1. Find the domain of the equation
(a) √(x + 2) - √2 = 2x
The domain of this equation is all real numbers greater than or equal to -2. This is because the expression inside the square root must be greater than or equal to zero in order for the equation to be defined. Therefore, x + 2 ≥ 0, which simplifies to x ≥ -2.
(b) sin^3 x = sin x + 1
The domain of this equation is all real numbers. This is because the sine function is defined for all real numbers.
(c) tan x + cot x = sin x
The domain of this equation is all real numbers except for values of x that make the denominator of the tangent or cotangent function equal to zero. These values are x = nπ, where n is any integer. Therefore, the domain is all real numbers except for multiples of π.
(d) (x+1) / (x^2 -1) + cos x = csc x
The domain of this equation is all real numbers except for values of x that make the denominator of the first term equal to zero. These values are x = 1 and x = -1. Therefore, the domain is all real numbers except for 1 and -1.
2. Simplify each expression using the fundamental identities
(a) (sin^2 θ) / (sec^2 θ -1)
Using the fundamental identity sec^2 θ = 1 + tan^2 θ, we can simplify the denominator to get:
(sin^2 θ) / (tan^2 θ)
Using the fundamental identity tan^2 θ = (sin^2 θ) / (cos^2 θ), we can simplify the expression further to get:
(cos^2 θ)
(b) (1 / (1 + tan^2 x) + (1 / (1 + cot^2 x)
Using the fundamental identities tan^2 x = (sin^2 x) / (cos^2 x) and cot^2 x = (cos^2 x) / (sin^2 x), we can simplify the expression to get:
(cos^2 x) + (sin^2 x)
Using the fundamental identity cos^2 x + sin^2 x = 1, we can simplify the expression further to get:
1
(c) 1 – (cos^2 x / 1 + sin x)
Using the fundamental identity cos^2 x = 1 - sin^2 x, we can simplify the expression to get:
1 - ((1 - sin^2 x) / (1 + sin x))
Distributing the negative sign and combining like terms gives us:
(sin^2 x) / (1 + sin x)
(d) sin θ / cos θ tan θ
Using the fundamental identity tan θ = (sin θ) / (cos θ), we can simplify the expression to get:
(sin θ) / ((cos θ) * ((sin θ) / (cos θ)))
Simplifying the denominator gives us:
(cos^2 θ) / (sin θ)
Using the fundamental identity cos^2 θ = 1 - sin^2 θ, we can simplify the expression further to get:
(1 - sin^2 θ) / (sin θ)
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ILL MARK BRAINLIEST!!!!!! PLS HELP
A mechanic charges a flat fee of $30 plus $25 an hour of
labor.
Which equation can be used to determine how many
hours, h, the mechanic spends working on a particular job
if the total amount earned is T dollars?
a. T = 25 - 30h
b. T = 25 + 30h
c. T = 30 - 25h
d. T = 30 + 25h
Answer: its D
i suck at explaining but ik its D
1. Let D = Zli be the ring of Gaussian integers. We know that D is an Euclidean domain with measure dm + in) = m + n. For x = 3+2i and y = 2-5i, produce 4,7 E D such that = q + r and d(r)
The Euclidean algorithm can be applied to Gaussian integers in the same way it is applied to ordinary integers. In this case, we are given x = 3+2i and y = 2-5i and we need to find q and r such that x = qy + r and d(r) < d(y).
First, we divide x by y to get a quotient and remainder:
x/y = (3+2i)/(2-5i) = (3+2i)(2+5i)/(2-5i)(2+5i) = (16+7i)/29 = 0.551724 + 0.241379i
Since q and r must be Gaussian integers, we round the real and imaginary parts of the quotient to the nearest integer to get q = 1 + 0i = 1.
Next, we multiply q by y and subtract from x to get the remainder:
r = x - qy = (3+2i) - (1)(2-5i) = 1+7i
Finally, we check that d(r) < d(y):
d(r) = 1^2 + 7^2 = 50
d(y) = 2^2 + (-5)^2 = 29
Since d(r) > d(y), we need to adjust our quotient and remainder. We can do this by subtracting 1 from the real part of q and adding y to the remainder:
q = 0 + 0i = 0
r = (1+7i) + (2-5i) = 3+2i
Now, d(r) = 3^2 + 2^2 = 13 < 29 = d(y), so our final answer is q = 0 and r = 3+2i.
