what are the mean and standard deviation of the sampling distribution of the sample mean for samples of size 4 ?

The given differential equation with variable separation will be cosy = -1/2 sin2x + C.

A differential equation in mathematics is an equation that connects the derivatives of one or more unknown functions.

Applications often involve functions that reflect physical quantities, derivatives that depict the rates at which those values change, and a differential equation that establishes a connection between the three.

Due to the prevalence of these relationships, differential equations are widely used in many fields, including engineering, physics, economics, and biology.

So, we have the differential equation:

csc(y) dx + sec2(x) dy = 0

We, are aware that:
csc(y) = 1/ siny

sec(x) = 1/ cosx

We can also write it:

dx/siny = dy/cos2x

Cross multiplication with variable separation:

siny dy = cos2x dx

Differentiate:
cosy = -1/2 sin2x + C

As a result, the given differential equation with variable separation will be

cosy = -1/2 sin2x + C.

Therefore, the given differential equation with variable separation will be cosy = -1/2 sin2x + C.

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Answer: D

Step-by-step explanation:

For a graph to be shifted to the left, the notation inside the X function must be positive 4. For a graph to be shifted upward, the addition of 6 must be outside the slope, indicating that it is not being done in the x-direction, but in the y-direction.

Check the picture below.

(14,2) is the point  lies on the slope-intercept form, line .

What does the slope intercept form mean?

The formula for a straight line, written as y = mx + b, where m denotes the line's slope and b its y-intercept. We can see that the y-intercept of the line in our equation, y = 7 x + 4, is 4.

                   In the slope-intercept form, the equation for the line is expressed as follows: y = mx + b, where m denotes the slope and b the y-intercept. We can observe that the line's slope is 3 from our equation, y = 3 x + 5.

All lines passing thru the origin should have a slope of y = mx + c

In this case, since the slope is 1/7 ,  the line will be  y = 1/7x

Thus, it could observe which is the only point  that satisfies this equation of the line out of all the points.

For choice "E" when x= 7  and y = 14  m = 1/7 and put the value in y = mx + c  it will give 14 = 2 , which is wrong.

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If we changed the 2 to a 5 in the domain restriction, the graph would become a line that extends infinitely in both directions.

Domain restriction in mathematics is the process of restricting the possible values of a variable to a certain range or subset of values. This can be done by limiting the domain of a function or equation. In general, domain restriction involves identifying a range of values for which the function or equation is valid and then discarding any values that do not fall within that range. For example, if a function was defined for all real numbers, but the domain was restricted to only positive values, then the function would no longer be valid for negative numbers.

If we changed the 2 to a 5 in the domain restriction, the graph would become a line that extends infinitely in both directions. This is because the equation y = 2x + 5 is equivalent to y = 5x, which is a line with a slope of 5 and a y-intercept of 5.

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Answer:

1.02, 1.1, 1.101

Step-by-step explanation:

use a calculator

Answer:

I think you just multiple 9, 8, 9 and 7?

Using mathematical operations, Eric's total earnings from selling one large necklace and three small necklaces are $6.10.

The total earnings from the sales of large and small necklaces by Eric are determined as the sum of the revenue from the sale of both necklaces.

For each class, the revenue is determined by multiplying the units sold and the unit selling price.

The two basic mathematical operations involved in determining the total revenue are multiplication and addition.

The selling price of a large necklace per unit = $4.90

The selling price of a small necklace per unit = $0.40

The number of large necklaces sold = 1

The number of small necklaces sold = 3

The total earnings = $6.10 ($4.90 + 3 x $0.40)

Thus, using the mathematical operations of multiplication and addition operations, the total earnings from the sales of the large and small necklaces are obtained.

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Answer: $13.7

Step-by-step explanation:

$4.90 + $4.40 = $9.30      $9.30 +$4.40 = $13.7

Answer:

C. No; you would need to know that each pair of diagonals is perpendicular.

Step-by-step explanation:

It is not sufficient to establish that MNOP and TQRS are congruent parallelograms given that MO=TR and NP=QS. Parallelograms that are congruent have the same size and form. A common method for demonstrating that two parallelograms are congruent is to use one of the following criteria:

SSS (Side-Side-Side) : If all three pairs of corresponding sides are congruent.

