Find the intervals on which fis increasing and the intervals on which it is decreasing. fox)=-2 cos(x)-x on 10,2x) HW Score: 75.64%, 9.83 of 13 points Points: 0 of 1 Select the corect choice below and, if necessary, fit in the answer box(es) to complete your choice. OA The function is increasing on the open interval(s) The function is never decreasing (Simplify your answers. Use a comma to separate answers as needed. Type your answers in interval notation Type an exact answer, using a as needed. Use integers or tractions for any numbers in the expression) OB The function is decreasing on the open interval(s). The function is never increasing (Simplify your answer. Use a comma to separate answers as needed. Type your answers in interval notation Type an exact answer, using s as needed. Use integers or tractions for any numbers in the expression) OC The Nunction is increasing on the open interval(s) and decreasing on the open interval(s) (Simplify your answers. Use a comma to separate answers as needed. Type your answers in interval notation Type an exact answer, using x as needed. Use integers or tractions for any numbers in the expression) OD. The function is never increasing or decreasing CND

The grounded ends of the guy wires are 15 meters apart.

Using the Pythagorean theorem, we can calculate the length of the base (distance between the grounded ends of the guy wires).

Let's denote the length of the base as 'x.'

According to the problem, the height of the tower is 20 meters, and the length of each guy wire is 25 meters. Thus, we have a right triangle where the vertical leg is 20 meters and the hypotenuse is 25 meters.

Applying the Pythagorean theorem:

x² + 20² = 25²

x² + 400 = 625

x² = 225

x = √225

x = 15

Therefore, the grounded ends of the guy wires are 15 meters apart.

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Reducing

30-30*0.3=

21

21+21*0.05=22.05

The graphic at the end shows the graph of the absolute value function.

How is the function graphed?

The following is the function:

y=−2³√x−1+2

To graph this, we must first identify some points on the line, which requires evaluating the line in a variety of x values.

Replace the value 2 of x in f(x)=-8x-1+2

x is replaced with 2 f(2)=-8+2 f(2)=-6.

Evaluation in x = 3 results in:

y = -8√(3)-1+2

The vertex points (1,2), (2,-6), and (3,-9.31) can be used to graph the square root.

Once you have accumulated enough data points, you may plot them using absolute value functions to create the graph you see below in this case.

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Answer:

(-2,-6) is your answer..

hope this helped you

please mark as the brainliest (ㆁωㆁ)

The probability of randomly selecting a freshman from the class is approximately 0.5455 or 54.55%.

To calculate the probability of randomly selecting a freshman from the class, we need to determine the total number of freshmen in the class and divide it by the total number of students in the class.

Given information:

Freshman males: 9

Freshman females: 15

Total number of freshmen: 9 + 15 = 24

To find the probability of selecting a freshman, we divide the number of freshmen by the total number of students:

Total number of students:

Freshman males: 9

Freshman females: 15

Sophomore males: 8

Sophomore females: 12

Total number of students = 9 + 15 + 8 + 12 = 44

Probability of selecting a freshman = Number of freshmen / Total number of students

Probability of selecting a freshman = 24 / 44

Simplifying the fraction:

Probability of selecting a freshman ≈ 0.5455

Therefore, the probability of randomly selecting a freshman from the class is approximately 0.5455 or 54.55%.

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Answer:

since traingleABC~ADE

AB/BD=BC/DE

9/15=3/X

9X=15×3

X=15×3/9=5

The value of x is 5 units.

We need to solve for x, from the given figure.

Two triangles are similar if their corresponding angles are congruent and corresponding sides are proportional.

Now, in ΔABC and ΔADE

∠B=∠D=90°

∠EAD=∠CAB (common angles)

So, from AA similarity ABC~ADE

Then, AB/AD=BC/DE

9/15=3/x

9X=15×3

X=15×3/9=5 units

Therefore, the value of x is 5 units.

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The solution to the equation 3e^(2x) + 5 = 27 is x = 1.36.

To solve the equation 3e^(2x) + 5 = 27 using natural logarithms, we can follow these steps:

Step 1: Subtract 5 from both sides of the equation:
3e^(2x) = 22

Step 2: Divide both sides of the equation by 3:
e^(2x) = 22/3

Step 3: Take the natural logarithm (ln) of both sides of the equation:
ln(e^(2x)) = ln(22/3)

Step 4: Apply the property of logarithms that states ln(e^a) = a:
2x = ln(22/3)

Step 5: Divide both sides of the equation by 2:
x = ln(22/3)/2

Using a calculator, we can evaluate ln(22/3) to be approximately 2.72.

