cho A={0;2;4;6}. tập A có bao nhiêu tập con có 2 phần tử

Answers

Answer 1

Answer:

6

Step-by-step explanation:

{0; 2}

{0; 4}

{0; 6}

{2; 4}

{2; 6}

{4; 6}


Related Questions

The product of a number and 9,
increased by 4, is 58. Find the
nurnber.

Answers

The answer is 6
58-4 is 54 and 54 divided by 9 is 6
So, the product of 6 and 9 (54) increased by 4 (54+4) is 58

when y is equal 3 and x is equal 7 what is y when x equal 63​

Answers

Answer:

7y x57xhfdghff

Step-by-step explanation:

hghhhhhf

The graph shows the amount of money you and a friend are saving for a camping trip.

You: 4 weeks 60 dollars. 8 weeks 120 dollars.
Friend: 2 weeks 40 dollars. 5 weeks 100 dollars

B) Find the slope of each line.

C) How much more money does your friend save each week than you?

D) The camping trip costs $165. How long well it take you to save enough money

Answers

slope for me is 15 dollars per week. slope for my friend is 20 dollars per week. my friend saves 5 dollars more per week. it takes me 11 weeks to save enough money for the gay camping trip

What is -2d-2 < 3d+8

Answers

Answer:

d > -2

Step-by-step explanation:

-2d-2 < 3d+8

3d+8 > -2d-2

3d + 2d > -2 -8

5d > -10

d > -2

Feel free to mark this as brainliest! :D

what is 6 ( 4 - x) + 2 =
3

Answers

Answer:

x= 23/6

x=3.83

x= 3 5/6

all of those are the answers and are equal

hope this helped

can I plz be brainiest

is the relashionship between the number of slices of salami in a sandwhich and the number of calories proportional? why?

Answers

Answer:

The number of slices of salami and the number of calories are not proportional. Step-by-step explanation: we know that. A relationship between two variables, x, and y, represent a proportional variation if it can be expressed in the form or . In a proportional relationship the constant of proportionality k is equal to the slope m of the line and the line passes through the origin

Step-by-step explanation:

Again I need help thank you :)

Answers

Answer: y = -7 and the slope is zero.

Explanation:
A line parallel to the y-axis would have the same slope, and the slope of the y-axis is zero.
If the slope is zero and the line passes through the point (-10,-7), the y-intercept for the line is -7.

y = mx + b
y = 0x - 7
(zero x is just zero, so:)
y = -7

There are 20 black, 15 white, 12 green, 12 red, 9 blue, and 2 yellow candies in a box. How many candies should you take (without looking at them) to be sure that you have at least 3 candies the same color?

Answers

Answer:

All of them lol.

Step-by-step explanation:

If you take all of them, you have a 100% chance at getting at LEAST 3 candies of the same color.

pls help me, thankyuu❤️​

Answers

Answer:

1. 3, 12, 48, 192, 768               Ratio: x4

2. 8, 16, 32, 64, 128                Ratio: x2

3. 120, 60, 30, 15, 7.5             Ratio: ÷2

4. 5, 10, 20, 40, 80, 160          Ratio: x2

5.  1.3?, 4, 12, 36, 108, 324      Ratio: x3

Hope this helps!

I'm not sure about the first one on question 5 though.

Cornelius Shultz’s annual salary is $29,800. He is paid monthly. His personal exemptions total $4,000. How much does his employer deduct from each of Shultz’s paychecks for state income tax of 4 percent?

Answers

Answer:

86

Step-by-step explanation:

I will mark brainliest when I’m able to !!

Answers

Answer:

It should be b

Step-by-step explanation:

I took this test

Answer: The answer would be A.

Step-by-step explanation:

The answer is a because when you do square root 60 on a caculator the answer is 4. So the answer would be A.

2 × 4^5 + 10 ( 5 × 2 ) - 10 ÷ 2 = ​

Answers

Answer:

2143

Step-by-step explanation:

2 × 4^5 + 10 (5 × 2) -10 ÷ 2

= 2 × 4^5 + 10 × 10 (-10) ÷ 2

= 2 × 4^5 + 10 × 10 - 10 ÷ 2

= 2 × 4^5 + 10 × 10 - 5

= 2048 + 100 - 5

= 2148 - 5

= 2143

Answer:

Your answer is 2143

Step-by-step explanation:

2 × 4^5 + 10 × 10 - 10 ÷ 2

*How i got the -5 is becuase 10/2 = 5

= 2 × 4^5 + 10 × 10 - 5

* How i go the 100 is becuase 10 *10 = 100

2048 + 100 - 5

How i go 2148 is becuase 2048+100 = 2148

2148 - 5

Answer = 2143

A parking lot has 27 spaces total. if 9 of the spaces have cars in them, what is the ratio empty spaces to filled spaces?​

Answers

Answer:

2 : 1

Step-by-step explanation:

27 total

9 filled

27 - 9 = 18 empty

18 : 9

2 : 1

4 digit number that is not divisoble by 2,3,5 or 10

Answers

Answer:

isiiqywyysyu the first one the first time in a even if it well y eh I just saw your message garako thiya na na hey I k h I just got home from a ko xa ki xaina the morning to get well soon dd ko we

Step-by-step explanation:

eheuieiriieu to be ei ufuirijwjjeuuwuw to jnndhejfjit

What are the correct answers to this geometry question?

Answers

Answer:

Ti = 5

AT = 6

Kt = 10

Ai = 11

ke = 19

ae = 15

Step-by-step explanation:


Today is Ivanna's birthday. She is 6 years old. How old is Ivanna in months?

Answers

Answer:

She is 72 months old.

