help help help!! with my math !!!!!!!!!!!!!

The percent abundance of the medium nails in the sample is given as follows:

27.07%.

The percent abundance is obtained applying the proportions in the context of the problem.

The total length of nails is given as follows:

67 x 2.5 + 18 x 5 + 10 x 7.5 = 332.5 cm.

The length relative to medium nails is given as follows:

18 x 5 = 90 cm.

Meaning that the percent abundance is given as follows:

90/332.5 x 100% = 27.07%.

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The required from Frack's city rate of miles, Seattle and Orlando are less expensive while Miami and Honolulu are more expensive.

Rate of change is defined as the change in value with rest to another value is called rate of change.

Here,
In Frank's city,
y = 0.3x + 2

The rate per mile is represented by the slope of the linear equation.
So,
m = $0.3 per mile

For Seattle

The rate per mile is given by the slope of the relation shown in the graph. So,
m = 3.2 - 2.4 / 6 - 2
m = $0.2 per mile

Similarly,
For Orlando, m = $0.25 per miles
For Miami, m = $0.4 per mile
For Honolulu m = $0.75 per mile

Thus, the required from Frack's city rate of miles, Seattle and Orlando are less expensive while Miami and Honolulu are more expensive.

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By answering the above question, we may state that Find any dots that expressions are distant from the other dots to identify outliers. They might be anomalies and need more research.

In mathematics, you can multiply, divide, add, or take away. The following is how an expression is put together: Numeric value, expression, and math operator The elements of a mathematical expression include numbers, parameters, and functions. It is feasible to use contrasting words and expressions. .  

You should check for the following data when interpreting a dot plot:

Determine the dot plot's lowest and maximum values by using the range concept.

Shape: Search for any patterns or groups of dots that could point to a certain data distribution.

Central Tendency: Locate the dot plot's centre to ascertain the typical value of the dataset. Finding the data's median or mean can be used to achieve this.

Find any dots that are distant from the other dots to identify outliers. They might be anomalies and need more research.

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27 ÷ 5 = 5.4

∴ 5.4 feet of ribbon goes to each bracelet.

Answer:

To calculate Mr. Dladla's gross profit per day, we first need to calculate his total revenue and total cost per month:

Total revenue per month = Selling price x Expected market share per month

Total revenue per month = R500 x (50% of 4500 customers) = R112,500

Total cost per month = Cost per course x Number of courses per month

Total cost per month = R300 x 20 days = R6,000

Gross profit per month = Total revenue per month - Total cost per month

Gross profit per month = R112,500 - R6,000 = R106,500

To calculate his gross profit per day, we can divide the gross profit per month by the number of days the training company opens per month:

Gross profit per day = Gross profit per month / Number of days per month

Gross profit per day = R106,500 / 20 days = R5,325 per day

Therefore, Mr. Dladla's gross profit per day is R5,325.

Step-by-step explanation:

The general form of the equation for the given circle centered at O(0, 0) is B. x² + y² - 41 = 0.

A circle is a round, two-dimensional shape with all points on its boundary equidistant from its center.

Since the center of the circle is O(0,0), the equation of the circle will have the form x² + y² + ax + by + c = 0. To find the values of a, b, and c, we can use the fact that point B(4, 5) lies on the circle. Substituting the coordinates of B into the equation and simplifying, we get:

4² + 5² + a4 + b5 + c = 0

16 + 25 + 4a + 5b + c = 0

41 + 4a + 5b + c = 0

We now have one equation with three variables, so we need more information. Since the center of the circle is (0,0), we know that the distance from the center to any point on the circumference is equal to the radius of the circle. The distance between points (0,0) and (4,5) is the length of the line segment joining them, which can be found using the distance formula:

[tex]\sqrt{(4-0)\² + (5-0)\²} = \sqrt{(16+25) }= \sqrt{41}[/tex]

