A grocery chain determines the cost and revenue models using the following functions: C(x)=1.2x−0.012x2, 0≤x≤150 R(x)=3.6x−0.06x20≤x≤150, where x is the number of unit items sold. Determine the interval on which the profit function P(x) = R(x) − C(x) is increasing.

We can only say that X+y=21 is a true statement for any values of X and y that satisfy this equation.

In mathematics, elimination is the process of solving a system of equations by eliminating variables. Elimination involves two steps: first, a variable is chosen to be eliminated and then the coefficients of the variable are used to modify the remaining equations so that they contain only the other variables.

To solve for the unknown variables, we can use the following methods:

Graphing: We can graph the equation on a coordinate plane by plotting the line of the equation. The point of intersection of the line with the x and y-axis represents the solution of the system of equations.

Substitution: We can solve for one variable in terms of the other by isolating one variable and substituting it into the other equation.

Elimination: We can eliminate one variable by adding or subtracting the equations to eliminate one of the variables.

In this case, we don't have any other equation to solve the system, so we can not find a unique solution, we can only say that X+y=21 is a true statement for any values of X and y that satisfy this equation.

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Answer: To solve for all values of x in the equation x^2 - 2x - 48 = 0 by completing the square, we can follow these steps:

Bring the x term to one side of the equation by adding 2x to both sides: x^2 - 2x = 48

Divide the coefficient of the x^2 term (which is 1) by 2 and square it to find the value to add to both sides of the equation to complete the square: (1/2)^2 = 1/4. Add 1/4 to both sides of the equation: x^2 - 2x + 1/4 = 48 + 1/4

Take the square root of both sides of the equation: (x - 1)^2 = 192 + 1

Solve for x by taking the square root of both sides of the equation: x - 1 = ± √193

Add 1 to both sides of the equation to find the values of x: x = 1 ± √193

So the solutions of the equation are x = 1 + √193 and x = 1 - √193

It is important to notice that these are the solutions in radical form, so they are not exact values of x.

Step-by-step explanation:

m+n is equal to (x+y+z)^2 + n x, y, and z are real numbers.

First, we can rewrite x+y+z as n(x+y+z)^2.

Then, we can substitute x^2+y^2+z^2 into the equation and solve for m^2. We get m^2 = (x+y+z)^3 - 3xyz, which can be simplified to

m^2 = (x+y+z)(x^2+y^2+z^2-xyz).

We can substitute the original equation back in to get

m^2 = (x+y+z)\frac{m^2}{n}.

Then, we can divide both sides of the equation by (x+y+z) to get m^2 = \frac{m^2}{n}. Finally, we can solve for m+n by multiplying both sides of the equation by n, which gives us m+n = m^2.

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Answer:

[tex]x = 2 \: and \\ y = 5[/tex]

Step-by-step explanation:

greetings!!!

look at the attachment above

Hope it helps!!!

Answer: this is a function since there is only one value of y for every value of

Step-by-step explanation:

Answer:

C 16 km

Step-by-step explanation:

Pythagoras

c² = a² + b²

c being the Hypotenuse (the side opposite of the 90° angle), a and b are the legs.

in our case that is

27² = 21.5² + x²

729 = 462.25 + x²

x² = 266.75

x = sqrt(266.75) = 16.33248297... km ≈ 16 km

Answer:

Step-by-step explanation:

5 quart to gallon is 1.25

5 quart to cup is 20

5 Quart to oz is 160

5 Quart to tablespoon is 320

Answer: C

The ratio of rubies to diamonds is given as follows:

4.

The ratio between two amounts is obtained applying proportions, as the ratio between the amounts a and b is given by the division of a by b, as follows:

r = a/b.

The amounts in this problem are given as follows:

The number of rubies is four times the number of diamonds, hence:

x = 4y.

Then the ratio between the number of rubies and the number of diamonds is given as follows:

r = 4y/y

r = 4.

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To determine the key terms refer to in the following conducted study in a local community will be as follows:

a. voted, didn't vote, voted will be variable.

b. a group of voters in the community who voted, randomly selected will be sample.

c. the number of eligible voters who actually plan to vote will be population.

d. the number of eligible voters in the study who actually plan to vote statistic.

e. the attendance of a single voter will be data

f. all eligible voters in the comunity will be parameter.

