Answer:
Check the explanation
Step-by-step explanation:
a) Probability that Box #1 is empty is computed here as:
= Number of ways to distribute each of the the n balls in remaining (n - 1) boxes / Total ways to distribute n balls into n boxes
= \(\frac{(n-1)^n}{n^n} = (1 - \frac{1}{n})^n\)
This is the required probability here.
b) Probability that only 1 box is empty is computed here as:
= Number of ways to choose one of the remaining (n - 1) boxes such that it will have 2 balls * Number of ways to select 2 balls of that box* permutation of remaining (n - 2) balls into (n - 2) boxes / Total ways to distribute n balls into n boxes
= \(\frac{\binom{n-1}{1}\binom{n}{2}(n-2)!}{n^n}\)
= \(\frac{(n-1)n!(n-2)!}{2n^n}\)
= \(\frac{n!(n-1)!}{2n^n}\)
This is the required probability here.
c) Probability that only 1 box is empty is computed here as:
= Number of ways to select a box which would be empty * Probability that only that box would be empty ( from previous part)
= \(\frac{n*n!(n-1)!}{2n^n}\)
= \(\frac{(n!)^2}{2n^n}\)
This is the required probability here.
d) Given that box #1 is empty, probability that only 1 box is empty is computed here as:
= Probability that only box 1 is empty / Probability that box 1 is empty
We will use the answers from parts a) and b) here to get:
=\(\frac{ \frac{n!(n-1)!}{2n^n}}{\frac{(1 - n)^n}{n^n}}\)
= \(\frac{n!(n-1)!}{2(1-n)^n}\)
This is the required probability here.
e) Given that only 1 box is empty, probability that box #1 is empty is computed here as:
= 1/n as each box is equally likelt to be empty
Therefore 1/n is the required probability here.
What is the product of -2/7 and -3/7 ?
Answer:
6/49
Step-by-step explanation:
-2/7 * -3/7 = (-2 * -3) / (7*7) = 6/49
Evaluate the function f(p) = p2 + 3p + 1 for p = -2.
The result of the function f(p) = \(p^2\) + 3p + 1 for p = -2 is -1
The function is
f(p) = \(p^2\) + 3p + 1
The function is the expression that represents the relationship between the one variable and another variable. If one variable is dependent variable then the another variable will be independent variable.
The values of p = -2
Substitute the value of p in the function and find the solution
f(p) = \(p^2\) + 3p + 1
f(-2) = \((-2)^2\) + 3×-2 + 1
f(-2) = 4 - 6 + 1
f(-2) = -1
Hence, the result of the function f(p) = \(p^2\) + 3p + 1 for p = -2 is -1
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Matthew cleaned the garage in 2.5 hours he was paid x dollars per hour he then spent $3 and had $12 remaining how much was he paid per hour?
The amount that Matthew was paid per hour is given as follows:
$6.
How to obtain the amount that Matthew was paid per hour?The amount that Matthew was paid per hour is obtained applying the proportions with the amounts given in this problem. A proportion is a fraction of a total amount, using to obtain amounts in the context of a problem.
He then spent $3 and had $12 remaining, hence the total amount earned is calculated as follows:
x - 3 = 12
x = 12 + 3
x = $15.
(total amount - spent amount = remaining amount).
He earned $15 in 2.5 hours, hence the amount that Matthew was paid per hour is found applying the division of 15 by 2.5, as follows:
15/2.5 = $6.
(amount per hour = total amount divided by the number of hours).
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valuate the triple integral. $\int\!\!\int\!\!\int e {\color{red}} y \,dv$, where e is bounded by the planes $ x
The final answer is $\frac{1}{12}$.
We need to evaluate the triple integral $\iiint e y , dv$ over the region $e$ bounded by the planes $x = 0$, $y = 0$, $z = 0$, $x + y + z = 1$, and $x + y = 2$.
To evaluate this triple integral, we can use the limits of integration obtained by considering the intersection of the planes. From the plane equations $x+y+z=1$ and $x+y=2$, we can solve for $z$ and $x$ in terms of $y$ to obtain the limits:
0≤z≤1−x−yand0≤x≤2−y.
Since $e$ is bounded by the planes $x=0$ and $y=0$, we have $0 \leq x \leq 2-y$ and $0 \leq y \leq 2$. Thus, we can set up the triple integral as follows:
Next, integrating with respect to $x$, we obtain∫
02[22−22]
02−∫ 02 [eyx− 2eyx 2 − 2ey 2 x ] 02−ydy.Simplifying this expression, we get
∫02(2−522+32)
.∫ 02 (2ey− 25 ey 2 + 2ey 3 )dy.
