Friday

August 26, 2016
Total # Posts: 364

**pre calc**

5x+3yi=5-6i?
*July 31, 2016*

**Math**

Thanks you! I got the answer!
*June 29, 2016*

**Math**

Two trains leave the station at the same time, one heading east and the other west. The eastbound train travels 12 miles per hour slower than the westbound train. If the two trains are 400 miles apart after 2 hours, what is the rate of the eastbound train? No Rounding.
*June 29, 2016*

**math**

If 35% of people surveyed prefer orange to apples.Out of 475 people surveyed how many can be predicted to prefer orange
*May 24, 2016*

**World History**

It is ture
*May 24, 2016*

**english**

It A
*May 24, 2016*

**Geometry**

Point $G$ is the midpoint of median $\overline{XM}$ of $\triangle XYZ$. Point $H$ is the midpoint of $\overline{XY}$, and point $T$ is the intersection of $\overline{HM}$ and $\overline{YG}$. Find the area of $\triangle MTG$ if $[XYZ] =150$.
*April 21, 2016*

**chemistry**

what volume of glycerine C3H8O3, with a density of 1.26 g/mL should be taken to obtain 2.50 ml of glycerine?
*April 17, 2016*

**Math**

Larry hit 24 home runs last season and 50 this season. What is the percent of increase in the number of home runs Larry hit from last season to this season?
*April 4, 2016*

**U.S History**

Don't You Push Me Down Words and Music by Woody Guthrie Well you can play with me And you can hold my hand. We can skip together Down to the Pretzel man You can wear my mommy's shoes Put on my daddy's hat You can even laugh at me But don't you push me down. ...
*March 2, 2016*

**physics **

calculate the electrostatic force between charges of -2.4 µC and +5.3 µC, placed 58cm apart in a vaccum.
*February 29, 2016*

**physics **

An artificial Earth satellite, of mass 3.00 × 10^3 kg, has an elliptical orbit, with a mean altitude of 500 km. (a) What is its mean value of gravitational potential energy while in orbit? (b) What is its mean value of orbital kinetic energy? (c) What is its total energy...
*February 29, 2016*

**maths**

determine the thrust produced if 1.5 x 10^3 kg of gas exits the combustion chamber each second, with a speed of 4.00 x 10^3 m/s
*February 29, 2016*

**maths**

4x+16y:32 and 4x+y:17
*February 13, 2016*

**physics**

A capacitor,consisting of two metal plates each of area 50cm2 and space 0.2mm apart in air ,is connected across a 120V supply.Calculate (1)the energy stored..(2)the electric flux density and the potential gradient..
*February 13, 2016*

**Geometry**

A photographer enlarged a picture. If the width of the image is 5 inches and the width of the pre-image was x, what is the scale factor for the dilation in terms of x?
*January 5, 2016*

**gale math**

How to write 233.75 and 85.50 as a decimal number
*December 27, 2015*

**math**

a)without using a spreadsheet, construct an amortization table for the loan repayment b)what is the final payment if she takes all of the four years to repay the loan c)what is the last payment if she chooses to repay the loan in seven payments
*December 14, 2015*

**math **

meredith borrows $3600 to help pay for nurse's college. she will repay the loan by making equal blended payment of $625 each at the end of every six months. The interest rate is 11%/a, compounded semi annually.
*December 14, 2015*

**Math**

If 500 feet of fencing is used to enclose a rectangular plot of land that borders a river, what is the maximum area that can be enclosed? Answer to two decimal places.
*December 12, 2015*

**Ap physics 1**

The mass of a star in a galaxy far, far away, is 3.12 × 105 Earth masses, and the mean distance from the center of this star to the center of a planet with the same mass as our Earth is 2.46 × 108 km. Treating this planet and star as particles,with each mass ...
*December 11, 2015*

**Chemistry **

what is the wave length and type of light released when an electron absorbs 3.03 x10 -19 j of energy
*November 4, 2015*

**Science **

The spin of an object on its own axis is called
*September 29, 2015*

**physical science(elecrostatics)**

A(-9x10^-9 C) 20mm B(5x10^-9 C) (a)calculate the force between the charges (b)if A comes in contact with B Calculate the new charge on A and B
*September 16, 2015*

**English**

bravery
*August 28, 2015*

**algebra 1**

One staple is probably to light to pick up on the balance. Let m = mass of one staple. 210*m = 6.8 m = 6.8/210 m = 0.032g
*August 22, 2015*

**Physics**

At an instant the block(M = 33kg) is moving down the slope. Angle between slope and floor = 33deg Force Pulling up the slope 49N at 38deg to the slope What is the acceleration of the block up the slope if the kinetic coefficient of friction is 0.5? My first thought was that ...
*August 22, 2015*

