# lee

Most popular questions and responses by lee-
## algebra

Could someone check my work; 1. Generate the first five terms in the sequence using the explicit formula. yn = –5n – 5 –30, –25, –20, –15, –10 30, 25, 20, 15, 10 –10, –15, –20, –25, –30(my answer) 10, 15, 20, 25, 30 2. What is the

*asked on February 3, 2013* -
## algebra

Can someone check my answers on exploring conic sections? 1. Graph x2 + y2 = 9. What are its lines of symmetry? Every line through the center is a line of symmetry. The y-axis and the x-axis are lines of symmetry.( my choice) Every line through the center

*asked on February 19, 2013* -
## physics

A wave of amplitude .30 m interferes with a second wave of amplitude .20 m. What are the largest and smallest displeacements that can occur? What type of interference is demonstrated by each displacement?

*asked on September 8, 2009* -
## algebra

what is the simpliest form of the equation 3 sqrt 750 + 3 sqrt 2058 - 3 sqrt 48 possible answers 14 3sqrt6 17.5 3sqrt6 33 3sqrt6 10 3sqrt6

*asked on December 2, 2012* -
## algebra

Can someone check my answers please and if Im wrong please explain. 1) graph 4x^2+4y^2=64. what are the domain and range? domain;all real numbers range;-4

*asked on February 22, 2013* -
## Social Studies

How were the economies of the Nothern and Southern states different? How were they the same?

*asked on November 3, 2016* -
## algebra

Generate the first five terms in the sequence using the explicit formula; Cn=12n-11 Please explain

*asked on February 5, 2013* -
## algebra

Which steps transform the graph of y=x^2 to y=-2(x-2)^2+2. a) translate 2 units to the left translate down 2 units stretch by factor 2 b)translate 2 units to the right translate up 2 units stretch by the factor 2 c)reflect across the x-axis translate 2

*asked on October 29, 2012* -
## chemistry

Write the equation for the decomposition of water into its elements. Phase symbols are not graded.

*asked on April 17, 2013* -
## algabre

the speed of the current in a river is 6 mph a ferry operator who works that part of the river is looking to buy a new boat for his business everyday his route takes him 22.5 miles against the current and back to his deck and he needs this trip in a total

*asked on January 24, 2013* -
## Trigonometry

The populations, P, of six towns with time t in years are given by: I) P=1000(1.08)^t II) P= 600(1.12)^t III) P = 2500(0.9)^t IV) P=1200(1.185)^t V) P=800(0.78)^t VI) P=2000(0.99)^t a. Which towns are growing in size? Which are shrinking? b. Which town is

*asked on January 15, 2013* -
## algebra

suppose the polynomial function below represents the power generated by a wind turbine where x represents the wind speed in meters per second and y represents the kilowatts generated interpret f(10) f(x)=0.08x^3+x^2+x+0.26

*asked on November 12, 2012* -
## algebra

What is the product in simpliest form state any restrictions on the variable x^2+7x+10 / x+3 times x^2-3x-18 / x^2+x+2 I got (x+5)(x-6) / x-1, not sure on restrictions either 1 or -3,-2, and 1

*asked on January 30, 2013* -
## algebra

Have a few questions can someone please help me figure them out? 1) You research the cost of a gallon of gasoline over several years to look for a trend. The table shows your data. What is a line of best fit for the data? Based upon these prices, how much

*asked on January 3, 2013* -
## algebra

For the function f(x)=(7-8x)^2, find f^-1. Determine whether f^-1 is a function.

*asked on December 10, 2012* -
## algebra

please explain the step for this I have no idea. the speed of the current in a river is 6 mph a ferry operator who works that part of the river is looking to buy a new boat for his business everyday his route takes him 22.5 miles against the current and

*asked on January 29, 2013* -
## economics

can someone explain the relationship between consumer expectations and economic performance? Could use some help.

