what is the purpose of the dx in the integral ∫2x dx?

Answers

Answer 1

Answer:

[tex]dx[/tex] denotes an infinitesimal displacement along [tex]x[/tex]

Step-by-step explanation:

The integration refers to the antiderivative of a function. The inverse process of differentiation is the integration.

The integration is used to find the volume and area under the curve.

In ∫ [tex]2x\,\,dx[/tex]

∫ denotes the sign of integral,

[tex]dx[/tex] denotes an infinitesimal displacement along [tex]x[/tex],

[tex]2x[/tex] is the part to be integrated.


Related Questions

Each wheel on Nina's car has has a diameter of 18 inches.Which expression could be used to find the circumference of the wheel?

Answers

Answer:

56.548667764616276

Step-by-step explanation:

Multiply the diameter by pi.

C= 18 x 3.14159265

Hope this helps!

Find the product of (x2 + 2x −3)(4x2 − 5x + 6). (2 points) a 4x4 + 13x3 − 16x2 + 27x − 18 b 4x4 + 3x3 − 28x2 + 27x − 18 c 4x4 + 3x3 − 16x2 + 3x − 18 d 4x4 + 3x3 − 16x2 + 27x − 18

Answers

Answer:

D

Step-by-step explanation:

We want to find:

[tex](x^2+2x-3)(4x^2-5x+6)[/tex]

Distribute:

[tex]=(x^2+2x-3)(4x^2)+(x^2+2x-3)(-5x)+(x^2+2x-3)(6)[/tex]

Distribute:

[tex]=(4x^4+8x^3-12x^2)+(-5x^3-10x^2+15x)+(6x^2+12x-18)[/tex]

Rearrange:

[tex]=(4x^4)+(8x^3-5x^3)+(-12x^2-10x^2+6x^2)+(15x+12x)+(-18)[/tex]

Combine like terms:

[tex]=4x^4+3x^3-16x^2+27x-18[/tex]

The answer is D.

Alamo Cola manufactures a soft drink made with 0.25% peach juice concentrate. What is this percent expressed as a fraction
A. 1/4 and 0.25
B. 1/4 and 0.0025
C.1/40 and 0.025
D. 1/400 and 0.0025​

Answers

Answer:

A

Step-by-step explanation:0.25 is a quarter so 1/4 is also a quarter so you juts add the subcalculus and you get the sum

Find the minimum value for the following quadratic equation.
f(x) = 3x2 + 6x-1

Answers

Answer:

(-1,-2)

Step-by-step explanation:

Maybe

The blue dot is at what value on the number line?

Answers

I think it’s 4 if the lines are going up by 2

Answer: 4 since it’s going down by 4.

Plz help me :) dropdowns
1) vailid/ not valid
2) unbiased/biased
3)appropriate/ inappropriate

Answers

Answer:

1

Step-by-step explanation:

I need help plzzzzzzzzzz

Answers

Answer: The perimeter of the triangle is 33b - 8

Step-by-step explanation:

A firm’s liquidity level increases when

Answers

A company's liquidity ratio is a measurement of its ability to pay off its current debts with its current assets. Companies can increase their liquidity ratios in a few different ways, including using sweep accounts, cutting overhead expenses, and paying off liabilities.

please help and good night​

Answers

Answer:

(7) n = ⁴/₃

(8) x = -5

(9) d = ³/₂

(10) v = -20

Step-by-step explanation:

(7) [tex]n-\frac{8}{9} = \frac{4}{9}[/tex]

[tex]n-\frac{8}{9} = \frac{4}{9} \\\\Collect \ similar \ terms \ together\\\\n = \frac{4}{9} + \frac{8}{9} \\\\n = \frac{4+8}{9} \\\\n = \frac{12}{9} \\\\n = \frac{4}{3}[/tex]

(8)

[tex]\frac{3}{2} + \ x = -\frac{7}{2}\\\\collect \ similar \ terms \ together\\\\x = -\frac{7}{2} -\frac{3}{2} \\\\x = \frac{-7-3}{2} \\\\x = \frac{-10}{2} \\\\x = -5[/tex]

