7. What is meant by the notations AE AE, and AE?​

Answer:

Conservation

Step-by-step explanation:

Conservation is the principle that an object maintains the same size and shape even if it is repositioned or divided in certain ways.

The transformation ratio for coupling an audio amplifier with an output impedance of 7500 ohms to a speaker with an input impedance of 12 ohms is approximately 625:1.

The transformation ratio, also known as the impedance matching ratio, is calculated by dividing the output impedance by the input impedance. In this case, the transformation ratio is 7500 ohms (output impedance) divided by 12 ohms (input impedance), which equals approximately 625:1. This means that for every 625 ohms of output impedance, there is 1 ohm of input impedance.

Impedance matching is important in audio systems to ensure maximum power transfer and minimize signal distortion. When the output impedance of the amplifier is significantly higher than the input impedance of the speaker, a large portion of the power is lost due to mismatched impedances. By using a transformer or an appropriate matching network, the transformation ratio allows the impedance mismatch to be minimized, enabling efficient power transfer from the amplifier to the speaker. In this case, the transformation ratio of 625:1 ensures that the majority of the power generated by the amplifier is delivered to the speaker, optimizing the audio system's performance.

Learn more about ratio here:

https://brainly.com/question/13419413

#SPJ11

The percentage of the students who wore a silly hat is 64 %.

The percentage is defined as a ratio expressed as a fraction of 100.

We have been given that Last Tuesday was a silly hat day at Aaron's school. 64 students wore a silly hats and 36 students did not.

We have to determine the percentage of the students who wore a silly hat

The total number of students = 64 students wore silly hats and 36 students did not.

The total number of students = 64 + 36 = 100

We have to determine the percentage of the students who wore a silly hat

The percentage of the students wore a silly hat = (64/ 100) × 100

The percentage of the students wore a silly hat = 0.64 × 100

The percentage of the students wore a silly hat = 64 %

Thus, the percentage of students who wore silly hats is 64 %.

Learn more about percentage here:

brainly.com/question/24159063

#SPJ1

The population density is the ratio of the number of geese to the area. Then the greatest population density in pond C is 128.

The population density is defined as the number of objects present in the unit area.

The formula is given as

\(\rm Population\ density = \dfrac{number\ of \ object}{total \ area}\)

The table shows the number of resident geese living in four different ponds. a 3-column table has 4 rows.

Then the greatest population density of the geese will be

\(\rm Population\ density = \dfrac{192}{1.5} = 128\)

More about the population density link is given below.

https://brainly.com/question/1581160

Answer:

pond B

Step-by-step explanation:

edg 2022

The probability that at least 22 out of 25 computers will work in good condition is approximately 0.0250, or 2.5%.

To calculate the probability that at least 22 out of 25 computers will work in good condition, we can use the binomial distribution formula.

The binomial distribution formula is given by:

\(P(X = k) = C(n, k) \times p^k \times (1 - p)^{(n - k)\)

Where:

P(X = k) is the probability of getting exactly k successes,

C(n, k) is the number of ways to choose k items from a set of n items (also known as the binomial coefficient),

p is the probability of success on a single trial, and

n is the total number of trials.

In this case, n = 25 (the total number of computers selected), k ranges from 22 to 25 (at least 22 working computers), and p = 0.89 (probability of a computer working, which is 1 - 0.11).

Let's calculate the probability using these values:

P(X ≥ 22) = P(X = 22) + P(X = 23) + P(X = 24) + P(X = 25)

\(P(X = k) = C(25, k) \times 0.89^k \times 0.11^{(25 - k)\)

\(P(X = 22) = C(25, 22) \times 0.89^{22} \times 0.11^3\)

\(P(X = 23) = C(25, 23) \times 0.89^{23} \times 0.11^2\)

\(P(X = 24) = C(25, 24) \times 0.89^{24} \times 0.11^1\)

\(P(X = 25) = C(25, 25) \times 0.89^{25} \times 0.11^0\)

Calculate the binomial coefficients, we can find:

P(X = 22) ≈ 0.0210

P(X = 23) ≈ 0.0038

P(X = 24) ≈ 0.0002

P(X = 25) ≈ 0.0000

Finally, summing up these probabilities:

P(X ≥ 22) ≈ 0.0210 + 0.0038 + 0.0002 + 0.0000

≈ 0.0250

Therefore, the probability that at least 22 out of 25 computers will work in good condition is approximately 0.0250, or 2.5%.

Learn more about binomial distribution click;

https://brainly.com/question/29163389

#SPJ4

Answer: 720 inches

Step-by-step explanation:

To find volume of a rectangular prism, we need to multiply L x W x H , so we would do-

15 x 8 x 6 and get 720in

Answer: Fre.e points :^

Step-by-step explanation: Ty *bows* u-u

The hybrid orbitals produced by ethene, ethyne (acetylene), and methane are as follows:Sp2, sp, and sp respectively.The orbitals of the molecule are used to bind atoms together.

There are two kinds of orbitals: atomic and molecular orbitals. An atom's hybrid orbitals are formed by combining its atomic orbitals. The hybridization of atomic orbitals can describe how atoms bond to form molecules and which atoms bond in certain types of bonds in a given molecule.

The hybridization of an atom is determined by the number of sigma bonds it creates. Hybridization describes the mixing of several atomic orbitals into the same hybrid orbital. Carbon, for example, has two 2p orbitals and two 2s orbitals. The sp hybrid orbitals result from the mixing of one 2s orbital and one 2p orbital.

The sp2 hybrid orbitals in the carbon atom result from the combination of one 2s orbital and two 2p orbitals. The three sp2 hybrid orbitals are located in a single plane and are separated by 120° angles. The remaining unhybridized 2p orbital is perpendicular to the plane formed by the three hybrid orbitals, and it forms a pi bond with another atom.The sp3 hybrid orbitals in the carbon atom result from the combination of one 2s orbital and three 2p orbitals.

The four sp3 hybrid orbitals are arranged in a tetrahedral geometry around the carbon atom, with 109.5° bond angles between them.

The hybridization of an atom is determined by the number of sigma bonds it creates. Hybridization describes the mixing of several atomic orbitals into the same hybrid orbital. Carbon, for example, has two 2p orbitals and two 2s orbitals. The sp hybrid orbitals result from the mixing of one 2s orbital and one 2p orbital.

The sp2 hybrid orbitals in the carbon atom result from the combination of one 2s orbital and two 2p orbitals. The sp3 hybrid orbitals in the carbon atom result from the combination of one 2s orbital and three 2p orbitals. The hybrid orbitals produced by ethene, ethyne (acetylene), and methane are as follows: sp2, sp, and sp respectively.

To know more about ethene visit :

brainly.com/question/29367847

#SPJ11

Answer:

At least 7 girls: 0.5^7 OR 0.0078125

At least 8 girls: 0.5^8 OR 0.00390625

Underestimate the chances of arriving on time. Probability is a measure of the likelihood of an event occurring. It is usually expressed as a decimal or fraction between 0 and 1, with 0 indicating that the event will not occur and 1 indicating that the event will definitely occur.

The correct option is (c)

Now, According to the question:

Let's know:

What is Probability?

Probability is simply how likely something is to happen. Whenever we're unsure about the outcome of an event, we can talk about the probabilities of certain outcomes—how likely they are. The analysis of events governed by probability is called statistics.

To determine the probability that your employee will arrive at Phoenix on time, you need to multiply the probabilities of the two flights being on time. Probability can be used to make predictions about the outcome of an event or to understand the likelihood of different outcomes occurring.

The probability that the flights will both be on time is:

70% x 80% = 56%.

This is less than the probability of either flight being on time individually, so your employee would tend to underestimate the chances of arriving on time.

Learn more about Probability at:

https://brainly.com/question/795909

#SPJ4

The probability that at least one box in a selection of three candy gift boxes will weigh less than 34 ounces needs to be found.

To calculate the probability, the weight of a box can be considered as the sum of the weights of the individual candies in the box. The weights of the individual candies are normally distributed with known means and standard deviations.

Using the properties of normal distributions, the weights of the boxes can be modeled as normally distributed with a mean of 27 ounces (9 candies x 3 ounces per candy) and a standard deviation of 0.374 ounces (sqrt(4*(0.2^2)+5*(0.3^2)+0.1^2)). Then, the probability of at least one box weighing less than 34 ounces can be calculated using the normal distribution function.

The calculated probability is 0.0569, or approximately 5.69%. Thus, there is a 5.69% chance that at least one of the three selected candy gift boxes will weigh less than 34 ounces.

You can learn more about probability at

https://brainly.com/question/25839839

#SPJ11

The probability that at least one box will weigh less than 34 ounces is approximately 0.117.

To solve this problem, we can use the Central Limit Theorem to approximate the distribution of the total weight of three gift boxes. The mean weight of one gift box is 3*(4)+5*(3) = 27 ounces, and the standard deviation is sqrt((4*(0.2)^2 + 5*(0.3)^2)) = 0.69 ounces.

The probability that one gift box weighs less than 34 ounces is given by the standard normal distribution, which we can find using a z-score of (34-27)/0.69 = 10.14.

The probability that all three boxes weigh at least 34 ounces is (1-0.117)^3 = 0.770, so the probability that at least one box weighs less than 34 ounces is approximately 1 - 0.770 = 0.117.

For more questions like Probability click the link below:

https://brainly.com/question/11234923

#SPJ11

Given the length of equators for 4 planets

What are possible estimates for the lengths of the equators of Jupiter and Earth?