Evaluating the integral, we get the final answer of $\frac{1}{12}$.
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question:-Evaluate the triple integral $\int!!\int!!\int e y ,dv$, where $e$ is bounded by the planes $x = 0$, $y = 0$, $z = 0$, $x + y + z = 1$ and $x + y = 2$.
The triangles shown below must be congruent.
Answer:
false
Step-by-step explanation:
5
4
3-
Mark this and return
N
-5-4-3-2-1₁.
24
1+
GAW N
y
+2+
-3
-4
1 2 3 4 5 x
What is the range of the function on the graph?
O all the real numbers
O
all the real numbers greater than or equal to 0
all the real numbers greater than or equal to 2
O all the real numbers greater than or equal to -3
Save and Frit
The range of the function on the graph would be: D. all real numbers greater than or equal to 2
How to calculate the function rangeTo obtain the range, observe the y values whose result can be obtained by the function of x. To obtain this range, we examine the graph and note that the range begins from 2 on the y-axis and extends upwards.
So, if we wish to define our range, we will enter all real numbers that are equal to or greater than 2 as seen in the direction of the graph.
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Suppose a regular n-gon is inscribed in a circle of radius r. Diagrams are shown for n=6, n=8, and n = 12. n = 6 n=8 n = 12 a a VT a Imagine how the relationship between the n-gon and the circle changes as n increases. 1. Describe the relationship between the area of the n-gon and the area of the circle as n increases.
Answer:If an N-gon (polygon with N sides) has perimeter P, then each of the
N sides has length P/N. If we connect two adjacent vertices to the
center, the angle between these two lines is 360/N degrees, or 2*pi/N
radians. (Do you understand radian measure well enough to follow me
this far?)
The two lines I just drew, plus the side of the polygon between them,
form an isosceles triangle. Adding the altitude of the isosceles
triangle makes two right triangles, and we can use one of them to
derive the equation
sin(theta/2) = s/(2R)
where theta is the apex angle (which I said is 2*pi/N radians), R is
the length of the lines to the center (the radius of the circumscribed
circle), and s is the length of the side (which I said is P/N).
Putting those values into the equation, we have
sin(pi/N) = P/(2NR)
so that
P = 2NR sin(pi/N)
gives the perimeter of the N-gon with circumradius R.
Can we see a connection between this formula and the perimeter of a
circle? The perimeter of the circumcircle is 2*pi*R. As we increase
N, the perimeter of the polygon should get closer and closer to this
value. Comparing the two, we see
2NR*sin(pi/N) approaches 2*pi*R
N*sin(pi/N) approaches pi
You can check this out with a calculator, using big numbers for N such
as your teacher's N=1000. If you calculate the sine of an angle in
degrees rather than radians, the formula will look like
N*sin(180/N) --> pi
Step-by-step explanation:
What are the solutions to the equation 0=|3x+3|+3
Therefore, the solutions to the equation 0 = |3x + 3| + 3 are x = -2 and x = 0.
To solve the equation 0 = |3x + 3| + 3, we need to eliminate the absolute value. Remember that the absolute value of a number is always non-negative.
First, let's isolate the absolute value term on one side of the equation:
|3x + 3| = -3
Since the absolute value cannot be negative, there are no solutions to the equation as it stands. However, if we modify the equation to make the right side positive, we can find a solution.
To eliminate the absolute value, we can rewrite the equation as two separate equations, considering both the positive and negative cases:
3x + 3 = -3
-(3x + 3) = -3
Solving equation 1:
3x + 3 = -3
3x = -6
x = -2
Solving equation 2:
-(3x + 3) = -3
-3x - 3 = -3
-3x = 0
x = 0
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Keegan is determining whether the triangle with vertices L(-1, 3), M(5, 5) and N(7, -1) is a right triangle. Keegan finds the slopes as shown and concludes that the triangle is not a right triangle because the product is not -1. What is his error and what should he do to correct it?
(added an image)
will mark brainiliest
Keegan's error is assuming that the product of the slopes of any two sides of a triangle should be -1 for the triangle to be a right triangle.
To determine if the triangle LMN is a right triangle, Keegan should instead calculate the lengths of the three sides of the triangle and check if they satisfy the Pythagorean theorem.
