What expressions are equivalent to 8x+72

Answers

Answer 1
If you want it in distributive property it could be 4(2x+18)

Related Questions

Someone help I’ll give so many points

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Answer:

Angles 4 and 8 do not equal 180 degrees (supplementary), therefore letter A is the answer.

Step-by-step explanation:

Looking at the other angles they all equal 180 degrees except for A which would appear to equal more than 180.

Angles 4 and 8 do not equal 180 degrees
(supplementary), therefore letter A is the answer.

What is the mode of 3,5,6,7,9,6,8

Answers

Answer:

Step-by-step explanation:

it is 6 because it is there 2 times

what statistical test should i take if i am interested in studying if college major is related to living location preference

Answers

If you are interested in studying whether college major is related to living location preference, the appropriate statistical test to use is the chi-square test. This is because both the college major and living location preference are categorical variables, and the chi-square test is used to analyze the association between two categorical variables.

To perform the chi-square test, you will need to create a contingency table that displays the frequency of individuals in each combination of college major and living location preference. You can then calculate the expected frequencies under the null hypothesis of independence, which assumes that there is no association between the two variables.

The chi-square test statistic is calculated by comparing the observed frequencies to the expected frequencies, and it measures the degree of association between the two variables. If the chi-square test statistic is large enough, it indicates that there is a significant relationship between college major and living location preference.

Overall, the chi-square test is a powerful statistical tool for analyzing the relationship between categorical variables, and it can provide valuable insights into the factors that influence living location preference among college students.

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HELP ASAPPPPPPPPPPPPPPPPPPPPP

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it’s d! hope this helps! :)

Paula is a biologist who is conducting a study about a species of butterfly called the Common Buckeye. She estimates that in the spring, the number of butterflies living in her study area will increase rapidly. For every butterfly in the area, 2 new butterflies hatch each week. If approximately 50 butterflies were counted during the first week of the season, how many butterflies will there be the twelfth week?

Answers

During the twelfth week, there will be about 204,800 butterflies in the research area.

To solve the problem, we can use the formula:

[tex]N = N_0 * (2^t)[/tex]

Where:

N is the number of butterflies after t weeks

[tex]N_0[/tex] is the initial number of butterflies

t is the number of weeks

We are given that N0 = 50 and t = 12. We can substitute these values into the formula and solve for N:

[tex]N = 50 * (2^{12})\\\\N = 50 * 4096\\\\N = 204,800[/tex]

Therefore, there will be approximately 204,800 butterflies in the study area during the twelfth week.

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recall that on the act math section, the scores are graded to follow the normal model with a mean of about 18.5 and a standard deviation of about 5.75. based on this model, what is the cutoff score to be in the bottom 6% of all act math scores?

Answers

The cutoff score to be in the bottom 6% of all ACT math scores is about 27.71. To find the cutoff score to be in the bottom 6% of all ACT math scores, we need to use the normal distribution table.

First, we need to convert the score to a z-score using the formula: z = (x - μ) / σ, where x is the score, μ is the mean, and σ is the standard deviation.
For the bottom 6% of scores, we need to find the z-score that corresponds to a cumulative probability of 0.06. Looking at the normal distribution table, we find that the closest value is 1.55.
So, we can solve for the score by rearranging the formula as x = z * σ + μ. Plugging in the values, we get:
x = 1.55 * 5.75 + 18.5 = 27.7125
It's important to note that this calculation is based on the assumption that the distribution of ACT math scores follows the normal model with a mean of about 18.5 and a standard deviation of about 5.75. In reality, the distribution may not be exactly normal, and the mean and standard deviation may vary depending on the sample of test takers.

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rue or false: if the eigenvalues of a are 2, 2, 5, then a is a) invertible; b) diagonalizable; c) not diagonalizable.

Answers

The eigenvalues of a are 2, 2, 5, then a is invertible matrix .

The eigenvalues are 2, 2, 5.

(A) First check the matrix is certainly invertible.

The matrix is invertible when the product of eigenvalues does not equal to zero.

invertible of A = 2*2*5

invertible of A = 20 ≠ zero.

So the matrix is certainly invertible.

(B) Now we check the matrix is certainly diagonalizable.

We note that the eigen value 2 has an algebraic multiplicity of 2 (number of repetitions), but we are unsure if the accompanying eigen vectors likewise have a count of two (geometric multiplicity)

The sum of the algebraic multiplicities must equal the sum of the geometric multiplicities in order for A to be diagonalizable.

