Nonresponse bias occurs when(D) those responding to a survey or poll differ systematically from the nonrespondents.
Nonresponse bias occurs when individuals who do not respond to a survey or poll differ systematically from those who do respond, resulting in a biased sample. This can lead to incorrect inferences about the population being studied.
Nonresponse bias can occur for various reasons, including lack of interest, inability to participate, or refusal to participate. It is important to understand and address nonresponse bias to ensure the accuracy and reliability of survey or poll results. Strategies such as follow-up contact attempts and incentives can help mitigate nonresponse bias.
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Find the slope of a line that includes the points (10, 8) and (-5, 8).
Answer:
0
Step-by-step explanation:
First, you have to plug it into the formula to find the slope.
\(\frac{rise}{run}\) =\(\frac{y2-y1}{x2-x1}\)
\(\frac{8-8}{-5-10} =\frac{0}{-15}\)
Since 0 divided by anything is 0, that gives us 0 as a slope and it would be horizontal.
PLEASE HELP YOU GET BRAINLY I HAVE A LIMITED TIMEE
Answer:
2a
b+b+b+b+b
C^3
d*d*d*d
I only know the first 4
I hope this helps
Step-by-step explanation:
Answer:
Step-by-step explanation:
e. x
∑ e
1
- or more simply, xe.
f. f^y
The difference between a number and four is eighteen.
Answer:
22
Step-by-step explanation:
I believe it is 22, I am not sure!!!
Write a polynomial division that has a quotient of x+3 and a remainder of 2.
The polynomial division that has a quotient of x+3 and a remainder of 2 is:
(x³ + 3x² + 2x + 8) ÷ (x + 5) = x + 3 + (2/(x + 5))
To create a polynomial division with a quotient of x+3 and a remainder of 2, we need to set up the division in the following form: (dividend) ÷ (divisor) = (quotient) + (remainder/divisor).
Let's use the dividend (x³ + 3x² + 2x + 8) and the divisor (x + 5) to perform the division:
x + 3
___________________
x + 5 | x³ + 3x² + 2x + 8
To begin the division, we divide the first term of the dividend (x³) by the divisor (x + 5). The result is x², which becomes the first term of the quotient. We then multiply the entire divisor (x + 5) by x² and subtract the result from the dividend:
x + 3
___________________
x + 5 | x³ + 3x² + 2x + 8
- (x³ + 5x²)
After subtracting, we bring down the next term of the dividend (-2x) and repeat the process. We divide (-2x) by (x + 5), resulting in -2, which becomes the next term of the quotient. We multiply the entire divisor (x + 5) by -2 and subtract:
x + 3 - 2
___________________
x + 5 | x³ + 3x² + 2x + 8
- (x³ + 5x²)
_______________
-2x + 8
+ 2x + 10
We bring down the last term of the dividend (8) and divide it by the divisor (x + 5), resulting in a remainder of 2.
Therefore, the polynomial division that has a quotient of x+3 and a remainder of 2 is:
(x³ + 3x² + 2x + 8) ÷ (x + 5) = x + 3 + (2/(x + 5))
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If any person is good at algebra could you have a look at this question. There is attached picture.
Answer:
hey..
their is no picture attached
I would like to help u if u would post another question with attached pic
is the equation (x+3)² = x²+9 always, sometimes, or never true. justify your reasoning completely.
Answer:
never, it will always be x²+6x+9
Step-by-step explanation:
if you expand (x+3)² you will always get:
x² + 3x + 3x + 9, which simplifies to x² + 6x + 9
Solve the inequality below. Give your answer in interval notation. Simplify any fractions, do not convert them to a decimal.
(|-9-3b|)/(-8)<-3
Enter your solution below in interval notation. Do NOT use any spaces.
Use the following symbols when necessary.
