The brightness of certain stars can fluctuate over time. Suppose that the brightness of one such star is given by the following function. B (t) = 11.3 -1.8 sin 0.25t In this equation, B (t) represents

Answers

Answer 1

The period is T = (2π/0.25) = 25.13 days, This equation can be used to model the brightness of other stars that exhibit similar fluctuations, as long as their period and amplitude are known.

The brightness of certain stars can fluctuate over time. Suppose that the brightness of one such star is given by the following function.

B (t) = 11.3 -1.8 sin 0.25t

In this equation, B (t) represents the brightness of the star at time t, where t is measured in days, and B (t) is measured in magnitudes. Magnitude is a measure of the brightness of stars, as seen by observers on Earth, which is why it is used in this equation. The sin function in this equation represents the periodic fluctuations in brightness that are observed in some stars, which are caused by various factors such as changes in temperature, size, or luminosity. The value of the sin function varies between -1 and 1, and the value of B (t) varies between 9.5 and 12.9, which is a range of 3.4 magnitudes. The period of the fluctuations can be calculated from the formula

T = (2π/ω),

where T is the period in days, and ω is the angular frequency in radians per day. In this case, the period is

T = (2π/0.25) = 25.13 days

, which means that the brightness of the star repeats its pattern every 25.13 days. This equation can be used to model the brightness of other stars that exhibit similar fluctuations, as long as their period and amplitude are known.

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Related Questions

Court Casuals has the following beginning balances in its stockholders'equity accounts on January 1.2021:Common Stock,$90.000 Additional Paid-in Capital,$4.100.000:and Retained Earnings,$3.000,000.Net income for the year ended December 31,2021,is $900.000.Court Casuals has the following transactions affecting stockholders'equity in 2021: May 18 Issues 26,000 additional shares of $1 par value common stock for $50 per share. May 31 Purchases 4,500 shares of treasury stock for $40 per share. Julyl Declares a cash dividend of $2 per share to ail stockholders of record on July 15. Hint: Dividends are not paid on treasury stock. July 31 Pays the cash dividend declared on July 1. August 18 Resells 2,500 shares of treasury stock purchased on May 31 for $52 per share Taking into consideration all the entries described above,prepare the statement of stockholders'equity for the year ended December 31,2021,using the format provided.(Amounts to be deducted should be indicated with a minus sign.) COURT CASUALS Stelement of Stockholdara'Equity For the Yoar Ended December31.2021 Additional Common Ratained Pald-in Stock Earmings Capltal 90,000 $4,100,000 $3,000,000 Treasury Stock Total Stockholders Equlty $7,190,000 Balance,January 1 issue common stock Purchase treasury stock Cash dividends Resell treasury stock Net income Balance,December 31 90,000$4.100,000$3,000,000$ 0$7.190.000

Answers

The preparation of the stockholders' equity statement for the year ended December 31, 2021, is as follows:

Court Casuals

Statement of stockholers' equity

December 31, 2021

Common Stock                        $116,000

Additional Paid-in Capital  $5,326,000

Retained Earnings              $3,677,000

Treasury Stock                         $-2,000

Total stockholders' equity  $9,117,000

How the stockholders' equity statement is prepared:

The stockholders' equity statement includes the common stock, additional paid-in capital, retained earnings, and the subtraction of the treasury stock.

Court Casuals

Stockholers' equity on January 1, 2021

Common Stock $90,000

Additional Paid-in Capital $4,100,000

Retained Earnings $3,000,000

Net income for the year, 2021, = $900,000

Transactions Analysis:

May 18: Cash $1,300,000 Common Stock $26,000 Additional Paid-in Capital $1,274,000 (26,000 x $50 - $26,000)

May 31: Treasury Stock $4,500 Additional Paid-in Capital $175,500 (4,500 x $40 - $4,500) Cash $180,000

Jul 1: Cash Dividend $223,000 (90,000 + 26,000 - 4,500) x $2 Dividends Payable $223,000

