find the solution of the given initial value problem y'' 2y' 2y = dirac delta(t-pi); y(0)=4, y'(0) = 2
Answers
The solution to the given initial value problem, y'' 2y' + 2y = δ(t-π), with y(0) = 4 and y'(0) = 2 is given by: y(t) = 4 + 2t + e-t (1 + eπ-t)-1.
To arrive at this answer, we must use the definition of the Dirac delta function to solve the given equation. We know that δ(t-π) = 0 for all t ≠ π, and that it is an impulse at t = π. This means that the left side of the equation (y'' 2y' + 2y) is equal to 0 for all t ≠ π. This equation can be solved using the method of undetermined coefficients, and the general solution of this homogeneous equation is yh = c1et + c2e-t.
To solve for the particular solution of this equation, we use the given initial conditions of y(0) = 4 and y'(0) = 2. Using this information, we solve for the constants c1 and c2 in the general solution and the particular solution is yp = 4 + 2t + e-t (1 + eπ-t)-1. This is the solution to the given initial value problem.
know more about Dirac delta function here
https://brainly.com/question/31045120#
#SPJ11
Related Questions
Select the expression that is equivalent to 48 + 12.
Answers
Answer:
Where are the expressions?
Answer:
48+12=60
60÷2=30
your answer is 30+30
un camion lleva 2 646 kilos de naranja en 147 cajas. ¿ cuantos kilos pesa cada caja?
por faaaa ayuda....
Answers
18 Kilos
Step-by-step explanation:
2646 /147 = 18
Which of the following functions are linear?
Function A
x 3 6 9 12 15
y 9 36 81 144 225
Function B
x 5 10 15 20 25
y 8 16 24 32 40
A. Function A
B. Function B
C. Function A and Function B
D. None of the above
Answers
Answer:
answer B is the right answer.
Step-by-step explanation:
Function A has the form of y = x² , which is NOT linear but quadratic.
Function B has the form of y = 8/5x which is linear.
So answer B is the right answer .
The function which is linear is Function B which is f ( x ) = ( 8/5 )x
What is a function rule?The function rule is the relationship between the input or domain and the output or range. A relation is a function if and only if there exists one value in the range for every domain value.
A function is a relation from a set of inputs to a set of possible outputs where each input is related to exactly one output.
Given data ,
Let the function be represented as A
Now , the value of A is
Function B
x 5 10 15 20 25
y 8 16 24 32 40
So , for every increase of 5 in x, y increases by 8, which can be written as the equation y = (8/5)x.
f ( x ) = ( 8/5 )x
Hence , the linear function is f ( x ) = ( 8/5 )x
To learn more about function rule click :
https://brainly.com/question/3760195
#SPJ3
Suppose that there are two assets that are available for investment and an investor has the following expected utility:
EU = E(Rp) − 0.5A(\sigma)2p
where expected return and standard deviation are expressed in decimals. For example, if expected return is 25%, standard deviation is 15%, and risk aversion is 5, expected utility is computed as:
EU =0.25−0.5*5*0.152 =0.1938
Now, assume that there is no other instrument (such as the risk-free security) available. Then, derive the analytical expressions for the optimal portfolio weights of the first and the second assets for this specific investor. (Hint: We are not talking about a numerical response here. Rather, you are asked to derive mathematically how you would compute for the optimal portfolio.)
Answers
To derive the analytical expressions for the optimal portfolio weights of the first and second assets, we need to maximize the expected utility function.
Let's assume the weights of the first and second assets are denoted by w1 and w2, respectively. Since there is no risk-free security available, the sum of weights must be equal to 1: w1 + w2 = 1.
To find the optimal portfolio weights, we need to maximize the expected utility function with respect to w1 and w2. This can be done using optimization techniques, such as Lagrange multipliers or calculus.
We can start by taking the derivative of the expected utility function with respect to w1 and set it equal to zero to find the critical points. Similarly, we take the derivative with respect to w2 and set it equal to zero.
Next, we solve these equations to find the values of w1 and w2 that satisfy the equations. These values will give us the optimal portfolio weights for the first and second assets.
Ihe analytical expressions for the optimal portfolio weights of the first and second assets can be derived by maximizing the expected utility function and solving the resulting equations.
