The Richmond Park gamekeeper wanted to know how many deer were in the park. He caught 90 of them and put a small tag round a hoof of each of them. He then let the deer go back into the park. The next week, the gamekeeper caught 70 deer. 10 of the deer had a tag around one of their hooves. a) Using this information, what estimate did the gamekeeper make for how many deer were in the park? b) Write down any one assumption he made.
a) The estimate for the total number of deer in the park is given as follows: 630 deers.
b) The assumption that he made was that the proportion was followed.
How to estimate the total number of deer in the park?The total number of deer in the park is estimated applying the proportions in the context of this problem.
The next week, the gamekeeper caught 70 deer. 10 of the deer had a tag around one of their hooves, hence the fraction of marked deers is given as follows:
10/70 = 1/7.
He had marked 90 deers, hence the estimate for the total number of deers, considering a constant proportion, is given as follows:
1/7 x n = 90
n = 90 x 7
n = 630 deers.
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Fimd the explicit formula.
-4,-12,-36,-108
The explicit formula for the given geometric series will be [tex]a_n = -4(3)^{n-1}[/tex].
What is geometric progression?When there is a constant between the two successive numbers in the series then it is called a geometric series. In other words, every next term is multiplied by that constant term to form a geometric progression.
Given that the geometric series is -4,-12,-36,-108. The formula for the nth term of the geometric progression will be written as:-
[tex]a_n = a_1(r)^{n-1}\\[/tex]
Here, r is the common ratio of the series. The value of the common ratio is r = -12 / -4 = 3.
The formula will be:-
[tex]a_n = a_1(r)^{n-1}\\[/tex]
[tex]a_n = -4(3)^{n-1}\\[/tex]
Therefore, the formula for the nth term will be [tex]a_n = -4(3)^{n-1}\\[/tex].
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Find the surface area of the prism.
22 cm
7.5 cm
5.5 cm
i'm to lazy to bored trying to do my work and I'm also very dumm
PLEASE HELP ME
Triangle ABC is defined by the points A(3.8), B(7.5), and C(2.3). Create an equation for a line passing through point A and perpendicular to BC.
[tex]y=2\frac{2}{3}+16[/tex] is the answer as it passes perpendicular and through point A
explain in your own words why it takes more to prove that quadrilaterals are similar
Proving that quadrilaterals are congruent takes more because all quadrilaterals are polygons of four sides and they all have a sum angle of 360°
Explaining quadrilaterals?
With four sides, four vertices, and four angles, a quadrilateral is a closed shape and a specific kind of polygon. In order to create it, four non-collinear points are joined. Quadrilaterals' internal angles add up to a constant 360 degrees.
What is quadrilateral formula?
When the diagonal and the sum of the lengths of the perpendiculars drawn from the remaining two vertices are known, the area of the quadrilateral can be determined as follows Area of quadrilateral = (12) diagonal length sum of the lengths of the perpendiculars drawn from the remaining two vertices.
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The complete question is -
Explain in your own words why it takes more to prove quadrilaterals congruent. Include examples demonstrating how ""just angles"" or ""just sides"" is not enough.
Probability: is the answer: 0.53125
The value of A + B + C is 1.21 for the distribution function.
What is a distribution function?The cumulative distribution function of a real-valued random variable X, or simply the distribution function of X, evaluated at x, is the probability that X will take a value less than or equal to x in probability theory and statistics.
From the given data the values of A, B, and C are 1 / 8, 3 / 8, and 23 / 32.
The value of the sum of A, B, and C is calculated as:-
E = A + B + C
E = 1 / 8 + 3 / 8 + 23 / 32
E = ( 4 + 12+ 32 ) / 32
E = 39 / 32
E = 1.21
Therefore, the solution for the distribution function is E = 1.21.
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5/12 x 5/12 x 5/12.
Answer:
0.072337963 or 125/1728
Step-by-step explanation:
simply put it into a calculator
The width of a rectangle is double the length. If the perimeter of the rectangle is 120 feet, find the length
Answer:
20
Step-by-step explanation:
lets say width is 2x and the length is x
2x+x+2x+x=120
6x=120
x=20
thus, your answer is 20
Triangle HIJ is similar to triangle KLM. Find the measure of side MK. Round your answer to the nearest tenth
The measure of side MK is 103.3.