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If h(x)=f(x)g(x)+f(x)/g(x), then find the value of h’(5)
According to the solving the value of given function h’(5) h’(5) = [2f’(5)g(5)] / g(5)² + f(5) / g(5)²
What exactly is a function?A function is described as a relationship between a group of inputs with one output each. A function is, to put it simply, a relationship between inputs in which each input is connected to exactly one output. Every function has a domain and a codomain, or range. A function is typically represented by the notation f(x), where x represents the input.
According to the given information:To find the value of h’(5), we need to find the derivative of h(x) first. We can use the product rule and the quotient rule to do that:
h(x) = f(x)g(x) + f(x)/g(x)
h’(x) = f’(x)g(x) + f(x)g’(x) + [g(x)f’(x) – f(x)g’(x)] / g(x)² (by the quotient rule)
h’(x) = [f’(x)g(x) + g(x)f’(x)] / g(x)² + [f(x)g’(x) – f(x)g’(x)] / g(x)² + f(x) / g(x)²
h’(x) = [2f’(x)g(x)] / g(x)² + f(x) / g(x)²
Now we can find h’(5) by plugging in x = 5:
h’(5) = [2f’(5)g(5)] / g(5)² + f(5) / g(5)²
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Racer has a block that has different letter (A,E,M,T,C,R) On each side of its six sides.
When he drops the block on the table, the probability that it will land with the A facing up is 1/6.
A. What is the number of actual outcomes?______
B. What is the number of all actual outcomes? ______
C. What is the probability that the building block will land with either the T, C or R facing up
ill give brain to whoever tells me how they got their answer ,':]
Answer:
A. The number of actual outcomes is 6 (since there are 6 sides to the block).
B. The number of all possible outcomes would be the number of ways the block could land on the table, which is also 6 (since each of the 6 sides is equally likely to face up).
C. The probability that the block will land with either the T, C or R facing up is the probability of landing on any one of those 3 sides. Since there are 3 such sides, and each side is equally likely to face up, the probability is 3/6 or 1/2.
25 points and brainliest whoever gives right answer
Answer: D
Step-by-step explanation: Disregard the $ and solve algebraically.
[tex]4x+36\leq 52[/tex]
[tex]4x\leq 52-36[/tex]
[tex]4x\leq 16[/tex]
[tex]x\leq 4[/tex]
Answer: Choice D is the correct answer :)
Step-by-step explanation:
A factory makes rectangular boxes. The area of the top surface can be modeled by the function F(x)=66x^2 +17x + 1. The width of the top surface can be modeled by the function G(x) = 6x + 1
Write an expression, H(x), in a standard form that describes the length of the top surface.
Answer in a complete sentence.
The length of the top surface in standard form is [tex]H(x) = (60x^2 + 16x + 1)/(6x + 1)[/tex]
What are algebraic expressions?Algebraic expressions are mathematical phrases that involve numbers, variables, and arithmetic operations such as addition, subtraction, multiplication, and division. They can also involve exponents, roots, and other mathematical symbols.
In algebra, variables are often represented by letters, such as x, y, or z, and they can take on different values. The values of the variables can be manipulated using the arithmetic operations to obtain new expressions that represent relationships between the variables.
For example, the expression 3x + 2 is an algebraic expression that involves the variable x. It represents a relationship between x and a number that is 2 more than 3 times x.
Algebraic expressions are used to represent mathematical relationships and solve problems in many different areas, including science, engineering, economics, and finance. They are an essential tool for understanding and manipulating mathematical concepts and formulas.
