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
Nitella [24]
3 years ago
8

The miles-per-gallon obtained by the 1995 model Z cars is normally distributed with a mean of 22 miles-per-gallon and a standard

deviation of 5 miles-per-gallon. What is the probability that a car will get less than 21 miles-per-gallon?
Mathematics
1 answer:
AlekseyPX3 years ago
4 0

Answer:

0.42074

Step-by-step explanation:

In this question, we are asked to calculate the probability that a car will get less than 21 miles per gallon.

This is P(x < 21)

z = 21-22/5 = -1/5 = -0.2

Therefore the probability of getting less than 21 miles per gallon will be;

P(x<21) = P (z < -0.2)

= 0.42074

You might be interested in
What is 2 1/3 + 3 1/3 -10
FinnZ [79.3K]

Answer:

Simplify the expression.

Exact Form:

−  13/ 3

Decimal Form:

− 4. ¯ 3

Mixed Number Form:

− 4  1/ 3

Hope this helps!

5 0
3 years ago
100/32 can someone help me how much would this be in fraction
kap26 [50]
Your answer would be 3 and 1/8
7 0
3 years ago
Find the sum of the following geometric series.<br><br> 8 + 1.6 + 0.32 + 0.064 +...
bazaltina [42]
Answer is : 1.2 geometric series
4 0
3 years ago
The weight of an object on mars is about 2/5 its weight on earth. how much would an 80 1/2 pound dog weigh on mars?
Paladinen [302]
Look at this equation it should help.

5 0
3 years ago
Read 2 more answers
Find the f^-1(x) and it’s domain
borishaifa [10]

Answer:

f^{-1}(x) = (x + 8)^2

x \ge -8

Step-by-step explanation:

Given

f(x) = \sqrt x - 8

Solving (a): f^{-1}(x)

We have:

f(x) = \sqrt x - 8

Express f(x) as y

y = \sqrt x - 8

Swap x and y

x = \sqrt y - 8

Add 8 to both\ sides

x + 8 = \sqrt y - 8 + 8

x + 8 = \sqrt y

Square both sides

(x + 8)^2 = y

Rewrite as:

y = (x + 8)^2

Express y as: f^{-1}(x)

f^{-1}(x) = (x + 8)^2

To determine the domain, we have:

The original function is f(x) = \sqrt x - 8

The range of this is: f(x) \ge -8

The domain of the inverse function is the range of the original function.

<em>Hence, the domain is:</em>

x \ge -8

3 0
3 years ago
Other questions:
  • 4. PLEASE HELP ME WITH THIS MATH HOMEWORK
    14·1 answer
  • Which list shows all the factors of 75?
    11·2 answers
  • Find the area of the trapezoid to the nearest tenth
    8·1 answer
  • Which function is represented by the graph?
    14·1 answer
  • Steven get paid $300 a month for his part-time job. Lunch cost him five dollars a day at school but Steven wants to save up at l
    10·2 answers
  • Which number produces a irrational number when added 0.25
    12·1 answer
  • I need heeeeeelp please and thank you :)
    5·1 answer
  • Identify the number that does not belong with the other three. Explain your reasoning.
    9·2 answers
  • Find the area of this triangle, round to the nearest tenth. I will give brainliest
    12·1 answer
  • 3. Twelve people work together: four of them are managers and eight of them are office workers. Two people are chosen at random
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!