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
umka21 [38]
3 years ago
10

Consider the continuous random variable x, which has a uniform distribution over the interval from 20 to 28. refer to exhibit 6-

1. the probability that x will take on a value between 21 and 25 is
Mathematics
1 answer:
tatyana61 [14]3 years ago
7 0
(25 -21)/(28 -20) = 4/8 = 1/2

Your probability is 1/2.
You might be interested in
Brooke saved the same amount of money each week for four weeks. She made this table to show how much money she saved.
Musya8 [376]

Answer:

In 10 weeks of time, Brooke would  earn $ 20.

Step-by-step explanation:

Here, according to the table:

The money saved in week 1   =  $ 2   =   $(1  x 2)

The money saved in week 2  =  $ 4   =  $ ( 2 x 2)

The money saved in week 3   =  $ 6  =  $ ( 3 x 2)

The money saved in week 4   =  $ 8 =   $ ( 4 x 2)

So, by the graph relation, we can see that:

The amount saved in n weeks = ( n x 2) dollars

So, the amount saved by Brooke in 10 weeks is:

Put n =  10, we get:

The money saved  = 2 n = 2 x 10 = $ 20

Hence, in 10 weeks of time, Brooke would  earn $ 20.

5 0
3 years ago
Help me asap plz !!!!!!!!!!!!!!!!!!!
frez [133]

Answer:

The answer will be A. 27f

6 0
3 years ago
Read 2 more answers
Find the angle between the given vectors to the nearest tenth of a degree. u = (8, 4), v = (9, -9)
Usimov [2.4K]

Answer:

<em>71.6 degrees </em>

Step-by-step explanation:

The formula for calculating the angle between two vectors is expressed as;

u.v = |u||v|cos theta

u.v = (8, 4).(9, -9)

u.v = 8(9)+4(-9)

u.v = 72-36

u.v = 36

|u| = √8²+4²

|u| = √64+16

|u| = √80

|v| = √9²+(-9)²

|v| = √81+81

|v| = √162

36 = √80*√162 cos theta

36 = √12960 cos theta

36 = 113.84 cos theta

cos theta = 36/113.84

cos theta = 36/113.84

cos theta = 0.3162

theta = arccos (0.3162)

<em>theta = 71.6 degrees </em>

<em>Hence the angle between the given vectors is 71.6 degrees </em>

7 0
3 years ago
Read 2 more answers
What is 2,750 plus 2,750?
jek_recluse [69]
2750plus2750equels5500
5 0
3 years ago
Read 2 more answers
What perfect square that is between 1 and 100 has 27 as one of its factors?
lesya692 [45]
81 because 81 is a perfect square and 27 times 3 =81
7 0
3 years ago
Other questions:
  • The square of five is
    14·1 answer
  • #2 , #4 , #6 , #8 , #10 please
    11·1 answer
  • What is 10 - x when x equals 4
    10·1 answer
  • 4. What is the system of equations that describes the following graph?
    12·1 answer
  • Given the diagram below, if the area of the shaded region is 59 inches squared, what are the dimensions of
    8·1 answer
  • 2х -3y=0<br> 2x = y+8<br> Sjejeheb
    15·1 answer
  • Wo similar triangles are shown on the coordinate grid:
    13·2 answers
  • Which expression is equivalent to
    9·1 answer
  • What is 42/3 simplified?
    14·2 answers
  • Help Me please . I want to know Square root of 169 and 144 and 625 . please man fast ​
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!