**life orientation**

Define risk behavior and explain why it is important for teenagers to investigate and be knowledgeable about it.
*August 21, 2015*

**Math**

Show that the limit as h approaches 0 of (e^h-1 ) all over h = ln e = 1 using at least two numerical examples.
*July 26, 2015*

**Calculus**

Show that the limit as h approaches 0 of (e^h-1 ) all over h = ln e = 1 using at least two numerical examples.
*July 26, 2015*

**cal**

Show that the limit as h approaches 0 of (e^h-1 ) all over h = ln e = 1 using at least two numerical examples.
*July 26, 2015*

**Calculus**

Find the derivative of the following functions using the f prime of x = the limit as h approaches 0 of f(x+h) – f(x) all over h a)ƒ(x) = x2 + 5^x b)ƒ(x)= 1/2^x
*July 26, 2015*

**Calculus**

Givenƒ(x) = ex, verify that lim h->0 (e^x+h - e^h)/h + e^x and explain how this illustrates that ƒ′(x) = ln e • ƒ(x) = ƒ(x)
*July 22, 2015*

**biology help**

What are the biological terms of the following 1.A diagram that show the evolutionary history of plant groups 2.hoploid cell which grows into a plant
*June 17, 2015*

**physical science chemistry**

If 25 cm^3 of the potassium hydroxide (KOH) solution was used to neutralise 35cm^3 hydrochloric (HCl)solution, determine the concentration of the hydrochloric acid solution. Thanks
*June 17, 2015*

**science**

1. Descriptive statistics are widely used in qualitative research. When establishing if a population is normally distributed explain when the statistics of sample size, mean, mode, median, skewness and kurtosis will guide the researcher to make conclusions of a normal ...
*May 30, 2015*

**Life orietation.**

The powers of the police during a protest.
*May 21, 2015*

**English**

english is the language of opportunity
*May 5, 2015*

**maths**

PLEASE DO NOT POST PROBLEMS FROM THE PROMYS APPLICATION SET. YOU HAVE BEEN REPORTED.
*April 15, 2015*

**Chemistry**

What is the change in entropy when 9.30 mL of liquid benzene (C6H6, d = 0.879 g/mL) is burned in the presence of 37.2 L of oxygen gas, measured at 298 K and 1 atm pressure? 2C6H6(l) + 15O2(g) → 12CO2(g) + 6H2O(l); ∆S° = –437.7 J/K at 298 K
*April 11, 2015*

**Help please**

WTF is with all these haters ? Like you enjoy doing your fckn schoolwork, I know how to do them, I'm just lazy . gtfoh john & writeacher
*April 6, 2015*

**chemistry**

Determine the limiting reactant for this reaction if 3.027 grams of Aluminum are reacted with 60.00 mL of a solution that is 6 M KOH. Determine the amount of KAl(SO4)2•12 H2O that can be produced from this reaction. Molar mass Alum = 474 g/mol 2 Al (s) + 2 KOH (aq) + 22 ...
*March 29, 2015*

**Probability **

Consider 10 independent tosses of a biased coin with the probability of Heads at each toss equal to p, where 0<p<1. Given that there were 4 Heads in the first 7 tosses, find the probability that the 2nd Heads occurred at the 4th toss. Give a numerical answer.
*March 3, 2015*

**math**

Michaela makes original stationary to give away as gifts. She likes to put a small bow in the corner of each card. She purchased a piece of ribbon that was 3 1/4 ft long. She can make each bow out of 1/3 ft of ribbon. Which equation would be used to show how many bows she can ...
*January 16, 2015*

**Math**

a pool 5 feet deep with a diameter of 40 feet is filled with water in 50 minutes. how long will it take to fill a pool that is 6 feet deep with a diameter of 36 feet?
*January 8, 2015*

**physics**

0.160kg
*November 5, 2014*

**Calculus**

A 13 foot ladder is leaning against the house when it's base starts to slide away. By the time is 12 feet from the house the base is moving at the rate of 5 ft/sec. 1.How fast is the top of the ladder sliding down the wall at that moment? 2. At what rate is the angle theta...
*October 16, 2014*

**algebra 2**

This is a repost from earlier. I thought it didn't go through so I typed it again.
*August 24, 2014*

**algebra 2**

You have $25 to park your car in a garage in the city. The garage charges $4 for the first hour and $3 for each additional hour. Write an equation & determine the possible number of hours you can park. Help Again!
*August 24, 2014*

**Algebra**

Express as a single logarithm and, if possible, simplify: In x^2 + 3In x-In x^8 Thanks so much
*August 2, 2014*

