Evaluate 10x^2y^–2 for x = –1 and y = –2.

We are given the function: f(x) = 4x + 5

To find f(-2), we substitute the value of x with -2 to get:

f(-2) = 4(-2) + 5

f(-2) = -8 + 5

f(-2) = -3

OPTION C

Answer:

ty

Step-by-step explanation:

Let x and y represent the cost of a blouse and a skirt respectively.

Given;

Dahlia paid $216 for 4 blouses and 5 skirts;

A skirt cost 4 times as much as a blouse;

We have a system of equation.

Solving the simultaneous equation by substitution;

substituting the value of x into equation 2 to solve for y;

So, the cost of 5 skirts is;

Answer: dotted/dashed line

Answer:

\(\mathrm{No\:Solution}\)

Step-by-step explanation:

\(\begin{bmatrix}Y=3x-2\\ Y-3x=4\end{bmatrix}\)

\(\mathrm{Substitute\:}Y=3x-2\)

\(\begin{bmatrix}3x-2-3x=4\end{bmatrix}\)

\(\mathrm\:{Combine\:like\:terms:\)

\(\begin{bmatrix}-2=4\end{bmatrix}\)

\(-2=4\:\mathrm{\:is\:false,\:therefore\:the\:system\:of\:equations\:has\:no\:solution}\)

\(\mathrm{No\:Solution}\)

Question: How does advertising expenditure (X_2) affect the quantity demanded (Q_t) based on the given demand function?

To investigate the relationship between advertising expenditure (X_2) and the quantity demanded (Q_t) using the given demand function, we need to understand the steps involved:

Begin by understanding the demand function: The demand function is expressed as Q_t = a_o + α_1 ln P_t + a_2 X_1 + E_Dt. It represents the quantity demanded (Q_t) as a function of market price (P_t), an exogenous variable X_1, and an error term E_Dt.

Introduce the new exogenous variable: In this case, we introduce advertising expenditure (X_2) as an additional exogenous variable. We want to investigate how this variable affects the quantity demanded.

Analyze the coefficient: The coefficient a_2 in the demand function represents the impact of X_1 on the quantity demanded. However, since we introduced a new exogenous variable X_2, we need to estimate the impact of X_2 on Q_t. By analyzing the coefficient a_2, we can determine the direction and magnitude of this relationship.

Conduct statistical analysis: To quantify the relationship between advertising expenditure (X_2) and the quantity demanded (Q_t), statistical analysis such as regression can be performed. By estimating the coefficients and conducting hypothesis tests, we can determine if X_2 has a statistically significant impact on Q_t.

Interpret the results: Based on the statistical analysis, we can interpret the results and draw conclusions regarding the relationship between advertising expenditure (X_2) and the quantity demanded (Q_t). The coefficient estimate and its statistical significance will provide insights into the direction and strength of this relationship.

In summary, by incorporating advertising expenditure (X_2) into the demand function and conducting statistical analysis, we can assess its impact on the quantity demanded (Q_t) and draw meaningful conclusions regarding the relationship between the two variables.

For more such question on demand function

https://brainly.com/question/16888880

#SPJ8

The complete question may be like:

5 marks] Consider the following demand function for the quantity demanded of product Q_t as a function of its market price P_t:

Q_t = a_o + α_1 ln P_t + a_2 X_1 + E_Dt

where a_o, α_1, a_2, and E_Dt are parameters. X_1 represents an exogenous variable that affects the quantity demanded.

Now, let's imagine that you are a researcher studying the demand for a specific product, and you want to investigate the impact of advertising expenditure (represented by an exogenous variable, X_2) on the quantity demanded.

Formulate a question that addresses the relationship between advertising expenditure (X_2) and the quantity demanded (Q_t) based on the given demand function.

Answer:

mean =225.25, median= 212.5

Step-by-step explanation:

You add all the numbers and divided by the total numbers to get mean, and for get the median you need to put them in order and get the number that is between all the number it be the 202 and 223 so you divide the two number with two and it will be 212.5

Pls give brainliest ily<3

Tenemos precio de lista de $25 para el libro.

Si aplicamos un descuento del 25%, este descuento representa:

Ahorramos $6.25.

El precio que pagamos el libro es $18.75.

Therefore, we can conclude that the state of Alabama sold 1,110,000 packs of playing cards, since the tax of 5 cents per pack generated a total revenue of $55500

Based on the given information, we can calculate the total number of packs of cards sold in the state of Alabama.

To find the number of packs of cards sold, we need to use the formula:

Revenue = Tax per pack x Number of packs sold

We are given that the tax per pack is 5 cents, and the revenue generated is $55500. So, we can rewrite the formula as:

$55500 = 0.05 x Number of packs sold

To solve for the number of packs sold, we can divide both sides of the equation by 0.05:

Number of packs sold = $55500 / 0.05
Number of packs sold = 1,110,000

Therefore, the state of Alabama sold 1,110,000 packs of playing cards, since the tax of 5 cents per pack generated a total revenue of $55500.


