Use the given transformation to evaluate the double integral: Slo (22 + y2) LA where D is the ellipse with equation 112? + 8y = 88. 4 3 2 1 c -1 -2 -3 -4 -3 -2 -1 0 1 2 3 Let x = 18u and y= V11 v then the evaluated integral equals Submit Answer Tries 0/8

After 11 minutes, the angle between the hour's hand and the minute hand is 180°.

Algebra is the study of abstract symbols, while logic is the manipulation of all those ideas.

A 12 hours roundabout simple clock shows 6 o'clock, with the hour hand pointing at 6, and the moment hand pointing at 12.

The angle between the hour hand and minute hand is 180°. Then the number of minutes is given as,

In each hour, the hour hand rotates 30°. Then in 8 hours, the hour hand rotation is calculated as,

⇒ 30° x 8

⇒ 240°

After 11 minutes the position of the hour hand is given as,

⇒ 240° + (11 / 60) x 30°

⇒ 240° + 5.5°

⇒ 245.5°

The rotation of the minute hand is given as,

⇒ (360° / 60) x 11

⇒ 66°

Then angle between the hour and the minute hand is calculated as,

Angle = 245.5° - 66°

Angle = 179.5°

Angle ≈ 180°

The number of minutes past 7 o'clock will be 11 minutes.

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To prepare a calibration curve for the Hg lines, plot the measured wavenumbers against the accepted wavenumbers. Fit the data with a linear function to determine the slope and y-intercept. Then, use the calibration curve to determine the values for the four H emission lines and calculate the Rydberg constant for hydrogen using these values.

Step 1:

To create a calibration curve, plot the measured wavenumbers of the Hg lines on the x-axis and the corresponding accepted wavenumbers on the y-axis. Fit the data points with a linear function to obtain the equation of the line. The slope and y-intercept of the linear function represent the calibration parameters.

Step 2:

The calibration curve provides a relationship between the measured wavenumbers and the accepted wavenumbers for the Hg lines. By fitting the data with a linear function, we can determine the slope and y-intercept, which define the linear relationship. These parameters allow us to convert the measured wavenumbers of unknown samples to their corresponding accepted values.

Step 3:

Using the calibration curve, we can determine the values for the four H emission lines by finding their corresponding measured wavenumbers. By substituting these measured wavenumbers into the linear function obtained from the calibration curve, we can calculate the accepted wavenumbers for the H emission lines.

Step 4:

The Rydberg constant for hydrogen can be calculated using the values obtained for the H emission lines. The Rydberg formula relates the wavenumber of a spectral line to the Rydberg constant, the principal quantum numbers of the initial and final energy levels, and the atomic mass. By rearranging the formula and substituting the known values, we can solve for the Rydberg constant.

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Answer:180

Step-by-step explanation:

hope this helps

Answer:

0.8 mm

Step-by-step explanation:

Given that you require the actual size.

The ant has been magnified by 15 X

To find the actual size divide magnified size by 15

actual size = 12 mm ÷ 15 = 0.8 mm

The smallest positive integer value of n for which 225n is a multiple of 540 is 8.

To determine the smallest positive integer value of n for which 225n is a multiple of 540, we need to find the least common multiple (LCM) of 225 and 540 and then divide it by 225.

To find the LCM of 225 and 540, we can factor both numbers into primes:

225 = 3^2 x 5^2

540 = 2^2 x 3^3 x 5

The LCM will be the product of the highest powers of each prime factor:

LCM = 2^2 x 3^3 x 5^2 = 1800

Now, we divide the LCM by 225:

1800 / 225 = 8

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Hi student, let me help you out! :)

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  . . . . . . . . . . .  . . . . . . . . . . . . . . . . . . . . . . .

We are asked to simplify the expression \(\large\pmb{7x^2-x^2}\).

\(\triangle~\fbox{\bf{KEY:}}\)

That's exactly what we need to do - combine like terms.

So, we subtract:

\(\star~\large\pmb{7x^2-x^2}\)

Which gives us:

\(\star~\large\pmb{6x^2}\)

Hope it helps you out! :D

Ask in comments if any queries arise.

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~Just a smiley person helping fellow students :)

Answer:

According to my calculations the answer would be C or B

Step-by-step explanation:

Unless I did it incorrectly

Answer:

C

Step-by-step explanation:

30 chose a sandwhich out of 55 students

The equation 8x - 4y = -4 have y as the subject to be equal to 2x + 1 expresses in terms of x.

