Thursday

June 30, 2016
Total # Posts: 1,232

**Statistics**

Tennis Ball Manufacturing: A company manufactures tennis balls. When its tennis balls are dropped onto a concrete surface from a height of 100 inches, the company wants the mean height of a ball’s bounce upward to be 55.5 inches. This average is maintained by periodically...
*May 26, 2015*

**math**

i dont understand. its fine
*May 24, 2015*

**math**

and how the range is y>0
*May 24, 2015*

**math**

yes, about the vertical compression and strecth
*May 24, 2015*

**math**

is this function - y=3^x open up or down? is it a vertical stretch or compression?
*May 24, 2015*

**math**

y=3^x opens up or down? vertical stretch or compression vertex y-int domain and range
*May 22, 2015*

**Geography**

Ok thank you!
*May 20, 2015*

**Geography**

What are the conflicts in Somalia and Mexico and how do they compare and contrast? I'm not all sure about the conflict in Somalia, but I know that in Mexico they have drug wars and it is very violent. I also think that both Mexico and Somalia's problems tend to affect ...
*May 20, 2015*

**math**

The sum of the first 15 terms of an arithmetic series is 1290. The sum of the first 16 terms is 1464. Find t16. Find S20
*May 18, 2015*

**math**

A contest winner is given a choice of 2 prizes. Prize 1:$1 today, $2 tomorrow, $4 on day 3 and so on, for 30 days. Each day the winner recieves twice as much as the day before. Prize 2: $1 today, $3 tomorrow, $9 on day 3, and so on, for 20 days. Each day the winner recieves 3 ...
*May 17, 2015*

**math**

The sum of the first 15 terms of an arithmetic series is 1290. The sum of the first 16 terms is 1464. Find t16? Find S20
*May 16, 2015*

**L.A Ms. Sue? or anybody?**

it is 1. B 2. D 3. C
*May 11, 2015*

**french**

well, what they did for a living. one was a peasent and the other a Commissioner
*April 21, 2015*

**french**

both main characters come from different lives but thats all i can get... but i need 3 more
*April 21, 2015*

**french**

compare and contrast the play's George Dandin and Le Commissaire est bon enfant(1899) please and thank you.. im really stuck i already find two compare: both have male main characters, and both are unlucky but i need some contrast
*April 21, 2015*

**french**

i dont need to write a paper. i just can write it in point form
*April 21, 2015*

**french **

compare and contrast the play's George Dandin and Le Commissaire est bon enfant(1899) please and thank you.. im really stuck
*April 21, 2015*

**French**

compare and contrast the play's George Dandin and Le Commissaire est bon enfant(1899) please and thank you.. im really stuck
*April 21, 2015*

**math**

1/3x1/5=1/15 1/3x1/4=1/12 She read 10 books, so it can't be just a range from 12-15 books, so it's 120-150 books. Since it's greater or less, it can't be 120 or 150. It also says exactly 1/3, so the answer is 147 books. The number divisible by 3.
*April 8, 2015*

**English**

is that he gives her the lead role in the performance??
*April 6, 2015*

**English**

i meant that i read the novel in french, and it was an adaption by two other authors, and not Gaston Leroux
*April 6, 2015*

**English**

Im not sure. he tells her that he loves her
*April 6, 2015*

**English**

I have read the french adaption of the novel, for my french class
*April 6, 2015*

**English**

Yes i have
*April 6, 2015*

**English**

How does Erik (the phantom) from The Phantom of the Opera show romance?
*April 6, 2015*

**English**

I have one answer, but i need two more. I already wrote about how is deformity looks like.
*April 6, 2015*

**English**

No. That is the question.
*April 6, 2015*

**English**

Phantom of the opera. how does the theme of horror relate with Erik's (Phantom) face deformity?
*April 6, 2015*

**Math**

Sorry! its no real solution. because when you do discriminant i get a negative number so it would be no real solution
*April 6, 2015*

**Math**

One solution. if your talking about discriminant
*April 6, 2015*

**Math**

While golfing, Sahar hits a tee shot from T toward a hole at H, but the ball veers 23 degrees and lands at B. The scorecard says that H is 270 m from T. If Sahar walks 160 m to the ball(B), how far, to the nearest metre, is the ball from the hole?
*April 3, 2015*

**Math**

I got it now- thanks Ms. Sue!
*March 25, 2015*

**Math**

Rosa poured 1 3/4 quarts of grape juice into a container. She added 3 1/3 quarts of apple juice. She then poured 2 2/3 quarts of the mixed juice into a pitcher. How many quarts of mixed juice were left in the container? Is the answer 1/3?
*March 25, 2015*