To find the length of side MK, we need to use the concept of similar triangles. Similar triangles have the same shape but may be different sizes. In this case, the ratio of corresponding sides is the same.
Now, we can use the fact that the ratio of corresponding sides is the same for both triangles:
JI/JH = ML/MK
16/29 = 57/x
cross-multiply the expression, we get
16x = 57 × 29
x = (57 × 29)/16
x = 103.3125
Therefore the measure of side MK is 103.3 to the nearest tenth place.
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2k + 36 = 6k - 12 thx!!
Answer:
k = 12
Step-by-step explanation:
Finding the unknown value:
To find the value of 'k', isolate k
First subtract 36 from both sides.2k + 36 = 6k - 12
2k = 6k - 12 - 36
2k = 6k - 48
Subtract 6k from both sides2k - 6k = -48
- 4k = -48
Now, divide both sides by (-4)k = -48 ÷ (-4)
k = 12
What is the value of x in the equation 3/5(x + 2) = x−4
Answer:
x = 13
Step-by-step explanation:
I put it into my calculator, let me know if that helped :)
the cost of first-class postage in 2013 was raised to 46 cents. according to the exponential regression model, what was the predicted cost for 2013? start by noting that 2013 is 63 years since 1950.
The predicted cost of postage for 2013 is 45 cents.
How to determine the predicted cost in 2013We need to use the exponential regression model to predict the cost of postage for the year 2013, given that it was 63 years since 1950.
Let's assume that the cost of postage can be modeled using the exponential function:
C(t) = a * e^(kt)
where:
C(t) is the cost of postage at time ta is the initial cost of postage (in 1950)k is the growth rate of the cost of postage (in decimal form)We can use the two data points we have to solve for a and k:
In 1950, the cost of postage was 3 cents (a = 0.03)In 2013, the cost of postage was 46 cents (C(63) = 0.46)Using the above data points, we can solve for k as follows:
0.03 = a * e^(0 * k)
0.46 = a * e^(63k)
Dividing the second equation by the first equation, we get:
15.333 = e^(63k)
Taking the natural logarithm of both sides, we get:
k = ln(15.333)/63
Evaluate
k = 0.043
Now that we have k, we can use it to predict the cost of postage in 2013:
C(63) = a * e^(63k)
C(63) = 0.03 * e^(63 * 0.043)
C(63) = 0.45
Hence, according to the exponential regression model, the cost is 45 cents.
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Complete question
The cost of first-class postage in 2013 was raised to 46 cents.
According to the exponential regression model, what was the predicted cost for 2013 if the cost of postage was 3 cents in 1950
Start by noting that 2013 is 63 years since 1950.
WILL GIVE BRAINLIEST!! Give an example of a system of two linear equations in two variables with 0, 1, or infinitely many solutions. Explain how you can determine whether this system has 0, 1, or infinitely many solutions without graphing. What does this reveal about the relationship between the lines on the graph?
Write at least 150–300 words please
The solution of a system of equations can be determined by dividing the coefficients of variables.
What are system of equations?A set of simultaneous equations, also known as a system of equations or an equation system, is a finite set of equations for which common solutions are sought.
Solution of system of equations :-
Let the two system of equations be
a₁x + b₁y + c₁ = 0 and a₂x + b₂y + c₂ = 0
1) Unique solution or one solution :-
The solution of the system of equations will be unique when,
a₁ / a₂ ≠ b₁ / b₂
2) Infinite solutions :-
The solution of the system of equations will have infinitely many solutions when,
a₁ / a₂ = b₁ / b₂ = c₁ / c₂
3) No solution :-
The solution of the system of equations will have no solutions when,
a₁ / a₂ = b₁ / b₂ ≠ c₁ / c₂
Hence, the solution of a system of equations can be determined by dividing the coefficients of variables.