To know more about weights , visit ;
https://brainly.in/question/9873207
#SPJ11
What is the distance between A and B?
Answers
Answer:
20
Step-by-step explanation:
-7-5=-12
-4-12=-16
AB^2=(-12)^2+(-16)^2
AB^2=144+256
Ab=
\( \sqrt{400} \)
Ab=20
The formula in finding the distance between two points is given below:
\( \boxed{\bold{\:\:d = \sqrt{(x_2 - x_1)^2 + (y_2 - y_1)^2} \:\:}}\)Now, you know the distance formula. So, let us try solving the given problem using the distance formula.
Problem: What is the distance between A(-4, -7) and B(12, 5)?
From inspection on the given problem:
\(\sf (x_1, y_1) = (-4, -7)\)\(\sf (x_2, y_2) = (12, 5)\)Substitute the given values into the distance formula and solve for AB:
\(\sf AB = \sqrt{(x_2 - x_1)^2 + (y_2 - y_1)^2}\)\(\sf AB = \sqrt{[12 - (-4)]^2 + [5 - (-7)]^2}\)\(\sf AB = \sqrt{(16)^2 + (12)^2}\)\(\sf AB = \sqrt{256 + 144}\)\(\sf AB = \sqrt{400}\)\(\bold{AB = 20 \: units}\)Therefore, the distance between two points is 20 units.
\(\\\)
Now, wasn't that easy? Try this sample problem:
Find the distance between P(1, 3) and Q(7, 11).From the sample problem above, you may solve it on your own to enhance your skill on calculating the distance.
For more information about the Distance Formula, just visit this link: https://brainly.com/question/18156437
Find the solution to the system. 5x +3y =45 −7x +3y =81
Answers
Answer:
Step-by-step explanation:
5x + 3y = 45 ----------- ( 1 )
-7x + 3y = 81 ----------- ( 2 )
5x + 3y = 45 --------- ( 1 )
7x - 3y = - 81 --------- ( 3 )
Adding ( 1 ) & ( 3 ) ; we get ,
12x = - 36
x = - 3
putting value of x in equation ( 2 ) ; we get ,
21 + 3y = 81
3y = 60
y = 20
Consider the case in which the proportionality constant C is equal to 1/2. Plot the graph of y=1/2x. How would you graph?
Answers
To graph the equation y = (1/2)x, we can plot points on a coordinate plane and connect them to create a straight line. Here's how to do it:
1. Choose some x-values to evaluate the equation. Let's select a range of x-values, such as -10, -5, 0, 5, and 10.
2. Substitute each x-value into the equation to find the corresponding y-values. For example:
- For x = -10, y = (1/2)(-10) = -5
- For x = -5, y = (1/2)(-5) = -2.5
- For x = 0, y = (1/2)(0) = 0
- For x = 5, y = (1/2)(5) = 2.5
- For x = 10, y = (1/2)(10) = 5
3. Plot the points (x, y) on a graph. In this case, the points would be:
(-10, -5), (-5, -2.5), (0, 0), (5, 2.5), (10, 5)
4. Connect the plotted points with a straight line. The line should pass through all the points.
The resulting graph is a straight line with a slope of 1/2, passing through the origin (0, 0), and extending infinitely in both directions.
Here is a rough sketch of the graph:
```
|
6 | .
| .
5 | .
| .
4 | .
|
3 | .
|
2 | .
|
1 | .
|
0 -----------------------
-10 -5 0 5 10
```
Note: The above graph is a visual representation and may not be to scale. The line should pass through the plotted points accurately.
To know more graph , refer here :
https://brainly.com/question/28583246#
#SPJ11
The regular price of a baseball cleats is $80. If the cleats are on sale for 45% off, then:
a) What is the value of the discount, in dollars?
b) What is the final selling price of the cleats, before tax?
Answers
b) The final selling price is 44 dollars
Which statements about the graphs of functions g(x) = −1/4x^2 and f(x) = x2 are true? Select all that apply.
A. g is wider than f.
B. f and g open in the same direction.
C. f and g have the same vertex.
D. f and g have the same axis of symmetry.
Answers
Answer: c and d
Step-by-step explanation:
A function assigns the values. The correct options are A, C, and D.
