Macy
Most popular questions and responses by Macy
algebra
Rectangular pyramid has a base area of x^2+3x10/2x square centimeters and a height of x^23x/x^25x+6 centimeters. Wright a rational expression to describe the volume of the rectangular pyramid
asked on April 4, 2012 
Statistics and Probability
Winning the jackpot in a lottery requires that you select the correct three numbers between 1 and 51 and in a another separate drawing you must select the correct single number between 1 and 15. Find the probability of winning the jackpot The probability
asked on October 13, 2014 
Science
This graph shows the changes in two populations of herbivores in a grassy field. In the y axis it says number of organisms in the x axis it says Time In the graph A is decreasing , B is increasing, At first they were steady then slightly A decreased and B
asked on January 3, 2012 
physics
A man holds a 194N ball in his hand, with the forearm horizontal (see the figure). He can support the ball in this position because of the flexor muscle force , which is applied perpendicular to the forearm. The forearm weighs 24.7 N and has a center of
asked on July 16, 2013 
Math
A satellite is launched into orbit 200 kilometers above the Earth.The orbital velocity of a satellite is given by the formula v=√GmE/r, where v is the velocity in meters per second, G is a given constant, mE is the mass of Earth, and r is the radius of
asked on April 6, 2010 
Math
The value of a particular investment follows a pattern of exponential growth. You invested money in a money market account. The value of your investment t years after your initial investment is given by the exponential growth model a=2600e^.08t. How much
asked on January 9, 2015 
algebra 1
Decide which part of the quadratic formula tells you whether the quadratic equation can be solved by factoring. −b b2 − 4ac 2a Use the part of the quadratic formula that you chose above and find its value, given the following quadratic equation: 4x^2 +
asked on May 4, 2018 
Math Algebra
1/2(wh)=hn+5p Please help me with this if possible :)
asked on September 4, 2015 
math
Eve swam 80 laps of a swimming pool in one hour. What was the pace for each lap?
asked on November 1, 2015 
Statistics
Find the probability of winning a lottery with the following rule. Select the five winning numbers from 1,2...,23. (in any oder. No repeats) P(winning)= ?
asked on October 13, 2014 
Math
A phone company offers two monthly plans. Plan A costs $11 plus an additional $0.18 for each minute of calls. Plan B costs $18 plus an additional $0.13 for each minute of calls. For what amount of calling for the two plans cost the same? What is the cost
asked on December 6, 2015 
Statistics
Find the probability of winning the lottery Select the six winning numbers from 1 to 34. (in any order, no repeats) P(winning)= ?
asked on October 20, 2014 
Probability
Must appoint 5 different members. There are 17 who are qualified. How many different ways can they be appointed?
asked on October 13, 2014 
Consumer Math
Will you please check my answers? 1. Mary Stevens earns $6 an hour at her job and is entitled to timeandahalf for overtime, and double time on holidays. Last week she worked 40 hours of regular time, 6 1/2 hours of overtime, and 8 hours of holiday time.
asked on January 14, 2013 
3rd grade math
Emma has 36 feet of fence. She wants to make the largest rectangular area possible for her rabbit to play in. What length should she make each side of the rabbit pen? Show your work and explain how you found the largest area.
asked on November 18, 2010 
Consumer Math
Will you please check my answers? 1. Your employer has 600 business cards printed for you, and you give away 280 of them. To the nearest hundredth, what percent of the cards is left? A. 18.75% B. 53.33% C. 46.67% D. 21.43% 2. The LCD for the fractions 1/3,
asked on January 14, 2013 
Statistics
A linear regression of price on square footage of homes for sale found the equation price = 30275 + 144*sqft. In this equation, the slope means A. a house with no square feet will cost $30,275. B. for every 144 square feet, average price goes up $30,275.