*asked on October 31, 2012* -
## algebra

A parabolic microphone has a cross-section in the shape of a parabola. The microphone is placed at the focus of the parabola. If the parabola is 20 inches wide and 5 inches deep, how far from the vertex should the microphone be placed? Can someone please

*asked on March 1, 2013* -
## algebra

what is the quotient in simpliest form state the restrictions on the variable z^2-4/z-3 divided z+2/z^2+z-12 i got z^2+2x-8 but am not sure of the restrictions maybe 3,-2

*asked on January 30, 2013* -
## algebra

A few more question Id like for someone to check please. 1) what are the vertex, focus, and directrix of the parabola with the given equation? x^2-8x-28y-124=0 vertex (4,-5) focus (0,7) directrix y=-12 2) write an equation of a circle with given center and

*asked on February 22, 2013* -
## I need help, I'm stuck...what is the correct answe

The table below shows the scores of a group of students on a 10-point quiz. Test Score Frequency 3 0 4 2 5 2 6 1 7 2 8 3 9 0 10 4 The mean score on this test is: 6.5 The median score on this test is: 7.5

*asked on October 24, 2016* -
## algebra

I have 3 questions I need help with. 1) what is the 15th term of the sequence 81,27,9,... 2) what is a possible value for the missing term of the geometric sequence 39,_,975,_ 3) what is the sum of the finite arithmetic series (-5)+0+5+10+..+65

*asked on February 12, 2013* -
## english

Has anyone read Kate Chopin is so could you check my answers? 1. When Mrs. Sommers leaves to go shopping, she forgets to take money. her daughter Mag’s size. her preferred store. to eat lunch.***** 2. The resolution of a story should build to the climax

*asked on November 18, 2012* -
## chemistry

If a solution containing 34.576 g of mercury(II) perchlorate is allowed to react completely with a solution containing 10.872 g of sodium sulfate, how many grams of solid precipitate will be formed?

*asked on April 19, 2013* -
## algebra

Really need help with one problem. The table shows the annual consumption of cheese per person in the United States for selected years in the 19th century. What cubic model best fits this data? Year Pounds Consumption 1915 4.156 1922 4.857 1946 7.16 1991

*asked on November 28, 2012* -
## Chemistry

Which of the following gases is the best choice for inflating a balloon that must remain inflated for a long period of time? a) argon b) hydrogen c) neon d) oxygen

*asked on April 13, 2010* -
## algebra

Wind farms are a source of renewable energy found around the world. The power P(in kilowatts) generated by a wind turbine varies directly as the cube of the wind speed v(in meters per second) If a turbine generates 700kW in a 5m.s wind, how much power does

*asked on January 4, 2013* -
## chemistry

Write the balanced chemical equation for the Habor-Bosch process, that is, the combination of nitrogen and hydrogen to form ammonia, NH3. Phase symbols are optional.

*asked on April 17, 2013* -
## algebra

Simplify the rational expression state any restrictions on the variable t^2+2t-24 / t^2-36 I got t-4 / t-6, but Im not sure of the restrictions whether its 6 or -6,6

*asked on January 30, 2013* -
## algebra

a hyperbola has vertices (+-5,0) and one focus (6,0) what is the standard form equation of the hyperbola.

*asked on February 25, 2013* -
## Chemistry

Enough of a monoprotic acid is dissolved in water to produce a 0.0169 M solution. The pH of the resulting solution is 2.68. Calculate the Ka for the acid.

*asked on April 21, 2012* -
## statistics

Consider a binomial experiment with 20 trials and probability 0.45 on a single trial. Use the normal distribution to find the probability of exactly 10 successes. Round your answer to the thousandths place.

*asked on August 2, 2011* -
## Physics

In the series circuit, if the current through R1 is 1.5 A, what is the current through R2? 1. Unable to determine 2. 1.5 A 3. 1 A 4. 0.5 A 5. 3 A

*asked on February 24, 2016* -
## algebra

identify the graph of 4+2i if someone could explain to me how you decide which way to go on the graph as far as imaginary and real axis

*asked on November 3, 2012* -
## history

What led to the development of one-crop economies? A. Joint-stock companies found profitability in monopolizing one cash crop. B. One-crop economies were developed through slash-and-burn agricultural practices. C. Colonies sought to reduce costs by

*asked on July 27, 2018* -
## algebra

What is the expression in factored form? 2x^2+16x+24

*asked on November 6, 2012* -
## algebra

Rewrit the equation in vertex form. Name the vertex and y-intercept. y=3/5^2+30x+382 I need some help do not understand these type of problems.

*asked on October 31, 2012* -
## algebra

please explain the step for this I have no idea. the speed of the current in a river is 6 mph a ferry operator who works that part of the river is looking to buy a new boat for his business everyday his route takes him 22.5 miles against the current and

*asked on January 29, 2013* -
## books

Reread the nightmare scene near the end of The Night Thoreau Spent in Jail and describe the main characters and primary events in Henry’s nightmare. Also, discuss this scene in particular, and the play in general, as a work of protest against war itself.

