Kellen runs for at least 1 hour but for no more than 2 hours. He runs at at an average rate of 6.6 kilometers per hour. The equation that models the distance he runs for t hours is D=6.6t


Find the theoretical and practical ranges of the equation.


Select ALL correct answers.


Question 5 options:


The theoretical range is all real numbers.



The theoretical range is the set of all real numbers from 6.6 to 13.2, inclusive



The practical range is the set of all real numbers from 6.6 to 13.2, inclusive



The practical range is the set of all real numbers

Combining three popular technologies, blockchain: keys for cryptography. a network of peers that uses a shared ledger. a method of computation for storing exchanges and records.

Blockchain technology sets itself apart from conventional networks by offering transparency and integrity.

Integrity: When a user retrieves data from a network, he or she may be sure that the data is accurate and unaffected.

Transparency: Every user on the network may confirm any modifications made to the blockchain technology.

The read, write, create, and update operations to databases are provided by the traditional network, however the blockchain technology only enables users to attach the structure and already stored data cannot be changed.

When a new transaction is created, the blockchain makes sure to record it and perform transaction validation.

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Answer:

The calculation that would increase 275 by 10%:

275 x ( 1 + 10%) = 275 x (1 + 10/100) = 275 x 110/100 = 302.5

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We can factorize abcabc as

abcabc = abc000 + abc

abcabc = abc (1000 + 1)

abcabc = abc × 1001

abcabc = abc × 7 × 11 × 13

so naturally each of 7, 11, and 13 must divide abcabc.

Answer:

21.3 in

Step-by-step explanation:

because yes.

Answer:

its B. 21.3

Step-by-step explanation:

edge2021

The value of y when x is 9 and the constant of proportionality(k) is 4 is 36.

A ratio is a comparison between two similar quantities in simplest form.

Proportions are of two types one is the direct proportion in which if one quantity is increased by a constant k the other quantity will also be increased by the same constant k and vice versa.

In the case of inverse proportion if one quantity is increased by a constant k the quantity will decrease by the same constant k and vice versa.

Given, x and y vary directly and y is 44 when x is 11.

Let, y ∝ x.

y = kx.

44 = 11k.

k = 44/11.

k = 4.

Now x = 9.

y = 4×9.

y = 36.

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The graph of a proportional relationship is a line through the origin or a ray whose endpoint is the origin

3. No because it's a line that doesn't go through the origin

4. Yes because it's a line through the origin

5. Yes because 1/3 = 2/6 = 3/9 = 4/12

6. No because 4/2 isn't equal to 8/5

7. Draw a graph just like 4., but change the y-axis

8. a. Let the equation be y = ax. 27 = 3a. a = 9. Therefore the equation is y = 9x.

8. b. 9

8. c. 9 * 5 = 45

9. a. The car travels 25 (> 18) miles per gallon of gasoline.

9. b. 25 * 8 - 18 * 8 = 7 * 8 = 56

Answer:

2/9

Step-by-step explanation:

32/144, divide each side by two until you cant

Answer:

67.02

Step-by-step explanation:

\(\\ \tt\Rrightarrow 15^2\times 3^2\div \sqrt[3]{125}+9^3\)

\(\\ \tt\Rrightarrow 3^25^2\times 3^2\div 5^1+3^33^3\)

\(\\ \tt\Rrightarrow 3^45^1\div 3^6\)

\(\\ \tt\Rrightarrow 3^{-2}5\)

\(\\ \tt\Rrightarrow \dfrac{1}{3^2}5\)

\(\\ \tt\Rrightarrow \dfrac{5}{9}\)

Answer: c≈44°

Step-by-step explanation:

cos(c)=0,7193

c=arccos(0.7193)

c≈44°

Answer:

$1875

Step-by-step explanation:

Money available with Dubois family = $5000

Money to be spent on gasoline and motel room = \(\frac{1}{4}\) of the total amount

Therefore,

Money to be spent on gasoline and motel room = \(\frac{1}{4} \times 5000 = \$1250\)

Remaining amount of money = Total amount - Money spent on gasoline and motel room  

Remaining amount of money = $5000 - $1250 = $3750

As per question statement:

Half of the remaining money is to be spent on meals.

i.e. Money to be spent on meals = \(\frac{1}{2}\times \$3750 = \bold{\$1875}\)

Therefore, the answer is:

$1875

\(x \geqslant 1\)

Answer:

D. He answers the same number of questions correctly in both rounds and the same number of questions incorrectly in both rounds​.

Step-by-step explanation:

In the first equation he earns 5 points and loses 3 points. The value of one question is 5 points, and the value of losing one question is 3 points. The same goes for the second equation except the fact that its 10 points and 4 points lost instead.

Therefore, the length of each side of the hexagon is 5√2. Hence, the area of the regular hexagon is 150 square units.

