Evaluate the line integral ∫ 4xy dx + 2x 2 − 3xy dy, where C is the arc of the circle x 2 + y 2 = 1, from (1, 0) to (0, 1) in the counterclockwise direction.

Answer:-4,-3

Step-by-step explanation:

-4 is lower then -3 and the arrow faces the x meaning it is lower than -3.

7. The statement regarding the set is false.

8. The statement regarding the set is correct.

In problem 7, we are given the subsets of a set, and then the statement is that the subset {a,e} is contained into the set S.

The subset {a,e} is not one element of the set S, which are a, ... {e, empty}, hence the statement is false.

In problem 8, we are given the union operation, which has the result given by the elements that belong to at least one of the sets.

The empty set belongs to set T, hence it belongs to the union of sets S and T, and thus the statement is correct.

More can be learned about the union between two sets at https://brainly.com/question/4699996

#SPJ1

The probability that a randomly selected student takes both computer science and statistics courses is 26%.

Let's call the event that a student takes a computer science course "C" and the event that a student takes a statistics course "S". We want to find the probability that a student takes both C and S, which can be written as P(C ∩ S).

The probability that a student takes at least one of these two courses can be written as P(C ∪ S), which is equal to 63%. This means that 63% of the students take either computer science or statistics, or both.

To find the probability that a student takes both courses, we can use the formula for the intersection of two events:

P(C ∩ S) = P(C | S) × P(S)

where P(C | S) is the probability that a student takes a computer science course given that they also take a statistics course. To find this value, we can use the formula:

P(C | S) = P(C ∩ S) ÷ P(S)

Substituting this into the first equation, we get:

P(C ∩ S) = P(C ∩ S) ÷ P(S) × P(S)

P(C ∩ S) = P(C ∩ S) × P(S)

We know that P(S) = 48% and we can use the formula for the union of two events to find P(C ∪ S):

P(C ∪ S) = P(C) + P(S) - P(C ∩ S)

Substituting in the values we know:

63% = 41% + 48% - P(C ∩ S)

P(C ∩ S) = 41% + 48% - 63% = 26%

To know more about the intersection of two events visit :

https://brainly.com/question/17165123

#SPJ1

A. The statement is false. [-2 5] and [-5 2] do not lie on a line through the origin, as they do not have the same slope. The arrows they correspond to meet at right angles, which means they form a line perpendicular to the origin.

B. Correct! The statement is false. [-2 5] and [-5 2] do not lie on a line through the origin, as they do not have the same slope. The arrows they correspond to meet at right angles, which means they form a line perpendicular to the origin.

C. Correct! The statement is true. [-2 5] and [-5 2] correspond to arrows pointing in precisely opposite directions and so are on the same line through the origin.

D. Incorrect. The statement is false. [-2 5] and [-5 2] do not lie on a line through the origin, as they do not have the same slope. The arrows they correspond to meet at right angles, which means they form a line perpendicular to the origin.

Learn more about The points in the plane:

https://brainly.com/question/461188

#SPJ4

The answer to the query is that option D) is correct. A circle with the radius if 4 and a point at (3, -2) has the following equation  [tex](x - 3)^2 + (y + 2)^2 = 16[/tex]

Your youngster will get familiar with the term "radius" as they study circles. It speaks about the separation between any point on a circle's perimeter and its center (circumference). It crosses the center, by one of the circle's sides to the other, and is half the size of diameter.

The radius of a circle is the distance between the center to any location on the edge. The diameter and radius are inversely proportional, or 2r=d2 r=d.  the section of a line that connects two locations on a circle chord.

The equation of a circle is

[tex](x-h)^2 + (y-k)^2 = r^2[/tex]

Where (h, k) is the circle's center and r is its radius.

The center is at (3, -2)

[tex](x-3)^2 + (y-(-2))^2 = 4^2[/tex]

[tex](x - 3)^2 + (y + 2)^2 = 16[/tex]

To know more about Radius visit :

https://brainly.com/question/14618066

#SPJ1

The Complete Question :

Which equation is an equation of a circle with a radius of 4 and its center is at (3, -2)?

A. [tex](x - 3)^2 + (y + 2)^2 = 4[/tex]

B. [tex](x+ 3)^2 + (y - 2)^2 = 16[/tex]

C. [tex](x-3)^2 + (y - 2)^2 = 4[/tex]

D. [tex](x - 3)^2 + (y + 2)^2 = 16[/tex]

The possibilities of the combinations that are there for rearranging the pages in the right order are 100 !.

The probability of getting the story in the right order is 1 / 100 !.

There are 100 pages in the history text which means that when they are randomly mixed, each page could take a different position out of the 100 and so lead to a new combination.

The possibilities of combinations is therefore:

= n !

= 100 !