The area of a rectangle can be found by multiplying its length and width. In this case, the area of the top surface is given by the function [tex]F(x) = 66x^2 + 17x + 1[/tex], and the width of the top surface is given by the function [tex]G(x) = 6x + 1[/tex]. Therefore, the length of the top surface can be expressed as:
Length x Width = Area
[tex]Length x (6x + 1) = 66x^2 + 17x + 1[/tex]
Expanding the left side of the equation, we get:
[tex]6x^2 + x Length = 66x^2 + 17x + 1[/tex]
Bringing all the terms to one side, we get:
[tex]60x^2 + 16x + 1 - Length x = 0[/tex]
Rearranging the terms, we get:
[tex]Length x = 60x^2 + 16x + 1[/tex]
Finally, dividing both sides by the width function G(x), we get the expression for the length of the top surface in standard form:
[tex]H(x) = (60x^2 + 16x + 1)/(6x + 1)[/tex]
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Solve the system by graphing.
y = 2x
4x - y = 0
The graph is shown in the image attached.
How do you solve by graphing?To solve an equation by graphing, you need to graph the equation on a coordinate plane and find the points where the graph intersects the x-axis. These points correspond to the solutions of the equation, which are the values of x that make the equation true here.
Therefore, to solve the equation by graphing, we plot the graph, locate the points where the graph intersects the x-axis, and read the solutions from the graph.
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Epidemiologists investigate a variety of public health problems or events, not just related to infectious diseases, but also environmental exposures, injuries, etc. Provide three specific examples of public health problems that may be investigated.
Answer: Here are three specific examples of public health problems that epidemiologists may investigate:
Obesity: Epidemiologists may investigate the causes and risk factors for obesity, as well as the prevalence and trends in obesity rates over time. They may also evaluate the effectiveness of interventions to prevent or treat obesity, such as diet and exercise programs, policy changes, or medical treatments.
Environmental exposures: Epidemiologists may investigate the health effects of exposure to environmental toxins, such as air pollution, lead, or pesticides. They may evaluate the risks associated with exposure to these toxins, identify populations that are particularly vulnerable, and assess the effectiveness of interventions to reduce exposure or mitigate health effects.
Injury prevention: Epidemiologists may investigate the causes and risk factors for injuries, such as motor vehicle crashes, falls, or firearm injuries. They may identify populations that are at higher risk for injuries, evaluate the effectiveness of injury prevention programs or policies, and develop strategies to reduce the incidence or severity of injuries.
Step-by-step explanation:
Try Again Your answer Is Incorrect. Subtract. -(5)/(6)-(2)/(3) Write your answer in simplest form.
Subtracting -15/18 from -12/18, the answer is -3/18 in simplest form.
Subtracting two fractions with different denominators involves finding a common denominator and then subtracting the fractions.
The common denominator for (-5)/(6) and (-2)/(3) is 6*3=18.
To make the fractions have the same denominator, the numerators need to be multiplied by the denominators and then divided by the denominator.
(-5)/(6) can be rewritten as -(5*3)/(6*3)=-15/18
(-2)/(3) can be rewritten as -(2*6)/(3*6)=-12/18
Subtracting -15/18 from -12/18, the answer is -3/18 in simplest form.
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GIVING BRAINLIEST PLEASE HELP
Answer:
Step-by-step explanation:
4 - 2(1) = 2
i'm pretty sure, sorry if its wrong, pls do not report.
how i got it
4 - 2 = 2
2 x 1 = 2
4 - 2y = 2
4 - 2(1) = 2
Type the second one exactly how i did, don't put a symbol or space, just copy and paste it.
Factored completely, the expression 3x^(2)-3x-18 is equivalent to A. 3(x^(2)-x-6) B. 3(x-3)(x+2) C. (3x-9)(x+2) D. (3x+6)(x-3)
The factored form of the expression [tex]3x^2 - 3x - 18[/tex] is B) 3(x-3)(x+2).
To factor a quadratic expression like this, we want to find two numbers that multiply to the constant term (-18) and add up to the coefficient of the x term (-3). In this case, those numbers are -3 and 6, because (-3) * 6 = -18 and (-3) + 6 = 3.
Then, we can use those numbers to split the middle term into two terms:
[tex]3x^2 - 3x - 18 = 3x^2 - 9x + 6x - 18[/tex]
[tex]= 3x(x-3) + 6(x-3)[/tex]
[tex]= (x-3)(3x+6)[/tex]
[tex]= 3(x-3)(x+2)[/tex]
So the factored form of the expression is 3(x-3)(x+2), which is equivalent to choice B.
