which relation is a function?

An algebraic expression for the given statement is 20-x.

The given statement is the difference of 20 and x.

We need to write an algebraic expression for the given statement.

An algebraic expression (or) a variable expression is a combination of terms by the operations such as addition, subtraction, multiplication, division, etc.

Now, the difference of 20 and x =20-x

Therefore, an algebraic expression for the given statement is 20-x.

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Answer:

96

Step-by-step explanation:

A=6a²=6·4²=96

Answer:

2261.94671

Step-by-step explanation:

Answer:

A≈2261.95

Step-by-step explanation:

[tex]A=2\pi \frac{d}{2} h+2\pi( \frac{d}{2}) ^2=2[/tex] ·[tex]\pi[/tex]·[tex]\frac{24}{2}[/tex]·[tex]18+2[/tex]· =[tex]2261.94671[/tex]

Answer:

15 teaspoons

Explanation:

The ratio of soft drink to sugar is 12:10, when simplified it is 6:5 (divide by 2)

Since there's 18 oz of soft drink, we multiply 6 by 3, and because it's a ratio we must also multiply 5 by 3, which gets us 15.

18:15

Answer: Roughly Symmetrical

Step-by-step explanation: There's no super easy way to explain why other than learning with experience but if you look at about the center of the graph, there are two peaks, and each side of the graph if split at about 68 which is the center, has 7 points each. This in conjunction with the shape and relatively normal spread makes it roughly symmetrical, not quire symmetrical but getting there.

Answer:

1018.600 I think SORRY IF I'M WRONG!!!

Step-by-step explanation:

Answer:

1018.620 and u r correct my guy

Answer:

A = 29/51   B = 22/51

Step-by-step explanation:

(E) =  number of favorable outcomes/ total number of possible outcomes

- number of possible outcomes= 51

- number of favorable outcomes= 29

therefore, P(E) = 29/51

- number of possible outcomes= 51

- number of favourable outcomes = 51 - 29 = 22

therefore, P(E)= 22/51

Answer:

y = 2x2 - 10x + 12

Step-by-step explanation:

The quadratic function represented by the graph is y= 2x² - 10x + 12.

The task's requirements dictate that the quadratic function represented by the graph be identified.

As the roots of the quadratic function are p and q, the quadratic function can be described as y = a (x - p) (x - q), where a is a constant.

As a result, since the roots are 2 and 3, we obtain;

y = a (x - 2) (x -3) (x -3)

So, we must substitute the values defined by the provided point, (1, 4), as shown below in order to find the value of the constant, a.

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

4 = a(-1) (-2)

4 = 2a

a = 2.

So, the required equation is y = 2 (x - 2) (x - 3).

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Answer:

[tex]x = \sqrt{6} [/tex]

Step-by-step explanation:

2(x^2 - 6) = - 3x^2 + 18

2x^2 - 12 = - 3x^2 + 18

5x^2 - 12 = 18

5x^2 = 30

x^2 = 6

x = square root (6)

Answer:

5 cases

Step-by-step explanation:

Since 12 does not go into 50, you need to buy a whole extra case.

12*4= 48, which is not enough for 50 units

The given equation is derivable from the system of equations.

Response:

Given:

The system of equation is presented as follows;

[tex]\begin{cases} \mathbf{10 \cdot x - 3 \cdot y} = 29...(1) & \text{ } \\ \mathbf{-3 \cdot x + 10 \cdot y} = 55...(2) & \text{ } \end{cases}\\[/tex]

Therefore, by subtracting equation (2) from equation (1), we have;

(10·x - 3·y) - (-3·x + 10·y) = 29 - 55 by subtracting equivalent expressions

13·x - 13·y = 29 - 55 = -26

13·x - 13·y = -26, which is the given equation

Given that the operation performed on equation (1) and (2) is the

subtraction of equivalent expressions, we have, that the solution for the

given equation, 13·x - 13·y = -26 is the same as the solution for given

system of equations.