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Use unit multipliers to convert:
481 centimeters
to meters
Answer:
4.81 meters
Step-by-step explanation:
1 m = 100 cm
where m = meters
cm = centimeters
481 centimeters need to be converted:
= 481 cm × [tex](\frac{1 m}{100 cm})[/tex]
The cm in the numerator and denominator will completely cancel each other out:
= [tex]\frac{481}{100}[/tex] m
= 4.81 meters
9/4-7/3 pls answer fast
Answer: -1/12
Step-by-step explanation:
Answer:
-1/12
Step-by-step explanation:
9/4 - 7/3
To start, we need to make the denominators the same number. In order to do that, we need to identify the factor they have in common.
4, 8, 12
3, 6, 9, 12
Twelve is the common factor, so we will use this. Remember, whatever you do to the bottom, you must do to the top, and vice versa.
4 * 3 = 12
/12
3 * 9 (numerator) = 27
27/12
Now, we must figure out 7/3.
3 * 4 = 12
4 * -7 = -28
-28/12
Now, take the new fractions and subtract them.
27/12 - 28/12
-1/12
If a battery has a radius of 4 millimeters and a height of 32 millimeters, approximately what is the area of the surface to be covered by the label? Use 3.14 for and round to the nearest hundredth.
The area of the surface to be covered by the label = 904.32 mm²
We know that the formula for the surface area of cylinder is:
A = 2πrh + 2πr²
where r is the radius of the cylinder and h is the height of the cylinder
Here, the dimensions of the cylindrical battery:
radius r = 4 millimeters
height h = 32 millimeters
Using the above formula of surface area of cylider, the area of the surface to be covered by the label would be,
A = 2πrh + 2πr²
A = 2πr(h + r)
A = 2π × 4 × (32 + 4)
A = 2 × 3.14 × 4 × 36
A = 904.32 mm²
Therefore, the required area is 904.32 mm²
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if 20km represents 20 km due east, what does -7m represent ?
The expression - 7 meters represents the 7 meters in the west direction.
What is a vector?The quantity which has magnitude, and direction, and follows the law of vector addition is called a vector.
If 20km represents 20 km due east.
We know that the opposite of the east direction will be the west direction.
Then we can conclude that if the east direction represents the positive values, then the west direction represents the negative value.
Then the expression - 7 meters represents the 7 meters in the west direction.
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Can you please help me out with this homework it’s due 11:59!!!!!
The values of the terms, a₁, a₂, and a₁₀ of the sequence are;
(a) a₁ = 1, a₂ = 1/2, a₁₀ = 1/10
(b) [tex]\lim\limits_{n\to {\infty}}[/tex] aₙ = 0
What is a mathematical sequence?A sequence is an ordered collection of objects such as numbers in which repetition of the object is possible, and the objects (or numbers) are referred to as the terms of the sequence.
The sequence, [tex]\{a_n\}^\infty_{n = 1}[/tex] with values, aₙ = [tex]\int\limits^{\infty}_1 {\frac{dx}{x^{n + 1}} }[/tex]
(a) a₁ = [tex]\int\limits^{\infty}_1 {\frac{dx}{x^{1 + 1}} } = \int\limits^{\infty}_1 {\frac{dx}{x^2} } = -[\frac{1}{x} ]^{\infty}_1[/tex]
[tex]-[\frac{1}{x} ]^{\infty}_1 = -\frac{1}{\infty} - (-\frac{1}{1} ) = 0 + 1 = 1[/tex]
Therefore; a₁ = 1
a₂ = [tex]\int\limits^{\infty}_1 {\frac{dx}{x^{2 + 1}} } = \int\limits^{\infty}_1 {\frac{dx}{x^3} } = -[\frac{1}{2\cdot x^2} ]^{\infty}_1[/tex]
[tex]-[\frac{1}{2\cdot x} ]^{\infty}_1 = -\frac{1}{\infty} - (-\frac{1}{2 \times 1} ) = 0 + \frac{1}{2} = \frac{1}{2}[/tex]
Therefore; a₂ = 1/2
a₁₀ = [tex]\int\limits^{\infty}_1 {\frac{dx}{x^{10 + 1}} } = \int\limits^{\infty}_1 {\frac{dx}{x^{11}} } = [-\frac{1}{10\cdot x^{10}} ]^{\infty}_1[/tex]
[tex][-\frac{1}{10\cdot x^{10}} ]^{\infty}_1 = -\frac{1}{\infty} - (-\frac{1}{10\times 1} ) = 0 + \frac{1}{10} = \frac{1}{10}[/tex]
Therefore; a₁₀ = 1/10
b) The limit, [tex]\lim \limits_{n\to \infty} a_n[/tex] can be evaluated as follows;
aₙ = [tex]\int\limits^{\infty}_1 {\frac{dx}{x^{n+1} } } \, dx[/tex]
[tex]\int\limits^{\infty}_1 {\frac{dx}{x^{n+1} } } \, dx = [-\frac{1}{n\cdot x^n} ]^{\infty}_1 = -\frac{1}{n\times \infty } - (-\frac{1}{n\times 1^n} )= \frac{1}{n}[/tex]
aₙ = 1/n
Therefore;
[tex]\lim \limits_{n\to \infty} a_n = \frac{1}{\infty}[/tex] = 0
[tex]\lim\limits_{n\to {\infty}} a_n[/tex] = 0
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Find the dot product of the vectors u = [2, 3, 4] and v = [5, 6, 7].
