Hello im new to brainly and i needed some help becuase i dont understand the question.

Answer:

A factorial is the product of all positive integers from 1 to a given number. In this case, the given number is 8, so the factorial would be:

8 x 7 x 6 x 5 x 4 x 3 x 2 x 1

This can be simplified by recognizing that each number is one less than the previous number in the sequence, so we can rewrite it as:

8! = 8 x 7 x 6 x 5 x 4 x 3 x 2 x 1

where the exclamation mark denotes a factorial. Thus, the given expression can be written as 8!

In this case, the researchers have been following the development of a sample of 11-year-old children since 1932, which is a very long period of time, making it a classic example of a longitudinal study

The type of study that the researchers in Scotland are conducting is a longitudinal study. Longitudinal studies involve following a group of individuals over an extended period of time, often years or even decades, in order to observe changes or continuity in their development, behaviors, or other characteristics.Longitudinal studies are considered to be one of the most powerful research designs for understanding how individuals change over time. By following a group of people over an extended period, researchers can gain insight into how different factors, such as social, environmental, and biological, interact to shape development.

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The minimum surface area of fabric needed for the sleeve is approximately 628.32 cm².

Based on the given model arm, a right circular cylinder would best represent the model for the sleeve.

To calculate the minimum surface area of fabric needed for the sleeve, we need to find the lateral surface area of the right circular cylinder.

The lateral surface area of a right circular cylinder is given by the formula:

Lateral surface area = 2πrh

where r is the radius of the cylinder, h is the height of the cylinder.

In this case, the height of the cylinder needs to be 20 cm (to cover the distance from the shoulder to the elbow), and the radius can vary depending on the desired fit. Let's assume a radius of 5 cm for the purposes of this calculation.

Plugging in the values, we get:

Lateral surface area = 2π(5 cm)(20 cm)

= 628.32 cm²

Therefore, the minimum surface area of fabric needed for the sleeve is approximately 628.32 cm².

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(a) The triangle is a right triangle when x is equal to 24.

(b) The side lengths do not form a Pythagorean triple.

(a) To determine when the triangle is a right triangle, we can apply the Pythagorean theorem, which states that in a right 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.

Using the given side lengths, we have:

5^2 + 7^2 = x^2

Simplifying the equation:

25 + 49 = x^2

74 = x^2

To find the value of x, we take the square root of both sides:

x = √74

Approximating the square root of 74, we get:

x ≈ 8.60

Therefore, when x is approximately 8.60, the triangle is a right triangle.

(b) For the side lengths to form a Pythagorean triple, they must satisfy the condition of the Pythagorean theorem. In this case, we have:

5^2 + 7^2 = x^2

Simplifying the equation:

25 + 49 = x^2

74 = x^2

Since the sum of the squares of the two smaller sides (25 + 49 = 74) is not equal to the square of the longest side (x^2 = 74), the side lengths of 5, 7, and x do not form a Pythagorean triple.

In conclusion, the triangle is a right triangle when x is equal to approximately 8.60, and the side lengths do not form a Pythagorean triple.

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Answer:

so

Step-by-step explanation:

Let's call the length of each of the other two sides x. Since the triangle is isosceles, it has two sides of equal length. Therefore, the perimeter of the triangle can be expressed as 6 + x + x Simplifying this equation, we get 2x + 6 We know that the perimeter is 22 cm so we can set up an equation and solve for x. 22 = 2x + 6 Subtracting 6 from both sides, we get 16 = 2x Dividing both sides by 2, we get x=8

1. The ratio of the surface areas of the two similar solids is 3. 2. The ratio of the volumes of the two similar solids is 3.

Surface area is a measure of the total area of the surface of a three-dimensional object. It is the sum of the areas of all the faces, sides, and bases of the object. Surface area is expressed in square units, such as square meters (m²) or square feet (ft²).

The formula for calculating the surface area of a particular object depends on its shape. Some common shapes and their formulas for surface area include:

Rectangular prism: Surface area = 2lw + 2lh + 2wh, where l is the length, w is the width, and h is the height.

