The probability of selecting a second red pencil is \(5/10\), is \(1/2\).
What purposes does probability serve?Information about the possibility that something will occur is provided by probability. For instance, meteorologists use weather systems to forecast the likelihood of rain. Probability theory is employed in epidemiology to comprehend the connection between exposure and the risk for health outcomes.
What are some uses for probability?Applications. The common use of probability theory includes risk modelling and evaluation. Actuarial science is used by the insurance sector and markets to establish pricing and having partners choices. In the examination of entitlements, fiscal policy, and environmental laws, authorities use predicts.
There are \(11\) pencils in the box (\(6\) red and \(5\) blue).
If one red pencil is chosen and kept, there will be \(5\) red and \(5\) blue pencils left in the box.
Therefore, the probability of choosing another red pencil is:
\(5/10 = 1/2\)
So the probability of choosing a red pencil, keeping it, and then choosing another red pencil is: \(6/11 * 5/10 = 3/11 = 0.2727\) (rounded to four decimal places)
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PLEASE HELPPP THANKS
Answer: The last option. X is greater than or equal to -3
Step-by-step explanation:
If you are searching for all of the values highlighted in red, then it must be every single value greater than x=-3 including the value itself (the dot located on the value is shaded, therefore you must include it within the domain).
3 6 9 12 15 18 21 24 27 30 is odd or even numbers?
Answer: Half of them are even and half of them are odd.
Step-by-step explanation:
The even numbers are 6, 12, 18, 24, and 30. An even number is defined as a number that is divisible by 2, meaning it has no remainder when divided by 2. For example, 6 divided by 2 equals 3 with no remainder, so 6 is even.
The odd numbers are 3, 9, 15, 21, and 27. An odd number is defined as a number that is not divisible by 2, meaning it has a remainder of 1 when divided by 2. For example, 9 divided by 2 equals 4 with a remainder of 1, so 9 is odd.
Therefore, out of the given numbers, half of them are even and half of them are odd.
________________________________________________________
Complete the equation of the line through (-8,-2) (-4,6)
Use exact numbers.
Answer:
y = 2x + 14
Step-by-step explanation:
First, you have to find the slope by using
y2-y1
x2-x1
In other words,
-2-6
-8+4
The slope is 2.
Then you plug the rest into point-slope form (you can use either of the points, I used the first one)
y-y1=m(x-x1)
Remember that m is the slope.
y+2=2(x+8)
Distribute the slope to the parenthesis
y+2=2x+16
Isolate the y variable
y=2x2x+14
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An insurance company has provided you with a sample of paid claims. The sample includes the following claims: 192, 113, 200, 287, and 225. What are the mean and the variance respectively of this sample rounded to nearest whole number
Answer:
The mean of this sample is 203.
The variance of this sample is 3154.
Step-by-step explanation:
Mean:
Sum of all values divided by the number of values.
In this case:
\(M = \frac{192 + 113 + 200 + 287 + 225}{5} = 203.4\)
Rounding to the nearest whole number, 203.
Variance:
Sum of the difference squared between each value and the mean, divided by the number of values. So
\(V = \frac{(192-203.4)^2 + (113-203.4)^2 + (200-203.4)^2 + (287-203.4)^2 + (225-203.4)^2}{5} = 3153.8\)
Rounding to the nearest whole number, 3154.
The mean of this sample is 203. The variance is 3154.
The variance of this sample is 3154.
Mean is given by,
\(M=\frac{192+113+200+287+225}{5}\)
M=203.4
Sum of all values divided by the number of values.
In this case:
\(M=\frac{192+113+200+287+225}{5}\\M=203.4\)
Rounding to the nearest whole number, 203.
What is the variance?Some of the differences squared between each value and the mean are divided by the number of values. So
\(V=\frac{(102-203.4)^2+(113-203.4)^2+.......+(225-203.4)^2}{5}\\V=3153.8\)
Rounding to the nearest whole number, 3154.
