The position function of a particle in rectilinear motion is given by s(t) s(t) = t3 - 9t2 + 24t + 1 for t ≥ 0 with t measured in seconds and s(t) measured in feet. Find the position and acceleration of the particle at the instant when the particle reverses direction. Include units in your answer.

Answers

Answer 1

Answer:

[tex]s = 21\ ft\\\\a = -6\ \frac{ft}{s^2}[/tex]

Step-by-step explanation:

To find the changes in the slope of the function s(t) we find its derivative

[tex]\frac{ds(t)}{dt} = 3t^2 - 18t +24\\[/tex]

Now we make [tex]\frac{ds(t)}{dt} = 0[/tex]

[tex]3t^2 - 18t +24 = 0[/tex]

[tex]3t^2 - 18t +24\\\\3(t^2-6t + 8)\\\\3(t-4)(t-2)\\\\t_1 =4\\t_2=2\\[/tex]

The particle changes direction for the first time at t = 2 sec

The position at t = 2 sec is:

[tex]s(t=2) = (2)^3 - 9(2)^2 + 24(2) + 1\\\\\s(2) = 21\ ft[/tex]

The acceleration after t = 2 sec is the second derivative of s(t), evaluated at t = 2:

[tex]\frac{d^2s(t)}{d^2t} = 6t -18\\\\\frac{d^2s(t)}{d^2t}(2) = 6(2) -18\\\\ a = 12-18\\\\a = -6\ \frac{ft}{s^2}[/tex]

Answer 2

Answer:

The position is 21 feet

The acceleration is -6 ft/sec²

Step-by-step explanation:

∵ s(t) = t³ - 9t² + 24t + 1

- where s is the displacement in feet and t is the time in second

∵ v(t) = ds/dt ⇒ velocity is the differentiation of s(t)

∵ a(t) = d²s/dt² = dv/dt ⇒ acceleration is the differentiation of v(t)

∴ v(t) = 3t² - 18t + 24

∵ When the particle reverses means v(t) = 0

∴ 3t² - 18t + 24 = 0 ⇒ ÷ 3

∴ t² - 6t + 8 = 0

∴ (t - 2)(t - 4) = 0

∴ t - 2 = 0 ⇒ t = 2 seconds

∴ t - 4 = 0 ⇒ t = 4 seconds

- That means the particle will change its direction first after 2 seconds

  and again after 4 seconds

∵ a(t) = dv/dt

∴ a(t) = 6t - 18

∵ t = 2

∴ a(2) = 6(2) - 18 = 12 - 18 = -6 ft/sec²

∵ s(t) = t³ - 9t² + 24t + 1

∴ s(2) = 2³ - 9(2)² + 24(2) + 1 = 21 feet


Related Questions

PLEASE HELP: CONSUMER MATH
you go to the whome insurance company for auto insurance the charge $525.00 as a base rate for six months of insurance for your vehicle they offer a 15% discount for safe driver habits and a 10% discount for an excellent credit rating of 5% for a good rating the increase the rate by 5% and 10% respectively for a fair or poor credit rating you have a fair credit rating and qualify for the safe driver discount how much do the insurance cost you per month?

The answer for this is 78.09

You purchase a new car for $17,000 and are able to acquire a loan because
of your excellent credit score. How much is the total interest and insurance per
month if you use the Whome Insurance Company from question 3 for your insurance
coverage and don't qualify for the safe driver discount?



Credit

APR (%)


Excellent

5.90


Answers

Answer:

78.09

Step-by-step explanation:

Answer:

1.78.09

2. 2755.59

Step-by-step explanation:

you go to the whome insurance company for auto insurance the charge $525.00 as a base rate for six months of insurance for your vehicle they offer a 15% discount for safe driver habits and a 10% discount for an excellent credit rating of 5% for a good rating the increase the rate by 5% and 10% respectively for a fair or poor credit rating you have a fair credit rating and qualify for the safe driver discount how much do the insurance cost you per month?