In this instance, there is no evidence to support the geometric multiplicity of the eigenvalue 2. Therefore, we are unable to affirm that A is diagonalizable

So A can not be diagonalizable.

(C) Now we check the matrix is certainly not diagonalizable.

If the homogeneous equation from (A-⋋I)x=0 when the eigen value ⋋=2 is substituted x+y+z=0, then the solution set is x=-k-m where y=k, z=m are the parameters.

So it can be written as

[tex]\left[\begin{array}{ccc}x\\y\\z\end{array}\right] = k\left[\begin{array}{ccc}-1\\1\\0\end{array}\right] + m \left[\begin{array}{ccc}-1\\0\\1\end{array}\right][/tex]

Putting k=1 and m=1, then the corresponding eigen vectors for ⋋=2 are  

[tex]\left[\begin{array}{ccc}-1\\1\\0\end{array}\right] , \left[\begin{array}{ccc}-1\\0\\1\end{array}\right][/tex]

So the geometric multiplicity of the eigen value ⋋=2 is 2.

The algebraic multiplicity = Geometric multiplicity we can see the given matrix A is diagonalizable.

So the statement is false.

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Data Completion. Determine a number that must be added to make each of the following a perfect square
trinomial.
26. x² + 3x +
27. t² + 10t +.
28. x² - 30x +
29. r²- 18r+.
30. x² - 10x +
31.
h²h+
2
32. 3x² + 3x +
33. 2x² -5x +_
34. s² + 6s+
35. x² - 12x +
_I

Answers

26. To make x² + 3x + ___ a perfect square trinomial, we need to add (3/2)² = 2.25. So x² + 3x + 2.25 is a perfect square trinomial.

27. To make t² + 10t + ___ a perfect square trinomial, we need to add (10/2)² = 25. So t² + 10t + 25 is a perfect square trinomial.

28. To make x² - 30x + ___ a perfect square trinomial, we need to add (30/2)² = 225. So x² - 30x + 225 is a perfect square trinomial.

29. To make r² - 18r + ___ a perfect square trinomial, we need to add (18/2)² = 81. So r² - 18r + 81 is a perfect square trinomial.

30. To make x² - 10x + ___ a perfect square trinomial, we need to add (10/2)² = 25. So x² - 10x + 25 is a perfect square trinomial.

31. To make h² + (h/2) + ___ a perfect square trinomial, we need to add (1/2)² = 0.25. So h² + (h/2) + 0.25 is a perfect square trinomial.

32. To make 3x² + 3x + ___ a perfect square trinomial, we need to add (3/2)² = 2.25. So 3x² + 3x + 2.25 is a perfect square trinomial.

33. To make 2x² - 5x + ___ a perfect square trinomial, we need to add (5/2)² = 6.25. So 2x² - 5x + 6.25 is a perfect square trinomial.

34. To make s² + 6s + ___ a perfect square trinomial, we need to add (6/2)² = 9. So s² + 6s + 9 is a perfect square trinomial.

35. To make x² - 12x + ___ a perfect square trinomial, we need to add (12/2)² = 36. So x² - 12x + 36 is a perfect square trinomial.

The accompanying (slightly modified) ANOVA table appeared in the article "An Experimental Test of Mate Defense in an Iguanid Lizard" (Ecology 119911: 1218-1224). The response variable was territory size. Source of Variation Sum of Squares df ex Interaction Error. 614 1. 754. 146 5. 624 80 a. How many age classes were there? b. How many observations were made for each age-sex combination? W hat conclusions can b tors affect the respon C. E drawn about how the fac- se variable

Answers

a. The ANOVA table does not provide any information about the number of age classes. Therefore, it cannot be determined from the given table how many age classes were there.

b. The ANOVA table does not provide any information about the age-sex combination or the number of observations for each combination. Therefore, it cannot be determined from the given table how many observations were made for each age-sex combination.

c. The ANOVA table provides information about the sources of variation and their respective sum of squares, degrees of freedom, and mean squares. From this table, it can be concluded that the interaction between factors and error have a significant effect on the response variable, territory size. However, the table does not provide any information about the effect size or the direction of the effect. To draw any conclusions about the relationship between the factors and the response variable, further analysis such as post-hoc tests or effect size calculations would be required.

