how do i answer (2x) + (3x-1/2) - (5x-2/3) = 2

The total cost before the sales tax was 19.828 pounds.

For a party, Jordan purchased 3.8 pounds of turkey, 2.2 pounds of cheese, and 3.6 pounds of egg salad.

We have to determine the total cost before sales tax.

As per the question, we have prices as:

cost of turkey = 3.95 per pound

cost of egg cheese = 1.3 per pound

cost of egg salad = 0.89 per pound

The total cost of turkey = 3.8 × 3.95  = 15.01 pounds

The total cost of cheese = 2.2 × 1.3 = 2.86 pounds

The total cost of egg salad = 2.2 × 0.89 = 1.958 pounds

The total cost before sales tax = 15.01 + 1.958 +2.86

Apply the addition operation, and we get

The total cost before sales tax = 19.828 pounds

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The question seems to be incomplete the correct question would be:

Jordan bought 3.8 pounds of turkey, 2.2 pounds of cheese, and 3.6 pounds of egg salad for a party. If prices are 3.95 per pound turkey, 1.3 per pound cheese and 0.89 per pound egg salad What was the total cost before sales tax?

Answer:

comparing fossils with other engerys:

Most alternatives energy sources doesn't have as much pollution produce like fossil fuel does,

Fossil comes from underground or persevered by nature, when others can be made by renewable resources, such as Wind(windmills) , sun (solar), and water (those rolly things)

Answer:

a = 160 square units

Step-by-step explanation:

The areas of the image are 160, 22.5 and 10 square units

The area of the polygon is given as:

A =10 square unit

The area of the image of the polygon is calculated as:

\(A_k = A * k^2\)

When k = 4, we have:

\(A_4 = 10 * 4^2\)

\(A_4 = 160\)

When k = 1.5, we have:

\(A_{1.5} = 10 * 1.5^2\)

\(A_{1.5} = 22.5\)

When k = 1, we have:

\(A_{1} = 10 * 1^2\)

\(A_{1} =10\)

Hence, the areas of the image are 160, 22.5 and 10 square units

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Answer:

\(\frac{-2}{3}\)

Step-by-step explanation:

First, change the mixed numbers to improper fractions to make the solving process easier.

1 2/3 = 5/3

2 1/3 = 7/3

Now, subtract.

5/3 - 7/3 = -2/3

Answer: -2/3

hope this helps!! p.s. i really need brainliest :)

Answer:

7

Step-by-step explanation:

sorry wrong answer i don't know how to remove

Step-by-step explanation:

Pythagorean theorem

Answer:

x = 25

Step-by-step explanation:

Since ∠ A = ∠ B then the triangle is isosceles and AC = BC , that is

4x - 30 = 2x + 20 ( subtract 2x from both sides )

2x - 30 = 20 ( add 30 to both sides )

2x = 50 ( divide both sides by 2 )

x = 25

Step-by-step explanation:

x=11

hope it helps.

comment me if im correct then i will post step by step

and sorry, if im incorrect.

Answer:

12x I think

Step-by-step explanation:

this is very confusing.

2x² + 2x - 4 = 2x ( x + 1 - 2 )

4x + 2x - 4

8x-4

4x = 2x ( x + 1 - 2)

8x + 2 - 2

8x + 4x

= 12x. I think 12x is the correct factor.

We can use Pythagoras's theorem expression:

Where h is the hypotenuse of the triangle and a and b are its legs, in this case, we have the value of the length of one leg and the value of the length of the hypotenuse, then we can solve for the other leg length like this:

Now let's replace the values from the figure, b is x, h is 10 and a is 6

Then, x equals 8

The function \(f:V_1\rightarrow V_2\)  is one - one and onto and both the graphs are isomorphic. So, the statement is True.

In mathematics, two structures are said to be isomorphic if they have the same mathematical structure, even if their elements and operations may be named or represented differently. This means that they have the same pattern of relationships between their elements and that any statement that is true in one structure is also true in the other.

Isomorphism is a fundamental concept in many branches of mathematics, including abstract algebra, topology, and graph theory. It is often used to simplify problems by reducing them to a known isomorphic structure. For example, in graph theory, two graphs are isomorphic if they have the same number of vertices, edges, and connectivity, which allows one to study the properties of a graph by studying a simpler isomorphic graph.

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Complete Question:-

Consider the following pair of graphs: The graphs are isomorphic. (You must provide an answer before moving to the next part.) True or False

Answer:

x intercept = (2,0)

y intercept = (0,6)

Answer:

x intercept=(2,0)

y intercept=(0,6)

Step-by-step explanation:

when finding the x intercept you multiply the y by zero so you are just left with the x. then you would divide six and 3x by 3 so that you just get x, and you would get that x=2.