Insurance is more like a protection against any risk associated with vehicles, assets, buildings and lives.

the charge form the insurer is $525 with a 15% discount means

525 * 0.85 = 446.25    

or525-(525*15%)

aand increment in rate after 6 months

446.25 * 1.05 = 468.56  or  

446.25+446.25+5%

468.56 / 6 =

78.09

2. if the cost of the vehicle is 17000

a discount of 10%b for an excellent credit rating equals

17000*.90

$15300+1.05

16065

therefore per month he is going to pay 16065/6

$2677.5

add answer +78.09=2755.59

Determine whether the system of linear equations has one and only one solution, infinitely many solutions, or no solution. 4x − y = −5 12x − 3y = 15 one and only one solution infinitely many solutions no solution Find the solution, if one exists. (If there are infinitely many solutions, express x and y in terms of the parameter t. If there is no solution, enter NO SOLUTION.) (x, y) =

Answers

Answer:

NO SOLUTION.

Step-by-step explanation:

4x - y    =  -5

12x - 3y  = 15

Multiply the first equation by 3:

12x - 3y = -15

Note that the left side of this equation is the same as the left side of the second one, but the right sides are different.  The left side cannot be equal to 2 different values. Therefore there  is NO SOLUTION.

Note if we subtract the last 2 equations we get:

0 = 30  which is, of course, absurd.

Assume that adults have IQ scores that are normally distributed with a mean of mu equals 100 and a standard deviation sigma equals 15. Find the probability that a randomly selected adult has an IQ less than 130.

Answers

Answer:

The probability would be 97.8%

Step-by-step explanation:

In order to find that, lets look at the amount of standard deviations away the amount given is. Since the number is 30 away from the mean, and the standard deviation is 15, we can find the total number of deviations it is away.

30/15 = 2

Now that we have that, we can look at the probability curve for standard deviations. Outside of 2 standard deviations above is only a 2.2% likelihood. Since that is the case, we can find the amount that would be under that as 100% minus the amount we just found.

100% - 2.2% = 97.8%

Find the missing side length. Round your answer to the nearest tenth.

5.5
21.3
30.8
43.2

Answers

Answer:

5.545

Step-by-step explanation:

This problem can be easily solved by using the law of cosines, which relates the lengths of the sides of a triangle to the cosine of one of its angles.

in this case, the formula can be applied in the following way

a^2 = b^2  + c^2  - 2*b*c*cos(α)

Where

a,b,c are each of the sides of the triangle,

α is the angle between sides b and c

(See attached picture)

If we use the formula we get

a^2 = (9)^2 + (6)^2 - 2*(9)(6)*cos(37°)

a^2 = 81 + 36 - 86.2526

a^2 = 30.747

a = sqrt(30.747)

a = 5.545

Kim and her 2 brothers each use 1 1/2 cups of milk for breakfast.How many fluid ounces of milk do they use in 4 day's

Answers

Answer:

The amount of fluid used in 4 days will be 18 ounces

Step-by-step explanation:

Since each of them use 1 1/2 cups and they are 3

so the collective amount in 1 day will be

3 * 1 1/2 = 9/2

Now

The amount in 4 days will be

4 * 9/2 = 18

Therefore they will collectively use 18 ounces in 4 days

Point a (-7 -2) is rotated 270 clockwise rotation and shifted 3 units downs what is the coordinate of K'

Answers

Final answer:

To find the coordinate of K', we first rotate point a (-7,-2) 270 degrees clockwise. Then, we shift the resulting coordinates 3 units down. The coordinate of K' is (-7, -5).

Explanation:

To find the coordinate of K', we first need to rotate point a (-7,-2) 270 degrees clockwise. To do this, we can use the rotation matrix:

[cos(theta)  -sin(theta)] [x]
[sin(theta)  cos(theta)]  [y]

Plugging in the values, we get:

[cos(270)  -sin(270)] [-7]
[sin(270)  cos(270)]  [-2]

Simplifying, we have:

[-0 -1] [-7]
[1  0]]  [-2]

Multiplying, we get:

[0 -7]
[1  0]]

Now, we shift the resulting coordinates 3 units down. Adding -3 to the y-coordinate, the coordinate of K' is (-7, -5).

