Thursday

February 11, 2016
Total # Posts: 204

**Algebra 2**

I had to solve this quadratic equation using the complete the square method. Did I do it correctly? The problem is 3x^2+18x+10= 0 (3x^2+18x+10)/3= 0/3 = x^2+6x+(10/3)=0 x^2+6x+(10/3)-(10/3)=0-(10/3) =x^2+6x= (-10/3( x^2+6x +(6/2)^2= -10/3+(6/2)^2 x^2+6x+9=(x+3)^2 (-10/3)+(9/1...
*October 18, 2015*

**chemistry**

how is .006421 expressed as two significant figures for density
*September 6, 2015*

**chemistry**

a block of metal has a width of 3.2cm, a length of 17.1cm, and a height of 3.7cm. its mass is 1.3kg. calculate the density
*September 6, 2015*

**Math Help**

In a certain state, each automobile license plate number consists of two letters followed by a four-digit number. To avoid confusion between "O" and zero and between "I" and one, the letters "O" and "I" are not used. How many distinct ...
*April 23, 2015*

**Math**

Thanks so much!
*March 24, 2015*

**Math**

I was thinking it was 1/10 but the only concern I have was when the questions says of the original lasagna.
*March 24, 2015*

**Math**

but shouldn't we include cameron? wouldn't this make 5 people?
*March 24, 2015*

**Math**

CAMERON AND HIS FAMILY WERE EATING LEFTOVER LASAGNA. There was 1/2 of the lasagna left. Cameron has one brother, one sister, and two parents. If everyone gets the same size pieces, what fraction of the original lasagna does each member of cameron's family receive?
*March 24, 2015*

**Physics**

A square coil with 30 turns has sides that are 18 cm long. When it is placed in a 0.31-T magnetic field, a maximum torque of 0.60 N⋅m is exerted on the coil. What is the current in the coil?
*March 3, 2015*

**law**

Does inspirational appeal always have to be engaged from a "top- down" approach? Can a leader develop a team where he becomes nearly "lateral" to his team at times that an inspirational appeal is employed, especially if it is genuine?
*February 15, 2015*

**law**

With the recent terrorists threats that the US has had for example the bombings at the Boston marathon, do you think the governement is going enough to protect the country from terrorism?
*February 15, 2015*

**law**

In your opinion what do you think is more important, civil liberties or security? Do you think that one outweighs the other?
*February 15, 2015*

**algebra**

The fraction of men in a population who are married is 2/3. The fraction of women in the population who are married is 3/5. What fraction of the population is single?
*February 11, 2015*

**Math**

I need to see how this is answered. 1. Lauren deposited $200 into her savings account with 1% interest rate compounded annually. After 4 years her balance was $208.12. Colby deposited $200 into a savings account that earned a 2% simple interest rate for 4 years, who had the ...
*February 10, 2015*

**physics**

Ok, so Intensity = Power/Area Intensity of sound expanding in a sphere will be I=Power/(4pi*radius^2) a) Power = 0.602, A= (4pi*(28.0/2)^2 Intensity = 0.602/2463.01 Intensity + 2.44E-4 Thats for one speaker. So multiply it by 2 for a total Intensity of 4.888E-4 b) For this we...
*December 5, 2014*

**law**

What is the context of the juvenile justice system
*November 16, 2014*

**law**

What is your perspective towards juvenile delinquency and school violence
*November 16, 2014*

**law**

illegal behavior
*November 16, 2014*

**law**

How do you feel about juvenile delinquency?
*November 16, 2014*

**law**

any state
*November 16, 2014*

**law**

Are the juvenile courts doing enough to change the treatment of juveniles in the justice system?
*November 16, 2014*

**law**

why you think so
*November 16, 2014*

**law**

But overrall Are parents and school management playing a suitable role to control increasing school violence?
*November 16, 2014*

**law**

Are parents and school management playing a suitable role to control increasing school violence? If not, what else can they do to help solve the problem of school violence?
*November 16, 2014*

**Advanced Algebra **

What is the inverse of each of the functions defined by the following equations, if the inverse exists. If the inverse does not exist for the largest possible domain, limit the domain so that the inverse will exist. In each case, give the domain and range of both the function ...
*November 15, 2014*

**Basic Statistics**

The Suva Energy Information Administration reported that 51.7% of homes in Sunnyville were heated by natural gas. A random sample of 200 homes found that 115 were heated by natural gas. Does the evidence supports the claim, or has the percentage changed? (Use a P-value method).
*October 15, 2014*

