Answer:A and b
Step-by-step explanation:
The dimensions of cylinders that have a volume under 220 cubic inches per serving are:
3-inch radius and 4-inch height
4-inch diameter and 4-inch height
4-inch diameter and 9-inch height
Volume is defined as the mass of the object per unit density while for geometry it is calculated as profile area multiplied by the length at which that profile is extruded.
Here,
We can use the formula V = πr²h to find the volume of each cylinder.
For a cylinder with a 3-inch radius and 4-inch height:
V = π(3)²(4) ≈ 113.1 cubic inches
For a cylinder with a 4-inch radius and 4-inch height:
V = π(4)²(4) ≈ 200.96 cubic inches
For a cylinder with a 9-inch radius and 9-inch height:
V = π(9)²(9) ≈ 2289.0 cubic inches
For a cylinder with a 4-inch diameter and 9-inch height (radius is 2 inches):
V = π(2)²(9) ≈ 113.04 cubic inches
For a cylinder with a 6-inch diameter and 9-inch height (radius is 3 inches):
V = π(3)²(9) ≈ 254.5 cubic inches
For a cylinder with a 9-inch diameter and 4-inch height (radius is 4.5 inches):
V = π(4.5)²(4) ≈ 254.5 cubic inches
Therefore, the dimensions of cylinders that have a volume under 220 cubic inches per serving are:
3-inch radius and 4-inch height
4-inch diameter and 4-inch height
4-inch diameter and 9-inch height
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What is the radius of a circle with a diameter of 240 mm?
A) 76.43 mm
B) 480.00 mm
C)12.00 mm
D) 120.00 mm
The radius of a circle is half of its diameter so the radius of a circle with a diameter of 240 mm is 120.00 mm. Option D is the correct answer.
To find the radius of a circle with a given diameter, you can follow these steps:
Given that the diameter is 240 mm, divide it by 2 to obtain the radius. Recall that the radius is half the length of the diameter.
Radius = Diameter / 2
In this case, Radius = 240 mm / 2 = 120 mm.
Therefore, the radius of the circle with a diameter of 240 mm is 120.00 mm.
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A statue casts a shadow that is 9 ft long. A boy that is 4 ft tall casts a shadow that is 6 ft long. How tall is the statue?
Answer:
6 feet tall.
Step-by-step explanation:
The boy is 4 ft tall, but he casts a 6 ft long shadow. You need to find how long a shadow would be if a person/thing was just 1 ft tall.
To do this, you would need to divide 4 by 4, and 6 by 4 as well.
6/4 is 1.5, or 1 and a half.
If a person (or a thing) is 1 foot tall, the statue will cast 1 and a half feet long shadow.
The statue casts a 9 ft long shadow.
Since we already figured out 1 ft = 1 and 1/2 ft shadow, and since the statue casts a 9 foot long shadow, you need to divide 9 by 1.5.
(You'll get 6.)
This means that the statue is 6 feet tall, and it casts a 9 foot long shadow.
Recall that, fixed a set U (which we call the universe of discourse), we have certain operations on subsets of U so that, for all A, B, C CU the following equivalences and equalities hold. >> AC BUC, ABCC CCA⇒B >> CnACB, A" = A, (AUB)* = A*n B', (An B)* = A*UB*. ACB →B'CA, You can answer just one of the following parts, not both. You can support your answer with drawings of Venn diagrams, but you need to give an argument according to the specifications for full credit. (a) Prove that for any given sets A, BCU, we have that B\A= (AB)* using only the above equations and equivalences. (Hint: Notice that two sets X, Y CU are equal if and only if, for every CCU, we have XCC YCC.) (b) Prove that for any given sets A, BCU, we have that B* A* = (AB)* using the definitions of the operations (). \, and in terms of the elements of U, A, and B.
(a) To prove that B\A = (AB)* using only the above equations and equivalences, we need to show that B\A is equivalent to (AB)*.
First, we will show that B\A is a subset of (AB)*.
