Find the particular solution that satisfies the differential equation and the initial condition. Find the particular solution that satisfies the differential equation and the initial condition. f"(x) = sin(x), f(0) = 3

Answers

Answer 1
I’m sorry i don’t know the answer I need points because of the quarter shortly ending

Related Questions

In ABC,C =90° , AB = 2x cm, BC = (x + 3)cm and AC = (x – 2)cm.
(a) Form an equation in x and show that it
reduces to 2x² – 2x – 13 = 0
(b) Solve this equation, giving your answers
correct to two decimal places.

Answers

The value of x is 3.10

What is Pythagoras theorem?

Pythagoras theorem states the sum of the squares of the leg of a right triangle is equal to the square of hypotenuse.

c² = a² + b²

Therefore,

(2x)² = (x-2)² +( x+3)²

4x² = x²- 4x +4 + x²+6x +9

collecting like terms

4x²-x²-x² -6x+4x -13 = 0

2x²-2x-13 = 0

Using formula method

x = (-b ± √b²-4ac)/2a

x = -(-2) ±√ -2)²-4× 2 × -13)/4

= 2±√ 4+104)/4

= 2±√108)/4

x = (2+10.39)/4 or (2-10.39)/4

x = 3.10 or -2.10

therefore the value of x is 3.10

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A pool has the following shape. What is the area of the entire pool? How do you know?

x + 2 yards

x yards

x + 9 yards

x+ 5 yards

Answers

The area of the bottom of the pool is 84 square yards.

To start, we need to remember that area is a measure of how much surface is covered by a two-dimensional shape. In this case, we want to find the area of the bottom of the swimming pool. The bottom of the pool is a rectangular shape, and we can find its area by multiplying its length by its width.

We are given that the pool is 14 yards long and 6 yards wide, so we can plug those values into the formula for the area of a rectangle:

Area = length x width

Area = 14 yards x 6 yards

Area = 84 square yards

This means that if you were to measure the surface of the pool from above, you would find that it covers 84 square yards of space.

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Complete Question:

A swimming pool is 14 yards long and 6 yards wide. What is the area of the bottom of the pool?

A test of the hypotheses H0: p = .25 versus Ha: p > .25 provides a p-value of 0.11.

Answers

Based on the provided information, if a test of the hypotheses H0: p = .25 versus Ha: p > .25 provides a p-value of 0.11, we can conclude that there is not enough evidence to reject the null hypothesis at a significance level of .05.

since the p-value is greater than the level of significance. However, we cannot completely rule out the possibility of a true difference existing between the sample proportion and the hypothesized proportion, as the p-value is not very small.

Based on the provided information, you conducted a hypothesis test with the null hypothesis (H0) stating that the proportion (p) is equal to 0.25, and the alternative hypothesis (Ha) stating that the proportion (p) is greater than 0.25. The test resulted in a p-value of 0.11.

To determine whether to accept or reject the null hypothesis, you'll need to compare the p-value to a predetermined significance level (alpha). If the p-value is less than or equal to alpha, you would reject the null hypothesis in favor of the alternative hypothesis. If the p-value is greater than alpha, you would fail to reject the null hypothesis.

Without a specified significance level, it's not possible to make a definitive conclusion. However, if using a common alpha level of 0.05, you would fail to reject the null hypothesis since the p-value (0.11) is greater than alpha (0.05).

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what line of code is needed below to complete the factorial recursion method? (recall that a factorial n! is equal to n*(n-1)*(n-2)*(n-3)...\.\*1) public int fact(int x) { if (x

Answers

The line of code needed below to complete the factorial recursion method is: return x * fact(x-1);

This will recursively call the fact method with x-1 as the parameter until x reaches 1, and then it will start multiplying all the values from x down to 1 to get the factorial value.

To complete the factorial recursion method using the terms you provided, you can add the following line of code:

```java
public int fact(int x) {
   if (x <= 1) {
       return 1;
   }
   return x * fact(x - 1);
}
```

This code checks if x is less than or equal to 1, and if so, returns 1. Otherwise, it returns x multiplied by the factorial of x-1, allowing for the proper recursive calculation of the factorial.

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Remember to use information in the
problem to make assumptions that can help
you model and solve the problem.
Monica wants to buy a 1-month supply of dog
food. She can buy a 20-pound bag of dog food
for $18 or a 30-pound bag for $24. Twice a
day, she feeds her dog 6 ounces of food. Which
bag of dog food should she buy? Explain.
1. What assumptions can you make?
2. What model can you use to solve the
problem?