What is a Function?A function assigns the value of each element of one set to the other specific element of another set.
The statements that are true about the two functions g(x)=(−1/4)x² and f(x)=x² are,
A. g is wider than f.
C. f and g have the same vertex.
D. f and g have the same axis of symmetry.
Hence, the correct options are A, C, and D.
Learn more about Function:
https://brainly.com/question/5245372
#SPJ2
Troy uses 2 pints of stain on each table that he makes. How many tables can he paint with 1
gallon of stain?
Answers
Answer:
4 Tables
Step-by-step explanation:
there are 8 pints in one gallon and it uses two pints per table. 8/2= 4
You are on top of a building. You look down on the neighboring building at an angle of depression of 30 degrees. Your building is 100 feet tall. The buildings are 30 feet apart. How tall is the other building in feet rounded to the nearest tenth?
Answers
Rounded to the nearest tenth, the height of the neighbouring building is approximately 117.3 feet.
What is tangent function?The tangent function is a trigonometric function that relates the angle of a right triangle to the ratio of the length of its opposite side to the length of its adjacent side.
According to question:We can use trigonometry to solve this problem. Let h be the height of the neighbouring building in feet. Then, we can use the tangent function, which is defined as the opposite side (height of the neighbouring building) over the adjacent side (distance between the buildings),
to find h: tan(30°) = h/30
h = 30 * tan(30°)
h ≈ 17.3 feet
However, this value is the height from the ground to the top of the neighbouring building. Since we are on a 100-foot tall building, we need to add 100 feet to get the total height from the ground to our line of sight. Therefore, the height of the neighbouring building is approximately:
h + 100 ≈ 117.3 feetRounded to the nearest tenth, the height of the neighbouring building is approximately 117.3 feet.
To know more about tangent function visit:
https://brainly.com/question/29305357
#SPJ1
During a basketball game, Isaias attempted 20 baskets and made 6. What percent of the baskets that he attempted did he make?
Answers
Answer:
30% hope this is rightttt
T/F one or two extreme data points can have a dramatic effect on the size of a correlation.
Answers
Correlation measures the degree of association between two variables and outliers can distort the relationship between them.
Is the statement True or False?True. One or two extreme data points, also called outliers, can have a dramatic effect on the size of a correlation. This is because correlation measures the degree of association between two variables and outliers can distort the relationship between them.
Learn more about Correlation
brainly.com/question/30116167
#SPJ11
Mark has won a contest in which he will receive $10,000 at the end of each of the next 10 years and then $20,000 a year for 30 years after that. With an 8% discount rate, what is the present value of Mark's prize? Solution: $171,391.44
Answers
The present value of Mark's prize, considering the $10,000 annual payments for 10 years and the subsequent $20,000 annual payments for 30 years, with an 8% discount rate, amounts to $171,391.44.
To calculate the present value of Mark's prize, we need to determine the current worth of the future cash flows he will receive. The $10,000 annual payments for 10 years can be considered an annuity, while the subsequent $20,000 annual payments for 30 years can be viewed as a perpetuity starting from the 11th year.
First, we calculate the present value of the annuity using the formula for the present value of an ordinary annuity:
PV_annuity = \(C * [1 - (1 + r)^(-n)] / r\),
where PV_annuity is the present value of the annuity, C is the annual cash flow, r is the discount rate, and n is the number of years. Plugging in the values, we have:
PV_annuity = $10,000\(* [1 - (1 + 0.08)^(-10)] / 0.08\) = $85,394.45.
Next, we calculate the present value of the perpetuity using the formula for the present value of a perpetuity:
PV_perpetuity = C / r,
where PV_perpetuity is the present value of the perpetuity. Plugging in the values, we have:
PV_perpetuity = $20,000 / 0.08 = $250,000.
Finally, we sum up the present values of the annuity and the perpetuity to obtain the total present value:
Total present value = PV_annuity + PV_perpetuity = $85,394.45 + $250,000 = $335,394.45.
Therefore, with an 8% discount rate, the present value of Mark's prize is $171,391.44.
