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
Please help! Will give Brainliest to first answer!
zaharov [31]

Answer:

A) 59

Step-by-step explanation:

2x+24 = 4x-94

2x+118 = 4x = 2x+2x

2x = 118

x = 118/2 = 59

8 0
3 years ago
Read 2 more answers
170,85,0,-85 find explicit formula for the arithmetic sequence
Lunna [17]
An= A1 + d(n-1)
An= 170 + (-85)(n-1)
An=170-85(n-1)
An= 170-85n+85

Answer: An=255-85n
3 0
2 years ago
Which expression is equivalent to 5(d+1)
timurjin [86]

the answer you are looking for is 5d+5

5 0
3 years ago
Read 2 more answers
PLEASE HELP WILL MARK BRAINLIEST
Romashka [77]

Answer:

A.The mean would increase.

Step-by-step explanation:

Outliers are numerical values in a data set that are very different from the other values. These values are either too large or too small compared to the others.

Presence of outliers effect the measures of central tendency.

The measures of central tendency are mean, median and mode.

The mean of a data set is a a single numerical value that describes the data set. The median is a numerical values that is the mid-value of the data set. The mode of a data set is the value with the highest frequency.

Effect of outliers on mean, median and mode:

  • Mean: If the outlier is a very large value then the mean of the data increases and if it is a small value then the mean decreases.
  • Median: The presence of outliers in a data set has a very mild effect on the median of the data.
  • Mode: The presence of outliers does not have any effect on the mode.

The mean of the test scores without the outlier is:

   \bar{x}=\frac{Total of the observations-Outlier value}{n-1} \\=\frac{(86*16)-72}{15} \\=\frac{1304}{15}\\ =86.9333

*Here <em>n</em> is the number of observations.

So, with the outlier the mean is 86 and without the outlier the mean is 86.9333.

The mean increased.

Since the median cannot be computed without the actual data, no conclusion can be drawn about the median.

Conclusion:

After removing the outlier value of 72 the mean of the test scores increased from 86 to 86.9333.

Thus, the the truer statement will be that when the outlier is removed the mean of the data set increases.

4 0
2 years ago
The figure has ____ lines of symmetry. A. 0 B. 4 C. 6 D. 8
Olenka [21]
A.) <span>Scalene Triangle has no Lines of S</span>ymmetry 
B.) <span>A </span>Square<span> (4 sides) </span><span>has </span>4 Lines of Symmetry
C.) <span>A </span>Regular Hexagon<span> (6 sides) </span>has 6 Lines of Symmetry
D.) <span>A </span>Regular Octagon<span> (8 sides) </span><span>has </span>8 Lines of Symmetry
7 0
3 years ago
Other questions:
  • The product of a number m and 1.7 is 6.63. What is the value of m? Drag and drop the correct number into the box so that the equ
    11·2 answers
  • Approximately 32,300 citizens of a country died in automobile accidents in 2015, express this toll in deaths
    10·1 answer
  • Round 84.066 to the nearest tenth
    8·2 answers
  • Help please Simplify (4^1/5)^5
    14·1 answer
  • Two-thirds of a number is 22. what is the number?
    6·1 answer
  • Need help with number 10 please
    11·1 answer
  • T-4t2+ 2t3 what is the degree of the polynomial
    7·1 answer
  • I need help this this
    6·1 answer
  • What is the difference between 4.091 and 2.174?
    9·1 answer
  • How to factorise x2+x+1 ​
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!