The solution to the equation 3(x + 2) = 2(2x + 2) is
a) 4
b) 2
c) 3
d) 0

Answer:

C. 52.8 ft.

Step-by-step explanation:

Calculate the perimeter of the garden

\(P=2l+2w=2(15.6)+2(10.8)=31.2+21.6=52.8\)

The perimeter represents the length of the fencing material she needs

Hope this helps

Answer:

52.8 if u give me brainliest tht will be so help full:)

Step-by-step explanation:

Answer:

1695.6m

Step-by-step explanation:

The equation for how they find the volume of a cylinder is V=πr^2h

so the radius is 6x6=36

then 36x3.14=113.04

then you multiply that by 15

113.04x15=1695.6

The unit are M

Answer:

8/5 is the answer

Step-by-step explanation:

7/10+9/10

7+9/10( because if the lcm is same in both the expression we can write one of them and do according to the sign)

16/10( adding the number)

8/5( dividing the numbers and finding the value in fraction form)

OR,

16/10

1.6( dividing and finding the value in decimal form)

cos^-1(x) represents the inverse of cos(x).

The quadratic function for this problem is defined as follows:

y = 4(x + 3)² - 2.

The quadratic function of vertex(h,k) is given by the rule presented as follows:

y = a(x - h)² + k

In which:

The vertex is the turning point of the function, hence the coordinates in this problem are given as follows:

(-3,-2).

Hence:

y = a(x + 3)² - 2.

When x = -2, y = 2, hence the leading coefficient a is obtained as follows:

2 = a(-2 + 3)² - 2

a = 4

Hence the equation is given as follows:

y = 4(x + 3)² - 2.

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A leaking faucet in the S&E building lab, dripping at a rate of one drop per second, will result in a water loss of approximately 4,725 liters in one year.

To calculate the amount of water lost in one year, we need to determine the number of drops per year and then convert it to liters. Since the faucet drips at a rate of one drop per second, there are 60 drops in a minute (60 seconds), which totals to 3,600 drops in an hour (60 minutes).

In a day, there would be 86,400 drops (24 hours * 3,600 drops). Considering a year of 365 days, the total number of drops would be approximately 31,536,000 drops (86,400 drops * 365 days). To convert the number of drops to liters, we need to multiply the total number of drops by the volume of each drop.

Given that each drop contains 0.150 milliliters, we convert it to liters by dividing by 1,000, resulting in 0.00015 liters per drop. Multiplying the total number of drops by the volume per drop, we find that the total water loss is approximately 4,725 liters (31,536,000 drops * 0.00015 liters/drop).

Therefore, in one year, the leaking faucet in the S&E building lab would result in a water loss of approximately 4,725 liters.

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We have shown that cX is exponential with parameter λ/c when X is an exponential random variable with parameter λ and c > 0.

To show that cX is exponential with parameter λ/c when X is an exponential random variable with parameter λ, and c>0, we will use the CDF method:

1. Define the transformation: Let Y = cX be a function of the random variable X, where c > 0.

2. Find the CDF of Y: We want to find P(Y ≤ y), which is equal to P(cX ≤ y) or P(X ≤ y/c).

3. Express CDF of Y in terms of X: Since P(X ≤ y/c) is the CDF of X at y/c, we have FY(y) = FX(y/c).

4. Find the PDF of X: The exponential distribution has the PDF fX(x) = λ * exp(-λx) for x ≥ 0.

5. Differentiate the CDF of Y to find its PDF: To find fY(y), we differentiate FY(y) with respect to y. Using the chain rule, we have:

fY(y) = d(FX(y/c))/dy = fX(y/c) * (1/c)

6. Substitute the PDF of X: Now, we replace fX(y/c) with its exponential form λ * exp(-λ(y/c)):

fY(y) = (λ * exp(-λ(y/c))) * (1/c)

7. Simplify the expression: fY(y) = (λ/c) * exp(-λ(y/c))

This is the PDF of an exponential distribution with parameter λ/c. Therefore, cX is exponential with parameter λ/c when X is an exponential random variable with parameter λ and c > 0.

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Answer:

Approximately \(12.9\; \rm km \cdot h^{-1}\), assuming that this orbit is circular.

Step-by-step explanation:

The question is asking for a tangential velocity with the unit \(\rm km \cdot h^{-1}\). The unit of the given distance is already in \(\rm km\) as required. Convert the unit of the orbital period to hours:

\(\begin{aligned}T &= 1230\; \text{day} \times \frac{24\; \rm h}{1\; \text{day}}. = 29520\; \rm h\end{aligned}\).

Calculate the angular velocity \(\omega\) of this planet from its orbital period:

\(\begin{aligned}\omega &= \frac{2\, \pi}{T} \\ &= \frac{2\, \pi}{29520\; \rm h} \approx 2.1285 \times 10^{-4}\; \rm h^{-1}\end{aligned}\).