Any quantity calculated from sample values and taken into consideration for statistical purposes is referred to as a statistic (singular) or sample statistic. A population parameter estimate, a sample description, or a hypothesis evaluation are examples of statistical purposes. Statistics are expressed as the average (or mean) of sample values.

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The solution for f(3) in the function is -7772

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

f(x) = 4 − (x + 3)⁵

Also from the question, we have

f(3)

This means that the value of x is 3, and we calculate f(x) when x = 3

Substitute the known values in the above equation, so, we have the following representation

f(3) = 4 − (3 + 3)⁵

Evaluate

f(3) = −7772

Hence, the solution is −7772

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Complete question

Given f ( x ) = 4 − ( x + 3 )^5, find f(3).

The inequality graphed on the number line is the one on the fourth option, we will get:

x > -2

On the number line we can see that we have an open circle at x = -2 (that means that x = -2 is not a solution to the inequality) and then a line that extends to the right side of that value.

Then the inequality is just the set of all numbers larger than -2, then we will get:

x > -2

That is the graphed inequality, and thus, the correct option is the last one.

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Jennifier was paid $1.49 for each shirt, $4.99 for each pair of slacks and $7.99 for each sports coat.

Two or more expressions with an Equal sign is called as Equation.

Let x = shirts, y = slacks, z = sports coats.

Set up your systems of equations equations.

3x+2y=$14.45..(1)

6x+2y+z=$26.91...(2)

4x+2z=$21.94...(3)

From equation 2

$14.45+3x+z=$26.91

3x+z=12.46...(4)

Multiply equation 4 with 2

6x+2z=24.92..(5)

6x+2z-4x-2z=24.92-21.94

2x=2.98

Divide both sides by 2

x=$1.49

Now plug in x value in equation 1.

3(1.49)+2y=$14.45

4.47+2y=14.45

2y=9.98

Divide both sides by 2

y=$4.99

4x+2z=$21.94

4(1.49)+2z=21.94

5.96+2z=21.94

2z=21.94-5.96

2z=15.98

Divide both sides by 2

z=$7.99

Hence, Jennifier was paid $1.49 for each shirt, $4.99 for each pair of slacks and $7.99 for each sports coat.

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Answer:

f(-2)=14

Step-by-step explanation:

 f(x)=x^2 +2x - 10 and  f=(-2)

f(-2)=-2^2 +2(-2) - 10

4+0+10

14

f(-2)=14

:)

The linear function with a slope of 1/3 and intercept of 7 is defined as follows:

y=1/3x+7.

The slope-intercept definition of a linear function is given as follows:

y = mx + b.

For which the parameters are given as follows:

Considering a slope of 1/3 and intercept of 7, the values of the parameters are given as follows:

m = 1/3, b = 7.

Hence the function is defined as follows:

y = 1/3x + 7.

The problems asks for the linear function with a slope of 1/3 and intercept of 7.

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The solution of the inequality is 8 ≥  x  or x > 10. The graph of the solution is attached

An inequality compares two values, showing if one is less than, greater than, or simply not equal to another value e.g. 5 < 6, x ≥ 2, etc.

Solving for x:

11≥ 2x - 5 or 2x - 5 > 15

Collect like terms:

11 + 5 ≥ 2x  or 2x > 15 + 5

16 ≥ 2x  or 2x > 20

8 ≥  x  or x > 10

Note:  8 ≥  x can also be written as x ≤ 8

We can combine the two as follow:

Inequality notation: 8 ≥  x > 10

The graph of the solution is attached

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Equation of parallel line = y = 3x + 2 and equation of perpendicular line 3y = -x + 16, passing through the point (1,5).

(a) To find an equation of the line that passes through the point (1,5) and is parallel to the line y = 3x - 5, we need to use the slope of the given line. The slope of a line is represented by m and it is equal to the coefficient of x. In this case, the slope of the line y = 3x - 5 is 3.

Therefore, the slope of the line that is parallel to y = 3x - 5 is also 3.

We can use the point-slope form of a line, which is:

y - y1 = m(x - x1)

Where (x1, y1) is a point on the line and m is the slope.

Substituting the given point (1, 5) and the slope of 3, we get:

y - 5 = 3(x - 1)

Simplifying the equation, we get:

y = 3x + 2

So, the equation of the line that passes through the point (1, 5) and is parallel to the line y = 3x - 5 is y = 3x + 2

(b) To find the slope of a line that is perpendicular to the line y = 3x - 5, we need to take the negative reciprocal of the slope. The negative reciprocal of 3 is -1/3. So, the slope of a line that is perpendicular to y = 3x - 5 is -1/3

We can use the point-slope form of a line, which is:

y - y1 = m(x - x1)

Where (x1, y1) is a point on the line and m is the slope.

