use polar coordinates to find the volume of the given solid. under the cone z = x2 y2 and above the disk x2 y2 ≤ 36

An equation to represent the linear function comparing the number of months after the first month (x) to the number of total customers served (y),  400 + 70x

The number of customers served after 12 months, 1240

An equation is a mathematical term, which indicates that the value of two algebraic expressions are equal. There are various parts of an equation which are, coefficients, variables, constants, terms, operators, expressions, and equal to sign.

For example, 3x+2y=0.

Types of equation

1. Linear Equation

2. Quadratic Equation

3. Cubic Equation

Given that,

In the first month, the coffee shop served 400 customers

After that, the coffee shop served 70 customers each month

Suppose, coffee shop served x number of months after first month,

Total people served = 400 + 70x

The number of customers served after 12 months,

Total people served = 400 + 70x12

                                  = 400 + 840

                                  = 1240

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If the value of a is 4 the equation will become true.

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

Let the number be a.

2× a = 8 ...(1)

We need to find the value of a such that the above equation is true.

Divide both sides of equation (1) by 2 .

a = 8/2

a = 4

Hence, if the value of a is 4 the equation will become true.

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Answer:

The following linear equation represents the system:

x + y = 20 (speed of the riverboat and current in km/hr in the same direction)

x - y = 16 (speed of the riverboat relative to the current in km/hr in opposite directions)

Solving for x and y gives us:

x = 18 and y = 2 (speed of the riverboat and current in km/hr).

Step-by-step explanation:

Answer:

No solution

Step-by-step explanation:

1/3x-y=2  

x - 3y = 6​

Times the first equation by -3

-x + 3y = -6

x - 3y = 6

0 = 0

So, there is no solution.

The value of x in the rhombus is -1

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

The shape = rhombus

The diagonals of rhombus bisect each other at 90 degrees

So, we have

2x^2 - 25x + 3x^2 + 60 = 90

Evaluate the like terms

5x^2 - 25x - 30 = 0

Divide through by 5

x^2 - 5x - 6 = 0

So, we have

x^2 + x - 6x - 6 = 0

Factorize

(x + 1)(x - 6) = 0

This gives

x = -1 and x = 6

When x = 6, 2x^2 - 25x is negative

Hence, the value of x is -1

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The mode frequency can be a useful tool for understanding the distribution of the data and identifying any outliers or anomalies in the data set.

The mode frequency of the age variable refers to the most frequently occurring age in a given set of data. This measure of central tendency is particularly useful when working with categorical data, such as age ranges.

To calculate the mode frequency, one must first organize the data into a frequency distribution table, which lists all the different ages and the number of times each occurs. The age with the highest frequency is then considered the mode frequency.

For example, if there are 100 individuals in a data set and the ages range from 20 to 60, we would organize the data into age ranges, such as 20-29, 30-39, etc. Then we would count how many individuals fall into each age range and record this information in the frequency distribution table.

If the age range with the highest frequency occurs more than once, we have a multi-modal data set. On the other hand, if there is only one mode frequency, the data set is considered unimodal.

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Answer:

B; -2.5

Step-by-step explanation:

A is between the value -2 and -3. If we look at the options, there is only one value between -2 and -3, -2.5. So, A must represent -2.5, meaning that our answer is B.

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Answer:

  B.  1:484

Step-by-step explanation:

You want the scale of a 15-inch model that represents a 605-foot building.

The scale is the ratio of the model distance to the corresponding real-world distance. To express the scale as a ratio or fraction without units, the measures being compared must have the same units.

  scale = 15 in : 605 ft = 15 in : (605 ft · 12 in/ft) = 15 : 7260

  scale = 1 : 484

The ratio of heights is ...

  B.  1:484

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The value of square feet means 1 acre be 43,560 square feet.

The US measurement system uses the acre as the unit of land area measurement. Every real estate transaction and listing worldwide has a connection to Square Feet.

