Is (0, 3) a solution to the inequality y > 2x + 3?

Answers

Answer 1

Answer:

Step-by-step explanation:

Is (0, 3) A Solution To The Inequality Y > 2x + 3?
Is (0, 3) A Solution To The Inequality Y > 2x + 3?

Related Questions

f(x) = 3x - 8 and g(x) = -x - 4. Find (f + g)(x) and (f + g)(5).

Answers

Answer:

(f+g)(x) = 3x - 8 -x -4

(f+g)(x) = 2x-12

(f+g)(5) - substitute 5 into x

(f+g)(5) = 2(5)-12

(f+g)(5) = 10-12

(f+g)(5) = -2

Step-by-step explanation:

Suppose brine containing 0.2 kg of salt per liter runs into a tank initially filled with 500 L of water containing 5 kg of salt. The brine enters the tank at a rate of 5L/min. The mixture, kept uniform by stirring, is flowing out at the rate of 5 L/min. (The same conditions as in the previous problem). After 10 min, a leak develops in the tank and an additional liter per minute of mixture flows out of the tank.

(a) Find the concentration, in kilograms per liter, of salt in the tank after 10 min. [Hint: Let A denote thenumber of kilograms of salt in the tank at t minutes after the process begins and use the fact that rate of increase in A = rate of input - rate of exit.

(b) After 10 min, a leak develops in the tank and an additional liter per minute of mixture flows out of the tank. What will be the concentration, in kilograms per liter, of salt in the tank 20 min after the leak develops?

Answers

Answer:

(a) 0.288 kg/liter

(b) 0.061408 kg/liter

Step-by-step explanation:

(a) The mass of salt entering the tank per minute, x = 0.2 kg/L × 5 L/minute = 1 kg/minute

The mass of salt exiting the tank per minute = 5 × (5 + x)/500

The increase per minute, Δ/dt, in the mass of salt in the tank is given as follows;

Δ/dt = x - 5 × (5 + x)/500

The increase, in mass, Δ, after an increase in time, dt, is therefore;

Δ = (x - 5 × (5 + x)/500)·dt

Integrating with a graphing calculator, with limits 0, 10, gives;

Δ = (99·x - 5)/10

Substituting x = 1 gives

(99 × 1 - 5)/10 = 9.4 kg

The concentration of the salt and water in the tank after 10 minutes = (Initial mass of salt in the tank + Increase in the mass of the salt in the tank)/(Volume of the tank)

∴ The concentration of the salt and water in the tank after 10 minutes =  (5 + 9.4)/500 = (14.4)/500 = 0.288

The concentration of the salt and water in the tank after 10 minutes = 0.288 kg/liter

(b) With the added leak, we now have;

Δ/dt = x - 6 × (14.4 + x)/500

Δ = x - 6 × (14.4 + x)/500·dt

Integrating with a graphing calculator, with limits 0, 20, gives;

Δ = 19.76·x -3.456 = 16.304

Where x = 1

The increase in mass after an increase in = 16.304 kg

The total mass = 16.304 + 14.4 = 30.704 kg

The concentration of the salt in the tank then becomes;

Concentration = 30.704/500 = 0.061408 kg/liter.

Calculating the salt concentration per liter of water we will find:

(a) [tex]0.288 kg/liter[/tex]

(b) [tex]0.061408 kg/liter[/tex]

The mass of salt entering the tank per minute:

[tex]X= (0.2)( 5) = 1 kg/minute[/tex]

The mass of salt exiting the tank per minute:

 [tex]\frac{5 * (5 + x)}{500}[/tex]

The increase per minute, Δ/dt, in the mass of salt in the tank is given as follows;  

[tex]\frac{\Delta}{dt} = \frac{x - 5 * (5 + x)}{500}[/tex]

The increase, in mass, Δ, after an increase in time, dt, is therefore;

[tex]\Delta = (x - 5 * (5 + x)/500)dt[/tex]

Integrating with a graphing calculator, with limits 0 at 10, gives;  

[tex]\Delta = (99X - 5)/10[/tex]

Substituting x = 1 gives:

[tex](99)( 1 - 5)/10 = 9.4 kg[/tex]

The concentration of the salt and water in the tank after 10 minutes = (Initial mass of salt in the tank + Increase in the mass of the salt in the tank)/(Volume of the tank). The concentration of the salt and water in the tank after 10 minutes:

[tex](5 + 9.4)/500 = (14.4)/500 = 0.288[/tex]

The concentration of the salt and water in the tank after 10 minutes = 0.288 kg/liter.