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Anyone who answers will get Brainly

Answers

Answer:

Line A slope = -1

Line B Slope =0.5

Double? That wouldn't be correct but your teacher may be not smart.

What was given:

The equation for line A: y=-x-2

Values from Line B: (In the picture below)

Step 1:

Find the slope for y= -x-2

[tex]y=-x-2,[/tex]

[tex]y+x= -2[/tex]

[tex]m= -1[/tex]

The slope for y= -x-2 is m= -1

Step 2:

I promise I will finish this once im done with my dinner :)

Find the axis of symmetry of the function `f\left(x\right)=\left(x-6\right)\left(x+3\right)`.

Answers

The axis of symmetry for the function f(x) = (x - 6)(x + 3) is x = 1.5.

To find the axis of symmetry of the function f(x) = (x - 6)(x + 3), we need to determine the x-value of the vertex of the parabola represented by this function.

The axis of symmetry is given by the equation x = -b / (2a), where a and b are the coefficients of the quadratic term and the linear term, respectively, in the general form of the quadratic function [tex]ax^2 + bx + c[/tex].

In this case, the quadratic term coefficient (a) is 1 and the linear term coefficient (b) is -3, so we can substitute these values into the formula:

x = -(-3) / (2 × 1)

x = 3 / 2

x = 1.5

The axis of symmetry for the function f(x) = (x - 6)(x + 3) is x = 1.5.

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The scale used to measure the model of a basketball court was 1 inch : 25 feet. If the actual court is 100 feet, what is the length of the model? If the actual width of the model is 40 feet, what is the actual width?

A. Length: 20.5 ft Width: 6 ft
B. Length: 6 ft Width: 20.5 ft
C. Length: 200.5 ft Width: 60 ft
D. Length: .205 ft Width: .6 ft

Answers

The scale used to measure the model of a basketball court is 1 inch : 25 feet. If the actual court is 100 feet, we can calculate the length of the model by using the scale.

Length of the model = (Length of the actual court) / (Scale)
Length of the model = 100 ft / 25
Length of the model = 4 ft

Therefore, the length of the model is 4 feet.

Similarly, if the actual width of the model is 40 feet, we can calculate the actual width by using the scale.

Width of the actual court = (Width of the model) * (Scale)
Width of the actual court = 40 ft * 25
Width of the actual court = 1000 ft

Therefore, the actual width of the court is 1000 feet.

The correct answer is:
A. Length: 4 ft Width: 1000 ft

three airlines serve a small town in ohio. airline a has 53% of all scheduled flights, airline b has 32% and airline c has the remaining 15%. their on-time rates are 82%, 64%, and 36%, respectively. a flight just left on-time. what is the probability that it was a flight of airline a?

Answers

The probability that it was a flight of airline A is equal to approximately 0.6268, or about 62.68%

Let A, B, and C be the events that a flight is operated by airlines A, B, and C, respectively.

And let O be the event that a flight is on-time.

The conditional probability of A given O is equal to P(A|O).

Using Bayes' theorem, we have,

P(A|O) = P(O|A) × P(A) / P(O)

where P(O|A) is the probability that a flight of airline A is on-time.

P(A) is the probability that a flight is operated by airline A.

And P(O) is the probability that a flight is on-time regardless of which airline operates it.

Calculate these probabilities as follows,

P(O|A) = 0.82, the on-time rate of airline A

P(A) = 0.53, the proportion of flights operated by airline A

P(O) = P(O|A) × P(A) + P(O|B) × P(B) + P(O|C) × P(C)

       = 0.82 × 0.53 + 0.64 × 0.32 + 0.36 × 0.15

       = 0.6934

Plugging in these values, we get,

P(A|O) = 0.82 × 0.53 / 0.6934

Simplifying it,

P(A|O) = 0.6268

Therefore, the probability that the on-time flight that just left was operated by airline A is approximately 0.6268, or about 62.68%.

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First, find the function begin mathsize 18px style N left parenthesis x comma y right parenthesis end style such that the following differential equationbegin mathsize 18px style open parentheses 2 x squared y plus 2 e to the power of 2 x end exponent y squared plus 2 x close parentheses d x plus N left parenthesis x comma y right parenthesis d y equals 0 end styleis exact and begin mathsize 18px style N left parenthesis 0 comma y right parenthesis equals 3 y end style. Which of the following is the general solution of the resulting exact differential equation?

Answers

The general solution of the resulting exact differential equation is y^2 + e^(2x) = C.

