A 3 x 3 x 4 cuboid can be cut into 3(3) (4) = 36 pieces of 1 x 1 cubes.
Out of the 36 pieces of 1 x 1 cubes, there are no 1 x 1 cube with the four
sides painted, there are eight 1 x 1 cubes with simply 3 sides painted, there
are twenty 1 x 1 cubes with only 2 sides tinted, there are 6 cubes with only 1
side painted and there are 2 cubes with no side painted.
The chance that the four sides of a randomly selected cube is painted is 0.
The likelihood that only 3 sides of a randomly selected cube is painted is 8 / 36 = 2 / 9.
The chance that only 2 sides of a randomly selected cube is painted is 20 / 36 = 5 / 9.
The likelihood that only 1 side of a randomly selected cube is painted is 6 / 36 = 1 / 6.
The probability that no side of a randomly selected cube is
painted is 2 / 36 = 1 / 18.
Thus, the expected value for the painted sides of a randomly selected cube is
given by 4(0) + 3(2 / 9) + 2(5 / 9) + 1(1 / 6) + 0( 1 / 18) = 2 / 3 + 10 / 9 +
1 / 6 = 35 / 18 = 1.94
solve for x −1/2(x+2)+11/2x=3
Nia is three years older than half Jordans age , if Jordan is eight years old , how old is Nia?
Answer:
7
Step-by-step explanation:
The outside diameter of a pipe is 5 and 7/32 inches. The walls of the pipe are 5/32 inches thick. What is the inside diameter?
Banks pay interest on savings accounts because
A. they can get more customers that way.
B. they want to encourage you to save.
C. they invest your money.
D. they're just very nice.
A rectangular plot of land has an area of 1/8 square mile. Its width is 3/20 mile.What is the length of the plot of land?
Order pairs (x,y) that is the solution to the equation.
5x-y=4
(x,y) =
A segment has endpoints ar (-2,3) and (7,9) how long is the segment
An important part of customer service responsibilities of a cable company relates to the speed with which trouble in service can be repaired. Historically, the data show that the likelihood is 0.75 that troubles in a residential service can be repaired on the same day. For the first 5 troubles reported on a given day, what is the probability that fewer than 2 troubles will be repaired on the same day?
Answer:
The probability that fewer than 2 troubles will be repaired on the same day is:
0.015576
Step-by-step explanation:
We have to use the Binomial function is n=order to calculate the probability of r successes out of the n-events.
We know that the probability of r success out of the n-events is given by:
[tex]P(X=r\ successes)=n_C_r\cdot p^r\cdot (1-p)^{n-r}[/tex]
where p is the probability of an success.
Here we have:
n=5 and r=0,1.
since we are asked to find the probability that fewer than 2 troubles will be repaired on the same day.
i.e we have to find:
[tex]P(X<2)=P(X=0)+P(X=1)[/tex]
Also p=0.75 ( since, likelihood is 0.75 that troubles in a residential service can be repaired on the same day )
Hence,
[tex]P(X=0)=5_C_0\cdot (0.75)^{0}\cdot (1-0.75)^{5-0}\\\\P(X=0)=1\cdot 1\cdot (0.25)^5\\\\P(X=0)=0.000976[/tex]
and
[tex]P(X=1)=5_C_1\cdot (0.75)^{1}\cdot (0.25)^{5-1}\\\\P(X=1)=5\cdot (0.75)\cdot (0.25)^4\\\\P(X=1)=0.0146[/tex]
Hence,
[tex]P(X<2)=0.000976+0.0146\\\\P(X<2)=0.015576[/tex]
Hence, the probability that fewer than 2 troubles will be repaired on the same day is:
0.015576
3a/(a+1)^2
Give the equivalent numerator if the denominator is (a + 1)³.
Answer:
3a(a+1)
Step-by-step explanation: for those who were confused on the other asnwer he gave a different veriation of this answer. however it is correct.
Brainliest plsss
A book had a length of 5 inches and a width of 8 inches. What is the perimeter of the book
386-123= estimate then find the difference
Using place value how to increase 2384598 by six million
12 tenths plus 9 tenths =21 tenths = ____ ones _____ tenths
Which of the following statements is true? 0.74 < 0.80 0.61 > 0.93 0.83 < 0.94 1.548 < 0.698
Among the given statements, the only true statements are
0.74 < 0.80 and 0.83 < 0.94.
How is this so?In both cases, the number on the left is less than the one on the right. Which makes the expression and or use of the less than symbol correct.
The greater than symbol (>) and the less than symbol (<) are used to compare two numbers or expressions to determine their relationship.
The greater than symbol (>) represents "greater than" and indicates that the number on the left side is larger than the number on the right side.
The less than symbol (<) represents "less than" and indicates that the number on the left side is smaller than the number on the right side.
For example, 5 > 3 means "5 is greater than 3," and 2 < 7 means "2 is less than 7."
