Help Please!! On the 1st and 2nd one. just the decent and independent variable and the equation please!

The null hypothesis (H0) says about the treatment is that it does not affect the scores.

Hypothesis testing is the statistical method that uses the data from a sample to conclude a population parameter or a population distribution.

There are two types of hypothesis testing. They are the null hypothesis and the alternative hypothesis.

It is given that,

A researcher selects a sample and administers a treatment to the individuals in the sample.

A hypothesis test is conducted on the sample.

So, the null hypothesis (H0) says about the treatment is that it does not affect the score obtained.

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Answer:

$1,512.50

Step-by-step explanation:

1,250 x 0.03 = 37.50

37.50 x 7 = 262.50

1,250 + 262.50 = 1,512.50

False. The variance of a random sample, denoted as Var(X), is not equal to the population standard deviation (σ), denoted as σ.

False. The statement "var(x) = o" is not true. The correct statement should be "var(x) = σ^2," where σ is the standard deviation of the random sample. The variance of a random sample, denoted as var(x), represents the average squared deviation of the sample observations from the sample mean. It is a measure of the dispersion or spread of the data. The standard deviation, represented by σ, is the square root of the variance and provides a measure of the average deviation from the mean.

In summary, the correct statement is that the variance of a random sample is equal to the square of the standard deviation, not "o."

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The senate has 4+22 = 26 members this year.

Let x be the number of Democrat members in the senate.

Last year, the number of Republican members was x+20

This year, the number of Republican members is (x+20) - 2 = x+18

This year, the number of members in the senate is 2/3*(x+18) = 2/3*x+12

So the number of members in the senate this year is x+12

To find the value of x, we can use the fact that the number of members in the senate this year is the same as last year.

x + (x + 20) = x + 12

x+x+20 = x + 12

2x = 8

x = 4

So the senate has 4 Democrat members and x+18 = 4+18 = 22 Republican members.

Therefore the senate has 4+22 = 26 members this year.

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Here is the completed ratio table:

Gnats          2     14       7    5

Flies            8      56     28   20

The equivalent ratios are 2 : 8, 14 : 56, 7 : 28, 5 : 20.

Ratio expresses the relationship between two or more numbers. It shows the number of times that one value is contained within other value(s).

In order to determine the equivalent ratios, express the ratio of gnats to flies, 2 : 8 in its simplest form. 2 : 8 is equivalent to 1 : 4. This means that all the ratios in the ratio table when expressed in its simplest form must have a ratio of gnats to flies of 1 : 4.

Number of flies when there are 14 gnats = 14 x 4 = 56

Number of flies when there are 5 gnats = 5 x 4 = 20

Number of gnats when there are 28 flies = 28 / 4 = 7

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The values provided in the deflection profile are rounded to 4 significant figures)

(a) The discrete model equation using the 2nd Order Centered Method:

The second-order centered difference approximation for the second derivative of y at point x is:

\(y''(x) ≈ (y(x+h) - 2y(x) + y(x-h))/h^2\)

Applying this approximation to the given differential equation, we have:

\((y(x+h) - 2y(x) + y(x-h))/h^2 = -wLx/EI\)

(b) The system of equations after substituting all numerical values:

Using Ar = 24 inches, we can divide the beam into 5 discrete points (n = 4), with h = L/(n+1) = 120/(4+1) = 24 inches.

At x = 0, we have: (\(y(24) - 2y(0) + y(-24))/24^2 = -wLx/EI\)

At x = 24, we have: (\(y(48) - 2y(24) + y(0))/24^2 = -wLx/EI\)

At x = 48, we have: (\(y(72) - 2y(48) + y(24))/24^2 = -wLx/EI\)

At x = 72, we have: \((y(96) - 2y(72) + y(48))/24^2 = -wLx/EI\)

At x = 120, we have: (\(y(120) - 2y(96) + y(72))/24^2 = -wLx/EI\)

(c) Solving the system with Python and providing the profile for the deflection:

To solve the system of equations numerically using Python, the equations can be rearranged to isolate the unknown values of y. By substituting the given numerical values for E, I, w, L, h, and the boundary conditions y(0) = y(120) = 0, the system can be solved using a numerical method such as matrix inversion or Gaussian elimination. The resulting deflection values at each discrete point, including the boundary values, can then be obtained.

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The actual calculation of the integral may involve more complex methods, and the numerical value of the arc length will depend on the specific numerical values of t within the given interval.