Learn more about rate here:
https://brainly.com/question/25309291
#SPJ11
yes ik the picture is dark but pls help ike PLEASE HELP ME THIS IS URGENT I WILL GIVE BRAINLIEST
Answers
Answer:
a. Similar
Step-by-step explanation:
The question says the triangles are right triangles, so they can't be obtuse or equilateral.
Since they are both right triangles, they both have a 90° angle. And as stated in the question, they both have a 30° angle. By Angle-Angle (AA) they are similar. But we don't know anything about any sides in either triangle, so we don't know if they are congruent or not. Just we can only know they are similar.
A weight is attached to a spring and reaches its equilibrium position(x=0). It is then set in motion resulting in a displacement of x=8 cos t, where x is measured in centimeters and t is measured inseconds.a) What is the spring
Answers
When the weight moves from x = -8 cm to x = 8 cm, the spring moves from its maximum stretched position to its maximum compressed position.Hence, the spring oscillates between its maximum stretched and compressed positions when the weight is set in motion. Therefore, the spring is a simple harmonic oscillator.
Given: Displacement x
= 8 cos t
= Acos(ωt+ φ) where A
= 8 cm, ω
= 1 and φ
=0. To find: What is the spring?Explanation:We know that displacement is given by x
= 8 cos t
= Acos(ωt+ φ) where A
= 8 cm, ω
= 1 and φ
=0.Comparing this with the standard equation, x
= Acos(ωt+ φ)A
= amplitude
= 8 cmω
= angular frequencyφ
= phase angleWhen the spring is at equilibrium position, the weight attached to the spring does not move. Hence, no force is acting on the weight at the equilibrium position. Therefore, the spring is neither stretched nor compressed at the equilibrium position.Now, the spring is set in motion resulting in a displacement of x
= 8 cos t
= Acos(ωt+ φ) where A
= 8 cm, ω
= 1 and φ
=0. The maximum displacement of the spring is 8 cm in the positive x direction. When the weight is at x
= 8 cm, the restoring force of the spring is maximum in the negative x direction and it pulls the weight towards the equilibrium position. At the equilibrium position, the weight momentarily stops. When the weight moves from x
= 8 cm to x
= -8 cm, the spring moves from its natural length to its maximum stretched position. At x
= -8 cm, the weight momentarily stops. When the weight moves from x
= -8 cm to x
= 8 cm, the spring moves from its maximum stretched position to its maximum compressed position.Hence, the spring oscillates between its maximum stretched and compressed positions when the weight is set in motion. Therefore, the spring is a simple harmonic oscillator.
To know more about oscillator visit:
https://brainly.com/question/15780863
#SPJ11
The displacement of the weight attached to the spring is given by the equation x = 8 cos t. The amplitude of the motion is 8 centimeters and the period is 2π seconds.
Explanation:The equation x = 8 cos t represents the displacement of a weight attached to a spring in simple harmonic motion. In this equation, x is measured in centimeters and t is measured in seconds.
The amplitude of the motion is 8 centimeters, which means that the weight oscillates between x = 8 and x = -8.
The period of the motion can be determined from the equation T = 2π/ω, where ω is the angular frequency. In this case, ω = 1, so the period T is 2π seconds.
Learn more about Simple Harmonic Motion here:https://brainly.com/question/35900466
#SPJ12
13. For a given set of data, what does the standard deviation measure?
The difference between the mean and the data point farthest from the mean
The difference between the mean and the data point nearest to the mean
The difference between the mean and the median
None of the above
Source
Answers
The standard deviation measures the spread of data points around the mean. It considers all data points, not just the farthest or nearest ones. A higher standard deviation indicates a greater spread.
The standard deviation is a statistical measure that tells us how much the data points in a set vary from the mean. It provides information about the spread or dispersion of the data. To calculate the standard deviation, we take the square root of the variance, which is the average of the squared differences between each data point and the mean.
By considering all data points, the standard deviation provides a comprehensive measure of how spread out the data is. Therefore, the statement "The difference between the mean and the data point farthest from the mean" is incorrect, as the standard deviation does not focus on just one data point.