Therefore, the radius of the circle is √(41). We can use this fact to eliminate one of the variables in the equation we derived earlier. Since point (0,0) lies on the circle, we can substitute its coordinates into the equation to get:

41 + 0a + 0b + c = 0

c = -41

Now we can substitute this value of c back into the equation we derived earlier to get:

41 + 4a + 5b - 41 = 0

4a + 5b = 0

Finally, we have two equations with two variables, which we can solve to get:

a = -5/4

b = 4/5

Substituting these values into the equation of the circle, we get:

x² + y² - 5x/4 + 4y/5 - 41 = 0

Multiplying by 20 to eliminate fractions, we get:

20x² + 20y² - 25x + 16y - 820 = 0

Simplifying, we get:

x² + y² - 25/4x + 4/5y - 41 = 0

Which is equivalent to:

x² + y² - 41 = 0

So the answer is B. x²+ y² - 41 = 0.

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The requried (a) median for the chocolate candy and nonchocolate candy sales are $3040 and $1566.5 respectively. (b) The range for the chocolate candy sales, the range is ($1941, $3454). For the non-chocolate candy sales, the range is (from 1,096 dollars to 2,892 dollars).

A histogram is a graphical representation of the distribution of a set of numerical data. It consists of a set of rectangles, where the area of each rectangle is proportional to the frequency (or count) of the observations falling within a particular interval, called a bin.

Here,
A. The interval for the median for each data set can be found by arranging the data in ascending order and finding the middle value. For the chocolate candy sales, the median falls in the interval of 2800-3,099 dollars. While for the Nonchocolate candy, it falls under 1300 -1599

The median for the chocolate candy sales  = $3040
The median for the Nonchocolate candy sales  = $1566.5

B. The range for each data set can be found by subtracting the minimum value from the maximum value. For the chocolate candy sales, the range is ($1941, to $3454). For the non-chocolate candy sales, the range is (from 1,096 dollars to 2,892 dollars).

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Answer:

120 because 20 x 6 = 120 when u take of sunday it will be 6 days

Step-by-step explanation:

Answer:

z=89

Step-by-step explanation:

42+z=131

take 42 away from both sides

z= 89

Answer:

z = 89

Step-by-step explanation:

42 + z = 131

z = 131 - 42

z = 89

Answer:

5 apples

Step-by-step explanation:

Answer:

The slope of the tangent line to the curve at the given point is -11/7.

Step-by-step explanation:

Differentiation is an algebraic process that finds the gradient (slope) of a curve.  At a point, the gradient of a curve is the same as the gradient of the tangent line to the curve at that point.

Given function:

[tex]4x^2+5xy+y^4=370[/tex]

To differentiate an equation that contains a mixture of x and y terms, use implicit differentiation.

Begin by placing d/dx in front of each term of the equation:

[tex]\dfrac{\text{d}}{\text{d}x}4x^2+\dfrac{\text{d}}{\text{d}x}5xy+\dfrac{\text{d}}{\text{d}x}y^4=\dfrac{\text{d}}{\text{d}x}370[/tex]

Differentiate the terms in x only (and constant terms):

[tex]\implies 8x+\dfrac{\text{d}}{\text{d}x}5xy+\dfrac{\text{d}}{\text{d}x}y^4=0[/tex]

Use the chain rule to differentiate terms in y only. In practice, this means differentiate with respect to y, and place dy/dx at the end:

[tex]\implies 8x+\dfrac{\text{d}}{\text{d}x}5xy+4y^3\dfrac{\text{d}y}{\text{d}x}=0[/tex]

Use the product rule to differentiate terms in both x and y.

