4. GROCERIES A local grocery store sells grapes for $1.99 per pound. Determine whether the function that models the

cost of grapes is discrete, continuous, or neither discrete nor continuous. Then state the domain and range of the

function.

Answers

Answer 1

Answer:

Ok, we know that the price, per pond of grapes, is $1.99.

Now the function that models the cost of grapes is:

C(x) = $1.99*x

Where x is the number of pounds that you buy.

Here we can assume two things:

1) The grapes are already in bags, so x can be only whole numbers, as x can take only whole numbers, the cost c(x) will be discrete because there are a lot of possible costs that are not accessible.

Then the domain is:

D: {0, 1, 2, 3, 4.....}

And the range is :

R: {0*$1.99. 1*$1.99, 2*$1.99, ...}

2)You can choose any amount of grapes that you want, and then the grapes are weighted when yo pay.  (This has not really sense, but it is fun to analyze the problem in different ways)

Here the weight can take almost any value, because with individual grapes you can have almost any number of pounds.

But the unit that defines the total weight is the weight of a single grape.

Then if you have N grapes (and all of them weight almost the same, let's say M)

The total weight will e N*M

If you add one more grape, the weight is: (N + 1)*M

Then it is still discrete!

As we do not know the mean weight of a grape, we can not find the domain  nor the range in this situation, so the one above is the one that we should consider the correct one.


Related Questions

Determine if the function is one-to-one.

Answers

Answer:

No

Step-by-step explanation:

From what I saw on google for what "one to one" means, It's basically meaning that the bottom of that quadratic function is at point (0 , 0) and hits both (-1 , 1) and (1 , 1) on the graph.

Draw the diagram and find x. Show your work. A.X=7 B.x=15 C.x=11

Answers

Answer : x= 11°

AngleA=44°

AngleB=55-9=46°

What is -4.26 + 1.3

Please help me thanks

Answers

Answer:

-2.96

Step-by-step explanation:

The answer is -2.96.

The length of a rectangular room is 8 feet more than twice the width. If takes perimeter of the room is 124 feet, what are its dimensions?

Answers

Hey there! I'm happy to help!

Let's call the length and width L and W respectively.

L=2W+8

2W+2L=124

We plug our value of L into the second equation and solve for W.

2W+2(2W+8)=124

We undo the parentheses with the distributive property.

2W+4W+16=124

Combine like terms.

6W+16=124

Subtract 16 from both sides.

6W=108

Divide both sides by 6.

W=18

We plug this W value into the first equation to solve for L.

L=2(18)+8

L=36+8

L=44

So, the length is 44 feet and the width is 18 feet.

Have a wonderful day! :D

please solve this and show your working out. thanks!

Answers

Answer:

first

area of rectangle = l*b

                         =     (3x-y+4) ( X+7)

                       = 3x²-xy + 4x+21x-7y+28

                       = 3x²-xy +25x-7y +28

Area of square = l²

                        = (x-2)²= x²- 4x +4

area of shaded region=( 3x²-xy +25x-7y +28) -(x²- 4x +4)

                                     =2x²-xy +29x-7y+24

         

Step-by-step explanation:

scale factor 0.1 is it en large preserve or reduce

Answers

Answer:

Stay the same

Step-by-step explanation:

1 * x = x it will stay the same

If A and B are the solutions to the equation x^2-23x+130 , what is the sum of A and B ?
A) -10
B) 10
C) 23
D) 33
E) 50

Answers

Answer:

                1 C) 23

               2 D) x + y + 2

Step-by-step explanation:

 

1.

a = 1 ,  b = -23, c = 130

b²-4ac = (-23)²- 4×1×130 = 529 -520 = 9>0

if solutions (A=x₁, B=x₂) exist (b²-4ac≥0) then based on vieta's formula:

[tex]A+B=x_1+x_2=-\dfrac{b}a=-\dfrac{-23}1=23[/tex]

2.

sum of two even integers is na even integer

sum of two odd integers is na even integer

only sum of an even integer and an odd integer is an odd integer

x is even and y is odd so 2x is even and ±2y is even and x+y is odd

1 is odd and 2 is even which means:

2x±2y is even,

x+y + 1 is even

x-2y is even

only x+y+2 is odd (as sum of odd x+y and even 2)

At a particular restaurant, each chicken wing has 75 calories and each slider has 250 calories. A combination meal with chicken wings and sliders is shown to have 800 calories and twice as many chicken wings as there are sliders. write a system of equations that could be used to determine the number of chicken wings in the combination meal and the number of sliders in the combination meal. Define the variables that you use to write the system.

Answers

Answer:

x = 2y --------(1)

75x + 250y = 800 ---------(2)

Step-by-step explanation:

Let the number of chicken wings be x

And the number of sliders be y

x = 2y --------(1)

75x + 250y = 800 ---------(2)

The system of equation is x = 2y and 75x + 250y = 800.

Important information:At a particular restaurant, each chicken wing has 75 calories and each slider has 250 calories. A combination meal with chicken wings and sliders is shown to have 800 calories and twice as many chicken wings as there are sliders. here we assume the number of chicken wings be x and number of sliders be y

Equation:

x = 2y --------(1)

75x + 250y = 800 ---------(2)

learn more about the equation here: https://brainly.com/question/1596312

if it is 9:36 pm what time would it be a hour and a half later

Answers

Answer:

an hour would make it 10, then another 30 minutes added to the 30 would make it 11, so 11:06 pm

Step-by-step explanation:

this is integrated math2, i’m so lost idk what this is

Answers

If you have questions just message me. I hope this helps

12z - 3 > 27z- 15

Answer terms in mixed number.