Given the radius \(r\) of the orbit of this planet, the tangential velocity \(v_{\perp}\) of this planet would be:

\(\begin{aligned}v_{\perp} &= \omega\, r \\ &\approx 2.1285 \times 10^{-4}\; \rm h^{-1} \times 2.22\times 10^{7}\; \rm km \\ &\approx 4.73 \times 10^{3}\; \rm km \cdot h^{-1}\end{aligned}\).

If the orbit of this planet is circular, the velocity of the planet would be equal to its tangential velocity: \(4.73\times 10^{3}\; \rm km \cdot h^{-1}\).

In multiple regression analysis, the correlation among the independent variables is termed multicollinearity

Multicollinearity in a multivariate regression model refers to the correlations between two or more independent variables. Multicollinearity can lead to skewed or false results when a researcher or analyst attempts to determine how effectively each independent variable can be used to predict or understand the dependent variable in a specific statistical model.

It is the term which is generally used to describe the situation in which two or more explanatory variables in a multiple regression model have strong linear correlations with one another but not with the dependent variable. Many times, the creation of new dependent variables that are reliant on other variables can also result in multicollinearity.

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This answer is Nonlinear

Answer:

3

Step-by-step explanation:

The equation of a perpendicular line to m = - \(\frac{x}{3}\) must have a slope that is the negative reciprocal of the original slope.

m perpendicular = - \(\frac{1}{\frac{-1}{3} }\)

Simplify the result.

m perpendicular = 3

The answer is:

3

Work/explanation:

If two lines are perpendicular to each other, their slopes will be negative inverses.

The slope of the given line is \(\sf{-\dfrac{1}{3}}\).

The negative inverse of that is 3; so I changed the sign from negative to positive, and flipped the number.

The differentiation of function x^2 + y^2 = 100 is -3/4. The differentiation of function x^2 + 5y = 45 is -2. The differentiation of function x^2 - 3xy + 7y = 5 is 4/11.

Differentiating both sides of x^2 + y^2 = 100 with respect to x using implicit differentiation, we get:

2x + 2y(dy/dx) = 0

Solving for dy/dx, we get:

dy/dx = -x/y

At point (6,8), x = 6 and y = 8, so:

dy/dx = -6/8 = -3/4

Differentiating both sides of x^2 + 5y = 45 with respect to x using implicit differentiation, we get:

2x + 5(dy/dx) = 0

Solving for dy/dx, we get:

dy/dx = -2x/5

At point (5,2), x = 5, so:

dy/dx = -2(5)/5 = -2

Differentiating both sides of x^2 - 3xy + 7y = 5 with respect to x using implicit differentiation, we get:

2x - 3y - 3x(dy/dx) + 7(dy/dx) = 0

Solving for dy/dx, we get:

dy/dx = (3x - 2y)/7x - 3y

At point (2,1), x = 2 and y = 1, so:

dy/dx = (3(2) - 2(1))/[7(2) - 3(1)] = 4/11

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--The complete question is, Find dy/dx by implicit differentiation and then evaluate at the given point:

a. x^2 + y^2 = 100, point (6,8)

b. x^2 + 5y = 45, point (5,2)

c. x^2 - 3xy + 7y = 5, point (2,1)--

So, The correct match of these quadratic equations are
Equation A has a solution x = 3 and x = 0.

Equation B has a solution x = 2 and x = 4.

Equation C has a solution x = -3 and x = 0.

Equation D has a solution x = 4 and x = 0.

According to the equation

we have given that the some equation with there values of the x and we have to find and match the correct statement with the given values of x.

So, For this purpose, we know that the

The given quadratic equations are:

A. 24x – 6x^2 = 0 and 2x(3x) = 0 with solution x = 0, x = -3

B. 14x – 7x^2 = 0 and 6x(4 – x) = 0 with solution x = 0, x = 4

C. 2x^2+ 6x = 0 and x(4 – x) = 0 with solution x = 0, x = 4

D. 4x – x^2 = 0 and 7x(2 – x) = 0 with solution x = 0, x = 2

And now we solve it

So,

Take A.

24x – 6x^2 = 0 and 2x(3x) = 0

6x(3 -x) = 0 And 6x^2 = 0

here x = 3 and x = 0.

And

Take B.

14x – 7x^2 = 0 and 6x(4 – x) = 0

7x(2 -x) = 0 And 6x(4 – x)= 0

here x = 2 and x = 4.

And

Take C.

2x^2+ 6x = 0 and x(4 – x) = 0

2x(x +3) = 0 And x(4 – x)= 0

here x = -3 and x = 0.

And

Take D.

