The Martians are trying to destroy Earth by launching an anti-matter rocket (it will be disastrous it will hit earth). In response, Earth launches 500 missiles towards the rocket. Each missile will hit the rocket with probability 0.01, independently of other missiles. What is the probability that Earth will be saved, if at least 3 missiles must hit the rocket in order to destroy it before it hits Earth

Answers

Answer 1

Answer:

The probability the earth is saved is \(P(X >  3) = 0.8753 \)

Step-by-step explanation:

From the question we are told that  

   The number of missiles lunched by earth is n =  500

   The probability that each missile will hit the rocket is  p(x) =  0.01

   

Generally the expected number of  missiles that will hit the rocket is  

    \( \lambda =  n  *  p(x)\)

    \(\lambda =  500  *  0.01 \)

    \(\lambda =  5\)

Gnerally the probability that Earth will be saved is mathematically represented as

      \(P(X >  3) =  1 - P(X \le 2)\)

=>    \(P(X >  3) =  1 -  P( X = 0 ) + P(X =1 ) + P( X = 2) \)

Gnerally the probability distribution function of a Poisson distribution is

      \(P(K) =  \frac{e^{- \lambda t } *  (\lambda *  t)^k}{k!}\)

Here t =  1

Hence

      \(P( X = 0 ) =  \frac{e^{-5} *  5^0 }{0!}\)

      \(P(X =1 ) =\frac{e^{-5} *  5^1 }{1!}\)

     \(P( X = 2) = \frac{e^{-5} *  5^2 }{2!}\)

 \(P(X >  3) =  1 - [ \frac{e^{-5} *  5^0 }{0!} + \frac{e^{-5} *  5^1 }{1!} +  \frac{e^{-5} *  5^2 }{2!}]\)

\(P(X >  3)= 1 - [ \frac{0.00673 }{1} + \frac{0.033689}{1} +  \frac{0.168449 }{2}]\)

\(P(X >  3) = 0.8753 \)


Related Questions

What is the answer?

What is the answer?

Answers

Answer:

C

Step-by-step explanation:

Volume = 0.5 * Base * Height * Length

You have to multiply by 0.5 because it is a Triangular prism

base(b) = 4.1

Height (h) = 7.2

Length (l) = 3.5

Plug in the numbers to the equation below and you get 51.66

Hope this Helps! :)

A Collection of books consists of six Math books and four English books. A book is chosen at random from the collection. Finc the probability of choosing: a) a Maths book b) an English book c) either a maths or an English book d) neither a maths nor an English book.

Answers

Answer:

A. 60%

B. 40%

C. Math because Math has higher chance of being chosen.

D. 0%

Does every number have a decimal expansion?

yes or no

Answers

I’m pretty sure the answer is no

Please help me with this question

Please help me with this question

Answers

Answer:

8 cm

Step-by-step explanation:

V = 1/3 (Base Area) × h

216cm³ = 1/3(81cm²) × h

216cm³ = 27cm² × h

÷ 27cm   ÷ 27cm

8 cm = h

I hope this helps!

Itiple Choice Worth 2 points)
(Pythagorean Theorem and the Coordinate Plane MC)
Determine the length of the line segment shown.

Itiple Choice Worth 2 points)(Pythagorean Theorem and the Coordinate Plane MC)Determine the length of

Answers

On solving the provided question, we can say that -the  given graph is a starlight lined .

What is graphs?

Graphs are visual representations or charts used in mathematics to methodically express data or values. A relationship between two or more objects is frequently represented by a point on a graph. A non-linear data structure called a graph is made up of nodes, or vertices, and edges. Connect the nodes, also known as vertices. This graph comprises a set of vertices V= 1, 2, 3, 5, and a set of edges E= 1, 2, 1, 3, 2, 4, and (2.5), (3.5), (4.5). Statistics graphs (bar charts, pie charts, line charts, etc.) Exponential diagrams. triangle graph, a logarithmic graph

here,

in the graphs we have been given a straight line,

so its a straight line graphs

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I need help on this please

I need help on this please

Answers

Answer:

Step-by-step explanation:

x and x are both equal because the two angles opposite them are equal (both angles are 45  degrees).