(b) With the added leak, we now have;

[tex]\frac{\Delta}{dt} = \frac{ (x - 6 ) (14.4 + x}{500} \\\Delta = \frac{(x - 6)(14.4 + x)}{500} dt[/tex]

Integrating with a graphing calculator, with limits 0 at 20, gives;

[tex]\int\limits^{20} _0 {\frac{(x - 6)(14.4 + x)}{500} dt}[/tex]

Where x = 1:

[tex]\Delta = 19.76(1) -3.456 = 16.304[/tex]

The increase in mass after an increase in = 16.304 kg. The total mass:

[tex]16.304 + 14.4 = 30.704 kg[/tex]

The concentration of the salt in the tank then becomes;

[tex]30.704/500 = 0.061408 kg/liter[/tex]

Learn more: brainly.com/question/11762787

encuentra el numero decimal equivalente a la fracción
7/10
198/100
85/100
45/100
1/4
3/2
3/8
1/9

Answers

7/10 = 0.7

198/100 = 1.98

85/100 = 0.85

45/100 = 0.45

1/4 = 0.25

3/2 = 1.5

3/8 = 0.375

1/9 = 0.11111111    ( goes on forever)        ( sigue para siempre )

Hope it Helps!

¡Espero eso ayude!

A rectangle has a length that is 4 ft more
than its width. What are the length and
width of the rectangle if the rectangle has
a perimeter of 48 ft?

Answers

Answer:

length = 14 width = 10

Step-by-step explanation:

48/4=12

10+10+14+14=48

Width = W = 10 ft

Length = L = 14 ft

P = perimeter = 48 ft

Explanation:


P rectangle = 2L+ 2W
L = W + 4
P = 48

Substitute into formula:
P rectangle = 2L + 2W
48 = 2( W + 4 ) + 2W
48 = 2W + 8 + 2 W
48= 4W + 8
48 - 8 = 4W
40 = 4W
W = 40/4 = 10
W = 10

The rectangle has a length that is 4 ft more than its width : L = W + 4

Substitute : L = 10 + 4 = 14
L = 14 ft

I hope this help!!!

Which statements are correct interpretations of this graph?
Select each correct answer. (multiple choice question)

A. 3 boxes are filled every 4 min.
B. 4 boxes are filled every 3 min.
C. 1.3 boxes are filled per minute.
D. 0.75 boxes are filled per minute.
(Graph down below)

Answers

Answer:

A

Step-by-step explanation:

[tex]\boxed{~ Hello!\; here's\; your \;answer!}[/tex]        

___________________________________________________________

                                                      [tex]\huge\boxed{A.}[/tex]

___________________________________________________________

           

A's Explanation...

The first point given is at 3 and 4. 3 is at "Boxes Filled" While 4 is at "Time (Min)". Therefore, your answer is A, 3 boxes are filled every 4 min.

___________________________________________________________

[tex]\boxed{Hope\;I\;helped!}\\\\\\\boxed{May\;I\;Have\;Brainliest?}\\\\\\\\\huge\boxed{Thanks,\;Plip.}[/tex]

___________________________________________________________

9
show questions
Carol feeds her bird the same amount of food every day. Over the past 7 days, her bag of bird
food has decreased by 1 cups.

Answers

Answer: 1/7 of a cup

Step-by-step explanation:

7x=1 x=food per day

divide 7 from both sides

7 / 7x = 1 /7

x = 1/7

The cost of Kerri’s meal was $10. If she wants to leave a 15% tip, how much should she leave? Use the percent proportion to help you ( part/whole = percent/100).

Answers

10x.15=1.50 she would leave $11.50
Answer: $1.5
Explanation: 10*0.15=$1.5
I hope this helps! :)


Jimmy practices hitting baseballs every day. His first time at bat, the baseball goes 10 feet. For every day he
practices, the baseball goes 6 feet farther. Write an equation to describe this situation.

Answers

Answer:

I think it is 10 + (6x)

Step-by-step explanation:

because he starts at ten and every day it adds 6 and x represents the number of days

Exit ticket help please​

Answers

Answer:

The answer is B

Step-by-step explanation:

I am learning the same thing somehow

Time sensitive mark best as brainiest


The density of a certain material is such that it weighs 4 kilograms

per cubic foot of volume. Express this density in ounces per cubic

meter. Round your answer to the nearest whole number.