Two computers working together can finish a search in 40 seconds. One of these computers can finish in 60 seconds. How long would it take the second computer to finish the same search?

Answers

Let the time taken by 2nd computer be = x

Time taken by first computer = 60 seconds

Total time taken by both = 40 seconds

So, equation becomes:

[tex]\frac{1}{60}+\frac{1}{x}=\frac{1}{40}[/tex]

[tex]\frac{-1}{x}=\frac{1}{60}-\frac{1}{40}[/tex]

Solving this we get,

x=120 seconds

Hence, the 2nd computer will take 120 seconds to finish a search alone.

It would take the second computer 120 seconds to finish the same search

Equation

An equation is an expression used to show the relationship between two or more variables and numbers.

Let x represent the rate of the first computer and y represent the rate of the second computer.

Two computers working together can finish a search in 40 seconds. Hence:

(1/x + 1/y)40 = 1

It takes one of the computer 60 seconds, hence:

(1/x + 1/60)40 = 1

40/x + 2/3 = 1

x = 120 seconds

Therefore it would take the second computer 120 seconds to finish the same search

Find out more on equation at: https://brainly.com/question/13763238

Jeremy and Robin like to collect nickels. Jeremy has n nickels, and Robin has 55 nickels. Together they have a total of 100 nickels.

Answers

Answer:

Jeremy has 45 nickels.

Step-by-step explanation:

I'm guessing the question is how many nickels does Jeremy have.

n + 55 = 100

n = 45

Answer:

45 nickels.

Step-by-step explanation:

We have been given that Jeremy and Robin like to collect nickels. Jeremy has n nickels, and Robin has 55 nickels. Together they have a total of 100 nickels.

We can represent our given information in an equation as:

[tex]n+55=100[/tex]

[tex]n+55-55=100-55[/tex]

[tex]n=45[/tex]

Therefore, Jeremy has 45 nickels.

Find the limit , picture provided

Answers

Answer:

d. does not exist

Step-by-step explanation:

The given limits are;

[tex]\lim_{x \to 4} f(x) =5[/tex], [tex]\lim_{x \to 4} g(x) =0[/tex] and [tex]\lim_{x \to 4} h(x) =-2[/tex]

We want to find

[tex]\lim_{x \to 4} \frac{f}{g}(x)= \lim_{x \to 4} \frac{f(x)}{g(x)}[/tex]

By the properties of limits, we have;

[tex]\lim_{x \to 4} \frac{f}{g}(x)= \frac{\lim_{x \to 4} f(x)}{\lim_{x \to 4} g(x)}[/tex]

This gives us;

[tex]\lim_{x \to 4} \frac{f}{g}(x)= \frac{5}{0}[/tex]

Division by zero is not possible. Therefore the limit does not exist.

Tobias’s closet has 1 red hat and 1 black hat; 1 white shirt, 1 black shirt, and 1 black-and-white-striped shirt; and 1 pair of black pants and 1 pair of blue pants. He is picking an outfit by reaching into his closet and randomly choosing a hat, a shirt, and a pair of pants. How many possible outfit combinations are there?




Answer: C) 12

Answers

Answer:

12

Step-by-step explanation:

Let's calculate how many possible outfits does Tobias has.

Hats: 2, Shirts: 3, Pants: 2

If he's picking everything at random blindly from his closet, he could pick any of the hats, any of the shirts and any of the pants.  That makes a total of:

2 x 3 x 2 = 12 possible combinations.  

That doesn't mean the arrangement will look pretty :-)

Final answer:

Tobias has 12 possible outfit combinations from his closet. This is calculated by multiplying the choices he has for each item of clothing: 2 hats, 3 shirts, and 2 pairs of pants.

Explanation:

In this mathematics problem, Tobias has 2 hats, 3 shirts, and 2 pairs of pants. In such problems, an easy rule to remember is that for independent choices you multiply your options. So, for his hats, he has 2 options. For shirts, he has 3 options and for pants, he has 2 options. To find the total number of outfit combinations, just multiply these options: 2 (hats) * 3 (shirts) * 2 (pants) = 12 possible outfit combinations. Therefore, Tobias can mix and match his clothing items to make 12 different outfits.