**Statistics**

A rental agency claims that the average rent that small-business establishments pay in Suvacity is $800. A sample of 10 establishments shows an average rate of $863. The standard deviation of the sample is $20. At α = 0.05,is there enough evidence to reject the agencies ...
*October 15, 2014*

**math**

Marianne buys 16 bags of potting soil that comes in 5/8 pound bags a.how many pounds of potting soil does she buy? b. if her father calls and says he needs 13 pounds of potting soil, how many additional bags should she buy?
*September 22, 2014*

**KIPP Believe **

The student-to-faculty ratio at a small college is 17:3. The total of students and faculty is 740. How many faculty members are there at the college? How many student?
*September 1, 2014*

**Math**

A car dealership employs 12 salesman and 28 mechanics. What is the ratio of salesman to mechanics?
*August 12, 2014*

**math**

Aislyn decides to research attendance at sporting events for her project. She finds data on average attendance per game at San Diego Chargers (CA) football games and at Dallas Cowboy (TX) football games. The table shows the average attendance for each team for the 2000 season ...
*May 27, 2014*

**english**

ugh i will just go elsewhere
*May 12, 2014*

**english**

I do not have a clue what it is cause it has been a long time sense I have read this book. Can you please help me?
*May 12, 2014*

**english**

17. In Shirley Jackson’s “The Lottery,” how does the author use Tessie’s late arrival to help create suspense? (1 point) A The reader does not know what event Tessie has arrived late for. B The reader knows that the townspeople are aware of Tessie's ...
*May 12, 2014*

**English**

16. What is the effect of the author’s use of assonance in the following line from “The Raven?” “For the rare and radiant maiden whom the angels name Lenore—” (1 point) A It creates emphasis on Lenore. B It explains Lenore’s appearance. C It ...
*May 12, 2014*

**English**

Thx
*May 12, 2014*

**English**

12. What does the following quote reveal about Montressor’s intentions? "'Pass your hand,’ I said, ‘over the wall; you cannot help feeling the nitre. Indeed it is very damp. Once more let me implore you to return. No? Then I must positively leave you. ...
*May 12, 2014*

**business Math**

900.38
*April 7, 2014*

**Mathematics lit, physical science, life science. Geography and englsh ,sepedi and l.o**

Clinical Psychologist
*March 25, 2014*

**Liberty**

What is the sample Z score to reject the null hypothesis if the cut off Z score +-2.31?
*February 21, 2014*

**statistics**

A population is normally distributed with mean 30, population SD =10, Sample size 25. What are the mean and variance of the distribution of means, respectively?
*February 20, 2014*

**MATH**

14/27
*January 21, 2014*

**Math**

Samantha swam 30 meters to a boat in 16 seconds. How long did it take her to swim each meter? I worked it out this way 8/15 x 30 = 240/15 240 divided bt 15 = 16 seconds my teacher said I was wrong and said the answer was 30/16????
*January 18, 2014*

**Math**

Samantha swam 30 meters to a boat in 16 seconds. How long did it take her to swim each meter? How would I work this out? Thank You
*January 18, 2014*

**physics**

A 0.40 kg mass is attached to a spring with force constant 26 N/m and released from rest at a distance of 3.2 cm from the equilibrium position Use conservation of energy to find the speed of the spring when it is halfway to the equilibrium position Find the maximum speed of ...
*November 21, 2013*

**Accounting**

1.More specifically, in the third and fourth quarter of 2000, at the direction and with the knowledge of WorldCom’s senior management, Vinson Normand and others, by making and causing to be made entries in WorldCom’s books which improperly decreased certain revenues ...
*October 5, 2013*

**math **

the price of a fax machine is marked down from $305 to $262.30. what is the rate of discount
*October 3, 2013*

**maths**

A die is thrown twice. Find the probability that the number obtained in the first throw is smaller than that in the second throw.
*August 30, 2013*

**maths**

A group of y numbers has mean x. If the numbers 3 and 5 are removed from the group, the mean of remaining(y-2) numbers remains unchanged. Find x.
*August 30, 2013*

**Finite Math**

True or false. [A ¿ (B ¾ C)]c = (A ¿ B)c ¿ (A ¿ C)c
*August 3, 2013*

**Finite Math**

True or false. P (n, r) = r! C (n, r). explain why please, thanks
*August 3, 2013*