Let x be an element of B\A. Then, x is in B and x is not in A. Therefore, x is in AB and not in A. This means that x is in (AB)*. Thus, we have shown that B\A is a subset of (AB)*.
Next, we will show that (AB)* is a subset of B\A.
Let x be an element of (AB)*. Then, x is in AB or x is not in AB.
If x is in AB, then x is in B and x is in A. Therefore, x is not in B\A.
If x is not in AB, then x is not in A or x is not in B. Therefore, x is not in A and x is in B. This means that x is in B\A.
Thus, we have shown that (AB)* is a subset of B\A.
Since we have shown that B\A is a subset of (AB)* and (AB)* is a subset of B\A, we can conclude that B\A = (AB)*.
(b) To prove that B* A* = (AB)*, we need to show that B* A* is a subset of (AB)* and (AB)* is a subset of B* A*.
First, we will show that B* A* is a subset of (AB)*.
Let x be an element of B* A*. Then, x is in (B*) and x is in (A*).
If x is in B*, then x is in B or x is not in B.
If x is in A*, then x is in A or x is not in A.
If x is in B and x is in A, then x is in AB.
If x is not in B and x is not in A, then x is not in AB.
If x is in B and x is not in A, then x is in B\A.
If x is not in B and x is in A, then x is in A\B.
Therefore, we have shown that x is in (AB)*.
Next
4.
Find the area of the shaded region.
A. 5x2 + 16x – 21
B. 7x2 + 28x + 27
C. 5x2 + 28x + 27
D. 5x2 + 28x + 21
Answer:
yay
Step-by-step explanation:
yayyayyayyayyayyyayyayayayyayaya
Answer:
D. 5x2 + 28x + 21
Step-by-step explanation:
First you want to find the area of the white rectangle
Then find the area of the beings rectangle
Then subtract beings minus white.
Sorry it’s +21. The first answer in your list
then thats correct
...............................................................................................................................................
5x^2+28x+21 confirmed from Cortez himself
Together donkey and Shrek can make 7 cupcakes in 12 mins. Shrek can make 2 cupcakes in 8 mins. How long will it take Donkey to make 3 cupcakes
Label each statement as true or false regarding the zeros/roots of a quadratic function. The roots zeros of a quadratic function are the same as the factors of the quadratic function. The roots zeros are the spots where the quadratic function intersects with the y-axis. The roots zeros are the spots where the quadratic function intersects with the x-axis. There are not always two roots/zeros of a quadratic function,
Answer:
True, false, true, true.
Step-by-step explanation:
The roots zeros of a quadratic function are the same as the factors of the quadratic function. This is true because your roots are your factors—>(x-3) is a factor, x=3 is the root.
The roots zeros are the spots where the quadratic function intersects with the y-axis. No! Those are called y-intercepts!
The roots zeros are the spots where the quadratic function intersects with the x-axis. True. X-intercepts are your solutions. (x-3) graphed would the (3,0). That’s a solution.
There are not always two roots/zeros of a quadratic function, True. No solution would be when your quadratic doesn’t intersect the x-axis. One solution would be when your vertex would be on the x-axis. Two solutions is when your quadratic intersects the x-axis twice. Can there be infinite solutions? No. It’s either 0, 1, or 2 solutions.
This equation shows how the size of Terrence's sticker collection is related to the number of sticker packs he buys.
s = 20p
The variable p represents the number of sticker packs he buys, and the variable s represents the total number of stickers he has. How many sticker packs does Terrence have to buy to have a total of 20 stickers?
Answer:
400
Step-by-step explanation:
- Which is the inverse or the funcion f(x)=x²-16?
Given:
The function is:
[tex]f(x)=x^2-16[/tex]
To find:
The inverse of the function.
Solution:
We have,
[tex]f(x)=x^2-16[/tex]
Step 1: Substitute [tex]f(x)=y[/tex].
[tex]y=x^2-16[/tex]
Step 2: Interchange x and y.
[tex]x=y^2-16[/tex]
Step 3: Isolate y.
