2•(-x)
x=-0.75
plzzzz help

Answer:

its 34

Step-by-step explanation:

its half of the center angles

The dimension and basis of the vector space V, where V is defined as the set of polynomials in P2 with p(0) = 0 are to be found.

Let p(x) = ax^2 + bx + c be an arbitrary polynomial in V. Since p(0) = 0, we have c = 0. Thus any polynomial in V can be written as p(x) = ax^2 + bx = x(ax + b). Therefore, the set {x(ax + b) : a, b ∈ R} is a basis for V.

To verify that this set is a basis, we need to show that it is linearly independent and spans V. Let p(x) = ax^2 + bx be a polynomial in V such that x(ax + b) = 0 for some real numbers a and b. This implies that either x = 0 or ax + b = 0 for all x in R. Since p(0) = 0, we have b = 0. Thus, the only polynomial in V that is linearly dependent on {x(ax + b) : a, b ∈ R} is the zero polynomial. Therefore, {x(ax + b) : a, b ∈ R} is a basis for V, and dim V = 2.

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The constant of proportionality is the slope of the line.

The slope is the change in y over the change in x

Using two pints on the line:

Slope = (3-0) / (1-0) = 3/1 = 3

The answer is 3

Answer:

Step-by-step explanation:

Where we have "x" must replace for the number shown on table

We have for "x" tha numbers: 0; 1; 2; 3; 4 and 5

Equation:

1.y = x+4

y = x + 4

For x = 0

y = x + 4

y = 0 + 4

y = 4

For x = 1

y = x + 4

y = 1 + 4

y = 5

For x = 2

y = x + 4

y = 2 + 4

y = 6

For x = 3

y = x + 4

y = 3 + 4

y = 7

For x = 4

y = x + 4

y = 4 + 4

y = 8

For x = 5

y = x + 4

y = 5 + 4

y = 9

So:

x     y

0    4

1     5

2    6

3    7

4    8

5    9

I hope help you.

Answer:

(8,-1)

Step-by-step explanation:

The point of intersection can be found out by solving the system of equations.

Multiply (1) by 3 :-

→ 3 ( x + 3y ) = 5 × 3

→ 3x + 9y = 15

Subtracting 3(1) and 2 :-

→ 3x + 9y - 3x +2y = 15 - 26

→ 11y = -11

→ y = (-1)

Put it in 1 :-

→ x -3 = 5

→ x = 3 + 5

→ x = 8

Answer:

Q(0) = -2

Q(1) = 2

Q(-2) = -34

Step-by-step explanation:

Step 1: Define

Q(x) = x³ - 3x² + 6x - 2

Q(0) is x = 0

Q(1) is x = 1

Q(-2) is x = -2

Step 2: Substitute and Evaluate

Q(0) = 0³ - 3(0)² + 6(0) - 2

Q(0) = 0 - 0 + 0 - 2

Q(0) = -2

Q(1) = 1³ - 3(1)² + 6(1) - 2

Q(1) = 1 - 3 + 6 - 2

Q(1) = -2 + 6 - 2

Q(1) = -4 + 6

Q(1) = 2

Q(-2) = (-2)³ - 3(-2)² + 6(-2) - 2

Q(-2) = -8 - 3(4) - 12 - 2

Q(-2) = -8 - 12 - 14

Q(-2) = -20 - 14

Q(-2) = -34

Answer:

143.44 degrees

Step-by-step explanation:

T=36+(190-36)e^(-0.12*3)

The Algorithm for a time complexity of O(n) is given at the end.

The algorithm with a time complexity of O(n) to solve the problem:

1. Initialize two variables: "min_price" to store the minimum price encountered so far and "max_profit" to store the maximum profit found so far. Set both variables to infinity or a very large number.

2. Iterate through the given prices from left to right, for each day i:

  - Update min_price as the minimum between min_price and prices[i].

  - Calculate the potential profit as prices[i] - min_price.

  - Update max_profit as the maximum between max_profit and the potential profit.

3. After the iteration, max_profit will contain the maximum profit that can be obtained by buying on one day and selling on a later day.