To solve for y in the equation 8x - 4y = -4, we must make y the subject and it should be positive as follows;

8x - 4y = -4

add 4y to both sides

8x - 4y + 4y= -4 + 4y

8x = - 4 + 4y

also to make y the subject;

- 4 + 4y = 8x

add 4 to both sides

- 4 + 4 + 4y = 8x + 4

4y = 8x + 4

factorize the right hand side

4y = 4(2x + 1)

divide through by the coefficient of y

4y/4 = [4(2x + 1)]/4

y = 2x + 1

Hence, the equation 8x - 4y = -4 has y = 2x + 1

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Answer: One answer

Step-by-step explanation:

Answer:

805.92

Step-by-step explanation:

Answer:well if a ice cub melts its probally gonna be 0

Step-by-step explanation:

im not so good sorry

Answer:

We know that:

Factorize the expression for the area and find the missing side

Given:

Find l:

l = A/w

l = (x² + 10x + 21)/(x + 3) =

    (x + 3)(x + 7)/(x + 3 =

    x + 7

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

Given:

Find w:

w = A/l

w = (x² + 2x - 8)/(x + 4) =

      (x + 4)(x - 2)/(x + 4) =

      x - 2

Answer:

4, -6, -2, 3

Step-by-step explanation:

Domain is all the x-values in an ordered pair or function

Range is all the y-values in an ordered pair or function

The x-values for this function is 4, -6, -2, 3

This is the domain

The range(y-values) would be 9, 1, 5

Remember to not input repeating values for domain and range. In the range of this function, there are two values of 1, but I only inputted 1, once.

-Chetan K

Answer: You shouldn't hate trig.

Step-by-step explanation:

SinΘ= opposite/hypotenuse

SinΘ=y/x

Sin(16) = 9/x

x = 9/Sin(16)

x= 32.7 cm

The given inequality is X + 29/x+3<9. We have to solve this inequality, graph the solution and write the answer in interval notation.Steps to solve the inequality:Step 1: Subtract 9 from both sides of the inequality.X + 29/x+3 - 9 < 0Step 2: Bring all the terms to the denominator.X(x+3) + 29 - 9(x+3) / x+3 < 0Simplifying it, (x^2 + 2x - 6x - 3) / (x+3) < 0x^2 - 4x - 3 / x+3 < 0Step 3: Find the critical values. They are the values of x which make the denominator zero. Here, the critical value is x = -3.Step 4: Find the sign of f(x) for values of x less than -3. We will choose x = -4.f(-4) = ((-4)^2 - 4(-4) - 3) / (-4+3) = 7 > 0Therefore, for x < -3, the sign of f(x) is positive (+).Step 5: Find the sign of f(x) for values of x between -3 and 1. We will choose x = 0.f(0) = (0^2 - 4(0) - 3) / (0+3) = -1Step 6: Find the sign of f(x) for values of x greater than 1. We will choose x = 2.f(2) = (2^2 - 4(2) - 3) / (2+3) = -3/5Therefore, for x > -3, the sign of f(x) is negative (-).Step 7: Plot the critical value on the number line. Use an open circle for less than or greater than inequalities and a closed circle for less than or equal to or greater than or equal to inequalities.Step 8: Write the solution in interval notation.(-∞,-3) U (1, 2+√7) U (2-√7, -3+√13) U (-3+√13,∞)The solution of the given inequality is (-∞,-3) U (1, 2+√7) U (2-√7, -3+√13) U (-3+√13,∞).

Step-by-step explanation:

the slope = (4-0)/(-1-0) = 4/(-1) = -4

the equation : y = -4x

m = (Y2 - Y1)/(X2 - X1)

m = (0 - 4)/(0 - (-1))

m = -4/(0 + 1)

m = -4/1 = -4

Answer:

$3

Step-by-step explanation:

You buy 10 pounds of bird seed at store A for $11.50 which means every pound is $1.15.

15 pounds of bird seeds store B for $19.50 is $1.30 per pound.

At store A = 20 * $1.15 = $23

At store B = 20 * $1.30 = $26

So, 26 - 23 = 3

Answer:

You would spend $3 less by buying 20 pounds of bird seeds at the store with the better deal.

Step-by-step explanation:

Given:

You can buy 10 pounds of birdseed at Store A for $11.50

10 pounds – $11.50

\(\mathrm{\dfrac{ \$11.50 }{ 10\:pounds }}=\mathrm{\dfrac{ \$1.50 }{ 1\:pound }}\)

1 pound – $1.15

To find the value for 20 pounds, we do:

20 pounds = 20 × 1.15 = $23

20 pounds = $23

Your friend buys 15 pounds of birdseed at Store B for $19.50

15 pounds – $19.50

\(\mathrm{\dfrac{ \$19.50 }{ 15\:pounds }}=\mathrm{\dfrac{ \$1.3 }{ 1\:pound }}\)

1 pound – $1.3

To find the value for 20 pounds, we do:

20 pounds = 20 × 1.3 = $26

20 pounds = $26

Now we compare each stores value for 20 pounds of bird seeds:

$23 < $26

The store with the better deal is: Store A

So, you would spend $3 less by buying 20 pounds of bird seeds at the store with the better deal.