Answers

Answer:

Step-by-step explanation:

12z - 3 > 27z - 15

-15z - 3 > -15

-15z > -12

z < 12/15= 4/5

Given the triangle that has a base of five less than triple the height. The height is 2x+6.




Part A: Determine the expression that represents that area of the triangle.

Answers

Answer:

         A = 0.5(2x+6)(6x+13) = 6x² + 49x + 78

Step-by-step explanation:

H = 2x+6          - the hight

3H = 3(2x+6)      - triple the hight

3H-5 = 3(2x+6) - 5    -  five less than triple the height

Area of triangle:  A = 0.5BH

B = 3(2x+6)-5 = 6x + 18 - 5 = 6x + 13

H = 2x+6

So:

    A = 0.5(2x+6)(6x+13) = (x+6)(6x+13) = 6x² + 13x + 36x + 78

    A = 6x² + 49x + 78

80iu612345678909876533456
.

Answers

Answer:

weird

Step-by-step explanation:

uhhh why would you- nvm

What is 6.85% percent written as a decimal?
0.685
.0685
68.5
.00685

Answers

.0685 is the answer. you move the decimal in the percentage two times to the left.

2. The ticket for an NBA playoff game is $13,000. Suppose
you have $5,000 saved and every week you save another
$800. You use the following equation to calculate how
much money you have after a certain amount of weeks:
f(w) = 5000 + 800w

What does w represent in this equation?

Answers

Answer:

18,500 because youvadd 500

A truck rental company rents a truck for one day by charging $39 plus $1 per mile. Write a linear model that relates the cost C, in dollars, off the renting truck to the number of M miles driven.

Answers

Answer:

1m+39c=y

Step-by-step explanation:

suppose you pick a card at random from the 13 clubs of a standard deck. What is the probability:

Answers

Answer:

1/13

Step-by-step explanation:

this is because you have an equal probability of choosing any of the 13 different cards

Simplify the expression
7 + 10(x + 8)

Answers

Answer:

87+10x

Step-by-step explanation:

7 + 10(x + 8)

7 + 10x+80

87+10x

I hope this helps :)

The answer your looking for is 87+10x

HELP!!!!!!! Correct answers only!!!! Will give brainliest!!!!!! One-third cup of black beans provides 20% of the potassium you need daily. You must get the remaining 1,360 milligrams from other sources. How many milligrams of potassium should you consume daily?

Answers

Answer:

1,700 MG

Step-by-step explanation:

1, 360 / 2 = 40% of the daily amount since 20% is taken from the beans.

1360 / 2 = 680

680 (40%) / 2 = 340, which is 20%.

Then, add 20% (340) to 1, 360, which gives the full percentage.

I BET NO ONE KNOWS THIS QUESTION. Lower income tends to predict less parental involvement. IN this example, lower income is:
A. a reliable variable
B. a control variable
C. an independent variable
D. a dependent variable
i think d

Answers

I think it is D too.

Answer:

Don't get wrong i think its d

Step-by-step explanation:

Llen's score in a video game was changed by −50 points because he missed some targets. He got −10 points for each missed target. How many targets did he miss? Allen missed targets.

Answers

Llen missed 5 targets, this is because -50 divided by -10 equals 5. Hope this helps! <3

Some triangles are drawn on squared paper. Which 3 triangles are congruent to one another?​

Answers

Answer:

There are not 3 but only 2. The answer is below!

ASA stands for "angle, side, angle" and means that we have two triangles where we know two angles and the included side are equal. If two angles and the included side of one triangle are equal to the corresponding angles and side of another triangle, the triangles are congruent.

Step-by-step explanation:

Answer: a, d, e

Step-by-step explanation:

Help on this question pls

Answers

Answer:

The answer is D, -11 degrees.  

Step-by-step explanation:

Angle RQP is total sum of angles RQU, (96 + x) and UQP, (x + 57).  

Angle RQP = 131.  

(96 + x) + (x + 57) = 131

153 + 2x = 131

2x = -22

x = -11.  

Therefore, answer is -11 degrees.  

this is algebra 1 unit 1 or lesson 1

Answers

Answer:

if I am correct I believe it should be 1153.5 calories

what is 12 miles below sea level

Answers

Answer:

I'm assuming you mean the negative number of it so -12

Step-by-step explanation:

Answer:

-12 miles

Step-by-step explanation:

below is a key word, so you know you are going down

Find the perimeter of a quarter circle that has a diameter of 7 feet.

Answers

Answer:

21.99ft

Step-by-step explanation:

Answer:

21.99ft

Step-by-step explanation:

21.991 feet

263.89 inches

21′ 11.89″ feet and inches

6.7029 meters

670.29 centimeters

any actives ???can y’all please help me

Answers

Answer:

The right answer is B.

Step-by-step explanation:

because u are solving for y which makes u subtract.

Austen's graduation picnic costs $2 for every attendee. Write an equation that shows the relationship between the attendees x and the cost y.

Answers

Answer:

y=2x

Step-by-step explanation:

x = attendees

y = total of cost for attendees

we know each attendee cost $2 but we don't know how many attendee are there in order to find the total cost y.

1/2(8-6x)=x


NEED HELP!!!

Answers

Answer:

x=1

Step-by-step explanation:

1/2(8-6x)=x

Distribute

1/2 * 8 - 1/2 * -6x = x

4 -3x = x

Add 3x to each side

4 -3x+3x= x+3x

4 = 4x

Divide each side by 4

4/4 = 4x/4

1= x

Distance between (5,0) and (2,-2)

Answers

Answer: d(distance) = [tex]\sqrt13\\[/tex]

Hope this help!

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