[tex]\boxed{\dfrac{\text{d}}{\text{d}x}u(x)v(y)=u(x)\dfrac{\text{d}}{\text{d}x}v(y)+v(y)\dfrac{\text{d}}{\text{d}x}u(x)}[/tex]

[tex]\implies 8x+\left(5x\dfrac{\text{d}}{\text{d}x}y+y\dfrac{\text{d}}{\text{d}x}5x\right)+4y^3\dfrac{\text{d}y}{\text{d}x}=0[/tex]

[tex]\implies 8x+5x\dfrac{\text{d}y}{\text{d}x}+5y+4y^3\dfrac{\text{d}y}{\text{d}x}=0[/tex]

Rearrange the resulting equation in x, y and dy/dx to make dy/dx the subject:

[tex]\implies 5x\dfrac{\text{d}y}{\text{d}x}+4y^3\dfrac{\text{d}y}{\text{d}x}=-8x-5y[/tex]

[tex]\implies \dfrac{\text{d}y}{\text{d}x}(5x+4y^3)=-8x-5y[/tex]

[tex]\implies \dfrac{\text{d}y}{\text{d}x}=\dfrac{-8x-5y}{5x+4y^3}[/tex]

To find the slope of the tangent line at the point (-9, -1), substitute x = -9 and y = -1 into the differentiated equation:

[tex]\implies \dfrac{\text{d}y}{\text{d}x}=\dfrac{-8(-9)-5(-1)}{5(-9)+4(-1)^3}[/tex]

[tex]\implies \dfrac{\text{d}y}{\text{d}x}=\dfrac{72+5}{-45-4}[/tex]

[tex]\implies \dfrac{\text{d}y}{\text{d}x}=-\dfrac{77}{49}[/tex]

[tex]\implies \dfrac{\text{d}y}{\text{d}x}=-\dfrac{11}{7}[/tex]

Therefore, slope of the tangent line to the curve at the given point is -11/7.

The mathematical expression for 21 fewer stars than three times a number h is : 3h - 21

A mathematical expression is the collection of mathematical symbols that results from the proper combination of numbers and variables using operations like addition, subtract, multiplication, division, exponents, and other as-yet-unlearned operations and functions.

The given statement is-

21 fewer stars than three times a number h

so,

mathematical expression is:

3h - 21

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The area of triangle MNL is approximately 10.44 cm².

What is the sine rule?

The sine rule, also known as the law of sines, is a formula used in trigonometry to find the lengths of the sides and the measure of the angles of a triangle. It states that the ratio of the length of a side of a triangle to the sine of the angle opposite that side is the same for all three sides. In other words:

[tex]a/sin A = b/sin B = c/sin C[/tex]

where a, b, and c are the lengths of the sides of the triangle, and A, B, and C are the measures of the angles opposite those sides. The sine rule can be used to find the length of a side of a triangle or the measure of an angle if the other two sides and the included angle are known, or if two sides and the angle opposite one of them are known.

To find the area of triangle MNL, we need to first calculate the length of side NL using the sine rule:

sin(38°) / NL = sin(90°) / 4.8

NL = sin(38°) / sin(90°) * 4.8

NL = sin(38°) * 4.8

NL ≈ 2.9 cm

Now we can find the area of the triangle using the formula:

[tex]Area = (1/2) * base * height[/tex]

[tex]Area = (1/2) * 7.2 * 2.9[/tex]

Area ≈ 10.44 cm²

Therefore, the area of triangle MNL is approximately 10.44 cm².

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An equation to represent one way you can find how many miles Emily’s plane flew each hour is y = 182x.

In Mathematics, a proportional relationship can be defined as a type of relationship that generates equivalent ratios and it can be modeled or represented by the following mathematical expression:

y = kx

Where:

Assuming the variable m represent the miles flown each hour, an equation for the number of miles Emily’s plane flew each hour can be calculated as follows;

y = kx

y = (2184/12)x

y = 182x

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Complete Question:

Emily took an airplane trip. Her plane flew an equal number of miles each hour. Write an equation to represent one way you can find how many miles Emily's plane flew each hour.