Cube: Surface area = 6s², where s is the length of one side.

Sphere: Surface area = 4πr², where r is the radius.

Cylinder: Surface area = 2πr² + 2πrh, where r is the radius and h is the height.

Cone: Surface area = πr² + πrl, where r is the radius and l is the slant height.

1. To find the ratio of the surface areas of two similar solids, we need to use the fact that the ratio of the surface areas is equal to the square of the ratio of their corresponding side lengths. Since the solids are similar, their corresponding side lengths are in proportion.

Let's call the ratio of the corresponding side lengths "r". Then, we have:

Ratio of surface areas = r²

To find "r", we can use the fact that the ratio of the volumes of two similar solids is equal to the cube of the ratio of their corresponding side lengths. Therefore:

(Ratio of side lengths)³ = Ratio of volumes

Let's call the ratio of the corresponding side lengths "k". Then, we have:

k³ = 45/15 = 3

k = ∛3

Now, we can find the ratio of surface areas:

Ratio of surface areas = (corresponding side length ratio)²

Ratio of surface areas = (∛3)² = 3

Therefore, the ratio of the surface areas of the two similar solids is 3.

2. To find the ratio of the volumes of the two similar solids, we simply divide the larger volume by the smaller volume:

Ratio of volumes = 45/15 = 3

Therefore, the ratio of the volumes of the two similar solids is 3.

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The value of the function f(x) at x = 2 is 48.

The question asks us to find the value of the function f(x) = 4[tex]x^3[/tex] at x = 2 and its derivative f'(x) at x = 2.

The value of the function f(x) at x = 2, we simply plug in x = 2 into the function and evaluate:

f(2) = 4[tex](2)^3[/tex] = 4(8) = 32

Therefore,

The value of the function f(x) at x = 2 is 32, which we can write as f(2) = 32.

To find the derivative of the function f(x) at x = 2, we first need to find the general formula for the derivative of f(x), which we can do using the power rule for derivatives.

The power rule states that

To find the derivative of f(x) at x = 2, we simply plug in x = 2 into the formula for f'(x) that we just found:

f'(2) = [tex]12(2)^2[/tex] = 48

Therefore,

The derivative of the function f(x) at x = 2 is 48, which we can write as f'(2) = 48To find the derivative of the function

f'(x) = 12[tex]x^2[/tex]

To find the value of f(2), we can simply plug in x = 2 into the original function:

f(2) = 4[tex](2)^3[/tex] = 32

To find the value of f'(2), we can plug in x = 2 into the derivative we just found:

f'(2) = 12[tex](2)^2[/tex] = 48

Therefore,

f(2) = 32 and f'(2) = 48.

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The IQR is approximately 1 unit.

Yes, you can use the box plot to find the IQR (Interquartile Range).

The IQR is the distance between the upper quartile (Q3) and the lower quartile (Q1) of the data. In a box plot, Q1 is the bottom of the box, and Q3 is the top of the box. The IQR is the height of the box.

Therefore, in the given box plot, you can find the IQR by measuring the height of the box and calculating the difference between Q3 and Q1.

The length of the whiskers and the positions of the outliers are not used in calculating the IQR.

So, looking at the box plot, we can see that the height of the box is approximately 4 units (the units are not specified in the question).

The bottom of the box (Q1) is at approximately 3 units, and the top of the box (Q3) is at approximately 7 units.

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The rate of change of a function as x approaches infinity is determined by the leading term in the function.

For f(x) = 2x - 10, the leading term is 2x.

For g(x) = 16x - 4, the leading term is 16x.

For h(x) = 3x^2 - 7x + 8, the leading term is 3x^2.

Since the coefficient of the leading term in h(x) is positive, and it has a higher degree than the leading terms of f(x) and g(x), h(x) has the greatest rate of change as x approaches infinity.