You do the same for the y intercept except you multiply x by xero, so you would be left with y=6.

answer:

x=-2

Step-by-step explanation:

my suggestion for this problem and all problems like it would to turn everything into 6ths. 1/3 would become 2/6. and 2 would become 12/6. leave the negatives. now you'll add 2/6 to -12/6. which will equal 10/6. divide 10/6 by 5/6 and youll get -2. x=-2

Answer:

x = -2

Step-by-step explanation:

● (5/6)x - (1/3) = -2

Add (1/3) to both sides

● (5/6)x - (1/3) + (1/3) = -2 + (1/3)

-2 is (-6/3)

● (5/6)x = (-6/3) + (1/3)

● (5/6)x = -5/3

Move 5/6 to the other side and switch the places of 5 and 6

● x = (-5/3) × (6/5)

● x = -30/15

● x = -2

The equation that represents the situation in which case the percent of successful free throws is 75% during the game is; ( 8 + x ) = 0.75 ( 15 + x ).

It follows from the task content that the equation which represents the situation in which case the percent of successful free throws rises to 75% is to be determined.

As evident in the task content; Initially, Shaq made 8 out of 15 free throws he attempted.

Therefore, let the number of consecutive free throws he has to make to raise the success rate to 75% be; x.

Therefore, it follows from percent proportion that;

( 8 + x ) / ( 15 + x ) = 75 / 100

The simplified equation which represents the required situation is therefore;

( 8 + x ) = 0.75 ( 15 + x ).

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Answer:

△ABCtriangle and △CDAtriangle, by side-angle-side

Step-by-step explanation:

The amount of money in the account after 18 years will be $449.5.  

Given is a parallelogram as shown in the image.

In order to prove ABCD as a parallelogram, we can prove ΔABE and ΔCDE congruent to each other by Angle - Angle - Side congruent property as -

∠BAE = ∠DCE     {Alt. int. angles}

∠ABE = ∠CDE     {Alt. int. angles}

AB = CD    {Given}

Therefore, she can prove ABCD as a parallelogram by proving -

ΔABE ≅ ΔCDE using AAS criteria.

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Answer:

m<LMR =28°

Step-by-step explanation:

By subtracting the total line measure (178) from m<RMN you get the measurement of LMR. So basically its 178-150=28

Answer:

\({ \tt{f(x) = 2}} \\ when \: y = 2 \\ { \bf{x = - 0.5}}\)

The expression for the area of triangle ABC, given ∠A = 48°, ∠C = 67°, and AC = 15, is 83.57 square units.

The area of a triangle can be calculated using the following formula:

Area = (1/2)×AB ×AC ×sin(C)

We are given the angles ∠A = 48°, ∠C = 67°, and the side AC = 15.

To find the area, we need to find the length of side AB and the sine of angle C.

By law of sines

AB/sin(A) = AC/sin(C)

Rearranging the equation, we get:

AB = (AC × sin(A))/sin(C)

Substituting the given values, we have:

AB = (15 × sin(48°))/sin(67°)

AB = (15 × 0.7431) / 0.9217

AB = 12.09

Now that we have the length of side AB, we can substitute it into the formula for the area:

Area = (1/2)× AB × AC × sin(C)

Substituting the values AB = 12.09, AC = 15, and sin(C) = 0.9217:

Area = (1/2) × 12.09 × 15 × 0.9217

Area = 83.57

Therefore, the expression for the area of triangle ABC, given ∠A = 48°, ∠C = 67°, and AC = 15, is 83.57 square units.

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The (i,j)-th entry of \(M^T M\) is the same as the (j,i)-th entry of \((M^T)^T M^T\), which is just the (j,i)-th entry of\(M^T M\), \(M^T M\) is symmetric, g(x) is not positive-definite.

(a) The transpose of a matrix is obtained by interchanging its rows and columns. Therefore, for any matrix \(M, (M^T)^T = M\).

Now, let's consider the product \(M^T M\). The (i,j)-th entry of this product is obtained by taking the dot product of the i-th row of \(M^T\) and the j-th column of M. But the j-th column of M is just the j-th row of\(M^T\), so we are taking the dot product of two rows of\(M^T\). Therefore, the (i,j)-th entry of \(M^T M\) is the same as the (j,i)-th entry of \((M^T)^T M^T\), which is just the (j,i)-th entry of\(M^T M\). Therefore, \(M^T M\) is symmetric.

(b) We have \(g(x) = x^T (M^T M) x\). Let's expand this product:

\(g(x) = [x^T (M^T)][Mx]\\= [(Mx)^T][Mx]\\= ||Mx||^2\)

Therefore, \(g(x) = ||Mx||^2\).

Now, let's consider \(q(x) = g(x) = ||Mx||^2\). We want to show that q(x) is positive-semidefinite, which means we need to show that q(x) is non-negative for all x. This is easy to see since ||Mx||^2 is the squared length of the vector Mx, which is always non-negative.