[tex]x+16=y^2[/tex]
[tex]\pm \sqrt{x+16}=y[/tex]
[tex]y=\pm \sqrt{x+16}[/tex]
Step 4: Substitute [tex]y=f^{-1}(x)[/tex].
[tex]f^{-1}(x)=\pm \sqrt{x+16}[/tex]
Therefore, the inverse function of the given function is [tex]f^{-1}(x)=\pm \sqrt{x+16}[/tex].
evaluate the double integral where is the region in the first quadrant enclosed by the circle and the lines and by changing to polar coordinates.
To evaluate the double integral over the region in the first quadrant enclosed by a circle and lines by changing to polar coordinates, we need to express the integral limits and the integrand in terms of polar coordinates.
The region in the first quadrant enclosed by a circle and lines can be defined as follows: The circle has a radius 'r' centered at the origin, and the lines are given by the equations θ = 0 and θ = π/4, where θ represents the angle in polar coordinates.
In polar coordinates, the limits of integration for 'r' would be from 0 to the radius of the circle, and the limits of integration for θ would be from 0 to π/4.
The integrand, which represents the function being integrated, would be expressed in terms of 'r' and θ.
To evaluate the double integral, we would integrate the function over the defined region using the limits of integration and the appropriate differential element in polar coordinates, which is r dr dθ.
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Find the area of a trapazoid
Answer:
The formula would be
((a+b) / 2)h = area
In this case a is one side of the base (top parralel or bottom line)
And b is the second one (top or bottom)
You can only choose one for each
You add those two up and divide that by 2
Now you multiply it by “h” or height.
Now you have the area
Find the eigenvalues and the corresponding eigenspaces for the matrix -2 0 1 1 0 -1 0 1 - 1 Here the characteristic polynomial should be cubic. You may use a calculator or Wolfram Alpha to factor the characteristic polynomial if you wish.
The eigenvalues of the matrix -2 0 1 1 0 -1 0 1 -1 are λ₁ = -1, λ₂ = 1, and λ₃ = -1. The corresponding eigenspaces are E₁ = span{[-1, 1, 0]}, E₂ = span{[1, 1, 1]}, and E₃ = span{[-1, 1, 2]}.
Eigenvalues and eigenvectors play a fundamental role in linear algebra, particularly in the study of matrices.
The eigenvalues of a matrix are the values λ for which the equation A = λ has nontrivial solutions, where A is the given matrix and is a non-zero vector. The eigenspace associated with an eigenvalue is the set of all eigenvectors corresponding to that eigenvalue.
To find the eigenvalues of the matrix -2 0 1 1 0 -1 0 1 -1, we need to solve the characteristic equation det(A - λI) = 0, where A is the given matrix, λ is an eigenvalue, and I is the identity matrix.
The characteristic equation in this case is (-2 - λ)(λ² + 1) + (1 - λ)(-1) = 0. Simplifying this equation yields λ³ - 2λ² - 2 = 0. This is a cubic equation, and we can use a calculator or Wolfram Alpha to find its roots, which are λ₁ = -1, λ₂ = 1, and λ₃ = -1.
Once we have the eigenvalues, we can find the corresponding eigenvectors by solving the equation (A - λ) = 0 for each eigenvalue.
For λ₁ = -1, solving (A + ) = 0 gives us the eigenvector [-1, 1, 0]. For λ₂ = 1, solving (A - ) = 0 gives us the eigenvector [1, 1, 1].
Finally, for λ₃ = -1, solving (A + ) = 0 gives us the eigenvector [-1, 1, 2]. These eigenvectors span the eigenspaces E₁, E₂, and E₃, respectively.
In summary, the eigenvalues of the matrix -2 0 1 1 0 -1 0 1 -1 are λ₁ = -1, λ₂ = 1, and λ₃ = -1. The corresponding eigenspaces are E₁ = span{[-1, 1, 0]}, E₂ = span{[1, 1, 1]}, and E₃ = span{[-1, 1, 2]}.
