1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Troyanec [42]
3 years ago
8

What is the difference between x and dx?

Mathematics
1 answer:
N76 [4]3 years ago
8 0

This response is based upon your having had some background in calculus. "dx" is not introduced before that.

Take a look at the sample function y = f(x) = x^2 + 9. Here x is the independent variable; the dependent variable y changes with x.

Now, for a big jump: we consider finding the area under a curve (graph) between x = a and x = b. We subdivide that interval [a,b] into n vertical slices of area. Each of those slices has its own area: f(x)*dx, where dx represents the width of such subarea. f(x)*dx is the actual subarea. To find the total area under the curve f(x) between x= a and x = b, we add up all of these individual subareas between x = a and x = b. Note that the subinterval width is

b-a

dx = ---------- , and that dx becomes smaller and smaller as the number of

n subintervals increases.

Once again, this all makes sense only if you've begun calculus (particularly integral calculus). Do not try to relate it to earlier math courses.

You might be interested in
If a rectangle A has sides are three times the length of those rectangle B, how do the areas of the two rectangles compare?
Radda [10]

Answer:

The area of A is nine times the area of B.

Step-by-step explanation:

4 0
3 years ago
5(-5x - 2) = 10(-5x+4)
natulia [17]

Answer:

5(-5x - 2) =

-25x - 10

10(-5x+4) =

-50x + 40

-25x-10 = -50x+40

-25x = -50x + 50

25x = 50

x = 2

7 0
3 years ago
Read 2 more answers
(х-y)²-3(x-y) how do you factorise this equation?​
Kazeer [188]

Answer:

(x-y)(x-y-3)

Step-by-step explanation:

(x-y)² - 3(x-y)

take (x-y) common,

(x-y)(x-y-3)

4 0
3 years ago
The volume of a cube is 441cm3.<br> Work out the length of its side rounded to 1 DP.
Rainbow [258]

Answer:

volume of cube=441cm³

l³=441cm³

l=

\sqrt[3]{441}

length=7.6cm

3 0
3 years ago
What is the slope of the line that passes through (-2, 7) and (4, 9)?
prohojiy [21]
Slope=(9-7)/(4+ 2) = 1/3
3 0
3 years ago
Read 2 more answers
Other questions:
  • What is Eight less than two cubed, plus twenty divided by five ​
    13·1 answer
  • Suppose a basketball team had a season of games with the following characteristics: Of all the games, 60% were at-home games. De
    12·1 answer
  • Find two numbers whose sum is 49. If the greater is 4 more than 8 times the smaller. Solve
    9·2 answers
  • DOES ANYONE UNDERSTAND????
    15·1 answer
  • James ran 3 miles. How many yard
    13·2 answers
  • HELP IN GEOMETRY......
    15·1 answer
  • The length of one of two chords of a
    13·2 answers
  • Does this table represent a direct variation?
    6·2 answers
  • If you only have a 1/4 measuring cup and a recipe calls for 3 1/4cups of flour, how many 1/4 cups would you need to use?
    8·2 answers
  • Graph the solution to this inequality on the number line.<br><br> 1/4x − 2 &lt; − 1 1/2
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!