How many of the scores (from the group that studied in Question #8).


Studied: 87, 100, 94, 79, 92, 100, 95, 83, 89, 99, 100, 91, 89, 95, 100, 93, 96, 83

Did Not Study: 82, 72, 45, 91, 58, 83, 65, 87, 90, 77, 73, 89

. Are within one mean absolute deviation of the mean? Which scores are within one mean absolute deviation of the mean? (Please show all work). Worth a ton of points!!!!!!

The solution to the given system is:

x(t) = (-2c₂/9) * exp(3t) * [3; -6] + c₂ * exp(-6t) * [-6; 2]

y(t) = (-2c₂/9) * exp(3t) * [3; -6] + c₂ * exp(-6t) * [-6; 2]

What is the system of equations?

A system of equations is a collection of one or more equations that are considered together. The system can consist of linear or nonlinear equations and may have one or more variables. The solution to a system of equations is the set of values that satisfy all of the equations in the system simultaneously.

To find the solution to the constant coefficient linear system, we can use the eigenvectors and eigenvalues provided.

Given:

X₁ = -4, eigenvalue λ₁ = 3, eigenvector v₁ = [3; -6]

X₂ = 0, eigenvalue λ₂ = -6, eigenvector v₂ = [-6; 2]

The general solution of the system is given by:

x(t) = c₁ * exp(λ₁ * t) * v₁ + c₂ * exp(λ₂ * t) * v₂

y(t) = c₁ * exp(λ₁ * t) * v₁ + c₂ * exp(λ₂ * t) * v₂

Plugging in the values:

x(t) = c₁ * exp(3t) * [3; -6] + c₂ * exp(-6t) * [-6; 2]

y(t) = c₁ * exp(3t) * [3; -6] + c₂ * exp(-6t) * [-6; 2]

To find the particular solution, we need to determine the values of c₁ and c₂ using the initial conditions:

x(0) = 0, y(0) = 0

Substituting t = 0:

x(0) = c₁ * exp(0) * [3; -6] + c₂ * exp(0) * [-6; 2] = c₁ * [3; -6] + c₂ * [-6; 2] = [0; 0]

y(0) = c₁ * exp(0) * [3; -6] + c₂ * exp(0) * [-6; 2] = c₁ * [3; -6] + c₂ * [-6; 2] = [0; 0]

This gives us the following system of equations:

3c₁ - 6c₂ = 0

-6c₁ + 2c₂ = 0

Solving this system of equations, we can find the values of c₁ and c₂. Adding twice the second equation to the first equation:

3c₁ - 6c₂ + 2(-6c₁ + 2c₂) = 0

3c₁ - 6c₂ - 12c₁ + 4c₂ = 0

-9c₁ - 2c₂ = 0

Simplifying:

9c₁ + 2c₂ = 0

We can solve this equation to find the values of c₁ and c₂:

c₁ = -2c₂/9

Therefore, the solution to the given system is:

x(t) = (-2c₂/9) * exp(3t) * [3; -6] + c₂ * exp(-6t) * [-6; 2]

y(t) = (-2c₂/9) * exp(3t) * [3; -6] + c₂ * exp(-6t) * [-6; 2]

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Answer:

6.5

Step-by-step explanation:

26 - 13 = 13

13/2 = 6.5

Answer:

6.5

Step-by-step explanation:

the average would add the 2 together then divide by 2

26 - 13 = 13

13 / 2 = 6.5

Answer:

what's this?

Step-by-step explanation:

Answer:

what the question?

Step-by-step explanation:

im sorry because i dont watch a anime

Answer:

Step-by-step explanation:

Givens

V = 75716

pi = 3.14

r = ?

Formula

V =  (4/3) pi * r^3

Solution

75716 =  (4/3) * 3.14 * r^3              Multiply both sides by 3/4

75716 * 3/4 = 3.14 * r^3

56787 = 3.14 r^3                           Divide by 3.14

56787 / 3.14 = 3.14 * r^3/3.14

18085 = r^3

∛18985 = ∛ r^3

r = 26.25

The HL postulate states that two triangles are congruent if the hypotenuse and leg of one right triangle are congruent with the hypotenuse and leg of another right triangle.

Hypotenuse Leg Theorem

hypotenuse theorem proof shows how a given set of right triangles is congruent when the corresponding hypotenuses and one leg are of equal length.

Statement:

Two triangles are congruent by the hypotenuse leg theorem if the hypotenuse and one leg of a right triangle are congruent with the hypotenuse and leg of another right triangle.

given: where ABC is an isosceles triangle, AB = AC, and AD is perpendicular to BC.