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guys please help me with this question
Answer:
= 15/20 + 1 10/20 + 4 4/20
= 5 29/20
= 6 9/20
Exact Form:
[tex]\frac{3}{4}[/tex]
Decimal Form:
6.45
Mixed Number Form:
6[tex]\frac{9}{12}[/tex]
please help me it would help a lot please <33
Answer:
11
Step-by-step explanation:
first u 90 minus 67 equals 23
and if u times 11 by 4 equal 44
minus 21 equals 23 which would make the equation true
hope this helped
Solve d/4+7/8=6
What is d?
Answer:
the answer is d=20.5 hope this helped
Answer:
d= 20.5
Step-by-step explanation:
d/4+7/8=6
(we know that to add fractions, we have to have both denomiators the same number. We aslo know that that means 8. Using that information, we know that to top number must be 48. 48/8 = 6. We can substract)
48-7= 41
(we then need to divide by 2 as we would have had to already multiplyed 4 by 2.)
41/2 = 20.5
Identify the two types of incorrect decisions in a hypothesis test. For each incorrect decision, what symbol is used to represent the probability of making that type of error?
Choose the correct answer below.
A. A Type 1 error is rejecting a true null hypothesis, whose probability is denoted α
A Type Il error is not rejecting a false null hypothesis, whose probability is denoted β
B. A Type 1 error is not accepting a true null hypothesis, whose probability is devoted α
A Type Il error is accepting a false null hypothesis, whose probability is denoted β
C. A Type I error is not rejecting a false null hypothesis, whose probability is denoted α.
A Type Il error is rejecting a true null hypothesis, whose probability is denoted β
D. A Type 1 error is accepting a false null hypothesis, whose probability is denoted α
A Type Il error is not accepting a true null hypothesis, whose probability is denoted β
The two types of incorrect decisions in a hypothesis test and the symbol used to represent the probability of making that type of error are as follows:
A. A Type 1 error is rejecting a true null hypothesis, whose probability is denoted α.
A Type II error is not rejecting a false null hypothesis, whose probability is denoted β.
What are Type I and Type II errors?A Type I error occurs when the null hypothesis is rejected, even though it is actually true.
The probability of committing a Type I error is denoted by α (alpha), which is the significance level of the test.
A Type II error occurs when the null hypothesis is not rejected, even though it is actually false.
The probability of committing a Type II error is denoted by β (beta).
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Meg used this table to track the average attendance from month to month at her theater for five months. A 5-column table with 1 row is titled Percent Increase and Decrease. Column 1 is labeled October with entry negative 1. Column 2 is labeled November with entry 0.5. Column 3 is labeled December with entry negative 0.9. Column 4 is labeled January with entries three-fourths. Column 5 is labeled February with entry one-half. A number line going from negative 1 to positive 1 in increments of 0.25. Graph the numbers on the number line. Choose the inequality symbol that makes each comparison true. Nov. Feb. Oct. Dec. Jan. Nov.
Answer:
B - Her monthly average would have increased by $19.57. ... Katie works as a waitress and records her monthly tips in the table shown below. If Katie decided not to work the month of November, how would her five month average compare to her six month ... Lisa is currently taking physics as one of her electives in school.
Step-by-step explanation:
Answer:
Nov. ✔ = Feb.
Oct. ✔ < Dec.
Jan. ✔ > Nov.
Step-by-step explanation:
Edge 2022
what is the distance between (5, 1), (5.-6)
You believe the population is normally distributed and you know the standard deviation is σ = 5.2. You obtain a sample mean of M = 78.5 for a sample of size n = 64.
What is the test statistic for this sample? (Report answer accurate to three decimal places.) test statistic= p-value=
What is the p-value for this sample? (Report answer accurate to four decimal places.)
The z-score table shows that for a z-score of 15.1, the p-value is approximately zero (p < 0.0001). Hence, the p-value for this sample is p < 0.0001.
Given that the population is normally distributed and the standard deviation is σ = 5.2.
A sample of size n = 64 is obtained with the sample mean of M = 78.5.
Test statistic = (Sample mean - population mean) / (Standard error of the mean) = (78.5 - µ) / (σ /√n)
Where µ = population mean = 0σ = 5.2n = 64.
