Monday

May 2, 2016
Total # Posts: 708

**Chemistry**

What is osmolarity of a 0.20M MgSO4 solution, which is 50% dissociated?
*March 12, 2016*

**Lab Math**

What is osmolarity of a 0.20M MgSO4 solution, which is 50% dissociated?
*March 12, 2016*

**Math**

A Gentoo penguin can swim at a rate of 17 mph. How many miles can a penguin swim in four hours? Use the expression RT, where R represents rate and T represents time.
*March 9, 2016*

**Math**

Create a piecewise function of the following scenario where D(t) is the total distance walked in miles as a function of time T (in minutes) You begin a walk from your home at a fast pace of 6 miles per hour for 30 minutes. You rest for 15 minutes, and then you continue walking...
*February 18, 2016*

**Math**

What is the area of a pentagon with sides of equal length, measuring 5v+3?
*February 3, 2016*

**Social Studies**

How do jobs today differ from the Jeffersonian era (agriculture, crafts, shipping)? Does it make a difference in the way education is conducted, public or otherwise?
*January 30, 2016*

**math**

Are is their a good website that has good video with precal lessons im havong difficulty with a bad teacher
*January 27, 2016*

**Psychology**

A man feels anxious and a little sick to his stomach when he walked up to the front door of his old elementary school. School had been very hard for him and he remembers feeling “stupid” a lot of the time he was in school. What is the unconditioned stimulus and ...
*January 27, 2016*

**math**

Are is their a good website that has good video with precal lessons im havong difficulty with a bad teacher
*January 26, 2016*

**Physics**

with what minimum speed must a ball be thrown straight up in order to reach a height of 34 meters above the launch position?
*January 22, 2016*

**Science**

My granddaughter has to do a project about a product she would create and test we've decided on the safetyof white paper napkins vs dyed ones I don't know where to begin please help
*January 12, 2016*

**Physics**

The coordinate of a boy running across a parking lot as a function of time is gives as :x0†3=3t*2 7.2t 28 and y0†3=0.28t*2 - 9.1t 30...express the boys position vector r0†3 and velocity v0†3 in unit vector rotation and find the ...
*January 9, 2016*

**Phychology**

Which of these guests would require service to their car? A young mother with her baby A man in his workout wear A couple with three bags of groceries An elderly person with one bag of groceries All of the above
*December 30, 2015*

**Pre- Algebra**

State if each number is Rational,Irrational,or not a real number? 1.)square root of 9/16 2.) square root of -9 3.)square root of -16 divided by -4 4.)square root of -8(-2) 5.)square root of 25 divided by 8 6.)square root of -1/4 Please Help! I have been sick for 4 weeks and I ...
*December 9, 2015*

**geometry**

Perimeter of pool is 84ft squared. The removal charge for tile is $20 per linear foot. Each new 6-inch square tile costs $2. A pool professional installs the new tile for an additional $300 charge. What is the total cost for removal and installation, and additional charge?
*November 28, 2015*

**geometry**

Perimeter of pool is 84ft squared. The removal charge is $20 per linear foot. Each new 6-inch square tile costs $2. A pool professional installs the new tile for an additional $300 charge. What is the total cost?
*November 27, 2015*

**geometry**

- One cubic foot is approximately 7.5 gallons of water - A typical garden hose releases approximately 11 gallons of water per minute Total cubic feet is 2268. How long will it take to refill the pool?
*November 27, 2015*

**Algebra**

A square has an area of 49 square units. Find the sode length and perimeter of the square.
*November 25, 2015*

**Social studies**

How did the proclamation of 1763 attempt to protect native American rights and land? I need help asap beacause it due tomorrow
*November 8, 2015*

**Precalculus**

10x^2=2^x Hi! How do I go about solving an equation like this? It's meant to be a calculator solution but I'd love to know how it's done by hand. Logarithms maybe? .. Thank you in advance (:
*November 6, 2015*

