I’m stuck on this one can you help? It’s # 8

A sample of matter experiences a decrease in average kinetic energy as it continues to cool. One would anticipate that the particles will eventually come to a complete stop. The temperature at which particles should theoretically stop moving is absolute zero. Thus, option B is correct.

What theory directly contradicts concept of absolute zero?

All molecules are predicted to have zero kinetic energy and, as a result, no molecular motion at absolute zero (273.15°C). Zero is a hypothetical value (it has never been reached).

Absolute zero signifies that there is no kinetic energy involved in random motion. A substance's atoms don't move relative to one another.

Therefore, Kinetic energy because it can create heat which goes against the absolute zero. A gas molecule's kinetic energy tends to zero when the temperature reaches absolute zero.

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Did this today on a test lol.

(0,-7/2)

old version of which the answer may be

The answer would be (C) 20.

Answer:

The 2nd quartile, also known as the median, is the middle value of a dataset, or the value that separates the lower half of the data from the upper half. In a box-and-whisker plot, the 2nd quartile is represented by the line in the middle of the box.

In the given box-and-whisker plot, the 2nd quartile is 12.5, which is the middle value of the data set. This can be determined by looking at the scale on the x-axis and finding the value that is in the middle of the box.

Option B, 12.5, is the correct answer.

Step-by-step explanation:

Answer:

it is between 0 and 1

Step-by-step explanation:

Event A consists of three cars traveling in the same way, Event B of three vehicles traveling in opposite directions, Event C of precisely two vehicles turning right, and Event D of exactly two vehicles traveling in the same direction.

The subset of outcomes where precisely two cars turn right is represented by the intersection of occurrences C and D.

(a.) RRR, LLL, and SSS are the results of event A.

(b.) The event B outcomes are RLS, LRS, SRL, LSR, SLR, and SRR.

(c.) RRR, LRR, and SRR are the results of event C.

(d.) The event D outcomes are RLS, LRS, SRL, LSR, SLR, RRR, and LLL.

(e.) SSS are the outcomes in D'. RRR, LRR, SRR, RLS, LRS, SRL, LSR, and SLR are the outcomes in C union D. RRR and LRR are the outcomes in C when they cross D.

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The property you are referring to is called the associative property of multiplication. According to this property, when multiplying three numbers, the grouping of the numbers does not affect the result. In other words, you can change the grouping of the factors without changing the product.

In the equation you provided: 3x(5x7) = (3x5)7

The associative property allows us to group the factors in different ways without changing the result. So, whether we multiply 5 and 7 first, or multiply 3 and 5 first, the final product will be the same.

Answer: B. 5 pieces

Step-by-step explanation:

36.25 + 2.75 = 39.00 + 2.75 = 41.75 + 2.75 = 44.50 + 2.75 = 47.25 + 2.75 = 50

The length of the straw is √110 inches.

What is rectangle ?

Rectangle can be defined as opposites sides are equal and the area of rectangle is product of length and breadth.

We can use the Pythagorean theorem to find the length of the diagonal of the rectangular box, which will be the length of the straw.

The Pythagorean theorem states that in a right triangle, the square of the length of the hypotenuse (the longest side) is equal to the sum of the squares of the lengths of the other two sides.

In this case, the rectangular box forms a right triangle, and the length of the hypotenuse is the length of the diagonal from the bottom left corner to the top right back corner, which is the length of the straw.

The lengths of the other two sides of the triangle are the dimensions of the rectangular box:

The width is 2 inches, which is the length of one leg of the right triangle.

The height is 5 inches, which is the length of the other leg of the right triangle.

So we can use the Pythagorean theorem as follows:

length of straw = √(2*2 + 5*5 + 9*9)

= √(4 + 25 + 81)

= √110

Therefore, the length of the straw is √110 inches.

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Answer:

I would help but it is just black try to repost it and i will tell you what it is

Step-by-step explanation:

Answer:

The ball was thrown from a height of \(3\; {\rm ft}\).

Step-by-step explanation:

The expression for the height of this ball, \(h(t) = -16\, t^{2} + 40\, t + 3\), represents a parabola (with respect to time \(t\).)

In this expression, "\(3\)" represents the \(y\)-intercept of the parabola- the output of the parabola when the input is \(t = 0\). The reason is that when \(t = 0\!\), terms of this parabola that include \(t\) (\((-16\, t^{2})\) and \(40\, t\)) would evaluate to \(0\):

\(\begin{aligned}h(0) &= -16\times 0^{2} + 40\times 0 + 3 = 3\end{aligned}\).

In the case of this ball, the term "\(3\)" means that height of this ball is \(3\; {\rm ft}\) when \(t = 0\) (right when the ball was thrown.) Thus, the ball was thrown from a height of \(3\; {\rm ft}\).

