i do not get any of this thing

Answer:

Answer as an ordered pair:  (1, 1)

Step-by-step explanation:

Method to solve:  Elimination:

First we need to multiply the first equation by -1.  Then, we'll add the two equations to eliminate the ys and solve for x:

Multiplying y = -2x + 3 by -1:

-1(y = -2x + 3)

-y = 2x - 3

Adding -y = 2x - 3 and y = 5x - 4:

    -y = 2x - 3

+

     y = 5x - 4

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

(-y + y) = (2x + 5x) + (-3 - 4)

Solving for x:

(0 = 7x - 7) + 7

(7 = 7x) / 7

1 = x

Thus, x = 1.  Now we can solve for y by plugging in 1 for x in any of the two equations in the system.  Let's use the first one:

Plugging in 1 for x in y = -2x + 3:

y = -2(1) + 3

y = -2 + 3

y = 1

Thus, y = 1

Therefore, the answer as an ordered pair is (1, 1)

Optional Step:  Checking the validity of our answers:

Now we can check that our answers are correct by plugging in (1, 1) for (x, y) in both equations and seeing if we get the same answers on both sides of the equation:

Plugging in 1 for x and 1 for y in y = -2x + 3:

1 = -2(1) + 3

1 = -2 + 3

1 = 1

Plugging in 1 for x and 1 for y in y = 5x - 4:

1 = 5(1) - 4

1 = 5 - 4

1 = 1

Thus, our answers are correct.

Option D, which refers to how much you need or get, equals the amount of money paid on July 8 and is $ 1600.

aggregate attempting to calculate the time required, total number or quantity.  The quantity at hand or under consideration is incredibly energetic.  the overall result, importance, or import. Principal, interest, and a third accounting. amounts, amounting, and amounted are word forms. flexible noun The quantity of something is how much there is, how much you have, how much you require, or how much you obtain. He requires that sum of money to get by.

given

Cash paid on July 8 equals ($1,800 - $200)* (1 - 0.02)

$1,568 (Purchase value - value of products returned)* (1 - Discount percentage) ( option c , option d )

Cash paid in August equals Purchase value minus Value of Returned Goods ($1,800 minus $200 = $ 1600). ( Option D )

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The Chi-square test is a statistical test used to determine if there is a significant difference between observed and expected frequencies in categorical data. In this example, the test is used to assess whether there is a significant difference in the mean breaking strengths of two types of cables.

The Chi-square test of significance is employed when dealing with categorical or nominal data. It compares the observed frequencies with the frequencies that would be expected if the variables were independent. In this case, the breaking strengths of the two cables are the variables of interest.

To perform the test, the first step is to define the null hypothesis (H0) and the alternative hypothesis (Ha). In this example, H0 assumes that there is no difference in the mean breaking strengths of the two cables, while Ha suggests that there is a difference.

Next, the test statistic, denoted by X2 (chi-square), is calculated using the formula X2 = Σ[(O - E)²/E], where O represents the observed frequencies and E represents the expected frequencies under the assumption of independence.

To determine the expected frequencies, we need to estimate the means and variances of the breaking strengths. Here, x = 1925 and sigma = 40 for the first cable, and x = 1905 and sigma = 30 for the second cable.

Once the test statistic is calculated, it is compared to a critical value from the Chi-square distribution with degrees of freedom equal to (r - 1)(c - 1), where r is the number of rows and c is the number of columns in the contingency table. The significance level of 0.01 determines the critical value.

If the calculated X2 value is greater than the critical value, we reject the null hypothesis and conclude that there is sufficient evidence to indicate a difference in the mean breaking strengths of the two cables. Conversely, if the calculated X2 value is less than or equal to the critical value, we fail to reject the null hypothesis and conclude that there is no significant difference.

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The standard deviation for the number of people with the genetic mutation in such groups of 100 is 1.4

From the information given,

About 2% of the population has a particular genetic mutation, and 100 people are randomly selected.