Learn more about Combination here:

https://brainly.com/question/39347572

#SPJ12

For his lunch, David is making a sandwich that must consist of bread, cheese, and meat. David can choose from white, French or rye bread, either American or Swiss cheese, and the choice of turkey, ham or pastrami as a meat. Create a tree diagram to represent the combinations of bread, cheese, and meat David could make for his sandwich. 4. Joel has an MP3 player called the Jumble. The Jumble randomly selects a song for the user to listen to. Joel's Jumble has 2 classical songs, 13 rock songs, and 5 rap songs on it. What is the probability that the first song that Joel hears is a rap song?

Answers

4. You total the songs to find out how many possibilities all together = 20

Then how many of those are rap songs = 5

So the probability of getting rap songs is 5/20 or (simplified) 1/4

Final answer:

Explanation of sandwich combinations using a tree diagram and computation of the probability for Joel's first song being rap.

Explanation:

Tree Diagram for David's Sandwich Combinations:

Bread: {white, French, rye}Cheese: {American, Swiss}Meat: {turkey, ham, pastrami}

Probability for Joel's Jumble:

Total songs: 2 classical, 13 rock, 5 rapProbability of first song being rap: 5 rap songs / (2 + 13 + 5 total songs) = 5/20 = 1/4

The measure of the angle formed by two intersecting perpendicular lines is 90°.
A. true
B. false

Answers

Answer: True, the measure of the angle formed by two intersecting perpendicular lines should be 90 degrees.

Answer:

True.

Step-by-step explanation:

You can see it with the cartesian plane. The cartesian plane are two intersecting perpendicular lines. The intersection point is the (0,0) and each cuadrant is 90°. 90°(4 cuadrants) = 360° .

Match the function with its graph.

Answers

Answer:

The answer is 1D , 2A , 3C , 4B ⇒ answer (c)

Step-by-step explanation:

* Lets talk about the transformation

- If the function f(x) reflected across the x-axis, then the new

 function g(x) = - f(x)

- If the function f(x) translated horizontally to the right  

 by h units, then the new function g(x) = f(x - h)

- If the function f(x) translated horizontally to the left  

 by h units, then the new function g(x) = f(x + h)

* Lets explain each function

∵ y = tan(x)

∵ y = -tan(x - π/2)

# (x - π/2) means the graph translated horizontally to

  the right π/2 units

# -tan(x - π/2) means the graph reflected across the x-axis

∴ The graph is (D)

* 1) y = -tan(x - π/2) ⇒ (D)

∵ y = tan(x + π/2)

# (x + π/2) means the graph translated horizontally to

  the left π/2 units

∴ The graph is (A)

* 2) y = -tan(x - π/2) ⇒ (A)

∵ y = -cot(x - π/2)

# (x - π/2) means the graph translated horizontally to

  the right π/2 units

# -cot(x - π/2) means the graph reflected across the x-axis

∴ The graph is (C)

* 3) y = -cot(x - π/2) ⇒ (C)

∵ y = cot(x + π/2)

# (x + π/2) means the graph translated horizontally to

  the left π/2 units

∴ The graph is (B)

* 4) y = -tan(x - π/2) ⇒ (B)

∴ The answer is 1D , 2A , 3C , 4B answer (c)

Change from General Conic Form to Standard Form: 137+64y=-y^2-x^2-24x



Answers

Answer:

(x + 12)² + (y + 32)² = 1031  

Step-by-step explanation:

137 + 64y = -y² - x² - 24x

Arrange the terms in descending powers of x and y.

x² + 24x  + y² + 64y = -137

Complete the squares  for x and y

(x² + 24x  + 144) + (y² + 64y + 1024) = -137 + 144 + 1024

Write the equation as the  squares of binomials of x and y

(x + 12)² + (y + 32)² = 1031

This is the equation of a circle with centre at (-12, -32) and radius r = √1031.

Help with this question, please!! I need some help ASAP!