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Answer is: 3,984.375 cubic inches

To help you calculate the volume of the aquarium. Using the formula

V = L x W x H, where V is volume, L is length, W is width, and H is height:

Length (L) = 25 inches
Width (W) = 12.5 inches (12 + 0.5)
Height (H) = 12.75 inches (12 + 3/4)

Now, plug these values into the formula:

Volume (V) = 25 x 12.5 x 12.75
V = 3,984.375 cubic inches

The volume of the aquarium is 3,984.375 cubic inches.

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The function f(x) = x² + 12x - 3 has two distinct real roots and no rational or complex roots. The possible rational roots are ±1 and ±3, but they are not actual roots of the equation.

To find the number of complex zeros and possible rational zeros of the function f(x) = x² + 12x - 3 = 0, we can use the same methods as in the previous question.

According to the rational root theorem, any rational root of the polynomial must be of the form p/q, where p is a factor of the constant term (-3) and q is a factor of the leading coefficient (1). The possible rational roots are therefore ±1, ±3.

To determine if there are any complex roots, we can use the quadratic formula. The solutions to the equation f(x) = 0 are given by

x = (-b ± √(b² - 4ac)) / 2a

Plugging in the coefficients of the polynomial, we get

x = (-12 ± √(12² - 4(1)(-3))) / 2(1)

x = (-12 ± √(156)) / 2

x = -6 ± 3√(13)

Since the discriminant (b² - 4ac) is positive, the square root is real, and the roots are two distinct real numbers. Therefore, there are no complex roots.

The possible rational roots we found earlier, ±1 and ±3, are not actual roots of the equation, since plugging them into the equation does not give us zero. Therefore, there are no rational roots either.

In conclusion, the equation f(x) = x² + 12x - 3 = 0 has two distinct real roots and no complex or rational roots.

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--The given question is incomplete, the complete question is given

" State the number of complex zeros and the possible rational zeros for the function f(x) = x² + 12x -3 = 0

show your work"--

Check the picture below.

Answer:

C (12)

Step-by-step explanation:

The absolute maximum occurs at x = -2 and the absolute minimum occurs at x = 0 and x = 2 and  The absolute maximum is at x = -2 and the absolute minimum is at x = 0, 2.
a. The local minimum is at x=2 and there is no local maximum.
b. The local maximum is at x=1 and the local minimum is at x=-2 and x=2.
c. The absolute maximum is at x=0 and the absolute minimum is at x=2.
(Note: To find the absolute maximum and minimum, we need to evaluate the function at the critical points and endpoints of the interval. The critical points are x=0 and x=2, and the endpoints are x=-2 and x=2. The absolute maximum is the largest value among these, which is f(0)=0. The absolute minimum is the smallest value among these, which is f(2)=-4.)
Given the function f(x) = x²(x - 2) on the interval [-2, 2]:

A. To find the local minima and maxima, we need to take the first derivative and find its critical points.

f'(x) = 3x² - 4x
Solving for x, we get x = 0 and x = 4/3.

However, x = 4/3 is not within the interval [-2, 2], so the only critical point within the interval is x = 0.

There is a local minimum at x = 0, and no local maximum. Therefore, the answer is:

A. The local minimum is at x = 0 and there is no local maximum. (Type an integer or a simplified fraction.)

B. For the absolute maximum and minimum, we need to evaluate the function at the endpoints and the critical point within the interval.

f(-2) = (-2)²(-2 - 2) = 16
f(0) = (0)²(0 - 2) = 0
f(2) = (2)²(2 - 2) = 0

The absolute maximum occurs at x = -2 and the absolute minimum occurs at x = 0 and x = 2. The answer is:

B. The absolute maximum is at x = -2 and the absolute minimum is at x = 0, 2. (Use a comma to separate answers as needed. Type integers or simplified fractions.)

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Based on the given information, the estimated current stock price for Full Boat Manufacturing is $13.11. This is calculated using the discounted cash flow model, taking into account the projected future cash flows, growth rates, and required rate of return.

To calculate the current stock price, we need to estimate the free cash flows and discount them at the required rate of return.