Substituting the given point (1, 5) and the slope of -1/3, we get:

y - 5 = -1/3(x - 1)

Simplifying the equation, we get:

3(y - 5) = -x + 1

3y = -x + 16

So, the equation of the line that passes through the point (1, 5) and is perpendicular to the line y = 3x - 5 is 3y = -x + 16

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The length of the base is equal to 13 inches.

Mathematically, the area of a rectangle can be calculated by using this formula:

A = LW

Where:

Substituting the given points into the area of rectangle formula, we have the following;

10 5/6 = 4 1/3 × base

65/5 = 13/3b

Length of the base, b = 65/5 ÷ 13/3

Length of the base, b = 65/5 × 3/13

Length of the base, b = 195/65

Length of the base, b = 13 inches.

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The probability that exactly seven claims will be received during a given two-week period=1/64.

Probability is a way to gauge how likely something is to happen. Many things are difficult to forecast with absolute confidence. Using it, we can only make predictions about the likelihood of an event happening, or how likely it is. Probability can range from 0 to 1, with 0 denoting an impossibility and 1 denoting a certainty. For pupils in Class 10, probability is a crucial subject because it teaches all the fundamental ideas of the subject. One is the probability of every event in a sample space.

An insurance company determines that N, the number of claims received in a week, is a random variable with P[N = n] = 1/2n+1, where n > 0 .

Let N1 and N2 represent the number of claims during weeks one and two, respectively,

then since N1 and N2 are independent.

[tex]Pr[N_1+N_2=7]=\sum_{n=0}^7Pr[N1=n]Pr[N2=7-n]\\\\=\sum_{n=0}^7\frac{1}{2^{n+1}}\frac{1}{2^{8-n}}\\\\=\sum_{n=0}^7\frac{1}{2^{9}}\\\\=\frac{8}{2^9}=\frac{1}{64}[/tex]

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In the expression n + 23 ,23 is a constant because it contains two part and other part is variable.

The concept that will be used here is algebraic equation, The term "algebraic equation" refers to a formulation of the equality of two expressions using the algebraic operations of addition, subtraction, multiplication, division, raising to a power, and extraction of a root on a set of variables. One example is x3 + 1.

We were given n + 23

n is the dependent variables which changes with the input.

23 is the constant that never changes.

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Indicated by a trend line is a linear relationship. Y = mx + b, where x is the independent variable and b is the constant, is the equation for a linear connection.

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The square root of 6^2 (√6²) is 6.

What is square root?

Square root of a number is a value, which on multiplication by itself, gives the original number. The square root is an inverse method of squaring a number. Hence, squares and square roots are related concepts.

Suppose x is the square root of y, then it is represented as x=√y, or we can express the same equation as x^2 = y. Here, ‘√’ is the radical symbol used to represent the root of numbers. The positive number, when multiplied by itself, represents the square of the number. The square root of the square of a positive number gives the original number.

For example, the square of 3 is 9, 32 = 9 and the square root of 9, √9 = 3. Since 9 is a perfect square, hence it is easy to find the square root. But for an imperfect square like 3, 7, 5, etc., we have to use different methods to find the square root.

Now ,

given expression √6²

=√36

square root value of √6² =6

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The square root of 6^2 (√6²) is 6.

What is square root?

Square root of a number is a value, which on multiplication by itself, gives the original number. The square root is an inverse method of squaring a number. Hence, squares and square roots are related concepts.

Suppose x is the square root of y, then it is represented as x=√y, or we can express the same equation as x^2 = y. Here, ‘√’ is the radical symbol used to represent the root of numbers. The positive number, when multiplied by itself, represents the square of the number. The square root of the square of a positive number gives the original number.

For example, the square of 3 is 9, 32 = 9 and the square root of 9, √9 = 3. Since 9 is a perfect square, hence it is easy to find the square root. But for an imperfect square like 3, 7, 5, etc., we have to use different methods to find the square root.

Now ,

given expression √6²

=√36

square root value of √6² =6

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Answer:

Choice A

Step-by-step explanation:

1/5 = 9/15

2/3 = 10/15

so 3/5 < 2/3

Total 18 different paths are there from a to b that go through the point circled in the following lattice

In the given question, we have to find how many different paths are there from a to b that go through the point circled in the following lattice.