Answers

Answer:

C

Step-by-step explanation:

C is the most logical answer

Which term describes what manufactured spends for goods or services A.Cost B.Price C.Markups

Answers

The cost is what the manufacturer spends to make something

If a working was originally $25 and it is on sale for $18 what is the percent of discount

Answers

First we must subtract 25 in 18 because we are doing percentages.

So we do [tex]25 - 18  = 7[/tex]

So we get 7.

Now we need to do [tex]7/25 * 100% = 28%[/tex]

We would get a total of 18% of on the discount.

(p+q)* (p-q) can you answer this question cause i cant and can you show the process also

Answers

Answer:

Step-by-step explanation:

A rectangle has a length that is 2 meters more than the width. The area of the rectangle is 288 square meters. Find the dimensions of the rectangle.

Answers

Answer:

L = 18 and w = 16

Step-by-step explanation:

The area of a rectangle is found by A = l*w. Since the length here is 2 more than the width or 2 + w and the width is w, substitute these values and A = 288 to solve for w.

[tex]A = l*w\\288 = w(2+w)\\288 = w^2 + 2w[/tex]

To solve for w, move 288 to the other side by subtraction. Then factor and solve.

[tex]w^2 + 2w  - 288 = 0 \\(w +18)(w-16) = 0\\[/tex]

Set each factor equal to 0 and solve.

w - 16 = 0 so w = 16

w + 18 = 0 so w = -18

Since w is a side length and length/distance cannot be negative, then w = 16 is the width of the rectangle.

This means the length is 16 + 2 = 18.

Based on the dartboard shown below, what is the probability of a random throw hitting a section that is pink or 1?

Answers

Answer:

Step-by-step explanation:

5 out of 8 because there are four one spaces and one pink space so that equals 5 and there are a total of 8 spaces to hit

Answer:

5/8.

Step-by-step explanation:

There are a total of 8 sectors of which 4 are 1 and 1 is pink.

So Prob (hitting a 1) = 4/8 = 1/2.

Prob (hitting a pink) = 1 /8.

So the probability of hitting a pink or a 1 = 1/2 + 1/8

= 5/8.

The isosceles trapezoid ABDE is part of an isosceles triangle ACE. Find the measure of the vertex angle of ACE. (See attachment)


A. 130 degrees

B. 60 degrees

C. 65 degrees

D. 50 degrees


I really need an explanation along with the answer, thank you!!

Answers

Answer:

We know that [tex]\triangle ACE[/tex] is isosceles, that means [tex]\angle A \cong \angle E[/tex], by definition.

Also, [tex]\angle BDC \cong \angle DBC[/tex], because [tex]BD \parallel AE[/tex].

Then, we have [tex]115\° + \angle BDC = 180\°[/tex], by sumpplementary angles.

[tex]\angle BDC = 180 -115 = 65\° = \angle DBC[/tex]

Which means,

[tex]\angle C= 180 - 65 - 65[/tex], by definition.

[tex]\angle C= 50[/tex]

Then,

[tex]\angle A + \angle E + 50 = 180\\2\angle A = 180 - 50\\\angle A= \frac{130}{2}=65 = \angle E[/tex]

Therefore, the measures of vertex angles are 65 for the base angles of triangle and 50 for the different angle.

For the geometric series given by 1+2+4+ which of the following statements is FALSE?

S600>a600

S600>S599

S1=a1

None of the other 3 statements here are false

Answers

Final answer:

The false statement among the options given is 'None of the other 3 statements here are false', because all the other three statements about the geometric series are actually true.

Explanation:

The question presents a geometric series: 1, 2, 4, ... Each term is double the previous term, which means that for this series, the common ratio (r) is 2. Now let us analyze the statements given:

S600 > a600: The sum of the first 600 terms of the series will be greater than the 600th term.

This is true, since the sum of a geometric series to n terms is given by the formula Sn = a1(1 - rn)/(1 - r) for r > 1, where Sn is the sum of the first n terms, a1 is the first term, and r is the common ratio.

Since the sum involves multiple terms and all terms are positive, it will be bigger than the last term.

S600 > S599: The sum of the first 600 terms will be greater than the sum of the first 599 terms.