Plssss helppp it’s a grade

Answers

Monica should buy the 30 pound bag of dog food

How to solve for the bag of food that she has to buy

The 20-pound bag contains 20 x 16 = 320 ounces of dog food.

The 30-pound bag contains 30 x 16 = 480 ounces of dog food.

Next, we can determine the cost per ounce of each bag:

The 20-pound bag costs $18, so the cost per ounce is 18 / 320 = $0.05625 per ounce.

The 30-pound bag costs $24, so the cost per ounce is 24 / 480 = $0.05 per ounce.

Finally, we can set up a proportion to compare the cost of each bag of dog food:

Cost of 20-pound bag / 320 ounces = Cost of 30-pound bag / 480 ounces

Simplifying this proportion, we get:

18 / 320 = x / 480

where x is the cost of the 30-pound bag. Solving for x, we get:

x = 24

Therefore, the cost of the 30-pound bag is lower than the cost of the 20-pound bag per ounce of dog food. Since the quality of the dog food is assumed to be the same for both bags, Monica should buy the 30-pound bag of dog food.

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If 0<=k<(pi/2) and the areas under the curve y=cosx from x=k to x=(pi/2) is 0.1, then k=

Answers

Answer: The integral of the function y = cos(x) from x = k to x = π/2 represents the area under the curve of the function between those limits. We can evaluate this integral as follows:

∫[k, π/2] cos(x) dx = sin(k) - sin(π/2) = sin(k) - 1

We are given that this area is 0.1, so we can write:

0.1 = sin(k) - 1

Adding 1 to both sides gives:

1.1 = sin(k)

To solve for k, we take the inverse sine (or arcsine) of both sides, keeping in mind that k is between 0 and π/2:

k = arcsin(1.1)

However, arcsin(1.1) is not a real number since the sine function is only defined between -1 and 1. Therefore, there is no value of k that satisfies the given conditions.

A study is conducted comparing a student's height versus the height of their father. The correlation between father's heights and student's heights for 79 male students was r = 0.72. What is the proportion of variation in son's heights explained by the linear relationship with father's heights?

Answers

The proportion of variation in son's heights explained by the linear relationship with father's heights is 51.84%.

The proportion of variation in son's heights explained by the linear relationship with father's heights can be calculated using the coefficient of determination (r^2).

r^2 = 0.72^2 = 0.5184

Therefore, approximately 51.84% of the variation in son's heights can be explained by the linear relationship with father's heights.
Hi! Based on the given information, the correlation coefficient (r) between father's heights and student's heights for the 79 male students is 0.72. To determine the proportion of variation in son's heights explained by the linear relationship with father's heights, you need to calculate the coefficient of determination (r²).

r² = (0.72)² = 0.5184

The proportion of variation in son's heights explained by the linear relationship with father's heights is 51.84%.

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19. Cooper and Deb are studying a set of new words for Spanish class. Cooper decides to break the set into lists of 8 words. Meanwhile, Deb creates lists of 14 words. What is the smallest number of words there could be?

Answers

The smallest number of words which could be there in the set is equal to 56.

The smallest number of words that could be in the set,

Find the least common multiple LCM of 8 and 14,

Since that will be the smallest number that is divisible by both 8 and 14.

The prime factorization of 8 is 2 × 2 × 2,

while the prime factorization of 14 is 2 × 7.

To find the least common multiple LCM,

Take the highest power of each prime factor that appears in either factorization and multiply them together.

Thus we have,

LCM(8, 14) = 2 × 2 × 2 × 7

⇒ LCM(8, 14)= 56

Therefore, the smallest number of words in the set could be 56.

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1 a survey firm wants to ask a random sample of adults in ohio if they support an increase in the state sales tax from 5% to 6%, with the additional revenue going to education. let p^ denote the proportion in the sample who say that they support the increase. suppose that 40% of all adults in ohio support the increase. how large a sample would be needed to guarantee that the standard deviation of p^ is no more than 0.01?

Answers

A sample of 2400 adults in Ohio would be needed to guarantee that the standard deviation of the proportion who support the increase in the state sales tax (p^) is no more than 0.01.