The diagram of the lattice is given below:

Therefore, we must first go from A to the encircled point.

We must travel 2 horizontally and 2 vertically to do that.

Now, to get to this point, we have ways = [tex]C_{2}^{4}[/tex] ways

Total ways to go from A to the encircled point = [tex]\frac{4!}{2!(4-2)!}[/tex]

Total ways to go from A to the encircled point = 6 ways

Additionally, we must travel 2 horizontal and 1 vertical units to get from the encircling point to B.

As a result, total ways to go from the encircling point to B = [tex]C^{3}_{1}[/tex]

Total ways to go from the encircling point to B = [tex]\frac{3!}{1!(3-1)!}[/tex]

Total ways to go from the encircling point to B = 3 ways

So, different paths are there from a to b = 6×3

Different paths are there from a to b = 18 ways

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Answer:

yes u would be on track.

Step-by-step explanation:

yes; 10 miles in 12 days is equivalent to 10 ÷ 2 = 5 miles in 12 ÷ 2 = 6 days.

:o)

In JMP, open the data in Fit Model and choose scatterplot, and a residual usually looks like the scatterplot but more extended vertically.

(a): Yes, because there is not much of a trend in the data.

(b): The materials cost is a very small percentage of the average cost. It could be true that items that use fewer materials take more labor hours to make ready for the customer.

(c): chose a correct residual plot

In JMP, in the top red triangle, click on save columns, and then click on Residuals. Then go to the data table in JMP and in Graph, press GRAPH BUILDER... put residuals on y and # of labor hours on x

As the number of labor hours​ increases, the residual values from the regression also tend to​ increase, suggesting that the labor input is a lurking variable.

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The values for x at which f has a relative maximum are -3 and 4.

A relative maximum is a point on a function where the function has the highest value within a certain interval or region. It is a local maximum, meaning that it is the highest value within a certain interval, but it may not be the highest value overall.

For example, a function may have multiple relative maxima but only one global maximum.

It's important to note that a relative maximum is not always an actual maximum, it's only a maximum in a specific interval or region of the function.

It's also important to note that for some functions, there might not be any relative maximum in the interval or domain where the function is defined, and for others, it might have a relative maximum at the endpoint of the interval.

On plotting the zeroes of the f(x) on the number line we observe the value of the derivative of f(x) changes from positive to negative indicating points of relative maximum.

Therefore, The values for x at which f has a relative maximum are -3 and 4.

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The conditions that are required to validate the use of t for the significance test would be:

D). l and ll only

A response variable, also known as a dependent variable, is a variable that is being studied or measured in an experiment or statistical analysis. It is the outcome or output of the study, and its value is influenced by one or more predictor variables, also known as independent variables.

The goal of a study is often to understand how the response variable is affected by the predictor variables.

For example, in a medical study, the response variable might be the level of a certain protein in the blood, and the predictor variable might be the dosage of a new drug being tested.

In a marketing study, the response variable might be the number of units sold of a product, and the predictor variables might be the price of the product and the advertising budget.

Therefore, The conditions that are required to validate the use of t for the significance test would be:

D). l and ll only

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The required number of pieces cut from 22 metal rods each 21 in are 242 pieces.

A mixed fraction is one that is represented by both its quotient and remainder. For example, 2 1/3 is a mixed fraction, where 2 is the quotient, 1 is the remainder. An amalgam of a whole number and a legal fraction is a mixed fraction.

We have,

1(4/5) = 9/5 ,

So,

21/9/5

105/9

11(6/9)

Now,the waste is 6/9

Number of pieces are 11(22)

= 242 pieces

Thus, required number of pieces are 242.

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The amount to save according to the recommendation of 3/10 of income is $17400.

In mathematics, a fraction is used to denote a portion or component of the whole. It stands for the proportionate pieces of the whole. Numerator and denominator are the two components that make up a fraction. The numerator is the number at the top, and the denominator is the number at the bottom. The denominator specifies the total number of equal parts in the whole, whereas the numerator specifies the number of equal parts that were taken.

Given that the amount made in a year is $58,000.

The recommended savings is 3/10 thus:

(58000) (3/10) = 17400

Hence, according to the recommendation the amount that needs to be saved in one year is, $17400.

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