please help im very bad at math and require assistance because its my last week of school before break and im behind T^T

Answer:

============

Since both points have same y-coordinate, the distance between the points is the difference of x-coordinates:

Probability of chosen the acre of land as per given conditions are as follow:

a. Probability of chosen the acre of land not forested is 0.62.

b. Probability of chosen the acre of land either forest or agriculture is 0.45.

c. Probability of chosen the acre of land other than forest or agriculture is non-forested which is equal to 0.62.

As given in the question,

Given probability are:

Probability of chosen the acre of land is forest is equal to 0.38.

Probability of chosen the acre of land is agriculture is equal to 0.07.

Probability of chosen the acre of land as per given conditions are as follow:

a. Let P(A) represents the probability of chosen the acre of land is forest.

Then P(A') is the probability of not forested.

P(A) + P(A') = 1

⇒0.38 + P(A') = 1

⇒ P(A') = 1 - 0.38

⇒ P(A') = 0.62

b. Let P(G) is the probability of chosen acre of land agricultural.

No common land given for forest or agriculture, they are independent events.

P(A∩G) = 0

Probability of chosen the acre of land either forest or agriculture

= P( A or G)

= P(A) + P(G) - P(A∩G)

= 0.38 + 0.07 -0

= 0.45

c. Probability of chosen the acre of land other than forest or agriculture is non-forested which is equal to 0.62.

Therefore, probability of chosen the acre of land as per given conditions are as follow:

a. Probability of chosen the acre of land not forested is 0.62.

b. Probability of chosen the acre of land either forest or agriculture is 0.45.

c. Probability of chosen the acre of land other than forest or agriculture is non-forested which is equal to 0.62.

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Given that

1:2

now,

1*2

2

Question example:

Tori bought one share of Chipotle stock on Nov 1, 2016 for $396.33. Then, four years later, she sold it and the closing price for that day was $778.38.

a)How much money did she gain/lose with this stock?

b)What was Tori’s return on investment?

Answer and explanation:

The ROI(Return on investment) formula calculates the percentage return on the initial cost of investment.

To calculate return on investment, we must first calculate how much is gained or lost by subtracting price of investment when sold from price of investment when bought.

In the question above, the gain on the investment is gotten by subtracting closing price of Chipotle stock four years later $778.38 from price of Chipotle stock when it was bought on Nov 1, 2016 $396.33= $382.05

By getting our gain or loss on investment first, we are able to find the Return on investment(ROI) in percentage thus: $382.05/$396.33×100/1= 96.39%

We simply cannot divide first before subtraction because we need to get the gain or loss on investment and then express it as a percentage of the initial investment cost to get our ROI

We want to find the height of the dollhouse's front door.

Since the dollhouse's measures is given in inches, we have just two possible right choices:

because the answer should be given in inches.

If the correct option were the third one, 14 in,

then the real door measure would be twice in feet: 28 feet.

If the correct option were the first one, 3 1/2 in,

then the real door measure would be twice in feet: 7 in.

28 feet is a really big door. It is more likely for a house to have a 7 in door.

The correlation coefficient having -negative value means inverse correlation and +positive value means direct relationship.

An analytical way to gauge how strongly two variables are linearly related is to use the correlation coefficient. Anywhere between -1 and 1 can be its value. A correlation coefficient of -1 indicates a perfect negative, inverse, or inverse-correlation, where values in one series increase as those in the other decline and vice versa. An exact positive correlation or direct relationship is indicated by a coefficient of 1, or 1. In the absence of a linear relationship, a correlation coefficient of 0 indicates.

When evaluating the level of association between two variables, factors, or data sets, scientists and financiers alike use correlation coefficients. Assuming, for instance, that there is a strong positive correlation between oil prices and forward returns on oil stocks given that high oil prices are advantageous for crude producers

Now,

For

A. r = 0.921 -Direct relationship.

B. r= -0.873 -Inverse relationship.

C. r = -0.281 -Inverse relationship.

D. r = 0.303 -Direct relationship.

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Answer:

7.57082 or its just 7.5

Answer:

0.750 kg

Step-by-step explanation:

Hi there ,

As you know 1 kg = 1000g

So when we convert g to kg then we divide the given value of grams by 1000.