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Determine if the expression -p^5√7 is a polynomial or not. If it is a polynomial, state
the type and degree of the polynomial.
The expression is not a polynomial, as it's exponent is not an integer number.
When does an expression represent a polynomial?An expression represents a polynomial when these following conditions are satisfied:
The expression consists of one or more terms.Each term contains a variable raised to a non-negative integer power, multiplied by a numerical coefficient.The exponents on the variable in each term are all whole numbers (i.e., integers).The coefficients can be any real number, including zero.The exponent for this problem is of [tex]5\sqrt{7}[/tex], which is a non-integer exponent, hence the expression is not a polynomial. Any integer exponent would make the expression in fact represent a polyonomial.
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Use decomposition to find the area of the figure.
A drawing of a composite shape made up of two triangles with a common base and the length of the base equals 10 miles. The heights of the two triangles are 7 miles and 4 miles.
Therefore , the solution of the given problem of triangle comes out to be the shape is 55 square miles.
What precisely is a triangle?Because a triangular has two or more extra sections, it is a polygon. It's shape is a simple rectangle. A triangular shape can only be distinguished from a parallelogram by its sides A, B, and C. A singular plane rather than a cube is produced by Euclidean geometry when the edges are not perfectly collinear. A shape is referred to as triangular if it has three sides and three angles. An angle is the point where a quadrilateral's three sides meet. A triangle's sides add up to 180 degrees.
Here.
Two triangles with a base of 10 miles and heights of 7 miles and 4 miles can be formed from the composite design.
The following method can be used to determine a triangle's area:
A = (1/2)bh
where A represents area, B represents foundation, and H represents height.
We can calculate each triangle's area using the following formula:
=> Area of 1st triangle
=> (1/2)(10)(7) = 35 square miles
=> Area of 2nd triangle
=> (1/2)(10)(4) = 20 square miles
The two triangles' combined regions make up the composite shape's surface area.
55 square miles is the combined shape's area
=> (35 + 20).
Consequently, the combined size of the two triangles in the shape is 55 square miles.
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how do i solve it on paper
Answer: Less than three would be like 2 or 1 or any negative number.
Step-by-step explanation: Three munis anything is less than the 3 you had to start with.
The diagram shows a right triangle and the lengths of two of its sides in inches. Which measurement is closest to the value of d in inches?
Substituting in the given values for a and b, we can solve for d and find that it is approximately 9.48 inches.
What is Pythagorean theorem?Pythagorean Theorem is a mathematical formula that states that the square of the hypotenuse (the side opposite the right angle) of a right triangle is equal to the sum of the squares of the other two sides. It is expressed as a2 + b2 = c2, where c is the length of the hypotenuse and a and b are the lengths of the other two sides.
The given diagram is a right triangle with two of its sides labeled in inches. To find the length of the third side (d), one must use the Pythagorean Theorem. The Pythagorean Theorem states that in a right triangle, the square of the hypotenuse (the longest side) is equal to the sum of the squares of the other two sides. In this case, d is the hypotenuse, so d2 = a2 + b2. Therefore, substituting in the given values for a and b, we can solve for d and find that it is approximately 9.48 inches.
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how do I do this I'm confused truly can u help me
Answer:
1st one: (x-7)
2nd: (-x+7)
3rd: (5x+3)
Step-by-step explanation:
1: you subtract like terms so first you do 3x-2x which is x and do -2-5 and get -7 so its (x-7)
2: do 2x-3x and get (-x) and then do 5-(-2) and get 7 so the answer is (-x+7)
3: first do 2x+3x and get 5x and then do 5+(-2) and get 3 so the answer is (5x+3)
Answer:
Step-by-step explanation:
( 3x - 2 ) - ( 2x + 5 ) = 3x - 2 - 2x - 5 = x - 7
( 2x + 5 ) - ( 3x - 2 ) = 2x + 5 - 3x + 2 = - x + 7
( 2x + 5 ) + ( 3x - 2 ) = 2x + 5 + 3x - 2 = 5x + 3
The potential energy , p in a spring is represented using the formula p=1/2kx2. Lupe uses an equivalent equation, which is solved for k , to determine the answers to her homework . Which equation should she use
An equation which Lupe should use include the following: k = 2p/x².