Proof : AD as altitude is perpendicular to BC and forms ADB and ADC as right triangles. AB and AC are the respective hypotenuses of these triangles and we know they are equal. Because AD = AD is common for both triangles.

That is, AB = AC and AD is common.

Therefore, the hypotenuse and pair of legs of the two right-angled triangles satisfy the definition of the HL theorem.

We know that angles B and C are equal (property of isosceles triangle).

We also know that the angles BAD and CAD are equal (AD bisects BC and BD equals CD).

Therefore, △ADB ≅ △ADC

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Step-by-step explanation:

check it.. i have solved this for you

Answer:

18

Step-by-step explanation:

Using the product rule

Given

y = f(x). g(x) , then

\(\frac{dy}{dx}\) = f(x). g'(x) + g(x). f'(x)

Here

f(x) = \((2x+3)^{5}\) ⇒ f'(x) = 5\((2x+3)^{4}\) × \(\frac{d}{dx}\) (2x + 3) , then

f'(x) = 10\((2x+3)^{4}\)

g(x) = \((x+2)^{8}\) ⇒ g'(x) = 8\((x+2)^{7}\) × \(\frac{d}{dx}\) (x + 2) , then

g'(x) = 8\((x+2)^{7}\)

Thus

\(\frac{dy}{dx}\) = \((2x+3)^{5}\) . 8\((x+2)^{7}\) + \((x+2)^{8}\) . 10\((2x+3)^{4}\) ← factor expression

    = \((2x+3)^{4}\) \((x+2)^{7}\) [ 8(2x + 3) + 10(x + 2)

    = \((2x+3)^{4}\) \((x+2)^{7}\) (16x + 24 + 10x + 20)

    = \((2x+3)^{4}\) \((x+2)^{7}\) (26x + 44)

Thus

\(\frac{dy}{dx}\) ( x = - 1)

= \(1^{4}\) × \(1^{7}\) × 18

= 1 × 1 × 18

= 18

To find the volume of the inscribed cube, we need to determine the edge length of the cube first. Let's denote the edge length of the inscribed cube as "x".

In a cube inscribed in a sphere, the diameter of the sphere is equal to the diagonal of the cube. Therefore, the diameter of the sphere is equal to the space diagonal of the large cube, which is given as 9 inches.

The space diagonal of a cube with edge length "a" can be found using the Pythagorean theorem:

Diagonal² = a² + a² + a²

Diagonal² = 3a²

Since the diameter of the sphere is 9 inches, we can write:

3a² = 9²

3a² = 81

a² = 81 / 3

a² = 27

a = √27

a = 3√3

Now we know the edge length of the large cube, which is 3√3 inches. The volume of a cube is given by V = a³, where "a" is the edge length.

Volume of the inscribed cube:

V = (3√3)³

V = 3³ * (√3)³

V = 27 * 3

V = 81 cubic inches

Therefore, the volume of the inscribed cube is 81 cubic inches.

The volume of the cube inscribed in the sphere, given the sphere is inscribed in a cube with an edge length of 9 inches, is 81 cubic inches.

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Gareth had £4,199,999.94 in his account at the start of 2015 at rate 5%.

Compound interest is computed as a percentage of the principle plus the accrued interest, whereas simple interest is determined as a fixed percentage of the original amount. In other words, whereas compound interest is calculated on the principle amount plus any interest that has previously been earned, simple interest is computed on the initial principal amount. So, over time, compound interest often produces larger returns than simple interest, particularly for long-term investments.

The compound interest is given by:

\(A = P(1 + r/n)^{(n*t)}\)

Substituting the given values, we get:

\(P = 4,862,025 / (1 + 0.05/1)^{(1*3)}\\P = 4,862,025 / 1.157625\\P = 4,199,999.94\)

Gareth had £4,199,999.94 in his account at the start of 2015.

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ANSWER

f(x) = 3x - 6

EXPLANATION

The equation of a line is:

where m is the slope and b is the y-intercept.

The formula for the slope of a line passing through points (x1, y1) and (x2, y2) is:

So the slope for this line is:

For now we have :

To find the y-intercept b we have to replace with one of the points and solve for b:

So the equation is:

Answer: 2, -4, -10. -16, ..., -6n+8  n=1, 2, 3, ...

