Need the answer to this please

We could expect $30.00 to gain after 20 tosses.

Probability is defined as the ratio of the number of favourable outcomes to the total number of outcomes in other words the probability is the number that shows the happening of the event.

Probability = Number of favourable outcomes / Number of sample

The probability of all the events occurring need to be 1.

if the toss of a coin comes down heads, you win a dollar. if it comes down tails, you lose fifty cents.

We need to find out How much would you expect to gain after 20 tosses (in $ dollars).

Because if you think about it, you will see that about half of them are going to be heads and the other half are going to be tails.

Therefore, We could expect $30.00 to gain after 20 tosses.

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The diver take her at a distance of 9.2 meters.

A resultant displacement can be used to quantify distance. It involves measuring the coordinate values of the beginning and ending positions. The distance is measured in quantities like meters, centimeters, kilometers, etc.

A diver descends 1.7 meters below the surface of the water while suspended 7.5 meters above it, according to the question.

According to fundamental mathematics, values that are less than zero can be represented as negative values.

She will thus descend (-1.7) meters as she dives below the surface.

The formula may now be expressed as follows: Total Distance = 7.5 - (-1.7) = 9.2 meters.

As a result, the diver descends 9.2 meters below the surface with her.

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Answer:

What the difference between an expression and an equation?

Image result for This equation shows how the total pages of notes in Jessica's notebook depends on the number of hours she spends in class.p = 4 The variable h represents the hours she spends in class, and the variable p represents the total pages of notes taken. After attending 1 hour of class, how many total pages of notes will Jessica have in her notebook?

An expression is a mathematical phrase that contains numbers, variables, or both. Expressions never have an equal sign. Here are some examples of expressions. An equation is a mathematical sentence that says two expressions are equal.

Step-by-step explanation:

Answer:

y=-8x-6, y=-4x, y=-2x+3, x=6

Step-by-step explanation:

y=mx+b

use that formula to make you're equations but remember m represents slope and b what is going up by

       For us to write the equation for this line, we need to (1) find the slope of the line, and (2) use one of the points to write an equation:  

       The question gives us two points (one of which is the y-intercept), (4.5,-4.25), and (0, 2.5), from which we can find the slope and later the equation of the line.

Finding the Slope    

The slope of the line (m) = (y₂ - y₁) ÷ (x₂ - x₁)    

                                        =  (2.5 - (- 4.25)) ÷ (0 - 4.5)

                                        =  −1.5

 Finding the Equation

Now that we know the slope and the y-intercept, we can write the equation of the line in the point-slope form (y = mx + b)

                                            y = −1.5x + 2.5

Checking my answer:

I used Desmos to graph the line I got and the points. Since the line passes through the points then the line is correct.

Answer:

40% of 10

Step-by-step explanation:

I believe the answer would be 40% of 10.

Hope this helps, if so please mark the brainliest, peace and love

Answer:

50%

Step-by-step explanation:

The more it was showed so its like 50%.

Answer:

D  5sqrt(3)

Step-by-step explanation:

We can use the Pythagorean theorem to solve since the altitude is perpendicular to the base

a^2+b^2 = c^2

5^2 + a^2 = 10^2

25+a^2 = 100

a^2 =100-25

a^2 = 75

Taking the square root of each side

a = sqrt(75)

a = sqrt(25)sqrt(3)

a = 5sqrt(3)

Answer:

Step-by-step explanation:

D

Answer:

The answer is x=12

Step-by-step explanation:

2*12= 24-4 = 20/5=4

the answer is x=12

The length of the straight line AB, given points A(15, 10) and B(60, 70), is 75 units and the coordinates of the point of intersection between EF and GH are (4, 4).

Given that point A has coordinates (15, 10) and point B has coordinates (60, 70), the distance between these two points (AB) can be calculated as follows:

AB = √[(x2 - x1)^2 + (y2 - y1)^2]

where (x1, y1) and (x2, y2) are the coordinates of points A and B, respectively.

Substituting the values into the formula:

AB = √[(60 - 15)² + (70 - 10)²]

Simplifying:

AB = √[45² + 60²]

AB = √[2025 + 3600]

AB = √5625

AB = 75

7. To determine the point of intersection between lines EF and GH, we need to set the equations of the two lines equal to each other and solve for the x and y coordinates.