[ ]: located next to the P key
∞ : option - 5
U : use upper case u for union
PLEASE HELP ME I am confused
I am more confused with the final answer b≤-11 on a calculator and when I set it up differently, but it's still correct and the calculator gives me b≥-11, but when I solve with pen and paper and show my steps I get b≥-11. The second answer is the same b≥5 either way I'm just confused with the first one. Which way is correct b≤-11 or b≥-11?
Calculator is M a t h w a y
and what would the answer be in interval notation please I would really appreciate it if you can respond as quickly as you can.
Answer:
bE (-infinity ,-11) U (5,+infinity)
b<-11 ,b ≤-3
b>5 , b >-3
Answer:
b<-11 ,b ≤-3
b>5 , b >-3
________ charts are useful in displaying nominal data or numerical data that splits nicely into different categories so you can quickly see comparative results and trends.
Categorical charts are useful in displaying nominal data or numerical data that splits nicely into different categories so you can quickly see comparative results and trends.
The type of chart that is useful in displaying nominal data or numerical data that splits nicely into different categories is called a categorical chart. Categorical charts allow you to quickly see comparative results and trends by displaying data in separate categories or groups. This makes it easier to identify patterns and trends in the data and to draw conclusions about the relationships between different variables.
Examples of categorical charts include bar charts, column charts, and pie charts. Bar charts and column charts are commonly used to display numerical data, while pie charts are often used to display proportional data. Categorical charts can be used in a variety of contexts, such as business, education, and scientific research, to help communicate complex data in a clear and concise manner.
Overall, categorical charts are a powerful tool for organizing and displaying data in a way that makes it easy to identify patterns and trends. By using these charts, you can quickly and accurately visualize complex data sets and draw conclusions about the relationships between different variables.
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what is the equation of the line that passes through the point (-3,6) and has a slope of -4
Answer:
y= mx+c
-3=-4(6)+c
-3=-24+c
-3+24=c
21=c
c=21
y=-4x+21
PLEASE I NEED SOME HELP WITH THIS , CORRECT ANSWER WILL GET BRANILEST AND 5 STARS !
Which has the greater area-the shaded region or the striped region? Note: the radius of the target is 5
inches and each ring is 1 inch apart.
LOOK AT THE IMAGE TO ANSWER THE QUESTION :)
According to the information we can infer that the greater area is the striped region.
Which has the greater area - the shaded region or the striped region?To calculate what is the greater area we have to calculate the area of each segment of the target. Fist we can calculate the area of the striped region.
\(\pi * 3^{2} = 29.6088\)Then we have to calculate the area of the shaded region with the following procedure:
\(\pi *4^{2} = 50.2654\\\pi * 5^{2} = 78.5398\\\\\)78.5398 - 50.2654 = 28.2777According to the above, the striped area has the greater area.
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Annual premium per $100 coverage Brick Steel Mixed Wood Area Rating Building Cantierta Duiking Coman's Buiding Content- Burong Collonis City 039 Suburb 0 56 0 83 Rural [ 06 8. Travis rents an apartment in a historic, all-brick building downtown. The value of the belongings in the apartment is about $11,000. If Travis wishes to insure his belongings while renting, how much will he have to pay for insurance per year? Use the table above to solve.
Answer:
$47.3
Explanation:
First, we need to find the corresponding value for the all-brick apartment located downtown. So, taking into account the table, we will use the value 0.43 because he wishes to ensure his belongings.
Then, using the fact that the value of the belongings in the apartment is about $11,000, we get that we can calculate how much he will have to pay as follows:
\(11000\times\frac{0.43}{100}=47.3\)Therefore, he will have to pay $47.3 for insurance.
A line passes through the points (1, 4) and (0, 0). What is its equation in slope-intercept form?