*asked on November 12, 2012* -
## chemistry

A gas has a volume of 590mL at a temperature of -55.0C What volume will the gas occupy at 30.0C Can someone help me?

*asked on January 31, 2013* -
## algebra

What are the zeros of the function? what are their multiplicities f(x)=4x^3-20x^2+24x numbers -3,-2,and 0 are multiplicity of 1 numbers 3,2,and 0 are multiplicity of 1

*asked on November 18, 2012* -
## algebra

Robin bought a computer for $1,250. It will depreciate, or decrease in value, by 10% each year that she owns it. a) Is the sequence formed by the value at the beginning of each year arithmetic, geometric, or neither? Explain. b) Write an explicit formula

*asked on February 12, 2013* -
## Math

A community center has 3 tennis teams and 5 basketball teams. No one is on both teams. How many athletes are there? Tennis---2 players Basketball---5 players Softball---10 players

*asked on February 11, 2013* -
## algebra

You live near a bridge that goes over a river. The underside of the bridge is an arch that can be modeled with the function y=-0.000475x^2+0.851x, where x and y are in feet. How high above the river is the bridge(the top of the arch)? How long is the

*asked on October 20, 2012* -
## Bus math

Bari Jay, a gown manufacturer, received an order for prom dresses from China. Her cost is $40 a gown. If her markup based on selling price is 76%, what is the selling price of each gown?

*asked on October 13, 2017* -
## algebra

A conic section has the equation x^2+y^2+12x+8y=48. Determine the following; type of conic, domain and range, axes of symmetry, and center.

*asked on March 1, 2013* -
## algebra

What is the vertex form of the equation? y=-x^2+12x-4

*asked on November 6, 2012* -
## algebra

A biologist took a count of the number of migrating waterfowl at a particular lake, and recounted the lakes population of waterfowl on each of the next six weeks. Find the function that models the data as a function of x, the number of weekx. Use the model

*asked on October 25, 2012* -
## chemistry

Balance the following redox reaction by inserting the appropriate coefficients. H^+ +CrO4^2- +NO 2^- =Cr^3+ +H2O+NO3^-

*asked on April 19, 2013* -
## basic word & excel

6. _______ data updates in your destination document if there are changes to the source data. A. Linked B. Integrated C. Embedded D. Field

*asked on December 12, 2017* -
## algebra

find an equation that models the path of a satelite if its path is a hyperbola, a=55,000km and c=81,000km assume that the center of the hyperbola is the origin and the tranverse axis is horizontal

*asked on February 25, 2013* -
## Math

25% of my candies are chocolate candiea i had 25 chocolate candies. How many candies did i have altogether?

*asked on November 17, 2015* -
## history

Question: 8) What impact did the Columbian Exchange have on imperialism? A) The popularity of Columbian goo... 8) What impact did the Columbian Exchange have on imperialism? A) The popularity of Columbian goods throughout Europe built American empires. B)

*asked on July 27, 2018* -
## chemistry

Baking soda is sodium bicarbonate, NaHCO3, and vinegar is primarily acetic acid, HC2H3O2. When baking soda is added to vinegar, the resulting reaction produces a tremendous amount of gas, as shown in this video. Complete this equation for the reaction of

*asked on April 19, 2013* -
## agebra

Can someone please help me.. find an equation that models the path of a satelite if its path is a hyperbola, a=55,000km and c=81,000km assume that the center of the hyperbola is the origin and the tranverse axis is horizontal

*asked on February 27, 2013* -
## algebra

Write a recursive formula for the sequence formula 15,26,48,92,180,.. then find the next term. can someone please help me

*asked on February 5, 2013* -
## algebra

What is a quartic function with only the two real zeroes given? x=-1 and x=-3 Would someone please explain

*asked on November 26, 2012* -
## Math

A carton contains 1 8/9 liters of apple juice. Rosalia drinks 1/6 liter of the juice every day. How much apple juice is left in the carton after a week?

*asked on December 9, 2014* -
## algebra

Can someone help with inverse relations and functions? is relation t a function? Is the inverse t a function? chart looks like: x 0 2 4 6 y -10 -1 4 8 If someone could please explain this problem

*asked on December 10, 2012* -
## Basic Word and Excel

What would be a situation in which you could use an Excel chart to present your data? a.)determining what percentage of customer 101 buys product A, and what percentage of the same customer buys product B b)Compiling survey questions and answers from both

*asked on December 5, 2017* -
## economics

Could someone check my work? Please When the government attempts to cover large deficits by creating more money, what is the probable result called? government borrowing hyperinflation (my choice) excess currency full employment 2. What is one of the major

*asked on November 6, 2012* -
## english

How would you briefly describe Poe's requirement for the short story genre?

