how to calculate the weight of a floor with 150 pcf

According to the given information the line integral is 8(1+125\(\sqrt{110}\)) / 15 .

What distinguishes a line integral from a definite integral?

Line integrals include several integrals across a curve, but definite integrals only entail a single integral over a specified interval. This is the primary distinction between the two types of integrals.

\(\int\limits_c {xy} \, ds\),  C : x = t^2 , y = 2t,  0 ≤ t ≤ 3

x' = 2t , y' = 2

ds = \(\sqrt{(x')^2 + (y')^2}\)

\(\sqrt{4(t)^2 + 4}\)

\(\int\limits C {xy} \, ds\) = \(\int\limits^3_0 {2.2t.2\sqrt{1+t^2}} \, dt\)

t = tanθ

dt = (1+\(tan^{2}\)θ)dθ = (\(sec^{2}\)θ)dθ

= \(\int\limits^3_0 {4t^3\sqrt{1+t^2} } \, dt\)

= 8(1+125\(\sqrt{110}\)) / 15

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Answer:

zanna's cousin is 17 years older than zanna

Step-by-step explanation:

Answer:

17 years older

Step-by-step explanation:

1997- 1980 = 17

Answer:

$24.74

Step-by-step explanation:

32.98*0.75=24.735

Answer:

well for me I think

Step-by-step explanation:

25/100×32.98

also

1/4×32.98

32.98/4

8.245

Answer:

A lower price and quantity would result.

Answer:

Zeros: 1/3 and -1/3

Step-by-step explanation:

You can solve this for the zeros by using the factoring method:

p(x) = (-3x-1)(3x-1)

Then, you take each factored equation and set it equal to zero:

-3x-1=0

3x-1=0

Then, solve for zero:

-3x=1    x=-1/3

3x=1     x=1/3

Your zeros are 1/3 and -1/3.

Answer:

no y = 3x +15 is greater

Step-by-step explanation:

The inequality that describes how many movies Parv can buy is: n ≤ 10.025

Let's denote the number of movies Parv wants to buy as n. We are given that each movie costs $3.99. To determine the inequality that describes how many movies Parv can buy, we need to consider the amount of money he has remaining after purchasing the pack of games.

Parv starts with a $50 gift card and spends $9.99 on a pack of games. The remaining amount on the gift card is $50 - $9.99 = $40.01.

Now, let's consider the cost of n movies. Each movie costs $3.99, so the total cost of n movies would be n * $3.99.

Since Parv wants to buy the movies using the remaining amount on his gift card, we can set up the inequality:

n * $3.99 ≤ $40.01

This inequality states that the total cost of n movies, represented by n * $3.99, must be less than or equal to the remaining amount on the gift card, which is $40.01.

Simplifying the inequality further, we have:

3.99n ≤ 40.01

Now, if we want to solve for n, we can divide both sides of the inequality by 3.99:

n ≤ 40.01 / 3.99

Calculating this value, we have:

n ≤ 10.02506265664

Therefore, the inequality that describes how many movies Parv can buy is:

n ≤ 10.025

This means that Parv can buy a maximum of 10 movies, as he cannot purchase a fractional part of a movie.

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The image of (-4, -2) after a reflection over the line y = -x is (2, -4).

In Mathematics, a transformation can be defined as the movement of a point from its original (initial) position to a final (new) location. This ultimately implies that, when an object is transformed, all of its points would be transformed as well.

Generally, there are different types of transformation and these include the following:

A reflection can be defined as a type of transformation which moves every point of the object by producing a flipped but mirror image of the geometric figure.

In Geometry, a reflection over the y-axis is given by this rule (x, y) → (-x, y). Thus, line y = -x would become:

(-4, 2) → (2, -4).

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The possible number of ways of selection by using combination formula is 3060.

What is combination?

A grouping of items where the order in which they were chosen is irrelevant is known as combination.

Given that the number of people in the group is 18. Only 4 people will be member of the council.

The formula of combination is \(^{n}C_{r}=\frac{n!}{r!(n-r)!}\) , where r number of objects are selected from n objects.

In the given question the value of n is 18 and the value of r is 2.

Substitute the value of n and r in \(^{n}C_{r}=\frac{n!}{r!(n-r)!}\).

\(^{18}C_{4}=\frac{18!}{4!(18-4)!}\)

Solve the above expression:

18^C_4 = 18x17x16x15x14/4x14

18^C_4 = 18x17x16x15/4x3x2x1

3060 18^C_4 = 3060

The number of ways such selection is 3060.

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Answer:

Jonathon can make 6 1/8 pound servings from his grapes.

Step-by-step explanation:

1. divide 3/4/1/8 =3*8/1*4

2. simplify 24/4

3. simplify 24/4=6

Answer: 6 1/8 pound servings

Answer:

C) (10,0)

Step-by-step explanation:

Option C is the correct answer.

Answer: y≤ 50

Step-by-step explanation:

20y ≤ 100   (at most means it can be equal to but not more than)

divide both sides by 20

20y ≤ 100

20        20

y ≤ 50

Answer:

54 feet of yarn

Step-by-step explanation:

We have a conversion rate of

1 yard = 3 feet

Sarah has 4 pieces of yarn that are 6 yards each.

Hence,

1 yard = 3 feet

6 yards = x

Cross Multiply

x = 6 × 3 feet

x = 18 feet

Therefore, 4 pieces of yarn are 18 feet each

Hence, total feet of yarn above = 4 × 18 feet = 72 feet

She uses 9 pieces of yarn that are each 2 feet long.