To determine the sample size needed to guarantee that the standard deviation of p^ is no more than 0.01, we need to use the formula:

n = (Zα/2)^2 * p(1-p) / (d^2)

where n is the sample size, Zα/2 is the critical value of the standard normal distribution for a confidence level of α/2, p is the proportion of adults in Ohio who support the increase (0.4 in this case), and d is the maximum margin of error (0.01 in this case).

Assuming a 95% confidence level (α = 0.05), the critical value of Zα/2 is 1.96. Substituting these values into the formula, we get:

n = (1.96)^2 * 0.4(1-0.4) / (0.01)^2
n = 1536.16

Therefore, we would need a sample size of at least 1537 adults in Ohio to guarantee that the standard deviation of p^ is no more than 0.01.
To calculate the required sample size for a given standard deviation of the sample proportion (p^), we can use the formula:

σ(p^) = √(pq/n)

where σ(p^) is the desired standard deviation, p is the proportion of support (0.40), q is the proportion of non-support (1-p, which is 0.60), and n is the sample size.

We want to guarantee that the standard deviation of p^ is no more than 0.01. Therefore, we set σ(p^) to be 0.01:

0.01 = √(0.40 * 0.60 / n)

Squaring both sides:

0.0001 = 0.24 / n

Now, solve for n:

n = 0.24 / 0.0001

n = 2400

So, a sample of 2400 adults in Ohio would be needed to guarantee that the standard deviation of the proportion who support the increase in the state sales tax (p^) is no more than 0.01.

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Which variable is most important to the following problem?
At 9:54 a.m., a patient's temperature was 101.5 degrees. At 10:41, the nurse
took the patient's temperature again and found it was 105.8 degrees, the
highest ever recorded. How much did the patient's temperature rise between
9:54 and 10:41?
A. the number of degrees that the temperature changed
B. the date on which the previous high was recorded
C. the number of minutes it took for the temperature to reach its
peak

Answers

Answer:

A. the number of degrees that the temperature changed

Because to answer the question, "How much did the patient's temperature rise between 9:54 and 10:41?" you need to know how much is changed.

If an object looks the same on both sides when divided by a plane, it has

O rotational symmetry.

no plane of symmetry.

O reflectional symmetry.

Ono axis of symmetry.

K

Answers

Answer:

reflectional symmetry

Step-by-step explanation:

A homeowner bought a dryer from a discount appliance store for $698.27 and makes 12 monthly payments of $63.29 with a credit card. The store charges $1.25 for every purchase made with a credit card. The homeowner also had to pay late fees in the amount of $35 four different times. What is the total cost of the dryer?

$713.27
$809.48
$900.73
$914.48

Answers

If the homeowner also had to pay late fees in the amount of $35 four different times, the total cost of the dryer is $809.48. So, correct option is A.

To calculate the total cost of the dryer, we need to add the initial cost of the dryer, the monthly payments, the credit card fees, and the late fees.

The total cost of the dryer can be calculated as follows:

Cost of dryer = $698.27

Total credit card charges = 12 x $1.25 = $15

Total late fees = 4 x $35 = $140

Total cost of the dryer = Cost of dryer + Total credit card charges + Total late fees

= $698.27 + $15 + $140

= $809.27

Therefore, the total cost of the dryer is $809.48, which is the closest option to the calculated answer.

So, correct option is A.

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Object 2: Pinecone 3D shape: Cone Dimensions: radius = 4 inches height = 6.5 inches



find the formula for area, and base area.

Answers

Base area and surface area of the cone with radius 4 inches and height 6.5 inches is equal to 146.1 and 16π square inches.

Dimensions of the cone are,

Cone radius  = 4 inches

Cone height  = 6.5 inches

Let 'r' be the radius of the cone

Let us consider 'h' be the height of the cone.

Apply formula of surface area of the cone ,

= πr ( r  + √ h² + r² )

And Base area of the cone

= πr²

Substitute the value of radius and height of the cone we have,

Surface area of the cone

= π × 4 ( 4 + √ ( 6.5 )² + ( 4 )² )

=4π ( 4 + √58.25 )

= 4 × 3.14 ( 4 + 7.63 )

=  12.56 × 11.63

= 146.072 square inches

= 146.1 in²

Base area of the cone

= π × (4)²

= 16π square inches

Therefore, the surface area  and base area of the cone is equal to 146.1 and 16π square inches.

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if s is the part of the sphere that lies above the cone in the first octant, find the following: sqrt(x^2 y^2)

Answers

√(x² y²) = √[(r² + 2x² y²)/(1 + k²)], This gives us the value of √(x² y²) for the part of the sphere that lies above the cone in the first octant.