The given question asks us to find the number of packs of playing cards sold in the state of Alabama, assuming that the state placed a tax of 5 cents per pack and generated a revenue of $55500. To solve this problem, we need to use the formula that relates the tax per pack, the number of packs sold, and the revenue generated.

The formula for calculating the revenue generated from a tax on playing cards is:

Revenue = Tax per pack x Number of packs sold

In this case, we are given that the tax per pack is 5 cents, and the revenue generated is $55500. We need to find the number of packs sold.

To do this, we can rearrange the formula to solve for the number of packs sold:

Number of packs sold = Revenue / Tax per pack

Substituting the given values, we get:

Number of packs sold = $55500 / 0.05
Number of packs sold = 1,110,000

Therefore, we can conclude that the state of Alabama sold 1,110,000 packs of playing cards, since the tax of 5 cents per pack generated a total revenue of $55500. It is important to note that this calculation assumes that the tax rate and revenue are directly proportional to the number of packs sold, and that there are no other factors affecting the market for playing cards in Alabama.

To know more about Revenue visit:

brainly.com/question/19584479

#SPJ11

The answer to the expression is 13/6

The expression is

1/2 × 3 + 2/3

Apply the rule of BODMAS

Multiplication comes before addition

1/2 × 3 + 2/3

= 3/2 + 2/3

The LCM of both sides is 6

9 + 4/6

= 13/6

Hence the solution to the expression is 13/6

Read more on expression here

https://brainly.com/question/8546176

#SPJ1

Answer: 678900 to the 10 power

Step-by-step explanation:

Answer:

6.4 x 10²

Step-by-step explanation:

1st step: divide 5.76 by 9 which is .64

2nd step: 10^7÷10^4 = 10^7-4 or 10³

We have a basket and a hat.

The basket has the numbers 1, 2, 3, 4 and 5.

The hat contains the letters A, B, C and D.

We have to calculate the probabiltiy of drawing a number that is greater than 3 from the basket and drawing the letter C from the hat.

We have two events:

- Drawing a number greater than 3 from the basket

- Drawing a C from the hat

They are independent as the probability of each on does not depend on the outcome of the other event.

Then, we can calculate the probability of the two events happening together as the product of its probabilities:

The probability of drawing a number greater than 3 can be described as 2/5, as we have 2 numbers greater than 3 (4 and 5) out of 5 numbers in the basket.

The probability of drawing a letter C can be described as 1/4, as we have one letter C out of 4 letters available.

Then, we can calculate the probability as:

Answer: the probability is 1/10 or 0.1.

Answer: A

Step-by-step explanation:

The chance of observing Mississippi after permuting the letters of it and randomly picking a word from that set is 1 in 34032.

The number of words that can be constructed from the letters of the word "Mississippi" is given by the number of permutations of those letters. Since the letters are not unique, we use the formula for permutations with repetition:

n! / (n₁! ×  n₂! ×  ... × nk!)

where n is the total number of letters, and n₁, n₂, ..., nk are the number of times each letter is repeated.

In this case, n = 11 and n₁ = 4, n₂ = 4, n₃ = 2, n₄ = 1.

So, the number of words that can be constructed is 11! / (4! × 4! × 2! × 1!) = 34, 032.

Thus, the chance of observing "Mississippi" is 1 in 34, 032 or approximately 1/34.

Learn more about permutations here: https://brainly.com/question/1216161

#SPJ4

Answer:

Step-by-step explanation:

To get  how far up the tree that Mr. Jones tied the rope, we will use the Pythagoras theorem since a right angle is created with the rope and the base of the tree.

The length of the rope will be the hypotenuse

The distance up the tree and away from the base will be the opposite and adjacent.

Given

length of the rope = 8feet

Distance away from the base of the tree = 6ft

According to Pythagoras;

hyp² = opp²+adj²

8² = opp²+6²

opp² = 8²-6²

opp² = 64-36

opp² = 28

opp = 5.3 feet

Hence the Mr Jones tied the rope 5.3feet above the tree. Option C is correct

As the sample size rises, the width of a 95% confidence interval for a sample proportion decreases.

If the sample size is four times greater than the initial sample size but the sample percentage remains constant, the breadth of the 95% confidence interval is reduced by around a factor of two.

This is due to the fact that the standard error, which defines the width of the confidence interval, is proportional to the sample size squared. When the sample size is multiplied by four, the square root of the sample size multiplies by two, resulting in a lower standard error and a smaller confidence range.