Step-by-step explanation:

2, -4, -10, -16

a₁=2

a₂=-4

a₃=-10

a₄=-16

a₂-a₁=-4-2=-6

a₃-a₂=-10-(-4)=-6

a₄-a₃=-16-(-10)=-6

Hence, this is an arithmetic progression: a₁=2    d=-6

\(a_n=a₁+(n-1)d\\a_n=2+(n-1)(-6)\\a_n=2-6n+6\\a_n=-6n+8\)

Answer:

the answer is 12

Step-by-step explanation:

its twelve because there is 4 quiarts in a gallon and 4*3=12

So to find any last digit of 3^2011 divide 2011 by 4 which comes to have 3 as remainder. Hence the number in units place is same as digit in units place of number 3^3. Hence answer is 7.

1. The mean number of households that will have one or more cats is 15.

2. This means that getting 10 or fewer households with cats out of 50 is not extremely unusual, as there is a 5.3% chance of it happening by random chance alone.

The mean number of households that will have one or more cats can be calculated as:

Mean = (30/100) x 50 = 15

Therefore, the mean number of households that will have one or more cats is 15.

The standard deviation can be calculated using the formula:

Standard deviation = \(\sqrt{(npq)}\)

where n is the sample size (50), p is the probability of success (30/100 = 0.3), and q is the probability of failure (1 - p = 0.7).

Standard deviation = sqrt(50 x 0.3 x 0.7) = 3.08

Rounding to 1 decimal place, the standard deviation is 3.1.

If 10 of the 50 random households had one or more cats, we can calculate the z-score as:

z = (x - μ) / σ

where x is the observed number of households with cats (10), μ is the mean (15), and σ is the standard deviation (3.1).

z = (10 - 15) / 3.1 = -1.61

Looking up the z-score in a standard normal distribution table, we find that the probability of getting a z-score of -1.61 or lower is 0.053.

This means that getting 10 or fewer households with cats out of 50 is not extremely unusual, as there is a 5.3% chance of it happening by random chance alone.

However, it is somewhat lower than the expected value of 15, which suggests that the sample may not be fully representative of the population.

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Answer:

3n - 4

Step-by-step explanation:

Answer:

The fact that the expressions are equivalent means that for any value of the variables, the two expressions have the same solution.

Step-by-step explanation:

Answer:

if they have the same value irrespective of the value of the variable(s) in them

Answer:

2/3

Step-by-step explanation:

it goes up 2 and to the right 3 every time the line connects to both lines/axises of the graph

hope this helps u <3

Answer:

(x – 4)^2 + (y +10)^2 = 64

Step-by-step explanation:

Recall that the formula for a circle is:  (x – h)^2 + (y – k)^2 = r^2

1. Find the Radius (r): Luckily, we can count the distance since the coordinates have the same y-value. 12 - 4 = 8. So, r^2 = 8^2 = 64

2.  Find h and k. These are the x and y coordinates of the center of the circle. So, h = 4, k = -10

3. Substitute the values in the equation:

(x – 4)^2 + (y – (-10))^2 = 8^2

(x – 4)^2 + (y +10)^2 = 64

Answer:

  (x -4)² +(y +10)² = 64

Step-by-step explanation:

Given a circle through point (12, -10) with center (4, -10), you want its equation.

The equation of a circle with center (h, k) and radius r is ...

  (x -h)² +(y -k)² = r²

You are given the center (h, k) = (4, -10). You only need to know the radius to finish the equation. That will be the value of r that makes the equation true at the given point:

  (x -4)² + (y +10)² = r²

  (12 -4) + (-10 +10)² = r² . . . . . . with (x, y) = (12, -10), the point on the circle

  8² + 0 = r²

The equation of the circle is (x -4)² +(y +10)² = 64.

__

Additional comment

The equation of a circle is essentially a statement of the distance formula. It is telling you that the circle consists of all points that are distance r from the center.

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Answer:

no linear relationship exists between the two variables being compared

Step-by-step explanation:

The system capacity is 2 units per minute, the bottleneck stage is Stage A, and the utilization of Stage 3 is 100%.

A line process has three processing stages with the characteristics given below:

Stage A B C Unit processing time(minutes) 1 2 3 Number of machines 1 1 2 Machine availability 90% 100% 100% Process yield at stage 100% 100% 100%

To determine the system capacity and the bottleneck stage and utilization of Stage 3:

The system capacity is calculated by the product of the processing capacity of each stage:

1 x 1 x 2 = 2 units per minute

The bottleneck stage is the stage with the lowest capacity and it is Stage A. Therefore, Stage A has the lowest capacity and determines the system capacity.The utilization of Stage 3 can be calculated as the processing time per unit divided by the available time per unit:

Process time per unit = 1 + 2 + 3 = 6 minutes per unit

Available time per unit = 90% x 100% x 100% = 0.9 x 1 x 1 = 0.9 minutes per unit

The utilization of Stage 3 is, therefore, (6/0.9) x 100% = 666.67%.