How to make k the subject of the formula?In this exercise, you are required to make "k" the subject of formula in the given mathematical expression by using the following steps.
p = 1/2kx²
By multiplying both sides of the mathematical expression by 2, we have the following:
2p = kx²
By dividing both sides of the mathematical expression by x², we have the following:
k = 2p/x²
In conclusion, we can reasonably infer and logically deduce that the spring constant can be calculated by using k = 2p/x².
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Bill's father can paint a room in 2 hours less than it would take Bill te paint it. Working together, they can complete the job in 2 hours and 24 minutes. How much time would each require working alon
The amount of time each would require working alone is 6 hours for Bill and 4 hours for his father.
To find the time each person would require working alone, we can use the combined work rate formula: 1/t₁ + 1/t₂ = 1/t, where t₁ is the time for Bill's father, t₂ is the time for Bill, and t is the time they take working together.
We are given that t = 2 hours and 24 minutes, or 2.4 hours. We are also told that Bill's father can paint a room in 2 hours less than Bill, so t₁ = t₂ - 2.
Substituting these values into the formula, we get:
1/(t₂ - 2) + 1/t₂ = 1/2.4
Multiplying both sides by 2.4t₂(t₂ - 2) to clear the denominators gives us:
2.4t₂ + 2.4(t₂ - 2) = t₂(t₂ - 2)
Simplifying and rearranging gives us:
2.4t₂ + 2.4t₂ - 4.8 = t₂² - 2t₂
t₂² - 6.8t₂ + 4.8 = 0
Multiply the whole equation by 5 and factor.
5t₂² - 34t₂ + 24 = 0
(5t₂ - 4)(t₂ - 6) = 0
t₂ = -4/5 or t₂ = 6
Since t₂ cannot be less than 2 (because Bill's father takes 2 hours less than Bill), the only valid solution is t₂ = 6. Therefore, Bill would take approximately 6 hours to paint the room alone, and Bill's father would take approximately 4 hours (6 - 2) to paint the room alone.
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Q1: What percent of males drive sports cars?
Q2: What percent of all drivers are male?
Q3: What percent of sports car drivers are male?
Q4: are question 1 and question 3 the same? (yes or no)
(1) The percentage of males that drive sports cars is 46.43 %.
(2) The percentage of all drivers that are male is 25 %.
(3) The percentage of sports car drivers that are male is 46.43 %.
(4) Yes, question 1 and question 3 are the same.
What percent of males drive sports cars?
The percentage of males that drive sports cars is calculated as follows;
= 39 / 84 x 100%
= 46.43 %
The percentage of all drivers that are male is calculated as follows;
= 60 / 240 x 100%
= 25%
The percentage of sports car drivers that are male is calculated as;
= 39 / 84 x 100%
= 46.43 %
Thus, question 1 and question 3 are the same.
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Solve the inequality:
2x-3
Please show your work!
Answer:
Step-by-step explanation:
pls help! i completely forgot how to do this
8 1/7 - 3 5/7
step 1: convert to improper fraction
57/7 - 26/7
step 2: subtract numerators
31/7
step 3: change to a mixed number
4 3/7
Plot and label 4, -3, 1, and their opposites on the number line.
The number line is plotted on the graph below
What is a line plot ?A line plot is a graph that shows data as points or check marks above a number line, indicating the frequency of each value.
If we need to compare two different groups , a line chart does have one advantage for visualizing frequency distributions
It displays information as a series of data points called 'markers' connected by straight line segments
Given data ,
Let the number line be represented by graph A
Now , the points on the graph are
A = { 4 , -3 , 1 }
The opposites of the number points A is given by
A' = { -4 , 3 , -1 }
The values of the sets A and A' are plotted on the line plot graph
Hence , the line plot is solved
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Find the area of the shaded region
The area οf the shaded regiοn will be (area οf bigger rectangle - area οf white rectangle) 5x²+7x-26.