Answer:
y=4x
Step-by-step explanation:
Write the composite function in the form f(g(x)). [Identify the inner function u=g(x) and the outer function y=f(u).] y= 8+3x
(g(x),f(u))=() Find the derivative dy/dx. dx
dy
= SCALC8M 2.5.003. Write the composite function in the form f(g(x)). [Identify the inner function u=g(x) and the outer function y=f(u).] y=(2−x 2
) 3
(g(x),f(u))=() Find the derivative dy/dx. dx
dy
= SCALC8M 2.5.007. Find the derivative of the function. F(x)=(7x 6
+2x 3
) 4
\(1) Given that y = 8 + 3x\)To find the composite function in the form f(g(x)), we identify the inner function as g(x) and the outer function as f(u).
\(Here, u = g(x) = x and y = f(u) = 8 + 3u= 8 + 3(g(x)) = 8 + 3x\)
\(∴ The composite function in form f(g(x)) is f(g(x)) = 8 + 3x\)
The derivative dy/dx is the rate of change of y with respect to x.
\(Here, y = f(u) = 8 + 3u; u = g(x) = x.
Hence, dy/dx = df/du * du/dxdf/du = d/dx(8 + 3u) = 0 + 3(du/dx) = 3du/dxAnd, du/dx = d/dx(x) = 1(dy/dx) = df/du * du/dx = 3(1) = 3\)
\(∴ The derivative dy/dx = df/du * du/dx = 3.\)
\(2) Given that y = (2 - x²)³\)To find the composite function in form f(g(x)), we identify the inner function as g(x) and the outer function as f(u).
\(Here, u = g(x) = 2 - x² and y = f(u) = u³= (g(x))³ = (2 - x²)³\)
\(∴ The composite function in form f(g(x)) is f(g(x)) = (2 - x²)³\)
\(To find the derivative dy/dx, we use the chain rule. dy/du = d/dx(u³) = 3u²(du/dx)dy/dx = dy/du * du/dxdy/dx = d/dx[(2 - x²)³] = 3(2 - x²)²(d/dx[2 - x²])= -6x(2 - x²)²(dy/dx) = dy/du * du/dx = 3u²(-6x)dy/dx = -18x(2 - x²)²3)\)
\(Given that f(x) = (7x⁶ + 2x³)⁴\)
To find the derivative of the function, we apply the chain rule and power rule.\(dy/dx = d/dx[(7x⁶ + 2x³)⁴]= 4(7x⁶ + 2x³)³(d/dx[7x⁶ + 2x³])\)=dy/dx = d/dx[(7x⁶ + 2x³)⁴]= 4(7x⁶ + 2x³)³(d/dx[7x⁶ + 2x³])
∴ \(The derivative of the function is dy/dx = 6x²(7x⁴ \(∴\)
\(The composite function in form f(g(x)) is f(g(x)) = (2 - x²)³\)+ 1)(7x⁶ + 2x³)³\)
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The derivative of the given function is dF(x)/dx = 6x²(7x⁶ + 2x³)³(42x³ + 1).
1) The given function is y = 8 + 3x. In the composite function f(g(x)), the inner function is g(x) and the outer function is f(u). Let u = g(x). Therefore, u = x. So, y = 8 + 3u. Thus, f(u) = 8 + 3u. Hence, the composite function is f(g(x)) = 8 + 3x. To find dy/dx, we have:dy/dx = f'(u) × g'(x)Here, f'(u) = 3 and g'(x) = 1So, dy/dx = 3 × 1 = 3.2) The given function is y = (2 - x²)³. In the composite function f(g(x)), the inner function is g(x) and the outer function is f(u). Let u = g(x). Therefore,
\(u = 2 - x². So, y = u³.\)
Thus, f(u) = u³. Hence, the composite function is f(g(x)) = (2 - x²)³.
To find dy/dx, we have:dy/dx = f'(u) × g'(x)
Here, f'(u) = 3u² and g'(x) = -2x
So, \(dy/dx = f'(u) × g'(x) = 3(2 - x²)² × (-2x) = -6x(2 - x²)².3)\)
The given function is F(x) = (7x⁶ + 2x³)⁴.