To find the function N(x,y), we need to use the condition that the differential equation is exact, which means that there exists a function f(x,y) such that:

df/dx = 2x^2y + 2e^(2x)y^2 + 2x

df/dy = N(x,y)

Taking the partial derivative of df/dx with respect to y and df/dy with respect to x, we get:

∂(2x^2y + 2e^(2x)y^2 + 2x)/∂y = 2x^2 + 4e^(2x)y

∂N(x,y)/∂x = 2x^2 + 4e^(2x)y

Since these partial derivatives are equal, N(x,y) can be found by integrating one of them with respect to x:

N(x,y) = ∫(2x^2 + 4e^(2x)y) dx = (2/3)x^3 + 2e^(2x)yx + C(y)

To find C(y), we use the condition that N(0,y) = 3y, which gives:

C(y) = N(0,y) - (2/3)0^3 = 3y

Substituting this expression for C(y) into the equation for N(x,y), we get:

N(x,y) = (2/3)x^3 + 2e^(2x)yx + 3y

Next, we need to find the general solution of the resulting exact differential equation.

Since the equation is exact, we know that the solution can be obtained by integrating f(x,y) = C, where C is a constant. Using the function N(x,y) that we found, we have:

df/dx = 2x^2y + 2e^(2x)y^2 + 2x

f(x,y) = ∫(2x^2y + 2e^(2x)y^2 + 2x) dx = (2/3)x^3y + 2e^(2x)y^2 + x^2 + g(y)

Taking the partial derivative of f(x,y) with respect to y and equating it to N(x,y), we get:

∂f(x,y)/∂y = (4e^(2x)y + g'(y)) = (2/3)x^3 + 2e^(2x)y + 3y

Solving for g'(y), we get:

g'(y) = (2/3)x^3 + 4e^(2x)y + 3y

Integrating g'(y) with respect to y, we get:

g(y) = (1/3)x^3y + 2e^(2x)y^2 + (3/2)y^2 + C

Substituting this expression for g(y) into the equation for f(x,y), we get:

f(x,y) = (2/3)x^3y + 2e^(2x)y^2 + x^2 + (1/3)x^3y + 2e^(2x)y^2 + (3/2)y^2 + C

Simplifying this expression, we get:

f(x,y) = (4/3)x^3y + 4e^(2x)y^2 + x^2 + (3/2)y^2 + C

Therefore, the general solution of the exact differential equation is: (4x^2y + 2e^(2x)y^2 + 3y^2 = C)

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Choose a Strategy. In a single elimination tournament a team plays until it loses. Eight teams play in a tournament. How many games must be played?

Answers

In a single elimination tournament, a team plays until it loses. Therefore, for a tournament with 8 teams, 7 games must be played. The number of games in a single elimination tournament equals the number of teams minus 1.

Hope this helps! Have a great day. :)

for f(x, y, z) = p(x, y, z)i q(x, y, z)j r(x, y, z)k = 8y2z3i 16xyz3j 24xy2z2k, we have the following. ∂r ∂y − ∂q ∂z = ∂p ∂z − ∂r ∂x = ∂q ∂x − ∂p ∂y =

Answers

The three expressions ∂r/∂y − ∂q/∂z, ∂p/∂z − ∂r/∂x, and ∂q/∂x − ∂p/∂y represent the components of the curl of the vector field F. So, the curl of the given vector field F can be expressed as Curl(F) = (∂r/∂y − ∂q/∂z)i + (∂p/∂z − ∂r/∂x)j + (∂q/∂x − ∂p/∂y)k.

Using the given values of p, q, and r, we can find the partial derivatives of each component with respect to x, y, and z. Then, we can substitute these values into the expression for the curl to obtain the final answer. So, evaluating the partial derivatives and substituting into the expression for the curl gives Curl(F) = (-48xyz)i + (24x^2z - 24xy^2)j + (16xy - 16yz^2)k.

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please help:
find the value of x if RSTV∼WXYZ​

Answers

Answer:

x = 21

Step-by-step explanation:

if RSTV ≈ WXYZ

then 5x - 2 = 103

5x = 103 + 2 = 105

x = 105/5 = 21

a moving truck company salesperson rents moving trucks that have enclosed truck beds in the shape of right rectangular prisms. if a truck bed has dimensions of by by what is the volume of the truck bed?