Therefore, x = 2.72/2 = 1.36.

So, the solution to the equation 3e^(2x) + 5 = 27 is x = 1.36.

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The correct answer is a countable variable is characterized by infinitely uncountable values and can take any value within interval.

A random variable is with an unknown value or a function that gives values to each of the results of an experiment.

Random variables are frequently identified by letters and fall into one of two categories: continuous variables, which can take on any value within a continuous range, or discrete variables, which have specified values.

Continuous random variables have an endless number of possible values and can represent any value that falls within a given range or interval.

An experiment that measures the amount of rain that falls in a city over the course of a year or the average height of a random group of 25 people are two examples of continuous random variables.

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Using the Gauss-Seidel method with 3 iterations and an initial guess of X₁ = X₂ = X₃ = 1.000, the solution is -8X₁ + X₂ - 2X₃ = -20, -2X₁ - 6X₂X₃ = -38, and -3X₁ - X₂ + 7X₃ = -34 is X₁ ≈ -2.000, X₂ ≈ 4.000, and X₃ ≈ -2.571.

To solve the set of equations using the Gauss-Seidel method, we begin with an initial guess of X₁ = X₂ = X₃ = 1.000. Then, we perform three iterations to refine the solution.

In each iteration, we update the values of X₁, X₂, and X₃ based on the given equations. After the first iteration, we obtain X₁₁, X₂₁, and X₃₁. In the second iteration, we update X₁ to X₁₂, X₂ to X₂₂, and X₃ to X₃₂. Finally, in the third iteration, we calculate X₁₃, X₂₃, and X₃₃.

After three iterations, we find that X₁ ≈ -2.000, X₂ ≈ 4.000, and X₃ ≈ -2.571. These values represent the approximate solution to the given set of equations using the Gauss-Seidel method.

To calculate the percentage approximate error for each iteration, we compare the new values with the previous ones. By using the formula: error = |(new value - previous value) / new value| * 100, we can calculate the percentage error for each x at each iteration.

Therefore, by comparing the values obtained at each iteration with the previous ones, we can compute the percentage approximate error for X₁, X₂, and X₃.

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Answer:

Step-by-step explanation:

(-3,0)

(0,2)

(6,6)

Answner:

negative

Step-by-step explanation:

I hope it can help.

Answer:

negative

Step-by-step explanation:

numbers with same sign, multiplied or divided, equal a positive number

numbers with different signs, multiplied or divided, equal a negative number

Answer:

C - Sarah reads 4 pages in the morning and 6 pages at night for two days.

Step-by-step explanation:

(4+6)*2

(10) - C is the only one where they (do) something that equals 10, and does it twice.

A - (6+2)*4

B - 4 + (6*2)

D - (4 + 6) + 2

Answer:

A hexagon

Step-by-step explanation:

A hexagon - - - the allen wrench has 2 hexagonal heads. See attached pic.

The geometric shape that forms the hole that fits an allen wrench is a hexagon, which is a six-sided polygon with straight sides and angles.

The geometric shape hexagon-shaped hole in an allen wrench, also known as a hex key, is designed to fit tightly over the hexagonal socket of a screw or bolt head. A hexagon is a six-sided polygon, meaning it has six straight sides and angles. In the case of an allen wrench, the hexagon has internal angles of 120 degrees and opposite sides that are parallel.

The hexagonal shape of the hole in the wrench allows for a tight and secure fit onto the corresponding hexagonal socket of the screw or bolt head. This design ensures that the wrench can apply a significant amount of torque to the fastener without slipping, which is essential for many applications in construction, mechanics, and other industries.

The use of a hexagonal shape also allows for greater precision and control when turning the screw or bolt, making it easier to achieve the desired level of tightness. Overall, the hexagon is an ideal shape for the hole in an allen wrench due to its strength, stability, and precision.

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A scale factor of 1 or 100% would make the image the same image. ( option C) is the answer.

To show that the given parabolic velocity profile satisfies the appropriate boundary conditions, we need to verify that it satisfies the continuity and the no-slip conditions.

