Help please I’ll give you the brainliest I really got to get this done

It sounds like you may be experiencing a bug with your Alexa device. This is likely due to a software update or miscommunication between the device and the server.

To resolve this issue, you may need to restart your device by unplugging it from the power source and plugging it back in. You can also try clearing the cache of your device. Additionally, you may need to update the software of your device by visiting the Amazon website and downloading the most recent version of the software. If the issue persists, you may need to contact Amazon customer service for further assistance.

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The differential equation by variation of parameters, subject to the initial conditions y(0) can be found by homogeneous equation and by integrating it.

The solution to the differential equation by variation of parameters, subject to the initial conditions y(0), can be found by following these steps:
1. Separate the equation into homogeneous and particular parts.
2. Solve the homogeneous equation for its particular solution.
3. Construct a new auxiliary equation from the particular solution, integrating the particular solution with respect to the parameters.
4. Solve the auxiliary equation, again with respect to the parameters, and then integrate the result with respect to x.
5. Substitute the particular solution and the new parameters back into the original equation to solve it completely.
6. Substitute the initial condition y(0) to solve for the constants of integration.

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The number of terms in the expression is 3.

An algebraic expression is a set of numbers and letters that make up an expression that has a meaning, the letters are variables and the numbers are coefficients or independent terms, algebraic expressions can be part of an equation and model mathematical processes.

Let's write the algebraic expression

7x² + 5x + 5

As we can see this expression has some addition operations that cannot be solved because they differ from variable, but this helps us in a way to determine the number of terms and these are:

The expression has 3 terms

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This type of study is prospective cohort study.

Controls consist of individuals from the source population who do not have the outcome of interest. Case-base sampling (also known as "case-cohort" sampling): Controls are selected from the population at risk at the beginning of the follow-up period in the cohort study within which the case-control study was nested.

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Answer:

(6, - 5 )

Step-by-step explanation:

Given a point (x, y ) on the function then the corresponding point on the inverse is (y, x )

Given

(- 5, 6 ) lies on h(x) , then

(6, - 5 ) lies on \(h^{-1}\) (x)

The chi-square test of independence is typically used to analyze the relationship between two variables when both variables are nominal, the two variables have been measured on different individuals and the observations on each variable are within-subjects in nature. The answer is  D. all of the above

The chi-square test of independence is a statistical test that is used to determine if there is a significant association between two categorical variables. It is commonly used when both variables are nominal, meaning they consist of categories or groups rather than numerical values.

When conducting the chi-square test of independence, the data is typically collected by measuring the two variables on different individuals or units.

For example, researchers may collect data on the gender (nominal variable) and political affiliation (nominal variable) of different individuals and analyze whether there is a relationship between the two variables.

The test examines the observed frequencies of the different categories in a contingency table and compares them to the expected frequencies under the assumption of independence. If the observed and expected frequencies significantly differ, it suggests that there is an association between the two variables.

Therefore, the chi-square test of independence is applicable when both variables are nominal and the data is collected on different individuals. This allows researchers to investigate the relationship between the variables and determine if they are associated or independent.

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The explicit rule for the geometric sequence 3, 12, 48,... is:

f(n) = \(3 \times 4^{(n-1)\). B.

The explicit rule for the geometric sequence 3, 12, 48,... need to determine the common ratio, r.

We can do this by dividing any term by the previous term:

r = 12/3

= 48/12

= 4

Now that we know the common ratio can use the formula for the nth term of a geometric sequence:

\(a_n\) = \(a_1 \times r^{(n-1)\)

where:

\(a_n\) is the nth term

\(a_1\) is the first term (3 in this case)

r is the common ratio (4 in this case)

n is the term number

Substituting these values into the formula, we get:

\(a_n\) = \(3 \times 4^{(n-1)\)

So, the explicit rule for the geometric sequence 3, 12, 48,... is:

f(n) = \(3 \times 4^{(n-1)\)

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The domain of the function \(f(x) = \sqrt{\frac{1}{3}x + 2\) is (d) x  ≥ -6

From the question, we have the following parameters that can be used in our computation:

\(f(x) = \sqrt{\frac{1}{3}x + 2\)

Set the radicand greater than or equal to 0

So, we have

1/3x + 2 ≥ 0

Next, we have

1/3x  ≥ -2

So, we have

x  ≥ -6

Hence, the domain of the function is (d) x  ≥ -6

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The height of the entire screen as per the given data is approximately equal to 1.568 meters.