*asked on October 9, 2012* -
## Physics

A person driving her car at 45km/h approaches an intersection just as the traffic light turns yellow. She knew that the yellow light lasts only 2s before turning red,and shi is 28m away from the near side of the intersection. Should she try to stop,or

*asked on September 17, 2016* -
## algebra

Archers need to use arrows that do not bend easily. The table shows how the weight of an arrow affects its spine or the distance the center of the arrow bends when a certain constant weight is attached. Graph the data in the table to find a linear and

*asked on January 8, 2013* -
## algebra

Can someone please help... a hyperbola has vertices (+-5,0) and one focus (6,0) what is the standard form equation of the hyperbola.

*asked on February 27, 2013* -
## chemistry

Write the net ionic equation (including phases) that corresponds to Fe(ClO4)2(aq)+Na2S(aq)=FeS(s)+2NaClO4(aq)

*asked on April 19, 2013* -
## algebra

what is a quartic function with only the two real zeros given x=5 and x=1 y=-x^4-6x^3+6x^2-6x+5 y=x^4+6x^3-6x^2-5 y=x^4-6x^3+5x^2-6x+6 y=x^4-6x^3+6x^2-6x+5 can someone explain

*asked on November 14, 2012* -
## algebra

what is the equation in standard form of a parabola that contain the following points? (-2,-20),(0,-4),(4,-20) Please Help

*asked on October 29, 2012* -
## Poetry

What is rhyme scheme? (1 point_ The stressed and unstressed syllables within a poem a type of poetry that has no rhyme, but no rhythm (or patter of lines that rhyme within a poem) a poem that has a rhyming meter a poem consisting of ten syllables I think

*asked on September 24, 2015* -
## algebra

Coulld someone take the time and check my answers please. 11) without graphing is the system independent, dependent, or inconsistent? y=-x+5 -3x-3y=-15 (my answer; dependent) 12) your club is baking vanilla and chocolate cakes for a bake sale. they need at

*asked on January 3, 2013* -
## algebra

The table shows the amount of milk that wisconsin dairy farms produced from 1939 to 1962 which linear model best fits this data? year milk produced(in billions of lbs 1939 12 1962 15 2005 21

*asked on January 4, 2013* -
## algebra

a polynomial equation with rational coefficients has the roots 7+sgrt3, 2-sgrt6 find two additional roots 7-sgrt3, 2+sgrt6 3-sgrt7, 6+sgrt2 7+sgrt3, 2-sgrt6 3+sgrt7, 6=sgrt2 could someone help

*asked on November 14, 2012* -
## algebra

Skip designs tracks for amusement parks. For a new design the track will be ellipitical if the ellipse is placed on a large coordinate grid with its center at (0,0) the equation x^2/2500+y^2/8100=1 model the path of the park.The units are given in yards,

*asked on March 1, 2013* -
## physics

A child has a temperature of 101◦F. If her total skin area is 13 m2, find the en- ergy loss per second due to radiation, assum- ing the emissivity is 1. The Stefan-Boltzmann

*asked on October 21, 2012* -
## math

calculate the resistances of (a) 100-watt 120-volt incandescent lamp, (b) a 750-watt 115-volt toaster, (c) a 1300 watt 110-volt portable iron.

*asked on August 24, 2014* -
## Chemistry

The Ksp values of BaSO4 and SrSO4 are 1.1x10^-10 and 3.8x10^-7 respectively. Calculate the concentrations of Ba2+, Sr2+, and SO4 2- in a solution that is saturated with BaSO4 and SrSO4.

*asked on November 18, 2014* -
## physics

If an atom has an electron in the n = 5 state with ml = 3, what are the possible values of l?

*asked on November 24, 2014* -
## physics

A child has a temperature of 101◦F. If her total skin area is 13 m2, find the en- ergy loss per second due to radiation, assum- ing the emissivity is 1. The Stefan-Boltzmann constant is 5.6696 × 10−8 W/m2 · K4 . (As- sume the room temperature is

*asked on October 21, 2012* -
## algebra

What is the equation in standard form, of a parabola that models the values in the table? x f(x) -2 4 0 -6 4 70

*asked on January 4, 2013* -
## Cal 1

The top and bottom margins of a poster are each 12 cm and the side margins are each 8 cm. If the area of printed material on the poster is fixed at 1536 cm^2, find the dimensions of the poster with the smallest area.