Learn more about statements at:
https://brainly.com/question/27839142
#SPJ2
The sum of three numbers is 99. The first number is 9 more than the third. The second number is 4 times the third. What are the numbers?
The first number is 24, the second number is 60, and the third number is 15.
Explanation:Let's assign variables to represent the three numbers. Let x represent the third number. Since the first number is 9 more than the third, we can write the equation:
First number = x + 9
Since the second number is 4 times the third, we can write the equation:
Second number = 4x
Now, we can add the three numbers together, according to the given information:
(x + 9) + 4x + x = 99
Simplifying this equation, we get:
6x + 9 = 99
Subtracting 9 from both sides, we have:
6x = 90
Dividing both sides by 6, we find:
x = 15
So the third number is 15. Plugging this value back into the two other equations, we find that the first number is 24 and the second number is 60. Therefore, the three numbers are 24, 60, and 15.
Learn more about Solving equations here:
https://brainly.com/question/19297665
#SPJ3
michael wittry has been investing inhis roth IRA retirement account for 20 years. Two years ago his account was worth $215,658. after losing 1/3 of its origional value, it then gained 1/2 of its new value back, what is the current value of his roth IRA?
His current value is 215658 dollars.
How to calculate a fraction of amount of a total amount ?To calculate a fraction of amount of a total amount just multiply the given fraction to the total amount.
According to the given question
Michael wittry has been investing in his roth IRA retirement account for 20 years.
Two years ago his account was worth $215,658.
1/3rd of it's original value is
= (1/3) × 215658
= 71886 dollars.
∴ Remaining value is
=(215658 - 71886)
=143772 dollars.
After some time it gained half of it's new value back
∴ Half of this new value is
(1/2) × 143772
= 71886 dollars.
So , the current value is
(143772 + 71886)
=215658 dollars.
Actually his currect value of roth IRA is same as it was two years ago.
Learn more about fractions here :
https://brainly.com/question/10354322
#SPJ2
50 POINTS!!! DO NOT ANSWER JUST FOR THE POINTS!!! IF YOU DO, ALL OF YOUR EARNED POINTS WILL BE TAKEN~~~~~~~~~~~~~~~
Refer to the graph.
The function is increasing on the interval(s):
The function is decreasing on the interval(s):
The function is constant on the interval(s):
Please explain the steps you used.
solve (6-5x)/10-(2x+1)/5+x/3=2x/15
Which of the following is the inverse of the statement "If I like math, then I like science"? A. If I do not like science, then I do not like math. B. If I do not like math, then I like science. C. If I do not like math, then I do not like science. D. If I like science, then I like math
Answer:
Option C If I do not like math, then I do not like science
Step-by-step explanation:
we know that
To find the inverse of a conditional, negating both the hypothesis and conclusion of a conditional statement
In this problem we have
"If I like math, then I like science"
therefore
the inverse is
If I do not like math, then I do not like science
The length of a rectangle is 11 m greater than the width. The area is 42 m^2. Find the length and width.
Suppose a line has slope 4 and passes through the point (-2, 5). Which other point must also be on the graph?
A) (2, 6) B) (-1, 9) C) (-1, 1) D) (-6, 4)
round 2,412 to the nearest thousands
If you drive for 2 hours, at 60 miles per hour, you will have traveled 120 miles. this is a very common type of calculation, involving three quantities: distance, rate and time. if you know just two of these three quantities, you can always calculate the third. thus, if you want to know how much time it is going to take you to get somewhere, and you know that the distance is 120 miles and you will drive at a rate of 60 miles per hour, you can divide the 120 miles by the 60 miles per hour and obtain a time of 2 hours.
Is m=1/2 a solution of the equation 6m-8= -5
The arctic lion's Mane Jellyfish is one of the largest known animals. Its tentacles can be as long as 120 feet. Find how this length compares to your height. Round your height to the nearest foot. 120 feet is time as long as feet.
To solve this problem, we must first know your height. So assuming that your height is 5 feet. Therefore we can divide:
120 feet / 5 feet = 24
So that the answers in the blanks are:
120 feet is 24 times as long as 5 feet
kim has 3/4 pound servings of grapes. how many 1/8 pound servings can Kim make from his grapes
What is 10000 times 20000000
The 1998 team payroll of the Baltimore orioles was $68,988,134
A machine produces 240 bolts in 25 minutes. At the same rate how many bolts would be produced in 45 minutes
Is y=2x-8 and 2x-y=8 a dependent independent or inconsistent
Answer:
dependent
Step-by-step explanation:
[tex]y=2x-8[/tex] and [tex]2x-y=8[/tex]
First equation is already solve for y
LEts solve the second equation for y
[tex]2x-y=8[/tex]
Subtract 2x on both sides
[tex]-y=-2x+8[/tex]
Divide the whole equation by -1
[tex]y=2x-8[/tex]
After solving for y, both equation are same
When both the system of equation are same then it has infinite solutions.
They are said to be dependent.