Answer:
Step-by-step explanation:
The dot product of two vectors u and v is given by the formula:
u · v = u[0] * v[0] + u[1] * v[1] + u[2] * v[2]
where u[0], u[1], and u[2] are the components of vector u and v[0], v[1], and v[2] are the components of vector v.
Plugging in the values from the vectors u = [2, 3, 4] and v = [5, 6, 7], we get:
u · v = 2 * 5 + 3 * 6 + 4 * 7 = 10 + 18 + 28 = 56
Therefore, the dot product of the vectors u and v is 56.
a new table needs to be added to the sports physical therapy database to track which sports the patients are playing. this data will be used to analyze the results of the therapies. assuming that many patients play multiple sports, how would you design the table?
To design the table, you could create a "Sports" table and a "Patient-Sport" table with the following fields:
Sports table: Patient-Sport table:
SportID (primary key) PatientID (foreign key)
SportName SportID (foreign key)
What do you mean by database?A database is a collection of organized data stored and retrieved electronically. It is designed to allow efficient storage, retrieval, manipulation, and management of large amounts of data. Databases can be used to store information such as text, numbers, images, and other media. The data in a database is typically organized into tables, which are made up of rows and columns. Each row represents a single record, and each column represents a field of information within that record. There are many different types of databases, including relational databases, NoSQL databases, and in-memory databases, and they are used in a wide range of applications, such as online retail, finance, healthcare, and more.
The Patient-Sport table is used to connect the patient to the sport they are playing. This allows for multiple sports to be assigned to a single patient. In this way, you can track the sports played by each patient, while still maintaining the relationships between the patient and their data in the other tables.
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Given VXY and VWZ what is VW?
Answer: 37.5
Step-by-step explanation:
62.5 * (3/5) = 37.5
The hole is (-6,-9) find the rational function which reports this graph
Answer:
Step-by-step explanation:
If there is a hole in the graph at x = -6, that means that there was initially an expression in both the numerator and the denominator that was the same, which is the hole very loosely defined. If the hole is at x = -6, then the factor for that solution is (x + 6). One of those has to be in both the numerator and denominator in order for them to cancel out. This is called a removeable discontinuity. Because the x-intercept is at x = 3, the factor for that zero is (x -3). That has to go in the numerator also. Our equation then for the rational function graphed is
[tex]y=\frac{(x+6)(x-3)}{(x+6)}[/tex] which FOILs to
[tex]y=\frac{x^2+3x-18}{x+6}[/tex]
How do you find the zeros of a function please give a detailed explanation
There are several ways to find the zeros of the function x^4–18x^2+12x+80. You can graph the equation and see where it crosses the x axis.The graph crosses at x=-4,-2. This means that -4, and -2 are roots, and (x+4) and (x+2) are factors. I like synthetic division the best when it comes to factoring. I teach synthetic division when we get to problems like this, so I will assume that you are familiar with it.First take the coefficients of the equation x^4–18x^2+12x+80 I have to usex^4 +0 x^3 –18x^2+12x+80 : 1 0 -18 12 80. I will use -4 first.If you are not supposed to graph it, then you can use synthetic division. It can take longer because you have to “guess “ at the factors using an educated guess from the factors of =/- p/q . Where p is the last coefficient and q is the first coefficient.In this case we need to find the factors of 80/1 . These are 1,2,4,5,8,10,16,20,40,80. So possible roots are +/- (1,2,4,5,8,10,16,20,40,80). Students usually start with the smaller numbers and work up, So I would try 1 first then 2 etc.Now another way to find the factors is to use 10 as x and to see what the answer is, then try to factor the results. f(x)=x^4–18x^2+12x+80 f(10)=10,000–1800+120+80=8400I can factor 8400 into 100 *6 *14, or (10+0) *(10+0)*(10–4)*(10+4). 0 is not a factor from above, but +/- 4 is. So I could try those two numbers. Looking at the possible roots using 10 as my x, I would need to look at 9,11, 8,12, 0,20 -4,26, etc
Fill in the blanks below in order to justify
whether or not the mapping shown
represents a function.
