Cho hai tập hợp A = {0,1,4,7,8,9}, B = {1,2,3,4,6,7,8}.Tập hợp B\A bằng:

A. {2,3,6} B. {0,8}

C. {1,4,7,9} D. {1,3,7,9}

Answers

Answer 1

Đáp án

A. {2,3,6}

Lời giải:

B\A là tập hợp các phần tử B có mà A không có. => B\A = {2,3,6}

Answer 2

Answer:

.

Step-by-step explanation:


Related Questions

The volume of a cube is 751cm.3
Work out the length of its side rounded to 1 DP.

Answers

Answer:

9.1 cm

Step-by-step explanation:

v = s^3

751 = s^3

Take the cube root of both sides

9.0896392166 = s

Rounded

s = 9.1

Which function has two distinct real zeros?
A.) F(x)=2x+2
B.) F(x)=(x-2)²
C.) F(x)=x³+2
D.) F(x)=lxl-2

Answers

Answer:

d

Step-by-step explanation:

trust me

Answer:

From its name, the zeros of a function are the values of x where f(x) is equal to zero. ... The function g(x) = x2 – 4 has two zeros: x = -4 and x = 4.

Step-by-step explanation:

Hope this helps :D                

Solve the following equation
x²-10x+25=0

Answers

Answer:

X=5

Step-by-step explanation:

You want to factor the left side of the equation

(X-5)(x-5)=0

Set factors that will equal to 0

X-5=0

X=5 is the answer

Adam went on a shopping trip to Somerville. He purchased a set of dishes originally priced at
$390 but discounted 60%. If sales tax in Somerville is 8%, what was the total cost?
Submit

Answers

Answer:187.2

Step-by-step explanation:

Actual price $390

After 60% discount price will be 156

And Sales tax is 8% . Then the price of sales tax is $31.2.

156+31.2= $187.2

Answer:

168.48

Step-by-step explanation:

IXL

13 = 1/6y +2x plz help

Answers

Answer:

in standard form - y+12x=78

in slope intercept form - y=-12x+78

Step-by-step explanation:

standard form

13=1/6y+2x

multiply both sides by 6

78=y+12x

y+12x=78

slope intercept

13=1/6y+2x

subtract 1/6y from both sides

13-1/6y=2x

subtract 13 from both sides

-1/6y=2x-13

change the signs on both sides of the equation

1/6y=-2x+13

divide both sides by 1/6

y=-12x+78

Solve the system of equations by elimination:4p + 4q = 44p - 4q = 28

Answers

Answer:

p =9

q =2

Step-by-step explanation:

4p + 4q = 44  -----------(I)

4p - 4q = 28  -------------(II)

Add the equations and thus q will be eliminated and we can find the value of p.

(I)   4p + 4q = 44

(II)  4p -4q   = 28   {Now add}

     8p          = 72

       p = 72/8

p= 9

Plugin p =  9 in equation (I)

4*9 + 4q =44

36 + 4q = 44

     4q = 44 - 36

     4q = 8

        q = 8/4

q = 2

can anyone help please im havinga prblem in this thank u

Answers

Yeah Bro ! I'm here ,

.Given that ;-

slope ( m) = 3/2

y-intercept (c) = -3

Now ,

we know the equation of straight line in slope intercept form;

I.e

y = mx+c

Just substitute m and c 's value , we get

y= (3/2)x +( -3)

or,. y = 3x/2 - 3

[tex]y = \frac{3x}{2} - 3 \\ y = \frac{3x - 6}{2} \\ 2y = 3x - 6 \\ 3x - 2y = 6\\ [/tex]

,

Hence 3x-2y = .6

3x-2y-6 =0 is the required equation.