**Math**

Thanks!
*March 25, 2015*

**Chemistry **

What volume of carbon dioxide is produced when 7.5g of butane react with 19g of oxygen gas at 74 degrees celsius at 550 torr?
*March 24, 2015*

**math**

The function h(t)= 2 + 50t - 1.862t^2, where h(t) is the height in metres and t is the time in seconds, models the height of a golf ball above the planet Mercury's surface during its flight. a) What is the maximum height reached by the ball b) How long will the ball be ...
*March 21, 2015*

**math**

Kool Klothes has determined that the revenue function for selling x thousand pairs of shorts is R(x) =-5x^2 + 21x. The cost function C(x) = 2x + 10 is the cost of producing the shorts. How many pairs of shorts must the company sell in order to break even
*March 17, 2015*

**math Functions**

The function h(t) = 2 + 50t -1.862t^2, where h(t) is the height in metres and t is the time in seconds, models the height of a golf ball above the planet Mercury's surface during its flight. A) What is the maximum height reached by the ball (would it be 1.862) B) How long ...
*March 9, 2015*

**algebra**

factor polynomial by grouping 3z^3+2z-12z^2-8
*March 5, 2015*

**healthcare**

Health care in Canada is funded by which government? I know Canadas healthcare system is funded by a provincial or territorial basis
*February 15, 2015*

**MATH**

FROM NOON TO 8 PM, THE TEMERATURE DROPPED 12.8 DEGREES. WHAT WAS THE HOURLY CHANGE IN TEMERATURE DURING THIS TIME??
*February 15, 2015*

**art**

Ms. Sue my school does not even provide me a science book. I don't have a art book either to help me out. So I come here to get help
*February 12, 2015*

**french**

Ok thank you so much it will help a lot
*February 9, 2015*

**french**

Ce que or ce qui? 1. _______ est evident pour tout le monde, c'est la raison de cette manifestation. 2. _________ le gouvernement va creer, ce sont des emplois pour les jeunes. I am having difficulty understanding when to use ce que or ce qui in a sentence
*February 9, 2015*

**religion**

It has to be anothers persons opinion, so yes your opinion
*February 8, 2015*

**religion**

What are benefits and challenges you can experience in trying to love according to biblical teachings? What are benefits and challenges you can experience among people of different cultures and faiths?
*February 8, 2015*

**Science**

Given the following balanced equation, determine the rate of reaction with respect to [O2]. 2 SO2(g) + O2(g) → 2 SO3(g)
*February 5, 2015*

**Science**

If the concentration of AgCl drops from 1.000 M to 0.655 M in the first 30.0 s of the reaction, what is the average rate of reaction over this time interval?
*February 5, 2015*

**Translate verbal expression into Algebraic express**

Five friends went to a baseball game. Three of the friends each bought a ticket for x dollars and a soda for $6.00. The other two friends each bought only tickets. Write and simplify an expression that represents the amount of money spent. Answer: 3x + 3(6) + 2x 3x + 2x + 16 ...
*February 4, 2015*

**health**

Why is health care recession proof?
*February 3, 2015*

**algebra**

I meant to say at the end that if: x=5 and y=2 and you plug them into the 2 equations that answer are different. x+y=6 (5)+(2)=7 , not true x-y=4 (5)-(2)=3 Hope this helps
*February 3, 2015*

**algebra**

x+y=6 -(x-y=4) ________ 2y=2 - - <divide both sides by 2, to get y 2 2 ______ y=1 Set x+1=6 x=6-1=5 ____Need to check y=2 and x=5 if its true -------- 5+2=7 not 4 5-2=3 not 4 {No solution}
*February 3, 2015*

**chemistry**

Find the percentage composition of (NH4)3PO4 What i dont understand is if the mass of the element isnt given how would i calculate?
*January 28, 2015*

**Math**

Hi Robin Yep that is correct.
*January 27, 2015*

**algebra**

y=20x+12 if x=number of hours rented example I want to rent the sailboat for 3 hours. The life jacket is a fixed number and doesnt change, so we just tack that on the the end of the equation. Y= total amount spent y=20(3)+12 y=72 (you spent 72 dollars for 3 hours on the boat)
*January 27, 2015*