So in this case we have 750 grams, changing it we have :

\(\frac{750}{1000}\)

Since there are 3 zeroes in 1000 we move the decimal point by 3 places to the left leaving the answer as : 0.750 kg or \(\frac{750}{1000}\) kg

Please mark me as brainliest if you found the above answer helpful

A. Mean = 2.2 seconds, B. Standard deviation = 1.271 seconds, C. P(x=3.2) = 0, D. P(0.4 < x < 1.8) = 0.3636, E. P(x > 2.48) = 0.4918, F. P(2.7 < x < 4.3) = 0.5455, G. 1.5125 seconds, H. 0.7777 seconds

The answers are as follows:

A. The mean of the distribution is 2.2 seconds.

B. The standard deviation of the distribution is 1.2728 seconds.

C. The probability that a wave will crash exactly 3.2 seconds after the person arrives is zero, since this is a continuous distribution.

D. The probability that a wave will crash between 0.4 and 1.8 seconds after the person arrives is 0.3182.

E. The probability that it will take longer than 2.48 seconds for the wave to crash after the person arrives is 0.4359.

F. The probability that it will take between 2.7 and 4.3 seconds for the wave to crash onto the shoreline is 0.4545.

G. The person will wait at least 3.6 seconds before the wave crashes in 29% of the time.

H. The minimum for the lower quartile is 1.2031 seconds.

The given problem involves a Uniform distribution, which is a continuous distribution that assumes equal probability of the occurrence of all values within a given range. The mean and standard deviation of the distribution can be calculated using the formulas for a Uniform distribution. The probabilities of various events can be calculated using the properties of a Uniform distribution.

In part C, the probability of a wave crashing exactly at a particular time is zero since it is a continuous distribution. In part D, the probability of a wave crashing between two particular times can be found by calculating the area under the probability density function between those times. Similarly, in part E, the probability of a wave crashing after a particular time can be found by calculating the area under the probability density function after that time.

In part F, we need to find the probability that a wave will crash between two particular times given that the person has already been waiting for 1.3 seconds. This is an example of a conditional probability and can be calculated using the conditional probability formula.

In part G, we need to find the minimum time for which the wave will crash in 29% of the time. This can be found by calculating the inverse of the cumulative distribution function.

Finally, in part H, we need to find the minimum time at which the lower quartile occurs. This can be calculated using the formula for the lower quartile of a Uniform distribution.

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The present value of the loan is found to be  approximately $70.28.

To find the present value of a loan, we can use the formula:

Present Value = Future Value / (1 + (interest rate * time))

Given that the future value is $1,321.17, the interest rate is 7.75%, and the time is 230 days, we can plug in these values into the formula:

Present Value = 1321.17 / (1 + (0.0775 * 230))

Calculating the expression in the parentheses first:

Present Value = 1321.17 / (1 + 17.8075)

Simplifying further:

Present Value = 1321.17 / 18.8075

Evaluating the division:

Present Value ≈ $70.28

Therefore, the present value of the loan is approximately $70.28.

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Answer:

x = -1.6

Step-by-step explanation:

To find the value of x

4x - 5 = -6x - 21

Transpose

4x + 6x = -21 + 5

10x = -16

x = -16/10

x = -1.6

There are 60 peanuts and 24 raisins in the mix. We can use given ratio to set up a system of equations.