This is also true, since each term added to the series is positive, so the sum will increase.

S1 = a1: The sum of the first term equals the first term itself.

This is true because the first term of the series is 1, and the sum of just one term (i.e., the first term) is the term itself.

Therefore, the false statement is 'None of the other 3 statements here are false' because actually, none of the other three statements provided are false.

Final answer:

The presented geometric series has a common ratio greater than 1, so the sum of the first 600 terms is greater than the 600th term; similarly, the sum of 600 terms is greater than the sum of 599 terms. Since all provided statements are true, the answer is that 'None of the other 3 statements here are false'.

Explanation:

The question presents a geometric series with the first term 1 and a common ratio of 2. This series is 1+2+4+8+... and so on. We are asked to identify which of the given statements is false regarding the series.

S600 > a600: This statement says that the sum of the first 600 terms is greater than the 600th term. In a geometric series where the common ratio is greater than 1, the sum of the first n terms is indeed greater than the nth term, so this statement is true.S600 > S599: This statement indicates that the sum of the first 600 terms is greater than the sum of the first 599 terms. Since each term in the series is positive, adding another term will always increase the sum, thus this statement is also true.

S1 = a1: This statement equates the sum of the first term to the first term itself. Since there's only one term involved, they are the same. Therefore, this statement is true.

By process of elimination, since the other statements are true, the correct answer would be 'None of the other 3 statements here are false'.

What is the parabola’s line of symmetry?
y-axis
x-axis
x = p
x = -p

Answers

The parabola's line of symmetry is the x-axis.

y = 1/4p x²

Replace  x  with  −  x  and  y  with  − y  to check if there is x-axis, y-axis , or origin symmetry.  

Symmetric with respect to the y-axis

What is the value of x? If sin (8x - 18)º = cos (5x + 4)°

Answers

Answer:

Answer x  = 8

Step-by-step explanation:

(5x + 4) + (8x - 18)= 90      The two angles must be complementary for this to work. Remove the brackets

5x + 4 + 8x - 18 = 90          Collect like terms

13x - 14 = 90                        Add 14 to both sides

13x = 104                              Divide by 13  

x = 8 Answer

Check

Sin(8*8 - 18) = sin(64 - 18) = sin(46) = 0.7193

Cos(5*8 + 4) = cos(44) = 0.7193

This problem is very interesting. Thanks for posting.

Please help!

Given the following: mED=mDB=mBC


In circle F, what is the measure of EFD?


A. 17.5°

B. 35°

C. 60°

D. 70°

Answers

Answer: Option D.

Step-by-step explanation:

To solve this exercise you must keep on mind the Angle at the Center Theorem.

According to the  Angle at the Center Theorem, an inscribed angle is half of the central angle.

Therefore, given in the inscribed angle m∠BAC=35°, you can calculate the central angle m∠EFD as following:

[tex]BAC=\frac{EFD}{2}[/tex]

- Solve for EFD.

[tex]EFD=2*BAC[/tex]

- When you substitute values. you obtain:

[tex]EFD=2(35\°)\\EFD=70\°[/tex]

Answer:

Option B. ∠EFD = 35°

Step-by-step explanation:

In a circle F, it has been given mED = mDB = mBC

We have to find the measure of ∠EFD

We should always remember the inscribed angle theorem which states that the measure of an inscribed angle is always half the measure of intercepted arc.

m(arc BC) = 2×∠CAB = 2×35 = 70°

Now it has been given in the question

mED = mBC

Therefore m(arc ED) = 70°

Again applying the same theorem

m(arc ED) = 2×∠EFD

70° = 2×∠EFD

m∠EFD = [tex]\frac{70}{2}=35[/tex]

Option B. 35° is the answer.

Andrea is designing the seating arrangement for a concert in her local park.

The 1st row can only have 10 seats, and each row must have 4 more seats than the row in front of it.

How many seats will be in the 10th row of seats?