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EXERCISE SET 1.5 Graphing Utility 1–4 Let f be the function whose graph is shown. On which of the following intervals, if any, is f continuous? (a) [1, 3] (b) (1, 3) (c) [1, 2] (d) (1, 2) (e) [2, 3] (f ) (2, 3) For each interval on which f is not continuous, indicate which conditions for the continuity of f do not hold. 1. 2. 3. 4.
[1, 3] - f is continuous on this interval.b) (1, 3) - f is continuous on this interval.c) [1, 2] - The left-hand limit of f does not exist at x = 2.d) (1, 2) - The left-hand limit of f does not exist at x = 2.e) [2, 3] - f is continuous on this interval. f ) (2, 3) - The right-hand limit of f does not exist at x = 2.
What is function?A function is a block of code that performs a specific task, and can be reused multiple times. Functions can be defined within a program, or can be imported from an external library or from another program. Functions are useful for abstracting away complex code, making it easier to read and debug. They can also help reduce code duplication and make code easier to maintain.
(a) [1, 3] – f is continuous on this interval since it is continuous at all points in the interval.
(b) (1, 3) – f is continuous on this interval since it is continuous at all points in the interval.
(c) [1, 2] – f is not continuous on this interval since it is not continuous at x = 2. The condition for continuity is not satisfied at this point.
(d) (1, 2) – f is not continuous on this interval since it is not continuous at x = 1. The condition for continuity is not satisfied at this point.
(e) [2, 3] – f is continuous on this interval since it is continuous at all points in the interval.
(f) (2, 3) – f is not continuous on this interval since it is not continuous at x = 2. The condition for continuity is not satisfied at this point.
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Complete questions as follows-
An electrician leans an extension ladder against the outside wall of a house so that it reaches an electric box 29 feet up. The ladder makes an angle of 71 degrees with the ground. Find the length of the ladder. Round your answer to the nearest tenth of a foot if necessary.
Answer:
30.7
Step-by-step explanation:
sin(71) = 29/x
x = 29/sin71
≈ 30.7
An artist is selling children's crafts. Necklaces cost $2.25 each, and bracelets cost $1.50 per each. Select all the combinations of necklaces and bracelets that the artist could sell for exactly $12.00
The variables y and x have a proportional relationship, and y = 12 when x = 5.
What is the value of y when x = 8?
Answer:
y = 19.2
Step-by-step explanation:
We know there is relationship between y and x, so according to the formula \(y = kx\)
k = 12/5
we get one function y = 2.4x
when x = 8, input it into the function,
y = 2.4×8 = 19.2
1. Un ama de casa emprende su primer negocio que es venta de desayunos. Su emprendimiento tiene un
costo jo mensual de $12000 en mercadería para la elaboración de los alimentos y materiales descartables
para envasar, y para presentar su producto. Se sabe que el costo total de fabricación de 10 desayunos
es es $19000 y que la función que representa el costo total responde a un modelo lineal:
a) Determiná el precio de venta de cada desayuno sabiendo que se obtuvo por la venta de 16 servicios
un benecio de $10400.
b) ¾Cuántos desayunos se deben producir y vender exactamente para no tener ni ganancias ni pérdi-
das?
c) Si el ama de casa logra bajar los costos jos un 15 %, ¾cuál será el nuevo benecio por la producción
y venta de 8 desayunos?
De el modelo lineal, hay que:
a) El precio de venta es de $2,100.
b) Si depen producir y vender 8.57 desayunos para no tener ni ganancias ni pérdi- das.
c) El nuevo benecio es $1,840.
-----------------
Un modelo lineal tiene el seguiente formato:
\(y = mx + b\)
m es la inclinacción, o sea, la taja de cámbio.b es el intercepto, que es el valor de y quando x = 0.Costo constante mensual de $12000.
