

We want a unit rate where
1 is in the denominator,
so we divide top and bottom by 2.5

30 miles ÷ 2.5
2.5 hours ÷ 2.5
=
12 miles
1 hour
=
12 miles
hour
= 12 miles per hour

Ryan picked 7 apples.David picked 4 times as many apples.How manyapples did he picked

Answers

Answer:

28

Step-by-step explanation:

7*4

If g(x) =5-9x and f(x) = 5+ 3x
Find g(2)
Find f(g(2))

Answers

Answer:

Step-by-step explanation:

g(2)= 5-9(2)

= -13

f(g(2))= 5+3(-13)

= -34

Answer:

g(2) = -13

f(g(2)) = -34

Explanation:

For g(2), just substitute 2 in for the x, multiply, and simplify.

g(x) = 5-9(x)

g(2) = 5-9(2) = 5-18 = -13

For f(g(2)), substitute this output in for x, multiply, and simplify.

f(x) = 5 + 3(x)

f(g(2)) = 5 + 3(g(2)) = 5 + 3(-13) = 5-39 = -34

EDGE 2020
Which trigonometric functions have the same maximum value?

y = arcsinx and y = arccosx
y = arcsinx and y = arctanx
y = arctanx and y = arcsecx
y = arccosx and y = arcsecx

Answers

Answer:

D.  y = arccosx and y = arcsecx

Step-by-step explanation:

got it right on edge :)

Answer:

The trigonometric function which have the same maximum value is:

y = arcsinx and y = cos x

Concept:

What are Inverse trigonometric functions?

Inverse trigonometric functions are represented as arcsinx, arccosx, arcsecx, and so on.

The trigonometric functions that are used to calculate an angle from any of the angle's trigonometric ratios are called inverse functions.

The formula which is used to in inverse  trigonometric equations are:

arcsinx = -arcsinx

arccosx = pi-arccosx

arctanx = -arctanx

arcsecx = pi - arcsecx

Solution:

The maximum values we obtain from the following equations are:

arcsinx = -1 to 1

arccosx = -1 to 1

arctanx = -pi/2 to pi/2

arcsecx = ∞

So the trigonometric functions which have the same maximum value is arcsinx and arccosx.

Learn more about "inverse trigonometric functions" here-

brainly.com/question/1143565

#SPJ2

Linear combination of matrices

Answers

Step-by-step explanation:

2B=

10 8 6

0 -6 6

4 12 14

6C=

24 30 36

42 0 18

6 -12 0

so 2B+6C=. 34 38 42

42 -6 24

10 0 14

Find the slope (3, 7) (-2, 7)

Answers

Answer:

(-5,0)

Step-by-step explanation:

The X coordinates go down by five = -5

The Y coordinates don't change = 0

I'm pretty sure this is right :)

Hope it helped!

Answer:

Answer Below

Step-by-step explanation:

Hope this helps! <3

(x7) - 3 = 4
What does x =
How do I solve for x
x divided by 7 - 3 = 4
how do i find out what X equals

Answers

Answer:

detailed one

Please mark as the BRAINLIEST

(ㆁωㆁ)

Which of the following should come next at the end of this row of letters? XOOOOXXOOOXXX:
a. oxxx, b. ooxx, c. xooo

Answers

Answer:

b

Step-by-step explanation:

The correct option that should come next at the end of this row of letters is OOXX.

What is a sequence?

A sequence can be defined as an arrangement of letters or numbers in a particular manner.

If you look at the given sequence it can be seen as the set of 5 letters where X is starting the set while O is ending the series. Also, the number of X will tend to increase in the next set as well while the number of O will be reduced. Therefore, the series can be seen as,

XOOOO  XXOOO  XXXOO  XXXXO

Thus, the correct option that should come next at the end of this row of letters is OOXX.

Learn more about Sequence:

https://brainly.com/question/21961097

The ratio of apples to oranges in a basket of fruit is 2:7. There are 21 oranges in the
basket. How many apples are in the basket?

Answers

Answer:

6

Step-by-step explanation:

The given ratio specifies the number of apples to be found in the basket

for a given number of oranges.

Correct response:

The number of apples in the basket are 6 apples

Methods of calculation

The given ratio of apples to oranges in the basket of fruits = 2:7

The number of oranges = 21 oranges

Required:

The number of apples in the basket.

Solution:

The given ratio can be expressed as follows;

[tex]\mathbf{\dfrac{Number \ of \ apples}{Number \ of \ oranges}} = \dfrac{2}{7} [/tex]

Which gives;

[tex]\dfrac{Number \ of \ apples}{21} = \dfrac{2}{7} [/tex]

7 × (Number of apples) = 2 × 21

[tex]Number \ of \ apples = \dfrac{2 \times 21}{7} = 6[/tex]

The number of apples in the basket = 6 apples

Learn more about ratios here:

https://brainly.com/question/2645778

Subtract the rational expressions x/x+1 - 2/x

Answers

Answer:

(2x-2)/x

Step-by-step explanation:

x/x-2/x+1

LCM is x

(x-2+x)/x

(2x-2)/x

how do i put this into factored form? (x-4)^2-9=0

Answers

Answer:

x=7,1

Step-by-step explanation:

Use Math  Way

1 2 3 4 5 6 7 8 9 10 which of the following could be the number shown on the number line a.38 b.37 c.35 d.30

Answers

Good job the correct answer isc30

In 1902, the yearly attendance at a major league baseball park was 3.4 × 105 people.
One hundred years later, the yearly attendance was 1.7 × 106 fans.
How many times greater was the attendance in 2002 than in 1902? Enter your answer in the box.

Answers

Answer:

The number of attendance is 5 times greater than in 1902.

Step-by-step explanation:

Since we have given that

Number of attendance at a major league baseball park in 1902 =

Number of attendance at a major league baseball park in 2002 =

We need to find the number of times that the attendance in 2002 is greater than in 1902.

So, number of times becomes,

Hence, the number of attendance is 5 times greater than in 1902.

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