**us history**

Did you get it right? I thought it was A
*October 31, 2015*

**Family Dynamics**

culture
*October 30, 2015*

**Geometry**

The answer is 12
*October 21, 2015*

**Geometry**

Nvm I got it
*October 21, 2015*

**Geometry**

Why does it say plus 2?
*October 21, 2015*

**Geometry**

The degree measure of the vertex angle is (3x-8). The degree measure for each base angle is (6x-41). What is the value of vertex angle?
*October 21, 2015*

**Algebra**

Solve. 1.) 7/33y = -56/3 2.) 8/11k = 29/44
*October 19, 2015*

**Physics**

A rocket has put your spacecraft in a circular orbit around Earth at an altitude of 350 km. Calculate the force due to gravitational between the Earth and the spacecraft in N if the mass of the spacecraft is 2450 kg.
*October 11, 2015*

**Chem11**

How many moles of iron(iii) chloride could be made with an unlimited supply of iron atoms but only 1.81 X 10e23 chlorine atoms?
*October 7, 2015*

**Algebra**

Thanks
*October 6, 2015*

**Algebra**

Multi-Step The heights of the starting players for the Davis High School boy's basketball team are 78 1/2 in., 74 in., 71 5/8 in., 70 3/4 in., and 69 1/2 in. Find the average height of the starting players.
*October 6, 2015*

**math**

I don't know that's why I'm on this site duhh
*October 6, 2015*

**BioChemisty**

You have a 0.5 M HEPES pH 7, and a 0.5 M HEPES pH 8 solution. How much of each stock solution do you need to make 125mL of a 50 mM HEPES pH 7.5 solution? How much water?
*September 20, 2015*

**algebra**

9 balls in a hat. balls are numbered 1-9. you choose 3 balls. how many possible combinations are there?
*September 13, 2015*

**Chemistry**

A star is estimated to have a mass of 4.4x1026lbs. It has a diameter of 8.69x105 mi. Calculate the density in g/cm3.
*September 3, 2015*

**introduction to computers**

Right click on it
*August 18, 2015*

**Physics**

3.6
*July 15, 2015*

**Algebra**

Thank you so very much
*May 12, 2015*

**Algebra**

A ladder base is 3 m away from a house, and the fully extended ladder is 5 m long when it leans against the house. How high does the ladder reach on the house?
*May 12, 2015*

**Financial math**

Taylor is purchasing a home for $235,000. She is putting 20% down. She has qualified for a 30 year mortgage at 4.5% APR. Calculate her monthly payment.
*April 30, 2015*

**Chemistry**

when titrating 50 mL of .10M H2SO45 with .10 M NaOH, how many mL of NaOH will you have added to reach first equivalence point?
*April 14, 2015*

**Acct.101**

Post to the account Stock Investments. Common Stock Shares Cost Co.A 1,980 $91,080 Co.B 4,990 $44,910 Co.C 1,100 $24,200 I am trying to figure out what the stock investment amount is and to find the stock investment. Additional information Sept 1, Sold 998 shares of B CO. ...
*April 12, 2015*

**Chemistry**

A 25.00 mL sample of HCl was titrated with 35.79 mL of 0.250 M KOH. The concentration of the HCl solution is:
*April 6, 2015*

**algebra**

Yoko runs 3 miles in 25 minutes. At the same rate, how many miles would she run in 20 minutes?
*March 15, 2015*

**algebra**

The drama club has 41 members. There are nine more girls than boys. How many boys are in the club
*March 3, 2015*

**Finance**

the existing or current (spot) 1-, 2-, 3-, and 4-year zero coupon Treasury security rates were as follows: 1R1 = 0.30%, 1R2 = 0.90%, 1R3 = 1.30%, 1R4 = 1.45% Using the unbiased expectations theory, calculate the 1-year forward rates on zero coupon Treasury bonds for years 2, 3...
*February 23, 2015*

**Math**

Sue deposited $3000 in a savings account earning 2% interest over 8 years, what was the total interest Sue earned?
*February 23, 2015*

**math**

What is equal to 6(y-1) in 4 different ways I can only find there help
*February 18, 2015*