The length and width of the land—which are often stated in feet—are multiplied to determine the acreage before converting the result to square feet. Following that, the square footage is converted to acres using a conversion ratio of 43560.

For standing or stored water, an acre-foot is the accepted unit of measurement. It is the volume of water necessary to cover an acre of ground that is 43,560 square feet in size and one foot deep. 325,851 gallons make up an acre-foot.

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The expected Net gain is -0.1001.

Probability refers to potential. A random event's occurrence is the subject of this area of mathematics.

The range of the value is 0 to 1. Mathematics has incorporated probability to forecast the likelihood of various events.

The degree to which something is likely to happen is basically what probability means.

Given:

Total possible selection = 10000

                  Net Gain             Probability

Win                8998                   1/ 10000

Lose                 2                     9999/10000

So, E(x) = 8998 x 1/10000 - 9999/10000

             = -1001 / 10000

so, the expected Net gain = -0.1001

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The closed form for the matrix l−1 is the inverse matrix of l, which corresponds to an elementary transformation of type 1, which is a row transformation.

A closed form for the matrix L-1 is given by the following formula:

L-1 = (1/det(L)) * adj(L)

Where "det(L)" represents the determinant of the matrix L, and "adj(L)" is the adjugate matrix of L. The adjugate matrix of a matrix A is the transpose of its cofactor matrix, and is denoted as adj(A). The cofactor matrix of a matrix is the matrix of determinants of the minors of the matrix multiplied by alternating signs.

The elementary transformation of type 1 is row interchange. This means that two rows of the matrix are interchanged with each other. This transformation has the same effect when applied from the left as from the right, so when multiplying with L-1 from the left, it corresponds to a row interchange.

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The rating scale used by the restaurant is an example of an ordered categorical scale (c)

An ordered categorical scale is a type of categorical scale where the categories have a specific order or ranking. In this case, the categories "excellent," "very good," "good," and "poor" have a clear order from highest to lowest, indicating the level of customer satisfaction.

A binary/dummy scale, on the other hand, only has two categories, such as "yes" or "no."

An unordered categorical scale does not have a specific order or ranking, such as gender (male or female) or hair color (brown, black, blond, etc.).

A continuous scale, such as height or weight, has an infinite number of possible values and can be measured to any degree of precision.

So, the restaurant's questionnaire uses an ordered categorical scale to measure customer satisfaction.

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Answer:

The answer to the inequality is [tex]p\geq 4[/tex].

Step-by-step explanation:

Lets solve the inequality.

[tex]-2p\leq -8[/tex]

Divide both sides of the equation by -2.

There is an inequality rule that says when multiplying or dividing both sides of an inequality by a negative value, flip the direction of the inequality sign.

First lets divide both sides by -2.

[tex]\frac{-2p}{2} \leq \frac{-8}{2}[/tex]

Simplify the left side by cancelling the common factor of −2.

[tex]p\leq \frac{-8}{2}[/tex]

Simplify the right side by dividing -8 by 2.

[tex]p\leq 4[/tex]

We need to flip the direction of the inequality sign.

[tex]p\geq 4[/tex]

Answer:It depends on the specific system of inequalities being considered. To determine if a point is a solution to a system of inequalities, you need to substitute the x and y coordinates of the point into each inequality and see if it is true for all of them. If it is true for all of the inequalities, then the point is a solution to the system.

give me a thanks and a 5 star pls!

Step-by-step explanation:

It depends on the specific system of inequalities being considered. To determine if a point is a solution to a system of inequalities, you need to substitute the x and y coordinates of the point into each inequality and see if it is true for all of them. If it is true for all of the inequalities, then the point is a solution to the system.

The equation 1.[tex]5^x[/tex] - x - 2 = 0 then the value of x be -1.44292524676275.

A line is an endlessly long object without breadth, depth, or curvature in geometry. Thus, despite the fact that they can exist in two, three, or higher dimensional environments, lines are one-dimensional things. The term "line" can also refer to a line segment that has two locations that serve as its ends in daily life.