The standard deviation for the number of people with the genetic mutation in such groups of 100 is obtained below;

The required standard deviation is,

p = 0.02 and n = 100;

1 - p = 1 - 0.02

       = 0.98

σ = \(\sqrt{n*(1-p)*p}\)

σ = \(\sqrt{100*0.02*0.98}\)

σ = 1.4

The standard deviation for the number of people with the genetic mutation in such groups of 100 is 1.4

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Answer:

117/99 since there is a bar above the 1.18 it means it is repetitive

Step-by-step explanation:

Answer:

D=117/99

Step-by-step explanation:

The surface area of a rectangular prism is found as 150 square inches.

A rectangular prism is a polyhedron in geometry that has two parallel and congruent bases. It also goes by the name cuboid. Six faces make up a rectangular prism, and each face has a rectangle shape and twelve edges.

Actually, prisms get their name from the way their faces are shaped. Therefore, a rectangular prism is just a prism with rectangular faces. Although it is a closed, three-dimensional object, two rectangles serve as its foundation.

Calculation for the surface area of rectangular prism-

Height of a rectangular prism => H = 4 inches

Width of a rectangular prism => B = 9 inches

Length of a rectangular prism => L = 3 inches

Surface area of a rectangular prism = 2(LB + BH + HL)

                                                           = 2(9×3 + 9×4 + 4×3)

                                                           = 150

Therefore, the surface area of a rectangular prism is found as  150 square inches.

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Answer: I am sure is 12 package

Answer:

k= 7

Step-by-step explanation:

First let's add like terms: a+b+a=c: a²+b=c

k+9+5=21

k+14=21

Subtract 14 from both sides of the equation

k+14-14=21-14

K=7

Hi!

\(\tt{9+k+5=21}\)

Step 1: Combine like terms.

\(\tt{9+5+k=21}\)

\(\tt{14+k=21}\)

Step 2: Subtract 14 from both sides.

\(\tt{k=7}\) \(\checkmark\)

Have a great day!

Hope that helps. :)

-Stargazing & daydreaming -

Answer:

a

Step-by-step explanation:

based on this sample, the farmer might expect approximately 999 broken eggs in the shipment of 3,000 eggs. The closest answer option to this is 900 broken eggs.

To find an estimate of how many broken eggs the farmer might expect in the shipment of 3,000 eggs, we need to determine what proportion of the generated random numbers fall within the range of numbers that represent broken eggs (1-250).

Counting the number of generated random numbers that fall within this range, we get:

Number of generated random numbers between 1-250 = 4

Therefore, we can estimate that the proportion of broken eggs in the shipment is:

Proportion of broken eggs = Number of generated random numbers between 1-250 / Total number of generated random numbers

Proportion of broken eggs = 4 / 12

Proportion of broken eggs ≈ 0.3333

To estimate the number of broken eggs in the shipment of 3,000 eggs, we can multiply the estimated proportion of broken eggs by the total number of eggs:

Number of broken eggs ≈ Proportion of broken eggs x Total number of eggs

Number of broken eggs ≈ 0.3333 x 3000

Number of broken eggs ≈ 999

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Answer:

B) 1/4 x 88

Step-by-step explanation:

25%=25/100=1/4

25% of 88, of is basically multiplication

=1/4 x 88

Answer:

-1

Step-by-step explanation:

6(x) - (3y + 7) - xy

6(5) - (3(3) + 7) - (5)(3)

30 - (9+7) - 15

30 - 16 - 15

-1

Hope this helps! Pls give brainliest!