O sea, \(b = 12000\)
Puesto que:
\(C(x) = mx + 12000\)
El costo total de fabricación de 10 desayunos es $19000.
O sea, cuando \(x = 10, C = 19000\), y usa-se esto para encontrar m.
\(19000 = 10m + 12000\)
\(10m = 7000\)
\(m = 700\)
Entonces, la función del costo es:
\(C(x) = 700x + 12000\)
Item a:
El costo de 16 servicios es:
\(C(16) = 700(16) + 12000 = 23200\)
Benecio de $10,400, o sea, las ganancias fueran de 23200 + 10400 = 33600.
El precio de venta es:
\(p = \frac{33600}{16} = 2100\)
De modo que la ganancia de la venta de x servicios es:
\(G(x) = 2100x\)
Item b:
Para esto, hay que:
\(G(x) = C(x)\)
\(2100x = 700x + 12000\)
\(1400x = 12000\)
\(x = \frac{12000}{1400}\)
\(x = 8.57\)
Si depen producir y vender 8.57 desayunos para no tener ni ganancias ni pérdi- das.
Item c:
El costo de 8 desayunos es:
\(C(8) = 700(8) + 12000 = 17600\)
Bajando el costo en 15%, sera 85%, o sea:
\(0.85(17600) = 14960\)
La ganancia es:
\(G(8) = 2100(8) = 16800\)
Lo benecio es:
\(B(8) = G(8) - 0.85C(8) = 16800 - 14960 = 1840\)
El nuevo benecio es $1,840.
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Draw an angle in standard position with the given measure. 8/3 π
The asterisk (*) represents the vertex of the angle, the initial side is the positive x-axis, and the terminal side is the red line segment that forms an angle of 8/3 π with the positive x-axis.
What is the standard position of angles?
Standard position simply means that the vertex of the angle is at the origin of the circle and that one ray of the angle is on the positive x-axis. The other ray of the angle is placed at the angle measure formed by traveling counter-clockwise along the circle.
To draw an angle in standard position with measure 8/3 π, follow these steps:
Start with the positive x-axis.
Counterclockwise, rotate the initial side of the angle until it coincides with the positive x-axis.
Starting from the initial side on the positive x-axis, rotate the terminal side of the angle in a counterclockwise direction until the angle measures 8/3 π.
The resulting angle will have a measure of 8/3 π and will look like the following:
|
|
--------*-----------
|
|
Here, the asterisk (*) represents the vertex of the angle, the initial side is the positive x-axis, and the terminal side is the red line segment that forms an angle of 8/3 π with the positive x-axis.
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Composite functions.
Answer:
2
Step-by-step explanation:
good right solve and rate my answer
I need help with this.
9514 1404 393
Answer:
61.4
Step-by-step explanation:
The length of two semicircles of diameter 10 is the circumference of a circle of that diameter:
C = πd = 10π ≈ 31.4
The perimeter includes that length plus the lengths of two straight sides that are 15 units each.
P = 31.4 + 2×15
P = 61.4 . . . . units
ASAP!!! Please help me solve
Answer: j(x) = (x-1)(x+2)
The x-1 part is because of the root x = 1
The root x = -2 leads to the factor x+2
Does anyone know anything about parallelograms
Answer:
parallelograms are quadrilateral shapes with 2 pairs of parallel sides
the opposite facing side of a quadrilateral is the same length as the side facing it.
Step-by-step explanation:
If a fission reaction yields 4.50×10^9 kJ of energy, then how much mass was lost?
1.50×10^−6 kg
5.00×10^−2 kg
5.00×10^−5 kg
1.50×10^−3 kg
Answer:
(c) 5.00×10^-5 kg
Step-by-step explanation:
The mass and energy are related by Einstein's formula E = mc².
__
Solving for mass in kg, we find it to be ...
m = E/c² . . . . . . . . where E is in joules, and c is in meters/second
m = (4.50×10^12 J)/(3×10^8 m/s)² = 5.00×10^-5 kg
The lost mass was about 5.00×10^-5 kg.