A line is a straight, one-dimensional figure in geometry that is infinitely long in both directions and has no thickness.

Let the equation [tex]$1.5^x-x-2=0$[/tex]

Lambert form: [tex]$1=-e^{-\ln (1.5) x}(-x-2)$[/tex]

The equation with [tex]$(-x-2) \ln (1.5)=u$[/tex] and [tex]$x=-\frac{u+2 \ln (1.5)}{\ln (1.5)}$[/tex][tex]$1=-e^{-\ln (1.5)\left(-\frac{u+2 \ln (1.5)}{\ln (1.5)}\right)}\left(-\left(-\frac{u+2 \ln (1.5)}{\ln (1.5)}\right)-2\right)$$[/tex]

Simplifying the above equation, we get

[tex]$1=-e^{u+2 \ln (1.5)}\left(\frac{u+2 \ln (1.5)}{\ln (1.5)}-2\right)$$[/tex]

[tex]$1=-e^{u+2 \ln (1.5)}\left(\frac{u+2 \ln (1.5)}{\ln (1.5)}-2\right)$[/tex] in Lambert form: [tex]$e^u u=-\frac{\ln (1.5)}{2.25}$[/tex]

Solve [tex]$e^u u=-\frac{\ln (1.5)}{2.25}: \quad u=\mathrm{W}_{-1}\left(-\frac{\ln (1.5)}{2.25}\right), u=\mathrm{W}_0\left(-\frac{\ln (1.5)}{2.25}\right)$[/tex]

[tex]$$u=\mathrm{W}_{-1}\left(-\frac{\ln (1.5)}{2.25}\right), u=\mathrm{W}_0\left(-\frac{\ln (1.5)}{2.25}\right)$$[/tex]

Substitute back [tex]$u=(-x-2) \ln (1.5)$[/tex], solve for x[tex]$(-x-2) \ln (1.5)=W_{-1}\left(-\frac{\ln (1.5)}{2.25}\right): \quad x=-\frac{W_{-1}\left(-\frac{\ln (1.5)}{2.25}\right)+2 \ln (1.5)}{\ln (1.5)}$[/tex]

Therefore, the simplifying x, we get

[tex]$x=-\frac{W_{-1}\left(-\frac{\ln (1.5)}{2.25}\right)+2 \ln (1.5)}{\ln (1.5)}, x=-\frac{W_0\left(-\frac{\ln (1.5)}{2.25}\right)+2 \ln (1.5)}{\ln (1.5)}$[/tex]

Therefore, the value of x be x = -1.44292524676275.

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Investment in automation cost = $8,750,000 when there

no further change in capacity.

Every three-dimensional object occupies some space. This space is measured in terms of its volume. Volume is defined as the space occupied within the boundaries of an object in three-dimensional space. It is also known as the capacity of the object.

Following are the informations of Cent:

Current automation = 7%

Capacity of next round = 1,100

New automation = 7 + 2 = 9

Investment in automation cost = Capacity * (4 * (New automation - previous automation)) * 1000

= 1,100 * (4 * (9 - 7)) * 1,000

= 1,100 * (4 * 2) * 1000

= 1,100 * 8 * 1,000

= $8,800,000.

Investment in automation cost = $8,800,000.

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The monthly loan payment for the offer made by Juanita, given the cost of the car and the dealership, is A. 248.62

First, find the amount taken on loan :

= 15, 000 x ( 1 - 10 % down payment )

= $ 13, 500

The periodic rate is:

= 4 % / 12

= 1 / 3 %

The number of periods :

= 5 years x 12 months a year

= 60 months

The monthly payment is:

Present value of loan = Monthly Payment x Present value interest factor of annuity, 1 / 3 %, 60 months

13, 500 = 54.299068906557 x Monthly payment

Monthly payment = 13, 500 / 54.299068906557

= 248. 62

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The value of P (factor of 10) is, 1/4.