**Algebra 2**

Whar are you trying to solve: =log 0.1 1000
*January 27, 2015*

**Physics**

h=1/2gt -2m=1/2gt -4m=gt -4m=(-9.8m/s^2)t -4/(-9.8m/s^2)=t
*January 27, 2015*

**Physics **

A small rocket is fired in a test range. It rises high into the air and soon runs out of fuel. On the way down it passes near an observer (sitting in a 21.5-m-high tower) who sees the rocket traveling at a speed of 35 m/s and moving in a vertical plane at an angle of 56° ...
*January 27, 2015*

**physics**

Please help... i am really stuck
*January 26, 2015*

**physics**

A 425 g model rocket is accelerated upward at 86 m/s2 by its engine. What is the value of the force exerted by the engine on the rocket?
*January 26, 2015*

**PLEASE PLEASE HELP ME **

i need one sigh of discrimination here's my work The most obvious form of discrimination is skin color. Crooks is segregated in view of his skin shade. “They play cards in there, but I can't play because I'm black. They say I stink.”(pg. 34) This quote ...
*January 20, 2015*

**English (of mice and men) PLEAS**

i need one sigh of discrimination here's my work The most obvious form of discrimination is skin color. Crooks is segregated in view of his skin shade. “They play cards in there, but I can't play because I'm black. They say I stink.”(pg. 34) This quote ...
*January 20, 2015*

**chemistry**

A 6.00 L balloon contains helium at SATP at ground level. What is the volume when it floats up to an altitude where the temperature is 10.0 degrees C and atmospheric pressure is 91.5 kPa
*January 18, 2015*

**Chemistry**

In an acid base titration 32.5 mL of sodium hydroxide, NaOH, were neutralized by 17.6 mL of 0.180 mol/L sulfuric acid, H2SO4. Calculate the concentration of the sodium hydroxide.
*January 12, 2015*

**Chemistry**

Write the total ionic and net ionic equations for each of the following reactions: A) hydrobromic acid with potassium hydroxide B) Nitric acid with barium hydroxide
*January 11, 2015*

**chemistry**

Classify each substance as either arrhenius acid or base: A) HF (aq) B) Ba(OH)2 (aq) C) H2SO4 (aq) D) NH4OH (aq) My work A) arrehenius acid B) arrhenius base C) arrhenius acid D) arrhenius base Am i right
*January 10, 2015*

**mah**

holly spend 7 and 3/5 hours in school each day. her lunch period is 1/2 hour long, and she spends a total of 7/10 hour switching rooms between classes.the rest of her day is spent in 6 classes that are all same length. how long is each class?
*January 7, 2015*

**language arts**

Thanks for the answers I got 100%!!
*January 2, 2015*

**Physics**

A block and tackle with a velocity ratio of 5 is used to raise a mass of 25kg through a vertical distances of 40cm at a steady rate.if the effort is equal to 60N,determine.(a)The distance moved by the effort.(b)The workdone by the effort in lifting the load.(c)The loss in ...
*January 1, 2015*

**chemistry. please help drbob222**

One of the reactions involved in the smelting of copper sulfide ores involves copper (I) oxide and copper (I) sulfide: 2Cu2O2 + Cu2S ---> 6Cu + SO2 Assuming that 35.00 g of copper (I) oxide is heated with 25.00 g of copper (I) sulfide A) determine which reagent is present ...
*December 7, 2014*

**chemistry check if my answers are right. drbobzz**

I also have another chemistry question that i am stuck on.
*December 7, 2014*

**chemistry check if my answers are right. drbobzz**

So A would be 147.5 and C) 33.22
*December 7, 2014*

**chemistry check if my answers are right. drbobzz**

A) mass of O2 = (48.0 C2H2/26.04 g/mol)(5O2/2C2H2)(16.00 g/mol) = 73.7 g of oxygen C) mass of H2O = (48.0 g C2H2/26.04 g/mol)(2H2O/2C2H2)(18.02 g/mol) = 14.8 g of water
*December 7, 2014*

**chemistry check if my answers are right. drbobzz**

Acetylene gas(c2h2) is used in welding. During one job a welder burns 48.0 g of acetylene. Using a balanced equation for the complete combustion of acetylene calculate the following. Equation 2C2H2 + 5O2 ---> 4CO2 + 2H2O A) the mass of oxygen used B) the mass of carbon ...
*December 7, 2014*

**chemistry **

Acettlene gas (C2H2) is used in welding. During one job, a welder burns 48.0 g of acetylene. Using a balanced equation for the complete combustion of acetylene, calculate the following: Balanced Equation a) the mass of oxygen used b) the mass if carbon dioxide produced c) the ...
*December 6, 2014*