What exactly is a rectangle?A rectangle is a type οf quadrilateral, which is a fοur-sided pοlygοn. A rectangle has the fοllοwing prοperties:
It has fοur straight sides, which are perpendicular tο each οther (at right angles).
It has fοur right angles (90-degree angles).
Its οppοsite sides are equal in length and parallel tο each οther.
Its diagοnals are equal in length and bisect each οther.
Nοw,
Area οf shaded regiοn= area οf bigger rectangle - area οf white rectangle.
As Area οf rectangle= length × Breadth
then
Area of shaded region [tex]= (3x-4)(2x+2)-(x-3)(x-6)[/tex]
[tex]=6x^2+6x-8x-8 -x^2+6x+3x-18\\=5x^2+7x-26[/tex]
hence,
The area οf the shaded regiοn will be 5x²+7x-26.
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The value of y is proportional to the value of x. The constant of proportionality for this relationship is 2.
Answer:
go to the y and go all the way down to two i think
A chocolatier visits Singapore and discovers the incredible taste of durian. They decide to create a durian flavored chocolate bar that costs no more than $4.50 per pound to produce. If plain chocolate costs $3.50 per pound and durian costs $15.75 per pound, how many pounds of durian are needed to produce 216 pounds of durian flavored chocolate bars?
The number of pounds of durian needed to produce 216 pounds of durian-flavored chocolate bars is 50 pounds.
We have,
To determine the amount of durian needed to produce 216 pounds of durian-flavored chocolate bars, we need to calculate the cost and compare it to the budget constraint.
Let's assume x represents the number of pounds of durian needed.
The cost of plain chocolate per pound is $3.50, so the cost of x pounds of plain chocolate is 3.50x dollars.
The cost of durian per pound is $15.75, so the cost of x pounds of durian is 15.75x dollars.
To ensure the cost does not exceed $4.50 per pound, we set up the inequality:
3.50x + 15.75x ≤ 4.50 x 216.
Combining like terms:
19.25x ≤ 972.
Dividing both sides by 19.25:
x ≤ 50.45.
Since we cannot have a fraction of a pound, we round down to the nearest whole number.
Therefore,
The number of pounds of durian needed to produce 216 pounds of durian-flavored chocolate bars is 50 pounds.
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Horizontal Method For Numbers 3 - 4,PLS HELP 100 POINTS
1. ( 3 x − 3 ) ( 8 x + 1 )
= ( ) ( 8 x ) + ( ) ( 1 ) − ( 8 x ) − 3 ( )
= ( ) x ^2 + 3 x − ( ) x − 3
= ( ) x ^2 − ( ) x − 3
2. ( x − 4 ) ( 3 x − y + 3 )
= x ( ) + x ( ) + x ( ) − 4 ( ) − 4 ( ) − 4 ( )
= 3 x ^2 − ( ) + ( ) − ( ) + ( ) + ( )
= 3 x ^2 − x y − 9 x + 4 y + 12
PLS HELP GIVING 100 POINTS
A frequency table is a type of statistic used to organize and display data.
What is data set?A data set is a collection of related data records or observations, usually containing information about a particular subject or area of study. Data sets can be used to analyze trends, make predictions, and provide insights into various phenomena. Data sets can be collected from a variety of sources, such as surveys, experiments, simulations, or other research methods. They are typically organized into tables and can include both quantitative and qualitative data.
It is a chart that shows how often something occurs within a given set of data. The categories in a frequency table are the different values or categories of data, and the frequencies are the number of times each category occurs.
Relative frequency is the ratio of the number of times a category occurs in the data set to the total number of values in the data set. It is usually expressed as a percentage or decimal. For example, if the data set contains 20 values and the category "A" occurs 5 times, the relative frequency of "A" is 25%.
Cumulative frequency is the sum of the frequencies up to a given point in the data set. It is used to show how many values are below or above a certain category. For example, if the data set contains 20 values and the category "A" occurs 5 times, the cumulative frequency of "A" is 5. This means that there are 5 values that are below or equal to "A" in the data set.
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Answer:
A frequency table is a type of statistic used to organize and display data.
What is data set?
A data set is a collection of related data records or observations, usually containing information about a particular subject or area of study. Data sets can be used to analyze trends, make predictions, and provide insights into various phenomena. Data sets can be collected from a variety of sources, such as surveys, experiments, simulations, or other research methods. They are typically organized into tables and can include both quantitative and qualitative data.
It is a chart that shows how often something occurs within a given set of data. The categories in a frequency table are the different values or categories of data, and the frequencies are the number of times each category occurs.
Relative frequency is the ratio of the number of times a category occurs in the data set to the total number of values in the data set. It is usually expressed as a percentage or decimal. For example, if the data set contains 20 values and the category "A" occurs 5 times, the relative frequency of "A" is 25%.
Cumulative frequency is the sum of the frequencies up to a given point in the data set. It is used to show how many values are below or above a certain category. For example, if the data set contains 20 values and the category "A" occurs 5 times, the cumulative frequency of "A" is 5. This means that there are 5 values that are below or equal to "A" in the data set.
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Explain the connection between ∠2 and ∠B.
A triangle has angle measures 50 degrees, 65 degrees, and B. 2 lines extend from a horizontal line to form 3 angles. The angles are 50 degrees, 2, 65 degrees.
on edg
PLEASE ANSWER I'LL GIVE 40 POINTS! HURRY!!
Answer:
B=2=180-115=65Both of the shapes correspond with one another.
(For explanation, look to the second image. Brainly would not let me submit that for an unknown reason)
(It is my explanation)
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If I do 100 Joules of work to lift my backpack, then half of everything falls out so that I can lift it using half the force, how much work will I do to lift it the same distance?
Answer: If you did 100 Joules of work to lift your backpack, then the work you did is equal to the force applied multiplied by the distance lifted. Let's say you lifted the backpack a distance of d meters with a force of F Newtons. Then:
100 J = F x d
Now, if half of everything falls out of your backpack, the force required to lift the backpack will be reduced by half, so the new force required will be F/2. The distance lifted remains the same. So the work done to lift the backpack using half the force is:
Work = (Force x Distance) / 2
= (F x d) / 2
But we know that F x d = 100 J, so we can substitute this in the equation above:
Work = (F x d) / 2
= 100 J / 2
= 50 J
Therefore, the work you will do to lift your backpack the same distance with half the force is 50 Joules.
Step-by-step explanation:
1. Give an example of independent random variables X and Y such that P(X < Y ) = 1.
2. Suppose that 50 people order food at McDonald’s over a certain time period. Each person, independently of all others, orders a Quarter Pounder with probability p1 = 0.2. Assume further that if someone orders a Quarter Pounder, that person also orders a Diet Coke with probability p2 = 0.3. Let X denote the number of people ordering both a Quarter Pounder and a Diet Coke. Determine the PMF of X.
P(X = 1) = (50 choose 1) * (0.06)^1 * (0.94)^49 ≈ 0.198
And so on for the other values of X.
An example of independent random variables X and Y such that P(X < Y) = 1 is X = 0 and Y = 1. Since X is always less than Y, the probability that X is less than Y is 1.
The probability of a person ordering both a Quarter Pounder and a Diet Coke is p1*p2 = 0.2*0.3 = 0.06. Since each person orders independently of all others, the number of people ordering both a Quarter Pounder and a Diet Coke follows a binomial distribution with parameters n = 50 and p = 0.06. Therefore, the PMF of X is:
P(X = x) = (50 choose x) * (0.06)^x * (0.94)^(50-x)
for x = 0, 1, ..., 50.
Using the above formula, we can calculate the probability of X taking on any value between 0 and 50. For example, the probability of X = 0 is:
P(X = 0) = (50 choose 0) * (0.06)^0 * (0.94)^50 = 0.94^50 ≈ 0.076
The probability of X = 1 is:
P(X = 1) = (50 choose 1) * (0.06)^1 * (0.94)^49 ≈ 0.198
And so on for the other values of X.
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I just need the answers quick please thanks a lot ! Problems are in picture
B
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