Answers

The volume of the truck bed is simply the product of its three dimensions, which are given as length, width, and height. Therefore, the volume of the truck bed can be calculated as:

Volume = length x width x height

or

Volume = b x w x h

where b, w, and h represent the dimensions of the truck bed in feet, meters, or any other unit of length.

In summary, the volume of a right rectangular prism, such as a moving truck bed, can be obtained by multiplying the length, width, and height of the prism.

To provide further explanation, a right rectangular prism is a three-dimensional solid figure with six rectangular faces. The faces opposite each other are congruent, and the parallel faces have equal dimensions. The length, width, and height of the prism are perpendicular to each other, and the product of these dimensions gives the volume of the prism. In the context of a moving truck, the volume of the truck bed determines the amount of space available for loading and transporting goods.

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You earn $15 per hour plus a commission equal to $x$ percent of your sales as a cell phone sales representative.

What is your commission percentage ( x ) if you work 8 hours with sales of $1400 worth of merchandise and your total earnings for the day is $176?

Answers

The calculated value of the commission percentage is 4%

Calculating the commission percentage

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

Hourly rate = $15

Commission = x%

So, the function of the earnings is

f(x) = x% * 1400 + Hourly rate * Number of hours

This gives

When the total earning is 176, we have

x% * 1400 + 15 * 8 = 176

This gives

x% * 1400 + 120 = 176

So, we have

x% * 1400= 56

Divide

x = 4

Hence, the commission percentage is 4%

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3) Error Analysis Time:
Four students rewrote the equation 12x + 3y = 9 into slope-intercept form. Determine
who did it correctly. If the student did it incorrectly, explain the mistake.
Molly.
12x+3y=9
JARED
12x + 3y=9
3y = 9 - 12x
y = 3-4x
Ali
12x + 3y = 9
4x + y = 3
10/13/2015 -4x+3
Jared: correct or incorrect
Explain:
Molly. correct or incorrect
Explain:
Ali: correct or incorrect
Explain:
Mia: correct or incorrect
Explain:
Mia
3y=9 - 12x
y = 3-12x
12x+3y=9
Geometry CP
3y=9-12x
y = 3-4x
y = 4x - 3

Answers

Molly is the only student who rewrote the equation correctly into slope-intercept form. Her equation is:

y = -4x + 3

Jared, Ali, and Mia made mistakes in their simplifications by not dividing the entire equation by 3 when isolating the term with y.

Let's analyze each student's attempt to rewrite the equation 12x + 3y = 9 into slope-intercept form.

Jared:

Jared's attempt is incorrect. He started correctly by isolating the term with y, but he made a mistake in simplifying it. Instead of dividing the entire equation by 3, he only divided the constant term. The correct simplification would be:

3y = 9 - 12x

y = (-12/3)x + 3

y = -4x + 3

Molly:

Molly's attempt is correct. She correctly isolated the term with y and divided the entire equation by 3 to solve for y. The simplified equation is:

y = (-12/3)x + 3

y = -4x + 3

Ali:

Ali's attempt is incorrect. He attempted to move the term with x to the other side of the equation but made a mistake in the process. Instead of subtracting 12x from both sides, he mistakenly subtracted 4x from both sides. The correct simplification would be:

12x + 3y = 9

3y = 9 - 12x

y = (-12/3)x + 3

y = -4x + 3

Mia:

Mia's attempt is incorrect. She made the same mistake as Jared by dividing only the constant term by 3. The correct simplification would be:

3y = 9 - 12x

y = (-12/3)x + 3

y = -4x + 3

From the analysis, we can see that Molly is the only student who rewrote the equation correctly into slope-intercept form. Her equation is:

y = -4x + 3

Jared, Ali, and Mia made mistakes in their simplifications by not dividing the entire equation by 3 when isolating the term with y.

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HELP NEEDED FAST PLEASE

Answers

The measure of the angle m∠LJK subtended by the arc LK at the circumference is equal to 42°

What is angle subtended by an arc

The angle subtended by an arc of a circle at it's center is twice the angle it substends anywhere on the circles circumference. Also the arc measure and the angle it subtends at the center of the circle are directly proportional.

arc LK = 2(m∠LJK)

Also arc LK = 84°

2(m∠LJK) = 84°

m∠LJK = 84/2 {divide through by 2}

m∠LJK = 42°

Therefore, the measure of the angle m∠LJK subtended by the arc LK at the circumference is equal to 27°

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Which graph shows the line of best fit for the data?