**Chemistry**

CuSO4.xH2O Determine the percent by mass of water in your sample of hydrated copper (II) sulfate. Show your calculations clearly. My work. i got 10% is that correct
*December 1, 2014*

**physics**

The temperature of the air is 20.0 degrees Celsius when a tourist drops a coin into a wishing well. She hears the splash 5.30 s after drops the coin. If air resistance is ignored, how deep is the well?
*November 29, 2014*

**Physics**

so is the answer D correct?
*November 28, 2014*

**Physics**

Which wave of the following wavelengths could not make a standing wave in a 1.0 m string, with nodes at both ends? A. 2.0 m B. 1.0 m C. 0.75 m D. 0.50 m E. 0.25 m i think the answer is D
*November 28, 2014*

**Physics**

ok thank so much! it makes senses
*November 28, 2014*

**Maths**

Jake mixes pineapple, orange and lemonade in the ratio of 1:2:4. If he has 3 parts pineapple, how much orange and lemonade does he need?
*November 25, 2014*

**biology**

Are Lilac flowers vascular or non vascular
*November 22, 2014*

**Biology**

Is a Lilac Flower: a) Vascular or non-vascular b) Gymnosperm or angiosperm c) Monocot or a dicot My Work i know c) is dicot but i am not sure of the other two
*November 20, 2014*

**Physics**

A woman on a bicycle traveling at 10m/s on a horizontal road stops pedaling as she starts up a hill inclined at an angle of 10° to the horizontal. How far up the hill does she travel before coming to rest? I really don't understand this question. Please help!
*November 19, 2014*

**Physics **

A meteorite weighing 1860N strikes the earth with a velocity of 45.2m/s. What is its kinetic energy? Write in SN to one decimal place. When I plugged in (1/2)(1860N)(45.2m/s)^2, I got the answer 1.9e6, but it was incorrect. Please help. I'm really confused!
*November 19, 2014*

**Algebra please help out**

Two games went a total of32 mins one goes 12mins longer than the other .use letter to represent the unknown. Solve the problem
*November 19, 2014*

**Physics **

Calculate the power needed from the motor of an elevator for it to be able to lift a 1x10^4kg mass a distance of 20m in 5s. (Enter your answer in scientific notation utilizing "e" format and rounding the decimal value to one decimal place.) I used the equation p = w/...
*November 19, 2014*

**arithmetic**

How do I solve 15x=75?
*November 16, 2014*

**arithmetic**

How do I solve .15x=75
*November 16, 2014*

**arithmetic**

If you spent 85% of your money and have only $75.00 left, how much money did you start with?
*November 16, 2014*

**machnics**

The equations of motion are derived from the indefinite integral of acceleration.verify
*November 6, 2014*

**Astronomy**

How much does the luminosity of a spherical source of blackbody radiation increase if you triple its size?
*November 3, 2014*

**Astronomy**

If some external force were able to compress the sun, how would the sun react and why?
*November 3, 2014*

**chemistry**

I dont understand
*November 2, 2014*

**chemistry **

Complete and balance the following reactions, where applicable. If no reaction occurs, write N.R. Li + H2O ----> KCI + F2 ---> Au + HNO3 ---> CI2 + NaF ----> Li + Fe(NO3)3 --->
*November 2, 2014*

**Physics**

Three children are fighting over a toy. One child pulls on the toy with a force of 100N at an angle of 37° north of east. The second child pulls on the toy with a force of 200N south. The third child pulls with a force of 250N at an angle of 20° south of west. Watching...
*October 31, 2014*

**Physics**

A satellite orbits a planet at 4000m/s, and the acceleration of gravity (centripetal acceleration) on the satellite is 0.58m/s2. What is the diameter of the orbit of the satellite? (Enter your answer in scientific notation utilizing "e" format and rounding the ...
*October 31, 2014*

**Physics**

A cord 0.65m long exerts a centripetal force of 23N on a whirling 2kg mass tied to the end of the cord. What is the velocity of the whirling mass? Round to nearest tenth. For this problem, I used to formula V = square root of f/rm. I did the square root of 23/0.65(2) = 8.4m/s^...
*October 31, 2014*

**MATH ASAP**

2.)D-about 20 3.) A- about 48 4.) A- about 8 5.) C- 3 modes What number is underlined on #1?
*October 30, 2014*

**Biology**

A couple has a child with an autosomal recessive form of glycogen storage disease, a deficiency of a lysosomal enzyme. An enlarged liver and heart and weak muscles cause the baby to die from heart and lung failure at 20 months. Now the woman is pregnant again. Her doctor ...
*October 21, 2014*