Please help! I'm very confused

The equation that describes the simple harmonic motion of the particle is:

x = 7 * sin(2t + φ)

The equation that describes the simple harmonic motion of a particle moving uniformly around a circle can be represented as:

x = A * sin(ωt + φ)

In this equation:

x represents the displacement of the particle at time t.

A represents the amplitude of the motion.

ω represents the angular frequency or angular speed of the motion.

t represents time.

φ represents the phase constant.

In the given scenario, the particle is moving uniformly around a circle of radius 7 units, with an angular speed of 2 radians per second. In circular motion, the displacement can be represented by the arc length along the circumference of the circle.

Since the angular speed is 2 radians per second, the angular frequency (ω) is also 2 radians per second.

Since the particle is moving uniformly, the amplitude of the motion (A) is equal to the radius of the circle, which is 7 units.

The phase constant (φ) determines the initial position of the particle at t = 0.

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Answer:

p = 1/4

Step-by-step explanation:

This is a one-variable equation.

step 1) 15 - 3p - 10 - 2p = 3p +3

step 2) 5 - 5p = 3p + 3

step 3) 8p = 2

step 4) p = 2/8 = 1/4

Answer:

open the brackets

15-3p-10-2p= 3p+3

collect the like terms

[15-10-3]=3p+3p+2p

this results to,,

2=8p,, devide both sides by 8

p=0.25

The expected gain made by each policy sold is $1.10. The variance of the probability distribution is $101.29. X represents the random variable denoting the expected returns under death or no death scenarios.


To calculate the expected gain, we multiply the probability of death (.001) by the payout ($10,000) and subtract the annual premium ($290). Thus, the expected gain is (0.001 * $10,000) - $290 = $1.10.

To calculate the variance, we need to calculate the squared difference between the actual gain in each scenario (death or no death) and the expected gain. In the death scenario, the gain is $10,000 - $290 = $9,710, and in the no-death scenario, the gain is -$290 (due to the premium payment). The squared differences are (9,710 – 1.10)^2 = 94,413.69 and (-290 – 1.10)^2 = 7,981.69, respectively.

Finally, we multiply each squared difference by its corresponding probability (0.001 for death, 0.999 for no death) and sum them up to obtain the variance. The variance is (0.001 * 94,413.69) + (0.999 * 7,981.69) = 101.29.

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Answer:

2

Explanation:

In short terms, there are two numbers that are reciprocals of themselves, 1 and -1.  According to euler's identity, e^(-i*2*pi) is a reciprocal of itself, but I believe that is beyond the scope of this question.

The volume of water in Container B, to the nearest tenth of a cubic foot, is approximately 243.8 cubic feet.

For Container A: Radius of A = diameter / 2 = 12 ft / 2 = 6 ft

Volume of A = π * 6² * 19 = 2166.48 cubic ft

For Container B:

Radius of B = diameter / 2 = 16 ft / 2 = 8 ft

Volume of B = π * 8² * 12 = 2410.32 cubic ft

The volume transferred from A to B is the volume of A, which is 2166.48 cubic ft.

Now, let's calculate the volume of water in Container B after the transfer:

Volume of water in B = Volume of B - Volume transferred from A

Volume of water in B = 2410.32 - 2166.48 = 243.84 cubic ft

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The probability that fewer than 5 of them say job applicants should follow up within two weeks is given as follows:

P(X < 5) = 0.2065 = 20.65%.

The mass probability formula is defined by the equation presented as follows:

\(P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}\)

\(C_{n,x} = \frac{n!}{x!(n-x)!}\)

The parameters, along with their meaning, are presented as follows:

The parameters values are given as follows:

n = 13, p = 0.46.

The probability for less than 5 is given as follows:

P(X < 5) = P(X = 0) + P(X = 1) + P(X = 2) + P(X = 3) + P(X = 4).

Using a calculator with the given parameters, the probability is of:

P(X < 5) = 0.2065 = 20.65%.

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Generally, the equation of a circle is organized like this: \((x-h)^2+(y-k)^2=r^2\), where (h,k) is the centre and r is the radius.

We're given the endpoints of the diameter: \((-6,-3)\) and \((-6,-8)\).

