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The area of circle b is 25 times greater than the area of circle a. The radius of circle a is 3. What is the radius of circle a of circle b

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The area of circle b is 25 times greater than the area of circle a. The radius of circle a is 3. What is the radius of circle a of circle b

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Julie is a math tutor. She charges each student $210 for the first 7 hours of tutoring and $20 for each additional hour. When the number of hours (h) that Julie spends tutoring a student is greater than 7 (h > 7), the equation that gives the amount (A) that Julie earns in dollars is . If Julie earns $410 tutoring one student, the total number of hours she spent tutoring the student is .

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Julie is a math tutor. She charges each student $210 for the first 7 hours of tutoring and $20 for each additional hour. When the number of hours (h) that Julie spends tutoring a student is greater than 7 (h > 7), the equation that gives the amount (A) that Julie earns in dollars is . If Julie earns $410 tutoring one student, the total number of hours she spent tutoring the student is .

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Joshua wants to buy some land in Wyoming to start a free range chicken ranch. He wants the land to have a length 500 feet greater than the width, so the chickens have room to run. If the area of the land needs to be 1,742,400 square feet, what must the length be? Round answer to the nearest whole foot.

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Joshua wants to buy some land in Wyoming to start a free range chicken ranch. He wants the land to have a length 500 feet greater than the width, so the chickens have room to run. If the area of the land needs to be 1,742,400 square feet, what must the length be? Round answer to the nearest whole foot.

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The mass of the products in a reaction is always _______ when compared to the mass of the reactants in a reaction. greater lower equal inversely proportionate

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The mass of the products in a reaction is always _______ when compared to the mass of the reactants in a reaction. greater lower equal inversely proportionate

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The main difference between gases and liquids is that in gases A.the molecules are moving faster b.the forces between molecules are greater c.the distance between molecules are greater d.the molecules collide more frequently

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The main difference between gases and liquids is that in gases A.the molecules are moving faster b.the forces between molecules are greater c.the distance between molecules are greater d.the molecules collide more frequently

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A red in a blue number cube rolled determine that Proability that an odd number is rolled on the Red Cube and a number greater than 1 is rolled on the

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A red in a blue number cube rolled determine that Proability that an odd number is rolled on the Red Cube and a number greater than 1 is rolled on the

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Dominick is planning to take a vacation to either Orlando or Tampa Bay. He wants to go to the city that is warmer, on average. The box plot below shows the temperatures from the previous year during the time that Dominick will take his vacation:Which city should Dominick visit, and why? He should visit Orlando. It has a greater IQR. He should visit Orlando. The median is higher and the range is smaller, so the temperature is higher on average. He should visit Tampa Bay. The highest temperature occurred there. He should visit Tampa Bay. The range is very large, so there is a better chance that any given day will be warm.

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Dominick is planning to take a vacation to either Orlando or Tampa Bay. He wants to go to the city that is warmer, on average. The box plot below shows the temperatures from the previous year during the time that Dominick will take his vacation:Which city should Dominick visit, and why? He should visit Orlando. It has a greater IQR. He should visit Orlando. The median is higher and the range is smaller, so the temperature is higher on average. He should visit Tampa Bay. The highest temperature occurred there. He should visit Tampa Bay. The range is very large, so there is a better chance that any given day will be warm.

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The half-life of helium-5 is 7.6 x 10^-22 seconds, and the half-life of helium-9 is 7 x 10^-21 seconds. Approximately how many times greater is the half-life of helium-9 than that of helium-5?

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(7X10^-21)/(7.6X10^-22)  is equal to:

(7/7.6)(10^-21/10^-22)

Rule for division of similar bases with exponents…

(a^b)/(a^c)=a^(b-c)

In this case we have (10^-21)/(10^-22)=10^(-21–22)=10^1

And 7/7.6≈0.921, and we only had two significant figures so 0.92 works

0.92X10^1

9.2

So the half life of helium-9 is about 9.2 times greater than the half life of helium-5

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How many times greater is the underlined digit 7 at the left compared to the underlined digit 7 at the right 905763473

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How many times greater is the underlined digit 7 at the left compared to the underlined digit 7 at the right 905763473

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What is the range of the function f(x) = – 1/3 |x − 1| − 2? all real numbers all real numbers less than or equal to −2 all real numbers less than or equal to 1 all real numbers greater than or equal to −2

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What is the range of the function f(x) = – 1/3 |x − 1| − 2? all real numbers all real numbers less than or equal to −2 all real numbers less than or equal to 1 all real numbers greater than or equal to −2

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It is evident that the nation is experiencing a recessionary gap when potential output is less than aggregate output. potential output is decreasing at a rate greater than aggregate output is increasing potential output is decreasing. aggregate output is less than potential output. aggregate output is greater than potential output.