Answer:

-1

Step-by-step explanation:

1. replace all the variables with the values it gives you-

6(5) - [ 3(3) + 7] - (5)x(3)

2. then if you combine everything using pemdas-

30 - (9 + 7) - 15

3. repeat step #2-

30 - 16 - 15

4. then solve-

30 - 16 = 14 then subtract 15 to give you -1

Answer:

Download gauthmath it will help Jesus loves you

Answer:

250 ft

Step-by-step explanation:

circumference of circle 'C' is defined as

C = 2πr

250π = 2πr

r = 250π/2π

r= 125

d = 2r = 2×125 = 250 .

diameter of the given circle is 250 ft

The diameter of the circle is 250ft

Data;

The formula of circumference of a circle is given as

\(c = 2\pi r\)

Let's substitute the values in here and solve

\(c = 2 \pi r\\250\pi = 2 \pi r\\r = 125ft\)

The length of the radius is 125ft

But the length of diameter of a circle is twice the length of the radius

\(d = 2r\\d = 2 * 125\\d = 250ft\)

The diameter of the circle is 250ft

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Answer:

9

Step-by-step explanation:

Since Ian has 3/4 of an hour that is 45 minutes left till practice and it takes 5 minutes per question so he will have 9 questions finished

9514 1404 393

Answer:

  9 problems

Step-by-step explanation:

The number can be found by dividing the time by the rate.

  (3/4 h)/(1/12 problems/h) = (9/12)/(1/12) problems = 9/1 problems

  = 9 problems

Ian can finish 9 problems before leaving.

Answer: hello there here is your answer:

17.5 feet

Step-by-step explanation:

Area of rectangle = Length x Width  

Length = Area/Width = 122.5 / 7 = 17.5 feet

hope this helps

have a god day bye

Answer:

52 adult tickets

Step-by-step explanation:

We can write a system of equations to solve this:

Let x represent child tickets and y represent adult tickets.

x+y=146

5.4x+9.5y=1001.6

Solve for y in the first equation:

x+y=146

subtract x from both sides

y=146-x

Substitute this into the second equation:

5.4x+9.5(146-x)=1001.6

simplify

5.4x+1387-9.5x=1001.6

combine like terms

-4.1x + 1387=1001.6

subtract 1387 from both sides

-4.1x=-385.4

divide both sides by -4.1

x=94

Next, plug in this into the first equation and solve for y (adult tickets).

94+y=146

subtract 94 from both sides

y=52

So, 52 adult tickets were sold that day.

Hope this helps! :)

The estimated total sales after 11 months is approximately 235.54 thousand video games. To find and in the given equation for total sales, The equation is: total sales = 89 + 45ln(number of months since release) We can see that the coefficient of the natural logarithm function is 45.

So, we have: 45 = k where k is the growth rate of the video game sales. Now, to estimate the total sales after 11 months, we need to substitute 11 for in the equation: total sales = 89 + 45ln(11) Using a calculator, we get: total sales ≈ 235.54 Rounding to the nearest hundredth, we get: total sales ≈ 235.54 thousand.

So, the estimated total sales after 11 months is approximately 235.54 thousand video games.

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The multiplicity of a root r of the characteristic equation of A is called the algebraic multiplicity of r as an eigenvalue of A.

The above statement is True.

Eigenvalue:

An eigenvalue is a special set of scalar values ​​associated with the most probable system of linear equations in a matrix equation. Eigenvectors are also called eigenvalues. It is a non-zero vector which can be modified by at most its scalar factor after applying a linear transformation.

According to the Question:

If the geometric multiple of the eigenvalues ​​is greater than or equal to 2, the linearly independent set of eigenvectors is no longer unique to the multiple as before. For example, for the diagonal matrix A=[3003], one could also choose the eigenvectors [11] and [1−1], or any pair of two linearly independent vectors.

Sometimes vectors are simply expanded to vector times matrix. If this happens, this vector is called the eigenvector of the matrix and the "stretch factor" is called the eigenvalue. Example: Given a square matrix A, λ is the eigenvalue of A, and the corresponding eigenvector x is

Ax = λx.

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Answer:

12

Step-by-step explanation:

Think of this as a normal calculation at first.

Just focusing on the numbers themselves (not the roots) let's do the calculation.

