please answer this question with full explanation​

Answer:

Yes

3

Step-by-step explanation:

a direct variation is written in the form

y = kx

k is a constant which is usually non zero.

6y = k18x

k = 3

An increase in x would lead to an increase in y

Answer:

Negative

Step-by-step explanation:

Answer:

Negative

Step-by-step explanation:

A positive divided by a negative is a negative.

Answer:

d) 2x^2 + 2x -59

Step-by-step explanation:

(x-8)(x+4) + (x-3)(x+9) *multiply each term (...)(...)*

x^2 - 4x - 32 + x^2 + 6x -27 *combine like terms*

2x^2 +2x - 59

I hope someone seriously helps him :(

Step-by-step explanation:

sorry I couldn't help ya

Answer:

I think it would be 55+8x. I hope this helps. :)

Step-by-step explanation:

55 gallons of water

8 gallons per minute

It would be 55 gallons (the original amount in the tank) plus 8 gallons per minute. (8x)

x = how many minutes the tank is being filled up more.

so if you were to fill up the tank another 5 minutes, the equation would be 55+8(5)

55+40

95 would be the answer.

The surface area of the cone is 40π

A cone is a solid shape with a circular base and a tapered side.

Analysis:

surface area of a cone = πrl + π\(r^{2}\) = π( 6x4) + π(4 x 4) = 40π

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The maximum profit if the profits per acre are $75 for corn and $40 for soybeans is $371,255.83. Therefore, the correct option is c.

To find the maximum profit from planting corn and soybeans, we can use linear programming. Let's first define the variables and write the constraints.

Let x be the number of acres of corn and y be the number of acres of soybeans.

1. Total acre constraint: x + y ≤ 6,000

2. Fertilizer/herbicide constraint: 9x + 3y ≤ 40,501

3. Labor constraint: 0.75x + y ≤ 5,250

The objective function to maximize is the profit function: P(x,y) = 75x + 40y

Now, we will use the Solver to find the maximum profit:

Step 1: Set up a spreadsheet with the constraints and the objective function.

Step 2: Go to the Data tab and click on Solver. If Solver is not available, you may need to add it in Excel Options.

Step 3: Set the objective function by selecting the cell with the profit function.

Step 4: Choose "Max" for the objective.

Step 5: Add the constraints by selecting the corresponding cells.

Step 6: Click on "Solve" and the Solver will find the optimal values for x and y.

After using Solver, we find that the optimal values are x = 4,363.89 (corn) and y = 1,636.11 (soybeans), which yields a maximum profit of $371,255.83. Therefore, the correct answer is c: $371,255.83

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The semi-strong form of the Efficient Markets Hypothesis (EMH) asserts that all publicly available information is rapidly and accurately reflected in a stock's current price.

This implies that new information that enters the market is quickly incorporated into the stock price, making it difficult for traders to earn excess returns by analyzing publicly available information.

If prices are already reflecting all available information, then the only way for prices to move in the future is through new and unpredictable information entering the market. Thus, the semi-strong form of the EMH implies that stock prices should follow a random walk.

A random walk is a mathematical model that describes the movement of a variable (in this case, the stock price) that is determined by a sequence of random events. In the context of stock prices, a random walk implies that the future price changes are not predictable, and that they are not dependent on past prices or any other historical data.

The "drift" in a random walk with drift means that the expected value of the random walk is not zero, but rather changes at a constant rate over time. In the case of stock prices, the drift component reflects the fact that stock prices tend to increase over time due to factors such as economic growth, inflation, and increased profitability of companies.

Therefore, the semi-strong form of the EMH implies that stock prices should follow a random walk with drift, as the prices should be constantly adapting to new information and changing in response to underlying economic factors.

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The simplified and rationalized expression is: (4√3)/x.

To simplify the expression and rationalize the denominator, we need to rewrite the expression with a rational denominator.

First, let's simplify the expression: √3 4/0.5x.

To simplify the square root term, we can write it as: √(3 * 4)/(0.5x).

Simplifying the numerator: √12/(0.5x).

Next, let's rationalize the denominator by multiplying both the numerator and the denominator by 2:

(√12 * 2)/((0.5x) * 2).

Simplifying further: (2√12)/(1x).

Finally, simplifying the square root term: (2√(4 * 3))/x.

Simplifying the square root: (2 * 2√3)/x.

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The solution to the systems of equations graphically is (2, 4)

From the question, we have the following parameters that can be used in our computation:

y = 2x

y = -x + 6

Next, we plot the graph of the system of the equations

See attachment for the graph

From the graph, we have solution to the system to be the point of intersection of the lines

This points are located at (2, 4)

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The area of the enclosed region is 83.4 square units.

To calculate the integral, first determine the limits, which will be the points where both curves meet.

The area will be integrated with respect to y.