(9)

[tex]\frac{6}{5} = \frac{d}{(\frac{5}{4} )} \\\\cross \ and \ multiply\\\\5d = 6(\frac{5}{4} )\\\\5d = \frac{30}{4} \\\\d = \frac{30}{4\times 5} \\\\d = \frac{30}{20} \\\\d = \frac{3}{2} \\\\d = 1\frac{1}{2}[/tex]

(10)

[tex]-\frac{1}{8} v = \frac{5}{2} \\\\\frac{-v}{8} = \frac{5}{2} \\\\cross \ and \ multiply\\\\-2v = 40\\\\-v = \frac{40}{2} \\\\-v = 20\\\\v = -20[/tex]

equations with variables on both sides that makes the answer x=9

Answers

Answer:

x = 12

Step-by-step explanation:

Answer:

2x=18

Step-by-step explanation:

Juan want to eat fewer than 800 calories at lunch the table shows the menu at the school cafeteria with the calorie total listed for each item two different meals options for Juan to choose lunch then find the cost for each meals

Answers

Answer:

Can you put the picture

Step-by-step explanation:

A train travels at a speed of 65 miles per hour. How long did it take the train to travel 227.5 miles?

Answers

Answer:

3.5 hours

Step-by-step explanation:

227.5÷65=3.5

Please help this is due today!

Calculate the unknown missing angle measures.

Do not answer this with one answer ,blank, or a ridiculous answer.... this is serious please.

Answers

Answer:

For ABC A= (-3,3) B= (0.2) and C= (-3,1)

For DFE D= (0,6) F= (2,6) and E= (2,3)

Step-by-step explanation:

I believe tha name of a sequence of transformation will be translation and the Reflection

Hope this Helped

Which expression represents "9 more than x"?
A. x−9
B. 9⋅x9
C. 9−x
D. x+9

Answers

D is the answer.. it would be x+9

Answer:

C. 9 - x

Step-by-step explanation:

We are given a sentence expression : 9 more than x.

Let's go over all the expressions and what they say as a setnence.

A. x - 9

This would be x more than 9, since the original number of x is way higher than 9. Making this answer incorrect.

B. 9 * x^9? (I am assuming)

This would be 9 times x, not even the correct property.

C. 9 - x

This would be 9 more than x, though you could say it's addition, the value of 9 is more than x, hence making it subtraction.

D. x + 9

This would be 9 plus x, no number has an official value than another.

Find the value of x.

Answers

Answer:

I think the answer is x=120

Which of the following represents a valid function

Answers

Answer:

Step-by-step explanation:

The first and third are valid functions. The second is not a function as there are two different y values for the same x value. It fails what is called the ‘vertical line test’.

Multiply (x-1)(x^3+4x^2+4x-1) and combine like terms. Show your work.

Answers

Answer:

I love algebra anyways

The ans is in the picture with the  steps how i got it

(hope this helps can i plz have brainlist :D hehe)

Step-by-step explanation:

What is the equation of the exponential curve that passes through the points (0,3) and (5,96)?

Answers

Answer:

M=93/5

Step-by-step explanation:

The triangles shown are similar. Which side of triangle PQR corresponds to side LN in triangle MNL? Triangle L N P. Side L N is 12, N M is 10, M L is 14. Triangle P R Q. Side P R is 28, R Q is 24, Q P is 20. RQ PQ PR LM

Answers

Answer:

The side on triangle PQR that corresponds to side LN in triangle MNL is side QR.

Step-by-step explanation:

Triangle PQR is a dilated version of triangle LMN, specifically a dilation of 2, since LN = 12, the corresponding side to it on triangle PQR is side QR because it is twice as big as side LN, which is the dilation value for converting triangle LMN to triangle PQR.

The side of triangle PQR corresponds to side LN in triangle MNL will be QR.

What are similar triangles?