The probability that the story is in the right order will happen with only a single combination which means the probability is:

= Number of correct orders / Number of combinations

= 1 / 100 !

Find out more on combinations at https://brainly.com/question/28065038

#SPJ1

Answer:

OC. Eat less meat

Step-by-step explanation:

Not really sure how this is math, but meat comes from butchered animals.  Buying less meat means fewer animals are killed.

Answer:

Y- intercept is (0,-5), not (0,5), but everything is right! Nice job

Step-by-step explanation:

Finding slope and Y-intercept

Slope being (y2-y1)/(x2-x1) of any two points

I'll do (6,7) and (9,13), so

(13-7)/(9-6) = 6/3 = 2.

Slope = 3

For Y-Intercept

That's where X = 0. On this graph, X = 0, where Y= -5, making the Y-intercept -5

Slope intercept form is y = mx + b

Plugging everything together, we get K(X) = 3x - 5

The equation of g(x) is g(x) = 2*x^(1/2)

Explanation:

The original function f(x) is defined as f(x) = x^(1/2) which is the square root of x. When the function is stretched horizontally by a factor of 2, the x term becomes 2x. So the new function g(x) is defined as g(x) = 2*x^(1/2)

Answer:

Part A: x = 1, 2

Part B: 13 != 7, 13 != 9

Step-by-step explanation:

We pick x values that when plugged into the equation, creates a false statement.

x = 1

13 = 2(1) + 5

13 = 2 + 5

13 = 7

As you can see 13 does not equal 7

x = 2

13 = 2(2) + 5

13 = 4 + 5

13 = 9

As you can see 13 does not equal 9

The number of years it will take the population of the city to reach 1million is 14.1 years

Exponential function, in mathematics, a relation of the form y = ax, with the independent variable x ranging over the entire real number line as the exponent of a positive number a.

1000000 = 10⁶

10⁶ = P(t)

10⁶ = 244115e0.1t

10⁶/244115 = 0.1t

e0.1t = 4.096

ln0.1t = ln 4.096

0.1t = 1.41

t = 1.41/0.1

t = 14.1 years

therefore the years it will take the city to be populated with 1million is 14.1 years

learn more about exponential function from

https://brainly.com/question/2456547

#SPJ1

Making x the subject of the formula in this equation 4y = 4x - 6z/6 gives x = (24y + 6z)/4.

In this exercise, you are required to make "x" the subject of the formula in the given mathematical expression by using the following steps.

By multiplying both sides of the mathematical expression by 6, we have the following:

4y = (4x - 6z)/6

6 × 4y = (4x - 6z)/6 × 6

24y = 4x - 6z

By adding "6z" to both sides of the mathematical expression, we have the following:

24y + 6z = 4x - 6z + 6z

24y + 6z = 4x

By dividing both sides of the mathematical expression by 4, we have the following:

x = (24y + 6z)/4

Read more on expression here: brainly.com/question/25767785

#SPJ1

Answer:

Approximately 11 boats.

Step-by-step explanation:

To get this answer, we simply need to divide 145, which is the number of his employees, but 13, the amount of people each boat holds. You get the answer 11.1538462.

Answer:

12 Boats

Step-by-step explanation:

Since it given that;

All we have to do is divide the total number of people by how much a fishing boats can hold.

Which is;

145/13

= 11.1538461538

So, we need 12 boats due to 145/13 = 11.15... because you can't cut a person in half. Thus, we need an extra boat to hold the extras.

RevyBreeze

Answer:

each bar costs $3.

Step-by-step explanation:

The inequality that describes the problem is:

3x > 18

This inequality states that the total cost of the soap bars, represented by 3x, is greater than Colleen's budget of $18. The variable x represents the number of bars of soap Colleen bought. So, if x represents the number of bars of soap Colleen bought, 3x represents the total cost of those bars, since each bar costs $3.

✰ Read

If my answers have been helpful to you, please consider giving me a brainlist. A brainlist is a way to acknowledge and show appreciation for my efforts. It is also a way to support the development of the model and help to make it even more accurate and efficient. Giving a brainlist is a simple process and it only takes a moment of your time. It not only helps me to improve but also it helps others who are looking for similar information in the future. Your positive feedback is always appreciated.

Answer:

Step-by-step explanation:

You want an equation for the temperature of 8 cups of hot (50 °C) water combined with c cups of cold (20 °C) water, along with an explanation of it. Then you want the number of cups required to reduce the temperature to 40 °C.

Assuming constant heat capacity and volume as a function of temperature, the temperature of the mix will be the weighted average of the temperatures of the contributors. That is c cups of water at 20 °C combined with 8 cups of water at 50 °C will have a temperature (t) of ...

  t = (20c +8(50))/(c+8)

  t = (20c +400)/(c +8)

The thermal energy contained in the water is assumed to be jointly proportional to its volume and its temperature. The combined thermal energy of the mixture will be the total of that of its contributors.

