Evaluate the surface integral ∫∫H4ydA where H is the helicoid (i.e., spiral ramp) given by the vector parametric equation

r⃗ (u,v)=⟨ucosv,usinv,v⟩, 0≤u≤1, 0≤v≤9π.

Answer:

  b 12, 14, 16

Step-by-step explanation:

You want the next three terms of a sequence that starts 6, 8, 10, ....

The rule seems to be "add 2." If we continue to add 2 to each term, we find the next terms to be ...

  10 +2 = 12

  12 +2 = 14

  14 +2 = 16

The next 3 terms are 12, 14, 16.

__

Additional comment

Without the figure, the idea of "add one column" is meaningless. Since answers are in terms of dot counts, it would be more meaningful to describe the pattern in terms of what happens to the dot count.

Let's call the amount of money Andy has "x".

According to the problem, Kelly has 7 pence more than Andy, so Kelly has x + 7 pence.

Georgia has a penny less than Andy, so Georgia has x - 1 pence.

The total amount of money they have is 1.48, which we can write as 148 pence.

So we can set up the equation:

x + (x + 7) + (x - 1) = 148

Simplifying and solving for x:

3x + 6 = 148

3x = 142

x = 47.33

Since we're dealing with pence, we'll round down to the nearest whole number:

x = 47

So Andy has 47 pence, Kelly has 54 pence (47 + 7), and Georgia has 46 pence (47 - 1).

The length of the missing diagonal is 4 miles.

Step-by-step explanation:

GIVEN :

TO FIND :

USING FORMULA :

[tex] \longrightarrow{\sf{Area \: of \: rhombus = \dfrac{d_1 \times d_2}{3}}}[/tex]

SOLUTION :

Substituting the given values in the formula to find the length of the missing diagonal :

[tex] \longrightarrow{\sf{Area \: of \: rhombus = \dfrac{d_1 \times d_2}{3}}}[/tex]

[tex] \longrightarrow{\sf{20 = \dfrac{10 \times d_2}{2}}}[/tex]

[tex] \longrightarrow{\sf{20 \times 2= 10 \times d_2}}[/tex]

[tex] \longrightarrow{\sf{40= 10 \times d_2}}[/tex]

[tex] \longrightarrow{\sf{d_2 = \dfrac{40}{10}}}[/tex]

[tex] \longrightarrow{\sf{d_2 = \cancel{\dfrac{40}{10}}}}[/tex]

[tex]\longrightarrow{\sf{\underline{\underline{d_2 = 4 \: miles}}}}[/tex]

Hence, the length of the missing diagonal is 4 miles.

Answer:

The length of the missing diagonal is 4 miles.

Step-by-step explanation:

To find the length of the missing diagonal, we can use the formula for the area of a rhombus, which is:

[tex]\sf\qquad\dashrightarrow Area_{(Rhombus)} = \dfrac{(Diagonal_1 \times Diagonal_2)}{2}[/tex]

We know that the area is 20 square miles and one of the diagonals is 10 miles, so we can substitute these values into the formula as follows:

[tex]\sf\qquad\dashrightarrow20 = \dfrac{(10 \times Diagonal_2)}{2}[/tex]

Simplifying the equation, we get:

[tex]\sf\qquad\dashrightarrow 40 = 10 \times Diagonal_2[/tex]

Dividing both sides by 10, we get:

[tex]\sf\qquad\dashrightarrow \boxed{\bold{\:\:Diagonal_2 = 4\:\:}}\:\:\:\bigstar[/tex]

Therefore, the length of the missing diagonal is 4 miles.

The answer of the given question based on the graph coordinate is , the rule for the values in the table is: Y = 7X - 0.

In mathematics, a coordinate is a set of values that specifies the position of a point in space. Coordinates are used to locate points, lines, and other geometric objects in a plane, a three-dimensional space, or even higher dimensions.

X    Y

5    35

1     7

4    28

2    14

One possible way to do this is to calculate the differences between successive pairs of X and Y values, and then see if there is a constant difference or ratio between them.

Taking the first two rows as an example, we have:

X Y

5 35

1 7

The difference between the X values is 5 - 1 = 4, and the difference between the Y values is 35 - 7 = 28. Dividing the difference in Y by the difference in X gives us:

(35 - 7) / (5 - 1) = 28 / 4 = 7

This means that for every increase of 1 in X, the corresponding increase in Y is 7. We can check this for the other pairs of values in the table and see that it holds true:

X Y

5 35

4 28 (decrease of 1 in X, decrease of 7 in Y)

2 14 (decrease of 2 in X, decrease of 14 in Y)

So the rule for the values in the table is:

Y = 7X - 0.