In respect to y:

\(2x + y^{2}\) = 24

\(2x\) = 24 - \(y^{2}\)

\(x\) = 12 - \(\frac{y^{2} }{2}\)

Finding limits:

y = 12 - \(\frac{y^{2} }{2}\)

12 - \(\frac{y^{2} }{2}\) - y = 0

Multiply by 2 to facilitate calculations:

24 - \(y^{2}\) - 2y = 0

Resolving quadratic equation:

- \(y^{2}\) -2y + 24 = 0

- (\(y^{2}\) + 2y - 24 ) = 0

Divide both sides the same factor,

\(y^{2}\) + 2y - 24  = 0

Use Quadratic formula,

y = (-b ± \(\sqrt (b^{2} -4ac)\) ) / 2a

y = (-2 ± \(\sqrt{2^{2}-4*1*(-24) }\) ) / 2*1

y = (-2 ± \(\sqrt{4+96}\) ) / 2

y = (-2 ± \(\sqrt{100}\) ) / 2

y = (-2 ± 10 ) / 2

y = (-2 + 10 ) /2  ,     y = (-2 - 10 ) /2  

y = 8/2  ,                  y = -12/2

y = 4   ,                     y = -6

y = 4 and y = -6

Then, integral to calculate area will be with limits -6<y<4:

A = \(\int\limits^\) 12 - \(\frac{y^{2} }{2}\) - y dy

A = 12y - \(\frac{y^{3} }{6}\) - \(\frac{y^{2} }{2}\)

A = 12*4 - \(\frac{4^{3} }{6}\) - \(\frac{4^{2} }{2}\) - [12(-6) - \(\frac{-6^{3} }{6}\) - \(\frac{-6^{2} }{2}\) ]

A = 48 - 10.6 - 8 - [ -72 + 36 - 18 ]

A = 48 - 10.6 - 8 + 72 - 36 + 18

A = 83.4

Therefore,

The area of the enclosed region is 83.4 square units.

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Answer:

adult-135

kid-27

Step-by-step explanation:

13.50*10=135

4.50*6=27

Answer:

54

Step-by-step explanation:

We'll call the number "ab".

From left to right, the value of this number will be \(10a+b\).

From right to left, the value of this number will ve \(10b+a\).

From the question,

\(10a+b=1.2(a+10b)\\10a+b=1.2a+12b\\8.8a=11b\)

For a and b to be whole numbers,

\(\left \{ {{a=5} \atop {b=4}} \right.\)

So the number is 54.

The general solution form for the recurrence tn = 120,-2 - 166n-3 + 2.

Given a recurrence relation tn = 120,-2 - 166n-3 + 2 we have to derive the general solution form for the recurrence sequence.

We have the recurrence relation tn = 120,-2 - 166n-3 + 2

We need to find the solution for the recurrence relation.

Associated Homogeneous Equation: First, we need to find the associated homogeneous equation.

                                     tn = -166n-3 …..(i)

The characteristic equation is given by the following:tn = arn. Where ‘a’ is a constant.

We have tn = -166n-3..... (from equation i)ar^n = -166n-3

                                Let's assume r³ = t.

Then equation i becomes ar^3 = -166(r³) - 3ar^3 + 166 = 0ar³ = 166

Hence r = ±31.10.3587Complex roots: α + iβ, α - iβ

Characteristics Polynomial:

                   So, the characteristic polynomial becomes(r - 31)(r + 31)(r - 10.3587 - 1.7503i)(r - 10.3587 + 1.7503i) = 0

The general solution of the Homogeneous equation:

Now we have to find the general solution of the homogeneous equation.

                  tn = C1(-31)n + C2(31)n + C3 (10.3587 + 1.7503i)n + C4(10.3587 - 1.7503i)

                        nWhere C1, C2, C3, C4 are constants.

Computing a Particular Solution:

                Now we have to compute the particular solution.

                                  tn = 120-2 - 166n-3 + 2

Here the constant term is (120-2) + 2 = 122.

The solution of the recurrence relation is:tn = A122Where A is the constant.

The General Solution of Non-Homogeneous Equation:

        The general solution of the non-homogeneous equation is given bytn = C1(-31)n + C2(31)n + C3 (10.3587 + 1.7503i)n + C4(10.3587 - 1.7503i)n + A122

Hence, we have derived the general solution form for the recurrence tn = 120,-2 - 166n-3 + 2.

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Başka hangi dil derslerini gördüğümü kastediyorsan, Fransızca ve Arapça görüyorum

Answer:

2. 7 parts are not green. 3. There both equal amounts.

Step-by-step explanation:

Answer:

Orange:

1/4 ÷ 4 = 1/16

1/4 + 1/16 = 5/16

Blue:

1/16 + 1/5 = 21/80

Yellow:

1/4 + 1/16 = 5/16

Green:

1 - 1/5 = 4/5

1/16 + 4/5 = 69/80

__________________

1 - 69/80 = 11/80

__________________

5/16 - 21/80 = 1/20

The 95% confidence interval for voters not favoring is approximately 16.08% to 23.92%.