The statement "The difference between the mean and the data point nearest to the mean" is also incorrect because the standard deviation takes into account the entire data set. The statement "The difference between the mean and the median" is incorrect as well, as the standard deviation is not specifically related to the median.
Hence, the correct answer is "None of the above."
To know more about Mean visit.
https://brainly.com/question/31101410
#SPJ11
mountain mack spends his time carving fishing lures and duck decoys. if mountain mack spends all of his time carving fishing lures he can carve 60 lures in a week. if he spends all of his time carving duck decoys he can carve 50 decoys in a week. for every 10 duck decoys mountain mack carves he must give up 12 fishing lures.
Answers
Mountain Mack can carve 60 fishing lures and 50 duck decoys in a week.
Let's denote the number of fishing lures carved by Mountain Mack as "L" and the number of duck decoys carved as "D". Based on the given information, we can set up a system of equations: When Mountain Mack spends all his time carving fishing lures, he can carve 60 lures in a week:
L = 60
When Mountain Mack spends all his time carving duck decoys, he can carve 50 decoys in a week:
D = 50
For every 10 duck decoys carved, Mountain Mack must give up 12 fishing lures:
12 * (D / 10) = L
Now, let's solve the system of equations to find the values of L and D.
From equation (3), we can simplify it as:
12 * (D / 10) = L
12D/10 = L
6D/5 = L
Substituting L = 60 into the equation above:
6D/5 = 60
Solving for D:
6D = 5 * 60
D = 300/6
D = 50
So, we find that D = 50, which matches the information given.
Now, substituting D = 50 into equation (2):
L = 6D/5 = 6 * 50/5 = 60
Therefore, L = 60, which also matches the information given. Hence, the values of L and D satisfy all the given conditions.
To know more about Mountain Mack,
https://brainly.com/question/4970009
#SPJ11
A particular company's net sales, in billions, from 2008 to 2018 can be modeled by the expression t2 10t 68, where t is the number of years since the end of 2008. what does the constant term of the expression represent in terms of the context?
Answers
The company earned 68 billion dollars from 2008 to 2018.
According to the statement
we have given that the company's particular sales in expression are represented by (t² + 10t + 68)
And we have to find the constant terms in this expression which represent the sale of the company.
So, The given expression is (t² + 10t + 68)
From above expression it is clear that the it is in the form of Quadratic Equations.
So, The Quadratic equation, is an equation containing a single variable of degree 2. Its general form is ax^2 + bx + c = 0, where x is the variable and a, b,c are the known numbers and C is the Constant.
The general representation of Quadratic equation is
ax^2 + bx + c = 0 -(1)
and the given expression are
(t² + 10t + 68) -(2)
After comparing both equations
Here C =68 = Constant.
So, 68 is the Constant term of the expression represent in terms of the context.
Learn more about Quadratic Equation here https://brainly.com/question/1214333
Disclaimer: The question was incomplete. Please find the full content below.
Question:
A particular company's net sales, in billions, from 2008 to 2018 can be modeled by the expression t2 + 10t + 68, where t is the number of years since the end of 2008. What does the constant term of the expression represent in terms of the context?
The company earned 68 billion dollars from 2008 to 2018.
The company earned 68 billion dollars in 2008.
The company earned 10 billion dollars from 2008 to 2018.
The company earned 10 billion dollars in 2008.
#SPJ4
The builder plans to use 0.25 of the land for a park. How many acres will
he use for the park?
6.125.
Part B
He buys a second property that has 0.62 times as many acres as the first property. How many acres of land does the second property have?
Answers
For the park: 6.125 acres * 0.25 = 1.53125 acres
For the second property: 6.125 acres * 0.62 = 3.7975 acres
The builder plans to use 0.25 of the 6.125-acre land for a park. To determine how many acres will be used for the park, we need to multiply the total land area (6.125 acres) by the fraction allocated for the park (0.25). The calculation is as follows: 6.125 acres * 0.25 = 1.53125 acres. Therefore, the builder will use 1.53125 acres of land for the park.
For Part B, the builder buys a second property with 0.62 times as many acres as the first property. To find out how many acres the second property has, we need to multiply the first property's total acres (6.125 acres) by 0.62. The calculation is as follows: 6.125 acres * 0.62 = 3.7975 acres. So, the second property has 3.7975 acres of land.
To know more about the builder plans visit:
https://brainly.com/question/930660
#SPJ11
PLEASE HELP ASAP! I'd really appreciate it! brainliest answer! Ignore what I clicked, I accidentally hit it
Answers
Answer:
46
Step-by-step explanation:
Angle Formed Outside = 1/2(Difference of Intercepted Arcs)
The arcs are 226 and (360 -226 =134)
y = 1/2 ( 226 - 134)
y = 1/2( 92)
y =46
Does the graph represent a function?
Answers
Answer:
The graph does represent a function because it passes the vertical line test!
Step-by-step explanation:
A vertical line test means if you put a vertical line over any area on the graph it shouldn't hit the line more than once :)
★ {1} Statistics shows that four out of every 100 new radios breakdown within the first year. What's the probability of buying a radio which does not breakdown in the first year.
Answers
Answer:
96%
Step-by-step explanation:
4 of 100 breakdown
so 96 of 100 do not
96/100 = 96%
Find the slope of the line that contains (2, - 10) and (-4, 2).
Answers
Answer: m = -2
Step-by-step explanation:
Slope formula: \(\frac{y2-y1}{x2-x1}\)
Plug in the numbers to the slope formula: \(\frac{2- -10}{-4 - 2} = \frac{2+10}{-4-2}\)
Reduce: \(\frac{12}{-6} = \frac{6}{-3} = -2\)
A triangular prism is 5 centimeters long and has a triangular face with a base of 6 centimeters and a height of 4 centimeters. the other two sides of the triangle are each 5 centimeters. what is the surface area of the triangular prism?
Answers
The surface area of the given triangular prism is 99 square centimeters. The surface area of the triangular prism can be calculated by finding the areas of its individual faces and adding them together.
The surface area consists of the area of the two triangular faces and the area of the three rectangular faces.
To calculate the surface area of the triangular prism, we first need to determine the areas of its individual faces.
Triangular Faces:
The triangular prism has two triangular faces. The area of a triangle can be found using the formula: A = (base * height) / 2. In this case, the base of each triangular face is 6 centimeters and the height is 4 centimeters. Therefore, the area of each triangular face is (6 * 4) / 2 = 12 square centimeters.
Rectangular Faces:
The triangular prism has three rectangular faces. The area of a rectangle can be found using the formula: A = length * width. In this case, the length of each rectangular face is 5 centimeters, and the width is the same as the length of the triangular prism, which is 5 centimeters. Therefore, the area of each rectangular face is 5 * 5 = 25 square centimeters.
To find the total surface area, we add the areas of all the faces together:
Total Surface Area = 2 * Area of Triangular Face + 3 * Area of Rectangular Face
= 2 * 12 + 3 * 25
= 24 + 75
= 99 square centimeters.
Therefore, the surface area of the given triangular prism is 99 square centimeters.
Understanding the surface area of a geometric solid like a triangular prism is essential for various applications, such as calculating material requirements for construction or designing packaging. By decomposing the prism into its individual faces and calculating their areas, we can determine the total surface area. This information is valuable for estimating costs, determining paint or coating requirements, or understanding the overall dimensions of the object.
To learn more about surface area, click here: brainly.com/question/20771646
#SPJ11
the owner of a large car dealership believes that the financial crisis decreased the number of customers visiting her dealership. the dealership has historically had 800 customers per day. the owner takes a sample of 100 days and finds the average number of customers visiting the dealership per day was 750. assume that the population standard deviation is 350. to determine whether there has been a decrease in the average number of customers visiting the dealership daily, the appropriate hypotheses are .
Answers
The average number of customers visiting the dealership daily, the appropriate hypotheses are HA: µ < 800
The hypotheses are:
H0: µ = 800
HA: µ < 800 (claim)
The mean number of daily customers was 800. She feels the number of customers has decreased, so the alternate is mu is less than 800.
for the given values we can find test statistics:
A test statistic is a number calculated by a statistical test. It describes how far your observed data is from the null hypothesis of no relationship between variables or no difference among sample groups.