8 × 18 = 144

Let's put the square roots back into play.

√144

And we know what the square root of 144 is (12).

The Center of the circle is (4, -8) and radius of the circle is 11 units.

A circle is a shape consisting of all points in a plane that are given the same distance from a given point called the center.

We have given circle in the plane has the equation;

x² + y² -8x + 16y=41

Now we will convert this equation to the standard form of the circle;

x² + y² -8x + 16y=41

[x² - 2(4)x] + [y² + 2(8)x] =41

[x² - 2(4)x + 4²] + [y² + 2(8)y + 8²] = 4² + 8² +41

(x - 4)² + (y + 8)² =  16 + 64 +41

(x - 4)² + (y + 8)² = 121

(x - 4)² + (y + 8)² = 11²

By comparing this equation with the standard equation of the circle as;

(x - h)² + (y - k)² = r²

The Center of the circle=  (4, -8)

The radius = 11 units.

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Answer:

35/2 or 17.5

Step-by-step explanation:

2x / 7 - 3 = 2

2x / 7 - 3 + 3 = 2 + 3

2x / 7 = 5

(2x /7) x 7 = 5 x 7

2x = 35

x = 35/2 or 17.5

Answer:

\(x = \frac{35}{2} \)

Step-by-step explanation:

\( \frac{2x}{7} -3=2\)

\( \frac{2x}{7} = 2 + 3\)

\(\frac{2x}{7} = 5\)

\(x = \frac{7}{2} \times 5\)

\(x = \frac{35}{2} \)

Decimal Form:

\(x = 17.5\)

Mixed Number Form:

\(x = 17 \frac{1}{2} \)

Answer: b = 45

Step-by-step explanation:

According to the Pythagorean Theorem of a right triangle, the square of leg a plus the square of leg b equals the square of c  (the hypotenuse). This can be mathematically expressed as \(a^{2} + b^{2} = c^{2}\).

Using the formula, we solve as follows:

\(a^{2} + b^{2} = c^{2}\)

(Insert the given numbers)

\(24^{2} + b^{2} = 51^{2}\)

(Simplify the exponents)

\(576 + b^{2} = 2,601\)

(Subtract 576 from both sides)

\(b^{2} = 2,025\)

(Simplify by finding the square root of each number)

\(\sqrt{b^{2} } = \sqrt{2,025}\)

Answer

\(b = 45\)

This task can be done in 31,680 different ways.

There are 12 unique books and 4 shelves, if you want to put at least 3 books in each shelve, then that is the only number of books that you can put, because:

3*4 = 12

Assuming order matters (in both shelves and books) one possible outcome is:

Shelve 1:

book 1, book 2, book 3.

Shelve 2:

book 4, book 5, book 6.

Shelve 3:

book 7, book 8, book 9.

Shelve 4:

book 10, book 11, book 12.

For each of the shelves, the possible permutations are:

3*2*1 = 6

And you have 4 shelves that can be permutated at the same time:

4*3*2 = 24

And you can also change the books in each shelf, the permutations there are (for each shelf):

\(C(12. 3) = \frac{12!}{(12 - 3)!*3!} = \frac{12*11*10}{3*2} = 220\)

Now the total number of combinations is given by the product between these:

P = 6*24*220 = 31,680 different ways.

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Using implicit differentiation, it is found that the rate of change of the volume of the sphere at that instant is of 1815.84 cubic centimetres per minute.

The volume of a sphere of radius r is given by:

\(V = \frac{4\pi r^3}{3}\)

Applying implicit differentiation, the rate of change is of:

\(\frac{dV}{dt} = 4\pi r^2\frac{dr}{dt}\)

In this problem, we have that \(\frac{dr}{dt} = 0.5, r = 17\), thus:

\(\frac{dV}{dt} = 4\pi (17)^2(0.5) = 1815.84\)

The rate of change of the volume of the sphere at that instant is of 1815.84 cubic centimetres per minute.