July 31: Dividends Payable $223,000 Cash $223,000

August 18: Cash $130,000 Treasury Stock $2,500 Additional Paid-in Capital $127,500 (2,500 x $52 - $2,500)

Statement of Retained Earnings, December 31, 2021:

Beginning balance  $3,000,000

Net income                 $900,000

Dividends                     -223,000

Ending balance        $3,677,000

Common Stock Account:

Beginning balance  $90,000

May 18: Cash              26,000

Ending balance       $116,000

Additional Paid-in Capital Account:

Beginning balance  $4,100,000

May 18: Cash              1,274,000

May 31: Cash                -175,500

August 18: Cash            127,500

Ending balance      $5,326,000

Treasury Stock Account:

May 31: Cash                 $4,500

August 18: Cash             -2,500

Ending balance            $2,000

Thus, we can summarize from the stockholders' equity that Court Casuals has outstanding shares of 114,000 (116,000 - 2,000) at $1 par, which is the difference between the ending balances of the common stock and the treasury stock accounts, after reflecting the equity transactions for the year.

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Multiply. Write each product in simplest form.
9. 3×11
10. //
13. 021-
12.
20
=
=
=
11. 2×4=
8 9
X
18 20
14.
=

Answers

Answer:

Te conozco y sé qué

Como Nuevo de fabrica el otro

What is the value of x in this equation? 2x + 2 = -46

Answers

Answer:

x = -24

Step-by-step explanation:

1. Subtract 2 from -46 to cancel out the addition. 2x = -48

2. Divide both sides by 2. x = -24

jarod paid $18.50 for 5 tickets to the game at the same rate how much would 3 tickets cost?

Answers

Answer:

$11.10

Step-by-step explanation:

divide 18.50 by 5 to find out how a single ticket costs. 18.50/5=3.70then multiply 3.70 by 3 to find the cost of three tickets. 3.70×3=11.10this means that three tickets costs $11.10

Answer:

Step-by-step explanation:

18.50 x 3

Solve using the quadratic formula. Show all work. Write each solution in simplest form. No decimals.

Solve using the quadratic formula. Show all work. Write each solution in simplest form. No decimals.

Answers

Answer:

the answer would end up being: D

Solve using the quadratic formula. Show all work. Write each solution in simplest form. No decimals.

How would I work this one out?​

How would I work this one out?

Answers

Answer:

See below

Step-by-step explanation:

each term is the sum of the two before it

2 3 5 8 13 21 34

ZgotDripxx
What's up?

Answers

Answer:

a movie about a asian kid and a old man who take a ballon house to the sky. Step-by-step explanation:

what’s the derivative of y = 1/(2x^5)?

Answers

Answer:

\(\displaystyle y' = \frac{-5}{2x^6}\)

General Formulas and Concepts:

Calculus

Differentiation

DerivativesDerivative Notation

Derivative Property [Multiplied Constant]:                                                           \(\displaystyle \frac{d}{dx} [cf(x)] = c \cdot f'(x)\)

Basic Power Rule:

f(x) = cxⁿf’(x) = c·nxⁿ⁻¹

Step-by-step explanation:

Step 1: Define

Identify

\(\displaystyle y = \frac{1}{2x^5}\)

Step 2: Differentiate

Rewrite:                                                                                                         \(\displaystyle y = \frac{x^{-5}}{2}\)Derivative Property [Multiplied Constant]:                                                   \(\displaystyle y' = \frac{1}{2} \frac{d}{dx}[x^{-5}]\)Basic Power Rule:                                                                                         \(\displaystyle y' = \frac{1}{2}(-5x^{-6})\)Simplify:                                                                                                         \(\displaystyle y' = \frac{-5}{2x^6}\)

Topic: AP Calculus AB/BC (Calculus I/I + II)

Unit: Differentiation

If QS = 7, what is TU?