asked on February 15, 2015 
Algebra 1
The amount a spring will stretch S is proportional to the force (or weight) F attached to the spring . If a spring stretches 8.9 inches when 20 pounds are attached how far will it stretch when 70 pounds are attached? A:3.54 inches B:2.54 inches C:31.15
asked on November 9, 2013 
GLOBAL HISTORY
how did the black death lead to social disorder
asked on January 10, 2012 
Science(grade 9)
when two different species live in the same area and use the limited resources, which of the following will occur? (1) competition (2) succession (3) parasitism (4) industrialization is it succession ?
asked on January 3, 2012 
maths
A 50g chocolate bar costs 60p. how much does each gram cost?
asked on September 25, 2018 
Math
Will you please check my answers? 1. Mary Stevens earns $6 an hour at her job and is entitled to timeandahalf for overtime, and double time on holidays. Last week she worked 40 hours of regular time, 6 1/2 hours of overtime, and 8 hours of holiday time.
asked on January 14, 2013 
Physics
A parallel plate capacitor has a rectangular plates with length 5cm and width 3cm. They are separated by a distance 12m and hooked up to a 20V battery A.) what is the area of each plate in m^2 B.) assuming nothing else is present on the circuit what is the
asked on February 25, 2015 
Biology
Will you please check my answers? 1. Singlecelled organisms that do not have a membranebound nucleus are called A. organelles. B. prokaryotes. C. Golgi bodies. D. eukaryotes. 2. In cells, a form of active transport is A. a sodiumpotassium pump. B.
asked on July 12, 2013 
Science
What effect would letting a crucible and its contents dry overnight before finding their mass have on the value for the percent water in a hydrate?
asked on December 10, 2007 
Living environment
A characteristic shared by both predators and parasites is that they 1. feed on decomposing plant material 2. capture and kill animals for food 3. live inside their hosts 4. attack a living food source the answer is 2 right
asked on January 3, 2012 
Statistics
An instructor asked students to name their favorite color. An appropriate graph to display the data is a... A) histogram B) pie chart C) time plot
asked on January 18, 2015 
Math
The function of g += t^2t represents the total number of games played by t teams in a sports league in which each team plays each of the other teams twice. The Metro League plays a total of 132 games. How many teams are in the league?
asked on April 19, 2010 
math
Justine's typing speed is 36 wpm (words per minute). She finished a job in 5 hours. How long would the same job have taken her if she typed 48 wpm?
asked on November 1, 2015 
Physics
Find the work that should be done to increase the distance between two point charges with the charges of 5nC and 10nC by 5cm. The initial distance between the charges is 15cm.
asked on February 2, 2015 
Physics
Find the potential energy of a system often point charges. 7nC and 2nC separated by 0.03m
asked on February 2, 2015 
maths
which name quadrilateral cannot be built from exactly two isosceles triangles?
asked on October 11, 2018 
english
In her essay "what is poverty?" jo parker goodwin tries to convince the reader to help the poor. What 3 strategies did she use to achieve her goal?
asked on November 19, 2008 
maths
10 men can build a house in 6 months, how many men would it take to build the house in 4 months?
asked on September 25, 2018 
Physics
Suppose you have a 5nC charge T the origin and a 2nC charge at x=5m. Find the location on the x axis where the electric field is 0. (Find finite coordinate location)
asked on February 1, 2015 
maths
Russel, Sarah, and Terry share money in the ratio 2:5:8. Russel gets 120 pounds less than Terry. Workout how much each get.
asked on October 1, 2018 
Social Studies
How can consumer's expectations reduce and increase demand? I really need help with this question. Thanks Macy:))
asked on April 27, 2009 
Data
A manufacturing company produces lenses for digital cameras. The defect rate for each lense is 9%. Which of the following testing procedures will result in more production stops? Procedure A: The company will test 10 lenses per hour, and stops production
asked on June 22, 2018 
Physics
Suppose you have a 3 C charge at (1,0) m and a 3 C charge at (1,0) m. Find (a) the electric field at the point (0,3), and (b) the electric force on a charge of 3 nC placed at (0,3).