To find the derivative, we have:
\(dF(x)/dx = 4(7x⁶ + 2x³)³ × (42x⁵ + 6x²) = 6x²(7x⁶ + 2x³)³(42x³ + 1).\)
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HELP WILL MARK BRAINLIEST!!
y = x2 – 2x + 3
y = 2x – 3
Can someone help me with all of this, please!! :)
The correct answer is as follows:
B. Dilations take perpendicular lines to perpendicular lines since it preserves orientation.
C. Dilations of an angle are congruent to the original angle.
F. Dilations of a triangle are similar to the original triangle.
What is meant by dilations?A dilation is a transformation that yields a different-sized image with the same general shape as the original. Enlargements are dilations that result in a larger image. Reduction is the name for a dilation that shrinks the image.
Transformation exists the movement of a point from its initial location to a unique location. Types of transformation exists rotation, reflection, translation and dilation.
Dilation is the increase or decrease in size of an object by a factor k. If k > 1, it is an enlargement but if k < 1, it is a decrease. Dilation preserves the orientation of an object but changes the size.
The correct answer is as follows:
B. Dilations take perpendicular lines to perpendicular lines since it preserves orientation.
C. Dilations of an angle are congruent to the original angle.
F. Dilations of a triangle are similar to the original triangle.
The complete question is:
Select all the true statements.
A Dilations always increase the length ofline segments.
B. Dilations take perpendicular lines to perpendicular lines.
C. Dilations of an angle are congruent to the original angle.
D. Dilations increase the measure of angles.
E. Dilations of a triangle are congruent to the original triangle.
F. Dilations of a triangle are similar to the original triangle,
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Which equation represents the line with slope – 2 that
passes through the point (-4, -5)?
Answer:
D. y+5 = -2(x+4)
Step-by-step explanation:
\( \large \boxed{y - y_1 = m(x - x_1)}\)
The equation above is point-slope form where x1 and y1 both are the point that the graph passes through ane m is slope as usual.
We are given the point (-4,-5) and slope of -2. We substitute these values in.
\( \large{y - ( - 5) = - 2(x - ( - 4))} \\ \large{y + 5 = - 2(x + 4)}\)
A box of oatmeal must contain 16 oz. The machine that fills the oatmeal boxes is set so that, on the average, a box contains 16. 5 oz. The boxes filled by the machine have weights that can be closely approximated by a normal curve. What fraction of the boxes filled by the machine are underweight if the standard deviation is 0. 3 oz?
The boxes filled by the machine are underweight if the standard deviation is 0. 3 oz is 0.62%
we are given a box of oatmean containing 16 oz, a machine that fille the oatmeal boxes on an average of 16.5 oz boxes and the boxes filled by the machine have weights that can be closely approximated by a normal curve, at last, we are given the standard deviation of 0. 3 oz .The formula we are referring to for calculating the z score is
z = x- mean /standard deviation , where x is the observed value
So for the standard value of 0.3 oz, z= 16-16.5/0.3 = -2.5
The probability for the score -2.5 is s 0.0062 or 0.62%
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As the sample size becomes larger, the sampling distribution of the sample mean approaches a.
As the sample size rises, the sample distribution approaches a normal distribution.
The sample distribution approaches a normal distribution as the sample size grows. The sampling distribution's mean equals the population's mean if the number of consecutive samples is "infinite".
The Gaussian distribution is the official name for the normal distribution. However, the word "normal" was coined in the nineteenth century after a scientific inquiry revealed that numerous natural events appeared to "deviate from normal" from their typical values.
In his 1889 work Natural Inheritance, naturalist Sir Francis Galton popularized the notion of normal variability as the standard curve.
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please ill give brainliest if correct
What is an equation of the line that passes through the point (-1,4) and is parallel to the line x+y=4x?