(c) To show that q(x) is positive-definite exactly when N(M) = {0}, we need to show two things:

(i) If N(M) = {0}, then q(x) is positive-definite.

(ii) If N(M) is not equal to {0}, then q(x) is not positive-definite.

(i) Suppose N(M) = {0}. This means that the only vector that satisfies Mx = 0 is the zero vector. Now suppose that \(g(x) = ||Mx||^2 = 0\). This implies that Mx = 0, since the length of a vector is zero if and only if the vector itself is zero. But we just showed that the only vector that satisfies Mx = 0 is the zero vector, so x must be the zero vector. Therefore, \(g(x) = ||Mx||^2 = 0\) if and only if x = 0, which means that g(x) is positive-definite.

(ii) Now suppose that N(M) is not equal to {0}. This means that there exists a non-zero vector v such that Mv = 0. Let's consider the vector x = v/||v||. Then ||x|| = 1 and Mx = M(v/||v||) = (1/||v||)Mv = 0. Therefore, \(g(x) = ||Mx||^2 = 0\), even though x is not the zero vector. This means that g(x) is not positive-definite.

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The weights of football players on each of these teams is same or different is given by,

Null hypothesis is H₀: μ₁ = μ₂ = μ₃ = μ₄ = μ₅.

Alternate hypothesis is Hₐ: At least one μₓ is different from the others.

ANOVA analysis is input weight→ separate column →Data tab →Data Analysis→ Single Factor→ click ok→ dialog box input range → output range → click ok.

Value of test statistic is the ratio between-group variance to within-group variance.

The  p-value is associated to calculate the test statistic under the null hypothesis using the sampling distribution.

X₁ = weights of players of Dallas Cowboys

X₂ = weights of players of Green Bay Packers

X₃ = weights of players of Denver Broncos

X₄ = weights of players of Miami Dolphins

X₅= weights of players of San Francisco Forty Niners

Significant level = 5%

                          = 0.05

Null hypothesis is the mean weight of football players is same for all teams,

H₀: μ₁ = μ₂ = μ₃ = μ₄ = μ₅

The alternate hypothesis is ,

At least one mean weight is different.

Hₐ: At least one μₓ is different from the others.

To perform an ANOVA analysis in Excel,

Input the weights data for each of the team into a separate column.

Now, go to the Data tab and click on Data Analysis.

Select ANOVA Single Factor from the list and click ok.

In the ANOVA dialog box,

Input the range of the weights data for all teams.

The Alpha level 0.05 and the output range where the results to be displayed.

Click ok.

Value of the test statistic F-value is displayed in the ANOVA output.

It represents the ratio between-group variance to the within-group variance.

The F-value is used to determine whether the means of the groups are significantly different.

The p-value associated with the test statistic is also displayed in the ANOVA output.

It represents the probability of obtaining an F-value as extreme as the one calculated.

Assume that the null hypothesis is true.

If the p-value is less than the significance level 0.05.

Reject the null hypothesis .

Conclude that there is evidence of a significant difference in the mean weights of football players among the teams.

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Answer:

4

Step-by-step explanation:

Let the sum of the numbers of the set be x.

The mean of the set will be \(\frac{x}{15}\).

If one entry is increased by 60, that means the new sum of the numbers of the set will be x + 60. Therefore, the new mean will be \(\frac{x+60}{15}\).

We can rewrite \(\frac{x+60}{15}\) as \(\frac{x}{15}\) + \(\frac{60}{15}\) = \(\frac{x}{15}\) + 4.

So:

Original mean = \(\frac{x}{15}\)

New mean = \(\frac{x}{15}\) + 4

As you can see, the new mean is 4 more than the original mean.

When ab = 0, the zero-product property tells us that at least one of the factors (a or b) must be zero in order for the equation to hold true.

We are given that ab = 0, where a and b are variables or numbers.

According to the zero-product property, if the product of two factors is equal to zero, then at least one of the factors must be zero.

In our case, we have ab = 0. This means that the product of a and b is equal to zero.

To satisfy the condition ab = 0, at least one of the factors (a or b) must be zero. If either a or b is zero, then when multiplied with the other factor, the product will be zero.

It is also possible for both a and b to be zero, as anything multiplied by zero gives zero.

Therefore, based on the zero-product property, we can infer that either a = 0 or b = 0 when ab = 0.

In summary, when ab = 0, the zero-product property tells us that at least one of the factors (a or b) must be zero in order for the equation to hold true.

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Answer:

C. x  >  6

Step-by-step explanation:

Solve for  x  by simplifying both sides of the inequality, then isolating the variable.

Answer:

is just x>6

Step-by-step explanation:

-8< x -14

add 14 to both sides and it will end up as

6<x

then just flip it

x>6

The values of a, h and k on the function are given as follows:

The meaning of the transformations is given as follows:

A translation happens when either a figure or a function is moved horizontally or vertically on the coordinate plane.