Similar triangle are those which have two pairs of interior corresponding angles are equal or two pairs of corresponding sides are in proportion.

We have,

Two triangles as shown in the given figure,

Now,

Using triangle similarity rule,

i.e.

Sides are in equal proportion,

i.e.

[tex]\frac{LM}{PR} =\frac{MN}{PQ} =\frac{LN}{QR}[/tex]

So,

Put values of sides ,

[tex]\frac{14}{28} =\frac{10}{20} =\frac{12}{24}[/tex]

i.e.

[tex]\frac{1}{2} =\frac{1}{2} =\frac{1}{2}[/tex]

So,

All sides in proportion according to the question,

Now,

The side which is in proportion to side LN is QR.

Hence, we can say that the side of triangle PQR corresponds to side LN in triangle MNL will be QR.

To know more about similar triangle click here

https://brainly.com/question/12460919

#SPJ2

Find the volume of a rectangular prism with dimensions 21 in. by 20 in. by 19 in., to the nearest hundredth cubic foot

Answers

Answer:

The dimensions of a rectangular prism are 21 in. by 20 in. by 19 in.

To find:

The volume of the rectangular prism.

Solution:

Let the length, breadth and height are 21 in, 20 in and 19 in respectively.

Volume of the rectangular prism is

[tex]V=Length\times Breadth\times Height[/tex]

[tex]V=21\times 20\times 19[/tex]

[tex]V=7980[/tex]

Therefore, the volume of the rectangular prism is 7980 cubic inches.

After 4 tests,Alex average score was 65.After the 5th test his average score increased by 5 .How much did he score in his 5th test?​

Answers

Answer:

329 вот правильный ответ

What is the y intercept for y=6x+7/2

Answers

7/2


y = mx + b
M is 6
B is 7/2

Matthew has a loyalty card good for a discount at local hardware store. The item he wants to buy is priced at $13 before discount and tax. After the discount and before tax a price is $12.48. Find the percent discount.

Answers

Answer:

Step-by-step explanation:

Your answer

Old price = 13$

New price = 12.48$

DISCOUNT price = 0.52$

Discount rate = 0.52/13 * 100= 4%

Mark it as Brainlist answer. Follow me.

When chords intersect in a circle, the vertical angles formed intercept congruent arcs.

Answers

Answer:

sometimes

Step-by-step explanation:

if those are the options you have then that's the correct answer

A floor shaped like a square has a perimeter of 100 feet.what is the area of the floor in square feet?

Answers

Answer:

625

Step-by-step explanation:

Square has four sides. 100/4=25

Area=L×W

25×25=625 square feet

In each bag 1/4 pieces of fruit were raisins. 1/2 were bananas. There were 48 slices of dried banana. The remaining pieces of fruit was raspberries. How many pieces of raisins and dried raspberries were there in each bag

Answers

Half of 48 is 24. So 1/4 of 24 is 12.
You had 12 raisins & 12 raspberries=24
the answer for this problem is 24

A restaurant bought 5 pounds of salmon for $42.50. How much would 7 pounds of salmon cost? *

Answers

Answer:

59.5

Step-by-step explanation:

42.50/5=8.5

1 lb=8.5

7lb=7*8.5=59.5

Find the value of the variable. A
610
790

Answers

Answer: Allie made a 240- mile trip in just 4 hours.

Step-by-step explanation:

enter a negative number that is greater than -10.


btw this is iready

Answers

Answer:

5 6 7 8 9 10  All the positive number are grater than -10 but if it askes for negative you would you -5 -6 -7 -8 -9

Step-by-step explanation:

With all numbers, whether they are negative, zero or positive: A number is greater than another when it is to the right on the number line. Conversely a number is less than another when it is to the left on the number line.

Step-by-step explanation:

Write the product (x-7)^2 in standard form

Answers

Answer:

x^2-14x+49

formula:

a^2-2ab+b^2

if

(a-b)^2

substitute values and

Wham bam yes ma'm

the answer is x^2-14x+49 for this problem
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