4. In this case, return a suitable message indicating that there is no profitable opportunity.

5. If max_profit is positive, it represents the maximum profit that can be obtained. To find the specific days i and j, iterate through the prices again and find the day i where the profit is equal to max_profit. Then, continue iterating from day i+1 to find the day j where the price achieves the maximum profit (prices[j] - prices[i]). Return the pair of days (i, j).

The Python code implementing the algorithm:

def find_optimal_days(prices):

   n = len(prices)

   min_price = float('inf')

   max_profit = 0

   buy_day = 0

   sell_day = 0

   for i in range(n):

       min_price = min(min_price, prices[i])

       potential_profit = prices[i] - min_price

       max_profit = max(max_profit, potential_profit)

       if potential_profit == max_profit:

           sell_day = i

   if max_profit <= 0:

       return "No profitable opportunity."

   for i in range(sell_day):

       if prices[sell_day] - prices[i] == max_profit:

           buy_day = i

           break

   return buy_day, sell_day

# Example usage:

prices = [7, 1, 5, 3, 6, 4]

result = find_optimal_days(prices)

print(result)

This algorithm has a time complexity of O(n), where n is the number of days (length of the prices list). It iterates through the prices list twice, but the overall complexity is linear.

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Answer:

22 sides total

Step-by-step explanation:

a hexagon has 6 sides, while a pentagon has 5 sides. In order to find out how many there are total, we would multiply each by two, and add them together.

\(2(6)+2(5)=\\12+10=22\)

The definition of slope-intercept form y=mx+b is given below.

A line has length but no breadth, making it a one-dimensional figure. A line is made up of a collection of points that may be stretched indefinitely in opposing directions. Two points in a two-dimensional plane determine it. Collinear points are two points that are located on the same line.

In geometry, there are two types of lines: straight and curved. Vertical and horizontal straight lines are further divided into categories. Parallel, intersecting, and perpendicular lines are further types of lines.

In the given question:-

The value of the steepness or the direction of a line in a coordinate plane is referred to as the slope of a line, also known as the gradient. Given the equation of a line or the coordinates of points situated on the straight line, slope may be determined using a variety of approaches.

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Answer:

Step-by-step explanation:

2.6*50=130 km

Answer:

$1.90

Step-by-step explanation:

Divide 5.7 by 3 to get your answer.

\(\frac{5.7}{3}\) = 1.9

Answer:

$1.90

Step-by-step explanation:

First, write out what you know.

So, you know that you have 3 liters.

Together, they cost $5.70.

You want to know the unit price, for 1 liter.

Therefore, you would divide $5.70 by 3:

\(\frac{5.70}{3}=\frac{1.90}{1}=1.90\)

This means that the unit price, for 1 liter of juice, would be $1.90.

We have that the proportion of people that like dark chocolate more than milk chocolate is 29%, with a margin of error of 1.9%. Then we would have:

then, the absolute value inequality that most looks like this is the following:

Since the line passes through the points (3,-2) and (3, 4), the slope of the line is: C. the slope is undefined.

In Mathematics and Geometry, the slope of any straight line can be determined by using the following mathematical equation;

Slope (m) = (Change in y-axis, Δy)/(Change in x-axis, Δx)

Slope (m) = rise/run

Slope (m) = (y₂ - y₁)/(x₂ - x₁)

By substituting the given data points into the formula for the slope of a line, we have the following;

Slope (m) = (4 + 2)/(3 - 3)

Slope (m) = (6)/(0)

Slope (m) = undefined.

Based on the graph, the slope is the change in y-axis with respect to the x-axis and it is undefined.

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The solution to the original equation is approximately 1.4422.

To continue with the bounds found in part d, we need to use the interval [1.4, 1.5] as the initial approximation for the next iteration. Using the Newton-Raphson method, we get the following approximations:

- Iteration 2: x1 = 1.4428
- Iteration 3: x2 = 1.4422

Based on these two iterations, we can conclude that the solution to the original equation is approximately 1.4422. This is because the difference between the approximations in the last two iterations is only 0.0006, which is a small enough difference to suggest that the approximation has converged to a solution.