*asked on December 8, 2010* -
## algebra

can someone explain the benefits of writing a quadratic equation in vertex form and benefits of writing a quadratic equation in standard form? Name specific methods you can use while working with one form or the other. Any help will be appreciated.

*asked on November 5, 2012* -
## Geometry

A red cross helicopter takes off and flies 75km at 20degree south of west. There it's drops off some relief supplies. It then flies 125 km at 10 degree west of north to pick up three medics. A. Make an accurate drawing of the two vectors decribed? B. draw

*asked on March 10, 2015* -
## algebra

what is the simpler form of the radical expressio. 4 sqrt 2401x^12y^16 I know its 7x^3y^4 but not sure if looks like 7[x^3[y^4 7x^3[y^4

*asked on January 4, 2013* -
## Algebra

Can someone please help me with a couple questions? 1)The probability that a dessert sold at a certain cafe contains chocolate is 73%. The probability that a dessert containing chocolate also contains nuts is 25%. Find the probability that a dessert at

*asked on March 24, 2013* -
## algebra

Can someone please explain and help me with this problem. 4. The table shows the annual consumption of cheese per person in the United States for selected years in the 20th century. Year Pounds Consumed 1908 5.027 1923 8.768 1960 12.29 1981 15.485 What

*asked on November 14, 2012* -
## algebra

You throw a rock off the balcony overlooking your backyard the table shows the height of the rock at different times use quadratic regressin to find a quadratic model for this data. time 0 1 2 3 4 5 height 24 44.2 54.8 55.8 47.2 29 would someone explain

*asked on October 29, 2012* -
## algebra 2

you are making gift baskets.each basket will contain three different kinds of candles: tapers,pillars, and jar candles. Tapers cost $1 each, pillars cost $4 each, and jar candles cost $6 each. You put 8 candles costing a total of $24 in each basket, and

*asked on October 14, 2009* -
## Physics

A particle leaves the origin with a velocity of 7.2 m/s in the positive y direction and moves in the xy plane with a constant acceleration of (3.0 – 2.0 ˆi ˆj ) m/s2. At the instant the particle moves back across the x axis (y = 0), what is the value

*asked on September 29, 2008* -
## calculus

the curve with equation 2(x^2+y^2)^2=9(x^2-y^2) is called a lemniscate. find the points on the lemniscate where the tangent is horizontal.

*asked on October 30, 2011* -
## social studies

How does geography affect development of a city

*asked on February 19, 2011* -
## Calc

A sample of a radioactive substance decayed to 93.5% of its original amount after a year. a) What is the half-life of the substance? ? years (b) How long would it take the sample to decay to 10% of its original amount? ? years

*asked on November 8, 2009* -
## english

How would you briefly describe what the lerary movement Romanticism valued?

*asked on October 9, 2012* -
## Chemistry

what is the pressure exerted by 32g of 0xygen(O2) in a 22.0 L container at 30.0`C? What Law do I use?

*asked on April 13, 2010* -
## chemistry

N2 (g) + 3H2 (g) → 2NH3(g) ΔH = -92.2 kJ How much heat (in kJ) is released if 13.3 g of hydrogen is consumed to make ammonia? (Give your answer as a positive number, since you cannot release negative energy.)

*asked on October 14, 2017* -
## chemistry

Determine the quantity (g) of pure CaCl2 in 7.5 g of CaCl2•9H2O.

*asked on October 27, 2015* -
## physics

is the force of gravity stronger on a piece of iron than on a piece of wood, if both have the same mass?

*asked on November 7, 2008* -
## algebra

Can anyone help explain how to work this problem out? One factor in flood safety along a levee is the area that will absorb water should the levee break. the coordinates that make up the boundry area are (0,0),(2.8,2.1)and(4.3,4.4) what is the area of the

*asked on April 2, 2013* -
## troy Academy

which of the following statements is the best supported by the new studies

*asked on May 8, 2014* -
## algebra

which matrix represents the system of equations below. -2x-7y=3 7x-6y=12 not sure how to figure this out.

*asked on January 2, 2013* -
## books

Ambrose Biercs Could someone that has read the story check my work? 1. The gray-clad soldier who tells Farquhar about the bridge is on his way to the bridge. a Federal scout. ****** frightened of being caught and hanged. planning to burn the bridge. 2.

*asked on November 16, 2012*