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Answered by answersmine AT 22/10/2019 – 04:27 AM

A recessionary gap is condition wherein the economy is operating below the full capacity of its employment level. An indication that an economy is experiencing a recessionary gap is when 
aggregate output is less than potential output
The answer is the 4th option.

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How did youth culture change during the 1920s? youth were expected to hold jobs that contributed to the welfare of the family. students were able to remain in school longer and an adolescent culture developed. both men and women were working outside the home, so youth were expected to shoulder greater responsibility. no real youth culture existed during the 1920s?

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The correct answer should be
Students were able to remain in school longer and an adolescent culture developed

These were people who started asking for permission less and less and developing their own youth culture that consisted of staying out long, dancing, they started dating and marrying as they saw fit, they could stay in school longer, both high school and college, and ultimately had more fun and less responsibilities.

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The body temperatures of adults are normally distributed with a mean of 98.6° f and a standard deviation of 0.60° f. if 36 adults are randomly selected, find the probability that their mean body temperature is greater than 98.4° f. 0.0228 0.8188 0.9360 0.9772

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Here the population standard deviation is 0.60 degree F.  If a sample of 36 adults is randomly selected, that results in a sample standard deviation of 0.60 degree F divided by the square root of 36:  0.10 degree F.

The probability in question is the area under the standard normal probability distribution between 98.4 degree F and infinity, and intuitively you can detect that this will be more than 0.5 (corresponding to 50%).

Convert 98.4 degrees F to a z-score, using the sample standard deviation (0.10 degree F).  That z score is 
       98.4-98.6
z = ————–   =  -0.20/0.10 = -2
           0.10

We need to determine the area under the standard normal curve to the right of z=-2.  Use a table of z-scores to do this, or use your calculator’s built-in probability functions.  My result is 98.21% (corresponding to an area of 0.9821).

With my calculator I can find this probability using the following command:

normalcdf(-2,100000,0.10).

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In the sequence 1, 2, 4, …. an an , every nth term for n > 1 is created by the equation an=a(n?1)?2 an=a(n?1)?2 . by what percent is the 11th term greater than the 9th term in this sequence?

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In the sequence 1, 2, 4, …. an an , every nth term for n > 1 is created by the equation an=a(n?1)?2 an=a(n?1)?2 . by what percent is the 11th term greater than the 9th term in this sequence?

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For the following issues, identify if it is an advantage of capitalism with a “C,” or a limitation of socialism with a “S.” less wealth inequality more possibility for economic growth greater emphasis on economic stability private ownership for individuals

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Based on the choices;

less wealth inequality more possibility for economic growth=S
greater emphasis on economic stability private ownership for individuals=C

For socialism less wealth because wealth is divided among the people and more focused on the nation’s economic condition. While capitalism has more opportunity and allows individual private ownership.

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Studies continue to prove that if a girl stays in school she will strengthen her family, community, and nation. A long list of benefits of educating a girl in a developing country compiled by the World Health Organization includes later marriages, smaller families, better hygiene, greatly increased likelihood that further children will receive education, and my favorite – greater confidence. A bicycle is a simple, sustainable tool that eases long travel distances and encourages girls to stay in school. —Foreword to Wheels of Change, Leah Missbach Day What is the central idea of this passage from the foreword?

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Here are a few pointers; hope this is useful)

Ovation-by definition- is show of appreciation from an audience, for a person’s accomplishments or flaw.

“Everyone deserves a standing ovation because we all overcometh the world.”

A person’s accomplishment could be how they made a positive change in this world, strong leadership- that makes them a effective leader or simply helping others. A person’s flaw- mistakes in life, sin or even guilt should also be considered an appreciation- an ovation for representing mankind’s flaw and that humanity makes mistakes, fulfilling at least one deadly sin such as greed, lust, selfishness etc.

Thus, regardless of a person’s achievement or flaw- a person deserves an applause for, not the least, living in this society and this world that we are all living together and dying together.

That was just the introduction.. the best part is yet to come.. now it’s your turn!!