Continuity Condition: At the boundary y = δ, the velocity profile should be continuous. For y ≤ δ, we have u/U = 2 - (y/δ), and for y > δ, we have u/U = 1. Evaluating the velocity profile at y = δ, we get: u/U = 2 - (δ/δ) = 2 - 1 = 1. Therefore, the velocity profile is continuous at y = δ, satisfying the continuity condition. No-Slip Condition: At the solid surface y = 0, the velocity should be zero. For y ≤ δ, we have u/U = 2 - (y/δ), and when y = 0, we get: u/U = 2 - (0/δ) = 2 - 0 = 0.

Therefore, the velocity profile satisfies the no-slip condition at y = 0. Hence, the parabolic velocity profile u/U = 2 - (y/δ) for y ≤ δ, and u = U for y > δ satisfies the appropriate boundary conditions.

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According to the model, 18% of gross domestic product will go toward health care in the year 2026.

To find the year when 18% of gross domestic product (GDP) will go toward health care according to the given model, we need to solve the equation:

f(x) = 18

where f(x) represents the percentage of GDP going toward health care x years after 2006.

Given the model f(x) = 1.4 ln(x) + 13.8, we can substitute 18 for f(x):

1.4 ln(x) + 13.8 = 18

Subtracting 13.8 from both sides:

1.4 ln(x) = 4.2

Dividing both sides by 1.4:

ln(x) = 3

To solve for x, we can exponentiate both sides using the base e (natural logarithm):

e^(ln(x)) = e^3

x = e^3

Using a calculator, the approximate value of e^3 is 20.0855.

Therefore, according to the model, 18% of GDP will go toward health care in the year 2006 + x = 2006 + 20.0855 ≈ 2026 (rounded to the nearest year).

According to the model, 18% of gross domestic product will go toward health care in the year 2026.

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Complete question is below

The percentage of gross domestic product (GDP) in a state going toward health care from 2007 through 2010, with projections for 2014 and 2019 is modeled by the function f(x) = 1.4 In x + 13.8, where f(x) is the percentage of gross domestic product going toward health care x years after 2006. According to the model, when will 18% of gross domestic product go toward health care?

According to the model, 18% of gross domestic product will go toward health care in the year (Round to the nearest year as needed.)

Answer:

Five groups of five tenths and nine hundredths

Step-by-step explanation:

Mathematically;

2.36 divided by 4 = 0.59

So we want to select from the options, the best representation of this

That will be

0.5 + 0.09

so our answer is 5 groups of five tents and nine hundredths

The model which represents 2.36 ÷ 4 is; Choice D: Five groups of five tenths and nine hundredths

We must perform the division 2.36 ÷ 4 first so that we have;

The result, 0.59 can then be written in words as; Five tenths and 9 Hundredths.

Ultimately, the model. which represents the expression 2.36 ÷ 4 is; Choice D: Five groups of five tenths and nine hundredths.

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The sum of the lengths of two legs of the 30°-60°-90° right triangle is 6.69 centimeters. Using the ratio of sides for the 30°-60°-90° triangle, the sum is calculated.

The ratio for the 30°-60°-90° triangle is 1:√3:2 or x:x√3:2x

where x corresponds to the length opposite the 30° angle and x√3 is opposite of the 60° angle and 2x is opposite to the 90° angle.

It is given that the triangle is a right triangle with angles 30°-60°-90°

For such a triangle, the ratio of side lengths is x: x\(\sqrt{3}\):2x

we have the length of the hypotenuse is \(2\sqrt{6}\)

So, 2x = \(2\sqrt{6}\)

⇒ x = \(\sqrt{6}\)

So,

the other length of the other leg is x√3 = √6 × √3 = 3 √2

Then, the sum of these two legs = √6 + 3√2 = 6.69 centimeters.

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Answer:

18.0 i think

Step-by-step explanation:

To construct E from the given ciphertext xhBBpWdotCf!uJE, we need to use the given numbers as the key to decrypt the message. The numbers represent the positions of the letters in the alphabet, where A=1, B=2, C=3, and so on.

Starting with the first number 24, we look for the 24th letter in the alphabet which is X. Similarly, we decrypt the remaining numbers and get the following letters: h, B, B, p, W, d, o, t, C, f, !, u, J, and E.

Therefore, the decrypted message E can be constructed from the given ciphertext xhBBpWdotCf!uJE.

To do this, follow these steps:

1. Write down the given ciphertext: xhBBpWdotCf!uJE
2. Write down the given series of numbers: 24 2 -16 -4 -20 -6 -21 -8 2 23 29 3 28 10
3. For each character in the ciphertext, find its corresponding ASCII value.
4. Add the corresponding number from the series to the ASCII value of each character.
5. Convert the resulting ASCII values back to characters.
6. Combine the characters to form the plaintext (E).