**calcus**

A car travels 6 miles north and then turns right and travels 8 miles east to reach the garage. What is the straight line distance between the starting point and the garage?
*June 26, 2014*

**Chemistry**

When 100 mL of 0.60 M Na2CO3 (aq) is combined with 500 mL of 0.060 M Ba(NO3)2(aq), a precipitate is observed. What is the equilibrium concentration of Ba2+(aq) at 25°C?Ksp(BaCO3) = 8.1 x 10-9
*April 24, 2014*

**Physics**

A 2050 kg truck is traveling east through an intersection at 2.3 m/s when it is hit simultaneously from the side and the rear. (Some people have all the luck!) One car is a 1200 kg compact traveling north at 4.5 m/s. The other is a 1600 kg midsize traveling east at 10 m/s. The...
*March 8, 2014*

**Social studies**

the 18 amendment, when did it happen
*February 25, 2014*

**Science Help!**

3. Using coal for fuel releases pollution into the atmosphere. Why do people continue to use coal if it causes pollution? A. Using more coal reduces the amount of pollution from using oil B. Using coal is relatively inexpensive. C. Mining coal helps scientist uncover fossils D...
*February 3, 2014*

**Help!!!**

1. Aquaculture is the practice of farming sea organisms as a renewable food source. A. True B. False. 2. Selectively cutting down trees on an area of land can be best described as A. cutting down certain trees while leaving other trees standing B. cutting down all of the trees...
*February 3, 2014*

**Help with science**

1. Aquaculture is the practice of farming sea organisms as a renewable food source. A. True B. False. 2. Selectively cutting down trees on an area of land can be best described as A. cutting down certain trees while leaving other trees standing B. cutting down all of the trees...
*February 3, 2014*

**Science**

Check my answers please!!!
*February 3, 2014*

**Science**

Help
*February 3, 2014*

**Science**

1. Aquaculture is the practice of farming sea organisms as a renewable food source. A. True B. False. 2. Selectively cutting down trees on an area of land can be best described as A. cutting down certain trees while leaving other trees standing B. cutting down all of the trees...
*February 3, 2014*

**sdssu math3**

x=8
*November 18, 2013*

**Language arts help!!**

more help cantact me at (theminecrafter46931@gmail)saying "conections academy buddy" ok
*November 12, 2013*

**Language arts help!!**

1.c 2.a 3.b 4.c 5.b 6.c 7.b
*November 12, 2013*

**Physics**

A heavy wooden block rests on a flat table and a high-speed bullet is fired horizontally into the block, the bullet stopping in it. How far will the block slide before coming to a stop? The mass of the bullet is 9.5 g, the mass of the block is 10.5 kg, the bullet's impact ...
*November 6, 2013*

**physics**

HOW DO I DO THIS PLZ HELP I DONT NEED U TO SOLVE I JUST NEED TO KNOW HOW Salmon often jump waterfalls to reach their breeding grounds. Starting 2.65 m from a waterfall 0.584 m in height, at what minimum speed must a salmon jumping at an angle of 25.2 ◦ leave the water to...
*October 28, 2013*

**Algebra**

X=50
*October 21, 2013*

**Physics**

The position of a toy locomotive moving on a straight track along the x-axis is given by the equation: x=t^4-6t^2+9t where x is in meters and t is in seconds. The net force on the locomotive is equal to zero when t is equal to Answer in units of s.
*September 27, 2013*

**Chemistry**

should be 3 right?
*September 26, 2013*

**Economics/Business**

Our large companies seem to be largely run by hired managers who work for salaries and who are not owner-entrepreneurs. How then do we get the profit motive into large companies?
*September 15, 2013*

**Capitalism**

In a capitalist economy, how can we cure poverty?
*September 14, 2013*

**Economics**

Who has an unlimited checking account with the US Treasurer that enables them to write all the checks they want without regard to having funds in the bank?
*September 14, 2013*

**Science**

help
*September 6, 2013*

**Acc Algebra 2**

x-6/x = 3/5
*September 2, 2013*

**Acc Algebra 2**

consecutive integers are integers like 1,2,3 or 3,4,5 or 101,102,103. So since the largest of the integers is k, to get the consecutive integers lower than k, you have to find the second integer which would be k-1, then the third which would be k-2.
*September 2, 2013*

**Acc Algebra 2**

or if your teacher wants it in this format V=k(k^2-3k-2)
*September 2, 2013*

**Acc Algebra 2**

V=lwh V=k*k-1*k-2 V=k^3-3k^2-2k
*September 2, 2013*

**Bio**

c, more solids(glucose) outside cells in the blood plasma means the water in the cells will move out into the plasma through osmosis.
*August 29, 2013*