Answer:
5.00×10^−5 kg
Step-by-step explanation:
I took the test and it was correct! PLEASE LIKE and have a wonderful day!
How many significant figures are in the number
43.6? 43.6 has [?] significant figures.
Answer:
43.6 has 3 significant figures.
Julia has 9 one pound bags of sand each a different color. For a art project she will use 1/8 lb of each bag of sand to create sand art jar. How much sand will be in the jar?
a. 8/9, b. 1/72, c. 1 1/9, d. 1 1/8
you want to install molding around the circular room. How much it would cost you to install the molding that you picked if it cost $4.22 per foot?
The cost of the molding is given as follows:
$119.30.
What is the measure of the circumference of a circle?The circumference of a circle of radius r is given by the equation presented as follows:
C = 2πr.
The parameters for this problem are given as follows:
d = 9 -> r = 4.5.
(as the radius is half the diameter)
Hence the circumference is given as follows:
C = 2 x π x 4.5
C = 28.27 ft.
The cost is of $4.22 per ft, hence the total cost is given as follows:
4.22 x 28.27 = $119.30.
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WILL GIVE BRAINLIEST IF RIGHT
Help me please I am having a very difficult time right now
Answer:
Grams of Peanuts = 52.5
Grams of Raisins = 210
Step-by-step explanation:
14/4 = 3.5
21/6 = 3.5
30/5 = 3.5
3.5 · 15 = 52.5
3.5 · 60 = 210
What is the direction (angle) of the resultant vector?
Rx = -419
Ry = -253
R = 490
θ = ____ ° counterclockwise from the +x-axis
Answer:
\(\theta = 148.8\)
Step-by-step explanation:
Given
\(R_x = -419\)
\(R_y = -253\)
\(R = 490\)
Required
Determine the value of \(\theta\)
Since, \(\theta\) is counter clockwise from x axis;
The relationship between \(\theta\), \(R_x\) and R is
\(cos\theta = \frac{R_x}{R}\)
Substitute values for Rx and R
\(cos\theta = \frac{-419}{490}\)
\(cos\theta = -0.8551\)
Take arccos of both sides
\(\theta = cos^{-1}(-0.8551)\)
\(\theta = 148.770784108\)
\(\theta = 148.8\) (Approximated)
A spinner with 10 equal sized slices has 4 yellow slices, 3 red, and 3 blue slices. Kala spun the dial 1000 times and got the following results.
Kala spun the spinner 1000 times and got the following results:
- Yellow: 400 times
- Red: 300 times
- Blue: 300 times
1. Calculate the amount of sales tax:
- The item costs $350 before tax.
- The sales tax rate is 14%.
- To find the sales tax amount, multiply the cost of the item by the tax rate:
Sales tax = $350 * 0.14 = $49.
2. Determine the total cost of the item including tax:
- Add the sales tax amount to the original cost of the item:
Total cost = $350 + $49 = $399.
3. Analyze the spinner results:
- The spinner has 10 equal-sized slices.
- There are 4 yellow slices, 3 red slices, and 3 blue slices.
- Kala spun the dial 1000 times.
4. Calculate the frequency of each color:
- Yellow: Kala got 400 yellow results out of 1000 spins.
- Red: Kala got 300 red results out of 1000 spins.
- Blue: Kala got 300 blue results out of 1000 spins.
5. Calculate the probability of landing on each color:
- Yellow: Probability = Frequency of yellow / Total spins = 400 / 1000 = 0.4.
- Red: Probability = Frequency of red / Total spins = 300 / 1000 = 0.3.
- Blue: Probability = Frequency of blue / Total spins = 300 / 1000 = 0.3.
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Help me with this question…..
The decimal number is -5.690134489..... irrational number. Therefore, option C is the correct answer.