In addition, the third angle is 90 degrees. You can use the Pythagorean Theorem.

x^2 +x^2 = 12^2

2x^2 = 144                         Divide by 2

x^2 = 144/2

x^2 = 72                            Factor 72 using prime factors.

x^2= 2*2*2 * 3*3

Every pair of equal factors contributes 1 factor to the question mark outside the root sign. The other factor is thrown away.

sqrt(x^2) = 2 * 3 *  sqrt 2  a single  two is left under the root sigen

x =6 sqrt(2)

 

{ (-2, 4), (0, 2), (-1, 3), (4, -2)}
The set of ordered pairs above:
DONE
Domain
-3
4
-1
5
Range
3
7
-2
The mapping diagram above:
DONE
y=x²
DONE
x
-3
-1
y
5
2
-1
The table above:
DONE ✔

{ (-2, 4), (0, 2), (-1, 3), (4, -2)}The set of ordered pairs above:DONEDomain-34-15Range37-2The mapping

Answers

The set of ordered pairs above: is a function.

The mapping diagram above: is a function.

y = x²: is a function.

The table above: is not a function.

What is a function?

In Mathematics and Geometry, a function is a mathematical equation which is typically used for defining and representing the relationship that exists between two or more variables such as an ordered pair.

Based on the set of ordered pairs, mapping diagram, and the equation above, we can reasonably infer and logically deduce that it represent a function because the input values (domain, x-value, or independent values) are uniquely mapped to the output values (range, y-value or dependent values).

In this context, we can reasonably infer and logically deduce that the table does not represent a function because the input value (-1) has more than output values (2 and 4 respectively).

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Help I need the answer
Fast

Help I need the answer Fast

Answers

Answer: 4

Step-by-step explanation: because he needs to divided by 2

A health club charges a one-time sign-up fee and a monthly membership fee. The
equation y = 28x + 50 represents what the health club charges. Find the rate of
change.

Answers

Answer:

The rate of change is 28.

Step-by-step explanation:

The equation is in slope-intercept form,  y = mx + b, where m is the slope, and b is the y-intercept.


Helppp pleasee!!


In your own words, write a definition for sales tax.

2) If you buy a meal from a restaurant that costs $15.00, and the tax is 7%, how much do you pay in taxes? ​

- Explain in detail, the steps you would take to solve this sales tax question. ​

Answers

The value of the tax for the meal is $1.05.

What Is a Sales Tax?

The government levies a consumption tax known as a sales tax on the purchase of goods and services. At the point of sale, a standard sales tax is imposed, collected by the shop, and paid to the government.

Depending on the regulations in that country, a business may be responsible for sales taxes in that jurisdiction if it has a presence there, which can be a physical site, an employee, or an associate.

Given the  cost of the meal = $15.00

and rate of tax = 7%

converting the rate of tax into decimal form,

rate of tax = 7% = 7/100

rate of tax = 0.07

amount of tax = cost x rate of tax

amount of tax = 15 x 0.07

amount of tax = $1.05

Hence the amount of tax is $1.05.

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store A charges 12.50 for a custom shirt with 0.40 per each custom character store b charges 14.75 for the same shirt but charges 0.25 per each custom characyer would make the cost from both stores the same

Answers

Answer:

15 shirts

Step-by-step explanation:

Store A charges 12.50 for a custom shirt with 0.40 per each custom character. Store B charges 14.75 for the same shirt but charges 0.25 per each custom character would make the cost from both stores the same

A: 12.5 + 0.40x

B: 14.75 + 0.25x

12.5 + 0.40x = 14.75 + 0.25x

subtract 12.5 from both sides:

12.5 + 0.40x - 12.5 = 14.75 + 0.25x - 12.5

0.40x = 2.25 + 0.25x

subtract 0.25x from both sides:

0.40x - 0.25x = 2.25 + 0.25x - 0.25x

0.15x = 2.25

divide both sides by 0.15:

0.15x/0.15 = 2.25/0.15

x = 15

Find the domain of the graphed Function

A. X is all real numbers
B. -4 C. -4 D.X>-4

Find the domain of the graphed Function A. X is all real numbersB. -4C. -4D.X>-4

Answers

Domain =
[4,9]

option B is the domain of the figure

What is 140% of a dollar

Answers

Answer:

1.4 U.S. Dollar

Step-by-step explanation:

At Imelda's fruit stand, you bought 5 apples and 4 oranges for $10 dollar sign, 10, and your friend bought 5 apples and 5 oranges for $11dollar sign, 11.
Using this information, is it possible to determine the cost of one apple and one orange from the fruit stand? If so, what do they cost? If not, why not?