To solve this problem, we can start by using the ratio of peanuts to raisins, which is 5:2. This means that for every 5 peanuts, there are 2 raisins. We can use this ratio to set up a system of equations. Let x be the number of peanuts in the mix, and y be the number of raisins in the mix. We know that:

x + y = 84 (the total number of peanuts and raisins is 84)

x/y = 5/2 (the ratio of peanuts to raisins is 5:2)

We can use the second equation to solve for x in terms of y:

x/y = 5/2

x = (5/2)y

We can then substitute this expression for x into the first equation:

x + y = 84

(5/2)y + y = 84

(7/2)y = 84

y = 24

Finally, we can use this value of y to solve for x:

x + y = 84

x + 24 = 84

x = 60

Therefore, there are 60 peanuts and 24 raisins in the mix.

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Complete Question:

A mix of peanuts and raisins contains five peanuts for every two raisins. So if the total number of peanuts and raisins in a mix is 84, calculate the number of peanuts of raisins in the mix.

Step-by-step explanation:

Store A:

6% of 1,200 is 72

72 + 1,200 = 1,272

Thus, store A has a total of 1,272

Store B:

7% of 1,350 is 94.5

94.5 + 1,350 = 1444.5

Thus, Store B has a total of 1444.5

1444.5 - 1,272 = 172.5

Thus, Store A is cheaper.

Answer:

sales tax- rate×original amount

A- 6/100(1200)=72

B- 7/100(1350)=94.5

the frequency of the C5+ photon is approximately 7.31 x 10^14 Hz, rounded to three significant figures.

The frequency of a photon can be calculated using the Bohr equation. In this case, we are considering a C5+ ion transitioning from energy level n=6 to n=2. The Bohr equation is given by:

ν = R_H * (1/n_f^2 - 1/n_i^2)

where ν is the frequency of the photon, R_H is the Rydberg constant (approximately 3.29 x 10^15 Hz), n_f is the final energy level, and n_i is the initial energy level.

Substituting the values into the equation, we have:

ν = 3.29 x 10^15 Hz * (1/2^2 - 1/6^2)

Simplifying the equation further, we get:

ν = 3.29 x 10^15 Hz * (1/4 - 1/36)

Calculating the value, we find:

ν = 3.29 x 10^15 Hz * (8/36)

ν ≈ 7.31 x 10^14 Hz

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The probability that the sample mean differs from the population mean by 1.8mm and is rounded off to 4 decimal places is 0.8220

According to the given problem the mean diameter μ= 140 mm (population mean) and the standard deviation is σ=8mm

random sample size, n= 49 steel bolts is selected

Let the random variable that represents the diameter of steel bolts be denoted by x and from the problem we have x = 1.8mm

Let z = (x-μ) / (σ/√n )         (1)

using formula (1) and when the sample mean differs from the population mean by more than 1.8mm

z = 1.8/(8/√49 )

⇒z = 63/40 = 1.575

The probability that the sample mean will differ from the population mean by more than 1.8 mm

P( z > 1.575) = 1 - P(z< 1.575) = 1 - 0.178 = 0.822

The probability that the sample mean will differ from the population mean by more than 1.8 mm = 0.8220

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To flush twice the volume of water contained in the system, you would need to flush 18.2 gallons x 2 = 36.4 gallons of water through the system.

To calculate the volume of water contained in the system, you would use the formula for the volume of a cylinder: V = πr^2h, where r is the radius of the pipe (half the diameter), h is the length of the pipe, and π is approximately 3.14.

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Answer:

ranalllldooo

Step-by-step explanation:

suiiiiiii

Answer:

I think the answer is 17

Step-by-step explanation:\

The pattern is counting down. 3 plus 5 is 8, 8 plus 4 is 12, 12 plus 3 is 15, and 15 plus 2 is 17.  

I hope this helps :)

Answer: $16.95 per fern tree

Step-by-step explanation:

first, you want to find how much money the 7 balloons cost:

7(2.30) = 16.10

second, you want to find how much money you have left AFTER buying 7 balloons:

50 - 16.10 = 33.90

third, divide the money you have left by 2 (2 fern trees) to find the final answer:

33.90/2 = 16.95

i havent done these types of questions in some time, so please let me know if there are any mistakes. good luck! ꒰ ˆ ꒵ ˆ꒱

The probability of selecting an orange marble is 0.33.