4x – x^2 = 0 and 7x(2 – x) = 0

x(4 -x) = 0 And 7x(2 – x)= 0

here x = 4 and x = 0.

So, The correct match of these quadratic equations are
Equation A has a solution x = 3 and x = 0.

Equation B has a solution x = 2 and x = 4.

Equation C has a solution x = -3 and x = 0.

Equation D has a solution x = 4 and x = 0.

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Answer:

y = -bx/a + b

Step-by-step explanation:

Report if wrong

-Stylez-

Answer:

because the angle C is 90, because in the triangle the angle of the barrier is equal to 90

Answer:

that is corresponding

To find the amount of sand that a box will hold, we would use the measure of volume.

Volume is the amount of space that an object or substance takes up in three dimensions, typically measured in cubic units. In the case of the box being filled with sand, we would use the volume of the box to determine how much sand it can hold. This can be calculated by multiplying the length, width, and height of the box together, which gives the total cubic units of volume. The resulting value would be in cubic units such as cubic inches, cubic feet, or cubic meters, depending on the units of measurement used.

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Answer:

x<-10

Step-by-step explanation:

4x-12-5x>-2

-1x-12>-2

    +12 +12

-1x>10

-1x/-1>10/-1

x<-10

u switch the inequality when the number is divided by a negative number btw:) hope this helped:D

Yes, the pole will fit in the box when kept diagonally.

In order to fit the pole in rectangular prism or cuboid, it has to be kept diagonally. Now, we need to calculate the length of body diagonal of cuboid. The length of body diagonal of cuboid should be greater than pole to fit it.

The length of body diagonal of cuboid can be calculated by the formula -

Diagonal = √(l² + b² + h²)

Keep the values in formula to find the diagonal of rectangular prism

Diagonal = √(10² + 9² + 8²)

Taking square of the three numbers to find the diagonal of rectangular prism

Diagonal = √100 + 81 + 64

Taking sum of numbers present on Right Hand Side of the equation

Diagonal = √245

Taking square root of the number

Diagonal = 15.65 feet

Hence, as the diagonal of rectangular prism is greater than shower curtain pole, it will definitely fit.

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Question: In a sale, the price of a book is reduced by 25%. The price of the book in the sale is £12. Work out the original price of the book

Answer: £16

Step-by-step explanation:

To determine the original price of the book, we can use the fact that the sale price is 75% (100% - 25%) of the original price. Let's denote the original price as x.

75% of x = £12

To solve for x, we can set up the equation:

0.75x = £12

To isolate x, we divide both sides of the equation by 0.75:

x = £12 / 0.75

x = £16

Therefore, the original price of the book was £16.

The moment of inertia of a triangle about its centroidal axis is I = (1/36)b\(h^{3}\).

To determine the moment of inertia of a triangle about an axis passing through its center, we need to know the mass distribution and dimensions of the triangle. The moment of inertia depends on both the shape and mass distribution of the object.

Assuming the triangle is a 2D shape lying in the x-y plane, with its base parallel to the x-axis and its apex at the origin (0, 0), we can calculate the moment of inertia about the axis passing through its center.

The formula for the moment of inertia of a triangle about its centroidal axis is given by:

I = (1/36)b\(h^{3}\)

where I is the moment of inertia, b is the base length of the triangle, and h is the height of the triangle.

Note that this formula assumes a uniform mass distribution within the triangle.

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Answer:

15 percent of 160 is 24, so $24

Rounding this approximation to the nearest whole number, we get:

V_metal ≈ 157 cubic inches. None of the given options match this estimation.

To estimate the amount of metal in the tank, we need to calculate the surface area of the metal and then multiply it by the thickness of the metal.

The surface area of the top and bottom of the tank can be calculated as the area of a circle, which is given by the formula A = πr². Since the radius of the tank is 10 inches, the area of each circular end is:

A_top_bottom = π(10)² = 100π square inches

The surface area of the side of the tank can be calculated as the lateral surface area of a cylinder, which is given by the formula A = 2πrh, where r is the radius and h is the height. In this case, the height is 20 inches, and the radius is 10 inches. Therefore, the lateral surface area is:

A_side = 2π(10)(20) = 400π square inches

The total surface area of the metal is the sum of the top, bottom, and side surface areas:

A_total = A_top_bottom + A_side = 100π + 400π = 500π square inches

Since the thickness of the metal is 0.1 inches, we can estimate the volume of the metal by multiplying the surface area by the thickness:

V_metal = A_total × 0.1 = 500π × 0.1 = 50π cubic inches

To find a numerical approximation for the volume, we can use the value of π as 3.14159:

V_metal ≈ 50 × 3.14159 ≈ 157.0795 cubic inches

Rounding this approximation to the nearest whole number, we get:

V_metal ≈ 157 cubic inches

None of the given options match this estimation. It seems there might be an error in the available options.