To find the height of the entire screen, we can use the trigonometric properties of angles of elevation and depression.

Let's denote the height of the screen as h.

Given:

Distance from Lena to the screen = 8 meters

Angle of elevation to the top of the screen = 11°

Angle of depression to the bottom of the screen = 51°

We can set up two right triangles to represent the situation. One triangle for the angle of elevation and another for the angle of depression.

In the triangle for the angle of elevation, we have:

Opposite side = h (height of the screen)

Adjacent side = 8 meters (distance from Lena to the screen)

Using the tangent function:

\(tan(11) = h / 8\)

In the triangle for the angle of depression, we have:

Opposite side = h (height of the screen)

Adjacent side = 8 meters (distance from Lena to the screen)

Using the tangent function:

\(tan(51) = h / 8\)

Now we can solve these two equations simultaneously to find the value of h.

\(tan(11) = h / 8\\tan(51) = h / 8\)

Solving for h, we have:

h = 8 * tan(11°) = 1.568 meters (rounded to 3 decimal places)

Therefore, the height of the entire screen is approximately 1.568 meters.

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Answer:

If I am correct then the answer should be 268 in2

Step-by-step explanation:

Answer:

B. S

Step-by-step explanation:

Its point S because its in the center of the circle.

Answer: B. S

Step-by-step explanation:

S is the center point of the circle. A and M are both points on the outside of the circle, and segment AS is a radius.

Answer:

Each balloon costs $1

Each banner costs $2

Step-by-step explanation:

First of all, let's write down the equation from this problem.

Let "y" be the cost of the ballon, and let "x" be the cost of a banner. Then the following is true from the question...

4y + 2x = 8

6y + x = 8

Now since both of them are equal to 8 both of them are equal to each other, and so we can get the following equation...

4y + 2x = 6y + x

2x - x = 6y - 4y

x = 2y

Now if we substitute 2y instead of x in one of the previous equations we will obtain...

6y + x = 8

6y + 2y = 8

8y = 8

y = 1

From the equation x = 2y we know that...

x = 2y

x = 2(1)

x = 2

\(( {x}^{2} -2x + 3)(x + 1) \\ {x}^{3} - 2 {x}^{2} + 3x + {x}^{2} - 2x + 3 \\ {x}^{3} - {x}^{2} + x + 3\)

Therefore, the answer is the first choice.

Step-by-step explanation:

option A is the correct answer of this question

Answer:

D

Step-by-step explanation:

I got it on the test

The measure of ∠ABC in the triangle below is 60°

Triangle is a polygon with three sides and three angles. The sum of angles in a triangle is 180°.

∠ACB + 135 = 180° (Sum of angles in a straight line)

∠ACB = 45°

In triangle ABC:

∠ABC + ∠ACB + ∠CAB  = 180° (Sum of angle in a triangle)

∠ABC + 75 + 45 = 180

∠ABC = 60°

The measure of ∠ABC in the triangle below is 60°

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Answer:

96

Step-by-step explanation:

Answer:

Let's first turn this into an equation. We are told 48 divided by the sum of 5 and a certain number we will call x equals three. This gives:

48/5+3 = 3

From here, we just need to isolate and solve for x. This is done as follows:

1) Multiply (5+x) by both sides to get it out of the denominator:

48=3(5+x)

2) Distribute the three to the binomial:

48=15+3x

3) Subtract 15 from both sides:

33=3x

4) Divide both sides by 3:

x=11

Finally verify we are correct by dividing 48 by 16 (the sum of 5 and x, our solution) to get 3.

Step-by-step explanation:

BRAINLIEST?

Answer:

(-15,3) (2,-11) (-3,-7) (12,4)

Step-by-step explanation:

tell me if im wrong

Answer is attached in file, Thank you for joining brainly community

Edit- The answer is according to question before questioner edited, its not a wrong solution just diffrent question

After six​ months, the​ subjects' symptoms are studied and compared. Answer parts​ are given below.

An assumption or concept is given as a hypothesis for the purpose of debating it and testing if it might be true.

