The cost of a pencil box is $2.50. The function f(x) = 2.5x gives the cost of x pencil boxes. Identify the domain, range, and graph of this function.

Answers

Answer 1

Answer: hey want to talk

Step-by-step explanation:


Related Questions

Find the perimeter of each figure.

Answers

Answer:

28 for both of them

Step-by-step explanation:

1 is 28cm and 2 is 28cm

Step-by-step explanation:

since you know 2 of the sides you know the length of half of it since they are squares so if you att the 2 sides you know then multiply it by 2 you get the perimeter of that shape

john’s dog eats 4/5 tin of mince meat added in his meal every day . if dog eats 35 full tins of meat in one week(7 days) then how much does it eat every day.

Answers

Answer:

it eats five mince meat everyday

Can anybody help plzz?? 65 points

Answers

Answer:

[tex]\frac{dy}{dx} =\frac{-8}{x^2} +2[/tex]

[tex]\frac{d^2y}{dx^2} =\frac{16}{x^3}[/tex]

Stationary Points: See below.

General Formulas and Concepts:

Pre-Algebra

Equality Properties

Calculus

Derivative Notation dy/dx

Derivative of a Constant equals 0.

Stationary Points are where the derivative is equal to 0.

1st Derivative Test - Tells us if the function f(x) has relative max or mins. Critical Numbers occur when f'(x) = 0 or f'(x) = undef2nd Derivative Test - Tells us the function f(x)'s concavity behavior. Possible Points of Inflection/Points of Inflection occur when f"(x) = 0 or f"(x) = undef

Basic Power Rule:

f(x) = cxⁿ f’(x) = c·nxⁿ⁻¹

Quotient Rule: [tex]\frac{d}{dx} [\frac{f(x)}{g(x)} ]=\frac{g(x)f'(x)-g'(x)f(x)}{g^2(x)}[/tex]

Step-by-step explanation:

Step 1: Define

[tex]f(x)=\frac{8}{x} +2x[/tex]

Step 2: Find 1st Derivative (dy/dx)

Quotient Rule [Basic Power]:                    [tex]f'(x)=\frac{0(x)-1(8)}{x^2} +2x[/tex]Simplify:                                                      [tex]f'(x)=\frac{-8}{x^2} +2x[/tex]Basic Power Rule:                                     [tex]f'(x)=\frac{-8}{x^2} +1 \cdot 2x^{1-1}[/tex]Simplify:                                                     [tex]f'(x)=\frac{-8}{x^2} +2[/tex]

Step 3: 1st Derivative Test

Set 1st Derivative equal to 0:                    [tex]0=\frac{-8}{x^2} +2[/tex]Subtract 2 on both sides:                         [tex]-2=\frac{-8}{x^2}[/tex]Multiply x² on both sides:                         [tex]-2x^2=-8[/tex]Divide -2 on both sides:                           [tex]x^2=4[/tex]Square root both sides:                            [tex]x= \pm 2[/tex]

Our Critical Points (stationary points for rel max/min) are -2 and 2.

Step 4: Find 2nd Derivative (d²y/dx²)

Define:                                                      [tex]f'(x)=\frac{-8}{x^2} +2[/tex]Quotient Rule [Basic Power]:                  [tex]f''(x)=\frac{0(x^2)-2x(-8)}{(x^2)^2} +2[/tex]Simplify:                                                    [tex]f''(x)=\frac{16}{x^3} +2[/tex]Basic Power Rule:                                    [tex]f''(x)=\frac{16}{x^3}[/tex]

Step 5: 2nd Derivative Test

Set 2nd Derivative equal to 0:                    [tex]0=\frac{16}{x^3}[/tex]Solve for x:                                                    [tex]x = 0[/tex]

Our Possible Point of Inflection (stationary points for concavity) is 0.

Step 6: Find coordinates

Plug in the C.N and P.P.I into f(x) to find coordinate points.

x = -2

Substitute:                    [tex]f(-2)=\frac{8}{-2} +2(-2)[/tex]Divide/Multiply:            [tex]f(-2)=-4-4[/tex]Subtract:                       [tex]f(-2)=-8[/tex]

x = 2

Substitute:                    [tex]f(2)=\frac{8}{2} +2(2)[/tex]Divide/Multiply:            [tex]f(2)=4 +4[/tex]Add:                              [tex]f(2)=8[/tex]

x = 0

Substitute:                    [tex]f(0)=\frac{8}{0} +2(0)[/tex]Evaluate:                      [tex]f(0)=\text{unde} \text{fined}[/tex]

Step 7: Identify Behavior

See Attachment.