Area is a mathematical term that refers to the size of a two-dimensional surface or region. It is typically measured in square units, such as square meters, square feet, or square inches, depending on the system of measurement used. The area of a shape is determined by multiplying its length and width, or by using a specific formula depending on the shape of the object. Knowing the area of an object can be useful in many fields, including architecture, engineering, and mathematics.

Here,

To find the area of the regular hexagon, we need to know the length of its sides. Since the hexagon is regular, all of its sides are congruent. We can find the length of the sides by using the distance formula between two adjacent vertices. Let's find the distance between vertices A and B, which are adjacent vertices of the hexagon:

AB = √[(x₂ - x₁)² + (y₂ - y₁)²]

= √[(7 - 0)² + (1 - 0)²]

= √(49 + 1)

= √50

= 5√2

To find the area of the hexagon, we can divide it into six equilateral triangles. Each of these triangles has a base of 5√2 and a height of (5√2)/2. The area of one triangle is:

A = (1/2)bh

= (1/2)(5√2)((5√2)/2)

= 25

Therefore, the area of the regular hexagon is:

A = 6A(triangle)

= 6(25)

= 150

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The matrix is a not invertible when it's column do not span because it is not linearly independent.

According to the statement

we have find that the matrix can be a invertible or not when its column is spaned.

So, For this purpose, we know that the

Matrix, a set of numbers arranged in rows and columns so as to form a rectangular array. The numbers are called the elements, or entries, of the matrix.

And according to the statement it is not possible for thr matrix to be invertible.

Because for matrix it is not a possible because it is not independent,

In other words, No, if the columns don't span R5 -> NOT linearly independent -> not invertible.

So, The matrix is a not invertible when it's column do not span because it is not linearly independent.

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Answer:

7 busses

Step-by-step explanation:

The satellite makes 8 revolutions around the earth, it passes 177272 kilometers.

The orbital velocity of the satellite exists independent of its mass. The radius of the orbit exists as the only variable. If the satellite orbits near the planet at such a low height, its orbital speed must be extremely fast. If the orbital speed exists less than the required value, the satellite will be drawn to the earth's surface by gravity.

The satellite rotates around the earth to form a circle,

diameter of circle = Diameter of earth + 2(Height)

d = 6714 + 2(343)

d = 6714+ 686

d = 7057

Perimeter = πd

Perimeter = 3.14 (7057)

Perimeter = 22158.98

Total Revolution exists 8

Therefore, 8πd = 8(22158.98)

= 177272 kilometers.

Therefore, the satellite makes 8 revolutions around the earth, it passes 177272 kilometers.

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The values for numbers #21 through #26 are as follows:

#21: 2.33% or 0.0233. #22: $56.4842. #23: 1.85% or 0.0185. #24: $56.4148. #25: 3.64% or 0.0364. #26: $57.4397

#21: 2.33% (arithmetic mean as a fraction: 0.0233)

#22: $56.4842 (result of the calculation)

#23: 1.85% (geometric mean as a fraction: 0.0185)

#24: $56.4148 (result of the calculation)

#25: 3.64% (continuous mean as a fraction: 0.0364)

#26: $57.4397 (result of the calculation)

To fill out numbers #21 through #26, we need to calculate the values for each term using the given information and convert the percentages to fractions.

#21: The arithmetic mean is given as a percentage. Convert it to a fraction by dividing by 100. Therefore, #21 = 2.33% = 0.0233.

#22: Multiply the starting price ($53.07) by the compound factor (1 + arithmetic mean)^3. Substitute the value of #21 into the calculation. Therefore, #22 = $53.07 x (1 + 0.0233)^3 = $56.4842.

#23: The geometric mean is given as a percentage. Convert it to a fraction by dividing by 100. Therefore, #23 = 1.85% = 0.0185.

#24: Multiply the starting price ($53.07) by the compound factor (1 + geometric mean)^3. Substitute the value of #23 into the calculation. Therefore, #24 = $53.07 x (1 + 0.0185)^3 = $56.4148.

#25: The continuous mean is given as a percentage. Convert it to a fraction by dividing by 100. Therefore, #25 = 3.64% = 0.0364.

#26: Multiply the starting price ($53.07) by the continuous factor e^(continuous mean x 3). Substitute the value of #25 into the calculation. Therefore, #26 = $53.07 x e^(0.0364 x 3) = $57.4397.

Hence, the values for numbers #21 through #26 are as calculated above.