First, we calculate the free cash flow to the firm (FCFF) for next year as follows

FCFF = Sales - Costs - Net Investment*(1-t)

= $115 million - $67 million - $12 million*(1-0.21)

= $31.02 million

Next, we calculate the expected growth rate in FCFF using the formula:

g = (FCFF Year 2 / FCFF Year 1) - 1

where FCFF Year 2 = FCFF Year 1 * (1 + g)

Using the given information, we get

g = (FCFF Year 2 / FCFF Year 1) - 1

= (FCFF Year 1 * (1 + 0.14) * (1 - 0.02) / FCFF Year 1) - 1

= 0.12

We can now use the Gordon growth model to estimate the current stock price

Current stock price = FCFF Year 1 * (1 + g) / (r - g)

where r is the required rate of return.

Substituting the values, we get

Current stock price = $31.02 million * (1 + 0.12) / (0.13 - 0.12)

= $72.13 million

Finally, we divide the current stock price by the number of shares outstanding to get the estimate of the current stock price per share:

Current stock price per share = $72.13 million / 5.5 million

= $13.11 per share

Therefore, the estimate of the current stock price is $13.11 per share.

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--The given question is incomplete, the complete question is given

"  Full Boat Manufacturing has projected sales of $115 million next year. Costs are expected to be $67 million and net investment is expected to be $12 million. Each of these values is expected to grow at 14 percent the following year, with the growth rate declining by 2 percent per year until the growth rate reaches 6 percent, where it is expected to remain indefinitely. There are 5.5million shares of stock outstanding and investors require a return of 13 percent on the company’s stock. The corporate tax rate is 21 percent.

What is your estimate of the current stock price?

Points lie on the graph of the inverse of f(x)=5x−2.

Hence, the correct option is C,E,F.

To find the points on the graph of the inverse of f(x), we need to switch the x and y coordinates of each point on the graph of f(x). Then, we can simplify the equation to isolate y and get the inverse function.

f(x) = 5x - 2

y = 5x - 2 (replace f(x) with y)

x = 5y - 2 (switch x and y)

x + 2 = 5y (add 2 to both sides)

y = (x + 2)/5 (divide both sides by 5)

So, the inverse function of f(x) is

[tex]f^{-1}[/tex](x) = (x + 2)/5

Now, we can substitute each point from the given options into the inverse function to see if it lies on the graph of the inverse of f(x).

1. (0, -2)

[tex]f^{-1}[/tex](0) = (0 + 2)/5 = 2/5

No, this point does not lie on the graph of the inverse of f(x).

2. (1, 3)

[tex]f^{-1}[/tex](1) = (1 + 2)/5 = 3/5

No, this point does not lie on the graph of the inverse of f(x).

3. (-2, 0)

[tex]f^{-1}[/tex](-2) = (-2 + 2)/5 = 0

Yes, this point lies on the graph of the inverse of f(x).

4. (2/5, 1)

[tex]f^{-1}[/tex](2/5) = (2/5 + 2)/5 = 6/25

No, this point does not lie on the graph of the inverse of f(x).

5. (0, 2/5)

[tex]f^{-1}[/tex](0) = (0 + 2)/5 = 2/5

Yes, this point lies on the graph of the inverse of f(x).

6. (3, 1)

[tex]f^{-1}[/tex](3) = (3 + 2)/5 = 1

Yes, this point lies on the graph of the inverse of f(x).

Therefore, the points that lie on the graph of the inverse of f(x) are (-2, 0),  (0, 2/5) and (3, 1),

Hence, the correct option is C,E,F.

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Valterri would finish 1.1776 minutes (or 70.656 seconds) faster than if he raced at his Day 1 rate, if he raced at his Day 2 rate for the entire 64-lap race

To calculate how much faster Valterri would finish the full race if he raced at his Day 2 rate compared to his Day 1 rate, we need to first calculate his time difference per lap.

On Day 1, Valterri's rate was 3.2, which means he completed each lap in 1/3.2 or 0.3125 minutes (18.75 seconds).

On Day 2, his rate was 3.4, so he completed each lap in 1/3.4 or 0.2941 minutes (17.65 seconds).