Given:

A pharmaceutical company wants to test the effectiveness of a new allergy drug.

The company identifies 250 females​ 30–35 years old who suffer from severe allergies.

The subjects are randomly assigned into two groups.

One group is given the new allergy drug and the other is given a placebo that looks exactly like the new allergy drug.

After six​ months, the​ subjects' symptoms are studied and compared.

Here, 30-35 year-old girls are used to test the new allergy medication's effects.

(a)

Females between the ages of 30 and 35 who are the test subjects are the experimental units.

The new allergy medication, whose results are being studied, is the remedy.

It's best to choose C.

(b)

A bias may develop if a researcher or patient knows whether subjects received a medication or a placebo.

In this case, choice B is preferable.

(c)

If neither the researcher nor the subject knew whether they were receiving a medicine or a placebo, the study would be considered double-blind.

In this case, choice A is preferable.

Therefore, all the correct choices are given above.

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The complete question is given in the image.

Nikki applied to 3x colleges.

To determine the number of colleges Nikki applied to, we need to multiply the number of colleges Diego applied to by 3. Hence, the answer is represented by the mathematical expression 3x.

In this problem, 'x' represents the number of colleges Diego applied to. Nikki, on the other hand, applied to 3 times as many colleges as Diego did.

So, to find out the total number of colleges Nikki applied to, we multiply the number of colleges Diego applied to ('x') by 3.

Hence, the correct mathematical expression for the number of colleges Nikki applied to would be 3x.

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Answer:

2/3 can be classified as..

Step-by-step explanation:

It can be classified as a rational number because it can be in the form of p/q as of fraction and is made up of two integers making p the numerator and for q a denominator not involving a zero.

Answer:

real

rational

Step-by-step explanation:

The formula for Average Fixed Cost (AFC) is: AFC = FC / Q. Where FC represents the total fixed costs incurred by a firm and Q represents the quantity of output produced by the firm.

AFC is a per-unit measure of the fixed cost of production, and represents the amount of fixed cost that is attributed to each unit of output. As the quantity of output increases, the AFC decreases, since the fixed costs are spread out over a larger number of units. AFC is an important concept in economics and business, as it is used to calculate other cost measures such as average total cost and average variable cost.

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Answer: 20

Step-by-step explanation:

18/20 %90

Answer:

-y-1=3

Step-by-step explanation:

Answer:

-y-1=3

Step-by-step explanation:

took the test and got it correct

Answer:

if you use trigonometry

\( sin { }^{ - 1} (63 \div 65)\)

which is 75.7499 degrees

The slope of the line that passes through the given points (1, -1) and (-8, -7) as required is; 2 / 3.

It follows from the task content that the slope of the line which passes through the given points is to be determined.

Since the slope formula, m = (y2 - y1) / (x2 - x1)

Therefore, the slope of the line in discuss is;

Slope, m = (-7 -(-1)) / ( -8 -1)

m = -6 / -9

m = 2 / 3.

Hence, the slope of the line that passes through the points in discuss is; 2 / 3.

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The proportion of scores below 12.5 in a normally distributed population with a mean of 10 and a standard deviation of 2 can be calculated using the Z-score and the standard normal distribution table. In this case, we need to find the area under the curve to the left of the value 12.5.

The Z-score is calculated as (X - μ) / σ, where X is the value we want to find the proportion for, μ is the mean, and σ is the standard deviation. Substituting the given values, we have (12.5 - 10) / 2 = 1.25.

Using the standard normal distribution table or a statistical calculator, we can find that the area to the left of a Z-score of 1.25 is approximately 0.8944. Therefore, the proportion of scores below 12.5 is approximately 89.44%.

In a normal distribution, the Z-score measures the number of standard deviations a value is from the mean. By calculating the Z-score for the value 12.5, we can use the standard normal distribution table to find the proportion of scores below that value.

The table provides the cumulative probability up to a certain Z-score. In this case, the Z-score of 1.25 corresponds to a cumulative probability of approximately 0.8944.

Since the normal distribution is symmetric, the proportion of scores above 12.5 is equal to the proportion below the mean minus the proportion below 12.5.

Hence, subtracting 0.8944 from 1 (or 100%) gives us approximately 0.1056 or 10.56%. Therefore, the proportion of scores below 12.5 is approximately 89.44%.

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