Without solving for the undetermined coefficients, the correct form of a particular solution of the differential equation y" + 4y = cos (2x) is Select the correct answer. y_p = A cos (2 x) y_p = A cos (2 x) + B sin (2x) y_p = A x cos (3x) y_p = A x cos (2x) + B sin (2x) y_p = A x cos (2x) + B x sin (2x)

Answer:

The answer is A) \(y=4x\)

Step-by-step explanation:

This is because y directly corresponds to x, if x is 1, then y = 4, if x is 2, then y = 8 and so on.

There were 644 downloads of the standard version

Let x represent the standard version's download size

Then high quality's download size will be (4784 - x)

The high quality was downloaded 4 times, so 4 * 4.5 = 18 mb

Then the equation for the ratios below is correct

Solving for x

There were 644 downloads of the standard version

Answer:

I believe he traveled 200 miles

Step-by-step explanation:

Multiply 40 by 5

Answer:

b6 2hich method

Step-by-step explanation:

I solv3 this

Answer: 4.126 km

Step-by-step explanation:

First, We have to find total span of both bridges

As Question indicates 'total' ,that is, we have to find bridge length in total ( You can join Bridges to have better understanding)

Now, Walkway over hundson Bridge length= 2.063 km

Amping bridge length= 2.07 km

So, Total span of both bridges = 2.063+2.07 = 4.133 km

b) Now Leah wanna walk across and back on walkway over hudson ,that is, she wanna return to starting point from where she walk forth

So,that means, she walk double distance of length of walkway over hudson

So, total distance = 2× 2.063

= 4.126 km

hope this helps,

Plzzs give brainliest if you like my answer.

Solution

T = A + B

=> T = 750 + 165N + 385N

=> T = 750 + 550N

Answer:

g(x) will be dilated horizontally to get f(x)

Step-by-step explanation:

Given

f(x) = g(kx) --> the correct equation

Required

The effect of k

The given equation is an illustration of horizontal dilation.

If |k| is greater than 0, then the function will be compressed.

However, if |k| is between 0 and 1 (exclusive), then the function will be stretched.

Take for instance:

f(x) = g(x/5)

In the above function, g(x) will be stretched by 5 units

Another instance is:

f(x) = g(x/0.5)

In the above function, g(x) will be stretched by 0.5 units

Answer:

160 m/s

Step-by-step explanation:

vi= 10m/s

a= 5om/s*2

t=3 second

vf=?

frist step: find s(distance)

s=vit+1/2 at*2=10m/s x3s +0.5 x50m/s*2 (3s)*2 =30m+225m=255m

second : find vf

s=(vf+vi)/2 xt

vf=2s/t- vi=2(255m)/3s -10 m/s=170 m/s-10m/s=160m/s

Therefore , the final velocity of the car is 160m/s

The choice that most effectively makes up the list of examples is to generate a steady stream of new technologies. Option C is correct.

Given the passage is shown in the attached images.

It most effectively creates the list of examples of new technologies listed in the following sentence:

"Communication satellites, invisible dental appliances and wireless tools."

Options other than C that are A, B and D are incorrect because they say "international cooperation", "national publicity" and "money for the agency", respectively; However, the following sentence lists examples of Technology.

Therefore, the selection that most effectively forms the list of examples that follows in the next sentence of the given passage will generate a steady stream of new technology.

