1 Fie mulțimea de numere reale: A={5;-3,1(7);-3; 2,8; 213; -49}.
Determinați mulțimea AZ.
Determinați mulțimea A(R-Q).
Ordonați crescător elementele mulțimii A.

Answers

Answer 1

Answer:

j is the answer

Step-by-step explanation:

thats correct


Related Questions

Solve the system of equations.
y=4x
y = x^2 + 3
A. (-1, -4) and (3, 12)
B. (0, 3) and (1, 4)
C. (1, 4) and (3, 12)
D. (-3, -12) and (-1, -4)​

Answers

Answer:(1,4) and (3,12)

Step-by-step explanation

PLZ HELP DUE IN 10 MINS!HELP PLZ THANKSSSS


11. $35 volleyball: 20% discount


Answers

Answer:

the answer is 7$

Step-by-step explanation:

I used a percentage app

write an equation in slope intercept form for the line that passes through (1,-1) and is parallel to the line described by y=2x-4

PLEASE HELP:(((((

Answers

Answer:

If 2 lines are parallel, their slopes are the same, so all we need to do is plug in the given point and slope in the equation y = mx + b and solve for b.

[tex]-1 = 2(1) + b\\\\-1 = 2 + b\\\\-3 = b[/tex]

The equation of a line in slope-intercept form that goes through (1, -1) and is parallel to the line y = 2x - 4 is [tex]y = 2x - 3[/tex].

HELP ILL MARK BRAINLIEST

Answers

Answer:

5.3f

Step-by-step explanation:

***If you found this answer please press the heart button and mark me brainliest, thanks!***

A 35-foot tall pole is leading towards a building. To stop the pole from leaning further, a 48-foot long cable is secured from the top of the pole to a stake in the ground opposite of the building. If the stake is 30 feet from the pole, what angle does the cable make with the pole?



Round the answer to the nearest tenth.

Answers

9514 1404 393

Answer:

  38.5°

Step-by-step explanation:

A triangle solver can give an answer easily. The angle is 38.5°.

__

The law of cosines can be written to solve for an unknown angle C opposite side 'c' and flanked by sides 'a' and 'b'.

  C = arccos((a² +b² -c²)/(2ab))

Here, we have a=35, b=48, c=30, so the angle is ...

  C = arccos((35² +48² -30²)/(2·35·48)) = arccos(2629/3360) ≈ 38.515°

The angle the cable makes with the pole is about 38.5°.

what is the cube root of 262144

Answers

Answer:

the cube root of 262144 is 512

Answer:

64

Step-by-step explanation:

The cube root of 262144 is 64

−x + (−3) = x + 3
plz hurry

Answers

Answer:

X= -3

Step-by-step explanation:

Jeremey performs the same operations on four values of x. He records each resulting y-value in a table, as shown below. Which equation shows the operations Jermey performs on x to get to y

Answers

Answer:

Y=4x-3

Explanation: If we look 2 = 5 We can do 4(2)= 8 -3 = 5 So that the answer and 4(4)= 16-3 = 13 so these are the Y so this is the answer!

Which point is located at (2,-5)?

Answers

Answer:

B.

Hope this helps!

Write a linear expression in simplest form to represent the perimeter of the triangle.

Answers

Answer:

x +5

Step-by-step explanation:

5x-2+3x+4+2x+9

5x-2x=3x

3x-3x=x

-2+2=0

0+4=4

4-9 =5

can anyone help me ?

Answers

Answer: m∠T = 48°

ΔMAT has MA = MT

=> ΔMAT is a isosceles triangle at M

=> ∠A = ∠T = (180° - ∠M)/2

=> x + 20  = (180 - 3x)/2

⇔ 2x + 40 = 180 - 3x

⇔ 5x = 140

⇔ x = 140/5

⇔ x = 28

=> ∠A = ∠T = 28 + 20 = 48°

Step-by-step explanation:

A sports store is having a 20% off sale on skis. The original price of the ski is $560.00
The tax rate is 8.5%. What is the total cost of the skis?