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Answer:

46

Step-by-step explanation:

length x width x height

7 x 5 x 3

Answer: surface area = 142

Volume = 105

* make sure to add labels (units^2, etc.)

Step-by-step explanation:

Area = length x height

Volume = length x width x height

Answer:

G = 6(2)^n

Step-by-step explanation:

a) At 1 month he will have 12 guppies, at 2 months he will have 24 guppies and at 3 months he will have 48 guppies.

b) G = 6(2)^n

This is following the exponential formula.

c) G = 6(2)^6.5 = 543 guppies

d) At this rate, there will be no room for the guppies to continue growing.

The system of the equations are:

y = 10 + 4x

y = 25 + x

The height of tree is 30 inches tall.

The graph is given below.

The solution is (5, 30).

An equation is a mathematical statement that is made up of two expressions connected by an equal sign.

Example:

2x + 4 = 8 is an equation

We have,

Maple tree:

The maple tree that is 10 inches tall is

growing 4 inches per month,

This can be written as,

y = 10 + 4x _____(1)

Where y is the height of the tree.

Oak tree:

The oak tree is 25 inches tall and is growing 1 inch per

month.

This can be written as,

y = 25 + x ______(2)

Where y is the height of the tree.

Now,

From (1) and (2),

In a few months, the two trees will be the same height.

So,

10 + 4x = 25 + x

4x - x = 25 - 10

3x = 15

x = 5

Now,

y = 10 + 4x = 10 + 4 x 5 = 10 + 20 = 30

y = 25 + x = 25 + 5 = 30

Thus,

The height of tree is 30 inches tall.

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The Area Ratio is 1.5. and Perimeter Ratio is 1.22. The estimated overall cost for the proposed 15,000 SF warehouse is $150,000.

To perform a line by line estimate for the proposed warehouse, we'll calculate the area and perimeter ratios between the existing and proposed warehouses. We'll then use these ratios to estimate the overall cost for the proposed 15,000 square feet (SF) warehouse.

Given: Existing Warehouse:

Area: 10,000 SF

Perimeter: 410 LF

Proposed Warehouse:

Area: 15,000 SF

Perimeter: 500 LF

First, let's calculate the area ratio:

Area Ratio = Proposed Area / Existing Area

Area Ratio = 15,000 SF / 10,000 SF

Area Ratio = 1.5

Next, let's calculate the perimeter ratio:

Perimeter Ratio = Proposed Perimeter / Existing Perimeter

Perimeter Ratio = 500 LF / 410 LF

Perimeter Ratio = 1.22 (rounded to two decimal places)

We'll now use these ratios to estimate the overall cost for the proposed 15,000 SF warehouse. Since we don't have specific cost figures, we'll assume a linear relationship between the area and cost.

Cost Estimate = Existing Cost * Area Ratio

Let's assume the existing cost is $100,000.

Cost Estimate = $100,000 * 1.5

Cost Estimate = $150,000

Therefore, the estimated overall cost for the proposed 15,000 SF warehouse is $150,000.

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Solution for Part A: 10.53% of the total students surveyed like both watching television and reading. Solution for part B: all the students who do not like watching TV, 67% of them also do not like reading.

The probability that the students who do not like watching TV, 67% of them also do not like reading. We can calculate it in the following manner.

To create a two-way table, we can use the information given in the survey:

Watching         TV        Not Watching TV     Total

Reading           20              60                      80

Not Reading   70               40                      110

Total                90               100                    190

Part A:

To find the percentage of students who like both watching television and reading, we look at the number of students who like watching TV and reading, which is 20, and divide it by the total number of students surveyed, which is 190. Then, we multiply the result by 100 to express it as a percentage:

(20/190) x 100 = 10.53%

Therefore, 10.53% of the total students surveyed like both watching television and reading.

Part B:

To find the probability that a student who does not like watching television also does not like reading, we look at the number of students who do not like watching TV and do not like reading, which is 40, and divide it by the total number of students who do not like watching TV, which is 40 + 20 = 60.

Therefore, the probability that a student who does not like watching television also does not like reading is:

40/60 = 2/3 or 0.67

This means that out of all the students who do not like watching TV, 67% of them also do not like reading.

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The value of linear equation which representing the relationship between x, the number of months of service, and y, the total amount paid in dollars by an customer is,

⇒ y = 150x

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

Given that;

For new customers, there is an additional one-time $150 service fee.

Now, Let the number of months of service = x

And, the total amount paid in dollars by an customer = y

Hence, The correct linear equation is,

⇒ y = 150x

Thus, The value of linear equation which representing the relationship between x, the number of months of service, and y, the total amount paid in dollars by an customer is,

⇒ y = 150x

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