Answers

Answer:

The last one, bottom right corner

Find the standard form of the equation of the hyperbola with the given characteristics.a. Vertices: (−1, 1), (3, 1); foci: (−4, 1), (6, 1)b. Vertices: (1, −4), (1, −8); passes through the point (5, −12)c. Vertices: (-6,2), (0,2); asymptotes: y is equal to x plus 5, y is equal to -x-1

Answers

a) The standard form of the equation for this hyperbola is (x-1)²/4 - (y-1)²/21 = 1.

b) The standard form of the equation for this hyperbola is (y+6)²/4 - (x-1)²/3 = 1.

c) The standard form of the equation for this hyperbola is (x+3)²/5 - (y-2)²/6 = 1.

a. To find the standard form of the equation of a hyperbola with the given vertices and foci, we need to first determine the center of the hyperbola. The center of the hyperbola is the midpoint between the two vertices, which in this case is (1, 1).

In this case, a = 2. To find the value of b, we can use the equation b² = c² - a². Substituting the values we have found, we get b² = 21. The standard form of the equation of a hyperbola is

=>  (x-h)²/a² - (y-k)²/b² = 1,

where (h,k) is the center of the hyperbola.

Substituting the values we have found that h = 1 and the value of k as 1, we get the equation

=>  (x-1)²/4 - (y-1)²/21 = 1.

b. In this case, we can see that the vertices have the same x-coordinate but different y-coordinates, so the hyperbola is vertical. We can use the equation (y-k)²/a² - (x-h)²/b² = 1 for a vertical hyperbola.

We know that the center of the hyperbola is the midpoint between the vertices, which is (1, -6).

We can use the distance formula to find the value of a, which is the distance between the center and each vertex. In this case, a = 2.

To find the value of b, we can use the point given and the equation of the hyperbola. Substituting the values we have found, we get the equation

=> (y+6)²/4 - (x-1)²/3 = 1.

c. To find the standard form of the equation of a hyperbola with the given vertices and asymptotes, we need to determine the center of the hyperbola.

The center of the hyperbola is the midpoint between the vertices, which in this case is (-3, 2). We can use the equation (y-k)/(x-h) = ±a/b for the asymptotes.

Substituting the values we have found, we get the equations

=>  (y-2)/(x+3) = 6/5

and

=> (y-2)/(x+3) = -5/1.

We can solve for a and b by setting a/b equal to the slope of the asymptotes.

In this case, a/b = 6/5 or a/b = -5. We also know that a² - b² = c², where c is the distance between the center and each vertex. We can use the distance formula to find the value of c, which in this case is c = 3√5. Substituting the values we have found, we get two possible standard form equations for the hyperbola:

   • If a/b = 6/5, then a² = 36 and b² = 30.

The standard form of the equation for this hyperbola is

=> (x+3)²/36 - (y-2)²/30 = 1.

   • If a/b = -5, then a² = 5 and b² = 6.

The standard form of the equation for this hyperbola is

=> (x+3)²/5 - (y-2)²/6 = 1.

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The corner Deli operates on an overhead percent of 20% of the selling price, which results on an overhead of $1. 25 on the company's private-labeled bags of corn chips. If the corner Deli has a markup of $4. 35 on the bag of corn chips, find (a) selling price, (b) net profit, and (c) cost

Answers

(a) The selling price is $6.25.

(b)  The net profit is the difference between the selling price and the cost is $4.35.

(c)  The cost is $1.90.

We have,

Let's denote the cost of producing one bag of corn chips as "C", the selling price as "S", and the net profit as "P".

We can then use the given information to set up the following equations:

Overhead percent = 20% of the selling price

=> 0.2S = $1.25

Markup = Selling price - Cost

=> $4.35 = S - C

We can solve these two equations simultaneously to find the values of S and C:

0.2S = $1.25

=> S = $6.25 (dividing both sides by 0.2)

$4.35 = S - C

=> $4.35 = $6.25 - C (substituting the value of S)

=> C = $1.90 (subtracting $4.35 from both sides)

(a)

The selling price is $6.25.

(b)

The net profit is the difference between the selling price and the cost:

P = S - C

= $6.25 - $1.90

= $4.35.

(c)

The cost is $1.90.

Thus,

(a) The selling price is $6.25.

(b)  The net profit is the difference between the selling price and the cost is $4.35.