The time difference per lap between Day 1 and Day 2 is 0.3125 - 0.2941 = 0.0184 minutes (or 1.104 seconds).

To find out how much faster Valterri would finish the full race if he raced at his Day 2 rate, we need to multiply this time difference per lap by the number of laps in the race.

The race has 64 laps, so:

Time difference = 0.0184 x 64 = 1.1776 minutes (or 70.656 seconds)

Therefore, if Valterri raced at his Day 2 rate for the entire 64-lap race, he would finish 1.1776 minutes (or 70.656 seconds) faster than if he raced at his Day 1 rate.

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We can predict with 99% confidence that a new employee with 9 hours of training will produce between -4.16 and 3.49 defects per countertop.

To find the 99% prediction interval for the number of defects per countertop for an employee with 9 hours of training, we can use the estimated regression equation and the standard error provided.

The 99% prediction interval is given by:

Predicted value ± t(0.995, n-2) x SE

where t(0.995, n-2) is the t-score for the 99% confidence level with n-2 degrees of freedom (where n is the sample size), and SE is the standard error.

First, we need to calculate the predicted value:

Defects per Countertop = 6.717822 - 1.004950(Hours of Training)

Defects per Countertop = 6.717822 - 1.004950(9)

Defects per Countertop = -0.334578

Next, we need to find the t-score for the 99% confidence level with 8 degrees of freedom (n-2 = 10-2 = 8). Using a t-distribution table or calculator, we find that t(0.995, 8) = 3.355387.

Finally, we can calculate the 99% prediction interval:

-0.334578 ± 3.355387 x 1.2297787

This simplifies to:

-4.157722 < Defects per Countertop < 3.488566

Therefore, we can predict with 99% confidence that a new employee with 9 hours of training will produce between -4.16 and 3.49 defects per countertop. However, since the lower limit is negative, it does not have practical meaning in this context. Therefore, we can conclude that we can predict with 99% confidence that a new employee with 9 hours of training will produce between 0 and 3.49 defects per countertop.

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The true statement about Amy's weekly income is that her net income is less than $120 (option c).

To find out the true statement about Amy's weekly income, we need to calculate her gross income first.

Step 1: Multiply the hours worked per week by the hourly wage.
Amy works 15 hours a week and earns $8 an hour, so:
15 hours * $8/hour = $120

Now we have her gross income, which is $120.

Comparing the gross income to the statements given:

a) Her net income is more than $120: False, as net income is usually less than gross income due to deductions (taxes, social security, etc.).
b) Her gross income is less than $120: False, as we calculated her gross income to be exactly $120.
c) Her net income is less than $120: True since net income is generally less than the gross income due to deductions.
d) Her gross income is more than $120: False, as her gross income is exactly $120.

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Answer:

The third choice is the correct answer.

The median means that as many as friends have less than A. 1. 5 pets as those that have more than A. 1. 5 pets.

The median is a measure of central tendency in statistics that represents the middle value of a dataset when it is ordered from smallest to largest. The median is often used as a more robust measure of central tendency than the mean, because it is less affected by extreme values in the dataset.

From the box plot, the data set of friends with pets would be:

0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 2, ,2 ,2, 2, 2, 2, 3, 4, 4, 7.

The median here is:

= ( 10 th position + 11 th position ) / 2

= ( 1 + 2 ) / 3

= 1. 5

This therefore means that as many friends have more than 1. 5 pets as those with less than 1. 5 pets because the median shows the number which had the same number above, and the number below.

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Answer:

1)55,44

2)6,4

3)49,8

4)11,7

5)12,444

6)23,04

7)12,46

8)15,06

9)31,68

10)30,4

Step-by-step explanation:

Recheck them and make sure there are no mistakes

Answer:

The volume is the height times the length times the width (order does not matter in this case).

4.5 x 3.5 x 7= 110.25

The volume of this block of wood is 110 cubic inches.

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Step-by-step explanation:

Answer:

Step-by-step explanation:

V=4

3πr 3=4

3·π·83≈2144.66058

The given equation, 3πr3=4, suggests that the volume of some object is 4, which can be solved to find the radius.