If QS = 7, what is TU?

Answers

\(TU = 2QS = 2(7)\)

\(\implies \bf TU = 14\)

Solve the system of equations and choose the correct ordered pairs .

4x+5y=22
2x+3y=12

Answers

Answer:

(3, 2)

Step-by-step explanation:

4x + 5y = 22

2x + 3y = 12

4x + 5y = 22

-4x - 6y = -24

-y = -2

y = 2

4x + 5(2) = 22

4x = 12

x = 3

Answer: (3, 2)

Which of the following could represent the cost of 5 t-shirts and a $7 tax?

Answers

Answer:

y = 5x + 7

Step-by-step explanation:

I am guessing, but you are leaving something out.

y = the total cost.

x = the number of shirts.

Answer:

The total cost for the 7 shirts including tax is 7n + 6

Step-by-step explanation:

We want to find the Cost of 7 t-shirts and $6 tax.

Now, the let the cost of the 7 shirts be n. Thus, we can now say that cost of 7 shirts is 7n.

Now, since there is an additional cost of $6 for tax, we can now say that the total cost for the 7 shirts including tax is expressed as;

7n + 6

Thus, we conclude that the total cost for the 7 shirts including tax is 7n + 6

Write 2/7 + 1/4 as a sum of two equivalent fractions with the same denominator

Write 2/7 + 1/4 as a sum of two equivalent fractions with the same denominator

Answers

2/7 + 1/4 = 15/28 ≅ 0.5357143


Add: 2/7 + 1/4 = 2 · 4/7 · 4 + 1 · 7/4 · 7 = 8/28 + 7/28 = 8 + 7/28 = 15/28 

It is suitable to adjust both fractions to a common (equal, identical) denominator for adding, subtracting, and comparing fractions. The common denominator you can calculate as the least common multiple of both denominators - LCM(7, 4) = 28. It is enough to find the common denominator (not necessarily the lowest) by multiplying the denominators: 7 × 4 = 28. In the following intermediate step, it cannot further simplify the fraction result by canceling.In other words - two sevenths plus one quarter is fifteen twenty-eighths.

The denominator will be 28
But for the total it would be 15/28

There are 3 boys for every 2 girls in a dance competition. Does it make sense for there to be a total of 9 people in the competition?

Answers

According to the ratio, it doesn't make sense to have a total of 9 people in the dance competition.

What is a ratio?

In mathematics, a ratio is a comparison of two or more numbers that indicates their sizes in relation to each other.

The ratio of boys to every girls is 3:2 in a dance competition.

Let's find if it will make sense to have a total of 9 people in the competition.

Therefore,

number of boys = 3 / 5 × 9 = 27 / 5 = 5.4

number of girls = 2 / 5 × 9 = 18 / 5 = 3.6

Therefore, it doesn't make sense to have 9 people in the competition because the actual number of boys and girls will be in decimal which is impossible.

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How many sides does a rectangular pyramid

Answers

Answer:

Step-by-step explanation:

A rectangular pyramid has five sides. It consists of a rectangular base and four triangular faces that meet at a common vertex or apex.


≧◉◡◉≦

A bag contains 21 red marbles, 24 green marbles, and 21 blue marbles. You choose a marble at random
from the bag. What color marble will you most likely choose?

Answers

Given:

A bag contains 21 red marbles, 24 green marbles, and 21 blue marbles.

To find:

What color marble will you most likely choose if you choose a marble at random from the bag.

Solution:

We have,

Number of red marbles = 21

Number of green marbles = 24

Number of blue marbles = 21

Total number of marbles = 21+24+21

                                         = 66

Now,

\(P(Red)=\dfrac{21}{66}\)

\(P(Green)=\dfrac{24}{66}\)

\(P(Blue)=\dfrac{21}{66}\)

The number of green marbles is largest. So, the probability of getting a green marble is largest.

Therefore, you will most likely choose green marble.