Answer:
Y= 14x+5
Step-by-step explanation:
if f represents the number of lots of fliptop pens to produce and t represents the number of lots of tiptop pens to produce, the linear programming model for this problem is:
The linear programming model for this problem is Max 1000F + 1000T
Given that,
If the quantity of flip top pens to be produced is f and the quantity of tiptop pens to be produced is t, then
Number of lots of Flip top pens to produce = F
Number of lots of Tip top pens to produce = T
Therefore, The linear programming formulation is given by:
Max 1000F + 1000T
s.t.
Plastic: 3F + 4T <= 39
Ink Assembly: 5F + 4T <= 45
Molding time: 5F + 2T <= 37
F, P >= 0
Hence, the linear programming model for this problem is Max 1000F + 1000P
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A car goes to point a to b in 3 hours and b to a in 5 hours. A to b are 150 km away what is the speed o car
Answer:
50km/h
Step-by-step explanation:
Given data
A-B
Time taken= 3 hours
Distance= 150km
B-A
Time taken= 5 hours
We know that
Speed= distance/time
Speed= 150/3
Speed= 50km/h
Hence the speed of the car is 50km/h
Write the vector ū in the form ai + bj, given its magnitude ||ū||| = 12 and the angle a = 12 it makes with the positive x – axis."
The vector ū can be represented in the form ū = 12 cos(12°)i + 12 sin(12°)j.
The vector ū can be expressed as a combination of the unit vectors i and j, where i represents the positive x-axis and j represents the positive y-axis. Given the magnitude of the vector ū = 12, we can determine its components by considering the trigonometric relationships between the magnitude, angle, and the x and y components.
The magnitude of a vector in the plane is given by the formula v = √(v₁² + v₂²), where v₁ and v₂ are the components of the vector in the x and y directions, respectively. In this case, ū = √(a² + b²) = 12, where a and b represent the components of the vector.
The given angle a = 12° represents the angle that the vector ū makes with the positive x-axis. Using trigonometric functions, we can determine the values of a and b. The x-component of the vector can be calculated using a = 12 cos(12°), where cos(12°) represents the cosine function of the angle. Similarly, the y-component of the vector can be calculated using b = 12 sin(12°), where sin(12°) represents the sine function of the angle.
Hence, the vector ū can be expressed as ū = 12 cos(12°)i + 12 sin(12°)j, where ai represents the x-component and bj represents the y-component of the vector.
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How many keys are required to fully implement a symmetric algorithm with 10 participants?
The number of keys required to fully implement a symmetric algorithm with 10 participants is: 45 (Option C)
What is a Symmetric Algorithm?Symmetric encryption or Algorithm is a kind of encryption that uses a single key (a secret key) to encrypt and decode electronic data.
The key must be exchanged between the organizations communicating using symmetric encryption so that it may be utilized in the decryption process.
What is the computation justifying the above result?The formula that determines the number of keys necessary for a symmetric algorithm is given as;
(n*(n-1))/2,
which is 45 in this situation, when n = 10.
That is
(10 * (10-1))/2
= 45.
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Full Question:
How many keys are required to fully implement a symmetric algorithm with 10 participants?
A. 10
B. 20
C. 45
D. 100
Can you help me with number 45 please ?
Answer:
h = 84
f = 132
g= 28
Step-by-step explanation:
h = 180 - 48 - 48 = 84
f = 180 - 48 = 132
g = 180 -132 - 20 = 28
DUE TODAY need help on all questions
The length of an arc with a central angle of 30° is π cm.
The area of a sector with a central angle of 20° is 50π/9 ft².
The length of the marked arc for the small circle is π/2 units.
The length of the marked arc for the big circle is 5π/6 units.
The area of the sector for the small circle is 3π/4 units².
The area of the sector for the big circle is 25π/12 units².
The ratio of the radii is equal to 3:5.
The ratio of the areas is equal to 9:25.
The ratio of the circumferences is equal to 3:5.