First, we can find the centre of the circle by finding the midpoint of these two endpoints.

\(midpoint=(\dfrac{x_1+x_2}{2},\dfrac{y_1+y_2}{2})\)

Plug in the points:

\(midpoint=(\dfrac{-6+-6}{2},\dfrac{-3+-8}{2})\\\\midpoint=(-6,\dfrac{-11}{2})\)

Therefore, the centre of the circle is \((-6,\dfrac{-11}{2})\). Plug this into the general equation:

\((x-h)^2+(y-k)^2=r^2\\\\(x-(-6))^2+(y-(-\dfrac{11}{2}))^2=r^2\\\\(x+6)^2+(y+\dfrac{11}{2})^2=r^2\)

To find the radius of the circle, we can calculate the distance between the centre and one of the given endpoints:

\(d=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2\)

Plug in the centre and one of the endpoints:

\(d=\sqrt{(-6-x_1)^2+(\dfrac{-11}{2}-y_1)^2}\\d=\sqrt{(-6-(-6))^2+(\dfrac{-11}{2}-(-3))^2}\\d=\sqrt{(-6+6)^2+(\dfrac{-11}{2}+3)^2}\\\\d=\sqrt{(0)^2+(-5.5+3)^2}\\\\d=\sqrt{(0)^2+(-2.5)^2}\\\\d=\sqrt{(0)^2+(-\dfrac{5}{2})^2}\\\\d=\sqrt{0+\dfrac{25}{4}}\\d=\sqrt{\dfrac{25}{4}}\\\\d=\dfrac{5}{2}\)

Therefore, the radius of the circle is \(\dfrac{5}{2}\). Plug this into the general equation:

\((x+6)^2+(y+\dfrac{11}{2})^2=r^2\\\\(x+6)^2+(y+\dfrac{11}{2})^2=(\dfrac{5}{2})^2\\\\(x+6)^2+(y+\dfrac{11}{2})^2=\dfrac{25}{4}\)

\((x+6)^2+(y+\dfrac{11}{2})^2=\dfrac{25}{4}\)

a) The area of the surface of the water in the pool is 100,000 square feet.

b) The pool holds 1,000,000 cubic feet of water when filled to the top.

a) To find the area of the surface of the water in the pool, we can simply multiply the length and width of the pool:

Area of surface of water = length x width

= 1,000 ft x 100 ft

= 100,000 square feet

So, the area of the surface of the water in the pool is 100,000 square feet.

b) To find how much water the pool holds, we need to calculate its volume. The volume of a rectangular prism (like a swimming pool) is calculated by multiplying its length, width, and height

Volume of pool = length x width x height

= 1,000 ft x 100 ft x 10 ft

= 1,000,000 cubic feet

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The given question is incomplete, the complete question is:

A large rectangular swimming pool is 1,000 feet long, 100 feet wide, and 10 feet deep. The pool is filled to the top with water.

a) What is the area of the surface of the water in the pool?

b) How much water does the pool hold?

The value of integer a and b  after the equation are 1 and 2 respectively

An integer is a whole number that can be positive, negative, or zero, but cannot be a fraction or a decimal. Integers are a subset of the real numbers and can be represented on a number line with equally spaced points. Examples of integers include -3, 0, 5, and 100.

(4-√5)×(4+√5)/2√11

solving the equation

=4²-(√5)²/2√11

=16-5/2√11

=11/2√11

=√11/2

=1/2×√11

Comparing it with (a/b)×√11

Hence, the value of integer a and b are 1 and 2 respectively.

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the complete question is:

Write (4-root5)(4+root5)/2 root 11 in the form of root (a/b)×√11

Where a and b are interger.

Answer:

I think its like a cartoon or something like that

https://hbomax-images.warnermediacdn.com/images/GXyniGAhmEcJZOgEAAABz/tileburnedin?size=1280x720&format=jpeg&partner=hbomaxcom&productCode=hbomax&host=artist.api.cdn.hbo.com&w=1200

there image I think

The correct answer is c. $100,000.