Use this to help you:

Air travel time: 12 hours

Destination: 2,184 miles​

Answer:

x = 20

Step-by-step explanation:

x² − 1 = 399

x² = 400

x = 20

We can write the quadratic equation as -

y = - (x - 25)² + 625

The general form of a quadratic equation is -

y = ax² + bx + c

where -

a, b and c are constants.

Given is that Sameen wants to build a fence around a rectangular area of her yard. The graph shows the area {y} in square feet that she can surround with the fencing that she has, where the breadth is width {x} in feet of the rectangle.

The given coordinates on the parabola are -

(8, 336)

(42, 336)

(25, 625)

Here, the point (25, 625) represents the vertex (h, k) of the parabola.

We can write the equation of parabola as -

y = a(x - h)² + k

y = a(x - 25)² + 625

For the point (8, 336), we can write -

336 = a(8 - 25)² + 625

336 - 625 = a(8 - 25)²

a(8 - 25)² = - 289

a(- 17)² = -289

a = -289/289

a = -1

So, we can write the quadratic equation as -

y = - (x - 25)² + 625

Therefore, we can write the quadratic equation as -

y = - (x - 25)² + 625

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Answer:

The answer you're looking for is: (4, -9), (6, -9), (4, -1)

Step-by-step explanation:

When translating an image 90º counterclockwise you go one quadrant to the right and use the scale factor: (x, y) --> (y, -x).

When using this scale factor you switch the x and y coordinates and also make sure that x is the opposite operation, it doesn't always mean it's going to be negative.

In this case points (-9, -4), (-9, -6), and, (-1, -4) were translated to (4, -9), (6, -9), (4, -1) accordingly.

I hope this was helpful!

The minimum number of streetlights that can be installed along the street is 1641 + 1182 = 2823.

In Euclidean geometry, the distance between two points is defined as the length of the shortest path between them. This is often referred to as the "straight-line distance" or "Euclidean distance." It is calculated using the Pythagorean theorem, which states that in a right-angled triangle, the square of the length of the hypotenuse (the longest side) is equal to the sum of the squares of the lengths of the other two sides.

The total distance between A and C is the sum of the distances AB and BC:

AC = AB + BC = 1625 + 1170 = 2795 m

Since we need to install streetlights at points A, B, and C, there will be two segments of the street with streetlights:

From A to B, which has a distance of 1625 m

From B to C, which has a distance of 1170 m

We want to install streetlights along each segment with equal distance between the lights. Let's call the distance between each pair of adjacent streetlights "d".

For the first segment, there will be "n" streetlights, so the total distance covered by the streetlights will be (n-1)d. Similarly, for the second segment, there will be "m" streetlights, and the total distance covered by the streetlights will be (m-1)d.

The total distance covered by the streetlights should be equal to the distance AC, so we have:

(n-1)d + (m-1)d = AC

Substituting the values we know, we get:

1624d + 1169d = 2795

2793d = 2795

d = 2795/2793

d ≈ 0.999

We can round down to 0.99 to ensure that we don't have more streetlights than necessary.

Therefore, the distance between each pair of adjacent streetlights should be 0.99 m. To find the minimum number of streetlights required, we can divide the distance of each segment by 0.99 and round up to the nearest integer:

For the first segment: ceil(1625/0.99) = 1641

For the second segment: ceil(1170/0.99) = 1182

So the minimum number of streetlights that can be installed along the street is 1641 + 1182 = 2823.

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Answer: Two 1/6

Step-by-step explanation:

It takes two 1/6 to make the same amount as 1/3 because 1/6 is half of 1/3, so all it takes is two 1/6 to make 1/3.

Answer:

1/3 is equal to 2/6, so it takes 2 sixths to make the same amount as 1/3.

Answer:??? Bio?

Step-by-step explanation:give a good expample

There are 509 tourists only visited the LEGOLAND (of these three).

Mathematical expression is defined as the collection of the numbers variables and functions by using operations like addition, subtraction, multiplication, and division.

Now, To find the number of tourists who only visited LEGOLAND, we need to subtract the tourists who visited LEGOLAND and another theme park from the total number of tourists who visited LEGOLAND.