To find the speed and arc length of the curve defined by the vector function r(t) = (3t^2 - 1, 1 - 8t^3, 12t - 4) on the interval 1 ≤ t ≤ 4, we need to calculate the magnitude of the velocity vector and then integrate it over the given interval.

The velocity vector v(t) is the derivative of the position vector r(t):

v(t) = r'(t) = (6t, -24t^2, 12).

The speed of the curve at any given point is the magnitude of the velocity vector:

|v(t)| = √(6t)^2 + (-24t^2)^2 + 12^2

= √(36t^2 + 576t^4 + 144)

To find the arc length, we integrate the speed function over the interval 1 ≤ t ≤ 4:

Arc length = ∫[1, 4] |v(t)| dt

= ∫[1, 4] √(36t^2 + 576t^4 + 144) dt

To evaluate this integral, we can use numerical methods or approximation techniques.

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The value of p in the binomial expansion is 1920.

Here we have been given

\((a-kx^m)^n = \frac{243}{32} - \frac{405}{4}x^{\frac{3}{2}} + 540x^3 - 1440x^\frac{9}{2} + px^6 - qx^\frac{15}{2}\)

Now to calculate the value of p we need to calculate the values of n, m, k, and a using the Binomial Expansion formula.

Now we have 6 terms over here. According to the rule, the power of an expression is

no. of terms in expansion - 1

= 6 - 1

= 5

Now the first term is

\(C^5_0 a^5 = \frac{243}{32}\)

\(or, a^5 = \frac{3^5}{2^5}\)

Hence we get

a = 3/2

Now the second term should be

\(C^5_1 a^4 (-kx^m) =- \frac{405}{4}x^\frac{3}{2}\)

\(-5k\frac{81}{16}x^m =- \frac{405}{4}x^\frac{3}{2}\)

\(or, kx^m = 4x^\frac{3}{2}\)

Hence here we see that k = 4 and m = 3/2

Now we can calculate p by

\(C^5_4 a^1 (-kx^m)^4 = px^6\)

\(5 X \frac{3}{2} X 256x^6 = px^6\)

\(or, 1920x^6 = px^6\)

Hence the value of p is 1920

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Answer:

Step-by-step explanation:

The Area of any Rectangle is

                       AREA = ( Length ) x ( Width )

For this one,    

                       Area = ( 3 1/4 yard) x ( 3 1/3 yard)

                                  =  (13/4  x  10/3)  yard²

                                  =        65/6     yard² .

                                  =    ( 10 5/6 yard² ).  

Answer:

t=1

Step-by-step explanation:

2t+t−3=0

2t+t+−3=0

(2t+t)+(−3)=0(Combine Like Terms)

3t+−3=0

3t−3=0

Step 2: Add 3 to both sides.

3t−3+3=0+3

3t=3

Step 3: Divide both sides by 3.

3t

3

=

3

3

t=1

Answer:

The first 10 digits of pi (π) are 3.1415926535. The first million digits of pi (π) are below, got a good memory? Then recite as many digits as you can in 30 ...

Step-by-step explanation:

Answer:

it is exposed faces so yeah

Step-by-step explanation:

If Sharko had 4 times as many sweets as Miko, then Sharko had 231 more sweets than Miko.

Let the number of sweets that Miko has be = "M",

We know that Sharko had 4 times as many sweets as Miko,

So, Sharko has 4M sweets;

Together, Sharko and Miko share 385 sweets,

So, the equation can be mathematically written as :

⇒ M + 4M = 385,

Simplifying this equation, we get:

⇒ 5M = 385

Dividing both sides by 5, we get:

⇒ M = 77

So, Miko had 77 sweets, and

Sharko has ⇒ 4M = 4×77 = 308 sweets,

To find out how many more sweets Sharko had than Miko,

We write,

⇒ 308 - 77 = 231,

Therefore, The number of sweets that Sharko has more than Miko is 231.

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The given function f(x) = 16^x is an exponential function.

An exponential function is a mathematical function in which an independent variable appears in the exponent. In this case, the base of the function is 16, and the variable x is the exponent.

In the given function f(x) = 16^x, the variable x represents the exponent to which 16 is raised. As x increases, the function value grows rapidly, indicating exponential growth. The base of 16 signifies that the function is being multiplied by 16 for each unit increase in the exponent.