How to calculate the length of an arc?In Mathematics, the length of an arc formed by a circle is given by:
Arc length = 2πr × θ/360
Where:
r represents the radius of a circle.θ represents the central angle.With a radius of 6 cm and central angle of 30°, the length of an arc is given by this:
Arc length = 2π(6) × 30/360 = π cm.
How to calculate the area of a sector?Mathematically, the area of a sector can be calculated by using this formula:
Area of sector = θr²/2
Area of sector = θr²/2 = 20(π/180) × (10)²/2 = 50π/9 ft².
For the length of an arc of the small circle, we have:
Arc length = 2π(3) × 30/360
Arc length = π/2 units.
For the length of an arc of the big circle, we have:
Arc length = 2π(5) × 30/360
Arc length = 5π/6 units.
For the area of the sector of the small circle, we have:
Area of sector = θr²/2 = 30(π/180) × (3)²/2 = 3π/4 units²
For the area of the sector of the big circle, we have:
Area of sector = θr²/2 = 30(π/180) × (5)²/2 = 25π/12 units²
For the ratio of the radii, we have:
Ratio = 3/5 = 3:5.
For the ratio of the areas, we have:
Ratio = (3π/4)/(25π/12)
Ratio = (3π/4) × 12/25π
Ratio = 9/25 = 9:25.
For the ratio of the circumferences, we have:
Ratio = 6π/10π
Ratio = 3/5
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This question is from my final exam review:
Let n be a randomly selected integer from 1 to 15. Find P(n < 10 | n is prime). Round to the nearest hundredth and put your answer as a DECIMAL. So, if your answer is 37%, then put .37 in the answer box.
The probability P(n < 10 | n is prime) is 4/6, which simplifies to 2/3 or approximately 0.67 (rounded to the nearest hundredth).
To find the probability P(n < 10 | n is prime), we need to determine the number of prime integers less than 10 and divide it by the total number of integers from 1 to 15 that are prime.
The prime numbers less than 10 are 2, 3, 5, and 7. So, there are 4 prime numbers less than 10.
The total number of integers from 1 to 15 that are prime is 6 (2, 3, 5, 7, 11, and 13).
As a result, the chance P(n 10 | n is prime) is 4/6, which can be expressed as 2/3 or, rounded to the nearest hundredth, as around 0.67.
Thus, 0.67 is the answer.
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If KM=52 and NL=33, find LM
If the answer is a decimal, round to the nearest tenth
We need to find LM. Here, we can use the Pythagorean theorem to solve the given problem.Let’s assume, LM = x.We know that the Pythagorean theorem states that in a right triangle, the square of the hypotenuse is equal to the sum of the squares of the other two sides.
That is,if AC is the hypotenuse, AB and BC are the other two sides of a right triangle ABC, then according to the Pythagorean theorem:AB² + BC² = AC².Now, KM = AB = 52and NL = BC = 33And, LM = AC = x.Using the above information and Pythagorean theorem, we get:AB² + BC² = AC²52² + 33² = x²2704 + 1089 = x²3793 = x²Now, we need to find LM = √x² = x≈61.6 (rounded to the nearest tenth)Therefore, LM ≈ 61.6 (rounded to the nearest tenth).
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factorise:
a) 32x⁴-8y²
Answer:
8(2x² - y)(2x² + y)
Step-by-step explanation:
32\(x^{4}\) - 8y² ← factor out 8 from each term
= 8(4\(x^{4}\) - y²) ← difference of squares which factors in general as
a² - b² = (a - b)(a + b) , then
4\(x^{4}\) - y²
= \((2x^2)^{2}\) - y²
= (2x² - y)(2x² + y)
Thus
32\(x^{4}\) - 8y² = 8(2x² - y)(2x² + y)
What percent of the students ride on the bus ?
Find the missing angels
X=??
Answer:
x = 55°
Step-by-step explanation:
Since 35° + x° would be a right angle then you would subtract 35° from 90°
So x = 55°
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