Given:

Line EF: y = 2x - 4

Line GH: y = x

Setting the equations equal to each other:

2x - 4 = x

Simplifying:

x = 4

Substituting the value of x back into either equation, we can solve for y:

y = 4 (since y = x)

Therefore, the coordinates of the point of intersection between EF and GH are (4, 4).

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The arc length that Michael traveled is simply the radian measure multiplied by the radius, which is 30: 1.8832.30 = 56.496 feet.

The point (-9.22, -28.548) is indeed a point on the circle with center (0,0) and radius 30; so the given information is valid.

The reference angle for that point on the circle, measured to the "negative y axis" -- i.e., to the 9 o'clock position -- has a sine of 28.548/30 and a cosine of 9.22/30.

Using either inverse function shows the reference angle is 1.2584 radians.

The angle through which Michael travels in radians is π-1.2584 = 1.8832.

That is the answer to part (a): 1.8832 radians.

The arc length that Michael traveled is simply the radian measure multiplied by the radius, which is 30: 1.8832.30 = 56.496 feet.

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Answer:

  see attached

Step-by-step explanation:

You want the graph of f(t) = -150t^2 + 120t with intercepts, vertex, axes, and f(2) marked.

The graph is shown in the attachment.

__

Additional comment

The equation factors as ...

  f(t) = -30t(5t -4)

The zeros are values of x that make the factors zero: x=0, x=4/5. The vertex is halftway between, at x = 2/5. The value of the function there is ...

  f(2/5) = -30(2/5)(5(2/5) -4) = (-60/5)(-2) = 24 . . . . . y-value of vertex

The value of the function at x=2 is found as ...

  f(2) = -30(2)(5·2 -4) = -60(6) = -360

the average processing time.1/7 = 0.1428The thorough put is equal to 0.1428 which is equivalent to 1 unit produced every 7 minutes. Therefore, the correct option is 18.

Thorough put is the amount of goods or services that are produced by a system, unit, or organization over a period.

To calculate thorough put, one must divide the total quantity of output by the time taken to generate the output.

Let's see the given problem below: A work system has five separate stations that have process times of \( 5,9,4,9 \), and 8 .

What is the thorough put? To begin with, we'll need to calculate the total processing time.

The processing times are: 5, 9, 4, 9, and 8. Summing these values up, we get 35.

Next, we'll divide the total processing time by the number of stations to get the average processing time.35 / 5 = 7

Finally, we will calculate the throughput as the reciprocal of the average processing time.1/7 = 0.1428The thorough put is equal to 0.1428 which is equivalent to 1 unit produced every 7 minutes. Therefore, the correct option is 18.

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Answer: What are the two triangles' names? For example, if they are Triangle ABC and DEF, the congruence statement would be "ΔABC ≅ ΔDEF".

Step-by-step explanation: I explained it above.

Answer:

2,889,124,530

Answer:

No

Step-by-step explanation:

because (-2)^2 is 4 and -2^2 is -4

This is true, we can verify that the equation n(A∪B)=n(A)+n(B) holds for the given disjoint sets A={a,e,i,o,u} and B={g,h,k,l,m}.

Since A and B are disjoint sets, meaning they have no common elements, we can say that A∩B=∅. Therefore, the equation n(A∪B)=n(A)+n(B) becomes:
n({a,e,i,o,u,g,h,k,l,m}) = n({a,e,i,o,u}) + n({g,h,k,l,m})
Counting the elements, we see that n({a,e,i,o,u,g,h,k,l,m})=10, n({a,e,i,o,u})=5, and n({g,h,k,l,m})=5.
Substituting these values back into the equation, we get:
10 = 5 + 5
Hi! To verify the equation n(A∪B) = n(A) + n(B) for the given disjoint sets A = {a, e, i, o, u} and B = {g, h, k, l, m}, we first need to find the union of sets A and B.
Since A and B are disjoint (meaning they have no elements in common), the union of A and B, denoted as A∪B, simply combines the elements of both sets. So, A∪B = {a, e, i, o, u, g, h, k, l, m}.
Now, let's find the number of elements (n) in each set:
n(A) = 5 (as there are 5 elements in set A)
n(B) = 5 (as there are 5 elements in set B)
n(A∪B) = 10 (as there are 10 elements in the union of A and B)
Now, we can verify the equation:
n(A∪B) = n(A) + n(B)
10 = 5 + 5

The equation holds true for the given disjoint sets A and B.