Answers

Answer:

Step-by-step explanation:

we have

5apples+4 oranges=10

5apples+5oranges=11

from here we can say

5a=10-4 oranges

replace in the second equation

10-4 oranges+5oranges=11

1 orange=1 dollar

that means that 5apples =6 dollars

1apple=1.20 dollars

Stephen is combining all juice shown to make fruit punch. Does the expression (64+28+76)/6 make sense’s

Answers

Yes, the expression (64+28+76)/6 makes sense as it represents the average quantity of juice per unit when combining all the shown juices.

To determine whether the expression (64+28+76)/6 makes sense, we need to evaluate the components of the expression and consider whether the mathematical operations are valid.

The expression (64+28+76)/6 represents the sum of three numbers (64, 28, and 76), divided by 6. Let's break it down step by step:

Addition: We have three numbers being added together: 64, 28, and 76. The sum of these numbers is 168 (64 + 28 + 76 = 168).

Division: The sum of the three numbers, 168, is then divided by 6. Division is a valid mathematical operation.

Now, let's analyze whether the expression makes sense in the context of Stephen combining all the juice to make fruit punch. The numbers 64, 28, and 76 may represent quantities of juice (in some units) that Stephen is combining. However, without further information or context, we cannot determine if the expression accurately represents the combination of these juices.

If the numbers 64, 28, and 76 represent quantities of juice in the same units (such as milliliters or liters), then the expression (64+28+76)/6 would represent the average quantity of juice per unit. The result, 168/6, would be 28. This would imply that each unit (e.g., glass or serving) of the fruit punch contains an average of 28 units of juice.

In summary, mathematically, the expression (64+28+76)/6 is valid. However, without additional context regarding the units or quantities being represented, it is not possible to determine whether the expression accurately describes the process of combining the juices to make fruit punch.

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5 pounds of strawberries cost $3.75.
How much per pound?

Answers

The strawberries cost $0.75 or 75¢ per pound

Answer:

$0.75

Step-by-step explanation:

Step 1:

5 ibs for $3.75    Given

Step 2:

$3.75 ÷ 5     Divide

Answer:

$0.75

Hope This Helps :)

Use synthetic division to divide:

(2x^4+5x^3-3x^2-x+1) / (x+2)

Answers

Answer:

\(2x^3 +x^2 -5x+9 -\frac{17}{x+2}\)

Step-by-step explanation:

See picture for explanation

Use synthetic division to divide:(2x^4+5x^3-3x^2-x+1) / (x+2)

please help me with my online classwork!

please help me with my online classwork!

Answers

Answer:

840 cm²

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

There are two triangular faces with base of 16 cm and height of 15 cm and three rectangular faces.

Find the sum of areas of all five faces:

S = 2*(1/2)*16*15 + (17*2 + 16)*12 =      240 + 600 =      840

I need help I have been stuck on this for a while

I need help I have been stuck on this for a while

Answers

a) The account with the largest balance is D. Rent A Truck which is $165.

b) The open account is D. Rent A Truck.

c) Since it takes seven years for negative credit history to be removed from a person's credit report, the year that the late payment at Rent A Truck will be removed is 2016, specifically by the end of February 2016.

What is a credit report?

A credit report records the borrower's credit history from various sources, including banks, credit card companies, collection agencies, and governments prepared by the following credit reporting bureaus: Equifax, Experian, and TransUnion.

What is an open account?

An open account refers to a credit that has not been fully discharged.

Unlike a closed account, the open account remains operational, with debit and credit transactions recorded, including finance charges and credit reports issued from it.

Thus, based on the facts supplied, Rent A Truck is the only open account because the other three have been closed.

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What is x
135=-1+45x

Answers

Answer:

X = 3.02

Step-by-step explanation:

Answer:

x= 3.02

Step-by-step explanation:

135 = -1 + 45x

+1        +1

136/45= 45x/45

x = 3.02

Sebastian observed the number of minutes his dormmates spent on social media sites while they were at the library. he reported his data in the following list.
13, 0 , 14 , 36, 18, 9
Find the mean absolute deviation (mad) of the data set. ___ minutes

Answers

The mean absolute deviation (MAD) of the data set is equal to 180.625.

The mean absolute deviation of a data set is to find the average distance of each observation of the data set and the mean of the data set.

Mean absolute deviation = 1/n ∑ absolute value of (xi - x bar)

x bar =average value of the given data set

n= total number of data set

xi = data value in a given set

According to the question,

x bar = sum of all the data set / total number of the data set

x bar = 2052/16 = 128.25

Substitute the value in the formula, we have

Mean absolute deviation = 2890/16 = 180.625

Hence, the Mean absolute deviation of the data set is equal to 180.625.