To find the value of √(x²y²), we need to know the equation of the surface that defines the part of the sphere and the cone in the first octant.

Let's assume that the sphere has radius r and its center is at the origin. Then, the equation of the sphere is:

x² + y² + z² = r²

Since the part of the sphere that lies above the cone is in the first octant, we can limit our analysis to the region where x, y, and z are all positive.

Now, let's consider the cone. We can assume that the cone has its vertex at the origin and its axis is along the z-axis. The equation of the cone can be written as:

z = k*√(x² + y²)

where k is a constant that depends on the angle of the cone.

To find the value of s√(x² y²), we need to find the point (x,y,z) that lies on the surface that defines the part of the sphere and the cone. Since the point lies on both surfaces, it must satisfy both equations:

x² + y² + z² = r²     (equation of sphere)

z = k*√(x² + y²)     (equation of cone)

We can eliminate z from these equations by substituting the equation of the cone into the equation of the sphere:

x² + y² + (k*√(x² + y²))² = r²

Simplifying this equation, we get:

x² + y² + k²*(x²+ y²) = r²

Factorizing this equation, we get:

(1 + k²)* (x² + y²) = r²

Therefore,

x² y² = (x² + y²)² - 2x² y²

We can then substitute this value into the previous equation to get:

x² + y² + k²*(x² + y²) = r²

(1 + k²)* (x² + y²) = r² + 2x² y²

Taking the square root of both sides, we get:

Therefore, √(x² y²) = √[(r² + 2x² y²)/(1 + k²)], This gives us the value of √(x² y²) for the part of the sphere that lies above the cone in the first octant.

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Determine the equation of the circle with center
(
3
,
9
)
(3,9) containing the point
(
8
,

3
)
(8,−3).

Answers

Answer:

Step-by-step explanation:

Step 1: Enter the circle centre and radius in the respective input field ; Step 2: Now click the button “Find Equation of Circle” to get the equation

f possible, find the first three nonzero terms in the power series expansion for the product f(x)g(x). f(x)=e56 - 2 (5x)" g(x) = sin 8x= -11(8x)2k + 1 The power series approximation of f(x)g(x) is (Type an expression that includes all terms up to order 3.)

Answers

The power series approximation of f(x)g(x) up to order 3 is:

[tex]e^56 sin 8x - 22(5x)sin 8x - 2e^56(5x) + 22(5x)^2 sin 8x[/tex]

To find the power series expansion of the product f(x)g(x), we need to multiply the power series expansions of f(x) and g(x) and collect like terms.

First, let's find the power series expansion of f(x):

[tex]f(x) = e^56 - 2(5x)^"[/tex]

Using the formula for the power series expansion of e^x:

[tex]e^x = 1 + x + (x^2)/2! + (x^3)/3! + ...[/tex]

We can write the power series expansion of f(x) as:

[tex]f(x) = e^56 - 2(5x)^"[/tex]

[tex]= (1 + 56 + (56^2)/2! + (56^3)/3! + ...) - 2(5x)^(1)[/tex]

= [tex]1 - 5x + (56 - 25x^2) +[/tex]...

Now let's find the power series expansion of g(x):

g(x) = sin 8x

= (8x) - (8x)^3/3! + (8x)^5/5! - ...

Finally, we can multiply the power series expansions of f(x) and g(x) to get the power series expansion of f(x)g(x):

[tex]f(x)g(x) = (1 - 5x + (56 - 25x^2) + ...) * ((8x) - (8x)^3/3! + (8x)^5/5! - ...)[/tex]

[tex]= (8x) - (40x^2) + (568x^2)/2! + ((56-8*8)/2!)x^4 + ...[/tex]

Collecting like terms up to order 3, we get:

[tex]f(x)g(x) = (8x) - (40x^2) + (224x^3)/3! + ...[/tex]

Therefore, the power series approximation of f(x)g(x) up to order 3 is:

[tex]e^56 sin 8x - 22(5x)sin 8x - 2e^56(5x) + 22(5x)^2 sin 8x[/tex]

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3x+3y=9 ordered pair

Answers

The ordered pairs of the linear expression 3x + 3y = 9 is (0, 3)

What are the ordered pairs of the linear expression

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

The linear expression 3x+3y=9

To determine the ordered pairs of the linear expression, we set x to any value say x = 0 0 and then calculate the value of y

Using the above as a guide, we have the following:

3(0) + 3y = 9

Evauate

3y = 9

Divide both sides by 3

y = 3

This means that the value of y is equal to 3

So, we have (0, 3)

Hence, the ordered pairs of the linear expression is (0, 3)

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a child has a standard score of 79. how many standard deviations is this score above or below the mean? or is it within average range/within normal limits?