What are irrational numbers?Irrational numbers are the set of real numbers that cannot be expressed in the form of a fraction, p/q where p and q are integers. The denominator q is not equal to zero (q ≠ 0). Also, the decimal expansion of an irrational number is neither terminating nor repeating.
Here,
-9.121212121212......
This decimal number is non terminating, but repeating
So, the decimal number is rational number
-1.5000000000.....
This decimal number is non terminating, but only zeros are repeating
So, the decimal number is rational number
-5.690134489.....
This decimal number is non terminating and non repeating
So, the decimal number is irrational number
-9.121212121212....
This decimal number is non terminating, but repeating
So, the decimal number is rational number
Therefore, option C is the correct answer.
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Choose the scenarios that demonstrate a proportional relationship for each person's income.
Millie works at a car wash and earns $17.00 per car she washes.
Bryce has a cleaning service and charges $25.00 plus $12.50 per hour.
Carla makes sandwiches at her job and earns $7.85 per hour.
Tino is a waiter and makes $3.98 per hour plus tips.
The scenarios that demonstrate a proportional relationship for each person's income are :
Millie works at a car wash and earns $17.00 per car she washes.Carla makes sandwiches at her job and earns $7.85 per hour.Consider the income as y in each scenario
Scenario 1
Millie works at a car wash and earns $17.00 per car she washes.
Consider the number of car she washes as x
y = 17x
y ∝ x
This is a proportional relationship
Scenario 2
Bryce has a cleaning service and charges $25.00 plus $12.50 per hour.
The relationship will be
y = 25 +12.50x
where x is the number of hours
This is not a proportional relationship
Scenario 3
Carla makes sandwiches at her job and earns $7.85 per hour.
The relationship will be
y = 7.85x
y ∝ x
Where x is the number of hours
This is a proportional relationship
Scenario 4
Tino is a waiter and makes $3.98 per hour plus tips.
The relationship will be
y = 3.98x + tips
Where x is the number of hours
This is not a proportional relationship
Hence, the scenarios that demonstrate a proportional relationship for each person's income are
Millie works at a car wash and earns $17.00 per car she washes.Carla makes sandwiches at her job and earns $7.85 per hour.Learn more about proportional relationship here
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Pls help me with this question
Answer:
The answer is 18:45
Step-by-step explanation:
45/15=3
6*3=18
pless i really need help
Perimeter of the parallelogram = 210 in.
Area of parallelogram = 2,484 in.²
What are the Perimeter and Area of a Parallelogram?Perimeter of parallelogram = 2(a + b), where a and b are its sides.
Area of parallelogram = (b)(h), where h is its height and b is the length of one of its bases.
Given:
a = 51 in.
b = 54 in.
h = 46 in.
Perimeter of the parallelogram = 2(54 + 51) = 210 in.
Area of parallelogram = (b)(h) = (54)(46) = 2,484 in.²
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A camel can drink 15 gallons of water in 10 minutes. At this rate, how much water can the camel drink in 11 minutes?
HELP
Answer: 16.5 gallons of water.
Step-by-step explanation:
If it was me. I would be setting up as a table to keep my work organized.
So first we find how much 1 minute is.
15g : 10m
15/10 : 10m/10
1.5g : 1m
Then I multiply how many minutes there are.
1.5g x 11 : 1m x 1
16.5g : 11m
And there we find the answer of 16.5 gallons.
Happy Solving
Answer:16.5
Step-by-step explanation:
Which statement is not used to prove that ΔFGH is similar to ΔFIJ? triangles FGH and FIJ in which point I is between points F and G on segment FG and point J is between points F and H on segment FH Angle F is congruent to itself, due to the reflexive property. Angles FJI and FHG are congruent, due to the corresponding angles postulate. Points F, J, and H are collinear. Segments JI and HG are parallel.
