What’s the answer ??

Answer:

B

Step-by-step explanation:

Based on the expected value, you should not buy the ticket. The expected value is a measure of the average outcome of an event when repeated over a large number of trials.

In this case, the expected value can be calculated by multiplying the probability of winning by the amount you would win and subtracting the cost of the ticket.

The probability of winning the jackpot is 1 in 10 million, which means that in each individual trial, the likelihood of winning is extremely low. The amount you would win is $1,000,000 if you do win, but the cost of the ticket is $1.00.

To calculate the expected value:

Expected value = (Probability of winning * Amount won) - Cost of ticket

= (1/10,000,000 * $1,000,000) - $1.00

= $0.10 - $1.00

= -$0.90

The expected value is negative, indicating that on average, you would expect to lose $0.90 for every ticket you buy. This means that if you were to play the lottery many times, you would likely lose money in the long run.

Therefore, based on the expected value, it is not a financially sound decision to buy the ticket.

While there is a small chance of winning a large sum of money, the cost outweighs the expected value, making it an unfavorable investment.

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Answer:

rvbtyhgttbyjgvttgtbrvt

it's D

The decimal representation of 511 is simply 511, and the other responses given do not represent the value of 511 in decimal form.

It is important to understand the different types of decimal representations and how to convert between them when necessary.

The decimal representation of a number is the representation of the number in the base-10 system using only the digits 0 to 9.

In the case of 511, it is already in decimal representation and does not require any further conversion.

The other responses given are not the decimal representation of 511.

2.2: This is the decimal representation of the fraction 11/5, which is not equivalent to 511.

0.045 with bar over 45: This is the decimal representation of the fraction 1/22, which is also not equivalent to 511.

2.2 with bar over 2: This represents a repeating decimal of the form 2.222..., which is not equivalent to 511.

0.45 with bar over 5: This represents a repeating decimal of the form 0.454545..., which is also not equivalent to 511.

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The resulting triangle is 9/5 the original triangle.

The focuses in the direction planes are A(0, 2), B(2, 1), C(- 2, - 2). In the event that the scale factor is 2, each direction point of the first triangle is duplicated by the scale factor 2. Subsequently, the expanded triangle will be A'B'C' and the direction focuses got are A'(0, 4), B'(4, 2), C'(- 4, - 4).

Let we have a triangle ABC,If this triangle undergoes a dilation with a scale factor of 9/5,

Then changed triangle is  A'B'C'

So, relation between them is A'B'C' = 9/5(ABC)

Thus, the resulting triangle is 9/5 multiple of triangle ABC.

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The speed of red light in a diamond, denoted as vred, is approximately equal to the speed of light in a vacuum, c, which is 2.998 × 10^8 m/s, rounded to four significant figures.

According to the principles of optics and the refractive index of a material, the speed of light in a medium is generally lower than its speed in a vacuum. The refractive index of a diamond is approximately 2.42.

To calculate the speed of red light in a diamond, we can use the formula vred = c / n, where c represents the speed of light in a vacuum and n represents the refractive index of the diamond.

Substituting the given values, we have vred = (2.998 × 10^8 m/s) / 2.42. Evaluating this expression yields a result of approximately 1.239 × 10^8 m/s.

Rounding this value to four significant figures, we obtain the speed of red light in a diamond, vred, as approximately 1.239 × 10^8 m/s.

Therefore, the speed of red light in a diamond, rounded to four significant figures, is approximately 1.239 × 10^8 m/s, which is slightly lower than the speed of light in a vacuum, c.

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Answer:

cbbbbb

Step-by-step explanation:

Answer:

0 = 9x - 9x

0 = 0

This means it has infinite number of solutions.

Step-by-step explanation:

Answer:

what can i help u with

Step-by-step explanation:

No; the relation passes the vertical-line test. Yes; only one range value exists for each domain value

Yes; two domain values exist for range

yes; only one range value exists for each domain.

The probability of NOT drawing a face card from a standard deck of 52 cards is 10 over 13.

First determine the total number of face cards and non-face cards in a standard deck of 52 cards.                                   In a standard deck, there are 12 face cards (3 face cards per suit: Jack, Queen, and King, and 4 suits: Hearts, Diamonds, Clubs, and Spades). This means there are 52 - 12 = 40 non-face cards.