The term probability refers to the likelihood of an event occurring. Probability means possibility. It is a branch of mathematics that deals with the occurrence of a random event. The value is expressed from zero to one.

We have to given that;

There ae 4 cards to select.

Now, In all 4 cards the factor of 10 is, 2

Hence, The probability to be the factor of 10 is,

⇒ 1 / 4

Thus, The value of P (factor of 10) is, 1/4.

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The coins of each type are 346 nickels, 165 dimes and 173 quarters. when a newspaper carrier has $6.85 charge  by substitution method.

Let x = number of quarters

Then, x-4 = number of dimes and 5x = number of nickels

So, 0.05(5x) + 0.10(x-4) + 0.25x = 6.85

0.6x - 0.4 = 6.85

0.6x = 7.25

x = 12

There are 12 quarters, 8 dimes, and 60 nickels (or)

x = 8 + D(dimes)

D = Q -8

N(nickels) = 2Q

N + D + Q = 685

2Q + Q-8 + Q = 685

4Q = 685+ 8 = 693

Q = 693/4 = over 173

D= over 165

N= over 346

174+ 165 + 346 = 685

the answer is 346 nickels, 165 dimes and 174 quarters.

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Answer is Taking data:

                        28 78 74 89 72

                        50 55 66 26 84

                        59 64 88 23 27

                        70 63 42 37 29

The answer is width of class =13

As the data is not given in the question I'm guessing the data from the question I solved before

28 78 74 89 72

50 55 66 26 84

59 64 88 23 27

70 63 42 37 29

as taking the above data,

maximum value=89

minimum value=23

no : of classes scores are divided into=5 classes

As we know for finding the width of class:

width of class = (maximum value-minimum value)/ no ; of classes

width = (89-23)/5=66/5

width=13.2=13

Note : By using the above given formula you can calculate the width of any data just by taking the maximum and minimum values of data and the number of classes the data is divided into.

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Answer:

21[tex]e^{6}[/tex] and 30[tex]t^{6}[/tex][tex]v^{10}[/tex]

Step-by-step explanation:

using the rule of exponents

• [tex]a^{m}[/tex] × [tex]a^{n}[/tex] = [tex]a^{(m+n)}[/tex]

given

3e³ × 7e³

= 3 × 7 × e³ × e³

= 21 × [tex]e^{(3+3)}[/tex]

= 21[tex]e^{6}[/tex]

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

(10[tex]t^{4}[/tex][tex]v^{5}[/tex] )(3t²[tex]v^{5}[/tex] )

= 10 × 3 × [tex]t^{4}[/tex] × t² × [tex]v^{5}[/tex] × [tex]v^{5}[/tex]

= 30 × [tex]t^{(4+2)}[/tex] × [tex]v^{(5+5)}[/tex]

= 30[tex]t^{6}[/tex][tex]v^{10}[/tex]

The surface area of an egg shell scales as the mass of the egg shell raised to 1.82694

The term surface area in math is defined as the area occupied by a three-dimensional object by its outer surface

Here we know that the area of a cube with edged is proportional to the second power d² while its volume is proportional to the third power d³.

Here we know that for any bounded solid object, here we have which encloses a region with some volume V and its enclosing surface has area A, where as the same kind of proportions can be derived in terms of a linear dimension d of the object, here for example the diameter of the object.

AS we all know that the surface area is directly proportional to the 3rd power of the mass of the egg, here we have A = km³ where A is the surface area, k a constant of proportionality, and m the mass.

For a chicken egg we have 28 = k(60)⁰°⁶⁷

Here by solving for k we get:

=> k = 28/60⁰°⁶⁷ ≈ 1.82694

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The x-intercept of the function as an ordered pair is equal to (5, 0).

In Mathematics, the x-intercept can be defined as the point at which the graph of a function crosses the x-coordinate (x-axis) and the value of "y" or y-value is equal to zero (0).