The formula for the standard error of the mean is; σM = σ/√n = 5.2/√64 = 0.65.
Substituting in the test statistic equation,
Test statistic = (78.5 - 0) / 0.65 = 121.54.
P-value is the probability of obtaining the observed sample mean or a more extreme value from the null hypothesis.
Assuming a significance level of α = 0.05 and the null hypothesis H0: µ = 0 (Population mean), we can obtain the p-value from the z-score table.z-score = (sample mean - population mean) / standard deviation = (78.5 - 0) / 5.2 = 15.1
The z-score table shows that for a z-score of 15.1, the p-value is approximately zero (p < 0.0001).Hence, the p-value for this sample is p < 0.0001.
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What number could replace t below?
\dfrac{1}{3} = \dfrac{2}{t}
3
1
=
t
2
Answer:
If you go to this link it'll give you a whole explanation and walk how to get your answer:
https://www.khanacademy.org/math/arithmetic/fraction-arithmetic/arith-review-visualizing-equiv-frac/a/equivalent-fractions-common-denominator-review
Step-by-step explanation:
Hope that this helps! :)
Have a great rest of your day/night!
Use complete sentences to describe the domain of the consine function.
Answer:
The domain of a function is the set of the possible input values of the function. For example: consider the function f(x) = cos x, the domain of the function is the set of possible values of x.
The cosine function takes x values from all real numbers.
Therefore, the domain of the cosine function is a real numbers.
Step-by-step explanation:
6. The distribution of the weight of a prepackaged "1-kilo pack" of cheddar cheese is assumed to be N(1.18, 0.072), and the distribution of the weight of a prepackaged *3-kilo pack" of cheese (special for cheese lovers) is N(3.22, 0.09²).
Select at random three 1-kilo packs of cheese, independently, with weights being X1, X2 and X3 respectively. Also randomly select one 3-kilo pack of cheese with weight being W. Let Y = X1 + X2 + X3.
(a) Find the mgf of Y
(b) Find the distribution of Y, the total weight of the three 1-kilo packs of cheese selected.
(c) Find the probability P(Y
(a) The mgf of Y is M_Y(t) = exp (3.54t + 0.01632t²).
(b) The distribution of Y, the total weight of the three 1-kilo packs of cheese selected is Y ~ N(3.54, 0.216).
(c) The probability P(Y < W) = 0.2808.
(a) The moment generating function (mgf) of Y, the total weight of the three 1-kilo packs of cheese selected is given by:
M_Y(t) = M_X1(t) × M_X2(t) × M_X3(t)
= exp (µ_X1 t + ½ σ²_X1 t²) × exp (µ_X2 t + ½ σ²_X2 t²) × exp (µ_X3 t + ½ σ²_X3 t²)
= exp [(µ_X1 + µ_X2 + µ_X3) t + ½ (σ²_X1 + σ²_X2 + σ²_X3) t²]
Therefore, the mgf of Y is given by:
M_Y(t) = exp [(1.18 + 1.18 + 1.18) t + ½ (0.072 + 0.072 + 0.072) t²]
M_Y(t) = exp (3.54t + 0.01632t²)
(b) The total weight Y of the three 1-kilo packs of cheese is the sum of three independent and identically distributed random variables.
So, the distribution of Y is given by the following normal distribution: Y ~ N (µ_Y, σ²_Y), where µ_Y = µ_X1 + µ_X2 + µ_X3 and σ²_Y = σ²_X1 + σ²_X2 + σ²_X3.
Thus, µ_Y = 3 × 1.18
µ_Y = 3.54 and,
σ²_Y = 3 × 0.072
σ²_Y = 0.216
⇒ σ_Y = √0.216
⇒ σ_Y = 0.4649
Therefore, Y ~ N(3.54, 0.216).
(c) We need to find P(Y < W), where W is the weight of the 3-kilo pack of cheese.
Now, Y and W are independent normal random variables.