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The probability that all 4 people spend more than an hour a day using the Internet is 0.053 or 5.3%.

The given problem is an example of a binomial probability distribution, where there are only two outcomes - success and failure. Here, success means spending more than an hour a day using the internet, and failure means spending an hour or less a day.

The probability of success is p = 0.48, and the probability of failure is q = 1 - p = 0.52.

To find the probability that all 4 people spend more than an hour a day using the Internet, we need to use the formula for the binomial probability distribution:

P(X = k) = (n choose k) * [tex]p^{k }* q^{(n-k)[/tex]

Here, n = 4 (the number of people selected), and k = 4 (the number of people who spend more than an hour a day using the Internet).

Plugging in the values, we get:

P(X = 4) = (4 choose 4) * 0.48⁴ * 0.52⁴⁻⁴ = 0.053

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Part a: Ratios of side = 1:3 ; Ratios of Area of base = 1: 9 ; Ratios of volume = 1: 27.

Part b: volume of medium box = 5832 cu. in .

A solid shape comprising six square faces is called a cube. Because every square face has the identical side length, each face is the same size. A cube has 8 vertices and 12 edges. An intersection of three cube edges is called to as a vertex.

Given data:

Formula for the volume of cube :

V = side³

216 = x³

x = ∛216

x = 6 in.

Part A: length, with and height of cube is triples.

new side = 3*old side

new side = 3x

Ratios of side:

new side / old side = x / 3x  = 1/3

new side : old side = 1:3

Area of base = side²

Ratios of Area of base:

new area / old area = x² / (3x)²

new area / old are =  x² / 9x² = 1/9

new area : old are = 1: 9

Ratios of volume:

new vol / old vol = x³ / (3x³)

new vol / old vol = x³ / 27x³ = 1/27

new vol : old vol = 1:27

Part b: volume of medium box:

V = (3x)³

V = (3*6)³

V = (18)³

V = 5832 cu. in

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Answer:

AM and AR

Step-by-step explanation:

A is the center, AR is a radius and so is AM

Answer:

[tex]\pi {r}^{2}h = 51\pi[/tex]

[tex] \frac{1}{3} \pi {r}^{2} h = \frac{1}{3} \times 51\pi= 17\pi[/tex]

The volume of the cone is 17π cubic centimeters.

Five points on the inverse function g(x) = log₄(x) are: (1, 0), (4, 1), (16, 2), (1/4, -1/2), and (2, 0.5).

Given that

f(x) = 4^x.

To find the inverse of the function f(x) = 4^x,

We need to interchange the positions of x and y and solve for y. So, we have:

x = 4^y

Taking the logarithm base 4 of both sides, we get:

y = log₄(x)

Therefore, the inverse of the function f(x) = 4^x is g(x) = log₄(x)

To find five points on the inverse function g(x), we can choose five x-values and find the corresponding y-values:

If x = 1, then g(x) = log₄(1) = 0, so the point is (1, 0).

If x = 4, then g(x) = log₄(4) = 1, so the point is (4, 1).

If x = 16, then g(x) = log₄(16) = 2, so the point is (16, 2).

If x = 1/4, then g(x) = log₄(1/4) = -1/2, so the point is (1/4, -1/2).

If x = 2, then g(x) = log₄(2) ≈ 0.5, so the point is (2, 0.5).

Therefore, five points on the inverse function g(x) = log₄(x) are: (1, 0), (4, 1), (16, 2), (1/4, -1/2), and (2, 0.5).

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The correct answer as a trinomial in descending degree order is -2x^2 + 6x + 4

Here's the step-by-step solution with the figures:

(5x^2 + 10x - 5) - (7x^2 + 4x - 9)

= 5x^2 + 10x - 5 - 7x^2 - 4x + 9 (distribute the negative sign)

= (5x^2 - 7x^2) + (10x - 4x) + ( -5 + 9) (collect like terms)

= -2x^2 + 6x + 4 (simplify and arrange in descending degree order)

Therefore, the simplified expression in descending degree order is -2x^2 + 6x + 4.

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Answer:

Scientific notation = 8.434 × 10^5

Scientific e notation = 8.434e5

Engineering notation = 843.4 × 10^3 ---> (thousand; prefix kilo- (k) )

Standard form = 8.434 × 10^5

Answer: 285 mg is more than 34.4 mg

Step-by-step explanation:

To compare the two quantities, we can simply look at the whole numbers before the decimal point.

285 is a larger whole number than 34, so we can say that 285 mg is more than 34.4 mg.

The decimals after the whole numbers are used to represent the fractions of the numbers.