Following these steps, you'll be able to construct the plaintext E from the given ciphertext and the series of numbers.

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Answer:

x = 11/3 = 3 2/3

y = 13/3 = 4 1/3

Step-by-step explanation:

Here, we want to solve the system of equations simultaneously

x + y = 8

2x -3 = y

From the second equation, we have an equation for y

we can simply proceed to substitute this into the first equation

x + 2x - 3 = 8

3x - 3 = 8

3x = 8 + 3

3x = 11

x = 11/3

Recall;

y = 2x - 3

y = 2(11/3) - 3

y = 22/3 - 3

y = (22-3(3))/3

y = (22-9)/3 = 13/3

Answer: $100

Step-by-step explanation:

3,000 divided by 30 is 100

Answer: 100

Step-by-step explanation: divide 3,000 by 30

Answer:

Circle and Semi-circle are 2D but not polygons.

Picture to shwo answer:

Answer:

That would just equal 256.

Hope this helps

Answer:

256

hope it helps...........

Answer

The right table is the second one  it presents proportional relationship

Step-by-step explanation:

The ordered pairs that represent a proportional relationship are:

X      Y

-1       1

-3       3

-5        5

Option B is the correct answer.

An equation contains one or more terms with variables connected by an equal sign.

Example:

2x + 4y = 9 is an equation.

2x = 8 is an equation.

We have,

From table B.

X      Y

-1       1

-3       3

-5        5

We can make a proportional equation as:

y ∝ x

y = kx

Now,

From the table,

(-1, 1), (-3, 3), and (-5, 5)

It is in the form of (x, y).

So,

y = kx

1 = k (-1)

k = -1

We see that,

y = -1(x)

y = -1 x 3 = -3

y = -1 x 5 = -5

This is true for table B.

Thus,

The ordered pairs that represent a proportional relationship is:

X      Y

-1       1

-3       3

-5        5

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Answer:

well i dont either

Step-by-step explanation: i'm

weird

To solve for x at an angle, you must first understand what type of angle you are working with. If the angle is a right angle, you can use the Pythagorean theorem to solve for x. If the angle is an obtuse angle, you can use the law of cosines to solve for x. If the angle is an acute angle, you can use the law of sines to solve for x.

To solve for x at a right angle using the Pythagorean theorem, you must have the lengths of the two neighboring sides of the triangle. The sum of the squares of the two sides is equal to the square of the hypotenuse, according to the Pythagorean theorem. By rearranging the components and solving for x, this equation may be used to find x.

To use the law of cosines to solve for x at an obtuse angle, you must know the lengths of all three sides of the triangle. According to the law of cosines, the square of one side's length equals the sum of the squares of the other 2 sides minus twice the product of the other 2 sides multiplied by the cosine of the obtuse angle. You can use this equation to solve for x by rearranging the terms and solving for x.

To apply the law of sines to solve for x in an acute angle, you should first know the lengths of the triangle's two sides as well as the acute angle's measurement. According to the law of sines, the ratio of one side's length to the sine of the opposite angle equals the ratio of the other side's length to the sine of the acute angle. By rearranging the terms and solving for x, you may use this equation to solve for x.

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The vertical line that splits the parabola in half is called the "axis of symmetry."

The line of symmetry that divides a parabola in half as "The axis of symmetry of a parabola is a vertical line that divides the parabola into two congruent halves. The axis of symmetry always passes through the vertex of the parabola".

A parabola is an approximately U-shaped, mirror-symmetrical plane curve. It corresponds to a number of seemingly unrelated mathematical descriptions, all of which can be shown to define the same curves. A parabola can be described using a point and a line. Three different parabolas exist. Vertex form, standard form, and intercept form are the three forms. You can access a unique key feature for the graph on each form. A parabola's general equation is written as y = a(x - h)² + k or x = a(y - k)²+ h. Vertex here is indicated by (h, k).

Therefore, The vertical line that splits the parabola in half is called the "axis of symmetry."

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The term that fills in the blank is axis of symmetry.

When graphing a parabola, the vertical line that splits the parabola in half is called the axis of symmetry. The axis of symmetry is a vertical line that passes through the vertex of the parabola. It divides the parabola into two symmetrical halves.

The equation of the axis of symmetry can be found using the formula x = -b/2a, where a and b are coefficients of the quadratic equation in standard form.

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