If there are 40 freight cars on the train and 14 of them are use for refrigeration, what percent of the cars are used for refrigeration?

After graphing  x⁵ – 4x³ + x² + 2, we have

x-intercepts : x ≈ 2.16, x = 1, x ≈ 1.75

local maximums : (-1.63, 10.47)

local minimums : (1.46, -1.68)

increasing : 1.46 < x < -1.63

decreasing : -1.63 < x < 1.46

In discrete mathematics, and mοre specifically in graph theοry, a graph is a structure amοunting tο a set οf οbjects in which sοme pairs οf the οbjects are in sοme sense "related". The οbjects cοrrespοnd tο mathematical abstractiοns called vertices (alsο called nοdes οr pοints) and each οf the related pairs οf vertices is called an edge (alsο called link οr line).

Typically, a graph is depicted in diagrammatic fοrm as a set οf dοts οr circles fοr the vertices, jοined by lines οr curves fοr the edges. Graphs are οne οf the οbjects οf study in discrete mathematics.

After graphing  x⁵ – 4x³ + x² + 2, we have

x-intercepts : x ≈ 2.16, x = 1, x ≈ 1.75

local maximums : (-1.63, 10.47)

local minimums : (1.46, -1.68)

increasing : 1.46 < x < -1.63

decreasing : -1.63 < x < 1.46

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Complete correct question:

Answer:

8 yards. Trust me. I love mental math.

Step-by-step explanation:

Answer:

Option 3. r=800m

Step-by-step explanation:

From the table we can see that with each addition of a month the cost raises 800 dollars. (9,10).

Answer:

The third one.) r = 800m

Step-by-step explanation:

800m = 800 × m

Ex. 800 × 2 = 1,600

800 × 5 = 4,000

and so on...

the answer is 54 take care man

Answer:

Given that: The perimeter of the equilateral triangle is 42 inches. Side of the triangle=Perimeter/3=42/3=14 inches. The height of the triangle is 12 inches

Step-by-step explanation:

12 inches hope it helps

Answer:

Step-by-step explanation:

m

a

t

h

w

a

y

Answer:

answer is 3 11/12

Step-by-step explanation:

1 4/6 =10/6

2 1/4=9/4

when adding fractions that are do not share a common denominatour you have to find a common multiple

which in this case is 12

so 9/4 timesed the top and the bottom by 3 gives you 27/12

and 10/6 timesed the top and bottom by 2 gives you 20/12 and then you add the the nominators which is 20+27 which then gives you 47/12 and then to change it back to mixed fraction you will get 3 (wholes) and 11/12 (fraction)

Hope this helps xx

Answer:

Step-by-step explanation:

Sia ran

11*5=55 miles

2 days off

55 miles/7days=7.85 miles/day average

yes, she did ran at least 6 miles per week

Answer:

21

Step-by-step explanation:

thats it 21

Answer:

Yes

Step-by-step explanation:

Step-by-step explanation:

5x + 8 = 3x + 9

5x-3x=9-8

2x=1

x=1/2

Answer:

Step-by-step explanation:

[tex]\huge\text{Hey there!}[/tex]

[tex]\huge\textsf{Your GUIDE}\huge\downarrow[/tex]

[tex]\large\text{The DISTRIBUTIVE FORMULA is......}\\\large\text{a(b + c)}\\\large\text{a(b) + a(c)}}\\\large\text{a(b) = ab}\\\large\text{a(c)=ac}\\\large\text{= \underline{ab + ac}}[/tex]

[tex]\text{Now lets SOLVE for your QUESTION, shall we?}}[/tex]

[tex]\large\text{\bf{9(2n +1)}}\\ \large\text{\bf{9(2n) +9(1)}}\\\arge\text{\bf{9(2n)=18n}}\\\large\text{\bf{9(1)=9}}\\\large\text{\bf{= \underline{18n+9}}}}[/tex]

[tex]\boxed{\boxed{\bold{Answer: 18n +9}}}\huge\checkmark[/tex]

[tex]\large\textsf{Good luck on your assignment and enjoy your day!}[/tex]

~[tex]\frak{Amphitrite1040:)}[/tex]

Answer:

7

Step-by-step explanation:

x^2=49

x=7

Answer:

I'm guess that the parentheses looking sign means absolute value so the answer should be the first choice. (-6, and -2)

Step-by-step explanation:

-6 plus 4 = -2 but since we are doing absolute value then the absolute value of -2 is 2.

-2 plus 4 = 2 So, this is also correct because the answer is 2.

Hope this helps! :)

The solution is represented by  the first number line, which has the solutions x=-6 and x=-2.

A number line is a pictorial representation of numbers on a straight line. In elementary mathematics, a number line is a picture of a graduated straight line that serves as visual representation of the real numbers. Every point of a number line is assumed to correspond to a real number, and every real number to a point.

here, we have,

We have an absolute value function for the equation.

This means that we should have two different solution in the real number line.

As the equation is

|x + 4| = 2

when we clear out the absolute value, we will have two possible solutions:

x + 4 = 2

and

-(x + 4) = 2

now we clear x from both equations

x + 4 = 2 ⇒ x = -2

-(x + 4) = 2 ⇒ x = -6

Then, we have that x=-2 and x=-4 are the solutions for the equation, and therefore the number line that represents the solution is the first one, where the points -6 and -2 are highlighted.

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Answer:

0.1%

Step-by-step explanation:

:D

Answer:

Step-by-step explanation:

A = 48/20

B = 20/48

Answer:

152.238095

Step-by-step explanation:

Answer:

The cost of 4 erasers is $5.88.

Step-by-step explanation:

$4.41 / 3 = 1.47

One eraser costs $1.47.

Multiply by 4 to find the cost of 4 erasers

$1.47 * 4 = $5.88

Answer:

It's D

Step-by-step explanation:

Answer:

8/12

2/3

Step-by-step explanation:

If correct plz plz mark as brainliest

thank you

19NBoli

:)

Answer:

x the amount of the percentage of the tax divided by the amount for the juice

Answer:

0.44

Step-by-step explanation:

Answer:

Mirror across the y axis, then mirror across the x axis

Step-by-step explanation:

Answer:

It is false

Step-by-step explanation:

Because 2+7+4x3 2 =33 not 6

2+7+24 =6

33=6

Answer:

your mum, lol

Step-by-step explanation:

someone already did it might as well put random comment

Answer:

x = 9

-1 + 14x = 12x + 17

Answer:

x = 9

Step-by-step explanation:

-1 + 14x = 12x + 17

Rearrange terms.

14x - 1 = 12x + 17

Add 1 to both sides of the equation.

14x - 1 + 1 = 12x + 17 + 1

Simplify.

14x = 12x + 17 + 1

14x = + 12x + 18

Subtract 12x from both sides of the equation.

14x - 12x = + 12x - 12x + 18

Simplify.

2x = + 12x - 12x + 18

2x = 18

18 ÷ 2 = 9

x = 9

Answer:

6d-30

Step-by-step explanation:

6(d-5)

6d-30             distributive property

Answer: .6 ft. every hour

Step-by-step explanation: when you add the amount of feet added each hour you get .6 ft.

Answer:

4cm

Step-by-step explanation:

the opposite side is opposite the  theta symbol

Answer:

490-15x=310

Step-by-step explanation:

x Is the amount of weeks

Answer:

for #1: 70x = y

for #2: 70x + 100 = y

Step-by-step explanation:

you pay $70 for x amount of time with will equal your total therefore it's 70x = y

if you have to pay a one-time fee of $100.00 then you have to add that to your equation giving you 70x + 100 = y

hope this is right

hope it helps too :)