In contrast, a linear function has a constant rate of change, and a quadratic function has a squared term. The given function does not involve a linear relationship or a squared term, which confirms that it is not a linear or quadratic function.

Therefore, based on the given form f(x) = 16^x and the exponential growth nature of the function, we can classify it as an exponential function.

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There are 10,000 probability codes if the four digits can be repeated, as each digit has 10 possible options (0-9). This ensures that customers have a secure and safe way to access their storage containers.

In the event that the four numbers can be repeated, there are 10,000 potential codes. This is because there are 10 potential values for each digit (0-9). If you multiply all the possible options of each number you get 10x10x10x10 which equals 10,000. This means there are 10,000 possible combinations of four digits when the numbers can be repeated. For example, 0000, 1111, 2222, 3333, 4444, 5555, 6666, 7777, 8888, 9999 and all their different combinations with the numbers 0-9 in between them. With this many choices, it can be hard to remember your specific code. However, it also means that there is a low risk of someone else guessing your code. The Store-It-All storage facility is ensuring that their customers have a secure and safe way to access their storage containers.

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Answer:

90 apples in 5 bboxes

Step-by-step explanation:

Answer:

h(x) will be continuous on [0,5] when the value of

k= 4

Step-by-step explanation:

For making h(x) continuous we need to ensure that the functions, kx and x+3 should meet at the point x=1.

For continuity, the left-hand limit and the right-hand limit of h(x) to be equal at x = 1.

Left-hand limit:

lim(x→1-) h(x) = lim(x→1-) kx = k(1) = k

Right-hand limit:

lim(x→1+) h(x) = lim(x→1+) (x + 3) = 1 + 3 = 4

The function to be continuous at x = 1, the left-hand limit and right-hand limit must be equal. Therefore, we need k = 4.

Therefore, for h(x) to be continuous on [0, 5], the value of k must be 4.

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Therefore, the value of k that makes h(x) continuous on [0,5] is k = 4

We have been given a piecewise-defined function h(x) that needs to be continuous on [0, 5]. We have to determine the value of k that will make h(x) continuous. Let's begin by checking if the function is continuous at

x = 1. lim h(x)

as x approaches 1 from the left (i.e., from the interval [0,1)) is equal to

h(1-) = k(1) = k. lim h(x)

as x approaches 1 from the right (i.e., from the interval [1,5]) is equal to

h(1+) = 1+3 = 4.

For the function to be continuous at x = 1, h(1-) must be equal to h(1+), i.e., k = 4. Therefore, the value of k that makes h(x) continuous on [0,5] is k = 4. The value of k that makes h(x) continuous on [0,5] is k = 4.

Therefore, the value of k that makes h(x) continuous on [0,5] is k = 4

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Answer:

The 180 degrees part is right

But it is because they are SUPPLEMENTARY!

Step-by-step explanation:

Supplementary angles add up to 180, complementary only add up to 90 degrees.

Answer:

its right

Step-by-step explanation:

Answer:

535.50

Step-by-step explanation:

hope this helps :)

Answer:

535.50

Step-by-step explanation:

Hope this helps : )

The value of q is -27.

Recall Vieta's Formulas, which state that for a quadratic equation \(ax^2\) + bx + c = 0 with zeroes alpha and beta, the sum of the zeroes is equal to -b/a, and the product of the zeroes is equal to c/a.

In our equation \(x^2\) - 3x + q, the sum of the zeroes alpha and beta is -(-3)/1 = 3.

We are given that 2 alpha + 3 beta = 15. Substitute alpha = (15 - 3 beta)/2 into the equation.

Replace the value of alpha in the sum of zeroes equation: (15 - 3 beta)/2 + beta = 3.

Simplify the equation by multiplying both sides by 2: 15 - 3 beta + 2 beta = 6.

Combine like terms: 15 - beta = 6.

Subtract 15 from both sides: -beta = -9.

Multiply both sides by -1 to solve for beta: beta = 9.

Substitute the value of beta into the sum of zeroes equation: alpha = (15 - 3 * 9)/2 = -3.

Since we have the values of alpha and beta, we can find q using the product of the zeroes formula: q = alpha * beta = -3 * 9 = -27.

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Answer:

The value of the expression of x 3 and y 5. Substitute each x and y with these numbers in equation and which would you get a value? So 4x+6y

4(3)+6(5)=

12+30=42

B. 42 ♥️

Step-by-step explanation:

We have a domain of a function, that is, which x-es can we throw in. But we are asking which y-s will we get given that we can only throw x-es in \((-\infty,4)\).