Here are other pointers to talk about in your essay:

Shakespeare’s famous line “All the World’s a stage. That agrees with your line: “Everybody deserves a standing ovation…”

Shakespeare explains that men and women are like players: they live, and die, some being celebrated and some forever living in solitude till their death. Shakespeare states the world is a “stage” which symbolizes that mankind is in its peak. The world is changing everyday: little by little and humanity is falling behind.
Due to our world turning into machinery: factories, an automotive future: where humans only job to live (entrance) and to die (exit) the famous humans remembered and the flawed not recalled.

This is according to Shakespeare’s imagery.

I don’t know what grade your in, but I think simplifying Shakespeare’s word of mouth in your essay would be handy and useful as it has strong references of your quote, and agrees strongly in your essay.

Hope this helps 🙂

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As a result of more advanced weapons, many soldiers during the Civil War decided to enlist in the army. suffered greater injuries. died from disease or infection. spent more time drilling than fighting.

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Answer: Exhilarating

In literature, “mood” refers to the general feeling that a piece creates within the reader through the use of words and descriptions.

In this excerpt, the author gives several descriptions that make the situation sound difficult, unpredictable and exciting, such as: “deafening noise,” “made the alarm… more intense,” and “a state of anxiety.” These words evoke an exhilarating feeling in the reader.

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If a driver who is under the age of 21 is stopped by a law enforcement officer and has a blood alcohol level of .02 or greater, driving privilege for the driver will be suspended for

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If a driver who is under the age of 21 is stopped by a law enforcement officer and has a blood alcohol level of .02 or greater, driving privilege for the driver will be suspended for

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Which statement correctly compares the pH of water to that of other substances? a: The pH of water increases as its temperature increases, while other substances have a stable pH. b: The pH of water is neutral; it is higher than the pH of acids and lower than pH of bases c: Water contains more hydrogen ions than most other substances, giving it a higher pH. d: Water is neutral and has a pH of 0; acids have a pH greater than 0 and bases have a pH less than 0

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In tropical rain forest, the animals will have to deal with higher temperatures and greater rainfall. One example of an adaptation they might need is a thin, water-proof coat. This will prevent heat from becoming trapped inside their fur/hair/feathers, and the water-absorbing coating will allow water to stick to the inside of the coat without being absorbed, where the water will absorb the heat instead of themselves, and will cool the through evaporative cooling (heat release through evaporation)

In a deciduous forest, there is much colder temperatures, and significantly less rainfall. These animals would likely want a thicker water-proof coat. This is because the thicker coat would allow heat to become trapped, keeping them warm in the winter, and the water-proof coating prevents water from freezing in their fur, making them colder.

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It is a fraction. it is greater than 0.5 and less than 0.9. its denominator is a square number.its numerator number is a prime number. what could be the mystery number be?

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Answer:

Option C – BD=76 cm

Step-by-step explanation:

Given : You are designing a diamond-shaped kite. you know that AD = 44.8 cm, DC = 72 cm, and AC = 84.8 cm.

To find : How long BD should it be?

Solution :

First we draw a rough diagram.

The given sides were AD = 44.8 cm, DC = 72 cm and AC = 84.8 cm.

According to properties of kite

Two disjoint pairs of consecutive sides are congruent.

So, AD=AB=44.8 cm

DC=BC=72 cm

The diagonals are perpendicular.

So, AC ⊥ BD

Let O be the point where diagonal intersect let let the partition be x and y.

AC= AO+OC

AC=  x+y=84.8 …….[1]

Perpendicular bisect the diagonal BD into equal parts let it be z.

BD=BO+OD

BD=z+z

Applying Pythagorean theorem in ΔAOD

where H=AD=44.8 ,P= AO=x , B=OD=z

H^2=P^2+B^2

(44.8)^2=x^2+z^2  ………[2]

Applying Pythagorean theorem in ΔCOD

where H=DC=72 ,P= OC=y , B=OD=z

H^2=P^2+B^2

(72)^2=y^2+z^2 …………[3]

Subtract [2] and [3]

(72)^2-(44.8)^2=y^2+z^2-x^2-z^2

5184-2007.04=(x+y)(x-y)

3176.96=(84.8)(x-y)

37.464=x-y ……….[4]

Add equation [1] and [4], to get values of x and y

x+y+x-y=84.8+37.464

2x=122.264

x=61.132

Substitute x in [1]

x+y=84.8

61.132+y=84.8

y=23.668

Substitute value of x in equation [2], to get z

(44.8)^2=x^2+z^2

(44.8)^2=(23.668)^2+z^2

2007.04-560.174224=z^2

z=sqrt{1446.865776}

z=38.06

We know, BD=z+z

BD= 38.06+38.06

BD= 76.12

Nearest to whole number BD=76 cm

Therefore, Option c – BD=76 cm is correct.