Point (-2, -8) is a relative max because f'(x) changes signs from + to -.

Point (2, 8) is a relative min because f'(x) changes signs from - to +.

When x = 0, there is a concavity change because f"(x) changes signs from - to +.

(Will mark brainliest and give $5 Starbucks digital card Include SC!!!) For which set of triangles can you immediately use the AAS congruence criteria to prove them congruent?(1 point)
1. triangles STU and VWX, where ∠T≅∠W, ∠U≅∠X, and SU≅VX

2. triangles GHI and JKL, where ∠G≅∠J, ∠H≅∠K, and GH≅JK

3. triangles MNO and PQR, where ∠N≅∠Q, MN≅PQ, and NO≅QR

Answers

I'm not so sure about this answer, but i remember doing something similar to this. I think it's 3.

A driver receives -25 points for a rule violation. What integer represents the change in points after four rule violations?

Answers

Answer:

It would be -100

is 0.5 or 17/34 greater

Answers

Answer:

They're equal; 17/34 as a decimal is 0.5

Step-by-step explanation:

Hope this helped, Have a Great Day!!

Answer:

17/34 is actually equal to 0.5. So since your comparing it to the decimal o.5 they are both equal to each other (:

Step-by-step explanation:

Thank you for your timeeee

if one apple cost 5 rupee orange cost 0.5 rupee and grape cost 0.25 rupee . find the number of apple orange ad grape we can buy from 20 rupee.

Answers

Answer:

3

Step-by-step explanation:

Add all the costs of the fruit.

5.75

Then divide it by 20.

= 3.4782.....

You can't have a quarter or half and apple so you round down.

Son answer is 3.

Hope this has helped!

Write the equation of the line that has a slope of -3 and a y-intercept of 2 in slope-intercept form.

Answers

Answer:

Step-by-step explanation:

Well, the linear equation of a line is:

y=mx+b

Where  

m

is the slope and  

b

is your y-intercept

So, you can just plug the numbers into the equation

m = − 3

and  

b = − 2

y = − 3x-2

ANSWER NEEDED ASAP!
Find the value of x. (Hint: The sum of the angles in
a triangle is 180 degrees.)





The value of x is degrees.

Answers

Answer:

look below

Step-by-step explanation:

Subtract the sum of the two angles from 180 degrees. The sum of all the angles of a triangle always equals 180 degrees. Write down the difference you found when subtracting the sum of the two angles from 180 degrees. This is the value of X.

Basically since both sides have the same length which means that they will have the same angle degree (consist of the same side).
180-102 = 78
78/2=39
Answers is : x=39

Marisa has $26 in her purse. She pays $5 for lunch. Which expression represents this situation?

Answers

Answer: 26-5

Step-by-step explanation:

literally you take 5 aways from 26

MATH ANSWER IF YOU LIKE THESE SONGS
Muffin time
life is fun
i like trains

Answers

Answer:

1 + 1 = 2 - 3= maths

Step-by-step explanation:

yes dfuilwfjkwdlwo

Answer:

i like trains CHOOOOOO

Step-by-step explanation:

The members of the Smithtown baseball team sell $5 raffle tickets and $20 raffle
tickets for a fundraiser. Emilio sells a total of 50 tickets and has collected $400.
The graph of the system of equations that represents this scenario is shown below.
Which of the following is the best interpretation of the solution to the system of
equations in context of the scenario?
A Emilio has sold 20 of the $20 raffle tickets and 50 of the $5 raffle tickets.
B Emilio has sold 50 of the $20 raffle tickets and 20 of the $5 raffle tickets.
C Emilio has sold 10 of the $5 raffle tickets and 40 of the $20 raffle tickets.
D Emilio has sold 40 of the $5 raffle tickets and 10 of the $20 raffle tickets.

Answers

The answer is D. 40x5=200 and 10x20=200. The total would be 400$

Answer: d

Step-by-step explanation:

Write a conjecture for the following situation - the product of three odd numbers.