The quotient of the division operation is \(\frac{5}{9}\)

From the question, we are to find the quotient of the division operation

The given division operation is

\(\frac{2}{3} \div \frac{6}{5}\)

1. The divided is \(\frac{2}{3}\)

2. The divisor is \(\frac{6}{5}\)

3. The reciprocal of the divisor is \(\frac{5}{6}\)

4. The equivalent multiplication of the division problem is

\(\frac{2}{3} \times \frac{5}{6}\)

5. The multiplication gives

\(\frac{2}{3} \times \frac{5}{6}=\frac{10}{18}\)

6. Simplifying the quotient, we get

\(\frac{10}{18}=\frac{5}{9}\)

Hence, the quotient of the division operation is \(\frac{5}{9}\)

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Not gonna give an answer, sorry. Instead, I'll show you a similar example so you can be able to solve it.

An average test score is the sum of all the scores on an assessment divided by the number of test-takers.

For example, if three students took a test and received scores of 69, 87, and 92.

These numbers would be added together and then divided by three to get an average of 82.6.

I hope you know what to do now.

Answer:

Step-by-step explanation:

(82 + 95 + 90 + 87 + x) / 5 = 95          Add  like terms on the left

(354 + x) / 5 = 95                                 Multiply by 5

354 + x = 95 * 5

354 + x = 475                                      Subtract 354 from both sides

x = 475 - 354

x = 121

On the first step, you need to add an x which represents the score he needs. You divide by 5 because that's how many scores there and and the 5 gives you an average.

The difference between the observed and expected number of late departures is statistically significant, we need to perform a binomial test by calculating the probability of observing 16 or more late departures out of 300 flights assuming the null hypothesis is true. If the resulting p-value is less than 0.05, we can conclude that the difference is statistically significant.

Based on the given information, an airline with a 95% on-time departure rate has 16 out of 300 flights with late departures. The question asks whether the difference between what occurred (16 late departures) and what you would expect by chance is statistically significant.
To determine if the difference is statistically significant, we need to conduct a hypothesis test. In this case, we can use a binomial test since we are dealing with two possible outcomes: on-time departure or late departure.
The null hypothesis (H0) assumes that the observed number of late departures is equal to what would be expected by chance. The alternative hypothesis (Ha) assumes that there is a significant difference between the observed and expected values.
In this case, the expected number of late departures can be calculated by multiplying the total number of flights (300) by the expected on-time departure rate (95%). This gives us an expected value of 300 * 0.05 = 15.
To perform the binomial test, we can calculate the probability of observing 16 or more late departures out of 300 flights, assuming the null hypothesis is true. This probability can be calculated using the binomial probability formula or by using statistical software.
If the resulting probability (also known as the p-value) is less than the significance level (usually 0.05), we can reject the null hypothesis and conclude that the difference between what occurred and what would be expected by chance is statistically significant. Otherwise, if the p-value is greater than 0.05, we fail to reject the null hypothesis and conclude that the difference is not statistically significant.
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Answer:

5. m<A = 25.3°; m<B = 64.7°

6. m<A = 40.2°; m<B = 49.8°

Step-by-step explanation:

Recall: SOHCAHTOA

5. Reference angle = <A

Opposite = 9

Adjacent = 19

Apply TOA:

Tan A = Opp/Adj

Tan A = 9/19

A = Tan^{-1}(9/19)

A = 25.3461759° ≈ 25.3° (nearest tenth)

Reference angle = <B

Opposite = 19

Adjacent = 9

Apply TOA:

Tan B = Opp/Adj

Tan B = 19/9

B = Tan^{-1}(19/9)

B = 64.6538241° ≈ 64.7° (nearest tenth)

6. Reference angle = A

Opposite = 20

Hypotenuse = 31

Apply SOH:

Sin A = Opp/Hyp

Sin A = 20/31

A = sin^{-1}(20/31)

A = 40.2° (nearest tenth)

Reference angle = B

Adjacent = 20

Hypotenuse = 31

Apply CAH:

Cos B = Adj/Hyp

Cos B = 20/31

B = cos^{-1}(20/31)

B = 49.8° (nearest tenth)

Answer:

Step-by-step explanation:

Consider X to be the matrix whose columns are the values for our 50 examples. The normal equation gives us the values of \(\theta\) in the following way

\( \theta = (X^{T}X)^{-1}X^{T}y\)

The matrix \(X^{T}X\) however, might not be invertible when \(m\leq n\). So we must use the pseudo inverse to solve the problem. For a big number of features, calculating the pseudoinverse might be computational expensive. So, gradient descent should be prefered.