The computation of the increased in salary is $500.

Here, we have,

Explanation:

Data provided in the question

Salary for the first year = $50,000

CPI increase during the year = 4%

Overstated inflation = 1% i.e. 5%

The computation of the increased in salary is shown below:

= Salary of the first year × inflation rate - salary of the first year × CPI increase during the year

= $50,000 × 5% - $50,000 × 4%

= $2,500 - $2,000

= $500

Hence, The computation of the increased in salary is $500.

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complete question:

Mark's wage contract specifies a $50,000 salary for the first year, and specifies a salary increase equal to the percentage increase in the CPI during the second year. The increase in the CPI during the year was 4.0%. If the CPI overstates inflation by 1.0% (that is, the actual price increase was 3% and not 4%), at the end of the first year Mark's salary increased by $________ more than it would have without the upward bias.

The resort should sell a number of 255 packages at a price of $2400 per person to maximize their monthly profit and the maximal profit is $613,400.

Maximal profit refers to the highest level of profit that a business or organization can achieve given certain constraints such as cost, demand, or pricing. It is the point at which a company or business generates the most revenue after accounting for all expenses associated with production and distribution of goods or services. To determine the maximal profit, a business will need to find the optimal balance between costs and revenue, while also taking into account factors such as competition and market demand. This involves analyzing a variety of financial metrics such as revenue, cost of goods sold, gross profit margin, and net profit margin, among others.

Let's begin by defining some variables:

P = price of the package

Q = number of packages sold

R = revenue

C = cost

Profit = revenue - cost

Based on the information given, we can create the following equations:

R = P * Q

C = 1600 + 2000 * Q

Profit = R - C = P * Q - (1600 + 2000 * Q)

We want to find the price that will maximize the monthly profit. To do this, we need to find an expression for profit in terms of P only. We can use the equation for C to substitute Q in the expression for profit:

C = 1600 + 2000 * Q

Q = (C - 1600) / 2000

Profit = P * Q - (1600 + 2000 * Q)

Profit =

Profit = P * ((C - 1600) / 2000) - C + 1600

Now we can find the derivative of profit with respect to P:

dProfit/dP = (C - 1600) / 2000

To find the value of P that maximizes profit, we need to set the derivative equal to 0:

dProfit/dP = 0

(C - 1600) / 2000 = 0

C = 1600

This means that profit is maximized when revenue equals cost, which makes sense. Substituting C = 1600 into the expression for profit, we get:

Profit = P * ((1600 + 2000 * Q - 1600) / 2000) - 1600

Profit = P * Q - 1600

Now we need to find the corresponding values of P and Q. We know that for every increase of $100 in price, there will be a decrease of 5 in the number of packages sold. This means that:

Q = 300 - (P - 2000) / 100 * 5

Substituting this into the expression for profit, we get:

Profit = P * (300 - (P - 2000) / 100 * 5) - 1600

To find the maximum profit, we can take the derivative of this expression with respect to P and set it equal to 0:

dProfit/dP = 300 - (P - 2000) / 20 = 0

P = 2400

This means that the price that will maximize the monthly profit is $2400 per person. To find the corresponding number of packages sold, we can substitute this into the equation for Q:

Q = 300 - (2400 - 2000) / 100 * 5 = 255

Therefore, the resort should sell 255 packages at $2400 per person to maximize their monthly profit. To find the maximal profit, we can substitute these values into the expression for profit:

Profit = 2400 * 255 - 1600 = $613,400.

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1. About 3.079 is the valuef at which the equation holds true.

2. About 12.75 is the value of x that causes the equation to be true.

It often consists of variables, which are unknowable values that can change, and constants, whose values never change.

1. Using the two sides' combined logarithm:

[tex]log_{21}(21^{18})=log_{21}((21)^f^3)[/tex]

We can simplify the right-hand side using the logarithm property that

[tex]log\ a(b^c)=c\ log^x\ a(b)\\\\log_{21}(21^{18})=f^3\times log_{21}(21)[/tex]

Simplifying the right-hand side of the logarithm:

[tex]log_{21}(21)=1[/tex]

Adding this to the equation as a substitute:

[tex]log_{21}(21^{18})=f^3\times1[/tex]

Simplifying the left-hand side of the logarithm:

18 = f³

Using both sides' cube roots:

f = 18¹/³

Making the cube root simpler:

f = 2 × 3¹/³

2. First, we can separately simplify the fraction's numerator and denominator:

4¹⁷/⁴ ÷ 4¹¹/⁹ = (4¹⁷/⁴) × (4⁹/¹¹)

By removing the exponents of 4, we can now combine the two terms:

[tex]4^{(17/4-9/11)}=4^{(187/44)}[/tex]

The right side of the equation must then be simplified by taking the cube root of 4:

∛4 = 4¹/³

the equations are as follows:

[tex]4^{(187/44)}=4^{(1/3\times x)}[/tex]

We may compare the exponents of 4 using the property of exponents:

187/44 = 1/3 × x

Adding 3 to both sides:

x = 187/44 × 3

Multiplying and simplifying the fraction:

x = 187/44 × 3 = 561/44 ≈ 12.75

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Answer:

no solution

Step-by-step explanation:

3r + 10 - 3r = 15 ← collect like terms on left side

10 = 15 ← false statement

this false statement indicates the equation has no solution

The surface area of the pyramid is 64 square feet.

What is triangle?

A triangle is a three-sided polygon with three angles. It is a fundamental geometric shape and is often used in geometry and trigonometry.

To find the surface area of the pyramid, we need to find the area of each face and add them together.

First, let's find the area of the base, which is a square with side length 4 feet:

Area of base = 4 feet x 4 feet = 16 square feet

Next, we need to find the area of each triangular face. We know that the height of each triangular face is 6 feet, and the base of each triangular face is one of the sides of the square base, which is 4 feet. To find the area of a triangle, we use the formula:

Area of triangle = 1/2 x base x height

Area of each triangular face = 1/2 x 4 feet x 6 feet = 12 square feet

There are 4 triangular faces, so the total area of all the triangular faces is:

Total area of triangular faces = 4 x 12 square feet = 48 square feet

Now we can find the total surface area by adding the area of the base and the area of the triangular faces:

Total surface area = area of base + area of triangular faces

Total surface area = 16 square feet + 48 square feet

Total surface area = 64 square feet

Therefore, the surface area of the pyramid is 64 square feet.

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To find the LCM of 24 and 6, we can use the prime factorization method.

First, we find the prime factorization of each number:

24 = 2 x 2 x 2 x 3

6 = 2 x 3

Then, we identify the highest power of each prime factor that appears in either number.

The prime factor 2 appears three times in 24, but only once in 6. Therefore, we take the highest power of 2, which is 2 x 2 x 2 = 8.

The prime factor 3 appears once in both numbers, so we take the highest power of 3, which is 3.

Finally, we multiply these together to get the LCM:

LCM(24, 6) = 8 x 3 = 24

Therefore, the LCM of 24 and 6 is 24.

~~~Harsha~~~

Answer: LCM of  24 and 6 is 24

Step-by-step explanation:

$[tex]240[/tex] is saved by Isaiah from his allowance within the space of [tex]20[/tex] weeks.

The link between two or more variables is depicted using an equation. Mathematical operations may be used in equations.

Isaiah is saving  $[tex]12[/tex] per week from his pay.

Amount of money saved by Isaiah  in [tex]20[/tex] weeks

Money saved [tex]=[/tex] $[tex]12[/tex] ×[tex]20[/tex]

Money saved = $[tex]240[/tex]

Therefore, $[tex]240[/tex] is saved by Isaiah from his allowance within the space of [tex]20[/tex] weeks.

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the calculated total savings matches the given total savings of $240, we can say that the statement is true

What is the arithmetic operation?

The four fundamental operations of arithmetic are addition, subtraction, multiplication, and division of two or more quantities. Included in them is the study of numbers, especially the order of operations, which is important for all other areas of mathematics, including algebra, data management, and geometry. The rules of arithmetic operations are required in order to answer the problem.

To check whether this statement is true or false, we can use the following formula:

Total Savings = Savings per Week × Number of Weeks

Substituting the given values, we get:

Total Savings = $12/week × 20 weeks = $240

Since the calculated total savings matches the given total savings of $240, we can say that the statement is true.

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Answer:

Your late fee is $13.13 (15% of $87.50).

Your past due balance plus the late fee equals $100.63 ($87.50 + $13.13).

Adding the new charges of $75.00 to $100.63, your new total is $175.63.

Therefore, your new total is $175.63.

Therefore , the solution of the given problem of expression comes out to be 6.5 is the abbreviated numerical expression.

Shifting numbers, which can be expanding, variable diminishing, or blocking, should be used instead of random estimations. Only through exchanging goods like tools, expertise, or answers to problems could they assist one another. The explanation on the reality equation may include the justifications, elements, or mathematical claims for tactics like increased argumentation, falsification, and blending.

Here,

The mathematical expression is expressed as follows:

=> 42 / 7 + (3 / 6)

We can use the division operations to make the expression simpler:

=> 7 /42 = 6

=> 6 / 3 = 0.5.

The statement is thus more easily expressed as follows:

=> 6 + 0.5

When we add the two numbers, we get:

=> 6.5

Therefore, 6.5 is the abbreviated numerical expression.

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The complete question is " Write and simplify this numerical expression. Forty-two divided by seven plus the quantity three divided by six"

The measure of arc angle QT is determined as 142 ⁰.

The measure of m∠STR is determined as 23⁰.

The measure of angle subtended by the arc QT is calculated by applying the following formula.

Based on the angle of intersecting chord theorem, we will have the following equation.

m∠QST = ¹/₂( arc QT )

arc QT = 2 (m∠QST)

arc QT = 2 x 71⁰

arc QT = 142⁰

m∠STR = ¹/₂( arc SR )

m∠STR = ¹/₂ x 46⁰

m∠STR = 23⁰

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Thus, the area of the given trapezium is found toe be 37.8 sq. cm.

A trapezium is a quadrilateral in two dimensions with one pair of parallel sides. The non-parallel sides of a trapezium are referred to as the trapezium's "legs," while the parallel sides are referred to as its "bases." The length of the legs or the measuring of their angles are used to categorise trapeziums.

Given data:

area of trapezium = 1/2(sum of parallel side) * height

area  of trapezium = 1/2(PQ + CR)*PA

area  of trapezium = 1/2*(3.15 + 6.3)*8

area  of trapezium = 1/2*(9.45)*8

area  of trapezium = 37.8 sq. cm

Thus, the area of the given trapezium is found toe be 37.8 sq. cm.

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The scale factor of the dilation is 48.

The scale factor is a mathematical concept that describes the ratio of the lengths, areas, or volumes of two similar geometric figures. Similar figures have the same shape but may have different sizes.

When one figure is a dilation (a type of transformation that changes the size of a figure without changing its shape) of another figure, the scale factor is the ratio of the corresponding side lengths or dimensions of the two figures.

The scale factor of the dilation is the ratio of the length of the image to the length of the original object. In this case, the length of the image is 12 millimeters and the length of the original object is 0.25 millimeters. Therefore, the scale factor is:

scale factor = length of image/length of the original object

scale factor = 12 mm / 0.25 mm

scale factor = 48

So the scale factor of the dilation is 48.

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The total number of employees in the organization will be 140.

Given that:

There are 40 employees who have a technical degree

There are 100 employees who have a non-technical degree

Algebra is the study of abstract symbols, while logic is the manipulation of all those ideas.

The total number of employees are calculated as,

Total = Employees who have a technical and non-technical degree

Total = 40 + 100

Total = 140

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The equation of the ellipse is ((x+2)² / 36) + ((y-4)² / 35.12) = 1

To find the center of the ellipse, we can find the midpoint between the two vertices:

Midpoint = ((-8 + 4)/2, (4 + 4)/2) = (-2, 4)

So the center of the ellipse is (-2, 4).

To find the semi-major axis (a), we can find the distance from the center to one of the vertices:

Distance = √[(-8 - (-2))² + (4 - 4)²] = √36 = 6

So the semi-major axis is 6.

To find the distance between the foci (2c), we can find the distance between the two foci:

Distance = √[(-3 - (-1))² + (4 - 4)²] = 2

So 2c = 2 and c = 1.

Now we can use the relationship between a, b, and c in an ellipse:

c² = a²- b²

(1)² = (6)² - b²

b² = 35

b ≈ 5.92

So the semi-minor axis is approximately 5.92.

Therefore, the equation of the ellipse is ((x+2)² / 36) + ((y-4)² / 35.12) = 1

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Correct question is "vertices at (-8, 4) and (4, 4), foci at (-3, 4) and (-1, 4), find the equation of the ellipse."

a. Statistical question about vacation destinations: What percentage of people who traveled for vacation last year went to a beach destination?

Data that is descriptive but not numerical is considered qualitative data. It is frequently used to describe the qualities or traits of things, people, or occasions. Qualitative data examples include hues, textures, tastes, and perspectives.

On the other hand, quantitative data are numerical data that can be measured and statistically analysed. It is frequently used to describe numbers or amounts of different things. Measurements like height, weight, temperature, and test results are examples of quantitative data.

a. Statistical question about vacation destinations: What percentage of people who traveled for vacation last year went to a beach destination?

b. Statistical question about books: What is the average number of books read per month by individuals who report reading as a favorite hobby?

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Answer:

24 + c = 40

C= Chau’s height

Answer:

101

Step-by-step explanation:

substitute 5 in the x:

=18(5)+11

=90+11

=101