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As per the given data, the Mean absolute deviation (MAD) of the data set is equals to 17.5

The term Mean absolute deviation in math is defined as the average distance of each observation of data set  and the mean of the data set.

Here we have given the following data.

=> 13, 0 , 14 , 36, 18, 9

Then the mean of the data is calculated as,

=> (13 + 0 + 14 + 36 + 18 + 9)/6

=> 90/6

=> 15

Now, we have to the Substitute the value in the formula, we have

And then the Mean absolute deviation is calculated as,

=> (90 + 15)/6

=> 105/6

=> 17.5

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If x = 7 units and h = 4 units, then what is the area of the triangle shown above?
A.
28 square units
B.
42 square units
C.
14 square units
D.
8 square units

If x = 7 units and h = 4 units, then what is the area of the triangle shown above? A. 28 square units

Answers

Here's link to the answer:

tinyurl.com/wpazsebu

PLEASE HELP!!!!!!!!!!!!!!!!!!! I'll NAME BRAINLIEST!!!!!!!!!!!!!!!!!A moving-van rental company uses the polynomial 110 + 0.65(m – 200) to calculate the rental charges if a customer drives a van more than 200 miles in one day. In the polynomial, m is the total number of miles that the customer drove the van during the day. Use the Distributive Property to write an equivalent expression for the total cost of renting the van and driving it more than 200 miles in one day.

Answers

Answer:I think it would be 84 + 0.45m + 108.

Which simplified could be 0.45m + 192.

hope this helps!

Step-by-step explanation:

Help if you please! thanks!

Help if you please! thanks!

Answers

Answer:

Step-by-step explanation:

find the quotient 1377÷8

Answers

Answer:  172 \(\frac{1}{8}\)

Step-by-step explanation:

Answer:

172 I hope this help

Question 2
No calculations are necessary to answer this question.
3/01
3/02
$1.7420 $1.7360
Date
July GBP Futures
Contract Price
O long; long
Based on the closing prices of July GBP Futures Contract over the 3-day period in March 20XX as shown above, you shou
position on 3/01 and a position on 3/02.
O long; short
O short; short
3/03
short; long
$1.7390

Answers

The given information does not provide any clear indication for determining the position that should be taken on 3/01 and 3/02. Without additional information, it is not possible to make a decision. The table only displays the closing prices of the July GBP Futures Contract on different days, and it is unclear what trading strategy or what scenario is being considered. Additional information about the goals and objectives, the market conditions, and other relevant factors would be necessary to make a decision about trading positions.

Show that if f is a function from S to T, where S and T are finite sets with |S| > |T|, then there are elements s1 and s2 in S such that f(s1) = f(s2), or in other words, f is not one-to-one.

Answers

Hence proved  f is not one-to-one.

What do you mean by function?

A function is a mathematical concept that assigns a unique output value for each input value.

In mathematical notation, a function is usually expressed as "f(x)" where "x" is the input and "f(x)" is the corresponding output. For example, a function could be defined as f(x) = x^2, which means that for any value of x, the function will calculate and return the square of that value.

Functions play a central role in mathematics and are used to model real-world phenomena and to study the relationships between variables. They are also used in computer programming to perform specific tasks, such as converting temperatures from Celsius to Fahrenheit or calculating the square root of a number.

Suppose that f is a function from S to T, where |S| > |T|. This means that there are more elements in S than there are in T.

Since f maps elements of S to elements of T, we can think of f as pairing elements of S with elements of T. However, since |S| > |T|, there will be at least two elements of S that are paired with the same element of T, and these two elements are s1 and s2.

Therefore, f is not one-to-one, as f(s1) = f(s2), meaning that two different elements of S are mapped to the same element of T.

This shows that if f is a function from S to T, where |S| > |T|, then there must exist elements s1 and s2 in S such that f(s1) = f(s2), and hence f is not one-to-one.