SAS (Side-Angle-Side): If two pairs of corresponding sides and the included angle are congruent

ASA (Angle-Side-Angle): If two pairs of corresponding angles and the included side are congruent

HL (Hypotenuse-Leg): If the hypotenuse and one leg of one right triangle are congruent to the hypotenuse and one leg of another right triangle

CPCTC (Corresponding parts of Congruent Triangles are Congruent)

Given that we only know that MO=TR and NP=QS, we do not have enough information to prove that the parallelograms are congruent. It is missing information about the angles and the diagonals of the parallelograms.

In addition to that, we need to know that the diagonals of the parallelograms bisect each other. If this is the case, then we can use HL to prove that the parallelograms are congruent.

Answer:

0.27

Step-by-step explanation:

I hope this helps :)

The given algebraic expression when solved to the nearest tenth is 5.6

2.7 - 6.8x = - 6.8 - 5.1x

collect like terms

2.7 + 6.8 = -5.1x + 6.8x

9.5 = 1.7x

divide both sides by 1.7

x = 9.5/1.7

x = 5.6

Therefore, the algebraic expression is given by x = 5.6

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Answer:

Step-by-step explanation:

To calculate measure of the angle of a given triangle apply cosine rule :

c² = a² + b² - 2abcos C

b² = a² + c² - 2ac cos B

a² = c² + b² - 2cbcos A and by comparison find the smallest and the largest angle.

As given in the question,

Consider a triangle ABC to determine the smallest and the largest angle of the triangle,

Side opposite to angle A = BC

Side opposite to angle B = AC

Side opposite to angle C = AB

Let

side AB = c

side AC = b

side BC = a

To determine the measure of the angle using side measurement apply

cosine rule :

c² = a² + b² - 2abcos C

b² = a² + c² - 2ac cos B

a² = c² + b² - 2cbcos A

Calculate measure of all the angles and compare them to determine smallest and largest angle of the triangle.

Therefore, to find the measure of the angle of a triangle use cosine rule and by comparison determine the smallest and the largest angle.

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Therefore , the solution of plotting data comes out to be each whisker has a crossbar at the very end that is optional and has no significance in terms of length.

A graph illustrating the correlation between two extra variables is the most common way to present data using a chart. It is also permitted to use diagrams that were manually or digitally drawn. starting at the origin, go 3 units up, then 2 units to the right. It is necessary to display the numbers for the positions 2, 3, and 4 on the reference system. Make your points really clear. 2.3 is represented by the pinkish dot with letter P. For each value in a data collection, you must first create a number line before you can create a line chart.

Here,

The boxplot, in its most basic version, visualizes five sample statistics: the minimum, the smallest value, the mean, the upper quartile, and the maximum.

The plot's box is a rectangle with ends at each quartile that encloses the sample's middle half. Therefore, the box's length represents the sample's interquartile range.

Nothing specific is represented by the box's other dimension. At the sample median, a line is drawn from across box.

Up until they hit the sampling maximum and minimum, whiskers extend from the box's two ends.

Each whisker has a crossbar at the very end that is optional and has no significance in terms of length.

Therefore , the solution of plotting data comes out to be each whisker has a crossbar at the very end that is optional and has no significance in terms of length.

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For our pyramid, this gives us the volume of the pyramid (1/3)x²y.

Let the length of base be x and height be y

Volume of pyramid = [tex]\frac{1}{3}[/tex]× l× b× h

The volume of a right rectangular prism is found by finding the area of the base and multiplying by the height.  This is because there are "layers" of the base from the bottom to the top, making the height the number of "layers."

However, in a pyramid, the shape comes to a point.  This makes the volume of a pyramid 1/3 of that of the corresponding prism.

For our pyramid, the area of the base would be x(x) = x².  

There are y layers of this base, so this would be x²y.  

Since it is a pyramid, this gives us the volume of the pyramid (1/3)x²y.

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The required product are as follows,
A: -4p²q²-3pq = 4c²[1 - 3c²]     B: 4c²-12c⁴ = 4c²[1 - 3c²]    
C: 3m²+9m³ = 3m²{1 + 3m}       D: c³+c⁷ = c³[1 + c⁴]
E: 24x⁴ - 16x⁸ = 8x⁴[3 - 2x²]

The process in mathematics to operate and interpret the function to make the function or expression simple or more understandable is called simplifying and the process is called simplification.