The Pythagorean theorem states that in a right triangle, the square of the length of the hypotenuse (the longest side) is equal to the sum of the squares of the lengths of the other two sides.
To correct his approach, Keegan should calculate the lengths of sides LM, MN, and NL using the coordinates of the vertices and then check if the Pythagorean theorem holds true.
If the squared length of one side is equal to the sum of the squares of the other two sides, then the triangle LMN is a right triangle.
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a is a negative odd number.
Choose two words from the list in the box that describe a²
A negative
B positive
Codd
D even
Answer:
positive and odd
Step-by-step explanation:
If a is a negative odd number, then a² can't be negative, because a number squared is always positive.
I'll illustrate this with an example.
Let's choose -7 as an example. Instead of a.
-7² = 49
So we see that the result is positive & odd.
So the words that describe a^2 are positive and odd.
The edge of a cube has length 10 inches with a possible error of 1%. The possible error, in cubic inches, in the volume of the cube is: a) 3 b) 1 c) 10 d) 30 e) all of these
Answer:
d) 30
Step-by-step explanation:
1% of 10 inch is 0.1 inch
10 inch + 0.1 inch = 10.1 inch
10 inch - 0.1 inch = 9.9 inch
V = s³
For s = 9.9 in., V = (9.9 in.)³ = 970.299 in.³
For s = 10.1 in., V = (10.1 in.)³ = 1030.301 in.³
For 10 in., V = (10 in.)³ = 1000 in.³
|1000 in.³ - 970.299 in.³| = 29.701 in.³
|1000 in.³ - 1030.301 in.³| = 30.301 in.³
The error is 30 in.³.
After she pays her bills each month, Lana has $300 left. Based on the graph below, which is the best estimate of how much she will spend on movies and eating out? $180 $75 $160 $200 $90 Discretionary Spending 16- to 22-Year-Olds Shopping for Pleasure 34% Hobbies 12% Eating Out 30% Movies 24%.
The best estimate of how much she will spend on movies and eating out is given as follows:
$162.
How to obtain the best estimate?The best estimate of how much she will spend on movies and eating out is obtained applying the proportions in the context of the problem.
The percentages associated with movies and eating out are given as follows:
Eating out: 30%.Movies: 24%.The amount that she has left is given as follows:
$300.
Hence the best estimate of how much she will spend on movies and eating out is obtained as follows:
(0.3 + 0.24) x 300 = 0.54 x 300 = $162.
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Sasha was making trail mix for her camping trip. She used 2 cups of pretzels, 13
cups
of peanuts, and 1 cup of mini chocolate candies. How many total cups of trail
mix does she have?
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Write an equation in slope-intercept form for the line that passes through (2,4) and is parallel to the line given by y=7.
Answer:
Step-by-step explanation:
slope of y=7 is 0
As line is parallel to y=7 therefore m=0
equation of line is given by y=mx+c
m=0
therefore y=c
substituting y=4
therefore value of c=4
hence equation of line is given by y=0(x)+4
Plz help
f(x)=2x+1 Find f(3)
Step-by-step explanation:
f(3)=2(3)+1
6+1
7
answer is 7
Answer:
f(3)=15
Step-by-step explanation:
just put 3 instead of x
The 13-year $1,000 par bonds of Vail Inc. pay 13 percent interest. The market's required yield to maturity on a comparable-risk bond is 14 percent. The current market price for the bond is $870.
a. Determine the yield to maturity.
The current market price for the bond is $870 the yield to maturity is 14.13%
How is yield to maturity calculated?The approximate yield to maturity of this bond is 11.25%, which is above the annual coupon rate of 10% by 1.25%. You can then use this value as the rate (r) in the following formula: C = future cash flows/coupon payments. r = discount rate (the yield to maturity)
knowing that:
Face value (par value) of the bond (F) = $1,000Annual coupon rate (C) = 13% of the face value = 0.13 * $1,000 = $130Years to maturity (n) = 13 yearsCurrent market price of the bond (P) = $870the formula is:
\(P = (C / (1 + r))^1 + (C / (1 + r))^2 + ... + (C + F) / (1 + r)^n\)
Putting the values:
\($870 = (130 / (1 + r))^1 + (130 / (1 + r))^2 + ... + (130 + 1,000) / (1 + r)^13\)
Using the math we find that the percentage is approximately 14.13%;
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A marketing person prepares several cups of cola labeled "A" and "B". One set of cups has Pepsi, the others have Coca-Cola. The marketing person knows which soda is in which cup but is not supposed to reveal that information to the subjects.