Answers

Answer:

There are 46 seats in row 10

Step-by-step explanation:

In order to find that we need to write this as an equation. We know that 6 is the constant and 4 is the coefficient for the variable. This would give us the equation:

y = 4x + 6

And this satisfies the equation for row 1, since when we put in the row number for x, it gives us the correct number of seats.

y = 4x + 6

y = 4(1) + 6

y = 4 + 6

y = 10

Now we can use that equation for any row. Let's use it for row 10

y = 4x + 6

y = 4(10) + 6

y = 40 + 6

y = 46

Yi is told that the item that she wants to buy is still available at a store that is 3/4 inch on a map from her current location. If the scale of the map is 1 inch= 12 miles, how far away is yi from the store?

Answers

9 miles from the store

3/4 of 12=9

Answer:

9 miles.

Step-by-step explanation:

We have been given that Yi is told that the item that she wants to buy is still available at a store that is 3/4 inch on a map from her current location. The scale of the map is 1 inch= 12 miles.

To find the actual distance between Yi and store we will multiply 3/4 by 12 as:

[tex]\text{The distance between Yi and store}=\frac{3}{4}\text{ inch}\times \frac{\text{12 miles}}{\text{inch}}[/tex]

[tex]\text{The distance between Yi and store}=\frac{3}{4}\times \text{12 miles}[/tex]

[tex]\text{The distance between Yi and store}=3\times \text{3 miles}[/tex]

[tex]\text{The distance between Yi and store}=9\text{ miles}[/tex]

Therefore, Yi is 9 miles away from the store.

A game has 3 possible outcomes, with probabilities p1, p2, and p3. The amount of money that you will win or lose for each outcome is v1, v2, and v3, respectively. What is the expression p1v1 + p2v2 + p3v3 equal to?

The total amount you will win (or lose) in the long run.

The average amount you will win (or lose) per game in the long run.

The exact amount you will win (or lose) per game.

The amount that you will win (or lose) for 3 games.

Answers

That expression is the expected value of your winnings, or "the average amount you will win (or lose) per game in the long run".

Answer:

Step-by-step explanation:

Given that a game has 3 possible outcomes, with probabilities p1, p2, and p3

The amount win or lose for each outcome is v1, v2, and v3, respectively.

If X is the amount of win or lose then x has the following prob distribution

[tex]X      v_1       v_2      v_3\\Pr.    p_1       p_2     p_3\\[/tex]

Hence Expected value of x = average of x

=[tex]p1v1 + p2v2 + p3v3[/tex]

Thus answer is

Option b) The average amount you will win (or lose) per game in the long run.

Please help I’ll give brainliest

Answers

Answer:

  [tex]\dfrac{z_1}{z_2}=\dfrac{1}{2}\,\text{cis}\,\dfrac{7\pi}{12}[/tex]

Step-by-step explanation:

The quotient of complex numbers is the quotient of their magnitudes at the difference of their angles.

  [tex]\dfrac{z_1}{z_2}=\dfrac{\text{cis}\,\dfrac{2\pi}{3}}{2\,\text{cis}\,\dfrac{\pi}{12}}=\dfrac{1}{2}\,\text{cis}\left(\dfrac{2\pi}{3}-\dfrac{\pi}{12}\right)\\\\\bf{\dfrac{z_1}{z_2}=\dfrac{1}{2}\,\text{cis}\,\dfrac{7\pi}{12}}[/tex]

What is the distance between the 2 points? Round to the nearest tenths place.

Answers

Check the picture below.

Answer:

[tex]10.8 units[/tex]

Step-by-step explanation:

To find the answer, we need to use the distance formula.

[tex]d=\sqrt{(x-x)^2 +(y-y)^2}[/tex]

Let us look at our points. We have:

[tex](-2, 5)[/tex] and [tex](-6, -5)[/tex]

Now, let's identify our x's and y's:

x₁ = -2

y₁ = 5

x₂ = -6

y₂ = -5

Plug it in to the distance formula and simplify:

[tex]d=\sqrt{(-6+2)^2+(-5-5)^2}[/tex]

[tex]d=\sqrt{(-4)^2+(-10)^2}\\d=\sqrt{16 +100} \\d=\sqrt{116}\\[/tex]

[tex]d=2\sqrt{29}[/tex] OR [tex]10.77032961...[/tex]

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