Set A
7
3
6
Set B
The mapping diagram above
8
represents
since for each number
Set A (the output) there
are multiple mappings ◆
5
-3
a function
in
The mapping above represents a function, since each number in Set A is mapped to only one number in Set B.
When does a relation represents a function?A relation represents a function when each input value is mapped to a single output value.
For the relation in this problem, we have that:
Input of 7 is mapped to an output of 2.Input of 0 is mapped to an output of 2.Input of 8 is mapped to an output of -4.As there are no repeated inputs, the relation represents a function.
Missing InformationThe diagram is given by the image presented at the end of the answer.
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If you are on an island and there are already 375 inhabitants, and
for every footprint there is one eyeball, for every 32 pineapples there
are 40 ducks, for every 2 hands there is one inhabitant, for every
palm tree there are 12 pineapples, for every hand there is one
eyeball, for every lizard there are 4 footprints, for every 30 palm
trees there is one wave, for every 2 turtles there is 1 anchor, for
every palm tree there are 8 cacti, for every 120 anchors there is one
wave, for every 0.5 lizards there are 20 ducks, for every 20 turtles
there are 30 pineapples, for every 5 waves there are 3 canoes. How
many cacti are there on the island? Show your work!
Answer:
3000
Step-by-step explanation:
8 x 375 = 3000
Can anyone do this math problem please?
Jeremy should choose Model A.
How to determine the model to chooseFrom the question, we have the following parameters:
The capacity of A is twice the backpackB, is 15 L more than his daypack. 18 + Model A = 28 + Model BThese mean that:
Model A = 2 * Backpack (x)
Model B = 15 + Backpack (x)
18 + Model A = 28 + Model B
As equations, we have
A = 2x
B = 15 + x
18 + A = 28 + B
So, we have
18 + 2x = 28 + 15 + x
Evaluate
x = 25
So, we have
A = 2 * 25 = 50
B = 15 + 25 = 40
Hence, he should choose model A
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HELP ASAP PLEASE!!! In the following figure, BC is tangent to the circle at point B. Use the figure to answer the questions.
The length of BC is 6 inches.
How are radius and tangent to a circle related?There is a theorem in mathematics that:
If there is a circle O with tangent line L intersecting the circle at point A, then the radius OA is perpendicular to the line L.
Given;
Part a;
The length of the secant CD, times its external segment, FC, equals the square of the tangent segment CB;
Mathematically, it can be written as;
RT*ST=TU^2
Part b;
RT*ST=TU^2
TU^2=9*4
TU=6
Therefore, the distance of TU in circle will be 6 inches.
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What is the answer to 8 - 6n - 7
Which among the following is the smallest 4- Digit number is divisible by 6,8 and 9
a} 2012 b}2160 c}2088 d}1008
Keisha bought 12 pounds of sugar for $7. How many pounds of sugar did she get per dollar?
Answer:
1.71 pounds of sugar per dollar.
Step-by-step explanation:
To calculate how many pounds of sugar Keisha got per dollar, we divide the total amount of sugar by the total amount of money spent. In this case, she bought 12 pounds of sugar for $7, so we divide 12 by 7:
12 ÷ 7 = 1.71
So, Keisha got 1.71 pounds of sugar per dollar.