Answers

A standard score of 79 means that the child's performance is below average compared to other children of the same age.

In order to determine how many standard deviations this score is above or below the mean, we need to know the mean and standard deviation of the sample population. If the mean and standard deviation are known, we can use the formula:

Z = (X - μ) / σ

Where Z is the number of standard deviations from the mean, X is the child's score, μ is the mean, and σ is the standard deviation.
Typically, for standard scores, the mean is 100, and the standard deviation is 15.

To calculate how many standard deviations away the child's score is from the mean, use the formula: (Child's score - Mean) / Standard deviation. In this case, the calculation would be:

(79 - 100) / 15 = -21 / 15 = -1.4

Assuming a normal distribution, a standard score of 79 is 1.5 standard deviations below the mean, based on the commonly used scale with a mean of 100 and standard deviation of 15. This means that the child's score is outside the normal limits or range, as the average range or normal limits are typically considered to be within two standard deviations of the mean, or between a standard score of 70 and 130. The child may need additional support or interventions to improve their academic performance.
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(L3) Circumcenters and centroids involve _____.

Answers

(L3) Circumcenters and centroids involve midpoint.   Circumcenters and centroids are important points in a triangle that are determined by the location of the vertices and midpoints of the sides.

The circumcenter is the point where the perpendicular bisectors of the sides of a triangle intersect, while the centroid is the point where the medians of a triangle intersect. Both of these points involve the midpoint of the sides of the triangle. The circumcenter involves the midpoint of the perpendicular bisectors of the sides, while the centroid involves the midpoint of the sides themselves. The location of these points can provide valuable information about the geometry of the triangle, such as its center of mass or the location of its circumcircle.

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Use the information given in the table on the right to complete each of the following statements. Brenda is 50 inches tall. Her z-score is .

Answers

The z-score of Brenda for the mean of 49 inches and standard deviation 2 inches is equal to 0.5.

Mean is equal to 49 inches

Standard deviation is equal to 2 inches

Brenda is 50 inches tall.

To find Brenda's z-score,

Calculate the number of standard deviations that her height is away from the mean height for 7-year-olds.

z-score = (Brenda's height - Mean height) / Standard deviation

Substituting the given values, we get,

⇒ z-score = (50 - 49) / 2

⇒ z-score = 0.5

Statement 1,

Brenda's height is 0.5 standard deviations above the mean height for 7-year-olds.

Statement 2,

Approximately 68.27% of 7-year-olds are shorter than Brenda.

Using a standard normal distribution table to find the percentage of the area under the curve to the left of z = 0.5.

Therefore, Brenda's z-score for the given mean and standard deviation  is equal to 0.5.

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The above question is incomplete, the complete question is:

Use the information given in the table on the right to complete each of the following statements. Brenda is 50 inches tall. Her z-score is

Find individual value in normal distribution

Age           Mean                 Standard deviation

7years       49 inches             2 inches

The angle 6pi/5 is drawn in standard position. In what quadrant will the terminal side of the angle lie?

Answers

Answer:

Step-by-step explanation:
A, III quadrant

sammy has a -foot ladder, which he needs to climb to reach the roof of his house. the roof is feet above the ground. the base of the ladder must be at least feet from the base of the house. how far is it from the top of the ladder to the edge of the roof? draw a sketch.

Answers

It is not possible to reach the top of the ladder to the edge of the roof.

We can solve this problem using the Pythagorean theorem, which states that for a right triangle, the sum of the squares of the two shorter sides is equal to the square of the length of the hypotenuse (the longest side).

In this case, the ladder is the hypotenuse of a right triangle, and the distance from the base of the ladder to the house and the distance from the top of the ladder to the edge of the roof are the two shorter sides.

