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
Dominik [7]
3 years ago
10

Can someone help me with part b?

Mathematics
1 answer:
Tema [17]3 years ago
3 0

Step-by-step explanation:

the average rate of change of a function f in an interval [x-low, x-high] is

(f(x-high) - f(x-low)) / (x-high - x-low)

the year 2000 means t = 2000-1980 = 20

the year 2015 means t = 2015-1980 = 35

so, we have

(A(35) - A(20)) / (35 - 20)

((-0.6(35)² + 37.2×35 + 243) - (-0.6(20)² + 37.2×20 + 243)) / 15

((-735 + 1302 + 243) - (-240 + 744 + 243)) / 15

(810 - 747) / 15 = 63/15 = 4.2

the average change rate between 2000 and 2015 is 4.2.

that means that the use of nuclear energy in the USA increased by 4.2 billions of kilowatt hours per year during that period.

You might be interested in
Which of the following options have the same value as 70% of 80?
snow_tiger [21]
56 is the answer so it's A, C and E.
7 0
3 years ago
Read 2 more answers
The sum of 2fifteens and 10 fifteens​
Mkey [24]

Answer:4/5

Step-by-step explanation:

2/15 + 10/15=12/15=4/5

easy right?

5 0
3 years ago
What Is the Title<br> of This Picture?
dem82 [27]
Please post the picture.
3 0
2 years ago
Help me please with this problem
Svetllana [295]
These are hexagonal prisms. If you count the sides, there are six of them. Hexagons have 6 sides
5 0
3 years ago
Read 2 more answers
Help please<br><br><br><br> pleaseeee i dont understand<br><br><br> :(
amid [387]
#1
Irrational numbers are numbers with infinite decimals values that are not repeating (ex. Pi 3.14159265....). Whole numbers don’t have decimal values in the first place, so all whole numbers are therefore rational.

Keep in mind that just because a number has decimal values doesn’t mean it’s irrational (ex. 4.5 is a rational number). It needs to have infinite non-repeating decimal values to be irrational.
7 0
3 years ago
Other questions:
  • A population increases 3% each year. If the city is now 5 million, what will the population be in 5 years?
    12·1 answer
  • The ratio of the perimeter of square RSTU to the perimeter of square WXYZ is 1 to 3. The area of square RSTU is 36 square inches
    12·2 answers
  • On his last history test, Marty only missed one question. He received -3 points for that question. His friend Julie forgot to st
    6·1 answer
  • How to cheat using my math lab ?
    14·2 answers
  • A school is keeping track of the number of tickets remaining for its year-end festival. The table shows the number of sales for
    11·2 answers
  • The set of numbers that includes the whole numbers and their opposites is called the set of...?
    11·2 answers
  • I NEED HELP! HAVE TO TURN IN TODAY!
    7·1 answer
  • natalie is baking cupcakes. Each cupcake needs ½ a cup of sugar. How many cupcakes can she make if she has 7 ⅓ cups of sugar? ​
    11·2 answers
  • I will give brainliest to whoever helps me with this question. Also, if you could please explain to me how you solved it I would
    7·1 answer
  • Factor: -49x^2+ 7y^2 + 133
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!