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
Pavlova-9 [17]
3 years ago
7

The average domestic economy car gets around 30.9 miles per gallon (MPG) with a standard deviation of 2.88. Suppose domestic man

ufacturers all vow to increase fuel economy over the next 2 years. If successesful, 2.9 is added to every observation in the dataset. What is the new mean
Mathematics
1 answer:
Sedbober [7]3 years ago
6 0

Answer:

33.8

Step-by-step explanation:

Given that :

Initial Average miles per gallon = 30.9

Uniform value added to each data in the set = 2.9

The mean value of a dataset shifts by the uniform value added to each value in the dataset. This is always true whenever a uniform value is added to values across a dataset irrespective of the number of samples.

Hence

Initial mean. + uniform Value

30.9 + 2.9 = 33.8

You might be interested in
If h(x) is the inverse of f(x), what is the value of h(f(x))?<br> оо<br> 0 1<br> ООО<br> o f(x)
mart [117]

Answer:

x.

Step-by-step explanation:

If h(x) is the inverse of f(x) them h(f(x)) = x.

7 0
4 years ago
After m months, the height of a plant is 10+3m millimeters. How tall is the plant after eight months? Three years?
Oksanka [162]
Why not start out by writing a linear relationship for the plant height?

h(m) = 10 + 3m, where h is the height in mm and m is the time in years, starting from zero (0).

After 8 months, the plant height is h(8) = 10 mm + 3(8) mm, or 34 mm.

After 3 years (36 months), the plant ht. is h(36) = 118 mm.
4 0
3 years ago
Please help!!
Dahasolnce [82]

Answer:

y=22/3

x=53/3

Step-by-step explanation:

the first number is x

second number is y

x=2y+3

x+y=25

and solve system of equation

so

x=-y+25

-y+25=2y+3

3y=22

y=22/3

x=53/3

3 0
2 years ago
Pls I need the answer and explanasion
Y_Kistochka [10]

Answer:

=no of children who like oatmeal/toatal population*100%

=15/50*100%

=(1500/50)%

=30%

Step-by-step explanation:

3 0
3 years ago
7 times the sum of x and 5
kobusy [5.1K]
The answer is 7(x+5) ive had the exact question before!! Hope i helped u!!!!
7 0
3 years ago
Read 2 more answers
Other questions:
  • What is y-value when x equals -12? y =-200 - 6(x)
    11·1 answer
  • Introduction to Circles
    14·1 answer
  • A large company put out an advertisement in a magazine for a job opening. The first day the magazine was published the company g
    14·1 answer
  • During game play, Juan threw 2 darts onto the board.
    8·1 answer
  • Please help! Thanks in advance!!
    7·1 answer
  • Heeeelp plsssssss :)
    12·2 answers
  • Find the slope of the line that contains the<br><br>point (4, −9) and has a y intercept of 2.
    10·1 answer
  • Please help ASAP math
    14·2 answers
  • Which of the following represents the graph of the equation y = 5x – 4? if ur quick u get brainlyist
    15·2 answers
  • Cuanto es un numero elevado a la veinte?​
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!