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
photoshop1234 [79]
3 years ago
11

To find out how fast a tree grows, you can measure its trunk. A giant red oak's diameter was 248 inches in 1965. The tree's diam

eter had grown to 251 inches in 2005. Find the average rate of change in the diameter of the tree per year.
Mathematics
1 answer:
professor190 [17]3 years ago
8 0
Any times you see the phrase: "Rate of Change", or even sometimes just the word "Rate" think slope. 

The word slope is just a fancy word that means the rate of change. 

Rate of Change is just a fancy phrase meaning how much does something change over some amount of time. 
So in this case our rate of change will have the units of inches per year. 

Let's get to the problem at hand! 
We'll need to find slope / the rate of change (the two are interchangeable with each other).
Let's go over the formula for slope:

m = (y2 - y1) / (x2 - x1) 

First we will need to label each of the "coordinated points (the two numbers that go together in a pair)" with either (x1,y1) or (x2,y2). 

A Giant Red Oak's diameter in 1965 was 248 inches. Keep in mind time is ALWAYS going to be X in rate of change problems (and most all problems for that matter).  

(1965,248) 
(X1,Y2)

(2005,251)
(X2,Y2)

Plug in the values into the equation!
m = (y2 - y1) / (x2 - x1)
m = (251 - 248) / (2005 - 1965) 
m = (3) / (40)

Type that into a calculator to get a decimal value over 1.
m = 0.075 inches per 1 year. 
Or... 

m = 0.075in / 1 year
You might be interested in
Pls help me answer this :'(
anzhelika [568]

Answer:

I believe the answer is D :)

4 0
3 years ago
What is the value of p in the linear equation 24p + 12 – 18p = 10 + 2p – 6?
stira [4]

we have

24p+12-18p=10+2p-6

Group terms that contain the same variable, and move the constant to the opposite side of the equation

24p-18p-2p=10-6-12

Combine like terms

4p=-8

Divide by 4 both sides

4p/4=-8/4

p=-2

therefore

<u>the answer is</u>

the value of p in the linear equation  is -2

6 0
3 years ago
Read 2 more answers
C(a + b)- d = f, for a
Galina-37 [17]
Hopes this helps you out

3 0
3 years ago
Read 2 more answers
Can someone pls help me find this is important
Olenka [21]

Answer:

x=90° and y=35°

Step-by-step explanation:

to get x and y first you must find the middle angles based on the information you have so:

35+90+n=180° solve for n to get what the middle angles are (since they are vertical angles they are equal) so the middle angles are both 55 degrees

and then 180-x=that angle that is also on the line with x so we'll call it k

so k+55+y=180°

we can see that y equals 35* because I noticed that those are parallel lines on the outside of the triangle so 35* and y angles are congruent and y =35°

now 35+55+k=180°

solve for the angle next to x which we called k and it is 90°

so x=90° and y=35°

after all this math I realized that if they are parallel lines then we can just use that to figure it out so use the properties to find out that x=90° and y=35°

7 0
2 years ago
Read 2 more answers
A Russian mathmatician named Christian Goldbach came up with a theory that every even number can be written as the sum of two od
belka [17]
1 + 5 = 6
3 + 3 = 6

3 + 47 = 50
7 + 43 = 50
13 + 37 = 50
19 + 31 = 50
4 0
3 years ago
Other questions:
  • HELP ME PLEASE!!!!
    9·1 answer
  • A recipe for 4 dozen cookies calls for 3/4 cup of sugar how much sugar is needed to Make 2 dozen cookies
    12·1 answer
  • Un padre para estimular a su hijo para estudiar matemáticas le dice: por cada ejercicio que resuelvas bien te daré 7 € y por cad
    8·1 answer
  • What's ∣x−2∣=∣4+x∣????
    11·1 answer
  • (14 POINTSS+ BRAINLIESTT)<br><br> How are food and oxygen made during the process of photosynthesis?
    15·2 answers
  • Please please help me​
    12·1 answer
  • I NEED AN ANSWER ASAP!! IM MARKING THE FIRST ANSWER BRAINLIEST!
    8·1 answer
  • Miss Allen read for 3/4 of an hour less than the student who read the most. How long sis Miss Allen read for?
    9·1 answer
  • Pls help help help help help help ​
    9·2 answers
  • The area of a square is 28cm,what is the lenght of the square​
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!