The required reserve ratio is the percentage of deposits that banks are required to hold as reserves. In this case, Bank A has total deposits of $10 million and the required reserve ratio is 9 percent. Therefore, Bank A is required to hold reserves equal to 9% of its deposits, or:

Reserves required = 0.09 x $10,000,000 = $900,000

However, the bank currently has actual reserves of $1 million, which means it has excess reserves equal to:

Excess reserves = Actual reserves - Reserves required

Excess reserves = $1,000,000 - $900,000 = $100,000

Therefore, the correct answer is c. $100,000.

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C. May or may not increase in size even if the added variable has statistical significance.

The R-squared value measures the proportion of variance in the dependent variable that is explained by the model, including the independent variable.

Therefore, if an independent variable is added to the model and it is statistically significant, then it will increase the R-squared value. However, if the variable added is not statistically significant, then it will not have an effect on the R-squared value.

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the tax estimated to be collected by the government during the financial year 2020/21 is 666.9 billion rands.

why it is and what is a financial year?

The tax estimated to be collected by the government during the financial year 2020/21 is not explicitly given in the table. However, the total revenue collected by the government during the financial year 2020/21 is given, which is:

666.9 billion rands

Therefore, the tax estimated to be collected by the government during the financial year 2020/21 is 666.9 billion rands.

A financial year (also known as fiscal year) is a period of 12 months that a company or government uses for financial reporting and accounting purposes. It does not necessarily correspond to the calendar year, which is a period of 12 months starting on January 1st and ending on December 31st.

The financial year is important because it helps organizations to keep track of their financial performance over a consistent period of time, which facilitates comparison of financial results from year to year. The financial year is often chosen to align with a company's operational cycle, which may be seasonal or have other considerations that affect the timing of revenues and expenses.

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Answer:

a^4*b^6

Step-by-step explanation:

If we share $60 in the ratio 3:1, then each person will get is $45 and $15 respectively

Given,

The total amount = $60

The ratio = 3:1

Then the amount given to first person = 3x

The amount given to the second person = x

Given that the total amount is 60

Then  the equation will become

x+3x=60

4x=60

x=\(\frac{60}{4}\)

x=15

The amount given to the first person = 3x

Substitute the value of x in the equation

The amount given to the first person =3x

=3×15

= $45

The amount given to the second person =x

= $15

Hence, if we share $60 in the ratio 3:1, then each person will get is $45 and $15 respectively

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Answer:

36 is the median of give data

Answer:

A. $1,482,000

Step-by-step explanation:

I took the quiz on edge 2020 and got it right

Answer:

the answer is a

Step-by-step explanation:

There are 4 friends in the group.

Poker: In poker, the number of each card in the deck is important. A standard deck of poker cards has 52 cards, with 13 cards in each of the four suits (hearts, diamonds, clubs, spades). Each suit has cards numbered 2-10, plus a jack, queen, king and ace. This allows for the calculation of odds and probability in the game.

If each person received 12 trading cards and 48 cards in the package, you can use division to find how many people are in the group.

We know that:

48 trading cards / 12 trading cards per person = 4 people

Therefore, there are 4 friends in the group.

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You can use division to determine the number of people in the group if each person got 12 trading cards and there were 48 total cards in the package.

12 trading cards per individual times 48 trading cards equals four people.

As a result, the company consists of 4 friends.

-2 1/5

at least I think so lol

Answer:

The approximate year that the two ad revenues were equal is halfway

Step-by-step explanation:

The point which is located on the ray PQ as required in the task content given that the points M, N, O, P, Q, R, S are collinear is; point R.

It follows from the task content that the point which is located on the ray PQ is to be identified among the given answer choices.

Since all points given are said to be contained on a line, it can therefore be inferred that the points are collinear.

Also, by the definition of a ray; it follows that the ray PQ is one which starts from P and goes through Q and continues in the direction of Q.

Ultimately, the point which is located on such ray as described above among the answer choices is the point R.

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Answer:

Point R

Step-by-step explanation:

Answer: 15

Step-by-step explanation:

just substitute 2 for p.