That is, the temperature of the mix is the weighted sum of the temperatures of the contributors, the weights being their respective volumes.

The value of c for a temperature of 40 °C is ...

  40 = (20c +400)/(c+8)

  2(c +8) = c +20) . . . . divide by 20, multiply by (c+8)

  2c +16 = c +20 . . . . eliminate parentheses

  c = 4 . . . . . . . . . . . . subtract (c+16)

4 cups of cold water must be added to reduce the temperature ot 40 °C.

(a) t = (400 + 20c)/(8+c)

(b)weighted sum of temperatures

(c) 4 cups

An equation is a statement that asserts the equality of two expressions, the expressions are written one on each side of an '=' equal to sign.

Let t be the temperature of water.

Let c be the number of cold cup of water at 20°C

(a)c cups of water at 20 °C combined with 8 cups of water at 50 °C will have a temperature (t) of

[tex]t= \frac{20c+8*50}{c+8}[/tex]  --------(1)

(b)The temperature of the mix is the weighted sum of the temperatures of the contributors, the weights being their respective volumes.

(c)The value of c for a temperature of 40 °C is

40 = (20c +400)/(c+8)

2(c +8) = c +20) . . . . divided by 20, multiply by (c+8)

2c +16 = c +20 . . . . eliminate parentheses

⇒ c = 4

Hence, the required equation is [tex]t= \frac{20c+8*50}{c+8}[/tex] and for part (c) 4 cups.

Learn more about equation here:

https://brainly.com/question/23752439

#SPJ1

Answer: This investor has managed to earn 220/10 shares of his initial invention.

Step by step explanation:

Data for the fraction:

In this problem we must apply the addition and subtraction of Fractions in order to obtain an answer about the parts of the initial investment that have been achieved. For this we pose the problem:

[tex]\bf \: \cfrac{50}{10} - \cfrac{30}{10} + \cfrac{200}{10} = \boxed{ \bf\frac{220}{10} }[/tex]

Rpt: This investor has managed to earn 220/10 shares of his initial invention.

Answer: 9 guest can be served.

Step-by-step explanation:

2/3 pounds of chocolate for each guest

6 pounds of chocolate can be served to

So let's do 6/ (2/3)

=6* 3/2

that will equal 9 guests

Answer:

cubic

Step-by-step explanation:

The entry-level salary for teachers in Boston in 2017 should have been $42,086 if adjusted for inflation using the Consumer Price Index.

To learn more about inflationary adjustment refer to:

https://brainly.com/question/30204099

#SPJ1

If sample variance were to be computed by dividing SS by n, then the average value of the sample variances from all the possible random samples would consistently underestimate the population variance.

The sample variance is an estimate of the population variance, and it is calculated by dividing the sum of squared deviations (SS) by the sample size minus one (n - 1).

The reason for dividing by n-1 instead of n is due to the fact that the sample variance is an estimate of the population variance and not the exact value. When computing the sample variance, we use the sample data to make an estimate of the population variance. By dividing by n-1 instead of n, we adjust for the fact that the sample is a subset of the population and introduce a small amount of bias into the estimate to correct for this lack of representation.

This correction is known as the Bessel's correction and it makes the sample variance a more accurate estimate of the population variance by adjusting for the variability inherent in sampling. As a result, when sample variance is computed using the Bessel's correction (dividing by n-1), the average value of the sample variances from all possible random samples will consistently underestimate the population variance.

Learn more about variance here: https://brainly.com/question/25639778

#SPJ4

Answer:

1/7

Step-by-step explanation:

All parts are equal to one therefore raisons are just 1 out of 7 other slices on the pie chart

To determine what part of the premium trail mix is composed of raisins, refer to the given pie chart. The portion represented by 'raisins' indicates the amount of raisins in the mix. Raisins slice is 1/7, so 14.28% of premium blend is composed of raisins.

To find out what part of the premium blend trail mix is composed of raisins, you need to look at the pie chart. The pie chart should be separated into multiple sections, with each section representing a different ingredient in the trail mix. The section labeled as raisins would represent the part of the premium blend that is composed of raisins.

For example, if the 'raisins' slice is 1/4, 25%, or 90 degrees of the pie chart, this means that 1/4, 25%, or a proportional quantity of the trail mix is composed of raisins. This is because a pie chart is a circle, and a full circle is 100% or 360 degrees - so 1/4, 25%, or 90 degrees all represent the same quantity in this context.

Remember to always check the labels and any information provided in the pie chart. It provides a visual representation of data and can help you understand the proportions of different components in a mixture.

https://brainly.com/question/30145769

#SPJ2

There does not exist a constant C > 0 such that p∞(v) ≤ Cp1(v) for all vectors v in V. Therefore, p1-norm < p2-norm < p∞-norm implies there is no c such that p∞-norm < c p1-norm.