If the function f has five distinct zeros, which of the following could represent the complete graph off in the xy-plane?

If the function f has five distinct zeros, which of the following could represent the complete graph

Answers

Answer:

The zeros of a function are the points where the graph of the function crosses the x-axis.

Clearly Graph in option D could be the function which has 5 zeroes as it passes through the axis at 5 points.

Step-by-step explanation:

The graph of the function will intersect the x-axis five times. Then the correct option is D.

What is a function?

A statement, principle, or policy that creates the link between two variables is known as a function. Functions are found all across mathematics and are required for the creation of complex relationships.

If the function f has five distinct zeros.

Then the graph represents the complete graph of the function in the xy-plane will be

We know that the zeroes of the function are the intersection points of the x-axis and the function.

That means the graph will intersect the x-axis five times.

Then the correct option is D.

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Please help me with this

Please help me with this

Answers

Since M is the centroid of triangle ΔGHI, so KI = 10

What is the centroid of a triangle?

The centroid of a triangle is the point at which the three medians of the triangle intersect.

In triangle ΔGHI, M is the centroid of the triangle. If HI = 20, we need to find KI. We proceed as follows.

We know that M is the centroid of the triangle and is the center point where the three medians of the triangle intersect.

Now, GK is a median which passes through HI at K.

Since GK is a median, this implies that HK = KI.

Also, HK + KI = HI

So, since HK = KI, we have that

HK + KI = HI

KI + KI = HI

2KI = HI

KI = HI/2

Given that HI = 20, substituting this into the equation, we have that

KI = HI/2

= 20/2

= 10

So, KI = 10

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Determine whether the following problem involves a permutation or combination. (It is not necessary to solve the problem.)How many different 2-letter passwords can be formed from the letters H, I, J, K, L, M, and N if no repetition of letters is allowed?

Answers

A permutation is an arrangement of outcomes in which the order does matter.

A combination is an arrangement of outcomes in which the order does not matter.

In this case, for example, the password HI is different from the password IH. In both cases, the outcomes (letters H and I) are the same, but the order of them changes the arrangement (the password). Therefore, the problem involves a permutation because the order of letters selected does matter

find the product of 2317 and 9 ​

Answers

Answer:

20,853

Step-by-step explanation:

me right always right

Answer:

20,853

Step-by-step explanation:

To find the product of something you must multiply. 2317x9=20853, which can be found using a calculator


A jar of the chemical contains
741 grams of copper. How many grams of copper. How many grams of zinc does it contain?

Answers

Answer: The answer is 144 grams of zinc

Step-by-step explanation:


(–67) – (-21) =x
Solve for x

Answers

Hey there!☺

\(Answer:\boxed{x=-46}\)

\(Explanation:\)

\(_-67)-(-21)=x\)

In our first step, we will simplify both sides of the equation:

\(-67+21=x\)

Now combine like terms:

\((-67+21)=x\)

Now flip the equation:

\(-46=x\rightarrowx=-46\)

x=-46 is your answer.

Hope this helps!☺

Answer: -46

Step-by-step explanation: Because we are subtracting two negative number, we are moving towards zero. So (-67) - (-1) = -66. We now have -20 left so we subtract that from -66. That will get us -46. Hope this helps.

|x-4|=6x+16 solve equation please

Answers

Step-by-step explanation:

|x-4|=6x+16 To find the absolute value :

x - 4 = 6x + 16 or x - 4 = -6x - 16 for first equation

x - 4 = 6x + 16 export like terms to the same side of the equation

-4 - 16 = 6x - x (The terms chages signs from negative to positive and from positive to negative when exported to the other sideof the equation)

-20 = 5x divide by 5

-4 = x

For the second equation

x - 4 = -6x - 16 export like terms to the same side of the equation

x + 6x = -16 + 4

7x = -12

x = 1.7 approximately

pls help



Don't pass this ​

pls helpDon't pass this

Answers

Answer:     It would be 17 for sure- or 47

Step-by-step explanation:

But i think it's 17 bc/because its says- Rayan gives away so does Gabreille - So i think it would be 17 bc there saying take away!

pls helpDon't pass this

as the sample size increases, the variability among the sample means . a. decreases b. increases c. depends upon the specific population being sampled

Answers

As the sample size increases, the variability among the sample means decreases, option A.