A student averaged 45 miles per hour on a trip. What was the students speed in feet per second? with solutions please​

Answers

Answer:

[tex]66 \: ft/sec[/tex]

Step-by-step explanation:

[tex] = \frac{45 \: mi}{hr} \times \frac{5280 \: ft}{1 \: mi} \times \frac{1 \: hr}{3600 \: s} [/tex]

[tex] = 45 \frac{5280}{1} \times \frac{1}{3600}ft/sec \\ [/tex]

[tex] =66 \: ft/sec[/tex]

How many times does the line y=-1 touch the graph? (Ensure to draw your line on the graph)

Answers

Answer:

The answer is 2 times

Step-by-step explanation:

Well, the line y equals to negative 1 is a horizontal line that crosses through the y axis.

So, if we were to draw that line in how many times is that line intersecting or coming into contact with our graph well it's happening in these two places right here (shown in attached photo) so that would intersect two times.

Thus, The answer is 2 times

-TheUnknownScientist 72

Poppy gives one half of a cake to her big brother and the other half to her three friends who share it equally. What fraction of the cake does each friend get?

Please help!! ​

Answers

Answer:

1/12

Step-by-step explanation:

This is the link
......................

Answers

Answer:

-1/2  would be your answer :)

Answer:

The answer is 2

Step-by-step explanation:

the answer would be 2 because the slope moved from (-2,0), to (0, 2). So it moved 2 spaces/grid places up.

Through (-3,-5), Perpendicular to y = -x-5 in point slope and slope intercept form

Answers

Step-by-step explanation:

I really hope this helps :)

A faucet can fill a bathtub in 6 minutes. the drain can empty the tub in 10 minutes. If both the faucets and the drain are open at the same time, this situation is represented by this expression, where t is the number of minutes it will take to completely fill the bathtub.

[tex] \frac{t}{6} - \frac{t}{10} [/tex]
which expression can also represent this situation?

Answers

Answer:

4t/15

Step-by-step explanation:

Please trust me

HELP ASAP!!!!
I need help finding slopes (100points and brainlyest if it lets me)

Answers

Answer:

Step-by-step explanation:

to find slope, m is slope

m=(y2-y1)/(x2-x1)

let’s use one of the coordinates here:

(50,150) and (100,150)

m= (150-150)/ (100-50)

this is the slope

if this is incorrect please notify me! Thankyou :3 have a great evening :D

Answer:

The slope is 0 and the equation for this graph would be y=150

Step-by-step explanation:

if 2/5 of pizza costs $1.00 how much will the whole pizza cost

Answers

Answer:

2/5

Step-by-step explanation:

What equation is graphed in this figure?
A: y−3=32(x+1)

B: y+1=−23(x−3)

C: y−4=−23(x+2)

D: y+2=−32(x−2)

Answers

The answer is B!! Have a good day

The Drawing below represents a scale drawing of a room, when 1 inch = 16 feet

what is the approximate area of the store in square feet ​

Answers

I’ll help you out, but there is no drawing to go off of.

which is lower:-500 or-1000 feet?

Answers

Answer:

-1000

Step-by-step explanation:

if you look on the number line

Answer:

-1000 feet

Step-by-step explanation:

-1000 feet is lower than -500 since both numbers are negative and -500 is close to 0 than -1000

How to find the Focus directrix and the lanth of the latus rectum of the equation below

Answers

I don’t know tell that person to figure it out.

3. Consider the iterative rules you wrote in Problem 2. (a) Explain why the rules are functions. (b) Your friend says that because the rules are functions, they can be graphed and must have y-intercepts. How would you respond to your friend’s comment? (c) Your friend uses your rules to determine the outputs when the inputs are 18.5. Explain why her outputs are meaningless in this situation. What would you tell her about the inputs she can use? Answer:

Answers

The inputs which are required mention below in descriptive.

What is Function?

The functions are the special types of relations. A function in math is visualized as a rule, which gives a unique output for every input x. Mapping or transformation is used to denote a function in math.

(a) The rules are functions because each input has only one output. You can test this out, it's true.

(b) So we did have to find the "y-intercept" earlier. But you have to look at the domain. There won't be any amount paid on Week 0, payment starts at Week 1. So you would have to respond that yes, they can be graphed, but there's no y-intercept; the graph starts at week 1. Additionally, there are only data points at the integer values of x. Look at part c.