Comparison:
Random assignment:
Control: is the
Replication:
Double Blind Experiment:
Is this a blind experiment or a double blind experiment? Why or why not?blind experiment because
The function f(x) is defined as f(x) = One-third(6)x. Which table of values could be used to graph g(x), a reflection of f(x) across the x-axis?
The table of values that could be used to graph g(x), a reflection of f(x) across the x-axis is table (c)
How to determine the table of values?From the question, we have the following equation that can be used in our computation:
f(x) = One-third(6)x
When this statement is represented as an equation, we have the following representation
f(x)= 1/3(6)ˣ
The transformation is given as
A reflection of f(x) across the x-axis
This means that
g(x) = -f(x)
So, we have
g(x) = -1/3(6)ˣ
What this means is that the values of f(x) are negated to get g(x)
The table that represents this is table (c)
Hence, the table of values is table (c)
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Answer: C
Step-by-step explanation:
Imagine you are Roman citizen trying to find a place to settle in the Roman Empire. Which region would be the best region for you to settle in? Why is this region
better than the other 2 regions you might want to settle in? Give specific examples of the advantages and disadvantages from all the regions you studied in your
response.
As a Roman citizen looking for a place to settle in the Roman Empire, the best region for me to settle in would be the region of Italy, more specifically, the Italian Peninsula.
There are several reasons why this region is better than the other two regions to settle in.
Let's take a look at the advantages and disadvantages of the three regions: Advantages of settling in the Italian Peninsula: 1. Center of Power: Italy was the center of power in the Roman Empire.
This meant that all the most significant buildings, activities, and political events took place in Italy.
For instance, the Roman Senate and the Colosseum were all located in Rome.
2. Access to Sea Trade: Italy is located on the coast, giving citizens access to sea trade routes.
This meant that they could easily trade with other nations across the sea.
3. Fertile Land: The Italian Peninsula has rich soil, making it suitable for farming.
This meant that farmers could grow crops like olives, grapes, and wheat.
4. Better Protection: The Italian Peninsula was protected by the Alps mountain range to the north and the Mediterranean Sea to the south.
Disadvantages of settling in the Italian Peninsula: 1. High population density: Due to the advantages that the Italian Peninsula offered, it was highly populated, which could lead to competition for resources and limited living space.
2. Higher living costs: Since Italy was the center of power, it was more expensive to live in Italy than in other regions of the empire.
Advantages of settling in Gaul: 1. More Living Space: Gaul was less populated than the Italian Peninsula, meaning that there was more living space for the citizens.
2. Fertile Land: Gaul had rich soil, making it suitable for farming. Disadvantages of settling in Gaul: 1. Further from the Center of Power: Since Gaul was further from Rome, it meant that it was less involved in political decisions.
2. Limited Sea Trade: Gaul was further from the coast, which meant that there was limited sea trade.
Advantages of settling in Greece: 1. Access to Sea Trade: Greece was located on the coast, meaning that citizens had access to sea trade routes.
2. Rich Cultural History: Greece had a rich cultural history, meaning that there were many festivals, traditions, and myths that people could learn about.
Disadvantages of settling in Greece: 1. High Competition for Resources: Greece was highly populated, meaning that there was competition for resources and limited living space.
2. High living costs: Greece was a popular tourist destination, meaning that it was more expensive to live in Greece than in other regions of the empire.
In conclusion, the best region for me to settle in the Roman Empire would be the Italian Peninsula.
It had many advantages, including being the center of power, having access to sea trade, fertile land, and better protection, and disadvantages such as a higher population density and higher living costs.
Gaul and Greece also had advantages and disadvantages, such as having more living space and access to sea trade, respectively, but had more significant drawbacks like limited sea trade and high competition for resources.
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Find the area of the shape
Hello!
area
= 2*25 + (20 - 2)*(25-8)
= 50cm² + 306cm²
= 356cm²
In the diagram figure PMNO is the image of figure ABCD
What is the name of the image of AD?
○ MP
○ PO
○ DA
○ ON
The name of the figure illustrated in the image of AD is Side B. PO.
How to illustrate the diagram?From the diagram in the question, Figure ABCD is the Image of PMNO, that is each vertex is a corresponding pair of the other image. This implies that P with AM with BN with CO with D
The same can be applied to the sides in the two images ABCD correspond with PMNO, also each corresponding side will be AD to PO. In this case, AB to PMBC to MNDC to ON.
Therefore, the image of side AD must be PO.