Answers

Answer:

5

Step-by-step explanation:

58:27
The sequence below represents Marisa’s fine at the library for each day that she has an overdue book:

$0.50, $0.65, $0.80, $0.95, $1.10, ...

Which equation represents Marisa’s library fine as a function of a book that is n days overdue?

f(n) = 0.15n
f(n) = 0.50n
f(n) = 0.15n + 0.35
f(n) = 0.50n + 0.15

Answers

Answer:

a

Step-by-step explanation:

Convert 4/7 to 42nds

Answers

Answer:

24... I hoped dis helped.

On the set of axes below, triangle ABC is graphed. Triangles A'B'C'
and A"B"C", the images of triangle ABC, are graphed after a
sequence of rigid motions.

Answers

Answer:

Step-by-step explanation:

a reflection followed by a rotation

The sequence of rigid motions of the triangle is a reflection followed by a rotation, option (D) is the correct answer.

What is graph?

A graph can be defined as a pictorial representation or a diagram that represents data or values in an organized manner. Graphs are used to map out functions of two variables on a Cartesian coordinate system, which is composed of a horizontal x-axis and a vertical y-axis.

For the given situation,

The graph shows the triangle ABC plotted in the fourth quadrant.

The triangle A'B'C' are graphed in the third quadrant as its reflection.

The triangle A''B''C'' are graphed in the second quadrant by reflecting the triangle A'B'C' and then rotating it.

Hence we can conclude that the sequence of rigid motions of the triangle is a reflection followed by a rotation, option (D) is the correct answer.

Learn more about graphs here

https://brainly.com/question/11232423

#SPJ2

Amanda is making white oatmeal cookies with raisins and pecans for her club.The recipe makes seventeen of the big,chewy kind of oatmeal cookies with lots of raisins and nuts.It takes one-fourth of a cup of nuts and one-half of a cup of raisins just for the seventeen cookies!There are thirty-four members in Amanda's club .If she makes exactly thirty-four cookies,how many cups of nuts will she need ?

Answers

Answer:

1/2 cup of nuts

Step-by-step explanation:

If it takes 1/4 cups of nuts to make 17 cookies

Then it takes 1/4 * 1/17  = 1/68 cups of nut to make 1 cookie

So,

If 1/68 cups of nut are needed to make 1 cookie

To make 34 cookies we need;

34 * 1/68 = 1/2 cup of nuts

15+10f=-12 does someone knows this one?

Answers

Answer:

f = - 2.7

Step-by-step explanation:

15 + 10f = -12

10f = -12 - 15

f = -27/10

f = - 2.7

PLS PLS PLS HELP THIS IS AN ALGEBRA 2 QUESTION

Answers

Answer:

look

Step-by-step explanation:

When she simplified her radical she put 5x*2x and 12 squared

what she should ahve done is 5x*4x^2 square 3x

Can you guys check these :) I’ll give brainleist :)

Answers

Answer:

9. No

10. Yes

Step-by-step explanation:

The first one is not, since you have (3, 3) and (3, 9).  In a function, each x maps to a single y.

The second one is since every x appears only once.

What is 40% of 60????

Answers

The answer: 40% of 60 is 24

Answer:  40% of 60 = 24

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Answers

NONONONONONONONONONONONONONONONONONONONONONONONONONONKNONONONONONONONONONONONONONONONONONONONONONONONONONONONONONONONONO
NONONONONONONONONONONONONONONONONONONONONONONONONONONKNONONONONONONONONONONONONONONONONONONONONONONONONONONONONONONONONO
NONONONONONONONONONONONONONONONONONONONONONONONONONONKNONONONONONONONONONONONONONONONONONONONONONONONONONONONONONONONONO
NONONONONONONONONONONONONONONONONONONONONONONONONONONKNONONONONONONONONONONONONONONONONONONONONONONONONONONONONONONONONO

Hello! if anyone could help me I'd really appreciate it!. Thanks !​

Answers

Answer:

the first one i think

Step-by-step explanation:

-3 is the y-intercept and that i all i got, sorry :(

Answer:

Its the first one! <3

Determine the solution for x^2-3x-28=\> 0

Answers

Answer: x = -4 or x = 7

Step-by-step explanation:

x^2 - 3x - 28 =/>

(factor)

(x^2 + 4)(x-7) = 0

x + 4 = 0 or x - 7 = 0

(subtract -4 from 0 and 7 from 0)

x = -4 or x =7

Answer:

(infinity, -4] or [7, infinity).