The number of observations used to calculate estimates for a certain population is known as the sample size. The sample size was determined by drawing from the population. Sampling is the practise of choosing a portion of the population from which to draw conclusions about the characteristics of the entire population. A subset of a population is chosen for study based on the number of entities in it.

Population data is a sizable collection of information that covers the whole population under investigation. All the components that are investigated for the research make up a population.

Yet, sample data is a component of the population. Generally, computing the entire population is rather cumbersome and challenging. In this instance, a representative sample of the population is chosen. Sample data refers to this sample.

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Can yall help me with this math problem please! 4+2(x-8)=44

Answers

Answer:

x = 28

Step-by-step explanation:

4 + 2 ( x - 8) = 44

4 + 2x - 16 = 44

2x - 12 = 44

2x - 12 + 12 = 44 + 12

2x = 56

x = 28

By your hand
FOLLOW INSTRUCTIONS A OR B AS ASSIGNED. COUNT THE GRID TO DETERMINE DIMENSIONS. SCALE: FULL SIZE. A: DIMENSION COMPLETELY OMITTING NUMERALS. B: DIMENSION COMPLETELY WITH NUMERALS. 1: GAUGE 2: STOP 3: LOCK 4. MOUNT

Answers

The dimensions of the gauge, stop, lock, and mount are as follows: Gauge: 3x2, Stop: 2x1, Lock: 2x2, Mount: 3x3

The dimensions were determined by counting the number of grid squares in each object. For example, the gauge is 3x2 because it is made up of 3 rows and 2 columns of grid squares. The stop is 2x1 because it is made up of 2 rows and 1 column of grid squares. The lock is 2x2 because it is made up of 2 rows and 2 columns of grid squares. The mount is 3x3 because it is made up of 3 rows and 3 columns of grid squares.

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#Complete Question:- FOLLOW INSTRUCTIONS A OR B AS ASSIGNED. COUNT THE GRID TO DETERMINE DIMENSIONS. SCALE: FULL SIZE. A: DIMENSION COMPLETELY OMITTING NUMERALS. B: DIMENSION COMPLETELY WITH NUMERALS.

1: GAUGE

2: STOP

3: LOCK

4. MOUNT

Find the volume of the cylinder.

Find the volume of the cylinder.

Answers

Answer:

Step-by-step explanation:

V=πr^2h is the equation for volume of a cylinder.

the radius is half of 50 so 50/2=25.

then 75 is the height so you plug the vaules in

V=(3.14)((25)^2)(75)

then multiply and you get 147187.5 rounded to the nearest whole number that is 147188

hope this helps :)

231 students went on a field trip. Four buses were filled and 23 students traveled in cars. How many
students were in each bus?

Answers

Answer:

52

Step-by-step explanation:

231-23=208

208÷4=52

Answer:

52

Step-by-step explanation:

Please help me with my math

Please help me with my math

Answers

3z - 12 = 63
+ 12 +12
3z = 75
z = 25

x + 63 = 180
- 63 - 63
x = 117°

slope of the line ?​

slope of the line ?

Answers

Answer:

your slope would be -3/2

Answer:

-3/2

Step-by-step explanation:

Slope is written rise over run. To figure out the slope, the easiest way is to pick two points on the line. There are already two visible points, so we will use those. If you go up 6 and left 4 on the graph from the bottom point, you can find both of the points. So currently, the slope is -6/4. This can be simplified to the final answer, which is -3/2.

Hope this helps!! Have an amazing day (。・∀・)ノ゙

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