The reason why 13·x - 13·y = -26 shares a solution with the system of equations based from the given options in a similar question is therefore;

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Answer:

They both go to equivalent

Step-by-step explanation:

Answer:

lazyyyy

Step-by-step explanation:

Answer: Cathy walked her dog 28810 miles

Step-by-step explanation:

215*134=28810

Answer:

Cathy walked her dog 28810 miles

Step-by-step explanation:

Answer:

not sure please elaborate your question more.

Step-by-step explanation:

Answer:

2.04

Step-by-step explanation:

ez

Answer:

(− ∞ , 1 /3 )  ∪  ( 5 , ∞ )

Step-by-step explanation:

Answer:

1(79 x 36)

Step-by-step explanation:

Answer: 17160

Step-by-step explanation:

first there are 13 options

then there are 13 - 1 that was chosen

then there are 13 - 2 that were chosen

then there are 13 - 3 that were chosen

so that's 13 options, then 12 options, then 11 options, and then 10 options

and in order to figure out all of the possibilties we mutiply the options so

13*12*11*10 = 17160

little further explaining of why this works:

we have a set of letters (3 in a set)

A B C

what are the possible combinations?

AB

AC

BC

BA

CA

CB

the answer is 6 which is also 3 * 2 * 1 = 6

9514 1404 393

Answer:

  perpendicular: undefined

  parallel: zero

Step-by-step explanation:

The line y = -6 is a horizontal line. Between any two points on the line, the difference in y-values is zero, and the difference in x-values is non-zero. The slope of this horizontal line is the ratio of these differences:

  slope = 0/(non-zero) = 0

Any parallel line will have the same slope. The slope of a parallel line is 0.

__

A line perpendicular to a horizontal line is a vertical line. It will have the equation x = constant. Between any two points on the line, the difference in y-values is non-zero, and the difference in x-values is zero. The slope of this vertical line is the ratio of these differences:

  slope = (non-zero)/0 = undefined

The slope of the perpendicular line is undefined.

Answer:

1. [tex]8x\sqrt{yz\\}[/tex]   2.[tex]8xy\sqrt{xz}[/tex]   3.[tex]4x^{2}yz\sqrt{y}[/tex]     4.[tex]7yz\sqrt{xz}[/tex]

Step-by-step explanation:

Answer:

Total amount:

Total amount:

As we see the second method is a better choice

Answer:

SHERRIE

- Princible P= 200

- Interest rate R= 4% or 0.04

-  Number of compounds N= 12

- Time T= 2

HARRISON 

- Princible P= 200

- Interest rate R= 2% or 0.02

- Number of compounds N= 4

-  Time T= 2

Formula: A= P(1+r/n)^nt

Now plug in values for each person: 

200(1+0.02/4)^4*2= 208.14

200(1+0.04/12)^12*2= 216.63

And as you can see, the second method (Sherrie's) is the best choice.

Step-by-step explanation:

5 shaded sections are 20% of 25 equal size sections.

Given that, you divide a bar diagram into 25 equal-size sections and shade 5 sections.

Percentage is defined as a given part or amount in every hundred. It is a fraction with 100 as the denominator and is represented by the symbol "%".

Now, 5/25 × 100

= 0.2 × 100

= 20%

Therefore, 5 shaded sections are 20% of 25 equal size sections.

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Answer:

210

Step-by-step explanation:

2.5 times 84 = 210

Answer:

9:30

Step-by-step explanation:

9:30 = 3:10

If we put a ratio into a fraction for better visual representation, we will see that 3:10 turns in 3/10. If we multiply both the numerator and denominator by 3, we will get 9/30. You can divide 3 from both sides of 9/30 and it will go back to 3/10.

tl:dr Multiply both sides of a ratio to get the equivalent ratio.

Answer:

6 dogs are there who ate the biscuits