Answers

Answer:

Total cost: 486.080$

Step-by-step explanation:

Original Price: 560.000$

Sale: 20%

Discount: 560.000$ * 20% = 112.000$

Discounted Price: 560.000$ - 112.000$ = 448.000$

Tax Rate: 8.5%

Tax: 448.000$ * 8.5% = 38.080$

Tax after Tax: 448.000$ + 38.080$ = 486.080$

tree+snowman+tree=17
raindeer+raindeer+snowflake=12
raindeer=snowflake
raindeer-3=snowman
then what does tree equal

Answers

Answer:

Step-by-step explanation:

Monke

Given: x + y = 10.
If x = -21, what is y?

Answers

y=31
You have to work backwards to isolate y. You would at 21 to both sides and get y = 31

Answer:

31.

Step-by-step explanation:

-21 + 31 = 10

x + y = 10

y = 31

(x+1)-6(x+1)+8 how to factorise it?

Answers

Answer:

Step-by-step explanation:

If you have written the question correctly, then you don't need to factor it. You only need to remove the brackets.

x + 1 + 6x + 6 + 8

7x + 15 is your final answer.

However, I think the question is

(x + 1)^2 + 6(x + 1) + 8

Let y = x + 1

y^2 + 6y + 8

(y + 2)(y + 4)

(x + 1 + 2 ) ( x + 1 + 4)

(x + 3)(x + 5)

Find the surface area of the 3D solid. Round to one decimal place.

Answers

Answer:

172.5

Step-by-step explanation:

The formula for the surface area of a right circular cone (the following shape) is πr( r + √h^2 + r^2). Since the radius (r) is already given (3) and the height (h) is already given (15), you just replace each r with 3 and h with 15. After solving this out, you should get 172.45, which rounds to 172.5 to the first decimal place

Suppose a cylinder has a diameter of 18 feet and a height of h feet. Which equation can be used to find V, the volume of the cylinder in cubic feet?

Answers

Answer:

Volume of a cylinder, V = πr^2h

but r= d/2

therefore, Vol = π(d/2)^2h

from the parameters given,

Vol = π(18/2)^2h

=81πh

3x+1 = 27
answer choices: a) -1/3
b) -6
C) -2/3
d) -3/2

Answers

none of those are correct. x= 8 and 2/3

Use the coordinates J(7, 8), K(1, 2) and L(5, 2) for △JKL.

The centroid for △JKL is at point M. What is JM rounded to the nearest tenth?

Answers

prolly D

..............................

The distance between the point JM will be 4.81 units.

What is the centroid of the triangle?

In science and math, the centroid of a planar figure or firm figure, also known as the point of intersection or center of the figure, is the mean absolute position of all of the other points on the subject's surface.

The centroid of the triangle is given as,

(x, y) = [(x₁ + x₂ + x₃) / 3, (y₁ + y₂ + y₃) / 3]

Use the coordinates J(7, 8), K(1, 2) and L(5, 2) for △JKL. Then the centroid for △JKL is at point M is given as,

(x, y) = [(7 + 1 + 5) / 3, (8 + 2 + 2) / 3]

(x, y) = (13/3, 12/3)

(x, y) = (13/3, 4)

Then the distance between the point JM is calculated as,

D² = (13/3 - 7)² + (4 - 8)²

D² = 7.1111 + 16

D² = 23.11

D = √23.11

D = 4.81 units

The distance between the point JM will be 4.81 units.

More about the centroid of the triangle link is given below.

https://brainly.com/question/10708357

#SPJ2

SOMEBODY PLEASE HELP ASAP!!! WILL GIVE BRAINLIEST


In parallelogram KLMN, KN = 10, MN = 7 and mK = 50°



Find the measures of the remaining angles of parallelogram KLMN. Justify each of the measures with a theorem.
Find the measures of the remaining side lengths of parallelogram KLMN. Justify each of the measures with a theorem.