**Physics**

A spaceship in deep space has a velocity of 4000 km/s and an acceleration in the forward direction of 6 m/s2. What is the acceleration of a ball relative to the spaceship after it is released in this spaceship?
*February 12, 2015*

**Language Arts**

The answer is C i already had this question
*February 9, 2015*

**Human service**

A description of how client feedback can be applied following an intervention
*February 4, 2015*

**Math**

What does r and t stand for
*January 21, 2015*

**history**

Under Franklin Roosevelt's Good Neighbor policy, A. Cordell Hull favored continued military interventions in Latin America. B. the collective security among the nations of the Western Hemisphere declined. C. American commerce with Latin America increased, but only ...
*December 24, 2014*

**language arts**

which of the following statements best summarizes the "fiddler's bill" Bostonians had to pay for the tea party as described in section 1 of chapter 7 in chapter Johnny Tremain? A The port of Boston was closed to all ships, numbers of workers lost their jobs. Many...
*December 18, 2014*

**language arts**

Which of the following statements best summarizes the "fiddler's bill" Bostonians had to pay for the tea party, as describes in 1 of chapter 7 from Johnny Tremain? A. The port of Boston was closed to all ships, and huge numbers of workers lost their jobs. Many ...
*December 17, 2014*

**chemistry **

What is the final volume of NaOH solution prepared from 200.0mL of 0.500M NaOH if you wanted the final concentration to be 0.200M ?
*December 4, 2014*

**Chemistry**

H2SO4 + 2 NaOH = 2 H2O + Na2SO4 V H2SO4 = 0.025L since you divide it by 1000 to get L C H2SO4= ? V NaOH = 0.045L C NaOH = 0.115 First find the moles for NaOH to find moles you do n= C*V n= 0.115*0.045 n= 0.005175 Now do molar ratios H2SO4 1 x -------- = --- = --------- NaOH 2 ...
*December 1, 2014*

**Physics**

Sam pushes crates starting form rest across the floor of his classroom for 3 s with a net force as shown above. For each crate, rank the following from greatest to least: A 100N/30kg, B 75N/20kg C 50N/10kg 1. Impulse delivered 2. Change in momentum 3. Final speed 4. Momentum ...
*November 12, 2014*

**Physic**

Show the equation that 100g of 100C steam will completely melt 800g of 0C ice.
*November 9, 2014*

**Physic**

A penny on its side moving at speed v slides off the horizontal surface of a table a vertical distance y from the floor. a) Show that the penny lands a distance v√(2y/g) from the base of the coffee table. b) If the speed is 3.5 m/s and the coffee table is 0.4 m tall, ...
*November 7, 2014*

**Math**

Why 53
*October 15, 2014*

**Math**

Yes it want her to estimate first then find the product. I don't understand
*October 15, 2014*

**Math**

Estimate then record the product $53 times 4
*October 15, 2014*

**geology**

Cottage roof timber from Ireland. Date: 906 ± 35 years
*October 10, 2014*

**English**

Specific
*September 24, 2014*

**English**

I need help finding contradiction statements in the story to build a fire by jack london
*September 4, 2014*

**Algebra**

nathan wants to go to a hockey game with friends. Tickets are $18, but students can get discounted tickets for $12. They want to spend no more than $80, including $8 for parking. The vehicle they will take can only hold 7 people. Write and graph a system of four inequalities ...
*August 14, 2014*

**sociology**

explain The impact of preventive medicine and public health
*August 10, 2014*

**calculating statistical data**

22.22
*July 23, 2014*

**Math - 3rd grade summer work**

so, this doesn't follow any rule of physics that the ball would slow down with each bounce?
*June 22, 2014*

**Math - 3rd grade summer work**

A Super-Duper ball bounces twice its height when it is dropped. Carl dropped a Super-Duper ball from the roof of a 12-foot garage. How high will the ball bounce after 5 bounces?
*June 22, 2014*