However, utilization cannot be greater than 100%, so the actual utilization of Stage 3 is 100%.

Hence, the system capacity is 2 units per minute, the bottleneck stage is Stage A, and the utilization of Stage 3 is 100%.

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Answer:

x=9

Step-by-step explanation:

Answer: 9

Step-by-step explanation:

i got it right

Answer:

218.57

Step-by-step explanation:

Since it is an isoceles triangle, the sides are 32, 32, and 14.

Using Heron's Formula, which is Area = sqrt(s(s-a)(s-b)(s-c)) when s = a+b+c/2,  we can calculate the area.

(A+B+C)/2  = (32+32+14)/2=39.

A = sqrt(39(39-32)(39-32)(39-14) = sqrt(39(7)(7)(25)) =sqrt(47775)= 218.57.

Hope this helps have a great day :)

Check the picture below.

so let's find the height "h" of the triangle with base of 14.

\(\begin{array}{llll} \textit{using the pythagorean theorem} \\\\ a^2+o^2=c^2\implies o=\sqrt{c^2 - a^2} \end{array} \qquad \begin{cases} c=\stackrel{hypotenuse}{32}\\ a=\stackrel{adjacent}{7}\\ o=\stackrel{opposite}{h} \end{cases} \\\\\\ h=\sqrt{ 32^2 - 7^2}\implies h=\sqrt{ 1024 - 49 } \implies h=\sqrt{ 975 }\implies h=5\sqrt{39} \\\\[-0.35em] ~\dotfill\)

\(\stackrel{\textit{area of the triangle}}{\cfrac{1}{2}(\underset{b}{14})(\underset{h}{5\sqrt{39}})}\implies 35\sqrt{39} ~~ \approx ~~ \text{\LARGE 218.57}\)

The Laplace transform of the motion equation is mx(t) + dx(t) + kx(t) = f(t).

Given: Motion equation is mx(t) + dx(t) + kx(t) = f(t); X(s) and

F(s) be the Laplace transforms of the position x(t) and external force f(t) respectively.

Transfer function is G(s)= X(s)/F(s) = 1/ms² + ds + k

To derive a transfer function of a mass-spring-damper system from its equation of motion, we have to follow these steps:

Step 1: Take the Laplace transform of the motion equation.

Laplace Transform of the given equation is,  mX(s)s² + dX(s)s + kX(s) = F(s)

Step 2: Write X(s) in terms of F(s)X(s) = F(s) / m s² + d s + k

Step 3: Now the transfer function can be derived using the ratio of X(s) to F(s).

Transfer Function = G(s) = X(s) / F(s)G(s) = 1 / ms² + ds + k

Hence, the transfer function of a mass-spring-damper system from its equation of motion is G(s) = 1 / ms² + ds + k. 

In order to derive a transfer function of a mass-spring-damper system from its equation of motion, the following steps are necessary:

  Take the Laplace transform of the motion equation.

The Laplace transform of the motion equation is mx(t) + dx(t) + kx(t) = f(t).

X(s) and F(s) are the Laplace transforms of the position x(t) and external force f(t), respectively.

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Answer:

0.001 and 1/1000

Step-by-step explanation:

Answer:

Step-by-step explanation:

By using the Median Function in Excel  =Median()

Answer:

d yes it is a function for a specific taxable income at the end of the year you will pay only one income tax amounts

Based on a survey of 2718​ people, a research center concluded that​ 32% of Americans​ "always" make a special effort to sort and recycle​ glass, cans,​ plastic, or​ papers. Participation bias is there in this case.

The bias would have no effect on a reader's perception of the assertion because no group of persons is much more likely to respond to the poll than any other.

When comparisons are performed between groups of patients who differ in outcome determinants and the differences are connected to the result, participation bias emerges.

1. Participation bias is inherent in studies that involve participant enrollment.

2 Because selective participation might jeopardize study external validity, determining the magnitude of participation bias is critical for optimizing inference from these investigations.

Few community studies have looked into the impact of participation bias. Nonparticipants in one population-based study of myocardial infarction (MI) were older, had more comorbidity, and had a lower survival rate than participants.

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Answer:

Step-by-step explanation:

We must represent the number 4.082, the options you are giving us are from an apparent decomposition of the previous number

The correct option is B: Four and eighty-two thousandths, It is indeed 4 whole units and 82 thousandths. The other options are not correct