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
Lana71 [14]
3 years ago
13

Someone lent me a book and they told me they left something inside and the picture attached shows the note that they left for me

and I know what the text means but I have no clue what the equation means so can anyone help?

Mathematics
1 answer:
son4ous [18]3 years ago
6 0

Answer:

'∂' -- means a partial differential

'Δ' -- means a change in some variable.

'σ' --means 'sum' and 'deviation'.

The text says something about the world turning so maybe the equation has something to do with that? Maybe it is the equation for the earth's rotation. Sorry I can't find anything else, but I hope this helps a bit!

You might be interested in
Apply the Pythagorean Theorem to find the distance between points A and B.
irinina [24]

Answer:          

  Properties of a right tangle can be created in  a Coordinate Plane

  Distance between two points A and B are shown as below

Step-by-step explanation:

Find distance between two point using Pythagorean Theorem.

Properties of right triangles and creating right triangle as a coordinate Plane.

Suppose two point are drawn in triangle containing value of  (-2 , 4 ) and (-2, -2)

then

In (-2 , 4 ) and (-2,-2)

taking y-values that is  4 and -2

find difference between them such as

    4-(-2) = 6

Distance is (-2,4) is 6 unit from (-2,-2)

We can also find unit length of A and B

Side A:   (-1, 2) and (3,2)

      3-(-2)  = 5

side A is 5 unit in length

Side B : (-2,2) and (-2,-1)

      2 - (-1) = 3

Side B is 3 unit in length

7 0
3 years ago
Read 2 more answers
-10d 4 e 3 f 5 ÷ 15d 2 e 2 f
Stolb23 [73]
The answer is going to be 5f + 2e <span> hopes this helps :) 
</span>
6 0
4 years ago
Item 18
nasty-shy [4]

The first thing we have to do is to calculate the midpoint of the min and max speeds. We are given that the min and max is 74 and 95 respectively. The midpoint is then calculated as (max+min) / 2. Therefore:

midpoint = (74 + 95) / 2 = 84.5

 

Next, we calculate the distance from the midpoint to the endpoint by doing subtraction. Therefore:

min endpoint: 84.5 – 74 = 10.5

max endpoint: 95 – 84.5 = 10.5

 

Now we know that v minus the midpoint will equal the distance such that:

| v - midpoint | = distance.

To our problem,

| v – 84.5 | = 10.5

7 0
3 years ago
Can you answer these questions for me please!
Leni [432]

a) 95

b) 25 : 1

a) <u>1</u><u> </u> X 760

8

= 95

b) 450 : 18

255 : 9

25 : 1

6 0
3 years ago
Read 2 more answers
X/3 +17 less than or equal to 15
Sliva [168]

x \leqslant  - 6

x/3+17is less than or equal to 15

x/3is less than or equal to 15-17

xis less than or equal to -6

5 0
3 years ago
Other questions:
  • Calculate the surface area of the following shape
    12·2 answers
  • On this chapter quiz for this course you can study for up to four hours If you don't study at all you will get a 70. One hour wo
    6·1 answer
  • A train has 100 passenger seats. Tickets for the train cost $200 per passenger when every seat is sold. When there are unsold se
    14·1 answer
  • A car travels at an average speed of 48
    13·2 answers
  • What is an expression for the distance between the origin and a point P(x,y)
    15·1 answer
  • F(x)=(x+7)^3 expand the function
    8·2 answers
  • Please help me out. Don't answer if you don't know the answer. NO LINKS!!
    7·1 answer
  • PLEASE HELP ME!
    14·2 answers
  • A roller coaster's height is given by the equation h= -0.46t^2+ 5t +75, where t represents the time in seconds. How long will it
    7·1 answer
  • PLSSS HELP I’LL GIVE BRAINIEST
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!