(c) The outputs are meaningless because you're counting the time by weeks. There won't be any amount paid in the middle of the week, so she can only use integer inputs.

Learn more about function from:

https://brainly.com/question/12431044

#SPJ1

(7x^{5} -4x^{4} +2x^{2} -3)-(6x^{4} +9x^{3} -7x^{2} +12)

Answers

7x^5 -10x^4 -9x^3 + 9x^2 -15

la solucion de un triangulo rectangulo tiene uno de sus lados de 5cm otro de sus lados 7cm y el lado de abajo de 4cm

Answers

Answer:

thx sa points

Step-by-step explanation:


Name the
alternate
interior angle
with angle 5.

Answers

Answer:  B) angle 4

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

Explanation:

We can think of lines L and M as sort of train tracks. Inside the train tracks we have the interior angles of: 3, 4, 5, 6

Angles 3 and 6 are one pair of alternate interior angles. They are on alternate sides of the transversal line N.

The other pair of alternate interior angles are 4 and 5

Alternate interior angles are only congruent when L and M are parallel.

Answer:

Angle 4

Step-by-step explanation:

I believe it's on the opposite side of the transversal so yee

Marla filled up her car's gas tank and then went on a trip. After she drove 329 miles, she filled her tank with 14 gallons of gas. If she drove the same number of miles on each gallon of gas, how many miles per gallon did she drive?

Answers

Answer:

23 1/2 miles per gallon

Step-by-step explanation:

We start with dividing 329 miles with 14 gallons because it asks to find the number of miles on each gallon of gas -

          Miles

-----------------------------     =

Each gallon of gas

329 ÷ 14 = 23 1/2 miles per gallon

Solve the math problem

Only solve 3 and 4

Answers

Answer:

nothing is being showed

Step-by-step explanation:

Answer:

Step-by-step explanation:

3) Cost of o balloons = 0

4) It represents a proportional relation ship.

Reason

[tex]\dfrac{25.50}{3}=\dfrac{42.50}{5}=\dfrac{59.50}{7}=\dfrac{76.50}{9}=8.5[/tex]

i need help fr!! ignore the writing lol

Answers

Answer:

-40

Step-by-step explanation:

Inputs are the x values and outputs are the y values. To find the output of a function, substitute the chosen value for x.

For instance, when the input is 5:

[tex]-7(5)-5\\-35-5\\-40[/tex]

Then, the output is -40.

given g(x)=1/2x+7 find g^-1(x)

Answers

I’m not sure about this question

Help? I need question 1-8 answers .

Answers

1) These angles are actually equal so set the equation to…
58=5x-2
60=5x
X=12


2) These angles are also equal to each other
16x+22=134
16x=112
X=7


3) These angles are equal too
7x-1=125
7x=126
X=18


4) These angles are supplementary so they add to 180 degrees
9x+2+133=180
9x+135=180
9x=45
X=5


5) These angles are equal as well
8x-77=3x+38
5x-77=38
5x=115
X=23


6) These angles are also equal
11x-47=6x-2
5x-47=-2
5x=45
X=9


7) these also sum to 180
13x-21+5x+75=180
18x+54=180
18x=126
X=7


8) These angles add to 180 as well
9x-33+5x+3=180
14x-30=180
14x=210
X=15

In conclusion, just know how to solve simple one variable equation and know which angles are congruent and supplementary and this will be easy.

Answer:

Hi please resend the question so i can help u!

Step-by-step explanation:

Apples are on sale at the grocery store at a price of 8 apples for $4.00. Maggie buys 12 apples. If she is charged the sale price for apples, how much will Maggie pay?

Answers

Answer:

$6

Step-by-step explanation:

James can read 520 words in 2 minutes and Luke can read 960 in 5 at what rates are james and Luke able to read?

Answers

James 260 words / 1 min . Luke 190 words / 1 min .
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