What is the domain of the relation {(2, 8), (0, 8), (–1, 5), (–1, 3), (–2, 3)}?

Answers

Answer 1
Answer: The domain is simply all of the x values.

We have a 2, 0, -1, -1, and -2.

Get rid of duplicates, so 2, 0, -1, and -2.

We're going to want to order those, so -2, -1, 0, and 2.

And put some fancy brackets on that. {-2, -1, 0, 2}
Answer 2
Answer: Domain          Range
    -1                    3
     0                    5
     2                    8
     3

The domain of the relation {(2, 8), (0, 8), (-1, 5), (-1, 3), (-2, 3)} is {-1, 0, 2, 3}.


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If one gallon is the same amount as 16 cups, how many cups equal 2.5 gallons? (Only input whole numbers.)

Someone please help me, I’m struggling :(

Answers

Answer:

constant

Step-by-step explanation:

Since this is a horizontal line the slope is zero

This means the graph is constant

Answer:

constant because it isn't going up or down, just moving straight

Step-by-step explanation:

how is the number of lines of symmetry for a regular polygon connected to the number of sides of the polygon

Answers

Excluding some quadrilaterals, some polygons like a hexagon or square have the same amount of lines of symmetry as they do sides.

Monique collects data from a random sample of seventh graders in her school and finds that 8 out of 16 seventh graders participate in​ after-school activities. Write and solve a proportion to estimate the number of seventh graders n who participate in​ after-school activities if 136 seventh graders attend​ Monique's school. Write the proportion used to solve this problem. Choose the correct answer below.

Answers

Answer:

Whatever are you answer choices, choose 68 or the closest answer possible. (Can i have brainliest please?)

Step-by-step explanation:

8/16=x/136 would be the ratio because it is sample/population

Solving gets x=68 people.

Whatever are you answer choices, choose 68 or the closest answer possible.

Perry can fill a sorter with oranges from the conveyer belt in 10 minutes. While Perry fills the sorter, Gillian takes oranges out of the sorter and puts them in shipping crates. With Gillian taking oranges out of the sorter, it takes 25 minutes for Perry to fill the sorter.Which of the following can be used to determine the amount of time it takes for Gillian to empty the sorter if Perry does not add oranges?

A) 1 over 10 minus 1 over x equals 1 over 25
B) 1 over 10 minus 1 over 25 equals 1 over x
C) 1 over 25 minus 1 over x equals 1 over 10
D) 1 over 10 minus 1 over x equals x over 25

Answers

If x is the amount of time Gillian takes,
1/10 - 1/x = 1/25
Therefore, the answer is A

Answer:  The correct option is

A) 1 over 10 minus 1 over x equals 1 over 25

Step-by-step explanation: We are given to select the correct option that can be used to determine the amount of time it takes for Gillian to empty the sorter if Perry does not add oranges.

Let, 'x' minutes be the amount of time it takes for Gillian to empty the sorter if Perry does not add oranges.

We have

Time taken by Perry to fill the sorter with oranges from the conveyor belt

= 10 minutes.

So, in 1 min, the portion of the sorter filled by Perry from conveyor belt is

(1)/(10).

While Gillian taking oranges out of the sorter, time taken by Perry to fill the sorter with oranges = 25 minutes.

So, in 1 min, the portion of the sorter filled by Perry is

(1)/(25).

Time taken by Gillian to empty the sorter if Perry does not add oranges = x min.

So, in 1 minute, the portion of the sorter emptied by Gillian is given by

(1)/(x).

Therefore, the required equation that determine the amount of time it takes for Gillian to empty the sorter if Perry does not add oranges is given by

(1)/(10)-(1)/(x)=(1)/(25).

Thus, (A) is the correct option.

A conference room is in the shape of a rectangle. Its floor has a length of (x − 4) meters and a width of (3x − 1) meters. The expression below represents the area of the floor of the room in square meters: (x − 4)(3x − 1) Which of the following simplified expressions represents the area of the floor of the conference room in square meters?

Answers

You have to foil. Times the first two: x(3x). Then times the outer two: x(-1). Then times the inner two: -4(3x). Finally, times the last two: -4(-1). Your equation would be 3x squared - 1x - 12x + 4. Therefore, the simplified answer is 3x^2 (3x to the second power) - 13x + 4.

Answer:

Simplified expressions which represents the area of the floor of the conference room in square meters is:

3x²-13x+4

Step-by-step explanation:

A conference room is in the shape of a rectangle.

Its floor has a length of (x − 4) meters and a width of (3x − 1) meters.

we know that Area of rectangle=Length×Breath

Area of floor of the room=(x-4)(3x-1)

(x-4)(3x-1)=x(3x-1)-4(3x-1) (Distributive property)

               = 3x²-x-12x+4   (Distributive property)

              = 3x²-13x+4   (On combining the like terms)

Hence, simplified expressions which represents the area of the floor of the conference room in square meters is:

3x²-13x+4

Your friend deposits $8500 in an investment account that earns 2.8% annual interest. What is the balance after 8 years when the interest is compounded quarterly? 1

Answers

I believe the balance would be $10,601.42

Hopefully that is the right answer