Mathematics High School

What is de DOMAIN of {(-2, 6) (4 , 9) (5, 12)} *
{6,9,12)
{-2,4,5)
6 sy s 12
-25x55

Answers

Answer 1
{-2,4,5). The second one.

Related Questions

Need helpp Hurry to get brainliest!!

Answers

Answer:

x =30

Step-by-step explanation:

4x + 40 = 6x-20 (set them equals)

40= 6x-  20-4x

40+20=2x

2x=60

divide by 2

x=30

Answer:

the answer is x=7

Step-by-step explanation:

9. If f(x) = 5x-4 and f(2a) =156 , then what is the value of a?

Answers

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[tex]f(x) = 5x - 4[/tex]

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[tex]f(2a) = 5(2a) - 4[/tex]

[tex]f(2a) = 10a - 4[/tex]

[tex]156 = 10a - 4[/tex]

[tex]10a - 4 = 156[/tex]

Add sides 4

[tex]10a - 4 + 4 = 156 + 4[/tex]

[tex]10a = 160[/tex]

Divide sides by 10

[tex] \frac{10a}{10} = \frac{160}{10} \\ [/tex]

[tex]a = 16[/tex]

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2(x+y) = 5
How would I solve for x ?

Answers

After you reach 2x=5-2y you take the 2 and put it on the other side by division so you can end up with only x on the left side so in the end it would be x=(5-2y)\2

look at the pic below
answer quick please I need this asap
i will mark thx, star you & mark brainliest

Answers

Answer:

2 and 1 because look at the question

How many more times larger is 8,000 than 8?

Answers

Answer:

8,000 is 1,000 times bigger than 8

Answer:

1,000 times bigger because you have to add the 0's in it.

Step-by-step explanation:

what is the value of x

Answers

Answer:

x=55⁰

Step-by-step explanation:

the line js supplementary so 180-125= 55

pls vote brainliest

Brian notices that a 25-meter flagpole casts a 30 meter shadow. If a nearby telephone pole casts a 40-meter shadow, how tall is the telephone pole?​

Answers

Answer:its a 35 meter

g(x)=x+2 graph the parent function

Answers

Answer:

Step-by-step explanation:

what amount that is greater than one is represented by a percent that is what 100%.

Answers

Answer:

Step-by-step explanation:

A percent greater than 100% represents a comparison between one value that is greater than another value, with the second value being the base, represented by 100%. In situations like rainfall and revenue, these kinds of comparisons are common.

What is the correct answer for both? ​

Answers

Answer:

14)   C (-2, 4)

15)   D (-3, -3)

Step-by-step explanation:

-6x + 4y = 28

6x + 9y = 24

-6x + 4y = 28

4y = 28 + 6x

y = 7 + 1.5x

6x + 9y = 24

6x + 9(7 + 1.5x) = 24

6x + 63 + 13.5x = 24

19.5x + 63 = 24

19.5x = -39

x = -2

-6x + 4y = 28

-6(-2) + 4y = 28

12 + 4y = 28

4y = 16

y = 4

____________

4x - 4y = 0

-4x + 3y = 3

4x - 4y = 0

4x = 4y

x = y

-4x + 3y = 3

-4(y) + 3y = 3

-4y + 3y = 3

-1y = 3

y = -3

4x - 4y = 0

4x - 4(-3) = 0

4x + 12 = 0

4x = -12

x = -3

Which value is the slope in the equation:
y= 4x + 2

Answers

Answer:

it's 4 ^_________^ ig my answer needs to be longer

anyone whos great at math?!?!?!?!!? the question is [tex]-x^2 -4xy+y^2 when x=-5 and y=-2[/tex]
I ALSO NEED TO SHOW MY WORKK PLAESEEEEE

Answers

Answer:

-19

Step-by-step explanation:

x= -5       y = -2

-x^2 - 4xy + y^2

- -5^2 -4(-5 x -2) -2^2                      Plug in

+ 5^2 -4(-5 x -2) -2^2                      Change the signs for - -5

  5^2 - 2^2 - 4(10)                           Place Liked Terms together

  25 - 4 - 40                                    Subtract

      21 - 40

         -19

 

the temperature in an experiment is increased at a constant rate over a period of time until the temperature reaches 0 degrees celsius. the equation y=5/2x-70 gives the temperature y in degrees celsius x hours after the experiment begins. Find and interpret the x- and y- intercepts.

Answers

Answer:

x = 28 (So it takes 28 hours for the temperature to reach 0°C.)

y = -70 (So the temperature when the experiment begins is −70°C.)

Step-by-step explanation:

To find the the x value, you remove the y value or replace it with 0.

0 = 5/2x - 70

Next you move the variable.

70 (2/5) = x           (multiply 70 by 2 to get 140 and divide that by 5)

And now you simplify to get:

28

To find the y value, you remove the x value or replace it with 0.

y =  0 - 70

And now you simplify to get:

-70

x = 28

y = -70

x = 28 (So it takes 28 hours for the temperature to reach 0°C.)

y = -70 (So the temperature when the experiment begins is −70°C.)

HELP ASAP. ‼️‼️‼️‼️‼️

Answers

Answer:

Nice Shoes..

Step-by-step explanation:

The answer is 16 to the 4th power for #1     89c for #2         and 29f for the third

for m(x)=-2x+7, find the value of x for which m(x)=13

Answers

Answer:

x = -3

Step-by-step explanation:

m(x) = -2x + 7

13  = -2x + 7

6 = -2x

x = -3

The answer is x= -3




The explanation if you need it is since m(x)=13 we get the equation 13=-2x+7. Then we use the equation to find x.