Answer:
Points F, J, and H are collinear
Step-by-step explanation:
just took exam
The statement F, J, and H are collinear is not used to prove that ΔFGH is similar to ΔFIJ.
We have to find out which statement is wrong regarding ΔFGH is similar to ΔFIJ.
Here the statement points F, J, H are collinear are not used to prove the similarity of both triangle because if these three points are collinear than there is no triangle possible and when there is no triangle than how we prove similar to them.
So when F,J and H are collinear than we can't prove similar to both the triangles.
But in all the other points we can prove the similarity of both the triangles.
Hence the statement F, J, and H are collinear is not used to prove that ΔFGH is similar to ΔFIJ.
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Graph the data in the table
Consider a completely randomized design involving four treatments: A, B, C, and D. Select a correct multiple regression equation that can be used to analyze these data. Define all variables. I. E(y) = Bo + B1 21 22 23 24, where 21 = 1 if treatment A, 21 = 0, otherwise; x2 = 1 if treatment B, 32 = 0, otherwise; 23 = 1 if treatment C, 33 = 0, otherwise; 24 = 1 if treatment D, 24 = 0, otherwise. II. E(y) = Bo + B121 + B222 + B323 + B4204, where 21 = 1 if treatment A, 21 = 0, otherwise; 22 = 1 if treatment B, 22 = 0, otherwise; 23 = 1 if treatment C, 13 = 0, otherwise; 24 = 1 if treatment D, 24 = 0, otherwise. III. E(y) = Bo + B121 + B222 + B323, where 21 = 1 if treatment B, 21 = 0, otherwise; 22 = 1 if treatment C, 22 = 0, otherwise; 23 = 1 if treatment D, 13 = 0, otherwise. Select your answer
Option III "E(y) = B₀ + B₁x₁ + B₂x₂ + B₃x₃, where x₁ = 1 if treatment B, x₁ = 0, otherwise; x₂ = 1 if treatment C, x₂ = 0, otherwise; x₃ = 1 if treatment D, x₃ = 0, otherwise." is a correct multiple regression equation that can be used to analyze these data. So the option III is correct.
Randomized design involving four treatments: A, B, C, and D.
So total number of treatments = 4(A, B, C, D)
So the number of dummy variable is required = 4 - 1
The number of dummy variable is required = 3
The three variables would be x₁ x₂ and x₃ and the fourth treatment scenario would be represented if all three were zero.
So the option III is correct because this is a correct multiple regression equation because it contains all the necessary components to define a linear regression model.
Specifically, it contains a dependent variable (y), a constant (B₀), and three independent variables (x₁, x₂, x₃). Additionally, each of the independent variables is either assigned a value of 1 or 0 depending on the treatment, which is how a linear regression model is typically constructed.
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The complete question is:
Consider a completely randomized design involving four treatments: A, B, C, and D. Select a correct multiple regression equation that can be used to analyze these data. Define all variables.
I. E(y) = B₀ + B₁ x₁ x₂ x₃ x₄, where x₁ = 1 if treatment A, x₁ = 0, otherwise; x₂ = 1 if treatment B, x₂ = 0, otherwise; x₃ = 1 if treatment C, x₃ = 0, otherwise; x₄ = 1 if treatment D, x₄ = 0, otherwise.
II. E(y) = B₀ + B₁x₁ + B₂x₂ + B₃x₃ + B₄x₄, where x₁ = 1 if treatment A, x₁ = 0, otherwise; x₂ = 1 if treatment B, x₂ = 0, otherwise; x₃ = 1 if treatment C, x₃ = 0, otherwise; x₄ = 1 if treatment D, x₄ = 0, otherwise.
III. E(y) = B₀ + B₁x₁ + B₂x₂ + B₃x₃, where x₁ = 1 if treatment B, x₁ = 0, otherwise; x₂ = 1 if treatment C, x₂ = 0, otherwise; x₃ = 1 if treatment D, x₃ = 0, otherwise.