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Answer:

\( \frac{(x - 7)(x + 2)}{x(2 {x}^{2} -13x - 7) } \\ \frac{(x - 7)(x + 2)}{x(x - 7)(2x + 1)} \\ \frac{(x + 2)}{x(2x + 1)} \)

Answer:

$ 80.22

Step-by-step explanation

Assumed 20% tip is on the discounted meal.The cost of the meal is $78.65

The cost of the meal after discount (15%)is 78.65(1−0.15)≈$ 66.85

Tip (20%) is : 66.85⋅0.2$13.37

Total cost of the meal is

66.85+13.37≈$80.22 [Ans]

Answer:

x>-⅘ OR x<-⅘ (Can I have brainliest ;-;)

Step-by-step explanation:

1) Find x-int:

0=10x+8

-8=10x (÷10)

-⅘=x

x(-⅘;0)

2) Domain:

3) Choose 1 of those, since i cant see the graph i cant say which domain would fit the graph

The median of 3 algorithm does not work in linear time when computing the median of 5. It requires additional comparisons and rearrangements, resulting in a higher time complexity than linear.  The median of 7 algorithm works in linear time when computing the median of 5. It allows for efficient selection of the median by utilizing a larger set of elements, ensuring linear time complexity.

To illustrate this, let's consider the scenario of finding the median of 5 using the median of 3 approach. We start by selecting three elements and finding their median, let's say it's element A. Then we compare element A with the remaining two elements. If A is greater than both of them, it becomes the median. Otherwise, we need to consider another pair of elements and repeat the process. This additional step introduces more comparisons and operations, making the algorithm more complex than a linear time algorithm. When using the median of 7 to compute the median of 5, it works in linear time. The median of 7 algorithm selects the median element from a set of seven elements, which can be done in linear time. By applying this algorithm to find the median of 5, we select a subset of five elements and determine their median using the median of 7 algorithm. This approach ensures that we find the median of 5 in a linear time complexity.

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Answer: 19

Step-by-step explanation:

The output of the following code fragment

int x=0;

while( x < 5)

cout << x << endl;

x ++;

cout << x << endl; will be  0, 1, 2, 3, 4, 5.

The code initializes the variable x to 0, and then enters a while loop that will execute as long as x is less than 5. During each iteration of the loop, the value of x is output to the console using the cout statement, followed by a new line character.

After the cout statement, x is incremented by 1 using the x++ statement. This process is repeated until x is equal to 5, at which point the loop terminates. Finally, the value of x is output to the console using the cout statement, followed by a new line character, giving the output of 5.

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Answer:

Use Pythagorean.

The triangles have sides 2, 5 and c.

Answer:

Answer vary:

(a)

*Laila is not wearing tennis shoes.

*It is not the case that Laila is wearing tennis shoes.

(b)

*Jassim is in Germany

Step-by-step explanation:

honestly in my opinion that’s my answer. to be honest either could be wrong but I’m fairly confident in part a but b I’m sorta confident.

(a) what you need to do is focus on the word negations and then you’ll see easily what the answers are. and that’s how I got the answers I got.

meaning of negations : the contradiction or denial of something

(b) so on part b your looking for the conclusion of the sentence and as the sentence explains “If Jassim’s spouse is happy, then Jassim is in Germany.” and for me I came to the conclusion of that answer.

Answer:

Answer:

D

Step-by-step explanation:

What we have to do is to find the arc tan

x/2 = arc tan (-1)

tan is negative on the 4th and second quadrant

arc tan (-1) = 135 or 315

pi is 180 degrees

so we have;

135 is 3 pi/4

multiplied by the 2

= 6 pi/4 which is 3 pi/2

315 is 7 pi/4 which is same as 7 pi/2 when we multiply by 2

Answer:

the answer is d

Among the provided statements, only the statement "Abnormalities in the reflexes can indicate brain damage" is true of newborn reflexes:

Newborn reflexes are automatic, involuntary movements or actions that are exhibited by infants in response to certain stimuli. These reflexes are typically present from birth and serve as important indicators of neurological development and overall health.

Abnormalities or deviations from the expected patterns of newborn reflexes can suggest underlying neurological issues or brain damage.

For example, the absence, asymmetry, or persistence of certain reflexes beyond the expected timeframe can be signs of potential neurological problems that require further evaluation and medical attention.