In other words, the Newton-Raphson method has been successful in finding a solution to the equation f(x) = x^3 - x^2 - x - 1 = 0 within the given interval [1.4, 1.5]. The method works by using the tangent line to the graph of f(x) at each iteration to approximate the root of the equation. By repeating this process, we are able to get closer and closer to the actual solution.  

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Answer:

bro u find it

Step-by-step explanation:

Performing a Chi-Square test is a statistical tool used to determine if there is a significant difference between observed and expected data. The test helps to analyze categorical data by comparing observed frequencies to the expected frequencies. The p-value in a Chi-Square test refers to the probability of obtaining the observed results by chance alone.

If a p-value lower than 0.01 is obtained in a Chi-Square test, it means that the results are statistically significant. In other words, there is strong evidence to reject the null hypothesis, which states that there is no significant difference between the observed and expected data. This means that the observed data is not due to chance alone, but rather to some other factor or factors.

The mean, or average, is not directly related to the Chi-Square test or the p-value. The Chi-Square test is specifically used to determine the significance of the observed data. However, the mean can be used as a measure of central tendency for continuous data, but it is not applicable to categorical data.

In conclusion, obtaining a p-value lower than 0.01 in a Chi-Square test means that there is strong evidence to reject the null hypothesis, and that the observed data is statistically significant.

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The answer is 2.6825  cm, which is not one of the given options. Therefore, the correct answer is E. none of these.

The bulk modulus, B is defined as:

B = (P / ΔV / V), where P is the pressure applied, ΔV is the change in volume, and V is the original volume.

For a cube, the change in volume, ΔV is related to the change in length, ΔL by:

\(\sf \Delta V = \Delta L^3\).

Given that the cube has 2.0 cm sides, the original volume, V is:

\(\sf V = (2.0 \ cm)^3 = 8.0 \ cm^3\).

The pressure applied is \(\sf P = 2.0 \times 10^5\) Pa and the bulk modulus is \(\sf B = 4.7 \times 10^5 \ N/m^2\).

We can rearrange the bulk modulus formula to solve for ΔL as:

\(\sf \Delta L = \huge \text(\dfrac{P}{B} \huge \text) \times \dfrac{V}{3}\).

Substituting the values, we get:

\(\sf \Delta L = (2.0 \times 10^5 \ \dfrac{Pa}{4.7} \times 10^5\ N/m^2) \times \dfrac{8.0 \ cm^3}{3} = 0.6825 \ cm\)

Therefore, the final length of any side of the cube is:

\(\sf L = 2.0 \ cm + \Delta L = 2.0 \ cm + 0.6825 \ cm = 2.6825 \ cm\)

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Complete Question:

A cube with 2.0-cm sides is made of material with a bulk modulus of4.7 × 10^5 N/m2. When it is subjected to a pressure of 2.0 × 10^5 Pa the length of its any of its sides is:

A. 0.85 cm

B. 1.15 cm

C. 1.66 cm

D. 2.0 cm

E. none of these

The mean, or average, is equal to the sum of all the miles divided by the number of terms you added together. We have 4 terms that will be added, but are missing one term. We will solve for the missing term by setting up an equation for the average and solving for x, the number of miles you must run on Thursday.

3 = (2 + 3 + 4 + x) / 4

12 = 2 + 3 + 4 + x

12 = 9 + x

x = 3 miles

The flux of the vector field v(x, y, z) = 3xy2i + 3x2yj + z3k across the unit sphere is 4π.

The flux of the vector field v(x, y, z) = 3xy2i + 3x2yj + z3k out of the unit sphere can be found using the divergence theorem, which states that the flux of a vector field across a closed surface is equal to the volume integral of the divergence of the vector field over the enclosed volume.

The unit sphere can be represented by the surface S given by the equation x2 + y2 + z2 = 1. The outward unit normal to this surface is given by the vector n = xi + yj + zk.