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-2x + 12 = -2(x – 6)

Answers

Answer:

true for all x

Step-by-step explanation:

-2x + 12 = -2(x – 6)

Distribute

-2x+12 = -2x+12

Add 2x to each side

12 =12

Since this is always true, there are infinite solutions

x is all real numbers

Simplify the expression. 6(x+4)+I

Answers

Answer:

6x + 25

Step-by-step explanation

Distribute 6 through the parenthesis

Then add 24 and 1 to get 25

then you end up with 6x + 25

Answer:

6x+25

Step-by-step explanation:

6x+24+1 first distribute 6 into (x+4)

then add all your constants 24+1

then u get 6x+25,ur answer

he entire graph of the function is shown in the figure below.
Write the domain and range of using interval notation.
Someone please help me. I really nee help. this question is due tonight before 8 and im stuck.

he entire graph of the function is shown in the figure below.Write the domain and range of using interval

Answers

The given graph shows that the function is periodic and fluctuates between y = -2 and y = 2. So, the range of the function is [-2,2].

The graph covers one period, which is from x = -3 to x = 3, and then repeats itself indefinitely in both directions. So, the domain of the function is (-∞, ∞).

In general, the domain of a function consists of all the possible input values that the function can take. In this case, since the function repeats itself indefinitely, it can take any input value from negative infinity to positive infinity.

So, the domain is (-∞, ∞). The range of a function, on the other hand, consists of all the possible output values that the function can produce.

In this case, the function oscillates between y = -2 and y = 2, so the range is [-2,2]. The interval notation for the domain is (-∞, ∞) and for the range is [-2,2].

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48 inches by 36 inches what is the square feet Write the sentence as an equation.26 is 335 plus the product of 263 and p sensitive instructions are defined as a. a set of instructions that behave differently when executed in kernel mode than when executed in user mode. b. a set of instructions that cause a trap if executed in user mode. c. a set of instructions that can only be executed in the type 1 hypervisors. d. a set of instructions that can only be executed in the type 2 hypervisors. A person who has developed an eating pattern of consuming large amounts of food in a short period and abusing substances such as laxatives and diet pills in an effort to prevent weight gain could be diagnosed with which eating disorder 1. John is currently watching 9 different television shows.a) If John watches one episode of each of these shows, how many orders of shows can he watch?b) If John wants to download 5 random episodes of these 9 shows, how many combinations exist? (He only downloads 1 episode from any given show.)c) Out of a group of 12 students competing on the Gymnastics team, how many different ways can a captain, equipment manager, and sound manager be selected at random if no person can hold two positions Give the number of significant figures in the following measurement 1278.50 Help me please How did Mansa Musa's pilgrimage impact the settlement and/or exploration of the Americas? Blah Blah is from what mvie? A $10,800, 60-day, 12% note recorded on November 21 is not paid by the maker at maturity. The journal entry to recognize this event is a. debit Notes Receivable, $11,016; credit Accounts Receivable, $11,016. b. debit Cash, $11,016; credit Notes Receivable, $11,016. c. debit Notes Receivable, $11,016; credit Accounts Receivable, $10,800; Credit Interest Receivable, $216. d. debit Accounts Receivable, $11,016; credit Notes Receivable, $10,800; Credit Interest Revenue, $216. Ideal Otto air begins a compression stroke at P 90kpa and T 35 degrees Celcius. Peak T, is 1720 degrees Celcius. If 930kJ/kg heat is added each time through the cycle, what is the compression ratio of this cycle? A barber Wants to set up a salon in a measuring Length of 3m by 3m. He has a simple Woden Chair, 3 large mirror and one bulb. a) using the knowledge of shadows and reflection, advice the barber on how to arrange a good salon using the unly items he has. b) without acking more sources of light, how can he enhance the lighting System in his salon? S A barber Wants to set up a salon in a measuring Length of 3m by 3m . He has a simple Woden Chair , 3 large mirror and one bulb . a ) using the knowledge of shadows and reflection , advice the barber on how to arrange a good salon using the unly items he has . b ) without acking more sources of light , how can he enhance the lighting System in his salon ? What are some similarities and differences between Ancient Rome and Ancient Greek what is rounded 6285 to the nearest hundred , would it be 6000? and why please Find the x & y-intercepts for each of the functions. F(x)=2(x-1) (x+2) (x-3) A company prints an advertisements containing an unauthorized picture of a famous movie star could be sued by the actress for the tort of A runner can run 3miles in 15 minutes. At this rate, how many miles can he run in 45minutes? What are the characteristics of the Global Competition ? How itaffects the world as a whole? the project team stage of development when the team becomes a cohesive unit and interdependence, trust, and cooperation develops between team members is The title of the novel is Chains, yet Isabel is seemingly very independent and outspoken. How does her personality seem to clash with the title of the novel? Why do you think the author would title the book Chains, but develop Isabel to have such a powerful personality?