**english**

D secondary research
*August 2, 2013*

**Computers C++**

1). After the assignment statement result = isspace('\t'); result has the value ________. 2). The data type of islower('g') is ________. 3). What will be output given the following information: float * pointer; float pay = 3.75; pointer = &pay; cout << &...
*July 14, 2013*

**math**

if i have a mix of 4oz. to 100lbs. how much would it be for 9Lbs.
*April 13, 2013*

**math**

2(n+3}<-4
*January 31, 2013*

**chemistry**

RANK THESE COMPOUNDS BY THE LENGTH OF THE CARBON-CARBON BOND
*January 14, 2013*

**Trigonometry**

rectangular form to polar form xy=12 rsinÆŸ rcosÆŸ=12 would the answer be: r^2=12/cosÆŸ sinÆŸ please show steps, Thanks
*December 19, 2012*

**math **

9/20 how do I multiply & simplity
*October 24, 2012*

**algebra**

(1) T in terms of A is alike to Y in terms of X for linear graphs, so set it up the same way. T = (something)A + constant The constant reading is 200 miles per hour so that is your constant. T = (something)A + 200 The true airspeed is increasing by 2% or .02 of the indicated ...
*September 26, 2012*

**Math**

Use all ten digits from 0 to 9 only once. Do not use 0 in either the milions or thousandths places. What is the greatest number less than 5 million?
*September 17, 2012*

**math**

Alternate exterior angles are always ?
*July 10, 2012*

**algebra**

a – 6 = 2b a + b = 15
*July 8, 2012*

**algebra**

Solve by setting up the proper equation to describe the facts given and then carrying out the mathematical calculations to solve for the unknown variable(s). The sum of two numbers is 36. Their difference is 4. Determine the two unknown numbers.
*July 7, 2012*

**pre algebra**

solve whether the sequence is arithmetic or geometric if it is arithmetic or geometric,state the common difference or common ratio and write the next three terms of the sequence 10,18,26,34
*May 3, 2012*

**Probability**

6 sided die is rolled 8 times, how many sequence of rolles are there?
*April 24, 2012*

**Math**

45 degrees
*April 12, 2012*

**AP Chemsitry**

A solution of an unknown monoprotic weak acid was titrated with 0.100 M NaOH. The equivalence point was reached when 37.48 ML of base had been added. From a second buret, exactly 18.74 of 0.100 M HCl were added to the titration solution. The pH was then measured with a pH ...
*April 1, 2012*

**physics**

A turntable must spin at 33.7 rpm (3.53 rad/s) to play an old-fashioned vinyl record. How much torque must the motor deliver if the turntable is to reach its final angular speed in 1.5 revolutions, starting from rest? The turntable is a uniform disk of diameter 30.5 cm and ...
*March 17, 2012*

**physics**

A spinning flywheel has rotational inertia I = 401.9 kg · m2. Its angular velocity decreases from 20.5 rad/s to zero in 257.1 s due to friction. What is the frictional torque acting?
*March 17, 2012*

**physics**

You are asked to hang a uniform beam and sign using a cable that has a breaking strength of 372 N. The store owner desires that it hang out over the sidewalk as shown. The sign has a weight of 248 N and the beam's weight is 49 N. The beam's length is 1.30 m and the ...
*March 17, 2012*

**Physics**

A house painter stands 3 m above the ground on a 5.3-m-long ladder that leans against the wall at a point 4.7 m above the ground. The painter weighs 638 N and the ladder weighs 143 N. Assuming no friction between the house and the upper end of the ladder, find the force of ...
*March 17, 2012*

**chemistry**

you are given an unknown gaseous binary compound. when 10.0g of the compound isburned in excess oxygen, 16.3g of water is produced. the compound has a density 1.38 times that of oxygen gas at the same conditions of temperature and pressure. give a possible identity for the ...
*December 8, 2011*

**chemistry**

you are given an unknown gaseous binary compound. when 10.0g of the compound isburned in excess oxygen, 16.3g of water is produced. the compound has 1.38 times that of oxygen gas at the same conditions of temperature and pressure. give a possible identity for the compound.
*December 8, 2011*

**microeconomics**

Immigration is a major topic of concern in today’s economy. What are the possible problems and solutions for these concerns? What could happen to the U.S. labor markets if immigration is not controlled?
*November 30, 2011*