However, the other statements provided in the options are not accurate:

- Reflexes do not appear until the third week of life: This statement is false. Newborn reflexes are present from birth or shortly after birth, and they can be observed in the early days of a baby's life.

- Newborns have control over their reflexes: This statement is false. Newborn reflexes are instinctual and involuntary responses that occur without conscious control from the infant. As the baby grows and develops, they gain more control over their movements and their reflexes become integrated into voluntary actions.

- These reflexes become involuntary over time: This statement is false. Newborn reflexes are already involuntary from the start. They are not intentionally controlled by the baby and are automatic responses triggered by specific stimuli.

It's important to note that the presence or absence of specific newborn reflexes and their developmental patterns can vary among individuals, but deviations from the norm may indicate potential health concerns and should be addressed by medical professionals.

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By using the unitary method and dividing the time into equal intervals, the number of bacteria doubled every 3 hours, the final total of 32,000 bacteria after 14 hours.

Unitary method involves dividing the time interval into equal parts, and calculating the growth for each unit of time before adding them all up to get the total growth.

To start, let's divide the 14 hours into 3 hour intervals. We have

=> 14 hours / 3 hours = 4 intervals.

Next, we need to calculate the growth in each 3 hour interval. Since the number of bacteria doubles every 3 hours, we can find the growth by multiplying the initial number of bacteria by 2.

Starting with the first interval, we have 2000 bacteria * 2 = 4000 bacteria.

We can now repeat this calculation for each interval, multiplying the previous total by 2 each time.

For the second interval, we have 4000 bacteria * 2 = 8000 bacteria.

For the third interval, we have 8000 bacteria * 2 = 16,000 bacteria.

Finally, for the fourth interval, we have 16,000 bacteria * 2 = 32,000 bacteria.

So, at the end of 14 hours, there will be 32,000 bacteria in the culture.

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The probability that less than a third of the entry forms will include an order is 0.3760.

To solve this problem, we need to use the binomial distribution, which is a probability distribution that describes the number of successes in a fixed number of independent trials. In this case, we want to find the probability that less than a third of the 15 entries will include an order, given that the probability of receiving an order with an entry form is 0.5.

Let X be the random variable that represents the number of entries with an order out of the 15 total entries. Then X follows a binomial distribution with parameters n=15 and p=0.5. The probability of less than a third of the entries having an order is equivalent to the probability of X being less than or equal to 5, since 5 is one third of 15.

Using a binomial probability table or calculator, we can find that the probability of X being less than or equal to 5 is 0.3760, rounded to four decimal places.

In summary, we used the binomial distribution to model the number of entries with an order, and found the probability that less than a third of the entries will include an order. We obtained a probability of 0.3760, which represents the likelihood of observing 5 or fewer entries with an order out of the 15 total entries.

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Answer:  The box measurements are as follows: Box A: height = 5 inches, length = 18 inches, width = 10. Box B: height = 8 inches, length = 10 inches, ..

Step-by-step explanation:

So the convincing evidence that the radio station plays less than

\(50\ min\ of\ music\ per\ hour\). Here we have to see graph and chart.

Parameter of Interest, \(\mu = the\ true\ average\ number \ minutes\ of\ music \ played\ every \ hour.\)

Null Hypothesis,  \(H_{o} : \mu = 50\)

Alternative Hypothesis, \(H_{a} : \mu < 50\)

\(Conditions\ of\ test :\)

\(Random :\) A random sample of \(hours\) was selected.

\(Independent:\) There are more than \(10(12) = 120\ hours\) of music played during the week.

\(Normal:\) We do not know if the population distribution of the music  \(times\) is approximately Normal and we don’t have a large (big) sample size, so we will graph the data and look for any departures from Normality.