Step-by-step explanation:

right on edge

At an online fruit dealer, it costs $39 for 75 cases of bananas. What is the unit price?

Answers

Answer:

$0.52 cents per banana. $39 divided by the 75 bananas

Step-by-step explanation:

Answer:

$0.52

Step-by-step explanation:

When finding the unit price, we use divide the certain number of units of an item by the number of units

So for this question we will divide 39/75 to get a result of $0.52

I dont understand this

Answers

Answer:

x=66

Step-by-step explanation:

180-114=66

Interior angles on the same side of transversal are supplementary (180°).

So,

x + 114° = 180°

=> x = 180° - 114°

=> x = 66°

PLease answer the slope
!!!!!!!!!!!!!!!!!!!

Answers

-2/1 or -2

Ignore this, Brainly be saying my answer should have more words-_-

i need help asappppp​

Answers

Answer:

make them all the separate rectangle

like 5*8+5*8+12*(15-8) = Answer

got it ?

Answer:

5*8=40

+5*8=40

+(15-8)= 7*12 =84 + 80

=164

Step-by-step explanation:

ps  happy thanksgiving

Line b passes through (3, 4) and (0, 2).
is it parallel?

Answers

Answer:

no perpendicular

Step-by-step explanation:

Which number would make this inequality true?


______ <0.271



0.27100


0.28


0.21


0.309

Answers

0.21 because it is the only one smaller than 0.271 plz mark brainliest, trying to be virtuoso
that answer is correct also ^^^

question says.

which number would make this inequality true?________< 0.271

answer is

0.21

have a good day!!

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Creating engraved woodeute allowed artists toA use bright colors,B. copy famous paintings.C. decorate altarpiecesD. print images on paper 2) Which three underlined words from the passage could be changed to amore positive connotation?A) change plain to uglyB) change lazy to relaxedC) change slender to lankyD) change mutt to mixed-breedE) change egghead to intellectual evaluate the expression for the give value of the variable. 3d 4 d = 1.2 HURRY! Select the correct demonstrative adjective from each drop-down menu to match the translation given. Pay attention toagreement (masculine, feminine, singular plural). It may help to review the Social Networking tutorial.Fill in the blanks for each one. The drop down menu has the answer choices : ese esas estas estos esta If the process illustrated in the diagram is interrupted by a chemical at point X, there would be an immediate effect on the release of 1) Chlorophyll (2) carbon dioxide gas (3) nitrogen gas (4) oxygen gas write the difference between the jayasthiti malla in ram shah What is the result of homeostasis at the cellular level? *A The cell dies.B The environment within the cell is stable.C The cell no longer obtains energyD The cell divides. Which of the following options all contain calories?Fat, minerals, vitaminsVitamins, protein, carbsCarbs, fat, proteinProtein, minerals, waterVitamins, water, mineralsFat, water, carbs Accounting Employees view budgeting more positively when goals are established for them by senior management. a. True b. False What type of research is being used when gathering data from structured survey responses that are numerical in nature?A. Qualitative.B. Observational.C. Quantitative.D. Secondary.E. Tertiary. Can somebody help me with this please? hellppppp please will give brainliest 67,132 divided by 7= ? Round your answer to the nearest tenth. Simplify the expression (-a)^-18 _ is the study of the natural features, processes, and patterns that occur on the Earths surface. HELP...What is one result of the Agricultural Revolution * A- More farm workers were needed B- Less farm workers were needed C- Millions of small farms were needed D- Less crops were grown Write a one page expository essay comparing and contrasting slavery practices in both East and West Africa. How is this similar or different from what you already know about slavery in America? What are some of the problems with slavery in general? What do you think about slavery in both East and West Africa? (( If you could please, hurry! I'm on a test and we have 10 minutes left! :0 )) what are the steps taken by nature to change a mountain into soil? (weathering and erosion) Why did Champlain and the colonists need allies?ASAP please if someone gives me the answer in their own words I will give brainlest 7(1 - x) = -3(x - 2)