13= -2x+7
-7 -7
6= -2x
— —
-2 -2

-3=x

You then want to check your answer by substituting -3 for x

13= -2(-3) +7
13= 6+7
13=13
If your answers match then your answer is correct

Bacteria doubles every 10 minutes. If you start with 2 bacteria in a petri dish, how many bacteria will there be after 40 minutes?

Answers

Answer: I think the answer is 32 bacteria after 40 minutes.

Step-by-step explanation:

I think that's right because the bacteria that have previously multiplied will also be multiplying. 2 becomes 4, 4 becomes 8, etc. until you've reached 40 minutes. (I'm honestly unsure, but I think this is right?) I hope this helped!

what dose –2 + 3 equal

Answers

Answer:

-2 + 3 = 1

Step-by-step explanation:

Brainliest? uwu

We are two numbers
Our median is 3
Our minimum is 2, What numbers are we?

Answers

Answer:

2,4

Step-by-step explanation:

median=3

minimum is 2

first no. is 2

second no. is 4

2,4 lol hahaha your welcome I’m sure I’m right but Yee

Shelila had $4.75 to buy pencils for an art class and each pencil costs 89c. How much pencils will she have?

Answers

Answer:

5 pencils

Step-by-step explanation:

4.75 / 0.89 = 5.33

Since you can't buy 1/3 of a pencil, Shelila can only buy up to 5 pencils

Casey is making a flower arrangement with roses r and carnations c the cost of each rose is $0.50 and the cost of each carnation is $0.10 . the arrangement has a total $20. how many of each flower did Casey put in his arrangement

Answers

Answer:

r+c=80

.50r+.10c=20

Step-by-step explanation:

each rose costs $0.50

each carnation costs $0.10

The number of roses is r, and the number of carnations is c.

the arrangement has a total of 80 flowers, so we have that:

r + c = 80

the cost is $20, so we have:

r*0.5 + c*0.1 = 20

so our system of equations is:

r + c = 80

r*0.5 + c*0.1 = 20

and we can also solve it; for this isolate one of the variables in the first equation:

r = 80 - c

now let'r replace this in the second equation:

(80 - c)*0.5 +c*0.1 = 20

40  - c*0.4 = 20

c = 20/0.4 = 50

this means that we have 50 carnations, and the other 30 are roses.

i was so lost that i almost forgot the answer was in my face

hope this help shawty

So, who is ready for the weekend?

Answers

Answer:

pls follow me now now I help

Meee no online tmr for meee

The morning low tide at the beach is 12 inches. After 6 hours, the afternoon high tide is 57 inches. What is the average number of inches the tide changed per hour?

Answers

Answer:

7.5 inches per hour

Step-by-step explanation:

Given that:

Morning low tide at beach = 12 inches

Afternoon tide after 6 hours = 57 inches

Average number of inches tide changed per hour :

(Afternoon tide - morning tide) / number of hours

(57 inches - 12 inches) / 6 hours

45 inches / 6 hours

= 7.5 inches per hour

there is your answer. hope this helps

What is the value of X?

Answers

Answer:

the answer to x is 111

Step-by-step explanation:

A+B=X

Since its extended you add the two legs together

Hope this helps!

Answer:

111 degrees

Step-by-step explanation:

Angles in a triangle add up to 180 degrees, so we do 180-36-75 to find out the missing angle (=69). Then, angles on a straight line add up to 180 degrees too, so we do 180-69=111 degrees. :)

Will runs a business that employs 105 staff.
Each member of staff works 35 hours a week and gets an hourly wage of £7.60
The staff have complained that they are not being paid enough and have asked
for a 10% pay rise.
How much will the proposed pay rise cost Will on a weekly basis?
£
​

Answers

Each employee makes 35 x 7.60 = 266 per week.

105 employees x 266 = 27,930 per week total pay.

27930 x 10 % = 27930 x 0.10 = 2,793 more per week.


PLEASEE HELP.!! ILL GIVE BRAINLIEST.!! *EXTRA POINTS* DONT SKIP:((

Answers

Answer:

okaaaay. this is 10 units to the y axis...

Step-by-step explanation:

you can use the method “rise over run”. wherever the line touches a new box is where you stop. in this case, you go up two and over one. meaning your slope is 2.

PLEASEE HELP.!! ILL GIVE BRAINLIEST.!! *EXTRA POINTS* DONT SKIP:((

Answers

c and e are expressions.

b is an equation.

a and d are inequalities.

Expressions are the only ones WITHOUT an 'equals', 'greater', or 'less than'.

( = , > ,. < )

A stovetop burner on medium reaches 95°C. Which will also receive a flow of heat directly from the burner

Answers

Answer:

The surrounding air

Step-by-step explanation:

Answer:

the surrounding air

Step-by-step explanation:

Find the slope of the line that passes through the pair of points: (2,-3) and
(0,-2) *
1 point

Answers

Answer:

It would be -1/2

Step-by-step explanation:

-2--3/0-2=-1/2

The school will not announce a snow day unless there is at least 10 inches of snow on the ground. If it has already snowed 1.5 inches, how much more must it snow before school is canceled?

Answers

Answer:

8.5 inches

Step-by-step explanation:

10 - 1.5 = 8.5

Charli deposits $5,000 in a savings account earning 5.75% simple interest per year.

PART A: How much interest will Charli earn for a period of 10 years?

PART B: How much money will there be in Charli's account after 10 years?


I need help quick! Could you and by putting PART A: (answer) and PART B: (answer) Thank you!!! Please help!

Answers

The total amount accrued, principal plus interest, from simple interest on a principal of $5,000.00 at a rate of 5.75% per year for 10 years is $7,875.00.

Answer:

PART A: 2,875

Step-by-step explanation:

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