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Answer:

A) ±\(6\sqrt{2}\)

Step-by-step explanation:

Answer:

x < -8

Step-by-step explanation:

1. Subtract 5 from both sides

-4x + 5 > 37

-4x + 5 - 5 > 37 - 5

2. Simplify

Subtract the numbers:

-4x + 5 - 5 > 37 - 5

-4x > 37 - 5

Subtract the numbers:

-4x > 37 - 5

-4x > 32

3. Divide both sides by the same factor, and flip the relation because the factor is negative

-4x > 32

\(\frac{-4x}{-4}\) < \(\frac{32}{-4}\)

4. Simplify

Cancel terms that are in both the numerator and denominator:

\(\frac{-4x}{-4}\) < \(\frac{32}{-4}\)

x < \(\frac{32}{-4}\)

Divide the numbers:

x < \(\frac{32}{-4}\)

x < -8

Solution:

x < -8

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Answer:

x < - 8

Step-by-step explanation:

-4x + 5 > 37

-4x > 37 - 5

-4x > 32  ( now I have to divide by -4 )

-4x > 32 / -4

x < - 8

x has to be smaller than -8 for example ( -9 or - 10 )

demonstration: -4 * (-9) + 5 > 37

36 + 5 > 37

41 > 37

Answer:

(50/12) + (2x) = L

Step-by-step explanation:

Let's assume the length of the wall is represented by "L" feet. Since we're given that the distance between the pictures and the distances from each picture to the end of the wall are the same, we can represent that distance as "x" feet.

To form the equation, we can consider the total length of the wall and the space occupied by the two pictures and the gaps between them.

The total length of the wall is "L" feet, and each picture is 25 inches across, which is equivalent to (25/12) feet. So, the combined width of the two pictures is (2 * 25/12) feet.

We have two gaps, one between the first picture and the end of the wall, and another between the second picture and the other end of the wall. Each gap has a length of "x" feet.

To set up the equation, we can add up the widths of the pictures and the gaps, and it should equal the total length of the wall:

(2 * 25/12) + (2 * x) = L

Step-by-step explanation:

The answer is (50/12)+(2x)=L

The difference of two positive integers is sometimes positive.

For example the difference of 3 and 5 will give a value of -2. This is negative.

On the other hand, the difference of 10 and 6 is 4. Therefore, this is positive.

Therefore, the difference of two positive integers is sometimes positive. It can also be negative.

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a. To test whether the population mean daily number of texts for one age group differs from the population mean daily number of texts for another age group, we should use the following alternative hypothesis:
H1: μ1 ≠ μ2

b. To compute the p-value, we need to perform the following steps:
1. State the null hypothesis: H0: μ1 = μ2
2. Calculate the test statistic:
  t = (sample mean - hypothesized mean difference) / (population standard deviation / √n)
  Assuming the hypothesized mean difference is 0, and plugging in the given values:
  t = (sample mean - 0) / (population standard deviation / √30)
3. Find the p-value using a t-distribution table or calculator, and round to four decimal places.
c. If the p-value is less than the level of significance (α), we reject the null hypothesis and conclude that there is a significant difference in the population mean daily texts between the two age groups.

If the p-value is greater than or equal to α, we do not reject the null hypothesis and cannot conclude that there is a significant difference.
d. For the critical value approach, we compare the test statistic (t) with the critical value (±1.96).

If the test statistic falls in the rejection region (outside of ±1.96), we reject the null hypothesis and conclude that the population mean differs.

If the test statistic falls within the acceptance region (inside ±1.96), we do not reject the null hypothesis and cannot conclude that the population mean differs.

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Answer:

The correct graph is graph B.

Answer:

279936

Step-by-step explanation:

Answer:

Domain = 6

Range = 17?

Step-by-step explanation:

Answer:

-24 po

Step-by-step explanation:

thanks for the points

It is important to carefully choose the entries to pivot on to ensure that each pivot is in a different row.

(a) if we make the third pivot on entry (3, 3) instead of on entry (3, 2), then we will end up with a row of zeros in the third row after performing the row operations. This will make it impossible to read off the solution, as we will have an equation such as 0x + 0y + 0z = a number, which has no unique solution. Therefore, making the third pivot on entry (3, 3) will not provide a valid solution.

(b) if we make the sequence of pivots on entry (3, 1), entry (2, 2), then entry (2, 3), then we will again end up with a row of zeros in the third row after performing the row operations. This is because entry (2, 3) is already zero before we perform the third pivot. This system of equations will also have no unique solution, and thus this sequence of pivots will not provide a valid solution.

These examples illustrate why each pivot in elimination by pivoting must be in a different row. If we attempt to pivot on an entry in a row that has already been pivoted on, we will end up with a row of zeros and no unique solution. Therefore, it is important to carefully choose the entries to pivot on to ensure that each pivot is in a different row.

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Answer: The second one

Step-by-step explanation: Because I said so nons

Answer:3

Step-by-step explanation: 3 +5 = 8 12 x 8 = 96, 32 x 3 = 96, 96 = 96