The volume of a sphere with a radius of 8 can be calculated using the formula: V = (4/3)πr³, where r is the radius of the sphere and π is the mathematical constant pi. Substituting the value of the radius into the formula,

we get V = (4/3)π(8³) = 2144π or approximately 26808.47 cubic units. Therefore, the volume of the sphere is approximately 26808.47 cubic units.

The cost of points for this mortgage is $3,510 rounded to the nearest dollar if Julie pays 2.25 points.

Cost of house =  $225,000.

Mortgage amount =  $156,000

Fixed-rate = 4.5%

Bank offer rate = 4.25%

Points to pay = 2.25 points

If we assume that one point is equal to 1%, then 2.25 points are equal to 2.25% of the loan amount.

The cost of points for the mortgage can be calculated by the product of the loan amount by 2.25%.

Cost of points = 0.0225 × $156,000

Cost of points = $3,510

Therefore, we can conclude that the cost of points for this mortgage is $3,510 rounded to the nearest dollar.

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Answer:

24 with a remainder of 1 (or Q.24 R.1)

Explanation:
divide the amount of books by the amount of students.

The slope of the line is 3/5 and the y-intercept is 4/7.

The equation of the line in slope-intercept form is y = mx + b, where m is the slope of the line and b is the y-intercept.

In this form, the slope of the line tells us how steeply the line is rising or falling, while the y-intercept tells us where the line crosses the y-axis.

In the given equation y = 3/5x + 4/7, we can see that the coefficient of x, 3/5, is the slope of the line. This means that for every 1 unit increase in x, the line will increase by 3/5 units in y.

A positive slope means that the line is rising from left to right, while a negative slope means that the line is falling.

We can also see that the constant term, 4/7, is the y-intercept of the line. This tells us that the line crosses the y-axis at the point (0, 4/7). In other words, when x is 0, y is equal to 4/7.

So, to summarize, the slope of the line y = 3/5x + 4/7 is 3/5, which means the line rises 3 units for every 5 units it moves to the right.

The y-intercept is 4/7, which tells us the line crosses the y-axis at the point (0, 4/7).

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P(q) has a concave down inflection at q=13,000, negative marginal profit between q=10,000 to 15,000, constant marginal profit after q=17,000, and breaks even at q=2000.

One possible profit function that satisfies the given conditions is:

P(q) = -0.002(q-13,000)^3 + 20q - 40,000

The domain is 0 ≤ q ≤ 20,000, and the marginal profit is negative for 10,000 < q < 15,000, meaning that increasing production within this range will result in decreasing marginal profit. The inflection point at q = 13,000 indicates a change in the concavity of the profit function.

The break-even point is q = 2000, which means that the profit function crosses the x-axis at this point.

For q > 17,000, the marginal profit is constant, indicating that the profit function becomes linear beyond this point. This profit function satisfies all the given conditions and can be used to model the profit of a business or a product as a function of production quantity.

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Hi! I'd be happy to help you with your question. To find the volume of two laundry detergent boxes, each measuring 12 inches by 8 inches by 3 inches,

you can follow these steps:

Formula: Volume = Length × Width × Height

Step 1: Plug in the values for one box:
Volume = 12 inches × 8 inches × 3 inches

Step 2: Calculate the volume of one box:
Volume = 288 cubic inches

Step 3: Multiply the volume of one box by 2 to find the volume of two boxes:
Total volume = 288 cubic inches × 2

Solution: The total volume of two laundry detergent boxes is 576 cubic inches.

Your answer: The volume of two boxes of detergent is 576 cubic inches.

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Triangle ABD is scalene and obtuse.

The triangle has three sides of unequal length, hence it is classified as an scalene triangle.

(it would be equilateral if all had the same length, and isosceles if two sides have the same length).

The triangle has one angle larger than 90º, hence it is classified as an obtuse triangle.

(acute with no angles of 90º or greater, right with one angle of exactly 90º).

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