Step-by-step explanation:

Answer: 72 months

Step-by-step explanation: 12 x 6 = 12

what is (-1/8c+16)-(3/8+3c) simplified

Answers

Answer:

Step-by-step explanation:

you can go to (math) it usually helps me a lot with stuff and maths x hope u find ur answer(way).

check the things in brackets that how the site its called.

if ∠1 and ∠2 are complementary angles, ∠1 and ∠3 are vertical angles, and m∠2 = 36°, find m∠3.

Answers

Answer:

28>

Step-by-step explanation:

what is
16+(48/8)
and please do not give me a fraction i want a whole number for this answer, thank you

Answers

Answer: If the entry is a fraction only, leave the whole number field blank. This is the greater of the two entries. After determining which entry is greater, the compare fractions calculator will show its work and give a detailed explanation of each step it took to arrive at the answer.

Step-by-step explanation:

the answer 22

The answer is 22, because if you divide 48 by 8 you will get 6. ( You have to solve what’s in the brackets first!)
Then after you get 6, you will do 16+6 which equals to 22

On Sunday, a local hamburger shop sold a combined total of 536 hamburgers and cheeseburgers. The number of cheeseburgers solid was three times the
number of hamburgers sold. How many hamburgers were sold on Sunday?
Il hamburgers

Answers

Answer:

134 hamburgers sold on Sunday

Step-by-step explanation:

x+3x=536

4x=536

4x/4=x, 536/4=134

x=134

I don't know this question will u help

Answers

Answer:

Step-by-step explanation:

It is one

Answer:

f(x)=(2/3)x+(4/3)

Step-by-step explanation:

find gradient,m

(4-2)/4-1)=2/3

m=2/3

find y intercept

(4-c)/(4-0)

c=4/3

y=mx+c

f(x)=(2x3)x+(4/3)

Translate this sentence into an equation. 39 is the product of Hector's height and 3. Use the variable h to represent Hector's height.

Answers

so basically, 39=H+3 because 39 is the product = H (hectors height) and (+) 3

classify -0.25 as rational or irrational. explain.

Answers

I think it is ripple effect

Answer:

Rational

Step-by-step explanation:

Rational numbers include fractions and decimals that end or have a pattern. Irrational numbers, however, do not end and have an arbitrary pattern. -0.25 is rational because it is a terminating decimal which means it ends.

Examples of irrational numbers include:

√2 , -√101 , π (pi)

Examples of rational numbers include:

-0.89 , √16 , 1/3

i hope this helps :)

Which of these tables is a non linear function

Answers

Answer:

C

Step-by-step explanation:

Because on all the graphs all the numbers on the Y side are essentially adding one.  With the 3rd graph, it goes from 17 to 19, skipping 18.  Therefore it is not linear.  

Find the hypotenuse of a right triangle given the legs 10 cm and 24 cm.

A. 26 cm

B. 21.8 cm

C. 6.4 cm

D. 18 cm

Answers

Step-by-step explanation:

you take the square of ten and add to the square of twenty four then find the square root of the answer

Answer:

26 cm

Step-by-step explanation:

to be honest took the test 3 times and never got this one right it could very well be 21.8 so if it does happen to be 21.8 please someone correct me

Plz help ASAP <3

james draws a line that has an x-intercept of "-5" and y-intercept of 3 on a piece of graph paper. what is the equation of the line?

A) y= 5/3 x + 3

B) y=5/3 x - 5

C) y=3/5 x - 5

D) y= 3/5 x + 3

Answers

Answer:

the answer is D

Step-by-step explanation:

yeah-ya..... right?

The equation of line will be;

⇒ y = - 3/5x + 3

What is Equation of line?

The equation of line in point-slope form passing through the points

(x₁ , y₁) and (x₂, y₂) with slope m is defined as;

⇒ y - y₁ = m (x - x₁)

Where, m = (y₂ - y₁) / (x₂ - x₁)

Given that;

James draws a line that has an x-intercept of "-5" and y-intercept of 3 on a piece of graph paper.

Now,

Since, James draws a line that has an x-intercept of "-5" and y-intercept of 3 on a piece of graph paper.

Hence, The slope of the line = - 3/5

And, The y - intercept = 3

Thus, The equation of line will be;

⇒ y = - 3/5x + 3

Learn more about the equation of line visit:

https://brainly.com/question/18831322

#SPJ2

If <5 and <6 are complementary angles, and m<6=6", find m<5.

Answers

Answer:

∠ 5 = 84°

Step-by-step explanation:

Complementary angles sum to 90° , then

∠ 5 + ∠ 6 = 90° , that is

∠ 5 + 6° = 90° ( subtract 6° from both sides )

∠ 5 = 84°

Find the next 3 terms of the sequence below:

Answers

The next 3 terms are 17, 21, 25

Help please!!

A student has an allowance of $20 each week. He wants to buy lunch at school for $3.50 every day, Monday - Friday. Does the student have enough money to buy lunch?

Why or why not?

Answers

Answer:

Yes

Step-by-step explanation:

Did the math on my calculator on my phone

Answer:

Yes

Step-by-step explanation:

The cost for each meal is 3.50 and there are five days so you would multiply 3.50 by 5 which equals 17.5. So it would cost the students 17.50 each week for the lunch, leaving them 2.50

The graph shows a scuba diver's ascent over time. Use the graph to write an equation in slope-intercept
form that represents the diver's depth over time.

Answers

Answer:1/2 (1 over 2)

Step-by-step explanation:

Answer:

get it from some else pllease

Step-by-step explanation:

type this in

The graph shows a scuba diver's ascent over time. Use the graph to write an equation in slope-intercept form that represents the diver's depth over time.

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