Answers

Answer:

4986 ounces/m³

Step-by-step explanation:

1 kilogram = 35.274 ounces

1 cubic foot = 0.0283 cubic metre

We are converting kg/ft³ to ounces/m³

Hence:

4kg/ft³ × 35.274 ounces/ 1 kg × 1 ft³/0.0283m³

= 4985.7243816 ounces/m³

Approximately to the nearest whole number = 4986 ounces/m³

(-16t - 2)(t - 5) is the same as 10+78t-16t^2 but in factored form. Explain how you know,

basically help me convert the factored form into the standard form

Answers

Answer:

10+78t-16t^2

Step-by-step explanation:

(-16t-2)(t-5)

-16t × t= -16t²

-16t × -5=80t

-2 × t= -2t

-2 × -5=10

-16t²+80t-2t+10= -16t^2+78+10

Every Friday, Jesse puts $3 into his piggy bank. is it discrete or continuous?

Answers

Answer:

I would think continuous if she does it constantly every friday night

Step-by-step explanation:

Answer:

continuious

Step-by-step explanation:

2. A package delivery service has a truck that can hold 4200 pounds of cargo

and has a capacity of 480 cubic feet. The service handles two types of

packages: small, which weigh up to 25 pounds each and are no more than 3

cubic feet each; and large, which are 50 pounds each and are 5 cubic feet

each. The delivery service charges $5 for each small package and $8 for each

large package. Let x be the number of small packages and y be the number of

large packages in the truck. What is the maximum revenue per truck?

Answers

Answer:

$680

Step-by-step explanation:

Capacity of the truck: 4200 pounds and 480 cubic feet of cargo.

Small package: 25 pounds and 3 cubic feet each.

Large package: 50 pounds and 5 cubic feet each.

For x number of small packages:

25x pounds and 3x cubic feet

Let x = 8,

200 pounds and 24 cubic feet.

For y number of large packages:

50y pounds and 5y cubic feet

Let y = 80,

4000 pounds and 400 cubic feet.

Since delivery service charges $5 for each small package and $8 for each large package.

The maximum revenue per truck = ($5x + $8y)

                                                       = ( $5 x 8) + ($8 x 80)

                                                       = $680

Please help me with this equation. It’s solving systems of equations.

Answers

Moving downstream (with the current), the boat moves at a rate of (252 mi)/(12 h) = 21 mph. Upstream (against the current), it moves at a rate of (252 mi)/(84 h) = 3 mph.

When traveling downstream, the boat's speed is the sum of its own speed in still water and the speed of the current. It's the same going upstream, but the boat and current move in opposite directions. Let b and c denote these speeds, respectively. Then

downstream: b + c = 21 mph

upstream:      b - c = 3 mph

Adding these equations eliminates c and lets us solve for b :

(b + c) + (b - c) = 21 mph + 3 mph

2b = 24 mph

b = 12 mph

Now solve for c :

12 mph + c = 21 mph

c = 9 mph

Covert 45 1/2 % to a fraction

Answers

455/1000 should be the answer

I need some help on this problem.

Answers

Answer:

It would be <XWY & <UTW.

Xwy and str I believe

Find the cos of angle c
A.3/5
B.6/5
C.5/3
D.1

Answers

I think the answer would be 3/5

(-2,-4) and (6,7)
Need help show steps too

Answers

Answer:

Step-by-step explanation:

period

If f(1) = 1, what is f(3)?

Answers

Answer:

would be 3

Step-by-step explanation:

if 1 is 1 ,3 would be 3 ;-;

Identify the factored form of each polynomial. 4r + 11x + 6 4x + 10x + 6 11. 4r + 14x +6 (4x+3)(x+2) :: (x+3)(4x + 2) :: (2x+3)(2x + 2)​

Answers

Answer:

1) 4x^(2)+11x+6 Factored--> (4x+3) (x+2)

2) 4x^(2)+10x+6 Factored--> (2x+3)(2x+2)

3) 4x^(2)+14x+6 Factored--> (x+3)(4x+2)

Step-by-step explanation:

Factor: 4x^(2)+11x+6 (step by step)

1) Split the second term (11x) into two terms

      4x^2 + 8x + 3x + 6

2)Factor out common terms in the first two terms, then in the last two terms.

      4x(x + 2) + 3(x + 2)

3) Factor out the common term x + 2

      (x + 2) (4x + 3)

Repeat the above steps for similar questions!