Let's try \(x=4\) even though we are forbidden to put 4 inside \(h\) we are still able to do so.

So \(h(4)=0.5\cdot4-1=2-1=1\) what we just got is the upper limit of the range. The lower limit is \(h(-\infty)=-\infty\).

So the range is just \((-\infty, 1)\).

Hope this helps :)

Answer:

\(y=2x+4\)

Step-by-step explanation:

\((y-2)= 2(x-(-1))\)

\((y-2)=2(x+1)\)

\(y-2=2x+2\)

\(y=2x+4\)

The volume of the fulgurite, a glass cylinder with a height of 21 inches and diameter of 6 inches, is 189π cubic inches.

To calculate the volume of a cylinder, we use the formula:

V = \(\pi r^{2} h\)

where V is the volume, h is the height, and r is the radius of the cylinder.

First, we need to find the radius of the fulgurite. The diameter is given as 6 inches, so the radius is half of that:

r = \(6 / 2 = 3 inches\)

Next, we can plug in the values for the radius and height into the formula:

V = \(\pi (3 inches)^2(21 inches)\)

Simplifying this expression, we get:

V = \(\pi (9 inches^2)(21 inches)\)

V = 189π cubic inches

Therefore, the volume of the fulgurite is 189π cubic inches. This is an exact value, and it cannot be simplified further unless we use an approximate value for π.

The formula for the volume of a cylinder, V = \(\pi r^2h\), is used to find the amount of space inside a cylindrical object. In the case of the fulgurite, we can use this formula to calculate the volume of the piece of glass. The height of the fulgurite is given as 21 inches, which is the distance between the two circular bases of the cylinder. The diameter is given as 6 inches, so the radius is 3 inches. We can plug these values into the formula to find the volume of the fulgurite, which is 189π cubic inches. This tells us how much space the piece of glass takes up, and it can be useful for understanding the size and shape of the fulgurite.

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The complete question is:

Glass fragments in the shape of a cylinder are called Fulgurites when lightning strikes sand. A student discovered a fulgurite that measured 21 inches height and 6 inches in diameter.

What is the fulgurite's cubic inch volume?

The number of distinct ways to arrange 3 yellow marbles, 5 blue marbles, and 5 green marbles in a row will be 5625.

A permutation is an act of arranging items or elements in the correct order.

There are 3 yellow marbles, 5 blue marbles, and 5 green marbles.

The number of distinct ways to arrange 3 yellow marbles, 5 blue marbles, and 5 green marbles in a row will be

\(\Rightarrow (3 \times 5 \times 5)^2\)

\(\Rightarrow 75^2\)

\(\Rightarrow 5625\)

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The approximate area of the trapezoid is determined as  13.95 unit².

The approximate area of the trapezoid is calculated as follows;

Area = ¹/₂(b₁ + b₂)h

Where;

The y-coordinates of the points on the curve at x=3/2 and x=4 is calculated as follows;

y(3/2) = - (3/2)²/2 + 3/2 + 5

y(3/2) = -9/8 + 3/2 + 5

y(3/2) = 5.375

y(4) = -4²/2 + 4 + 5

y(4) = -8 + 9

y(4) = 1

h = 5.375 - 1 = 4.375

The approximate area of the trapezoid is calculated as;

Area = ¹/₂(5.375 + 1) x 4.375

Area = 13.95 unit²

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Answer:

6300

Step-by-step explanation:

Remember, we do not necessarily round up or down, but to the hundred that is nearest to 6258.

When rounding a number such as 6258 to the nearest hundred, we use the following rules:

A) We round the number up to the nearest hundred if the last two digits in the number are 50 or above.

B) We round the number down to the nearest hundred if the last two digits in the number are 49 or below.

C) If the last two digits are 00, then we do not have to do any rounding, because it is already to the hundred.

In this case, Rule A applies and 6258 rounded to the nearest hundred is:

6300

Answer:

Step-by-step explanation:

it is 6300

Answer:

False.

Step-by-step explanation:

The statement "(dbl num, 2)" does not correctly represent rounding the value of "dbl num" to two decimal places. The correct notation for rounding a number to two decimal places is typically represented as "round(dbl num, 2)" or "dbl num rounded to 2 decimal places."

:)

Answer:

3(x+5)

hope it helps you