Now, we'll calculate the probability of NOT drawing a face card:
Probability = (Number of favorable outcomes) / (Total number of outcomes)
Probability of NOT drawing a face card = (Number of non-face cards) / (Total number of cards)
Probability = 40 / 52

Simplify the fraction by dividing the numerator and denominator by their greatest common divisor (4):
Probability = (40/4) / (52/4)
Probability = 10 / 13

So, the probability of NOT drawing a face card from a standard deck of 52 cards is 10/13. Your answer: 10 over 13.

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Answer:

5 to 3 ratio

Step-by-step explanation:

Vadim has 18 books. The total books is 30.

30 to 18 simplified is 5 to 3.

Answer:

hiii my pic lol (✿^‿^)(✿^‿^)(✿^‿^)(✿^‿^)

Answer:

0 pounds

Step-by-step explanation:

Answer:

3. x=43

AM=98

MB=98

AB=196

4. x=22

AM=82

MB=82

AB=164

Step-by-step explanation:

Hope this helps you lol

-Scorpio (ur fwend)

Answer:

A. Segment AB congruent segment CD

C. Segment AD congruent segment BC

Step-by-step explanation:

These are both true because a characteristic of a rhombus is that all four sides are congruent. Therefore we must prove that AB is congruent to CD and AD is congruent to BC.

Step-by-step explanation:

there is the graph

D represents the hypothesis that the population mean (μ) is greater than or equal to 1000, while E represents the hypothesis that the population mean is less than 1000.

In hypothesis testing, D and E typically represent the null hypothesis (H0) and alternative hypothesis (Ha) respectively. The null hypothesis (D) assumes that the population mean (μ) is greater than or equal to 1000, while the alternative hypothesis (E) assumes that the population mean is less than 1000.

These hypotheses are used to make decisions about the population based on sample data. In this context, options (a) and (b) are not applicable as they refer to H(a) and H(0) which are not commonly used notations in hypothesis testing.

Option (c) is also incorrect as D and E do not represent Type I and Type II errors, which are associated with the decisions made based on the hypothesis test results.

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Answer:

£36

Step-by-step explanation:

From the question, we are told that School allots £3000 to spend on a trip to the theatre. With regular cost of tickets of £40 each with offer for 1/5 off

Then the cost of each ticket with 1/5 off= (4/5×40)= £32

From the question, A train ticket for the day will cost £20 each.

Then total cost for each of it = £32+£20

=£52

To determine how much money that the school will have left over, If 3 teachers and the maximum number of students attend, can be expressed below by first calculating the number of students.

Let us denote the number of students as "x"

52(x+3)= < 3000

52x + 156 =< 3000

52x =< 3000 - 156

52x =< 2844

X =< 2844/52

s =< 54.69,

The max. Number of students is 54

Total number of people= Number of students + the 3 teachers

= 54+3= 57

Total cost for 57 people= (£52 × 57 people)= £2964

The amount of money the school will have as left over = (£3000 - £2964)

= £36

A point estimate is the value of a statistic that estimates the value of a parameter. Question 2 is false and question 3 is true.

Question 1: A point estimate is the value of a statistic that estimates the value of a parameter.A point estimate is a single number that is used to estimate the value of an unknown parameter of a population, such as a population mean or proportion

Question 2: False

Mu (μ) is not used to estimate X. Mu represents the population mean, while X represents the sample mean. The sample mean, X, is used as an estimate of the population mean, μ.

Question 3: True

Beta (β) is indeed used to estimate the population proportion (p) when conducting hypothesis testing on a sample. Beta represents the probability of making a Type II error, which occurs when we fail to reject a null hypothesis that is actually false. By calculating the probability of a Type II error, we indirectly estimate the population proportion, p, under certain conditions and assumptions.

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Answer:

y=17x-55

Step-by-step explanation:

y=ax+b

y=17x+b

-4=17(3)+b

-4=51+b

-55=b

y=17x-55

Are 5,040 different possible settings for the suitcase lock if all four digits have to be different.