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Please help! Which plot shows the greater interquartile range ?

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Number of cans donated the first week = 132
Number of cans donated the second week = 146
Number of cans donated the third week = c, where c is some positive number

Add up the three values (132, 146, and c) to get 132+146+c. I’m choosing not to simplify because each answer choice hasn’t simplified either.

The expression of 132+146+c represents the total amount of cans donated for weeks 1 through 3. We want “at least 325 cans”, so that means the expression is 325 or larger. That translates to this inequality

132+146+c ge 325

The “greater than or equal to” sign indicates we want that sum to be 325 or larger.

Now we solve for c

132+146+c ge 325
278+c ge 325
278+c-278 ge 325-278
c ge 47

So the amount of cans donated for week three needs to be 47 or larger. If you collect exactly 47 cans for week three, then you meet the goal of 325 total cans. If you collect more than 47 cans for week three, then you exceed the goal of 325 total cans.

————————————

In summary we have the inequality 
132+146+c ge 325
which solves to
c ge 47

Meaning that the answer is choice D

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After scientists discovered electrons and protons, what led them to believe there was a third subatomic particle? A. Elements have molar masses that are numerically equal to their atomic mass. B. The mass of an atom’s nucleus is greater than the combined masses of an atom’s protons. C. The mass of an atom is greater than the combined masses of an atom’s protons and electrons. D. Elements have isotopes that have the same atomic number but different atomic mass numbers.

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The unknown of this problem is the experimental percent of water in the compound in order to remove the water of hydrogen, given the following:

Mass of crucible, cover and contents before heating                               23.54 g
Mass of empty crucible and cover                                                            18.82 g
Mass of crucible, cover, and contents after heating to constant mass     20.94 g

In order to get the answer, determine the following:

Mass of hydrated salt used                          = 23.54 g – 18.82 g = 4.72 g
Mass of dehydrated salt after heating          = 20.94 g – 18.82 g = 2.12 g
Mass of water liberated from salt                 = 4.72 g – 2.12 g = 2.60 g

Then solve the percent of water in the hydrated salt by:

% water = (mass of water / mass of hydrated salt) x 100
% water = 2.60 g / 4.72 g x 100
% water = 55.08 % in the compound 

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Which statement defines reduction potential when considering a pair of half-cell reactions? The half-reaction with the greater SRP has a greater tendency to gain electrons. The half-reaction with the lower SRP has a greater tendency to gain electrons. If each half-reaction has an SRP greater than zero, there will be two reduction reactions. If each half-reaction has an SRP less than zero, there will be two oxidation reactions.

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Answer:

The coefficient of CO₂ is 5.

Explanation:

    Balancing the reaction:

___C₅H₁₂ + ___O₂ → ___CO₂ + ___H₂O

There are 5 C in the left side, so we put 5 on the right side:

___C₅H₁₂ + ___O₂ →  5CO₂ + ___H₂O

There are 12 H in the left side, so we put 6 as the coefficient of H₂O:

___C₅H₁₂ + ___O₂ →  5CO₂ + 6H₂O

Finally, there are 16 O in the right side, so we put 8 as the coefficient of O₂

___C₅H₁₂ + 8O₂ →  5CO₂ + 6H₂O

The coefficient of CO₂ is 5.

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Which fraction has a value greater than 0.4

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Which fraction has a value greater than 0.4

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The sum of two numbers is 47. The greater number is 9 more than the smaller number. Which equation can be used to solve for the smaller number?

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Answer:

Number of copy machines must be made to minimize the unit cost=160.

Step-by-step explanation:

We are given that the unit cost function C ( the cost in dollars to make each copy machine)

If machines are made =x

Then the unit cost function is given by

C(x)=0.8x^2-256x+25939

We have to find the number of copy machines for  minimize the unit  cost

C(x)=0.8x^2-256x+25939

Differentiate with respect to x

Then we get

frac{mathrm{d}C}{mathrm{d}x}=1.6x-256 ……(equation I)

To find the value of x then we susbtitute frac{mathrm{d}C}{mathrm{d}x} is equal to zero

frac{mathrm{d}C}{mathrm{d}x}=0

1.6x-256=0

1.6x=256

x=frac{256}{1.6}

By using division property of equality

x= 160

Again differentiate the equation I with respect to x then we get

frac{mathrm{d}^2 C}{mathrm{d}^2 x}=1.6 >0

Hence, the unit cost is minimize for x=160

Therefore, the number of copy machines must be made to minimize the unit cost =160

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