Option B is the correct answer.

It is the chance of an event to occur from a total number of outcomes.

The formula for probability is given as:

Probability = Number of required events / Total number of outcomes.

We have,

The number of times each marble is selected.

Green = 4

Black = 6

Orange = 5

Total number of times all marbles are selected.

= 4 + 6 + 5

= 15

Now,

The probability of selecting an orange marble.

= 5/15

= 1/3

= 0.33

Thus,

The probability of selecting an orange marble is 0.33.

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The height of the prism is 5x + 3 units.

What is volume?

A measurement of three-dimensional space is volume. It is frequently expressed numerically using SI-derived units, as well as different imperial or US-standard units. Volume and the definition of length are related.

Given:

The volume of a rectangular prism is given by the expression

10x^3 + 46x^2 – 21x – 27. The area of the base of the prism is given by the expression 2x^2 + 8x – 9.

We have to find the height of prism.

Volume of the rectangular prism = Base × Height

The expression is in the Question be

10x ³ + 46 x² - 21x -27

And the  area of the base of the prism is given by the expression

2x² + 8x - 9 .

Put in the formula

10x ³ + 46 x² - 21x -27  = 2x² + 8x - 9  × Height

The factor of 10x ³ + 46 x² - 21x -27 are (5x +3 )(2x² + 8x - 9) .

put in the formula

(5x +3 )(2x² + 8x - 9) = (2x² + 8x - 9) × Height

Cancelled 2x² + 8x - 9 on both side.

(5x+3)unit = Height

Hence, the height of the prism is 5x + 3 units.

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25 mcg is equal to 0.025 mg. both are unit of measurement of weight.

The prefix "mcg" stands for microgram, which is a unit of measurement in the metric system that is one millionth of a gram (10⁻⁶ g). On the other hand, "mg" stands for milligram, which is one thousandth of a gram (10⁻³ g). Therefore, to convert from mcg to mg, you need to divide the value in mcg by 1000.

In this case, 25 mcg divided by 1000 equals 0.025 mg. It's important to be mindful of the units when dealing with measurements, as confusion between different units of measurement can lead to incorrect calculations and dosing errors.

Overall, when converting from mcg to mg, you can easily make the conversion by dividing the value in mcg by 1000, as the prefix "milli" represents a factor of 1000 in the metric system.

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There is no value of k that satisfies the given differential equation\(y'' + 9y = 26e^{(-2x).\)

To determine the value of k, we need to substitute the given function y = \(ke^{(-2x) }+ 4cos(3x)\)into the differential equation \(y'' + 9y = 26e^{(-2x)\) and see if it satisfies the equation.

First, let's find the second derivative of y. The derivative of \(ke^{(-2x)\)with respect to x is \(-2ke^{(-2x)\), and the derivative of 4cos(3x) with respect to x is -12sin(3x). Therefore, the second derivative of y is:

y'' = (-2k)\(e^{(-2x)\) - 36sin(3x)

Now, let's substitute this expression into the differential equation:

(-2k)\(e^{(-2x)\) - 36sin(3x) + 9(\(ke^{(-2x)\)) + 4cos(3x)) = 26\(e^{(-2x)\)

Simplifying this equation:

(-2k + 9k)\(e^{(-2x)\) + (36 - 9(4))sin(3x) + 9(4)cos(3x) = 26\(e^{(-2x)\)

(-2k + 9k)\(e^{(-2x)\) - 24sin(3x) + 36cos(3x) = 26\(e^{(-2x)\)

(-2k + 9k - 26)\(e^{(-2x)\) - 24sin(3x) + 36cos(3x) = 0

For this equation to hold for all values of x, the coefficients of the terms involving \(e^{(-2x)\), sin(3x), and cos(3x) must all be zero. Therefore, we can set up the following equations:

-2k + 9k - 26 = 0 (coefficient of \(e^{(-2x)\))

-24 = 0 (coefficient of sin(3x))

36 = 0 (coefficient of cos(3x))

The second and third equations indicate contradictions since -24 cannot equal zero and 36 cannot equal zero. Therefore, there is no value of k that satisfies the given differential equation.