asked on January 29, 2015 
IMPERIALISM AND THE PROGRESSIVE ERA
_______ pioneered the field of corporate public relations. A. Henry Ford B. Ivy. L. Lee C. Samuel Gompers D. Margaret Robins
asked on October 9, 2012 
algebra
Which has a larger perimeter ,a 20inch by 32inch rectangle or a 28inch square
asked on January 30, 2012 
Algebra
A basketball team has 12 more games to play. They have won 25 of the 36 games they have played. How many more games must they play in order to finish with a 0.750 record?
asked on August 10, 2010 
Algebra
The ratio of the weight of an object on Mars to the weight of an object on Earth is 0.4 to 1. How much would a 120lb astronaut weigh on Mars?
asked on August 9, 2010 
maths
8 cleaners can clean an office block in 3 hours. If two cleaners are off ill,how long will it take the rest to clean the block.
asked on October 1, 2018 
Calculus
Find the volume of the solid bounded below by the parabloid z = x^2 + y^2 and above by the plane 2x + z = 3
asked on April 10, 2016 
Chemistry
What would be the equation for NaOH + H2SO4 be? Would the porducts be H2O + NaHSo4 or H2O + Na2SO4? If it's the second one, which I think it is, where does that extra H go?
asked on October 13, 2015 
Physics
An infinite,insulating sheet has a surface charge density 3.14C/m^2 the height is 12km A.) find the surface area of the Gaussian surface B.) find the total charge C.) find the total electric flux D.) use Guass's law to find the electric field at a height
asked on February 25, 2015 
Statistics
I took a large sample of households in a city, and based on that, estimate the standard deviation of the income for all households in the city is $800. In order to make a desired conclusion about the income for all the households in the city, I want the
asked on February 24, 2015 
Anthropology
what does this statement mean : " the purpose of anthropology is to make the exotic familiar and the familiar exotic".
asked on January 24, 2014 
IMPERIALISM AND THE PROGRESSIVE ERA
_______ pioneered the field of corporate public relations. A. Henry Ford B. Ivy. L. Lee C. Samuel Gompers D. Margaret Robins
asked on October 9, 2012 
Info literacy
Which of the following sets of Dewey Decimal call numbers is in the correct order? A. 010.1 ABR, 004.15 KWA, 100.01 PRO, 100.1 BLU B. 004.15 KWA, 010.1 ABR, 100.01 PRO, 100.1 BLU C. 100.1 BLU, 010.1 ABR, 004.15 KWA, 100.01 PRO D. 100.01 PRO, 100.1 BLU,
asked on August 25, 2012 
Math
Need help with the below math please tell how you could use a number line to determine which of two numbers is greater.
asked on September 8, 2011 
Algebra
(x+5)^2 (x5)^2= Simplify. Help please :)
asked on September 4, 2015 
Math
I need help with these few questions on my homework please :) 1. How much money would you need to pay to receive a payout annuity of $8,503.05 annually for 10 years, assuming your money earns 7.5% compounded annually? Assume that your payments increase
asked on July 2, 2015 
Physics
A long insulating wire has a uniform charge density 7nC/m and r=3m away from the wire A.) surface area of the side of the Gaussian surface B.) find total charge enclosed by the Gaussian surface C.) find total electric flux D.) use Guass's law to find the
asked on February 25, 2015 
Statistics and Probability
I took a large sample of households in a city, and based on that, estimate the standard deviation of the income for all households in the city is $800. In order to make a desired conclusion about the income for all the households in the city, I want the
asked on February 24, 2015 
Biology
If the number of ___ in an atom is changed, an ion will be produced. a)proton b)neutron c)electron Could be multiple answers
asked on February 9, 2015 
Psychology
The areas of the hemisphere involved in speech and language tend to be large in ____. The areas of the parietal lobe involved in visuospacial processing tend to be larger in ____ a) women, women b) men, men c) men, women d) women, men
asked on December 4, 2014 
Psych
The areas of the hemisphere involved in speech and language tend to be large in ____. The areas of the parietal lobe involved in visuospacial processing tend to be larger in ____ a) women, women b) men, men c) men, women d) women, men
asked on December 4, 2014 
Psychology
Because of differences in brain size, men tend to have slightly higher IQ scores than women TRUE OR FALSE
asked on December 4, 2014 
Psychology
Sexual dimorphism's are a) observable physical differences within single gender (e.g. tall men vs short men.) b) observable physical differences between the genders (e.g differences in mens and women's brains) c) assumed differences in the capacities of
asked on December 4, 2014 
Stats
In designing an experiment involving a treatments applied to 5 test subjects, researchers plan to use a simple random sample of 5 subjects from 28. How many different simple random samples are possible?