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The probability of a penny, dime, and quarter all landing on tails, given that the quarter and the penny landed on tails, can be determined using conditional probability.

To find the probability, we need to consider the individual probabilities of each event. The probability of the quarter landing on tails is 1/2, as there are two equally likely outcomes (heads or tails). Similarly, the probability of the penny landing on tails is also 1/2.

Now, since these two events are independent, we can multiply their probabilities to find the probability of both the quarter and the penny landing on tails: (1/2) * (1/2) = 1/4.

However, the dime's outcome is not known. Assuming that the dime's landing is independent of the other two coins, the probability of the dime landing on tails is also 1/2.

Therefore, if the quarter and the penny have already landed on tails, and we are considering the dime separately, the probability of all three coins (penny, dime, and quarter) landing on tails is (1/4) * (1/2) = 1/8.

In summary, the probability of a penny, dime, and quarter all landing on tails, given that the quarter and the penny landed on tails, is 1/8.

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Answer:

Step-by-step explanation:

Since, sum of central angles of a circle = 360°

Therefore, sum of all central angles formed by each math class = 360°

And measure of angles formed by each class will be in the same proportion as the percentage of seniors in each class.

Geometry → 27% of 360° = 97.2°

Precalculus → 4% of 360° = 14.4°

Advanced algebra → 33% of 360° = 118.8°

Consumer math → 36% of 360° = 129.6°

Answer:

There are 360 degrees in a circle so I need to do the percentage of 360

Geometry: 27% of 360 = 97.2 °

Consumer Math: 36% of 360 = 129.6 °

Advanced Algebra: 33% of 360 = 118.8 °

Precalculus: 4% of 360 = 14.4 °  

Answer:

588 cm

Step-by-step explanation:

An event that is defined as impossible has a probability of zero. However, it is important to note that an event with an empirically approximated probability of zero does not necessarily mean it is impossible.

Empirical results are based on observations and data, which may be limited in scope or subject to measurement errors. Therefore, a probability approximation of zero based on empirical results does not provide absolute certainty that the event is impossible.

In probability theory, an event that is classified as impossible is one that has a probability of zero. This means that the event cannot occur under any circumstances. For example, if you roll a fair six-sided die and the event is defined as rolling a seven, which is not possible, then the probability of rolling a seven is zero.

On the other hand, when empirical results are used to approximate probabilities, it is crucial to consider the limitations of the data and the possibility of measurement errors. If an event has been observed to have a probability of zero based on empirical data, it means that it has not been observed to occur within the scope of the data collected.

However, it does not definitively prove that the event is impossible. There might be factors or conditions beyond the scope of the data that could lead to the occurrence of the event. Therefore, while an empirical approximation of zero probability suggests extreme unlikelihood, it does not guarantee that the event is impossible.

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Answer:

Each one of the little squares is called a unit. they count in a line how many units are on the base. they did the same upward for the height

Step-by-step explanation:

An equation for the fish population, after years is P(t) ≈ 8000e-0.664t ± 0.00005

The equation for the fish population in a stocked lake can be determined using exponential growth.

The formula for exponential growth is

P(t) = \(P_0\)ert

where P(t) is the population after time t,

\(P_0\) is the initial population,

r is the rate of growth, and

e is the mathematical constant approximately equal to 2.71828.

The carrying capacity, K, is the maximum population that can be supported by the environment, and it is a limiting factor for population growth. When the population reaches K, the growth rate slows down until it reaches a point of equilibrium.

The carrying capacity can be estimated using a variety of methods, including the logistic model, which incorporates the carrying capacity into the equation for population growth.

However, for this problem, we are given an estimate of the carrying capacity, which we will use in the exponential growth equation.

We are also given the initial population,

\(P_0\) = 1100, and we are asked to find an equation for the fish population, P(t), after t years.

The rate of growth, r, can be determined using the following formula:

r = ln(P/K) / t

where ln is the natural logarithm, and t is the time it takes to reach the carrying capacity, K.

Since we don't have an exact value for K, we will use the estimated value of 8000.