Read more about Confidence Interval from:

https://brainly.com/question/29680703

#SPJ4

Answer:

f(3) = - 60

Step-by-step explanation:

To evaluate f(3) substitute x = 3 into f(x), that is

f(3) = 5(3)² - 7(4(3) + 3)

     = 5(9) - 7(12 + 3)

     = 45 - 7(15)

     = 45 - 105

     = - 60

Answer:

7.2

Step-by-step explanation:

Answer:

\begin{bmatrix}\mathrm{Solution:}\:&\:x\ge \:0\:\\ \:\mathrm{Interval\:Notation:}&\:[0,\:\infty \:)\end{bmatrix}

\begin{bmatrix}\mathrm{Solution:}\:&\:f\left(x\right)=1\:\\ \:\mathrm{Interval\:Notation:}&\:f\left(x\right)=1\end{bmatrix}

Step-by-step explanation:

Answer:

third

Step-by-step explanation:

Answer:

11 and 12

Step-by-step explanation:

the square root of 125 is 11.18

Answer:

B

Step-by-step explanation:

The enzyme that has a very similar reaction mechanism to 6-phosphogluconate dehydrogenase in glucose oxidation by the citric acid cycle is isocitrate dehydrogenase.

Isocitrate dehydrogenase is a key enzyme in the citric acid cycle, also known as the Krebs cycle  or TCA cycle. It catalyzes the conversion of isocitrate to alpha-ketoglutarate, while producing NADH and CO2 as byproducts. This reaction is an important step in the oxidation of glucose and the production of energy in the form of ATP. The reaction mechanism of isocitrate dehydrogenase involves the removal of a carboxyl group from isocitrate, resulting in the formation of an intermediate molecule called oxalosuccinate. This intermediate is then decarboxylated to produce alpha-ketoglutarate. The overall reaction is coupled with the reduction of NAD+ to NADH. 6-phosphogluconate dehydrogenase, on the other hand, is involved in the pentose phosphate pathway and plays a role in glucose metabolism. Although it operates in a different pathway, the reaction mechanism of 6-phosphogluconate dehydrogenase shares similarities with isocitrate dehydrogenase, particularly in the decarboxylation step and the involvement of NAD(P)+ as a cofactor.

Learn more about Krebs cycle here:

https://brainly.com/question/13153590

#SPJ11

According to scientists with the USGS Cascades Volcanic Observatory, a lahar could take four hours to reach Puyallup but less than an hour to reach Orting.

The Washington Emergency Management Division has issued a survey to Pierce County residents to learn more about lahars, which are volcanic mudflows that contain a mixture of water and volcanic debris such as boulders. The survey is scheduled to close on Friday.

Hazard maps show that if Mount Rainier erupts, lahar could travel through river valleys as far as Puyallup, Tacoma, and Randle.

Some areas would have more time than others to evacuate. According to the US Geological Survey, previous Mount Rainier lahars travelled at 45-50 miles per hour.

To learn more about US Geological Survey link is here

brainly.com/question/29384439

#SPJ4

The graph is a decreasing exponential graph.

Part A: The given graph is decreasing the exponential graph since the graph is decreasing rapidly as the value of x is increasing the value of y is decreasing very rapidly.

Part B: The graph shown here is maybe the case of any electric appliance which is of cheap quality. The time when it is brought then its performance and its life is awesome after that its life is decreasing rapidly.

Learn more about graph on:

https://brainly.com/question/19040584

#SPJ1

The required general solution of the differential equation in implicit form y = \([(3/2) * (15x + C) * x^{-3}]^{-3/2}\).

The differential equation is a nonlinear equation and cannot be solved exactly by standard methods. One way to approach a solution is to try to find a substitution that transforms the equation into a separable form, where the variables can be separated and integrated separately. A common approach is to make the substitution y = v^(-2/3), which transforms the equation into:

3x^2 * (2/3) * v^(-5/3) * v' + 6x * v^(-2/3) = 15 * v^(-5/3)

Dividing both sides by v^(-5/3), we get:

3x^2 * (2/3) * v' + 6x * 3 * (2/3) * v^(1/3) = 15

This is now a separable differential equation, and we can integrate both sides to find the general solution:

∫(3x^2 * (2/3) * v' dx) = ∫(15 dx) + C

(2/3) * x^3 * v = 15x + C

v = (3/2) * (15x + C) * x^(-3)

Finally, substituting back for y = v^(-2/3), we get the general solution:

y = \([(3/2) * (15x + C) * x^{-3}]^{-3/2}\)

This is the general solution of the differential equation in implicit form. To find an explicit form, one could solve for C using initial or boundary conditions.

To know more about differential equation visit:

brainly.com/question/14620493

#SPJ4

Answer:

girls are more likely to choose a 4-year college, while boys are more likely to choose a 2-year college

Step-by-step explanation:

hope this helps :]

(x1,y1) = (-1,4)

(x2,y2) = (6,5)

Slope formula (m)

Replace with the values given:

Slope = 1/7