Mathematics High School

Which relation is a function?


{(1, −1), (−2, 2), (−1, 2), (1, −2)}

{(1, 2), (2, 3), (3, 2), (2, 1)}​

{(1, 4), (2, 3), (3, 2), (4, 1)}

{(4, 2), (3, 3), (2, 4), (3, 2)}

Answers

Answer 1

Answer:

The answer to this question is B

Step-by-step explanation:

just believe

Related Questions

identify the slope of a line with run -16 and rise 4

Answers

Answer:

The slope is  

11 − 2  or  − 5.5 .

Step-by-step explanation:

To find the slope given two points, we use the formula  

rise

run

, or  

y

2

−

y

1

x

2

−

x

1

.

Plug in the given points into the formula:

5

−

(

−

6

)

4

−

6

=

11

−

2

Therefore, the slope is  

11

−

2

or  

−

5.5

.

Hope this helps!

What is the measure of each side?....please help

Answers

Answer:

Just do (2x-3)+(x-5)+(x)=180°

Step-by-step explanation:

It is sum of angles of triangle

sorry it took so long i was struggling on this question but heres the answer i go on the measurement on each side.

2x³ +13x³+15x

hope that helped you out ,also please mark me me brainiest and follow me:)

The snow is now 22 inches deep. If this was a 70% decrease, what was the initial depth?

Answers

If snow is 22 inches deep and was 70% dwarves than the depth would be 6.6

What is the graph of the equation x^2-1=0

Answers

Answer:

the graph would be a vertical straight line. if the equation was just x^2 - 1, the graph would be quadratic.

i don’t see any options but the graph would be a vertical line

Which of the following values are zeros of x(x+5)(x-3)?

Answers

Answer:

The expression evaluates to zero when x = 0, -5, or 3

Step-by-step explanation:

As all three terms are multiplied together, only one of them needs to equal zero for the expression as a whole to do so.

Whats The Answer Marking Brainliest, Explain your answer:D

Answers

Answer:

C

Step-by-step explanation:

"per cent" means out of hundred, so it's 70 out of hundred.

I don’t understand this at all

Answers

Answer:

I think the answer is - 2 + ( 3/4) =2 3/4

Step-by-step explanation:

first of all we can take out the =-1 1/4 and - 1 3/4 email it's not it the correct place also  - 2 1/4 because of the 1/4

Question 6
Eric is baking a cake. The recipe calls for
or 2 1/2 pounds of flour for every 1/4 cup of sugar. How many pounds of flour should Eric use for 1 cup of sugar?

Answers

Answer:

10 lbs.

Step-by-step explanation:

If its 2.5 pounds of flour for every .25 cup of sugar

do

1/(1/4)

to get 4 and then do

4 * 2.5

The triangles shown below must be congruent.
30
30°
5
5
OA. True
O B. False

Answers

False. You need to graphically turn the triangle and see if it matches. It’s a trick question, the legs don’t match. They switched the position of the 5 on each triangle and the legs are 100% not equal (30-60-90 triangle).

Note: if the question was changed to 45 degree angle (45-45-90) instead of the famous (30-60-90) then they would be congruent because both legs of each triangle would be 5. In other words the 45 degrees tells us the legs are equal on every triangle but the 30-60-90 triangle tells us 100% the legs must be different.

Pls help me ill give brainliest

Do all 3 to get brainliest

Answers

Answer:

7. B 8. C 9. C

Step-by-step explanation:

7. y is greater than because the area above the line is shaded and since the line is dashed there it's not greater than or equal to.

8. C provides the correct y values for all of the x values.

9. The point (6, 3) produces -3 ≥ -8 which is the only one that is correct out of all the points provided.

17). If 6 apples cost $6.54.
How much does one apple
cost at the same rate?

Answers

Answer:

$1.09

Step-by-step explanation:

6 apples = 6.54

1 = ?

6.54/6

= $1.09

Answer:

$1.09

Step-by-step explanation:

6.54/6=1.09

1.09 is the cost of one apple

You are currently paid 30 an hour at national. Unfortunately, your boss tells you that your payment will decrease by 20 percent. After that deduction, how much will you be making per hour?