Thus,

r = ln(1100/8000) / 1

r ≈ -0.664

The negative sign indicates that the population is decreasing, since the growth rate is negative.

Therefore, the equation for the fish population after t years is:

P(t) = 8000e-0.664t

To round to 4 decimal places, we can use the formula:

P(t) ≈ 8000e-0.664t ± 0.00005

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Answer: 2400000

You can think of this as 6 x 4 = 24 then because there are 5 zeros in the equation you just have to add 5 zeros to the end!

I hope this helped!

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- Zack Slocum

*☆*――*☆*――*☆*――*☆*――*☆*――*☆*――*☆*――*☆**☆*――*☆*――*☆*――*☆

The probabilities directly from the cumulative distribution function is

(a) P(X = 2) = 0.22

(b) P(X > 3) = 0.11

(c) P(2 ≤ X ≤ 5) = 0.42

(d) P(2 < X ≤ 5) = 0.64

The probabilities directly from the cumulative distribution function (CDF) provided, we can use the following information:

F(x) = 0 for x < 0

F(x) = 0.05 for 0 ≤ x < 1

F(x) = 0.31 for 1 ≤ x < 2

F(x) = 0.53 for 2 ≤ x < 3

F(x) = 0.89 for 3 ≤ x < 4

F(x) = 0.95 for 4 ≤ x < 5

F(x) = 1 for x ≥ 6

Now let's calculate the probabilities:

(a) P(X = 2) can be calculated as the difference in cumulative probabilities between 2 and the previous value (1):

P(X = 2) = F(2) - F(1) = 0.53 - 0.31 = 0.22

(b) P(X > 3) can be calculated as 1 minus the cumulative probability up to 3:

P(X > 3) = 1 - F(3) = 1 - 0.89 = 0.11

(c) P(2 ≤ X ≤ 5) can be calculated as the difference in cumulative probabilities between 5 and 2:

P(2 ≤ X ≤ 5) = F(5) - F(2) = 0.95 - 0.53 = 0.42

(d) P(2 < X ≤ 5) can be calculated as the difference in cumulative probabilities between 5 and 2, excluding the probability at 2:

P(2 < X ≤ 5) = F(5) - F(2) + F(2) - F(1) = 0.95 - 0.53 + 0.53 - 0.31 = 0.64

So the calculated probabilities are:

(a) P(X = 2) = 0.22

(b) P(X > 3) = 0.11

(c) P(2 ≤ X ≤ 5) = 0.42

(d) P(2 < X ≤ 5) = 0.64

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The exercise involves finding the product C = AB, where matrix A is given by [2 9] and matrix B is given by [3 6 1]. We need to perform the matrix multiplication to obtain the resulting matrix C.

Let's calculate the matrix product C = AB step by step:

Matrix A has dimensions 2x1, and matrix B has dimensions 1x3. To perform the multiplication, the number of columns in A must match the number of rows in B.

In this case, both matrices satisfy this condition, so the product C = AB is defined.

Calculating AB:

AB = [23 + 912 26 + 94 21 + 95]

[103 + 612 106 + 64 101 + 65]

Simplifying the calculations:

AB = [6 + 108 12 + 36 2 + 45]

[30 + 72 60 + 24 10 + 30]

AB = [114 48 47]

[102 84 40]

Therefore, the product C = AB is:

C = [114 48 47]

[102 84 40]

In summary, the matrix product C = AB, where A = [2 9] and B = [3 6 1], is given by:

C = [114 48 47]

[102 84 40]

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Answer: 56%

Probably that it will rain and she goes + probably that it will be sunny and she goes

=     0.4 * 0.2     +           0.6*0.8

=          0.08      +              0.48

=   0.56

56% chance

The statement "To determine chilling hours for an area, count the cumulative number of hours between November 1st and February 15th that the air temperature is between 32 and 45 degrees F" is true.

In horticulture, chilling hours are the number of hours in which the air temperature is between 32 and 45 degrees Fahrenheit and are commonly used in fruit crop production to determine the required winter rest period. It is calculated between November 1st and February 15th since these months are considered the winter season and are known for their cool temperatures.

Chilling hours are an essential factor in determining the growth, development, and yield of fruit trees, which require a particular amount of chilling hours to flower and bear fruit.

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