Answer:

Step-by-step explanation:

(4-14)÷(2-12)=-10÷-10

                  = 1

Answer:correct answers are 3.96

2.32

Step-by-step explanation:We can solve this quadratic equation in cos(θ) by using the substitution u = cos(θ):

-7u^2 + 4u + 6 = 0

Now we can use the quadratic formula to solve for u:

u = (-b ± sqrt(b^2 - 4ac)) / 2a

where a = -7, b = 4, and c = 6. Substituting these values, we get:

u = (-4 ± sqrt(4^2 - 4(-7)(6))) / 2(-7)

u = (-4 ± sqrt(136)) / (-14)

u = (2 ± sqrt(34)) / 7

Therefore, either:

cos(θ) = (2 + sqrt(34)) / 7

or:

cos(θ) = (2 - sqrt(34)) / 7

Since 0 ≤ θ < 2π, we can find the two solutions in the interval [0, 2π) by using the inverse cosine function:

θ = arccos((2 + sqrt(34)) / 7)

θ = arccos((2 - sqrt(34)) / 7)

Using a calculator, we find:

Answer:

 2 • (3x - 14) • (x + 5)

Step-by-step explanation:

  2x + 10  =   2 • (x + 5)

Answer: \(a+b+\sqrt{a^{2}+b^{2}}\)

Step-by-step explanation:

The distance from (0,b) to (0,0) is b.

The distance from (0,a) to (0,0) is a.

Using the Pythagorean theorem, the distance from (0,b) to (a,0) is \(\sqrt{a^{2}+b^{2}}\)

So, the perimeter is \(\boxed{a+b+\sqrt{a^{2}+b^{2}}}\)

Let's create an equation to find the # of weeks until Chad learns 937 pieces.

x = # of weeks

937 = 2x + 805

Subtract 805 from both sides.

132 = 2x

Divide both sides by 2

66 = x

Chad will need 66 weeks of lessons to learn 937 pieces.

This is a transformation of the parent square root function, and it can be written as:

f(x) = √(-x + 4) - 2

It is ratter easy to identify the shape of the general square root function:

f(x) = √x

The only difference is that now it opens to the left, and it starts at the point (4, -2)

Then:

The sign of the x must be negative.

And with the known vertex we can write the equation:

f(x) = √(-x + 4) - 2

That is the graphed function.

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There is a formula for the general term of an arithmetic sequence, and is given by

a_n = a_1 + (n - 1) x d

The question gives us the following information:

a_1 = 1

d = 10

Just plugging the information into the formula, you get the general term like this

a_n = 1 + (n - 1) x 10

a_n = 10n - 9

Now that we have the general term, we just substitute n = 20 to get our 20th coefficient.

a_20 = 10 x 20 - 9 = 191

Then you get both answers!

The general term is

a_n = 10n - 9

and the a_20 is

a_20 = 191

Answer:

y=3

Step-by-step explanation:

Answer:

y= 3

Step-by-step explanation:

4(y - 8) = -20

or, 4y - 32 = -20

or, 4y = -20 + 32

or, 4y = 12

or, y = 12 ÷ 4

Therefore, y = 3

Answer:

\( \boxed{\sf f(2a - 3) = 12a - 20} \)

Step-by-step explanation:

Function given:

⇒f(x) = 6x - 2

Substitute 2a - 3 into the function in place of x:

⇒f(2a - 3) = 6(2a - 3) - 2

Expand bracket:

⇒f(2a - 3) = 12a - 18 - 2

Add the like terms:

⇒f(2a - 3) = 12a - 20

The area of the rectangular basement carpeting carvers'  family need is :Area = 56  sq. ft.

An object with a rectangle's four sides, four corners, and four right angles is a 2D shape. In a rectangle, the opposite sides are equal in length, with one pair substantially longer compared to the opposite pair.

An equiangular quadrilateral is another name for a rectangle. The reason for this is that a rectangle is now a quadrilateral form (4-sided shape) with parallel sides that are equal to one another and four corners with 90o angles.

A rectangle can also be referred to as an equiangular quadrilateral because all of the angles are 90 degrees.

The given dimensions of the rectangular carvers' basement:

length 8 ft and width 7 ft.

Area =  length x width

Area =   8 ft x 7 ft.

Area = 56  sq. ft.

Thus, the area of the rectangular basement carpeting carvers'  family need is :Area = 56  sq. ft.

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The complete questions:

The Carvers' basement has the dimensions shown below.

The family plans to have wall-to-wall carpeting installed.

Dimension: length 8 ft and width 7 ft.

How many square feet of carpeting will the family need?

Show your work.

22 ft²

56 ft²

48 ft²

10 ft²

Answer:

This is the website for the answer it's the fourth question.

https://mathsheetz.weebly.com/uploads/1/0/9/1/109181607/03-07-18_key_notes___hw_geometric_sequences.pdf

Step-by-step explanation:

Hope this helped! :)