Therefore, Y - W is also a normal random variable with the following distribution: Y - W ~ N(µ_Y - µ_W, σ²_Y + σ²_W), where µ_W = 3.22 and σ²_W = 0.09².
We know that µ_Y - µ_W = 3.54 - 3.22
µ_Y - µ_W = 0.32 and,
σ²_Y + σ²_W = 0.216 + 0.09² = 0.301.
Therefore, σ_Y - W = √0.301
σ²_Y + σ²_W = 0.5486.
Now, we need to find P(Y - W < 0), which is equivalent to finding P(Z < -0.5799), where Z = (Y - W - (µ_Y - µ_W))/σ_Y - W.
Substituting the values, we get:
Z = (Y - W - 0.32)/0.5486
⇒ Y - W = -0.5799
Z = (Y - W - 0.32)/0.5486
⇒ Y - W < 0 is equivalent to Z < -0.5799.
Using a standard normal table or calculator, we get: P(Z < -0.5799) = 0.2808.
Hence P(Y < W) = P(Y - W < 0)
P(Y < W) = 0.2808.
Therefore, P(Y < W) = 0.2808, correct to four decimal places.
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What is the area of the shaded triangle?
What is the probability that the sample mean life span of 64 calculators from Caseo will exceed the sample mean life span of 81 calculators from Sharpy by greater than 6 months?
Answer:
it would be 64-81 than answer devide by 6.
Assume that C(x) is in dollars and x is the number of units produced and sold. For the total cost function C(x)=0.01x + 0.4x + 50, find AC and C'(x) when x = 90 and Ax=1 AC =$ 1 (Simplify your answer. Type an integer or decimal rounded to two decimal places as needed.) c'(x) when x = 90 is $ . (Type an integer or a decimal.)
The average cost AC when x = 90 is $1, and the derivative C'(x) when x = 90 is $0.41.
The average cost function AC and the derivative of the total cost function C'(x) can be found using the given total cost function C(x) = 0.01x + 0.4x + 50, where x represents the number of units produced and sold.
To find the average cost AC, we divide the total cost C(x) by the quantity x:
AC = C(x) / x
Substituting the given total cost function C(x) = 0.01x + 0.4x + 50, we have:
AC = (0.01x + 0.4x + 50) / x
Simplifying, we get:
AC = (0.41x + 50) / x
When x = 90, we substitute this value into the equation:
AC = (0.41 * 90 + 50) / 90
AC = (36.9 + 50) / 90
AC = 86.9 / 90
AC ≈ $0.97 ≈ $1 (rounded to two decimal places)
To find the derivative C'(x), we differentiate the total cost function C(x) with respect to x:
C'(x) = d/dx (0.01x + 0.4x + 50)
C'(x) = 0.01 + 0.4
C'(x) = 0.41
When x = 90, we substitute this value into the equation:
C'(90) = 0.41
Therefore, the derivative C'(x) when x = 90 is $0.41.
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A biologist is studying the growth of a particular species of algae. She writes the following equation to show the radius of the algae, f(d), in mm, after d days:
f(d) = 7(1.06)d
Part A: When the biologist concluded her study, the radius of the algae was approximately 13,29 mm. What is a reasonable domain to plot the growth function? (4 points)
Part B: What does the y-intercept of the graph of the function f(d) represent? (2 points)
The y-intercept of the graph of the function f(d) would represent 7 and a reasonable domain to plot the growth function is 0 ≤ d ≤ 18 because the number of days is a whole number.
Part A: When the biologist concluded her study, the radius of the algae was approximately 13,29 mm.
What is a reasonable domain to plot the growth function?The given equation is,f(d) = 7(1.06)d
The radius of the algae was approximately 13.29 mm, which is the value of f(d).Thus, f(d) = 13.29
Substitute this value in the equation to find the value of d.13.29 = 7(1.06)dlog(13.29/7)/log(1.06) = dd = 17.19
Hence, a reasonable domain to plot the growth function is 0 ≤ d ≤ 18 because the number of days is a whole number.