Here,
(a)
Given expression,
-4p²q²-3pq = -pq (4pq + 3)

Similarly,
B: 4c²-12c⁴ = 4c²[1 - 3c²]

C: 3m²+9m³ = 3m²{1 + 3m}

D: c³+c⁷ = c³[1 + c⁴]

E: 24x⁴ - 16x⁸ = 8x⁴[3 - 2x²]

Thus, the required products has be illustrated above.

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The sum of all the elements of set S is -(220/7).

To express the function (x^2+5x +y)/(x^2+7x - 44) as a quotient of two linear functions, the denominator must be a factor of the numerator. In other words, (x^2+7x - 44) must divide (x^2+5x +y) without leaving any remainder. To find the sum of the elements of S, we can set the numerator equal to the denominator multiplied by a constant and solve for y.

x^2+5x +y = c(x^2+7x - 44)

The constant c is a scalar value.

x^2+5x +y = cx^2 +7cx - 44c

we can now equate the coefficients of x^2 and x.

1 = c

and, 5 = 7c

now we can solve for c:

c = 5/7

Now we can substitute the value of c back into the equation:

x^2+5x +y = (5/7)(x^2+7x - 44)

=> x^2+5x +y = (5/7)x^2 + (35/7)x - (220/7)

we can now equate the constant terms:

y = -(220/7)

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Answer:

The prime factors of 12 are 2 x 2 x 3.

So the composite factors of 12 are:

1, 2, 3, 4, 6 and 12.

Step-by-step explanation:

You will get the x and y interceptions by substituting. To make it easier, put x=0 , 3, -3 and solve the equation.

Hope this helps you.

Answer:

f(x) = (1/5)x - (2/5)

Step-by-step explanation:

The linear function can be written in the form of f(x) = mx + b, where m is the slope and b is the y-intercept.

To find the rule for the linear function when x=-10, y=-1, when x=0, y=1 and when x=10, y=3, we can use the two points method.

We can start by finding the slope (m) of the function using the following formula:

m = (y2 - y1) / (x2 - x1)

Where (x1, y1) and (x2, y2) are two points on the line.

Using the point (-10, -1) and (10, 3) we get:

m = (3 - (-1)) / (10 - (-10)) = 4/20 = 1/5

Now that we know the slope, we can use the point-slope form of the equation of a line to find the equation of the line:

y - y1 = m(x - x1)

Plug in one of the points and the slope that we found:

y - (-1) = (1/5)(x - (-10))

y = (1/5)x - (2/5)

So the equation of the linear function is f(x) = (1/5)x - (2/5)

This is the rule of the linear function when x=-10, y=-1, when x=0, y=1 and when x=10, y=3.

Patrice needs to consume more than 1200 calories, but less than 1600 calories.

In mathematics, inequalities specify the connection between two non-equal numbers. Equal does not imply inequality. Typically, we use the "not equal sign ()" to indicate that two values are not equal. But several inequalities are utilized to compare the numbers, whether it is less than or higher than.

Given, Patrice is trying a low-calorie diet. She would like to keep her calories consumed between the levels shown in the following compound inequality: 2450 < 2x + 50 and 2x + 50 < 3250.

From the first inequality

2450 < 2x + 50

2400 < 2x

x > 1200

From the second inequality

2x + 50 < 3250.

2x < 3200

x < 1600

Therefore, x > 1200 and x < 1600; Patrice needs to consume more than 1200 calories, but less than 1600 calories.

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Answer:

j=16.85

s=8.95

Step-by-step explanation:

j=jeans s=shirt

3j+6s=104.25

4j+5s=112.15

working:

3j+6s=104.25 dollars

4j+5s=112.15 dollars

(get j to be the same)

12j+24s=417 dollars

12j+15s=336.45 dollars

(subtract them)

9s=80.55 dollars

s=8.95 dollars

(substitute in)

(3 x j)+(6x8.95)=104.25 dollars

3 x j= 104.25-(6x8.95)

j=50.55/3 (50.55 divided by 3)

j=16.85 dollars

substitute in to double check

(3 x 16.85) + (6 x 8.95) = 104.25 dollars

check with the other equation and it works also, so that must be the values of j and s (jeans and shirt)

(4 x 16.85) + (5 x 8.95)=112.15 dollars

j=16.85

s=8.95

Please find attached herewith the solution of your question.