Level of Significance,  \(\alpha = 0.05\ Significance\ level\)

\(n = 12, df = 11, \bar x = 47.9, S_{x} = 2.81\)

1- var Stats:

\(\bar x= 47.9166\) , \(\Sigma\ x = 575\), \(\Sigma\ x^{2} = 27639\), \(Sx = 2.81096\), \(\sigma x = 2.69129\)

\(t = \frac{\bar x- \mu_{o}}{ \frac{S_{x} }{\sqrt{n} } }\)

\(t = \frac{47.9- 50}{ \frac{2.81 }{\sqrt{12} } }\)

\(= - 2.59\)

T test :

\(\mu < 50, t = -2.5674, p=.013, \bar x = 47.9166, S_{x} = 2.81, n = 12\)

P-value (Use correct probability notation.) \(P-value = P(t < -2.59) = 0.0126\)

Since the \(P-value(.013)\) is less than \(\alpha =.05\), we reject the null hypothesis.

There is convincing evidence(proof) that the radio station plays less than \(50\ min\ of\ music\ per\ hour\).

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Answer:

a) 2 ; b) 0; c) -2 ; d) -1

Step-by-step explanation:

a) f(-4)=2 ;

b) f(0)=0;

c) f(2)= -2 ;

d) f(5)= -1

Answer:

water based

Step-by-step explanation:

trust

(A) x2 + (y – 3)² = 36, is the equation that represents circles with a diameter of 12 units and a center on the y-axis.

So, the standard form for calculating the equation of a circle is as follows:

(x-a)² + (y-b)² = b = r²

Where;

Information:

If the center is on the y-axis, it will be at (0, 3).

By substituting into the formula, we get (x-0)² + (y-3)² = 6² is equivalent to

Therefore, the equation that represents circles with a diameter of 12 units and a center on the y-axis is (A) (A) x2 + (y – 3)² = 36.

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The correct question is given below:
Which equations represent circles that have a diameter of 12 units and a center that lies on the y-axis? Select two options.

a. x2 + (y – 3)2 = 36

b. x2 + (y – 5)2 = 6

c. (x – 4)² + y² = 36

d. (x + 6)² + y² = 144

e. x2 + (y + 8)2 = 36

Probability is a measure of the likelihood or chance of an event occurring.

a. To find the percentage of years where Ithaca gets more than 40" of rain, we need to calculate the z-score for this value and then use a standard normal table to find the percentage. The z-score is:

z = (40 - 35.4) / 4.2 = 1.33

From a standard normal table, we find that the percentage of values above z = 1.33 is approximately 9.87%. Therefore, during about 9.87% of years, Ithaca gets more than 40" of rain.

b. To find the value of rainfall corresponding to the driest 20% of years, we need to calculate the z-score for the 20th percentile and then convert it back to rainfall units. The z-score is:

z = invNorm(0.20) = -0.84

where invNorm is the inverse normal function. Therefore,

-0.84 = (x - 35.4) / 4.2

Solving for x, we get:

x = 32.2"

So less than 32.2" of rain falls in the driest 20% of all years.

c. Since the sample size n = 4 is small and the population standard deviation is unknown, we need to use the t-distribution to describe the sampling distribution model of the sample mean. However, since the sample size is small, we also need to assume that the population follows a normal distribution.

Under these assumptions, the sampling distribution of the sample mean is approximately normal with a mean of μ = 35.4" and a standard error of σ/√n = 4.2/√4 = 2.1". Therefore, the sampling distribution of the sample mean is:

t(3, 35.4, 2.1)

where t denotes the t-distribution, 3 is the degrees of freedom (n - 1), 35.4 is the mean, and 2.1 is the standard error.

d. To find the probability that the 4-year average is less than 30", we need to calculate the z-score for this value and then use the t-distribution with 3 degrees of freedom to find the probability. The z-score is:

z = (30 - 35.4) / (4.2 / √4) = -2.57

Using a t-table or calculator with 3 degrees of freedom, we find that the probability of a t-value less than -2.57 is approximately 0.041. Therefore, the probability that those 4 years average less than 30" of rain is approximately 0.041 or 4.1%.

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