The four translation rules for functions are defined as follows:

The parent function in this problem is given as follows:

y = 1/x.

Hence the meaning of the transformations is given as follows:

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Answer:

cool cool

Step-by-step explanation:

cool

The correct Z-scores for which 90% of the distribution's area lies between -z and Z are D) (-1.645, 1.645).

The Z-score is a measure of how many standard deviations a particular value is from the mean of a distribution. In a standard normal distribution, which has a mean of 0 and a standard deviation of 1, the Z-score represents the number of standard deviations a value is away from the mean.

To find the Z-scores for which 90% of the distribution's area lies between -z and Z, we need to find the Z-scores that correspond to the 5th and 95th percentiles of the standard normal distribution.

Since the distribution is symmetric, we can find the Z-scores for the lower and upper tails of the distribution and use them to determine the range between -z and Z.

Using a standard normal distribution table or a Z-table calculator, we can find that the Z-score corresponding to the 5th percentile (i.e., the value of -z) is approximately -1.645, and the Z-score corresponding to the 95th percentile (i.e., the value of Z) is also approximately 1.645.

Therefore, the correct Z-scores for which 90% of the distribution's area lies between -z and Z are (-1.645, 1.645).

Note: The other options given in the question (A) (-1.96, 1.96), (B) (-2.33, 2.33), and (C) (-0.99, 0.99) do not correspond to the Z-scores for which 90% of the distribution's area lies between -z and Z. Option (D) (-1.645, 1.645) is the correct answer.

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To determine which data set will follow the simple linear regression (SLR) model, we need to look for a relationship between the independent variable (xi) and the response variable (yi).

The SLR model assumes that there is a linear relationship between the two variables, meaning that as the value of xi increases or decreases, the value of yi also increases or decreases in a straight line.
Therefore, the data set that shows a clear linear relationship between xi and yi is most likely to follow the SLR model. We can use a scatter plot to visualize the relationship between the two variables and determine if it is linear.
If the scatter plot shows a roughly straight line relationship between xi and yi, then the data set is likely to follow the SLR model. On the other hand, if the scatter plot shows a curved or non-linear relationship between xi and yi, then the data set is not likely to follow the SLR model.
So, in summary, the data set that shows a clear linear relationship between xi and yi is the one that is most likely to follow the simple linear regression (SLR) model.

Simple linear regression (SLR), it is important to note that SLR is a method used to model the relationship between a response variable (yi) and an independent variable (observation xi). In this model, the response variable yi is a linear function of the independent variable xi.
Since you have not provided specific data sets to choose from, I am unable to directly indicate which data set will follow this model. However, to identify a data set that would likely follow the simple linear regression model, look for one that exhibits a linear relationship between the independent variable (xi) and the response variable (yi). In such a data set, you would observe a pattern where, as xi increases or decreases, yi would also consistently increase or decrease in a relatively straight line.
To summarize, to determine if a data set follows the simple linear regression model, check if it exhibits a linear relationship between the independent variable (observation xi) and the response variable (yi).

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Answer:

The answer is "\(153.86 \ in^2\)"

Step-by-step explanation:

The circular light which fits around rather than is sufficiently large for fire a camera is indeed a ring light. The ring light provides light with very little darkness, as the bright light is very close to a lens's vertical system. It's also usually called glamour or brightness of beauty.

Let's Each light surface area has \(38.465\ in^2\).

Therefore, the total area of four lights is \(38.465 \times 4= 153.86\ in^2\).

Answer:

A Graph = C ; B Graph = D ; C Graph = B ; D Graph = A

Step-by-step explanation:

Answer:

a. = C.

b. = D.

c. = B.

d. = A.

Step-by-step explanation:

The number of sides the regular polygon has is: B. 8.

A polygon with an n-side have a sum of interior angles which can be determined using the formula: (n - 2)180, where n is the number of sides of the regular polygon.

Thus, to find the measure of each interior angle of the polygon, we have: interior angle of a polygon = sum of interior angles ÷ number of sides.

Given the following information about the regular polygon:

Interior angle of the regular polygon = 135 degrees.

Plug this into the given formula for finding the interior angle of a polygon:

135 = (n - 2)180/n

Multiply n by both sides of the equation

135 × n = (n - 2)180/n × n

135n = (n - 2)180

Open the bracket

135n = 180n - 360

Subtract both sides by 180n

135n - 180n = 180n - 360 - 180n

-45n = -360

Divide both sides by -45

-45n/-45 = -360/-45

n = 8

Thus, the number of sides that the regular polygon has is: B. 8 sides.

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Answer:

(4m - 5m) (4m + 5m)

16m + 20m - 20m - 25m

36 m -45m

=-9m