In conclusion, the correct option is B.
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Question 2: Leilamade a one-time investment of $12 000.00 in a
registered retirement savings plan (RRSP) at 2.65%, compounded
semi-annually. She plans to withdraw the money when she retires in 30
years.
a) Determine the value of the investment when she retires. Show your
work.
I
b) Calculate the rate of return [note:] over the 30 years. Show your work.
the value of the investment when she retires is $26434.92.
What is the compound interest?Compound interest is when you earn interest on both the money you've saved and the interest you earn.
Formula:
A = P(1 + {r}/{n})^{n.t}
A = final amount
P = initial principal balance
r = interest rate
n = number of times interest applied per time period
t = number of time periods elapsed
here, we have,
given that,
Leilamade a one-time investment of $12 000.00 in a
registered retirement savings plan (RRSP) at 2.65%, compounded
semi-annually.
She plans to withdraw the money when she retires in 30
years.
So, she get finally is,
using the formula we get,
$26434.92
hence, the value of the investment when she retires is $26434.92.
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1.25x+275x solve show work and collect like terms
Answer:
276.25
Step-by-step explanation:
1.25x+275x
=276.25
no like terms
Solve for the value of q
Answer:
\(q=45\)
Step-by-step explanation:
Notice that \((q+2)^{\circ}\) and \((3q-2)^{\circ}\) form a linear pair, that is, they sum to \(180^{\circ}\) as follows:
\((q+2)^{\circ}+(3q-2)^{\circ}=180^{\circ}\\(q+2+3q-2)^{\circ}=180^{\circ}\\(4q)^{\circ}=180^{\circ}\\4q=180\\q=\frac{180}{4}\\q=45\)
5.3 MATHEMATICS HOLIDAY PACKAGE-TERM 2(2023) Instructions: Attempt ALL items 1. Your family has seven siblings; peter, John, Sarah, Joy, Ali, Mary and Ivan. There is an interval of 2 years between the ages of the children from Ivan to peter. Ivan is three years old. Task: Using an arrow diagram, explain the information about your family.
Use the graph of f(x) to find the solutions to the equation f(x)=0.
A. Two Solutions: x = -4, 7
B. Two Solutions: x = 4, -7
C. One Solution: x = 28
D. No Solution
Answer: A
In looking for solutions in the graph of y=f(x) where f(x) = 0, you're looking for the x-intercepts. The catch is that you only want the x-value of the intercepts.
The intercepts are (-4,0) and (7,0), so the solutions are -4 and 7.
What is the selling price of a good whose marked price is Rs 10,000 and it sold after 10% discount and levying 13% VAT?find it
Answer:
$10300
Step-by-step explanation:
Given data
Marked price= Rs 10,000
discount= 10%
VAT= 13%
Let us compute the discount and the VAT
Discount
=10/100*10,000
=0.1*10,000
=$1000
VAT
=13/100*10,000
=0.13*10,000
=$1300
Hence the cost of the good will be
=10000-1000+1300
=$10300
Can someone help me find \(\frac{8}{7} = m + \frac{2}{8}\)
Answer:
m=25/28
Step-by-step explanation:
I need an answer to this asap, hope you can understand.
The lengths of the segments x and y in the right triangles are x = 6√2 and y = 12√2
How to determine the lengths of x and yThe given shape is the right-angled triangle
Such that
We have angles = 30 degrees and 45 degrees
The measure of y can be calculated using the following sine ratio
sin(45) = y/24
Make y the subject
So, we have
y = 24 * sin(45)
When evaluated, we have
y = 12√2
The length x is calculated as
sin(30) = x/y
So, we have
x = y * sin(30)
This gives
x = 12√2 * 1/2
Evaluate
x = 6√2
Hence, the value of x in the triangle is 6√2
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18+ 4(28) use the properites of operations to evaluate this expressions?
The value of the expression 18 + 4(28) will be 130.
What is the value of the expression?When the relevant factors and natural laws of a mathematical model are given values, the outcome of the calculation it describes is the expression's outcome.
PEMDAS rule means for the Parenthesis, Exponent, Multiplication, Division, Addition, and Subtraction. This rule is used to solve the equation in a proper and correct manner.
The expression is given below.
⇒ 18 + 4(28)
Simplify the expression, then the value of the expression will be
⇒ 18 + 4 x (28)
⇒ 18 + 4 x 28
⇒ 18 + 112
⇒ 130
Thus, the value of the expression 18 + 4(28) will be 130.
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