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a) The probability of obtaining a sample of n = 25 scores with a mean greater than 94 is approximately 0.9938.

b) The probability of obtaining a sample of n = 25 scores with a mean less than 105 is approximately 0.5.

c) The probability of obtaining a sample of n = 25 scores with a mean less than 91 is approximately 0.0014.

d) The probability of obtaining a sample of n = 25 scores with a mean between 98 and 103 is approximately 0.1056.

a) For part (a), we calculate the z-score using the given sample mean of 94, the population mean of 105, the population standard deviation of 10, and the sample size of 25. The z-score is -5.5, and we find the probability associated with this z-score to be approximately 0.9938. This represents the likelihood of obtaining a sample mean greater than 94.

b) To calculate the probability for part (b), we consider the sample mean of 105, which is equal to the population mean. Since the mean of the sample is the same as the population mean, the probability is 0.5. This means that there is a 50% chance of obtaining a sample mean less than 105.

c) For part (c), we calculate the z-score using the given sample mean of 91, the population mean of 105, the population standard deviation of 10, and the sample size of 25. The z-score is -14, and the probability associated with this z-score is approximately 0.0014. This represents the likelihood of obtaining a sample mean less than 91.

d) To calculate the probability for part (d), we need to calculate the z-scores for the lower and upper limits of the given range. The z-score for 98 is -3.5, and the z-score for 103 is -1. We then find the area under the curve between these two z-scores, which is approximately 0.1056. This represents the probability of obtaining a sample mean between 98 and 103.

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The given statement can be proven by using congruent triangles and the properties of perpendicular lines. The two paragraphs below provide an explanation of the proof.

To prove that triangle BAE is congruent to triangle DAE, we can use the properties of right angles and the fact that EE is the midpoint of BD.

First, since AC is perpendicular to BD, we have a right angle at point E. This means that angle BAE is congruent to angle DAE.

Secondly, we know that EE is the midpoint of BD. This implies that the segments BE and DE are congruent.

By combining these two pieces of information, we can apply the Side-Angle-Side (SAS) congruence criterion. We have angle BAE congruent to angle DAE, segment BE congruent to segment DE, and segment AE common to both triangles.

Thus, we can conclude that triangle BAE is congruent to triangle DAE, as required.

In summary, the proof relies on the fact that AC is perpendicular to BD, which gives us a right angle at point E. Additionally, the midpoint property of EE ensures that BE is congruent to DE. By applying the SAS congruence criterion, we can establish the congruence of triangles BAE and DAE.

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Answer:

x = 10.8

y = 11.2

Step-by-step explanation:

AB : AP = AC : AQ

5 :(5+9) = 6 : (6+x)

5: 14 = 6 :(6+x)

5(6+x) = 14*6

30 + 5x = 84

5x = 54

x = 10.8

AB : AP = BC :PQ

5 :14 = 4 : y

5y = 14*4

y = 11.2

ANSWER:

1. translation: 3 units right and 1 unit down

2. 130°

Answer:

y=1 1/2 (fraction)

or

y=1.5 (decimal)

Step-by-step explanation:

We want to get y alone, so we need to get rid of the 1/2 in front of it. To do that we can multiply each side by 2 since 1/2 + 1/2 = 1.

3/4= 1/2y

multiply each side by 2

To multiply 3/4 by 2 you need to multiply the numerators and then multiply the denominators

2•3=6 & 4 • 1 =4

6/4

simplify

y=1 1/2

(If you need it in decimal form it would be y=1.5)

Hope this helps! If you have any questions on how I got my answer feel free to ask. Stay safe!