asked on October 13, 2014 
Physical Science
Johnson ran the 100 meter dash in 9.79 seconds. Calculate Johnson's average speed, in meters/second.
asked on September 22, 2014 
Physics
You take a 10 N block and lift it 1 meter vertically from the floor and then place it back down on the floor. How much work do you do during this motion? W = F x d x cos(theta) So lifting it does work and the lowering it does negative work won't that
asked on July 1, 2014 
grade 10 history
I have a SUPER HUGE project due called National History day and need lots of help with it, plz plz plz help!!!!!
asked on January 20, 2013 
Calculus
The line y=2x+b is tangent to the graph of y=x^1/2 at the point P=(a, a^1/2). Find P and determine b. I don't know what to do because they don't give you the x coordinate or anything to plug into the derivative. Help?
asked on September 20, 2012 
Calculus
Let R be the square region bounded by y = 2, x = 2, and the x and yaxes. When R is rotated about the xaxis, what is the volume of the resulting solid? What is the volume of the solid generated by rotating R about the yaxis?
asked on December 1, 2011 
Calculus
Let R be the region bounded by the xaxis, x = 5 and the curve y = x. This region is rotated around the xaxis. Find the volume of the resulting solid. (Note: R is a triangular region. The resulting solid has a simple shape. You may ask me if you are
asked on December 1, 2011 
Social Studies(child Labor)
i was seeing the poltical cartoon with the child labor exploiter and i need help interpet
asked on April 25, 2011 
chemistry
At l=530 nm:aCuSO4=7.544L/molcm aKMnO4= 3.645 L/molcm At l=800nm: aCuSO4=2.908L/molcm aKMnO4= 5.412L/molcm you use a celleith a path length of 1.0cm An unknown solution containing both CuSO4 and KMnO4 gave an absorbance reading of 0.679 at 530nm and an
asked on November 7, 2010 
math
What does "find the sum" mean? Please provide an example.
asked on August 30, 2010 
maths
Russel, Sarah and Terry share money in the ratio 2:5:8. Sarah has £120. Workout how much Russel and Terry get.
asked on September 25, 2018 
maths
If there are 10 numbers in a list where is the number that (a)halfway: (b)a quarter of the way: (c)three quarters of the way:
asked on September 21, 2018 
Data
A deck of cards has the aces and face cards removed, so that the numbered cards 210 remain. The player draws a card and is paid the value of the card. Each play costs $5. If you play the game 20 times, how much money would you expect to win or lose
asked on June 22, 2018 
Data
Determine the odds of choosing 4 aces when drawing 4 cards randomly from a regular deck of cards.
asked on June 22, 2018 
math
Find the asymptotes of the hyperbola. (x^2/36)  (y^2/49) = 1
asked on June 9, 2018 
math
if you have 69868859958 and 54647937347484 what would you do to turn that into a fraction
asked on May 1, 2017 
Biology
* what do organisms needs ? * how do organism secure what they needs ? * what are the attributes of life ?
asked on June 23, 2016 
Anthropology
Why is the scientific method the most accurate way that humans have developed?