For the first dial, there are 10 possible digits (0 to 9) that can be set. For the second dial, there are 9 remaining digits to choose from (since we cannot repeat the digit from the first dial). For the third dial, there are 8 remaining digits to choose from (since we cannot repeat any of the digits from the first two dials). Finally, for the fourth dial, there are 7 remaining digits to choose from.

Therefore, the total number of possible settings for the suitcase lock with all four digits different is:

10 × 9 × 8 × 7 = 5,040

There are 5,040 different possible settings for the suitcase lock if all four digits have to be different.

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Explanation:

We have to multiply -4 by itself 3 times: (-4)³ = (-4)x(-4)x(-4)

The first time we'll have a positive number, because the product of two negative numbers is a positive number:

Now we just have to solve 16x(-4). The result will be a negative number, because the product between a positive and a negative number is negative:

Answer:

(-4)³ = -64

Bailey starts with an initial investment of 500 and the annual interest rate is 5%.

To answer this question, we need to understand the equation given to us:
= 500 (1.05)"

This equation models the growth of Bailey's Roth IRA over time. The initial investment is 500, and the interest rate is 1.05. T

he exponent, represented by the variable "n", represents the number of years that Bailey's Roth IRA has been invested.

a. How much does he start with?
From the equation given, we know that Bailey starts with an initial investment of 500.

b. What is the annual interest rate?
The annual interest rate is represented by the number 1.05. This means that for every year that Bailey's Roth IRA is invested, it will grow by 5% of its previous value.

In summary, Bailey starts with an initial investment of 500 and the annual interest rate is 5%.

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The prοbability that the prοpοrtiοn οf red marbles in the sample frοm bin a is greater than the prοpοrtiοn οf red marbles frοm bin b is 0.1573.

Prοbability is a way οf calculating hοw likely sοmething is tο happen. It is difficult tο prοvide a cοmplete predictiοn fοr many events. Using it, we can οnly fοrecast the prοbability, οr likelihοοd, οf an event οccurring. The prοbability might be between 0 and 1, where 0 denοtes an impοssibility and 1 denοtes a certainty.

Here by using probability calculator for sampling distribution of \(p_1-p_2\).

\(z=\frac{\hat p_1-\hat p_2}{\sqrt{\frac{p_1(1-p_1)}{n_1}+\frac{p_2(1-p_2)}{n_2}}}\)

Here \(\hat p_1=p_1\) = 40% = 0.40 and \(\hat {p_2}=p_2\) = 52% = 0.52 and \(n_1=0 , n_2=40\)

=> \(z=\frac{0.40-0.52}{\sqrt{\frac{0.40(1-0.40)}{0}+\frac{0.52(1-0.52)}{40}}}\)

=> z = -1.00561

Here \(\hat p_1 > \hat p_2\)

=> \(\hat p_1 - \hat p_2 > 0\)

Then , P(x<z) = 0.1573.

Hence  the prοbability that the prοpοrtiοn οf red marbles in the sample frοm bin a is greater than the prοpοrtiοn οf red marbles frοm bin b is 0.1573.

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Answer:

b^27

Step-by-step explanation:

Answer:

A. b^27

You multiply 9x3 and you get 27 with the base "b"

Step-by-step explanation:

According to combinations formula there are 495 possible committees that can be selected from a group of 12 people.

To calculate this, you can use the formula for combinations

nCr = n!/(r!(n-r)!)

where n is the total number of people (12) and r is the number of people on the committee.
Therefore, the possible number of committees that can be selected is;

= {12!}/{4!8!}
= 12*11*10*9/4*3*2*1

= 11880/24
= 495
Therefore, 495 possible committees can be selected from a group of 12 people if a committee of 4 is to be selected.

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Cassandra bought 24 shells.

What does a unit value mean?

The unit value is typically the result of dividing the price or worth of a set of things by the total number of items.

Given that, Cassandra bought some shells at a rate of $14 for every 8 shells. Then sold them at a rate of $15 for every 6 shells.

Let Cassandra buy 8x shells

It would cost her $14x.

And she sold those 8x shells.

The total amount she'd get from selling them is $15*8x/6

=$20x

Therefore the total profit gained is 20x-14x = $6x

Which was given in the question $18.

Now, $6x=$18

x=3.

Therefore the number of shells Cassandra bought is 8*3 =24.

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