In this context, we would replace the y-value with zero (0) by substituting it into the given equation y = ∛x - 5 as follows;

y = ∛x - 5

0 = ∛x - 5

Taking the cube root of both sides of the function, we have the following:

0 = x - 5

x = 5

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Answer:

m= -3/2

Step-by-step explanation:

To find slope

[tex]m \: = \frac{y2 - y1}{x2 - x1} [/tex]

We have our x1 and y1 of (2,5)

We have our x2 and y2 of (8,-4)

Now we plug in

= (-4-5)/(8-2)

= (-9)/(6)

Simplifying it would be

[tex]m = - \frac{3}{2} [/tex]

Answer: slope 'm' = -3 / 2

Step-by-step explanation: Using the formula m=(y2-y1)/(x2-x1), where 'm' is the slope of the line connecting the two points, we can plug in our x and y values:

x1 = 2

x2 = 8

y1 = 5

y2 = -4

Once we plug in our x and y values, we get the equation

m = (-4 - 5) / (8 - 2)

--> -9 / 6 (We can simplify this fraction to get or answer of -3 / 2)

It is an inferential technique that uses the data from a sample to draw inferences about a population.

Hypothesis testing is a type of statistical hypothesis that uses data from a sample to draw judgments about a population parameter or a population probability distribution.

First, an uncertain hypothesis is made about the parameter or distribution. This is named the null hypothesis and is denoted by [tex]H_{O}[/tex]. An alternative hypothesis (denoted [tex]H_{a}[/tex]), which is the opposite of the null hypothesis, is then described.

The hypothesis-testing process involves using sample data to decide whether or not [tex]H_{0}[/tex] can be rejected. If [tex]H_{O}[/tex] is rejected, the statistical determination is that the alternative hypothesis [tex]H_{a[/tex] is true.

Hence, the correct answer is c.

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--The given question is incorrect; the correct question is

"A hypothesis test is

a. a descriptive technique that allows researchers to describe a sample

b. a descriptive technique that allows researchers to describe a population

c. an inferential technique that uses the data from a sample to draw inferences about a population

d. an inferential technique that uses information about the population to make predictions about a sample"--

The system of equation (4) and (5) have no solution

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

7(5x + 2) = 5x + 2

Divide both sides by 5x + 2

7 = 1

This equation is false, meaning there is no solution for y that satisfies both equations.

Here, we have

2y = 6

y = -15

Since these are two different equations with the same variable, y, we can use substitution to find a solution.

Starting with the second equation, y = -15, we can substitute this value into the first equation:

2y = 6

2(-15) = 6

-30 = 6

This equation is false, meaning there is no solution for y that satisfies both equations.

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Complete question

4. How many solutions will this equation have? 7(5x + 2) = 5x + 2

5. Solve the given system of equations 2y = 6 and y = -15

The cubic polynomial with the given points is:

y = (1/4)*(x + 4)*(x - 2)*(x - 5)

Any polynomial of degree N with the zeros {a,b, c...} and a leading coefficient K can be written as:

y = k*(x - a)*(x - b)*...

Here we have the zeros: -4, 2, and 5, then we can write:

y = k*(x + 4)*(x - 2)*(x - 5)

And it also passes throuh the point (0, 10), then:

10 = k*(0 + 4)*(0 - 2)*(0 - 5)

10 = k*40

10/40 = k

1/4 = k

The polynomial is:

y = (1/4)*(x + 4)*(x - 2)*(x - 5)

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The function model for a bacteria culture that doubles in size every 8 hours is A(t) = 150*2^(t/8)

An equation is the equality between two algebraic expressions, which have at least one unknown or variable.

Information about the problem:

The function that models the situation is the following:

A(t) = A(0)*2^(t/8)

A(t) = 150*2^(t/8)

Where A(0) is the culture start and t is the time passed.

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