As shown:

The length of the equator of the earth = 40,030 km

The length of the equator of Jupiter = 439,264 km

We will divide the length of the equator of Jupiter by Earth:

By rounding to the nearest whole number

So, the answer will be:

So, the Jupiter equator is 11 times the equator of Earth

Solve the rational equation by combining expressions and isolating the variable y (solve for y). So, nothing further can be done with this topic:

Answer: y=2x^2+4x+1

Answer:

five and thirty eight thousandths

Answer:

8x

Step-by-step explanation:

Answer:

I think it is 8x

Step-by-step explanation:

Hope this helped have an amazing day/month/year!

Answer:  The answer is C ≈ 18.85 meters.

Step-by-step explanation: The formula that you need is...

2 × π (pi or approximately 3.14) × r (which is the radius)

In this case, your radius is 3, so you solve by 2 × π (pi or approximately 3.14) × 3 which equals 18.8495559215 but you round to your nearest hundredth which gets you to have 18.85 meters as your answer! I hope this helps!

radius= 3 m

the perimeter of the circle.

\(perimeter = 2\pi \: r\)

\(p = 2 \times \pi \times 3\)

\(p = 18.84956\)

\(p = 18.95\)

Answer:

15 metters

Step-by-step explanation:

hope this helps you.

The survival time of a 60kg deer without food at -20 degrees Celsius depends on various factors, including its age, sex, and physical condition. However, assuming the deer is healthy and has 5kg of fat, it could potentially survive for around 30 to 50 days without food.

The exact survival time can vary depending on several factors, such as the deer's level of physical activity, environmental conditions, and how much energy it is expending to stay warm in the cold temperature. Additionally, if the deer is able to find sources of water, this can also increase its chances of survival.

It's important to note that this is just an estimate and that the actual survival time may vary. If the deer is injured or sick, its chances of survival may be reduced, and it may not be able to survive as long without food.

Learn more about “20 degrees Celsius  “ visit here;

https://brainly.com/question/827047

#SPJ4

Complete Question

How many days could a 60kg deer survive without food at -20 degrees Celsius if it has 5kg of fat?

Answer:

12 ft

Step-by-step explanation:

Hi there!

1) Find the length of the other leg in the right triangle

There are two ways we can go about this. The first way is to use trigonomic ratios:

We're given one of the legs and we're trying to solve for the other, so we can use the tangent ratio:

\(tan\theta=\frac{opp}{adj}\)

Let x be equal to the length of the other leg. Plug in the known values:

\(tan45=\frac{x}{7}\\7*tan45=x\\x=7\)

The other way to find this is to observe the angles. Because we're given that two of the angles are 45 and 90 degrees, we know that the third angle is 45 degrees. This makes this an isosceles triangle, meaning the other leg is 7 ft long.

2) Determine the height of the hoop

Add 7 ft and 5 ft (the person's height):

7+5=12 ft

I hope this helps!

The value of angle S is 53°

Exterior angle theorem states that the measure of an exterior angle of a triangle is equal to the sum of two remote interior angles.

With this theorem we can say that

7x+2 = 4x+13+19

collecting like terms

7x -4x = 13+19-2

3x = 30

divide both sides by 3

x = 30/3

x = 10

Since x = 10

angle S = 4x+13

angle S = 4(10) +13

= 40+13

= 53°

Therefore the measure of angle S is 53°

learn more about exterior angle theorem from

https://brainly.com/question/17307144

#SPJ1

Answer:

3+2t

Step-by-step explanation:

Answer:

2/1 a improper fracrion 1/2 is a proper fraction

Step-by-step explanation: i just know those two sorry

Answer:

slope = 2

Step-by-step explanation:

slope is defined as change in y over change in x. for every +1 in the x direction, y receives +2. 2/1 = 2

The difference quotient of f(x) is \(\frac{-\frac{1}{h}+ 5}{5x+ h -12}\) .

According to the given question.

We have a function

f(x) = -1/(5x -12)

As we know that, the difference quotient is a measure of the average rate of change of the function over and interval.

The difference quotient formula of the function y = f(x) is

[f(x + h) - f(x)]/h

Where,

f(x + h) is obtained by replacing x by x + h in f(x)

f(x) is a actual function.

Therefore, the difference quotient formual for the given function f(x)

= [f(x + h) - f(x)]/h

= \(\frac{\frac{-1}{5(x+h)-12} -\frac{-1}{5x-12} }{h}\)

= \(\frac{\frac{-1}{5x + 5h -12}+\frac{1}{5x-12} }{h}\)

= \(\frac{\frac{-1+5h}{5x + 5h-12} }{h}\)

= \(\frac{-1+5h}{(5x +h-12)(h)}\)

= \(\frac{-1+5h}{5xh + h^{2} -12h}\)

= \(\frac{h(-\frac{1}{h}+5) }{h(5x+h-12)}\)

= \(\frac{-\frac{1}{h}+ 5}{5x+ h -12}\)

Hence, the difference quotient of f(x) is \(\frac{-\frac{1}{h}+ 5}{5x+ h -12}\) .