Total feet of yarn here is:

9 × 2 feet = 18 feet of yarn

Therefore, the amount of yarn Sarah have left is calculated as:

72 feet - 18 feet

= 54 feet of yarn

30 cups of coffee, total 2.1 liters, were distributed equally. 70 milliliters of coffee were in each up.

Given that,

30 cups of coffee, total 2.1 liters, were distributed equally.

We have to find how much milliliters of coffee in each cup.

First we have to convert liters into milliliters.

We know 1 liter=1000 milliliters

So, now we convert 2.1 liters to __ milliliters.

=2.1×1000 milliliters

=21×1/10×1000

=21×100

=2100 milliliters.

So, 2100 milliliters of coffee available for distribution.

We know,

30 cups =2100 milliliters

Then

1 cup = ___ milliliters

1cup=2100/30

1cup=210/3

1 cup= 70

Therefore, 70 milliliters of coffee were in each up.

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Answer:

In a simple linear regression model, if the plots on a scatter diagram lie on a straight line, what is the standard error of the estimate b. 0​

Step-by-step explanation:

If the plots on a scatter diagram lie on a straight line in a simple linear regression model, it indicates a perfect fit between the predictor variable and the response variable. In this case, the standard error of the estimate would be 0.

The standard error of the estimate represents the average distance between the observed values and the predicted values by the regression model. When the scatter diagram forms a perfect straight line, it means that the regression model can precisely predict the response variable using the predictor variable without any error.

Consequently, the residuals, which are the differences between the observed and predicted values, become zero for all data points, resulting in a standard error of 0. It is important to note that this scenario of a perfect fit on a scatter diagram is rare in real-world data, as there are typically variations and uncertainties in the relationship between variables.

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Answer: The number 2340 is divisible by 2,3,5,9 and 10

=====================================================

Here's why

2340/2 = 1170 is a whole number, so it is divisible by 2

Note how the last digit is an even number, so overall the number is even and divisible by 2

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

Add the digits of the given number to get 2+3+4+0 = 9, showing that it is both divisible by 3 and also divisible by 9. If the digits add to a multiple of 3, then it is divisible by 3. If the digits add to a multiple of 9, then it is divisible by 9. Basically anything divisible by 9 is automatically divisible by 3 as well.

We can see we get whole number results shown below

2340/3 = 780

2340/9 = 260

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

The last digit is 0, so 2340 is a multiple of 10. It is also a multiple of 5 because 10 = 5*2

And we can see that

2340/5 = 468

2340/10 = 234

Showing 2340 is a multiple of 5 and 10.

The value of the numerical expression 1 x 10,000 + 7 x 1,000 + 4 x 100 + 0 x 10 + 2 x 1 will be 17,402.

The outcome of the expression corresponds to the outcome of the computation it represents when the pertinent elements and fundamental operations of a mathematical model are assigned values.

Making something a little less complicated while also making it simpler to accomplish or understand is the concept of easiness.

The numerical expression is written below.

⇒ 1 x 10,000 + 7 x 1,000 + 4 x 100 + 0 x 10 + 2 x 1

Simplify the expression, then we have

⇒ 1 x 10,000 + 7 x 1,000 + 4 x 100 + 0 x 10 + 2 x 1

⇒ 10,000 + 7,000 + 400 + 0 + 2

⇒ 17,402

The value of the numerical expression 1 x 10,000 + 7 x 1,000 + 4 x 100 + 0 x 10 + 2 x 1 will be 17,402.

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The complete question is given below.

Find the value of the expression.

1 x 10 000 + 7 x 1 000 + 4 x 100 + 0 x 10 + 2 x 1.

Answer:

4 hours .  

Step-by-step explanation:

4x8.50=34

34 + 16=50

Answer:

He worked 4 hours i think

Step-by-step explanation:

Take 50 and subtract his tips ($16)

then divide your answer by how much he makes an hour ($8.50)

the boat will travel 70 kilometers in 3.5 hours when moving at a rate of 20 kilometers per hour.

To calculate the distance traveled by a boat, we can use the formula: Rate x Time = Distance.

In this case, the rate of the boat is 20 km per hour, and the time is 3.5 hours.

Using the formula, we have:

Distance = Rate x Time

Distance = 20 km/h x 3.5 hours

Calculating the result:

Distance = 70 km

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Answer:

D

Step-by-step explanation:

Please find attached photograph. The monomial is a.

Answer: 4.3*10^-9

Step-by-step explanation: hope this helpsss!!!

Answer:

written as 4.3x10-9

Answer:

-6

Step-by-step explanation:

Answer:

1 hour 33 minutes

Step-by-step explanation:

distance/speed= time

d =800/600

d=1.33

The aeroplane takes 1.33 hours to traverse a distance of 800 km.

Speed is the rate at which an object's position changes, measured in meters per second. For example, if an object starts at the origin, and then moves three meters in three seconds, its speed is one meter per second. The equation for speed is simple: distance divided by time

Given here: An airplane flies a distance of 800 km with an average speed of 600 km/h

Thus the time taken by the aeroplane to cover that distance is

t=800/600

t=4/3

t=1.33 hours

Hence, The aeroplane takes 1.33 hours to traverse a distance of 800 km.

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\(3\sqrt 8 - 3\sqrt{16}\\\\=3\sqrt{4 \times 2} -3 \sqrt{4^2}\\\\=3\cdot 2 \sqrt 2 - 3\cdot 4\\\\=6\sqrt 2 - 12\\\\=6\left(\sqrt 2-2 \right)\)