2 + 13 = 15

Answer:

x=−27/26

and y=−192/13

Step-by-step explanation:

6x+y=−21;8x−3y=36

Step: Solve6x+y=−21for y:

6x+y=−21

6x+y+−6x=−21+−6x(Add -6x to both sides)

y=−6x−21

Step: Substitute−6x−21foryin8x−3y=36:

8x−3y=36

8x−3(−6x−21)=36

26x+63=36(Simplify both sides of the equation)

26x+63+−63=36+−63(Add -63 to both sides)

26x=−27

26x

26

=

−27

26

(Divide both sides by 26)

Answer:

we know that distance = speed *time

hence d= t*s

=2*0.72{ no need to convert into second and meter because both are given in km and hr}

=1.44 m

The markers identified when identifying significant digits include:

Significant digits in mathematics refers to digits that  are meaningful in mathematical calculations. This implies that their position and the quantity alters the value of the number. The particular digit and the position determines whether the digit is significant or not.

Instances of digits with their locations that are significant are:

These instances results to significant digits while the instances below the digits are insignificant:

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The number of ways she can select her new vehicle is:3 (options for type) x 3 (options for make) x 5 (options for color) = 45.Therefore, Laura has 45 ways to select her new vehicle.

Laura is shopping for a new car. She has to make three decisions: type (sedan, SUV, or pickup truck), make (Ford, GM, or Chrysler), and color (black, white, red, silver, or yellow). In how many ways can she select her new vehicle? In order to find the number of ways Laura can select her new vehicle, we have to count the number of possibilities for each decision and then multiply them together.

So, let's start by counting the possibilities for the type of car she wants to buy. Since there are three types of cars she can buy, Laura has three options for the type of car she wants to buy. Now, let's consider the make of the car she wants to buy. Since there are three makes to choose from, Laura has three options for the make of the car she wants to buy. Finally, let's consider the color of the car she wants to buy.

Since there are five colors to choose from, Laura has five options for the color of the car she wants to buy. To find the total number of ways Laura can select her new vehicle, we simply need to multiply the number of possibilities for each decision.

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The probability at least 7 of the puppies will be male is approximately 0.0805 or 8.05%.

To determine the probability that at least 7 of the puppies will be male, we will have to use the binomial probability formula.

P(X ≥ k) = 1 - P(X < k)

where X is the number of male puppies, P is the probability of a puppy being male and k is the minimum number of male puppies required.

We can solve this problem by finding the probability that 0, 1, 2, 3, 4, 5, or 6 of the puppies are male, and then subtracting that probability from 1. We use the binomial distribution formula to find each of these individual probabilities.

P(X=k) = nCk * pk * (1-p)n-k

where n is the total number of puppies, p is the probability of a puppy being male (0.5), k is the number of male puppies, and nCk is the number of ways to choose k puppies out of n puppies. We'll use a calculator to compute each probability:

P(X < 7) = P(X=0) + P(X=1) + P(X=2) + P(X=3) + P(X=4) + P(X=5) + P(X=6)

P(X = 0) = 11C0 * 0.5⁰ * (1-0.5)¹¹ = 0.00048828125

P(X = 1) = 11C1 * 0.5¹ * (1-0.5)¹⁰ = 0.00537109375

P(X = 2) = 11C2 * 0.5² * (1-0.5)⁹ = 0.03295898438

P(X = 3) = 11C3 * 0.5³ * (1-0.5)⁸ = 0.1171875

P(X = 4) = 11C4 * 0.5⁴ * (1-0.5)⁷ = 0.24609375

P(X = 5) = 11C5 * 0.5⁵ * (1-0.5)⁶ = 0.35595703125

P(X = 6) = 11C6 * 0.5⁶ * (1-0.5)⁵ = 0.32421875

P(X < 7) = 0.00048828125 + 0.00537109375 + 0.03295898438 + 0.1171875 + 0.24609375 + 0.35595703125 + 0.32421875 = 1 - P(X < 7) = 1 - 1.08184814453 = -0.08184814453 ≈ 0.0805

Therefore, the probability that at least 7 of the puppies will be male is approximately 0.0805 or 8.05%.

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Answer:

The average speed of the cyclist would be 14.5 km/hour.

Step-by-step explanation:

64/4=16

26\2=13

16+13=29

29/2=14.5