asked on October 6, 2015 
Math
I need help with these few questions on my homework please :) 1. How much money would you need to pay to receive a payout annuity of $8,503.05 annually for 10 years, assuming your money earns 7.5% compounded annually? Assume that your payments increase
asked on July 2, 2015 
Algebra
Simplify each expression. 1.) (b^ 1/6)^3 b^1/6 2.) (2x^3)^2 (0.2x)^2 3.) (3^7)^2 (3^4)^3
asked on March 23, 2015 
Biology
The nucleus of an atom will NOT contain a)proton b)neutron c)electron could be multiple answers
asked on February 9, 2015 
Biology
The chemical reactivity of an atom is determined by the number of ___ present. a) proton b) neutron c) electron could be multiple answers.
asked on February 9, 2015 
Biology
A change in the number of ___ will change the mass of a given atom. a)proton b)neutron c)electron
asked on February 9, 2015 
Biology
if the number of ____ in an atom is changed, it is no longer the same element. a)proton b)neutron c)electron I'm thinking it's A, what do you think? It could be multiple answers, too.
asked on February 9, 2015 
Statistics
A survey or college students collected information on several variables: distance from home, age, major, gender, and class. The variable major is A) neither categorical nor numerical B) categorical C) quantitative Please help :)
asked on January 18, 2015 
Statistics
When ordering vinyl replacement windows, the following variables are specified for each window. Which of these variables is quantitative? A) window style double hung, casement, or awning B) window style single pane or double pane C) area of the window
asked on January 18, 2015 
Psychology
Individuals who naturally exhibit low levels of brain arousal and nervous system reactivity are more likely to: A. Score high in measures of agreeableness B. Score low in measures of agreeableness. C. Score low in measures of sensation seeking D. Score
asked on December 9, 2014 
Physical Science
Superfly, mass of only 1 gram, but capable of flying 840 million km/hr. meets a locomotive with a mass of 20,000 kg, traveling 40 km/hr. Who has the greater momentum? I know I need to convert mass to kg and covert momentum in KgKm/hr. I just don't know
asked on September 22, 2014 
Math
The base of a ladder leaning against a house is 30ft from the wall. if the ladder reaches 40ft high on the wall , how long is the ladder?
asked on January 7, 2013 
mc questions
Question # 1What is the magnitude of the momentum of a particle of mass 2 kg with a speed of 5 m/s? a)2.5 kg m/s b)10 kg m/s c)3 kg m/s d)7 kg m/s Question # 2If two objects with different masses collide and bounce off each other, the one with the
asked on May 30, 2012 
Social Studies(Thesis)
I read all about thesis and i made my thesis about child labor At what age is it appropriate for a child to have a job and a child should have a right to freedom. That is my thesis is it correct yes or no THANKS
asked on April 26, 2011 
Social Studies(child Labor)
i found this poltical cartoon why is this fat man eating kids i think because the fat man is just taking the kids rights and the fat man is making them work is this correct???
asked on April 25, 2011 
Social Studies PLease Help
i need some child labor political cartoons
asked on April 25, 2011 
ELA
I NEED A SUMMARY OF THE BOOK FRINDLE I CANT FIND THE BOOK PLEASE HELP AND CAN YOU JUST SUMMARIZE THE CHARACTERS
asked on April 23, 2011 
History
A policy on how to handle things within a state or country What is it?
asked on February 24, 2011 
MATH
regular pentagon Side length(inches) 6 If its 6 what is the perimeter( inches)
asked on February 23, 2011 
Math
The mean weight of 75 2nd graders is 55.7 lbs and the mean weight of 25 1st graders is 42.6 lb. What is the mean weight of the 100 children
asked on March 28, 2011 
Social Studies
This is just out of curiousity: Are butter and margarine substitute goods?
asked on April 27, 2009

Math
What is the answer ❓❓❓ Please help me 😫
posted on April 15, 2019