Answers

Answer:

a- 130, 130, and 50

b- 7 and 10

Answer:

a- 130, 130, and 50

b- 7 and 10

Step-by-step explanation:

(11x + 8) + (8x + 12) =27

Answers

Answer:

11x + 8 +8x +12 =27  (drop the parenthesis, there's no actual need for them)

19x +20 =27 (i combined like terms and then subtracted 20 from both sides)

19x = 7  (divide both sides by 19 to get x alone)

x= 7/19 or 0.36842105 (the answer)

Step-by-step explanation:

Oh wow that person that answered already

NEEDING HELP ASAP!
*CLICK ON PHOTO*
!SHOW ALL WORK!

Answers

-6x-2y=42

x-y=-15

Multiply x-y=-15 by 6 ( eliminate the x first)

6(x-y)=6(-15)

(6)(x)=6x

(6)(-y)=-6y

6(-15)=-90

-6x-2y=42

6x-6y=-90

eliminate x the systems of equations by subtracting

-6x+6x-2y+-6y=42-90

-2y-6y=42-90

-8y=-48

divide both sides by -8 to get y by itself

-8y/-8=-48/8

y=6

Find x by substitution method

use y=6 into one of the system of equations

x-y=-15

x-6=-15

move -6 to the other side

sign changes from -6 to +6

x-6+6=-15+6

x=-15+6

x=-9

answer:

(-9,6)

For any rectangle ABCD, determine whether each statement is always, sometimes, or never true. ∠a≅∠b

Answers

Answer:

always

Step-by-step explanation:

no matter what the angles of a rectangle will be 90 degrees so the answer is always

Answer:

Step-by-step explanation:

Consecutive angles are equal only when dealing with a square or a rectangle. All other 4 sided figures do not have this property.

So the answer is sometimes.

identify the slope and write the equation of the line .

Answers

Answer:

y=-2x+5; slope is -2

Step-by-step explanation:

slope is rise/run. we can see it rises 2 and goes left one which would give us rise/run=2/-1=-2. that is our slope.

using y=mx+b to write the equation, m is slope and b is the y-int.. we can see that the y-int. is (0,5). we can plug 5 into b.

plugging b and m in we can get the equation: y=-2x+5

x = 4x + 3 "explain your thinking"

Answers

Answer:

x equals to -1

Step-by-step explanation:

x-4x :3

-3x : 3

so x: -1

an equivalent ratio for 5:10

Answers

Answer:

Here u go! :)

Step-by-step explanation:

10:20, 15:25, 20:30 etc..

Hope this helps you! xx

Answer:

10:20, 15:30, 20:40, 25:50

Step-by-step explanation:

Which calculation will give the best estimate of the result of 23 x 4.8?
0 20 0.5
0 30 x 0.5
O 20 x 5
O 30 x 5

Answers

Answer:

20x5

Step-by-step explanation:

Write the sentence as an inequality.

Three times a number w is less than 18.

Answers

Answer:

w<6

Step-by-step explanation:

3w/3 <18/3

You divide that and get w<6.

Use the information to answer the question.
Liz types at a rate of 25 words per minute. The graph shows the number of words typed over time by 4 other students.
Which student types at the same unit rate of words per minute as Liz?
please help!

Answers

Britt:

This is because if she types 25 words in one minute then that means she can type 50 words in 2 minutes (just multiply by 2). The only person on the graph who can type 50 words in 2 minutes is Britt.

Hope this helps! Any questions let me know :)

If 15 ounces of candy cost $3.75 what is the price per unit

Answers

Answer:

$0.25 per ounce

Step-by-step explanation:

3.75 divided by 15 is 0.25

Answer:

0.25 per ounce

Step-by-step explanation:

3.75 divided by 15 is 0.25

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