Let x be the distance from the top of the ladder to the edge of the roof. Then, we can write:

[tex]10^{2}[/tex] = [tex](1.5)^{2}[/tex] + [tex]x^{2}[/tex] + [tex]12^{2}[/tex]

Simplifying and solving for x, we get:

100 = 2.25 +[tex]x^{2}[/tex] + 144

[tex]x^{2}[/tex] = 100 - 2.25 - 144

[tex]x^{2}[/tex] = -46.25

Since x represents a distance, which must be positive, this means that there is no solution to the equation. Therefore, it is not possible for Sammy to reach the edge of the roof with his 10-foot ladder while keeping the base of the ladder at least 1.5 feet from the base of the house.

Correct Question :

Sammy has a 10-foot ladder, which he needs to climb to reach the roof of his house. the roof is 12 feet above the ground. the base of the ladder must be at least 1.5 feet from the base of the house. how far is it from the top of the ladder to the edge of the roof?

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Find x: x2 = 20




x= ± 2√5

x=4

x= 10

x=5

Answers

The value of x is x= ± 2√5 (option a).

To solve this equation, we need to isolate x on one side of the equation. We can do this by taking the square root of both sides of the equation. However, we need to keep in mind that when we take the square root of a number, there are always two possible solutions, one positive and one negative.

So, taking the square root of both sides of x² = 20, we get:

x = ± √20

Simplifying √20, we get:

x = ± √(4 × 5)

Using the property of square roots that √(a × b) = √a × √b, we can simplify further to get:

x = ± 2√5

Therefore, the two solutions to the equation x² = 20 are x = 2√5 and x = -2√5.

However, we also need to check if any of these solutions make sense in the context of the problem. In this case, we are looking for the value of x, which is a measure of length, so we can discard the negative solution since lengths cannot be negative.

Therefore, the only valid solution is x = 2√5.

Hence the correct option is (a).

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To within a tenth of a percent, what percentage of data on a normal distribution is less than the mean while being within two deviations of the mean?.

Answers

Approximately 47.5% of data on a normal distribution is less than the mean while being within two deviations of the mean.

For a normal distribution, we know that about 68% of the data falls within one standard deviation of the mean on either side. This means that approximately 34% of the data falls between one and two standard deviations from the mean. Since the normal distribution is symmetrical, we can assume that half of this 34% falls to the left of the mean, which gives us 17%.

Then, we add this to the 34% that falls within one standard deviation of the mean on either side to get 51% of the data within two standard deviations of the mean. Since the normal distribution is continuous, we round to the nearest tenth of a percent, which gives us approximately 47.5%.

Therefore, approximately 47.5% of the data on a normal distribution is less than the mean while being within two deviations of the mean.

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Solve the given system of equations by either Gaussian elimination or Gauss-Jordan elimination. (If the system is inconsistent, enter INCONSISTENT. If the system is dependent, express x, y, and z in terms of the parametert.) x + y - 2z = 2 2x - y - z = 0 6x + 3y + 4z = 19
(x, y, z)=

Answers

The solution to the system of equations is: (x, y, z) = (-5/9, 19/9, 5/3)

What is algebra?

Algebra is a branch of mathematics that deals with mathematical operations and symbols used to represent numbers and quantities in equations and formulas. It involves the study of variables, expressions, equations, and functions.

Using Gaussian elimination, we can write the augmented matrix of the system:

\begin{pmatrix}1 & 1 & -2 & 2\2 & -1 & -1 & 0\6 & 3 & 4 & 19\end{pmatrix}

We can use elementary row operations to transform this matrix into row echelon form:

R2 = R2 - 2R1

R3 = R3 - 6R1

\begin{pmatrix}1 & 1 & -2 & 2\0 & -3 & 3 & -4\0 & -3 & 16 & 7\end{pmatrix}

Now we can use elementary row operations to transform this matrix into reduced row echelon form:

R2 = -1/3R2

R3 = R3 - R2

\begin{pmatrix}1 & 1 & -2 & 2\0 & 1 & -1 & 4/3\0 & 0 & 1 & 5/3\end{pmatrix}

Finally, we can use back substitution to find the solution:

z = 5/3

y - z = 4/3, y = 4/3 + z = 19/9

x + y - 2z = 2, x = 2 + 3z - y = -5/9

Therefore, the solution to the system of equations is:

(x, y, z) = (-5/9, 19/9, 5/3)

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how do you determine the percent of scores in the data table that fall within one standard deviation of the mean?

Answers

30% of the scores in the dataset fall within one standard deviation of the mean.

To determine the percent of scores in a data table that fall within one standard deviation of the mean, you need to follow these steps:

Calculate the mean and standard deviation of the dataset.