Calculation:

First, we can find the total number of tourists who visited LEGOLAND:

Total = Tourists who visited only LEGOLAND + Tourists who visited LEGOLAND and another park

Hence, Total = (Total visitors to LEGOLAND) - (Tourists who did not visit any of the parks)

Total = 1,033 - (256 + 267 + 75 + 93 - 52 - 82 - 33)

Total = 1033 - 260

Total = 509

Hence, There are 509 tourists only visited the LEGOLAND (of these three).

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Answer:

Two monomials with the quotient 24a2b5 are:

12a b³

48a³ b²

Step-by-step explanation:

Answer:

t = 23/32 + (i sqrt(623))/32 or t = 23/32 - (i sqrt(623))/32

Step-by-step explanation:

Solve for t:

16 t^2 - 23 t + 18 = 0

Divide both sides by 16:

t^2 - (23 t)/16 + 9/8 = 0

Subtract 9/8 from both sides:

t^2 - (23 t)/16 = -9/8

Add 529/1024 to both sides:

t^2 - (23 t)/16 + 529/1024 = -623/1024

Write the left hand side as a square:

(t - 23/32)^2 = -623/1024

Take the square root of both sides:

t - 23/32 = (i sqrt(623))/32 or t - 23/32 = -(i sqrt(623))/32

Add 23/32 to both sides:

t = 23/32 + (i sqrt(623))/32 or t - 23/32 = -(i sqrt(623))/32

Add 23/32 to both sides:

Answer: t = 23/32 + (i sqrt(623))/32 or t = 23/32 - (i sqrt(623))/32

Answer: -7

Step-by-step explanation:

-2x+5=19

-5 |-5

-2x=14

-2x/-2 = 14/-2

x = -7

The numeric values of the composite functions are given as follows:

The composite function of f(x) and g(x) is given by the equation with rile presented as follows:

(f ∘ g)(x) = f(g(x)).

For the composition of two functions, we have that the output of the inner function, which for this example is g(x), serves as the input of the outer function, which for this example is f(x).

Hence the functions are given as follows:

At x = 3, the numeric values are given as follows:

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The value of the double integral of y over D is 160.

The region D is defined as the image of the rectangle R under the transformation Φ(u,v) = (u², u+v). To find the integral of y over D, we need to express y as a function of u and v, and then compute the double integral in terms of u and v.

From the definition of Φ, we have:

u² = x

u + v = y

Solving for v in terms of u and y, we get:

v = y - u

Substituting this expression for v into the second equation, we get:

y = u + (y - u) = y

Therefore, y does not depend on u, and we can write:

y = f(v) = v + u

The integral of y over D can then be written as:

∫∫D y dA = ∫∫R f(v) |J| dA

where J is the Jacobian of the transformation Φ.

The Jacobian of Φ is given by:

J = ∂(x,y)/∂(u,v) =

| 2u 1 |

| 1 1 |

The determinant of J is:

|J| = 2u - 1

Substituting this expression for |J| and the expression for f(v) into the integral, we get:

∫∫D y dA = ∫∫R (v + u)(2u - 1) dudv

To evaluate this integral, we can integrate first with respect to u and then with respect to v:

∫∫D y dA = ∫[0,5]∫[1,9] (v + u)(2u - 1) dudv

= ∫[0,5] [(v+9)³/3 - (v+1)³/3] dv

= [(5+9)⁴/12 - (1+9)⁴/12]

= 480/3

= 160

Therefore, the value of the double integral of y over D is 160.

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Complete question:

Let D= Ф(R), where Φ(u,v)= (u², u+v) and R= [1,9] × [0,5].

