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
cupoosta [38]
3 years ago
11

Ericka observed the total variation in the water level over 6.2 years to be −13.64 mm. She compared this to the average annual t

rend, which shows the water level rising 1.8 mm/year. Remember, she used 6.2 years as her time period. What is the difference between how much average water levels rose and how much the water level fell in the part of the river she observed?
__________millimeters
Mathematics
1 answer:
vekshin13 years ago
8 0

Answer:

In the area that she observed, the water level fell 13.64mm over 6.4 years, for an average annual rate of change of: -13.64 ÷ 6.2 = -2.2 mm/ year.

You might be interested in
What is 10x10x30 ? + 50x20x12
Ilya [14]

Answer:

15,000

Step-by-step explanation:

10x10x30

10x10=100

100x30=3,000

50x20x12

50x20=1,000

1,000x12=12,000

3,000+12,000=15,000

4 0
3 years ago
Read 2 more answers
Jo's mother, Anne, is four times as old as Jo. In four years time, Anne will be three times as old as Jo. How old is Jo? (this i
pentagon [3]

Answer:

Jo's age = x = 8 years

Step-by-step explanation:

Let

Jo's age = x

Jo's mother, Anne's age = 4x

In four years time, Anne will be three times as old as Jo.

Jo's age =3( x + 4)

Jo's mother, Anne's age = 4x + 4

How old is Jo?

Equate Jo's age and his mother's age

3(x + 4) = 4x + 4

3x + 12 = 4x + 4

3x - 4x = 4 - 12

-x = - 8

Divide both sides by -1

x = 8

Therefore,

Jo's age = x = 8 years

8 0
3 years ago
Read 2 more answers
Please help will give brainliest
Ronch [10]

Answer:

A+B=180°(linear pair)

a+ 52°=180°

a=180°-52°

a=128° is your answer

6 0
3 years ago
Less expensive and cleaner than power plants that use fossil fuels, why are they not used on a larger scale?
guajiro [1.7K]
If your talking about solar power its because its just not practical solar power doesnt put out nearly enough power for us to be able to run widespread as of yet new and more efficient solar power inc
3 0
4 years ago
Read 2 more answers
Why is the applied effort only ½ of the weight to be lifted in the movable single pulley system?
LenaWriter [7]

<em>Answer: I would find that the anwser would be, It requires only ½ the effort to lift the load because there is more than 1 rope arm.</em>

<em />

Step-by-step explanation

Just took a test on this, I passed

3 0
3 years ago
Other questions:
  • What is the answer, Shelby made 5 quarts of juice for a picnic. How many cups of juice did shelby make?
    6·2 answers
  • Given that (x - 2) is a factor of this polynomial, use the Factor Theorem to find the value of a.
    9·1 answer
  • What is the answer to, -2x - 13 = -3x - 5​
    13·1 answer
  • J.9 Scale drawings: word problem Dwayne measured a house and its lot and made a scale drawing. The scale he used was 1 millimete
    8·1 answer
  • X2-6x-16=0<br> Solve for x
    12·1 answer
  • Pls help with these math questions. Don't just do it for points pls I really need help . 3 questions Multiple choice
    7·1 answer
  • I need help please.
    11·1 answer
  • PLEASE HELP<br> Which line is a linear model for the data?<br><br> THIS ISNT MY ANSWER
    7·1 answer
  • Please help Brainliest will be given makes no sense ASAP. Question below.
    5·1 answer
  • Find all real zeros of the function y= -9x - 1
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!