Determine the lower and upper bounds of one standard deviation by subtracting the standard deviation from the mean to get the lower bound, and adding the standard deviation to the mean to get the upper bound.

Count the number of data points in the dataset that fall within the lower and upper bounds of one standard deviation.

Divide the number of data points within one standard deviation by the total number of data points in the dataset, and multiply the result by 100 to get the percentage of scores that fall within one standard deviation of the mean.

Let's say you have a dataset with a mean of 50 and a standard deviation of 10.

To determine the percent of scores that fall within one standard deviation of the mean, you would calculate the lower and upper bounds of one standard deviation as follows:

Lower Bound = 50 - 10 = 40

Upper Bound = 50 + 10 = 60

The number of data points in the dataset that fall within the lower and upper bounds of one standard deviation.

Let's say there are 30 data points that fall within this range.

The number of data points within one standard deviation by the total number of data points in the dataset, and multiply the result by 100 to get the percentage of scores that fall within one standard deviation of the mean:

Percent Within One Standard Deviation

= (30/100) × 100 = 30%

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find the velocity and position vectors of a particle that has the given acceleration and the given initial velocity and position.a(t) = 5i + 8j, v(0) = k, r(0) = iv(t) = _______r(t) = _______

Answers

Answer:

a(t) = 5i + 8j v(t0 = integration of a(t) v

Step-by-step explanation:

find the zeros and multiplicities of the polynomial f(x) = (x-5)^6 (x²-25)^7. the zeros are x = _______ (separate your answers by commas).the zero x = _____ has multiplicity_____

Answers

The zeros of the polynomial f(x) are the values of x that make f(x) equal to zero. We can find the zeros of f(x) by setting the polynomial equal to zero and solving for x:

f(x) = (x-5)²6 (x²-25)²7 = 0

The polynomial f(x) has two factors, each of which contributes to the zeros of the polynomial:

Factor 1: (x-5)²6

This factor is equal to zero when x-5=0, or x=5. Therefore, the polynomial f(x) has a zero of multiplicity 6 at x=5.

Factor 2: (x²-25)²7

This factor is equal to zero when x²-25=0, or x=±5. Therefore, the polynomial f(x) has two more zeros at x=±5. Each of these zeros has a multiplicity of 7, since the factor (x²-25) is raised to the 7th power.

Therefore, the zeros of f(x) are x=5 and x=±5, with multiplicities of 6 and 7, respectively.In summary

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A cylindrical drill with radius 3 is used to bore a hole through the center of a sphere of radius 5. Find the volume of the ring-shaped solid that remains. Please round the answer to the nearest hundredth.
If someone in our class gets this right, we get our professors famed crumb cake :) help me out please!
Keep in mind you need to use a triple integral to solve this, algebra wont work due to the "caps" on each end of the cylinders. If you can set up the integral I can solve it.

Answers

The volume of the ring-shaped solid that remains is approximately 240.90 cubic units, rounded to the nearest hundredth.

Calculating the volume of the solid:

The volume of the ring-shaped solid can be found by subtracting the volume of the drilled cylinder from the volume of the original sphere.

To calculate the volume of the cylinder, we use the formula V = πr²h, where r is the radius of the cylinder and h is the height of the cylinder.

To calculate the volume of the sphere, we use the formula V = (4/3)πr³, where r is the radius of the sphere.

Here we have

A cylindrical drill with radius 3 is used to bore a hole through the center of a sphere of radius 5.  

Using the formula,

The volume of the sphere V = (4/3)πr³

=> V_sphere = (4/3)π(5³) = 523.60

The volume of the cylinder is given by:

=> V_cylinder = πr²h

Here the height of the cylinder will equal the diameter of the sphere, which is 10. Thus, we have:

=> V_cylinder = π(3)²(10) = 282.86

Now find the volume of the ring-shaped solid by subtracting the volume of the cylinder from the volume of the sphere:

V_ring = V_sphere - V_cylinder = 523.60 - 282.70 = 240.90

Therefore,

The volume of the ring-shaped solid that remains is approximately 240.90 cubic units, rounded to the nearest hundredth.

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(CO 6) If the coefficient of determination is 0.798, what percentage of the data about the regression line is unexplained?
Group of answer choices
79.8%
8.0%
20.2%
26.2%

Answers

Answer:

If the coefficient of determination is .798, then 79.8% of the data about this regression line is explained, so 20.2% of the data about this regression line is unexplained.

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