Calculate [tex]\mathrm{\int \: \int \: _D ydA}[/tex]

The value if x in the inequality is x > -2 2/13

The relationship between two values that are not equal is defined by inequalities. Inequality means not equal.

greater than is represented by >

less than is represented by <

greater than or equal to is represented by ≥

less than or equal to is represented by ≤

-5/7(21x+35)<1/3(9-6x)

-15x -25 < 3-2x

collect like terms

-25-3 < 15x -2x

-28 < 13x

-28/13 < x

therefore x > -28/13

x> - 2 2/13

therefore the value of x in the inequality is x > -2 2/13

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The table that shows proportional relationship is x = 1,3,4,5 and y = 50, 150, 200,250 ( table 1).

The term proportionality describes any relationship that is always in the same ratio. The number of apples in a crop, for example, is proportional to the number of trees in the orchard, the ratio of proportionality being the average number of apples per tree.

To determine the proportionality the ratio of x toby must be thesame Ina table

in table 1

x/y = 1/50 = 3/150 = 4/200 = 5/250 = 1/50

table 1 show proportional relationship

in table 2

3/1.5 is not equal to 7/3 , therefore table 2 does not show proportional relationship

in table 3

1/1.5 is not equal to 3/6 , therefore table 3 does not show proportional relationship

therefore the table that show proportional relationship is table 1

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Answer: [tex]\sqrt{\text{x}-7}-10[/tex]

Work Shown:

[tex]f(\text{x}) = \sqrt{\text{x}-6}-10\\\\f(\text{x}-1) = \sqrt{\text{x}-1-6}-10\\\\f(\text{x}-1) = \sqrt{\text{x}-7}-10[/tex]

Explanation:

I replaced each copy of x with x-1. Then I combined like terms. Doing this will shift the graph 1 unit to the right.

The selling price is the cost a customer pays for a good or service.

(1) Profit % = 25% . (2) Profit % = 6% . (3) Profit = Rs.9712 .

(4) Profit = Rs.9712 . (5) Loss % =  7.5% .

The amount a buyer pays for a good or service is known as the selling price.

It may differ based on the price that buyers are prepared to pay, the seller's acceptance threshold, and how competitive the price is in relation to those of other companies in the market.

The cost price of an item is the sum paid for it or the cost at which it was produced. C.P. stands for "cost price." Selling Price: The selling price of a good is the price at which it is sold.

So, the table would be:

(1)

CP = Rs.8000 , SP = Rs.10000

if SP > CP, we have profit.

Profit = SP - CP = 10000 - 8000 = Rs.2000 .

Profit % = (Profit * 100) / CP = (2000 * 100) / 8000 = 25% .

(2)

SP = Rs.6890 , Profit = Rs.390 .

CP = SP - Profit = 6890 - 390 = Rs.6500 .

Profit % = (Profit * 100) / CP = (390 * 100) / 6500 = 6% .

(3)

CP = Rs.25000 , Loss = Rs.1000 .

SP = CP - Loss = 25000 - 1000 = Rs.24000 .

Loss % = (Loss * 100) / CP = (1000 * 100) / 25000 = 4% .

(4)

CP = Rs.48560 , Profit = 20% .

SP = CP * (100 + Profit%) / 100 = (48560 * 120) / 100 = Rs.58272 .

Profit = SP - CP = 58272 - 48560 = Rs.9712 .

(5)

CP = Rs.28320 , SP = Rs.26196 .

CP > SP, we have a Loss.

Loss = CP - SP = 28320 - 26196 = Rs.2124 .

Loss % = (Loss * 100) / CP = (2124 * 100) / 28320 = 7.5% .

Therefore, the selling price is the cost a customer pays for a good or service.

(1) Profit % = 25% . (2) Profit % = 6% . (3) Profit = Rs.9712 .

(4) Profit = Rs.9712 . (5) Loss % =  7.5% .

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Complete question:

Find the profit or loss and complete the table.

Cost Price Selling Price Profit () Loss

Profit Loss

Percentage Percentage

6000

1000

6000

(a) 5000

(b) 6200

(c) 2400

(d) 1900

400

300

1590

190​