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Answer: $43

Step-by-step explanation:

total 88 + 29 = 117

117-74 = cost of concert tickets

= $43

\(\huge\text{Hey there!}\)

\(\mathsf{\dfrac{3}{4} + \dfrac{1}{2}}\)

\(\mathsf{= \dfrac{3}{4} + \dfrac{1\times2}{2\times2}}\)

\(\mathsf{= \dfrac{3}{4} + \dfrac{2}{4}}\)

\(\mathsf{= \dfrac{3 + 2}{4 + 0}}\)

\(\mathsf{= \dfrac{5}{4}}\)

\(\mathsf{= 1 \dfrac{1}{4}}\)

\(\huge\text{Therefore your answer should be:}\)

\(\huge\boxed{\mathsf{\dfrac{5}{4}\ or \ 1 \dfrac{1}{4}}}\huge\checkmark\)

\(\huge\text{Good luck on your assignment \& enjoy your day!}\)

The actual weight is 0.0042 pounds lighter than the labeled weight.

The actual weight of the chocolates is 0.3798 pounds, while the label on the bag states it should weigh 0.384 pounds. To determine how much lighter the actual weight is, we can calculate the difference between the two weights.

Subtracting the actual weight from the labeled weight, we get:

0.384 pounds - 0.3798 pounds = 0.0042 pounds.

Therefore, the actual weight is 0.0042 pounds lighter than the labeled weight.

It's important to note that this difference may seem small, but it can be significant depending on the context. Accuracy in labeling is crucial for various reasons, such as complying with regulations, providing precise information to consumers, and ensuring fair trade practices. Even minor discrepancies can impact trust and customer satisfaction.

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If the class has a mean (μ) of 60 and a standard deviation (σ) of 10, and your score is 65, then you would be above the mean but still within one standard deviation. In this case, the set of parameters μ = 60 and σ = 10 would likely give you a relatively good grade.

To determine which set of parameters would give you the best grade on the exam, we need to understand the grading scheme and how your score is compared to the rest of the class. Specifically, we need to know the mean (μ) and standard deviation (σ) of the exam scores for the entire class.

If the grading scheme involves a curve, where your score is compared to the mean and standard deviation of the class, then the set of parameters that would give you the best grade would depend on the distribution of scores in the class.

If the class has a mean (μ) of 60 and a standard deviation (σ) of 10, and your score is 65, then you would be above the mean but still within one standard deviation. In this case, the set of parameters μ = 60 and σ = 10 would likely give you a relatively good grade.

However, if the class has a different mean and standard deviation, or if the grading scheme does not involve a curve, then a different set of parameters might give you the best grade.

Without more specific information about the grading scheme and the distribution of scores in the class, it is difficult to determine the exact set of parameters that would result in the best grade for you.

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The gravitational potential energy of the stone-Earth system can be calculated before the stone is released, after it reaches the bottom of the well, and the change in gravitational potential energy during the process.

Gravitational potential energy is given by the formula PE = mgh, where m is the mass of the object, g is the acceleration due to gravity, and h is the height.

(a) Before the stone is released, it is held 11 m above the top edge of the well. The mass of the stone is 0.25 kg, and the acceleration due to gravity is approximately 9.8 m/s². Using the formula, the gravitational potential energy is calculated as PE = (0.25 kg)(9.8 m/s²)(11 m).

(b) After the stone reaches the bottom of the well, its height is 7.3 m. Using the same formula, the gravitational potential energy at this point is given by PE = (0.25 kg)(9.8 m/s²)(7.3 m).

(c) The change in gravitational potential energy can be determined by subtracting the initial potential energy from the final potential energy. The change in gravitational potential energy is equal to the gravitational potential energy after reaching the bottom of the well minus the gravitational potential energy before the stone was released.

By calculating these values, we can determine the specific numerical values for (a), (b), and (c) based on the given data.

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