Part B: What does the y-intercept of the graph of the function f(d) represent?The y-intercept of the graph of the function f(d) represents the initial value of the function when x = 0. The given function is,f(d) = 7(1.06)d
Substitute 0 in the above function and solve for f(0).f(0) = 7(1.06)0f(0) = 7
Hence, the y-intercept of the graph of the function f(d) represents 7.
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The mean is _____ than the median, which in turn is _____ the mode, in a unimodal skewed right distribution.
a. less, greater than or equal to
b. less, less than
c. greater, less than
d. greater, greater than or equal to
The mean is greater than the median, which in turn is less than the mode, in a unimodal skewed right distribution. Therefore, option c) is the correct answer.
The terms mean, median, and mode are commonly used in statistics to measure the central tendency of a set of
values or a dataset. The mean is calculated by dividing the sum of all the numbers in a dataset by the total number of
items in the dataset. The mean is the average of the dataset. The median is the middle number in a dataset when the
data is arranged in ascending or descending order. Half of the values are higher than the median, and half are lower.
The mode is the value that appears most frequently in a dataset. If there are two values that occur with the same
frequency, the dataset is referred to as bimodal, and if there are more than two values that occur with the same
frequency, the dataset is referred to as multimodal. In a unimodal skewed right distribution, the mean is greater than
the median, which in turn is less than the mode. Therefore, the correct answer is option c) greater, less than.
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What is the value of y when
IN
The value of y varies directly with x. When y = 75, x =
x is 2
A 84
B 337
С
- 162
D 168
4
В.
Answer:
I think that the answer is B , 337/5 i mean .
Good luck ^^
Round to the nearest tenth, if necessary.
Answer:
what are we rounding? like what is your question?
Step-by-step explanation:
**if you answer you have my promise and i'll go back and provide an actual answer**
2
John, 25, just started contributing to his employer's 401(k) plan and started an IRA account. He is choosing to invest only in bonds and secure
Investments instead of high-risk stocks. Is John pursuing a wise investment strategy?
Select the best answer from the choices provided.
O A Yes; retirement Income should be protected from turmoil in the stock market.
OB. Yes; as john gets closer to retirement, he can switch to higher yielding stocks.
OC. No; young investors can afford more risk since they have time to recover from any sudden loses.
OD
No; bonds and safe investments are not part of good retirement plans.
Answer:
I think its C
Step-by-step explanation:
Given the ellipse (x-8)² (y + 1)² 1. 16 4 what are the vertices and co-vertices of the ellipse? Select the correct answer below: The vertices are (12, -1) and (4, -1). The co-vertices are (8, 1) and (8, -3). The vertices are (8, 1) and (8, -3). The co-vertices are (12, -1) and (4, -1). The vertices are (8, 3) and (8,-5). The co-vertices are (10, -1) and (6, -1). O The vertices are (10, -1) and (6, -1). The co-vertices are (8, 3) and (8,-5). +
The vertices of the ellipse are (12, -1) and (4, -1), and the co-vertices are (8, 1) and (8, -3).
To find the vertices and co-vertices of the given ellipse, we can use the equation of an ellipse in standard form:
((x-h)²/a²) + ((y-k)²/b²) = 1
Comparing this with the given equation ((x-8)²/(16)) + ((y+1)²/(4)) = 1, we can identify the values of h, k, a, and b.
From the equation, we can see that the center of the ellipse is at (h, k) = (8, -1). The value of a is the square root of the denominator of the x-term, which is 4, so a = 4. Similarly, the value of b is the square root of the denominator of the y-term, which is 2, so b = 2.
The vertices of the ellipse are located at a distance of a units from the center along the major axis, which is the x-axis. Therefore, the vertices are (8+a, -1) and (8-a, -1), which simplifies to (12, -1) and (4, -1).
The co-vertices of the ellipse are located at a distance of b units from the center along the minor axis, which is the y-axis. Therefore, the co-vertices are (8, -1+b) and (8, -1-b), which simplifies to (8, 1) and (8, -3).
Hence, the correct answer is: The vertices are (12, -1) and (4, -1). The co-vertices are (8, 1) and (8, -3).
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