Using the divergence theorem, the flux of the vector field v across the surface S is given by the volume integral of the divergence of v over the enclosed volume V:

Flux = ∬_S v · n dS = ∭_V ∇ · v dV

To evaluate the integral, we first need to find the divergence of v:

∇ · v = ∂(3x\(y^{2}\))/∂x + ∂(3\(x^2\)y)/∂y + ∂(\(z^3\))/∂z

= 3\(y^2\) + 6xy + 3\(z^2\)

Next, we need to find the volume of the unit sphere:

V =∭_V dV = \($\int_{-1}^1\int_{-\sqrt{1-y^2}}^{\sqrt{1-y^2}}\int_{-\sqrt{1-x^2-y^2}}^{\sqrt{1-x^2-y^2}} dz,dx,dy$\)

= 4/3 π

Substituting the divergence and volume into the divergence theorem equation, we get:

Flux = ∬_S v · n dS = ∭_V ∇ · v dV = ∭_V (3\(y^2\) + 6xy + 3\(z^2\)) dV

= 3∭_V (\(y^2\) + 2xy + \(z^2\)) dV

= 3∭_V (\(x^2\) + \(y^2\) + \(z^2\)) dV  (by symmetry)

= 3V

= 4π

Therefore, the flux of the vector field v across the unit sphere is 4π.

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Answer: -30r + 15

Step-by-step explanation:

first, we multiply the parenthesis by 20.

-20 x 1.5r + 20 x 0.75

then, we multiply/calculate.

-30r + 15

Answer: Brainliest? Need One More!

Step-by-step explanation:

20*(-1.5r)

+

20*(0.75)

-30r+15

we have f(20) - f(10) = 15,011 - y, the difference f(20) - f(10) represents the change in the number of stores between 20 and 10 years since 1987.

To find the change in the number of stores between 20 and 10 years since 1987, we need to calculate the difference in the values of the function f at these two time points.

Given that f(20) = 15,011, we don't have the exact value of f(10). However, we can still determine the change by subtracting f(10) from f(20).

Let's denote f(10) as y. Therefore, we have:

f(20) - f(10) = 15,011 - y

The difference f(20) - f(10) represents the change in the number of stores between 20 and 10 years since 1987. The value of this expression will give us the net increase or decrease in the number of stores during that time period.

Unfortunately, since we don't have the specific value of f(10) or any additional information about the function f,

we cannot determine the exact change in the number of stores between 20 and 10 years since 1987. We would need more information or a specific equation for the function f to calculate the precise change.

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Answer:

-3/ (2x√x)

Step-by-step explanation:

y=3/√x

y= 3x^(-½)

y'= -3/2 x^(-3/2)

= -3 / (2x√x)

Considering the equation of selling habitat between Niayla and Hamilton, the number of habitats that Niayla and Hamilton must sell to make an equal amount of money is 15

information gotten from the question include

Hamilton gets paid a flat fee of 350 dollars plus 50 dollars for each habitat he sells

Niayla gets paid a flat fee of 500 dollars 40 dollars for each habitat she sells

The equation as described is a linear function and is represented by the form. y = mx + c

where:

y = total amount made

x = number of habitat sold

m = cost per habitat

c =flat fee

some interpretation on the information from the question include

for Hamilton

y = 50x + 350

for Niayla

y' = 40x + 500

To make equal amounts y = y'

50x + 350 = 40x + 500

500 - 350 = 50x - 40x

150 = 10x

x = 150 / 10

x = 15

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Answer:

If x=1, then f(x)= undefined

Step-by-step explanation:

1*1=1

1-1=0

0/0

You can't divide by 0, so anything that is divided by 0 is undefined.

((1*1)-1)/(1-1)

(1-1)/(1-1)

0/0

0/0=Undefined

f(x)= undefined

Number of ways to form four letters strings formed using a, b, c, d, e with the given conditions is equal to 150ways.

As given in the question,

Given letters are a, b, c, d, e has

Number of vowel = 2

Number of consonant= 3

Number of letter strings to be formed = 4

Condition:

First letter must be vowel

Last letter must be consonant

First place filled in 2 ways

Second and Third place filled in 5ways

Last place filled in 3 ways

Total number of ways to form four letters strings

= 2 × 5 × 5 × 3

= 150

Therefore, number of ways to form four letter string is 150 ways.

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is that a question or no?