Answer:

D has the positive slope because it's the only line that goes upwards from left to right.

Step-by-step explanation:

The method which is best for solving the system of equations when you remove one variable by adding them is B Elimination

To answer the question, we need to know what system of equations are

System of equations are pairs of equations that contain two unknowns

We have different ways of solving systems of equations which include

Since we have the system of equations

3x + 2y = 4

-3x + y = 2

The method which we can use to remove one variable by adding them is the elimination method.

Adding them, we have

3x + 2y = 4

+

-3x + y = 2

3y = 6

y = 6/3

y = 2

So, the method which we can use to remove one variable by adding them is B Elimination

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Answer:

 its a geometric sequence where each term is 3 times the previous term.

Step-by-step explanation:

{2,6,18,54,162,486,1458...}

The missing digit (x) in the pattern is 3 in the second column and 4 in the fourth row. The completed pattern is as follows:

3 2 4 8

7 2 1 3

8 4 3 5

4 3 6 9

To find the missing digit (x) in the given pattern, let's examine the columns and rows to identify any patterns.

Looking at the columns, we can see that the digits in the second column are increasing by 1 each time: 2, 4, x, 3. Therefore, the missing digit (x) must be 2 + 1 = 3.

Similarly, observing the rows, we notice that the digits in the fourth row are decreasing by 1 each time: 8, 5, x, 9. Thus, the missing digit (x) must be 5 - 1 = 4.

Therefore, the missing digit (x) in the pattern is 3 in the second column and 4 in the fourth row. The completed pattern is as follows:

3 2 4 8

7 2 1 3

8 4 3 5

4 3 6 9

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2/25

Step-by-step explanation:

\(\begin{aligned}\tt\left(\frac{4}{25}\right)\cdot\frac{1}{2}&=\tt\frac{4}{50}\to(\div~2)\\&=\tt\frac{2}{25}\end{aligned}\)

4=8/3

I hope this helps, I think thin is the right answer

Answer:

The answer is D

3E13

Step-by-step explanation:

6E12 x 5 = 30E12 or 3E13

Answer:

To determine whether the given sequence converges or diverges, we will examine each of the provided sequences and find their respective limits as n approaches infinity.

1. an = (-1)^n

The sequence alternates between -1 and 1 as n increases. Since it does not approach a specific value, the sequence diverges. Your answer for this sequence is NONE.

2. an = n^2 * e^(-n)

To find the limit as n approaches infinity, we can apply L'Hopital's Rule:

lim (n^2) / (e^n) as n approaches infinity.

Applying L'Hopital's Rule twice, we get:

lim (2n) / (e^n) and then lim (2) / (e^n).

As n approaches infinity, the denominator (e^n) increases without bound, so the limit becomes 0. The sequence converges to 0.

3. an = (3n - 1)! / (3n + 1)!

To find the limit as n approaches infinity, let's rewrite the sequence as:

an = 1 / [(3n)(3n + 1)]

As n approaches infinity, the denominator (3n)(3n + 1) increases without bound, and the sequence converges to 0.

In summary:
1. The sequence (-1)^n diverges (NONE).
2. The sequence n^2 * e^(-n) converges to 0.
3. The sequence (3n - 1)! / (3n + 1)! converges to 0.

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Answer:

c

Step-by-step explanation:

hope this helps

Answer:

B

Step-by-step explanation:

B has a proportional relationship between "a" and "b" as when you divide corresponding "b" values by their respective "a" values they will always give the same thing, that being 1.25 for this situation

\(25/20=1.25\)

\(30/24=1.25\)

\(40/32=1.25\)

this can also be done in reverse by dividing "a" values by their respective b" values to get the same value every time

Hope this helps

The amount of money that Morgan was able to make in the first week would be $ 124

Matrices are mathematical objects which have a rectangular array of numbers, symbols, or expressions laid out in rows and columns. Each element is identified by its row and column location inside the matrix.

The columns have five entries which means that this must be the amount earned per day of a week. The first week earnings would therefore be:

= 24 + 25 + 30 + 10 + 35

= $ 124

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Answer and Step-by-step explanation: The described right triangle is in the attachment.

As it is shown, AC is the hypotenuse and BC and AB are the sides, so use Pytagorean Theorem to find the unknown measure:

AC² = AB² + BC²

\(AB^{2} = AC^{2}-BC^{2}\)

\(AB =\sqrt{AC^{2}-BC^{2}}\)

\(AB =\sqrt{7^{2}-4.5^{2}}\)

\(AB =\sqrt{28.75}\)

AB = 5.4

Then, right triangle ABC measures:

AB = 5.4cm

BC = 4.5cm

AC = 7cm

Answer:

16.809 was the price of each CD before tax