The general form of test statistics:
\(Z=\frac{x-u}{\frac{sd}{\sqrt{n} } } --------(1)\)
we have all values
x=750 u= 800 sd=350 n=100
substitute in equation(1)
\(Z=\frac{750-800}{\frac{350}{\sqrt{100} }}=-1.43\)
Z=-1.43
To know more about test statistics:
https://brainly.com/question/12489895
#SPJ4
what are all possible exterior angles of an isosceles triangle with a base angle of 31°
Answers
Answer:
so first we will find the interior angle:
1 angle : 31 (given )
2 angle :31 ( the base angles of isoscles triangle are equal)
3 angle : 31 + 31 + x = 180 ( angle sum property of triangle)
x = 180 - 62 = 118
now the exterior angles :
1 angle : 180 - 31 = 149 ( exterior angle and the angle adjacent usually forms a line (= 180) )
2 angle : 149 ( same reason as the first)
3 angle : 180 - 118 = 62 ( same reason as the first)
( i dont know if there is any other way, but this is one)
You have just signed up for a broadband home internet service that uses coaxial cable. which connector type will you most likely use?
Answers
Answer:
F type connector
Step-by-step explanation:
Use an F-type connector for broadband cable connections that use coaxial cable.
The F connector is a coaxial RF connector commonly used for "over the air" terrestrial television, cable television and universally for satellite television and cable modems,
#SPJ4
Learn more on
https://brainly.com/question/14391417
F type connector
The F-connector is a coaxial RF connector commonly used for "wireless" terrestrial television, cable television, and common for satellite television and cable modems, usually with RG-6/U cable or with RG -59 / U.F connector is also known as threaded connector. There are two main types: 7mm (6.8mm) is the most common and used in coaxial cable, and 5mm connector is used in thin coaxial cable commonly used in satellite system.
The F-connector is an accessory that connects a coaxial cable to an electronic device or wall outlet.
Type F connectors are highly mechanical and electrically stable coaxial screw connectors for cable television (CATV), set-top boxes, cable modems and satellite television applications up to 4 GHz
Learn more about wire here
https://brainly.com/question/15246898
#SPJ4
3x^2+x^2-2
What is the polynomial??? Need help asap
Answers
Answer:
8x-2
Step-by-step explanation:
3x^2+x^2-2
=6x+2x-2
=8x-2
Instructions: Based on the scale of measurement for the data, identify if a test is parametric or nonparametric.
A researcher measures the proportion of schizophrenic patients born in each season.
A researcher measures the average age that schizophrenia is diagnosed among male and female patients.
A researcher tests whether frequency of Internet use and social interaction are independent.
A researcher measures the amount of time (in seconds) that a group of teenagers uses the Internet for school-related and non-school-related purposes.
Please provide reasoning for your answer.
Answers
It is important to consider the scale of measurement and the specific characteristics of the variables when selecting an appropriate statistical test.The tests can be classified as follows:
1. A researcher measures the proportion of schizophrenic patients born in each season.
This test is nonparametric. The scale of measurement is categorical, as the seasons (spring, summer, fall, winter) represent distinct categories rather than continuous numerical values. Therefore, parametric assumptions, such as normality and equal variances, do not apply to this measurement.
2. A researcher measures the average age that schizophrenia is diagnosed among male and female patients.
This test is parametric. The scale of measurement is continuous and numerical (age in years). Parametric tests, such as t-tests or ANOVA, can be applied when working with continuous data, assuming the data meet the required assumptions (e.g., normality, independence, and equal variances).
3. A researcher tests whether frequency of Internet use and social interaction are independent.
This test can be both parametric or nonparametric, depending on the measurement scale and the specific statistical test used. If the variables are measured on a nominal or ordinal scale, nonparametric tests, such as the chi-square test, would be appropriate. If the variables are measured on a continuous scale, parametric tests, such as logistic regression, could be employed.
4. A researcher measures the amount of time (in seconds) that a group of teenagers uses the Internet for school-related and non-school-related purposes.
This test is parametric. The scale of measurement is continuous (time in seconds), and parametric tests, such as t-tests or ANOVA, can be utilized to compare means or variances, assuming the required assumptions are met.
know more about researcher :brainly.com/question/24174276
#SPJ11