Given two norms, p and q, on a vector space V, we say that p is less than q, written p ≤ q, if there exists a constant C > 0 such that for all vectors v in V,

p(v) ≤ Cq(v)

Now, let's consider the three norms:

   The 1-norm: p1(v) = ∑|v_i|

   The 2-norm: p2(v) = √(∑v_i^2)

   The infinity-norm: p∞(v) = max{|v_i|}

We are given that p1(v) ≤ p2(v) for all vectors v in V and that p2(v) ≤ p∞(v) for all vectors v in V. We want to show that there does not exist a constant C > 0 such that p∞(v) ≤ Cp1(v) for all vectors v in V.

Suppose for the sake of contradiction that such a constant C does exist. Then, for any non-zero vector v in V,

p∞(v) ≤ Cp1(v)

max{|v_i|} ≤ C ∑|v_i|

Since v is non-zero, there exists an index i such that |v_i| > 0. We can divide both sides of the inequality by |v_i| to get:

1 ≤ C ∑|v_j| / |v_i|

Now, since p1(v) ≤ p2(v) for all vectors v in V, we have:

p1(v) = ∑|v_j| ≤ √(∑v_j^2) = p2(v)

So, we can substitute this into the inequality above to get:

1 ≤ C √(∑v_j^2) / |v_i| = Cp2(v) / |v_i|

Finally, since p2(v) ≤ p∞(v) for all vectors v in V, we have:

p2(v) / |v_i| ≤ p∞(v) / |v_i| = 1

So, we have reached a contradiction:

1 ≤ Cp2(v) / |v_i| ≤ C

This contradicts the assumption that C > 0, so there does not exist a constant C > 0 such that p∞(v) ≤ Cp1(v) for all vectors v in V. Therefore, p1-norm < p2-norm < p∞-norm implies there is no c such that p∞-norm < c p1-norm.

To know more about vectors, here

https://brainly.com/question/24256726

#SPJ4

Answer:

it's 3gc brought video gloves

Answer:

Below

Step-by-step explanation:

Find time to get to 102.5 m  (Half of the field)

d = 1/2 a t^2

102.5 = 1/2 * 3.95 t^2   shows t = 7.2 s

then   v = at

              = 3.95 * 7.2 = 28.5 m/s

If the line segment joining the points A (x1, y1) and B(x2, y2) is divided by a point P in the ratio 1 : k internally, then the coordinates of the point P are P[(1x₂ + kx₁)/(1 + k)],  [(1y₂ + ky₁)/(1 + k)].

In this scenario, we would use line ratio to determine the coordinates of the point P on the directed line segment that partitions the segment into a ratio of 1 to k.

In Mathematics, line ratio can be used to determine the coordinates of the point P and this is modeled by this mathematical expression:

P(x, y) = [(mx₂ + nx₁)/(m + n)],  [(my₂ + ny₁)/(m + n)]

Substituting the given parameters into the line ratio formula, we have the following;

P(x, y) = [(1x₂ + kx₁)/(1 + k)],  [(1y₂ + ky₁)/(1 + k)]

Read more on line ratio here: brainly.com/question/14457392

#SPJ1

Mr. Saver's nominal interest rate is 8%.

percentage, a relative value indicating hundredth parts of any quantity.

Given that the interest he earns during t = 0.5 to t = 1.5 is 1.0816 times the interest he earns during t = 0 to t = 1. We can use this information to set up an equation as follows:

P(1+R/4)²=1.0816×P(1+R/4)

We can simplify this equation by canceling out the P and the (1+R/4) on the right side:

(1+R/4)=1.0816

We can then solve for R:

R/4=√1.0816-1

R=0.08 is the exact value of R.

Now multiply with 100

0.08×100=8%

Hence, Mr. Saver's nominal interest rate is 8%.

To learn more on Percentage click:

https://brainly.com/question/28269290

#SPJ1

Triangle AHIJ is theree-sided polygon where the measure of angle JHI is (3x + 28) degrees.

Answer:

Step-by-step explanation:

Standard slope intercept equation is

[tex]y=mx+b[/tex]

where m is the slope and b is the intercept.

substitute the values given

[tex]y=-\frac{2}{5} x+0[/tex]

simplify

[tex]y=-\frac{2}{5} x[/tex]

Answer:

8

Step-by-step explanation:

Let's call the first of the three consecutive even integers x.

Since the integers are consecutive and even, we know that the next integer will be x+2, and the next one will be x+4.

We can use this information to set up an equation:

x + (x+2) + (x+4) = 30

Simplifying this equation, we get:

3x + 6 = 30

Subtracting 6 from both sides:

3x = 24

Dividing by 3:

x = 8

So the first of the three consecutive even integers is 8