**psychology**

operantional
*June 13, 2014*

**vocab**

i need help
*May 28, 2014*

**science **

2. I need help balancing this Na2(SO4) + CaCl2 „³ NaCl + Ca(SO4)
*May 28, 2014*

**language art**

One is a story called teacher hero: Erin gruwell by jerrilyn jacobs.the other is from zlata`s diary by zlata flipovic.
*May 12, 2014*

**language art**

What is one difference between the credentials of jerrilyn Jacobs and zlata filipovic? Jerrilyn jacobs is younger Jerrilyn jacobs provides a firsthand account Jerrilyn jacobs is a communications expert Jerrilyn jacobs is a teaching expert I picked b is that right?
*May 12, 2014*

**Algebra II**

what is the slope of any line parallel to the graph of 6x+5y=9
*May 12, 2014*

**math**

ok
*May 12, 2014*

**science**

Which evidence from the sea floor shows that tectonic plates move? A) the sea floor is youngest near a mid ridge and farther away. B) the sea floor is much older the cont. C) mid ocean ridges form the longest range of mountains on earth. D) the sea floor is thinner than the ...
*May 8, 2014*

**science 3 questions**

need help with the same things
*May 6, 2014*

**math**

x+9=2
*May 6, 2014*

**social studies**

I tried reading but I'm very confused. what answer do you think it is?
*April 28, 2014*

**social studies **

ANSWER! PLEASE!! which of the following most contributed the rise of Sumer? a. farming b. military power c. isolated location d. trade
*April 28, 2014*

**social studies**

okay. thank you!
*April 28, 2014*

**social studies**

what answers are you thinking?
*April 28, 2014*

**math**

amy is 5 feet tall shes standing 12 feet from a street light if amy's shawdow is 4 feet long which porportion could be used to find the height of the street light
*April 20, 2014*

**math**

there are 13 boys and 14 girls in mrs greens class if 3 of the students are absent today what is the ratio of students absent to students present?
*April 19, 2014*

**math**

A customer earned $3,262.50 interest on a 9-month CD. How much was the opening deposit?
*April 4, 2014*

**Chemistry**

thank you
*March 18, 2014*

**Chemistry**

The Ksp of tin(II) hydroxide, Sn(OH)2, is 5.45 × 10-27. Calculate the solubility of this compound in g/L.
*March 18, 2014*

**chemistry**

When aqueous solutions of potassium carbonate and magnesium nitrate are combined, solid magnesium carbonate and a solution of potassium nitrate are formed. The net ionic equation for this reaction is:
*March 3, 2014*

**chemistry**

Write the net ionic equation for the following molecular equation. HBr is a strong electrolyte. HClO is a weak electrolyte. KClO(aq) + HBr(aq) KBr(aq) + HClO(aq)
*March 3, 2014*

**chemistry**

Predict the prdeucts of the following acid/base and precipitation reactions and balance the equations. Remeber to indicate (s), (l) or (aq Q1. HCI(aq) + Mg(OH)2(aq)----> Q2. Pb(NO3)2(aq)+ Na2S (aq)---> Q3. write the ionic equation for question 2.
*March 2, 2014*

**chemistry**

write the net ionic equation for the following molecular equation. 2Crl(aq)+3NaCO3(aq) ---> Cr2(CO3)3(s) + 6NaI(aq)
*March 1, 2014*

**chemistry**

what is the net ionic equation for the following molecular equation. HNO3 is strong electrolyte and CH3COOH is weak electrolyte. NaCH3COO(aq)+HNO3(aq)----->NaNO3(aq)+CHOOH(aq) the same question says use H+ for the hydronium ion, CH3OOH for acetic acid and CH3COO for the ...
*March 1, 2014*

**Chemistry**

Predict the prdeucts of the following acid/base and precipitation reactions and balance the equations. Remeber to indicate (s), (l) or (aq Q1. HCI(aq) + Mg(OH)2(aq)----> Q2. Pb(NO3)2(aq)+ Na2S (aq)---> Q3. write the ionic equation for question 2. Can you let me know how ...
*March 1, 2014*

**Chemistry**

sorry your right its 2Crl3(aq) and 3NA2CO3(aq) apologies for the error.
*March 1, 2014*