Find out more information about difference quotient here:

https://brainly.com/question/18270597

#SPJ4

Answer:

250%

Step-by-step explanation:

divide both sides by 0. 4 so A/0.4=B then rearrange so then its (1/0.4)xA=B then divide so its 2.5A=B and obviously 2.5= 250/100 so that makes the answer 250%

is that better?

Answer:

260,000,000,000,000

Step-by-step explanation:

200,000,000

x 13,000,000

260,000,000,000,000

If there are 25% discount on the pair of shoes, then the sale price of boots are, $71.24

Sale price refers to the price at which a product or service is offered for sale after a discount or reduction from its original or regular price. Sale price is a promotional tool used by retailers to encourage customers to purchase products or services by offering them at a lower price than their regular price. The purpose of a sale price is to increase sales and generate revenue, as well as to clear inventory, attract new customers, and increase brand awareness. The calculation of sale price is typically performed by subtracting a certain percentage or dollar amount from the original or regular price.

Given that,

The boots are $94.99 and are 25% off,

so the discount amount is

⇒ $94.99 x 0.25 = $23.75.

The sale price of the boots is

⇒ $94.99 - $23.75

⇒ $71.24

Rounded to the nearest cent, the sale price is $71.24

To know more about Sale Price check:

https://brainly.com/question/20418815

#SPJ6

Answer:7

Step-by-step explanation:

To find the median you need to first put the number in order from least to greatest this would be 2, 4 ,5, 7, 7, 7, 8

next you have to find the number in the middle

That is your median, 7 is your median.

There are 140 degrees Fahrenheit in 60 degree celcius.

To convert temperatures from degrees Fahrenheit to degrees Celsius, multiply the result by.5556 (or 5/9) after subtracting 32. When converting from degrees Celsius to Fahrenheit, multiply the result by 1.8 (or 9/5) and then by 32.

The Fahrenheit and Celsius scales are used to measure temperature. Celsius (°C) is a metric scale and Fahrenheit (°F) is an imperial scale. To convert a temperature from Celsius to Fahrenheit, you can use the formula:

°F = (°C × 9/5) + 32. In this case, 60°C × 9/5 = 108 and 108 + 32 = 140°F.

So, 60 degrees Celsius is equal to 140 degrees Fahrenheit. It's important to know both scales because they are used in different parts of the world and in different fields, such as meteorology,

medicine, and cooking. Understanding how to convert between these two temperature scales is a valuable skill for anyone dealing with temperature measurements.

To know more about degree visit:

brainly.com/question/14569348

#SPJ4

Answer:

After 17,190 years, the amount of carbon-14 left would be approximately 5 mg.

The half-life of carbon-14 is 5,730 years, which means that every 5,730 years, half of the remaining carbon-14 decays. To calculate the amount of carbon-14 remaining after 17,190 years, we can use the formula:

A = A0 * (1/2)^(t/T)

where:

A0 is the initial amount (80 mg)

t is the time elapsed (17,190 years)

T is the half-life (5,730 years)

A = 80 * (1/2)^(17,190/5,730)

A = 80 * (1/2)^3

A = 80 * (1/8)

A = 10 mg * 1/2

A = 5 mg

A;the Liberian survey all eighth-grade students

Answer:

D on Ape.x

Step-by-step explanation:

Yes, the sample size would be large enough if the population is school-aged children and young adults in the United States as this is a simple random sampling.

Simple random sampling is used for randomly selecting the sample size for research. No member in the population has a higher chance in comparison to others for selection in sampling. Every individual has an equal chance to be a part of the sample for the study. This is a type of probability sampling method.

The probability sampling method states that every individual has a fair and equal chance to be selected as a research sample. It includes simple random sampling, stratified sampling, systematic sampling, and cluster sampling. Here the researchers have picked around 150 students and young adults which is an appropriate amount of simple random sample for the study.

Learn more about sampling methods here https://brainly.com/question/17743025

#SPJ4

\(\bold{\huge{\underline{ Solution }}}\)

We have given one graph which is plot between distance and time. where time is in minutes and distance is in seconds.

According to the graph

1) Between O and A

2) Between A and B

3) Between B to C

4) For covering the First 6 km ,

According to the graph,

5) No, Marellize and wally walk does not from where they have started.

According to the graph

The line between O and A is a straight line graph while A and B is a constant graph.

A graph simply means a pictorial representation of information or data that's given.

In this case, O and A is a straight line graph while A and B is a constant graph. A straight line graph illustrates a linear relationship between between the x and y values.

Learn more about graph on:

https://brainly.com/question/14323743