**microeconomics**

Many factors determine the supply and demand for labor. Identify and explain two factors that would increase or decrease the demand for labor. Identify and explain two factors that would increase or decrease the supply of labor. Use the readings and/or the internet for examples
*November 30, 2011*

**Microeconomics**

Answer the following questions based on the graph that represents J.R.'s demand for ribs per week of ribs at Judy's rib shack. a. At the equilibrium price, how many ribs would J.R. be willing to purchase? b. How much is J.R. willing to pay for 20 ribs? c. What is the ...
*November 27, 2011*

**grammer**

find italicized test
*October 28, 2011*

**physics**

You have four vectors. For each one resolve them into North and east components. Adding the North components. N= 75 + 0 + 125 sin(30) - 150 = - 12.5 m And adding the east components we get E = 0 + 250 + 125 cos(30) + 0 = 358.25 The magnitude of the result is found by ...
*October 24, 2011*

**trig**

If S is an element of [ 3pi/2 , 2pi ] what quadrant does the terminating side lie in and evaluate for sine theta
*October 21, 2011*

**physics**

25 m
*October 12, 2011*

**Chemistry II**

Liquid sodium can be used as a heat transfer fluid. It's vapor pressure is 40.0 torr @ 633 degrees C and 400.0 torr @ 823 degreees C. Calculate it's heat vaporization.
*September 5, 2011*

**Chemistry**

Write the balanced net ionic equation. Label species as solids liquids gase aqueous. HNO3(aq) + Ba(OH)2(aq) ---> I don't understand the steps? And how to balance it?
*July 24, 2011*

**College Algebra**

Sorry, the question is "A person is 66 inches tall is standing 15 feet away from a streetlight. If the person casts a shadow 84 inches long, how tall is the streetlight?"
*June 24, 2011*

**College Algebra**

If a person is 66 inches tall is standing 15 feet away from a streetlight. If the person casts a shadow 84 inches long, how tall is the streetlight?
*June 24, 2011*

**kettering elementary school**

what do you do when you have 10 or more ones
*May 24, 2011*

**biology**

why is the cell membrane important to people?
*May 19, 2011*

**m-100**

Sketch the graph of each linear function. Give the domain and range. (a) f(x) = -2x + 1 (b)f(x) = -3.
*May 5, 2011*

**m-100**

write an equation for the srtaight line that satisfies the given conditions. (a) Through (-2,-2); slope -1 (b) Through (4,2); slope 1/2.
*May 5, 2011*

**m-100**

find the slope-intercept form of the straight lines,given by the following equations: (a) -4x + 2y =4 (b) 2x = 1-4y
*May 5, 2011*

**math**

if a basketball player shoots 50 free throws and makes 23% of them,how many free throws did he make?
*April 19, 2011*

**math**

simplify (6x^3-7x^2+3x+9)/(3x+9)
*March 23, 2011*

**science**

Scientists performed an experiment to determine whether there is a connection between learning ability and food. They took two groups of 20 mice each, all from the same purebred strain. The mice were deprived of food for 3 days and then given a standard learning session in ...
*February 12, 2011*

**geometry**

what is the perimeter of trapeziod (-3,3) (-5,0) (2,3) (4,0)
*February 8, 2011*

**math**

i solved by factoring like this: 3x^2+5x-12=0 (3x+4)(x-3) -4 +3 x=-4 x=3 now i need to solve by the form x^2=k How do I do that?
*February 7, 2011*

**physics**

a car is approaching a traffic light at 25m/s when it turns red. The driver takes 1 second to react and put his foot on the brake pedal, after which the car decelerates at 2m/s^2. find the distance needed for the car to come to stop after the light turns red
*January 25, 2011*

**physics**

a girl throws a ball vertically upwards at 5m/s from the roof of a building 20m high how long will it take the ball to reach the ground? and what will its speed be when it strikes the ground
*January 25, 2011*

**Algebra**

Sam two student loans totaled $31,000. One of his loans was at 2.8% simple interest and the other at 4.5%. After one year, Sam owed $1024.40 in interest. What was the amount of each loan?
*January 13, 2011*

**physics**

The velocity of a diver just before hitting the water is -8.8 m/s, where the minus sign indicates that her motion is directly downward. What is her displacement during the last 0.93 s of the dive?
*January 12, 2011*

**physics**

The velocity of a diver just before hitting the water is -8.8 m/s, where the minus sign indicates that her motion is directly downward. What is her displacement during the last 0.93 s of the dive?
*January 12, 2011*