A nursery owner buys 9 panes of glass to fix some damage to his greenhouse. The 9 panes cost ​$22.05 ​Unfortunately, he breaks 4 more panes while repairing the damage. What is the cost of another 4 panes of​ glass?

Answers

Answer: $9.80

Step-by-step explanation:22.05/9=2.45x4= 9.80

Answer:

$4.30

Step-by-step explanation:

Two panes of glass cost $4.30.

Explanation

First find the cost of one pane of glass (the "unit cost")

7 panes of glass cost

$

15.05

, so one pane of glass costs

15.05

÷7∩

$2.15 ← cost of one pane of glass

Then use that answer to find the cost of two panes of glass

If one pane of glass costs $2.15, then 2 panes cost 2× $2.15 $4.30 ← cost of two panes of glass

Answer:

Two panes of glass cost $4.30.

⚠️⚠️marking brainliest⚠️⚠️

It’s a math question :((

Answers

Answer:

slope: 3    y-intercept: 9

Step-by-step explanation: 19-10 is 9, and 6-3 is 3 9/3 is 3.

28-19 equals 9. 19-10 is 9, so 9 fills out that blank beside 10.

Answer:

slope is 3 and in the blank goes 1. and y intercepts line at y=1

Give 5 reasons explaining why math is your favorite subject.

Give 5 reasons why you dont like math.

Give 5 areas that math can help you now or in the future.

Answers

Answer:Math is important

Step-by-step explanation:

It could help you get into collage and get a good job and with that you could start your life.

Answer:

1.)

I love working with numbers

I love math because of what a challenge it is

I love math because I can become a engineer

I love math because I can also become a doctor with it

I love math because it is useful

2.)

I don't like math because of the word problems

I don't like math because it sometimes gets too easy

I don't like math because I usually have to help others

I don't like math because people call me a nerd

I don't like math because it makes me explain in words

3.)

when your in the store and it helps you with knowing how much your spending

lets you know about if the discount in the store is really good or bad

helps you with becoming certain things when you grow up

it will help you with most of your jobs

Will help others if you know it, you can share your knowledge

Step-by-step explanation:

brainlist pls :>


BRAINLIEST PLEASE JELP
What is the slope of a line perpendicular to the given line?


Answers

Answer:

4

Step-by-step explanation:

The perpendicular slope means opposite reciprocal

opposite: 1/4

reciprocal: 4

Answer:

The slope is undefined

Step-by-step explanation:

Rate me please

Solve for n 3m+2n=8 how do you do theseee?

Answers

Sub tract the 3m and you get 2n=8-3m then divide by 2 and you get n=8/2 - 3m/2 and that can be reduced to n= 4 - 3m/2

Harper Hospital treated 423 patients last week who were children, out of a total of 931 patients. The administrator calculates that they had 408 adult patients. Is the administrator's calculation reasonable? Estimate the number of adult patients by rounding the numbers to check the administrator's calculation.

Answers

Answer:

No, the administrator is wrong.

[tex]Adult = 500[/tex]

Step-by-step explanation:

Given

[tex]Total = 931[/tex]

[tex]Children = 423[/tex]

[tex]Adult = 408[/tex]

Solving (a): Is the administrator correct?

No, the administrator is wrong.

This is so because: when the number of children is subtracted from the total patient, the remaining number is not 408

Solving (b): Estimate the number of adults

By rounding up:

[tex]Adult = Total - Children[/tex]

Actual Figures

[tex]Adult = 931 - 423[/tex]

Round up

[tex]Adult = 900 - 400[/tex]

[tex]Adult = 500[/tex] -- approximately

When I graph the inequality symbol > should it be a open or closed
circle on the number line?

Answers

Answer:

It should be open.

Step-by-step explanation:

Hope this helped!

it should be opened i believe

What is the image of (-5, 6) after a reflection over the line y = -2

Answers

Answer:

I'm pretty sure it would be (5,6)

Step-by-step explanation:

Reflecting a point over the Y-axis would change the x-coordinate, but not the y-coordinate

PLease help with this question? I also need an explanation on how you got the answer

Answers

Answer:

25%

Step-by-step explanation:

1. there are 8 triangles

2. 2 twos

3. 2/8

4. 2/8=25%

What is the factored form of 5x-625x^4

Answers

Answer:

5x(-125x+1)

Step-by-step explanation:

im not completely sure but yee

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