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The number of dimes and nickels in her collection are 296 and 108 respectively.

She had collected 540 coins. which were worth $60.

She counted 100 quarters in her saving.

The number of dimes and nickel in her collection can be solved as follows:

Therefore,

let

x = number of dimes

y = number of nickels

number of quarters = 100

Therefore,

x + y + 100 = 504

x + y = 504 - 100

x + y = 404

Hence,

0.1x + 0.05y + 100(0.25) = 60

0.1x + 0.05y  = 60 - 25

0.1x + 0.05y  = 35

combine the equation

x + y = 404

0.1x + 0.05y  = 35

Multiply equation(i) by 0.1

0.1x + 0.1y = 40.4

0.1x + 0.05y  = 35

subtract equation(ii) from equation(i)

0.05y = 5.4

divide both sides by 0.05

y = 5.4 / 0.05

y = 108

x = 404 - 108

x = 296

Therefore,

Number of dimes = 296

Number of nickels = 108

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\(5^{6} *5^{-2} =625\)

If you go twice as fast, your stopping distance will increase by four times (option C).

This relationship is based on the laws of physics and the principles of motion.

When an object is in motion, its stopping distance is influenced by its initial speed, reaction time, and braking capabilities. The stopping distance consists of two components: the thinking distance (the distance traveled during the reaction time) and the braking distance (the distance needed to bring the object to a complete stop).

According to the laws of physics, the braking distance is directly proportional to the square of the initial speed. This means that if you double your speed, the braking distance will increase by a factor of four. In other words, going twice as fast will require four times the distance to come to a stop.

It is important to note that this relationship assumes other factors, such as road conditions and braking efficiency, remain constant. However, in real-world scenarios, these factors may vary and can affect the stopping distance to some extent.

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The confidence interval for the given standard deviation is  [992.3, 1390.9].

What is standard deviation?

Standard Deviation is a measure that shows what quantity variation (such as unfold, dispersion, spread,) from the mean exists. the quality deviation indicates a “typical” deviation from the mean. it's a well-liked live of variability as a result of it returns to the first units of live of the info set.

Main body:

A)

Mean = 1191.6

standard deviation = 506.6

n = 43

for true average lifetime C.I. = 99%

z value for 99% in z table = 2.55

C.I. = Mean ± z*s/√n

C.I. = 1191.6 ± 2.55*506.6/√43

C.I. = 1191.6 ± 197.0

C.I. = [992.3, 1390.9]

hence the confidence interval  is  [992.3, 1390.9].

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The actual amount of snowfall is 4.2 inches.

Percent error is the difference between estimated value and the actual value in comparison to the actual value and is expressed as a percentage.

Expected amount: 3 inches.

Actual amount: x inches.

Percentage error = (x- 3)/3 *100%

40= (x- 3)/3 *100%

0.4*3= x-3

1.2 = x-3

x= 4.2 inches.

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Answer:

If the mother (red line) cycles at 12 mph, it means that in half an hour (x=0.5) she cycled for 6 miles.

The daughter (blue line) walks at 1/3 of her speed, or 4 mph. It means that in half an hour she traveled 2 miles, and 4 miles after an hour.

Assuming that they start at the same point at distance zero, it's just joining the dots.

Step-by-step explanation:

1cantimeter=10mm

14mm=1.4cm

Area of circle pi r²=pi*1.4²=1.96pi

Step-by-step explanation:

cost of 2 pounds strawberies=$3.00

unit cost per pound strawberries=$3.00/2

=$01.50 answer.

Answer:

262

Step-by-step explanation:

Answer:

CGF=262

Step-by-step explanation:

it’s A

Answer:

=3h+2

Step-by-step explanation:

p(z) =3z - 7 whenz= 3+h

p(z) =3(3+h) - 7

      =9+3h-7

      =3h+2

Correlation coefficients examine the relationship between variables.

They help in determining the strength and direction of the association between two continuous variables, making it easier to understand and interpret their connection.

Correlation coefficients are statistical measures used to examine the relationship between two or more variables. The correlation coefficient quantifies the degree to which the variables are related or associated with each other.

A positive correlation coefficient indicates that when one variable increases, the other variable also tends to increase, while a negative correlation coefficient indicates that when one variable increases, the other variable tends to decrease.

A correlation coefficient of zero indicates no relationship between the variables.

Correlation coefficients are often used in research studies to examine the strength and direction of the relationship between two variables.

For example, in a study examining the relationship between exercise and weight loss, a correlation coefficient could be calculated to determine how strongly exercise and weight loss are related.

It is important to note that correlation does not imply causation, and a strong correlation between two variables does not necessarily mean that one variable causes the other.

Correlation coefficients are simply used to describe the relationship between two variables and to identify patterns in the data.

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Answer:

x = 96 degrees

Step-by-step explanation:

49 + 35 + x = 180

84 + x = 180

x = 180 - 84

x = 96 degrees

Answer:

-8

Step-by-step explanation: