19 points Help please quick i will give you 19 points

Answer:

negative because the sum is -1.3

Step-by-step explanation:

Give me brainliest please thank you or rate my answer

4a^2+7ab-b^2

Step-by-step explanation:

Add the first two equations together:

 3a^2-ab-2b^2

+ 2a^2+5ab-3b^2

---------------------------

5a^2+4ab-5b^2

Subtract that answer from the remaining trinomial:

5a^2+4ab-5b^2

- a^2-3ab-4b^2

--------------------------

4a^2+7ab-b^2

Answer:

4a^2 + ab - 9b^2

Step-by-step explanation:

First, perform the indicated addition:

3a^2-ab-2b^2

2a^2+5ab-3b^2

------------------------

5a^2 + 4ab - 5b^2

From this sum we subtract a^2 - 3ab - 4b^2:

 5a^2 + 4ab - 5b^2

-(a^2 - 3ab - 4b^2

------------------------------

 4a^2 + ab - 9b^2

Answer:

Domain:  { 2 ,  3 ,  − 1 ,  6 }

Range: { 9 ,  4 ,  2 ,  1 }

Step-by-step explanation:

Convenience purchase: Coca-Cola. Shopping purchase: Apple iPhone. Specialty purchase: Rolex. These brand name products correspond to their respective purchase types based on convenience, shopping involvement, and specialty appeal in the consumer marketplace.

Convenience purchases refer to low-involvement purchases made by consumers for everyday items that are readily available and require minimal effort to obtain. These purchases are typically driven by convenience and habit rather than extensive consideration or brand loyalty.

Shopping purchases involve higher involvement and more deliberate decision-making. Consumers invest time and effort in comparing options, seeking the best value or quality, and may consider multiple brands before making a purchase. These purchases often involve durable goods or products that require more consideration.

Specialty purchases are distinct and unique purchases that cater to specific interests, preferences, or hobbies. These purchases are driven by passion, expertise, and a desire for premium or specialized products. Consumers are often willing to invest more in these purchases due to their unique features, quality, or exclusivity.

Three specific brand name products in the consumer marketplace that correspond to these types of purchases are

Convenience Purchase: Coca-Cola (Soft Drink)

Coca-Cola is a widely recognized brand in the beverage industry. It is readily available in various sizes and formats, making it a convenient choice for consumers seeking a refreshing drink on the go.

With its widespread availability and strong brand presence, consumers often make convenience purchases of Coca-Cola without much thought or consideration.

Shopping Purchase: Apple iPhone (Smartphone)

The Apple iPhone is a popular choice for consumers when it comes to shopping purchases. People invest time researching and comparing features, pricing, and user reviews before making a decision.

The shopping process involves considering various smartphone brands and models to ensure they select a product that meets their specific needs and preferences.

Specialty Purchase: Rolex (Luxury Watches)

Rolex is a well-known brand in the luxury watch industry and represents specialty purchases. These watches are associated with high-quality craftsmanship, precision, and exclusivity.

Consumers who are passionate about luxury watches and seek a premium product often consider Rolex due to its reputation, heritage, and unique features. The decision to purchase a Rolex involves a significant investment and is driven by the desire for a prestigious timepiece.

These examples illustrate how different types of purchases align with specific brand name products in the consumer marketplace, ranging from convenience-driven choices to more involved shopping decisions and specialty purchases driven by passion and exclusivity.

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Answer:

3x+4y= 12.5-----------1

3x+2y= 8.5------------2

Step-by-step explanation:

Given data

let cheese pizza be x and  mushroom pizza be y

Hence

3x+4y= 12.5-----------------------1

also

3x+2y= 8.5--------------------------2

Hence the systems of the equation is given as

3x+4y= 12.5-----------1

3x+2y= 8.5------------2

There are 3080 ways 3 men and 2 women can be chosen if they are equally considered, using the multiplication principle of counting

The multiplication principle states that if there are m ways to perform one task and n ways to perform another task, then there are m x n ways to perform both tasks together.

To find the number of ways to choose 3 men from the 12 men, we can use the formula for combination, which is: ⁿCᵣ = n! / (r! (n-r)!).

where n is the total number of men and r is the number of men chosen

so, the number of ways to choose 3 men from the 12 men = ¹²C₃ = 1.

Similarly, we evaluate the number of ways to choose 2 women from the 8 women

as = ⁸C₂ = 14

Now, using the multiplication principle, we can find the total number of ways 3 men and 2 women be chosen if they are equally considered.

220 x 14 = 3080

Therefore, there are 3080 ways 3 men and 2 women can be chosen if they are equally considered, using the multiplication principle of counting

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Answer:

Explanation Below:

Step-by-step explanation:

To solve this you have to do this:

13.27/x (x being the discount ) x 15% = 11.2795

The answer is 11.2795

:)

If you wanted to save $30,000 you need to work 30 times .

Given:

if you wanted to save $30,000 to buy a new car. instead of focusing on saving the whole amount, you work to earn $1,000 at a time. this makes the process seem more manageable to you because you are using the heuristic.

Number of times to work = money to save / at a time money.

= $30000/$1000

= 30000/1000

= 3000/100

= 300/10

= 30 times

Therefore you need to work 30 times to earn $30,000.

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Answer:

The price of a child ticket in dollars $8.00

Step-by-step explanation:

The flux across the portion of the sphere in the direction away from the origin is zero.

To find the flux, we need to calculate the surface integral of the vector field across the portion of the sphere. Let's assume the sphere has radius R and center at the origin. To parametrize the portion of the sphere in the direction away from the origin, we can use spherical coordinates.

Let θ range from 0 to π/2 and φ range from 0 to 2π. These limits define the portion of the sphere in the first octant. The parametrization is given by:

x = R*sin(θ)cos(φ)

y = Rsin(θ)sin(φ)

z = Rcos(θ)

Next, we need to calculate the outward unit normal vector, which is given by:

n = (sin(θ)*cos(φ), sin(θ)*sin(φ), cos(θ))

Now, we consider the flux integral:

Flux = ∫∫(F ⋅ n) dS

Since the portion of the sphere is in the direction away from the origin, the unit normal vector points outward. If we evaluate the dot product F ⋅ n, we can see that it simplifies to zero, regardless of the vector field F.

The flux across the portion of the sphere in the direction away from the origin is zero. This result is independent of the vector field and is due to the symmetric nature of the portion of the sphere in the first octant.

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the terms on the left side of the equation can be set equal to the terms on the right side. This results in \(a^2 + 2ab + b^2 = 16x^2, a^2 + px = 2ab, and b^2 + 25 = 0.\) Solving these equations results in a = 4x, b = -4x, and p = -16x^2.

a = 4x, b = -4x, and \(p = -16x^2.\)

Given the equation \((a+b)^2 = 16x^2+px+25\), where a, b > 0 and p < 0, the values of a, b, and p can be determined. First, the equation can be expanded to\(a^2 + 2ab + b^2 = 16x^2+px+25.\) Then, the terms on the left side of the equation can be set equal to the terms on the right side. This results in \(a^2 + 2ab + b^2 = 16x^2, a^2 + px = 2ab, and b^2 + 25 = 0.\)Solving these equations results in a = 4x, b = -4x, and \(p = -16x^2.\\\)

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Answer:

$49.297

Step-by-step explanation:

21.5% x 3

divide answer by $76.43

leaves you with how much interest you have earned in 3 months.

Answer:

8

Step-by-step explanation:

a A + b A where A is a matrix and a and b are scalars

(a+b) A

Step-by-step explanation:

profit= revenue - cost

profit = 2(87)-69.80

=174-69.20=104.8 R

When Group A loses an item or items to Group B even though Group A's population grew at a faster rate than Group B's, the Simpson's Paradox occurs.

This statistical anomaly happens when a trend appears in different groups of data, but disappears or reverses when the groups are combined. It is crucial to consider the context and variables involved when analyzing data, as the Simpson's Paradox may lead to incorrect conclusions if only aggregate data is examined.

This paradox serves as a reminder to always investigate the underlying factors that may influence statistical results.

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Answer:

The expression equals 0, and The expression describes the number that is 8 to the right of -8 on the number line.

Step-by-step explanation:

Let Cesar's, Carmen's and Dalila's amount be represented by x, y and z respectfully.

Since they're money sum up to $95.34, the first expression will be;

x+y+z=95.34

Carmen_y_ is $12.12 less than cesar_x, so the equation will be ;

y=x-12.12

Cesar_x_raised $35more than Dalila_z. So the equation will be;

x=z+35

making z the subject, z=x-35 .

Substituting the Second equation into the first one, we get;

x+x-12.12+z=95.34

Subtracting the third equation into the new equation we get;

x+x-12.12+x-35=95.34

Simplifying, we get 3x- 47.12= 95.34.

3x=142.46

The key here is to know place values

We can move from right to left and understand the place values.

• Right most "4" is place value of ones

• Moving left, "4" has place values tens

• Moving left, "2" has place value hundreds

• Again left, "8" has place value thousands

• Left, "4" has place value ten thousands

• Lastly (leftmost digit, 4), "4" has place value hundred thousands

Now,

The left-most pair of 4s have place value of:

hundred thousands and ten thousands, that means:

Also, now, let's look at right-most pair of 4s, they have place value of:

ones and tens, that means:

We have to figure out the relationship between 400,000 and 40,000 and also between 4 and 40.

We can simply see that 40 is 10 times the number 4.

Also, 400,000 is 10 times the number 40,000.

Hence, the value of one of the 4's is 10 times the value of the other 4's (IN BOTH THE PAIRS, leftmost pair and rightmost pair).

Answer:

$3990

Step-by-step explanation:

So first,you need to add the dollars that Sarah spend and which is equal to $1330($360+$970) and you need to subtract the money that Sarah spend($1330) and the budget of her money ($5320) so which is $5,320-$1,330 so the answer is $3,990

The solution to the equation \((\sum\limits^{\infty}_{i=1} \frac{1}{2^i}) + (\sum\limits^{\infty}_{i=1} \frac{9}{10^i}) + \sin^2(\theta) + \cos^2(\theta) + e^2\) is 10.3891

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

\((\sum\limits^{\infty}_{i=1} \frac{1}{2^i}) + (\sum\limits^{\infty}_{i=1} \frac{9}{10^i}) + \sin^2(\theta) + \cos^2(\theta) + e^2\)

Using the following trigonometry ratio

sin²(x) + cos²(x) = 1

We have

\((\sum\limits^{\infty}_{i=1} \frac{1}{2^i}) + (\sum\limits^{\infty}_{i=1} \frac{9}{10^i}) + \sin^2(\theta) + \cos^2(\theta) + e^2 = (\sum\limits^{\infty}_{i=1} \frac{1}{2^i}) + (\sum\limits^{\infty}_{i=1} \frac{9}{10^i}) + 1 + e^2\)

The sum to infinity of a geometric series is

S = a/(1 - r)

So, we have

\((\sum\limits^{\infty}_{i=1} \frac{1}{2^i}) + (\sum\limits^{\infty}_{i=1} \frac{9}{10^i}) + \sin^2(\theta) + \cos^2(\theta) + e^2 = \frac{1/2}{1 - 1/2} + \frac{9/10}{1 - 1/10} + 1 + e^2\)

So, we have

\((\sum\limits^{\infty}_{i=1} \frac{1}{2^i}) + (\sum\limits^{\infty}_{i=1} \frac{9}{10^i}) + \sin^2(\theta) + \cos^2(\theta) + e^2 = 1 + 1 + 1 + e^2\)

Evaluate the sum

\((\sum\limits^{\infty}_{i=1} \frac{1}{2^i}) + (\sum\limits^{\infty}_{i=1} \frac{9}{10^i}) + \sin^2(\theta) + \cos^2(\theta) + e^2 = 3 + e^2\)

This gives

\((\sum\limits^{\infty}_{i=1} \frac{1}{2^i}) + (\sum\limits^{\infty}_{i=1} \frac{9}{10^i}) + \sin^2(\theta) + \cos^2(\theta) + e^2 = 10.3891\)

Hence, the solution to the equation is 10.3891

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Answer:

.05 euro for each 1 pack of small,  around .051 euro for each medium, and around .052 euro for 30

Step-by-step explanation:

best to go for the small pack.  ill be .50 euros to get 10 small packs, .51 euros to get 10 medium packs, and .52 euros to get 1- big packs

This is my best guess, so don"t be rewarding me yet till you get it right

(this is the skeleton in your closet saying don"t forget to thank your gifts

\(\qquad \qquad\huge \underline{\boxed{\sf Answer}}\)

The Correct choice is B

\(\qquad \sf  \dashrightarrow \: y = - 2x + 5\)

The probability of randomly selecting a primitive element from this group can be calculated by dividing the number of primitive elements (960) by the total number of elements in the group (3708). Therefore, the probability is approximately 0.259 or 25.9%.

1. The multiplicative group Z3709 consists of integers modulo 3709 that are coprime to 3709. To determine the number of primitive elements in this group, we need to find the totatives or numbers coprime to 3300 (φ(3709)). Euler's totient function φ(n) calculates the number of positive integers less than n that are coprime to n. In this case, φ(3300) = 960. These 960 elements are the primitive elements of Z3709.

2. To find the probability of randomly selecting a primitive element from the group, we divide the number of primitive elements (960) by the total number of elements in the group. Since Z3709 has 3708 elements (excluding 0), the probability is given by 960/3708 ≈ 0.259, which can be expressed as approximately 25.9%. Therefore, if an element is chosen randomly from the group Z3709, there is a 25.9% chance that it will be a primitive element.

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The area is 3560 square inches

The formula for calculating the area of a triangle is expressed as;

A = 1/2bh

Such that the parameters are;

Using the sine rule, we have that;

sin 63/r = sin 92/89

cross multiply the values, we have that;

r = 79. 29/0. 99

Divide the values, we have;

r = 80 inches

Then, we have;

Area = 1/2 ×80 × 89

Area = 3560 square inches

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The original amount of the bag before the discount can be calculated by finding the amount that corresponds to a 25% reduction from the sale price.

Let's assume the original amount of the bag is represented by "x." The sale price is obtained by subtracting 25% of "x" from "x," which gives us 0.75x (since 25% is equivalent to 0.25). We are given that Mrs. Delles spent $120 on the bag, so we can set up the equation 0.75x = $120 to find the original amount.

To solve the equation, we divide both sides by 0.75 to isolate "x." This gives us x = $160. Therefore, the original amount of the bag before the discount was $160.

In this scenario, the discount of 25% represents the reduction in price from the original amount. By finding the original amount that corresponds to the discounted price, we can determine the initial cost of the bag before the discount was applied.

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The margin of error provides a measure of the precision of the estimate, but it does not guarantee that the true value falls within the estimated range.

Estimating an unknown parameter, the margin of error indicates the range within which the true value of the parameter is likely to fall.

It provides a measure of uncertainty or variability associated with the estimate.

The margin of error is typically calculated based on statistical techniques and represents the maximum expected difference between the estimated value and the true value of the parameter.

It is often expressed as a range or interval around the point estimate.

A larger margin of error indicates greater uncertainty and a wider range of possible values for the parameter.

In contrast, a smaller margin of error indicates greater precision and a narrower range of possible values.

The margin of error is influenced by various factors such as sample size, variability of the data, and the chosen level of confidence.

Increasing the sample size generally reduces the margin of error, while greater variability or lower confidence level tends to increase it.

It represents the level of confidence associated with the estimate and helps quantify the potential uncertainty in the estimation process.

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The expression is equivalent to "\(z^4 * (z + 6)^2 + (z + 6)\)".

To clarify, I understand the expression as: "z * (z + 6) * z * (z + 6) * z + (z + 6)". Let's break down the expression and simplify it step by step:

Distribute the multiplication:

z * (z + 6) * z * (z + 6) * z + (z + 6)

becomes

z * z * z * (z + 6) * (z + 6) * z + (z + 6)

Combine like terms:

z * z * z simplifies to \(z^3\)

(z + 6) * (z + 6) simplifies to (z + 6)^2

The expression now becomes:

\(z^3 * (z + 6)^2 * z + (z + 6)\)

Multiply \(z^3\) and z:

 \(z^3 * z\) simplifies to \(z^4\)

The expression becomes:

  \(z^4 * (z + 6)^2 + (z + 6)\)

So, an equivalent expression to "z (z + 6)z (z + 6)z + (z + 6)" is "\(z^4 * (z + 6)^2 + (z + 6)\)".

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The correct points are (1, 2) and (0,1).

To find the points that lie in the inverse of the graph of a function g(x), we need to swap the x and y values of the original graph.

Let's start by representing the original graph of g(x):

x | g(x)

-1 | 0.5

0 | 1

1 | 2

2 | 4

3 | 8

Now, we swap the x and y values:

y | x

0.5 | -1

1 | 0

2 | 1

4 | 2

8 | 3

These are the corresponding points for the inverse function.

So, the points that lie in the inverse of the graph of g(x) are:

(-1, 0.5), (0, 1), (1, 2), (2, 4), (3, 8).

Hence the correct points are (1, 2) and (0,1).

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Answer:20

Step-by-step explanation: you add 4 +4+4+4+4=20

ANSWER

My answer is in the photo above