Hope it helps

In the expression, the value of K is - 12.

Mathematical expression is defined as the collection of the numbers variables and functions by using operations like addition, subtraction, multiplication, and division.

We have to given that;

⇒ 4x + 3 is a factor of 20x³ + 23x² - 10x + k.

We know that;

If 4x + 3 is a factor of 20x³ + 23x² - 10x + k, then, the value of x satisfy the given equation.

Hence, We get;

The value of x is,

⇒ 4x + 3 = 0

⇒ x = - 3/4

Substitute value of x in given equation, we get;

⇒ 20x³ + 23x² - 10x + k = 0

⇒ 20(-3/4)³ + 23(-3/4)² - 10(-3/4) + k = 0

⇒ - 540/64 + 207/16 + 30/4 + k = 0

⇒ (- 540 + 828 + 480 + 64k) / 64 = 0

⇒ 768 + 64k = 0

⇒ 64k = - 768

⇒ k = - 768 / 64

⇒ k = - 12

Thus, The value of k = - 12

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On solving the provided question, we can say that by equation so he has to play 10 games at each arcade,  to spend the same amount of money at each arcade

A mathematical equation is a formula that joins two statements and uses the equal symbol (=) to indicate equality. A mathematical statement that establishes the equality of two mathematical expressions is known as an equation in algebra. For instance, in the equation 3x + 5 = 14, the equal sign places the variables 3x + 5 and 14 apart. The relationship between the two sentences on either side of a letter is described by a mathematical formula. Often, there is only one variable, which also serves as the symbol. for instance, 2x – 4 = 2.

the equation that we can create here is

Kabir paid an entrance of $5 plus an additional 0.75 per game at a local arcade.

he and a friend went to another arcade where kabir paid $1.25 per game, but there was no entrance fee

let kabir played 10 games.

then at arcade 1 he spends $5 + (10*0.75) = 5 + 7.5 = $12.5

now at arcade 2 = 12.5/1.25 = 10 to spend the same amount of money at each arcade

so he has to play 10 games at each arcade,  to spend the same amount of money at each arcade

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Answer:

x=151/99

Step-by-step explanation:

x=1.525252

100x= 152.525252

-x=1.525252

99x=151

x=151/99

Answer: havles and half have a difference of the amount of halves

Step-by-step explanation:  such as one half is just 1 havles, but 2 halves you have 2 a halfs.

y-intercept: (0,19)

The y-intercept of an equation is the point where the graph of the equation crosses the y-axis. In this case, when x = 0, the equation simplifies to y = 19, so the y-intercept of the graph is (0, 19).

The coefficient of the x² term is 0.9, which is positive, so the parabola opens upwards.

So the answer is

Parabola opens upward.

The probability of no leaks in a 2,500-meter section of pipe using the Poisson approximation to the binomial is 0.857.

The probability of no leaks in a 2,500-meter section of pipe using the Poisson approximation to the binomial is 0.857.

1. Calculate the expected value (μ) for the Poisson Distribution:

μ = λ × t = (1 leak per 1,000 meters) × (2,500 meters) = 2.5

2. Calculate the probability of no leaks using the Poisson Distribution:

P(X=0) = e-μ × (μ^0/0!) = e-2.5 × (2.5^0/0!) = 0.857

The probability of no leaks in a 2,500-meter section of pipe using the Poisson approximation to the binomial is 0.857.

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Answer

212

because I added the 98,4,100,10

Answer:

This question is based on the concept of mean. Therefore, the scores for the four games were 97, 98, 98, 107.

Given:

Sue played four games of golf. For these games her modal score was 98 and her mean score was 100. Her range of scores was 10.

According to the question,

If the modal score is 98 then, there must be two games where she scored 98.

The mean is the total of all of her scores divided by the number of games,

We get,

98+98+x+y=400

x+y= 204

As it is given that, the range is 10 and x is the lowest and y is the highest we can say that:

As we know that, her range of scores was 10,

97+10= 107

Therefore, the scores for the four games were 97, 98, 98, 107.