**Statistics**

0.45
*May 27, 2013*

**chem**

determine the mass (g) of SO2 that is produced byt the reaction of 15g of CS2 according to the following equation: CS2 + 3O2 = CO2 + 2SO2
*May 20, 2013*

**math**

1) An antique dresser was purchased for $7500 in 2005. The dresser increases in value by 9% per year. Find the value of the dresser in 2025. 2) a) Find the slope of the secant to the curve f(x) = 0.25(4)^(x) - 2 between: p1) x=0 and x = 1 p2) x=0 and x=0.5 p3) x=0 and x=0.1 p4...
*April 2, 2013*

**math**

Give an example of a logarithmic equation that cannot be solved and explain why it cannot be solved. (3 marks)
*March 17, 2013*

**math**

The length of time that it takes for a pendulum to make one complete swing depends on the length of the pendulum. The time in seconds, T, is related to the length in meters, L, through the equation: T=2π√((L)/(9.8)) [it is all under square root] Q1: write in ...
*March 13, 2013*

**science**

never mind i know now thankyou
*January 31, 2013*

**science**

thankyou i appreciate it could u however plz explain how u knew 1 mol of ag =108g
*January 31, 2013*

**science**

thankyou i appreciate it
*January 31, 2013*

**science**

still confused
*January 31, 2013*

**science**

CH3CH2CHO + 2Ag(NH3)2OH = CH3CH2COONH4+2Ag+H20+3NH3 yield of Ag obtained = 75% calculate minimum mass of propanal that must have been used to form 5g of silver
*January 31, 2013*

**gpa**

I'm a sophmore my current gpa from my freshman year came up to be a 1.2, we just finished our first semester my gpa from from first nine weeks and second nine weeks both were a 2.4, was wondering if i stay on track like this will I be able to pull my gpa up to a 2.0 ? and ...
*December 22, 2012*

**math**

The graph shows the cost C in dollars to rent a car for one day as a function of the number m of miles driven. Which of the following functions models the situation?
*December 1, 2012*

**Statistics**

The time per week a student uses a lab computer is normally distributed, with a mean of 6.2 hours and a standard deviation of 0.9 hour. A student is randomly selected. a. Find the probability that a student uses a lab computer less than 4 hours per week. b. Find the ...
*November 30, 2012*

**Physics HELP!**

2. Suppose you pour 15 g of hot water (at 55 oC) into a glass that contains 20 g of ice (at - 10 oC). Neglect the heat absorbed in the glass itself. a. How much heat would the water give up to get cooled to the melting point? b. How much heat would it take to get the ice to ...
*November 19, 2012*

**Physics**

Suppose you pour 15 g of hot water (at 55 oC) into a glass that contains 20 g of ice (at - 10 oC). Neglect the heat absorbed in the glass itself. a. How much heat would the water give up to get cooled to the melting point? b. How much heat would it take to get the ice to the ...
*November 19, 2012*

**Physics**

2. Suppose you pour 15 g of hot water (at 55 oC) into a glass that contains 20 g of ice (at - 10 oC). Neglect the heat absorbed in the glass itself. a. How much heat would the water give up to get cooled to the melting point? b. How much heat would it take to get the ice to ...
*November 19, 2012*

**Chemistry**

A 5.0g KBr sample, at 25 degrees celsius, dissolved in 25 ml of water, also at 25 degrees celsius. the final equilibrium temperature of the resulting solution is 18.1 degrees celsius, What is the enthalpy change in J/g and KJ/mole of KBr.
*November 14, 2012*

**History**

Why might a president's legislative proposal receive strong public support from around the nation yet still encounter opposition in Congress?
*November 14, 2012*

**University Physics**

from my calculations the answer is 128.35seconds
*November 1, 2012*

**Honors Physics **

A plane traveling at 300.0 km/h attempts to land on a 500 m runway. The plane’s engines and brakes accelerate uniformly at –5.0 m/s2. Will the plane be able to land safely?
*October 16, 2012*

**Statistics**

When a truckload of apples arrives at a packing plant, a random sample of 250 is selected and examined for bruises, and other defects. The whole truckload will be rejected if more than 5% of the sample is unsatisfactory. Although it is not known, in fact 8% of the apples on ...
*October 8, 2012*

**Math**

When a truckload of apples arrives at a packing plant, a random sample of 250 is selected and examined for bruises, and other defects. The whole truckload will be rejected if more than 5% of the sample is unsatisfactory. Although it is not known, in fact 8% of the apples on ...
*October 8, 2012*