(c)  The cost is $1.90.

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I don’t know how to solve for this

Answers

(a) The combinations are,

Number of 6 player games = 8, if number of 2 player games = 1.

Number of 2 player games = 22, if number of 6 player games = 1.

Number of 6 player games = 7, if number of 2 player games = 4.

Number of 2 player games = 13, if number of 6 player games = 4.

(b) The number of 6 player games is 6 and the number of 2 player games is 7.

Given that total number of athletes = 50

Players needed for 6 player game = 6 and players needed for 2 player games = 2

(a) When number of 2 player games = 1,

Number of athletes left = 50 - (1 × 2) = 48

Number of 6 player games = 48/6 = 8

When number of 6 player games = 1,

Number of athletes left = 50 - (1 × 6) = 44

Number of 2 player games = 44/2 = 22

When number of 2 player games = 4,

Number of athletes left = 50 - (4 × 2) = 42

Number of 6 player games = 42/6 = 7

When number of 6 player games = 4,

Number of athletes left = 50 - (4 × 6) = 26

Number of 2 player games = 26/2 = 13

(b) Let x represents the number of 2 player games and y represents the number of 6 player games.

We get the linear equations,

x + y = 13

AND

2x + 6y = 50

From first equation,

y = 13 - x

Substituting this to second equation,

2x + 6(13 - x) = 50

2x + 78 - 6x = 50

-4x = -28

x = 7

So, y = 13 - 7 = 6

Hence the number of 2 player games played is 7 and the number of 6 player games played is 6.

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pls hurry. 2. Which step is the first incorrect step in the solution shown below?

Answers

Answer:

step 1

Step-by-step explanation:

Step 1: they accidentally changed the 20 in the original prob to 2.

Answer:

step 1

Step-by-step explanation:

they wrote 2x+6=3x+2 but they wrote 2 instead of 20

it should have been 2x+6=3x+20

 Which graph shows the line of best fit for the data ?

Answers

Answer:

top left

Step-by-step explanation:

the line has a similar amount of dots above and below it,

After 5 years, mike's account earned $900 in interest. If the interest rate (in decimal form) is 0. 15, how much did mike initially invest?

Answers

Mike initially invested $1200.

We can use the formula for simple interest to calculate the initial investment:

Interest = Principal * Interest Rate * Time

We know the interest earned is $900, the interest rate is 0.15, and the time is 5 years. Let's substitute these values into the formula:

$900 = Principal * 0.15 * 5

Simplifying the equation:

$900 = 0.75 * Principal

Now, divide both sides of the equation by 0.75 to isolate the Principal:

Principal = $900 / 0.75

Principal = $1200

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suppose a system of linear equations has a 3x5 augmented matrix whose fifth column is not a pivor column. is the system consisten why or why not

Answers

The system of linear equations is not necessarily inconsistent just because its 3x5 augmented matrix has a non-pivot column in the fifth position.

It is possible that the system has infinitely many solutions. However, it is also possible that the system has no solutions. The key factor that determines whether the system is consistent or not is whether the corresponding coefficient matrix has full row rank (i.e., has three pivot rows).

If the coefficient matrix has full row rank, then the system is consistent, regardless of the structure of the augmented matrix. If the coefficient matrix does not have full row rank, then the system is inconsistent.

If the system is consistent, we can use row operations to reduce the augmented matrix to row echelon form or reduced row echelon form, and then use back substitution to find the solutions.

If the system is inconsistent, we can use row operations to derive a contradiction (e.g., a row of the form [0 0 ... 0 b], where b is a nonzero constant), which means that the system has no solutions.

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The figure shows a construction completed by hand.
Does the construction demonstrate how to copy a segment correctly by hand? Justify your answer referring to specific construction steps.

Answers

Yes, the construction demonstrates how to copy a segment correctly by hand.

How to explain the construction

The specific construction steps that show this are:

A line segment AB is drawn.A point C is marked on the line segment, such that C is not an endpoint of the segment.A compass is opened to the length of AB.The compass is used to draw an arc with center C that intersects AB at points D and E.A line segment CD is drawn.The line segment CD is congruent to the line segment AB.

The construction is correct because it follows the steps for copying a segment correctly by hand. The compass is used to measure the length of the original segment, and then the compass is used to draw an arc with the same length.

The line segment CD is drawn through the intersection of the arc and the original segment, and this line segment is congruent to the original segment.

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