Answers

Answer:

24 per hour

Step-by-step explanation:

20% of 30 is 6 { 30 x .2 }

30 - 6 = 24

Answer:

24

Step-by-step explanation:

(100-20)*30

80*30

2400/100

24

Adsilla and Carlos volunteer to fill gift boxes for soldiers serving overseas. Both work at a constant rate. They work together for 4 hours and fill 108 boxes. Adsila fills 11 boxes every hour. How many boxes does carlos fill every hour?

Answers

Answer:

[tex]Carlos = 16[/tex] per hour

Step-by-step explanation:

Given

[tex]Total = 108\ boxes[/tex]

[tex]Hours = 4[/tex]

[tex]Adsila = 11\ boxes\ per\ hour[/tex]

Required

Determine the unit rate of Carlos

First, we need to calculate the total boxes filled by Adsila.

If Adsila gets 11 in 1 hour.

Then Adsila get 4 * 11 in 4 hours

[tex]4 * 11 = 44\ boxes[/tex]

Next, we calculate number of boxes left.

[tex]Left = 108 - 44[/tex]

[tex]Left = 64[/tex]

This is yhe number of boxes filled by Carlos.

Recall that they worked for 4 hours each.

Hence:

[tex]Carlos = \frac{64}{4}[/tex]

[tex]Carlos = 16[/tex]

simplify x (2x - 1) + 5 and find its value at x=3 ​

Answers

Answer:

20

Step-by-step explanation:

x=3

x(2x-1)+5

3 (2 (3)- 1)+ 5

3 (6- 1)+ 5

3(5)+5

15+5

20

Helpppppp!

The locations of E' and F' are E' (−8, 0) and F' (0, 4), and lines g and g' are parallel.
The locations of E' and F' are E' (−4, 0) and F' (0, 2), and lines g and g' are the same line.
The locations of E' and F' are E' (−2, 0) and F' (0, 1), and lines g and g' intersect at point F.
The locations of E' and F' are E' (−1, 0) and F' (0, 0), and lines g and g' are not related.

Answers

Answe The locations of E' and F' are E' (−8, 0) and F' (0, 4), and lines g and g' intersect at point F.

The locations of E' and F' are E' (−4, 0) and F' (0, 2), and lines g and g' are the same line.

The locations of E' and F' are E' (−2, 0) and F' (0, 1), and lines g and g' are parallel.

The locations of E' and F' are E' (−1, 0) and F' (0, 0), and lines g and g' are not related.

are your answer options I went with..  The locations of E' and F' are E' (−2, 0) and F' (0, 1), and lines g and g' are parallel.

Step-by-step explanation:

What is the definition of Point ?

Answers

Answer: A point in geometry/math is a location that has no size, meaning it has no width, no length, and no depth.

Answer:

A point in geometry is a location

Step-by-step explanation:

It has no size, no width, no length, and no depth. A point is shown by a dot.

Can someone answer this pls
14 points (the top one)

Answers

Answer:

7/2

Step-by-step explanation:[tex]1-8/2-4 = -7/-2 = 7/2[/tex]

PLEASE PLEASE HELP!!! urgently

f(x)=-2x+3
g(x)=3x+3
find f(1-x) + g(1-x)

Answers

Answer:

-5x + 11

Step-by-step explanation:

All you're doing is substituting.

f(x)=-2x+3

f(1-x) = 2(1-x)+3

= 2 - 2x +3

= -2x + 5

g(x)=3x+3

g(1-x) = 3(1-x)+3

= 3 - 3x + 3

= -3x + 6

Now add them together and combine like terms:

f(1-x) + g(1-x)

-2x + 5 + -3x + 6

= -5x + 11

if (a+1/a) =4, find the value of (a cube +1/a cube)​

Answers

Answer:

a=2+√3 or a=2−√3

Step-by-step explanation:

Multiply all terms by a and cancel:

aa+1=4a                         ∴ (Simplify both sides of the equation)

a2+1−4a=4a−4a            ∴ (Subtract 4a from both sides)

a2−4a+1=0

For this equation:  a=1,  b=-4,  c=1

1a2+−4a+1=0

a = −b ±  √b2 − 4ac2a divided by 2a    ⇒(Use quadratic formula with a=1, b=-4, c=1)

−(−4) ± √(−4) 2−4 (1) (1) /2 (1)

a=4±√12/2

a=2+√3 or a=2−√3

a=2+√3 or a=2−√3

The graph of the function f(x) is shown below.
COA
2
-6 -6 -4 -2
-2
2468
-4
co
-87
The equation of the function g(x) is shown below.
g(x) = 3x
What is the solution to the equation f(x) = g(x)? Enter your answer in the box.

Answers

Answer:

i think 2\

Step-by-step explanation:

You are saving to buy a new skateboard; so far you have saved $65.
The skateboard costs $190.
You earn $5 per hour at your job.
Write an inequality that represents the possible number of a hours you need to work to buy the
skateboard?

Answers

Answer:

25 hours

Step-by-step explanation:

190-65= 125 divided by 5 would give u 25 hours

hope it helps

Noah makes cookies for all his class and each batch of cookies uses 1 3/4 cups of flour. If he uses 15 3/4 cups of flour in all, how many batches of cookies did he make?

Answers

Answer:

9 batches of cookies

Step-by-step explanation:

1 3/5 -> 1.75 ; 15 3/5 -> 15.75

1.75*9=15.75

9

9 batches of cookies
15 3/4 / 1 3/4=9

Anyone know how to solve this?

Answers

Answer:

[tex]-x^{4}+8x^{3}-17x^{2} +16\\\\=-x^{4}+4x^{3}+4x^{3}-16x^{2} -x^{2} +16\\\\=-x^{3}(x-4)+4x^{2}(x-4)-(x-4)(x+4)\\\\\\=(-x^{3}+4x^{2}-x-4)(x-4)\\\\ =>\frac{-x^{4}+8x^{3}-17x^{2} +16}{x-4}= (-x^{3}+4x^{2}-x-4)+\frac{0}{x-4}[/tex]

Step-by-step explanation:

Ms. Myree's bill at a restaurant was $24.20 before tax. The sales tax rate was 0.05, and Ms. Myree also included a $5 tip. How much did she spend at the restaurant, in dollars?

Answers

Answer:

$30.41

Step-by-step explanation:

24.20 + 24.20(0.05) + 5 =

24.20 + 1.21 + 5 = 30.41

the 1.21 represents the amount she paid in sales tax

Write 27 as a product of primes.
Use index notation when giving your answer.

Answers

27 = 1 x 27, or 3 x 9. Factors of 27: 1, 3, 9, 27. Prime factorization: 27 = 3 x 3 x 3, which can also be written 27 = 3³.

Answer:

3, 9, 3 and 3

Step-by-step explanation:

27

3 and 9

3 and 3

I don't know how to do index notation. I apologize.

When solving this system of equations by elimination, which could be the resulting equation when a variable has been eliminated?

Answers

I believe your answer should be A. 13x=18

What percent of the squares in the model are shaded?

Select one:

a.
54%


b.
0.46%


c.
46%


d.
0.54%

Answers

the answer is a, 54%
A. 54%

Half + 4 =54%



Solve for x.
-2(x+6)=-36

Answers

Answer:

x=12

Step-by-step explanation:

Divide both sides by the numeric factor on the left side, then solve.

HELP DUE TODAY...Marcus has a monthly budget that breaks down as follows 35% for housing 22% for food 12% for utilities 18% for savings 5% for entertainment in 8% for personal items Marcus has a net income of $44,200 each month calculate the amount of money that Marcus has each month for entertainment

Answers

Answer:

Marcus has 408.408 left for entertainment

What is the value of x in the equation 5.5x = 17.6?

A. 3.2
B. 12.1
C. 23.1
D. 96.8

Answers

Answer:

A

Step-by-step explanation:

5.5x = 17.6

x = 3.2

Hsppy to help:)

Answer:

Step-by-step explanation:

X=3.2

5.5x=17.6

5.5x/5.5=17.6/5.5

x=3.2

hope helps you and if you want you can give me a brainly crown only if you want

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