Friday
December 9, 2016

Posts by bob

Total # Posts: 3,140

science chemistry
A basic amino acid,arginine,has a molar mass of 174g.mol^-1.it has the following percentage composition:41,38% carbon, 18,39% of oxygen,32,18% of nitrogen and 8,O5% of Hydrogen.determine the molecular formular of arginine
June 14, 2015

math
If one bag of skittles contains 1 and 1/4 cups then how many bags of skittles would 12 cups of skittles be divided into?
June 11, 2015

geometry
the answer is 10
May 28, 2015

Chemistry
A 50 ml sample of .150M Ch3CooH is titrations with .150 M NaOh solution. Calculate the ph after the following volumes of base have been added: 49 ml, 51ml
May 27, 2015

LA
Hey Ms.Sue, its pretty obvious what this site is used for. If you havent gotten that yet, then let me explain this to you: student give student answers, mostly from connections academy, and other online schools.
May 22, 2015

The giver
For connexus these are wrong i just got 0/3 f**k
May 19, 2015

LA
I was not asking for anyone to just give me an essay a website was fine but now I got my answer
May 14, 2015

LA
In the play the importance of being earnest by Oscar Wilde. How are the characters jack and lager in developed through the use of dialogue? How are these characters similar? How are they different?
May 14, 2015

LA the giver chapters 1-2
B C B D These are correct answers for connection academy
May 13, 2015

math
logb3=1.099 logb8=2.079 find logb216 i am just lost on what to do
May 11, 2015

Calculus
I BELEAVCE IT IS CORRECT
May 8, 2015

history
would it be a
May 8, 2015

math
6.3
May 6, 2015

chemistry
select one acid, one base, and one salt and describe specifically how and where they are used in therapeutic processes.
May 6, 2015

Social Studies
d
May 6, 2015

math
6 minutes
May 5, 2015

science
31 mL servings, 170 left over
May 5, 2015

science
thx Ms. Sue :)
May 5, 2015

science
Earth's energy sources include both nonrenewable and renewable resources. Name at least three sources of energy that could be used in your house. The describe the ideal energy source for generating most of your home's electricity, and explain why you chose that source...
May 5, 2015

chemistry
what is a mole
May 5, 2015

physics
X=V^2 / 2(mu)(9.8) X=4.1m
May 3, 2015

Chemistry
250.0 mg solid magnesium placed in 9.1 g aqueous zinc nitrate... What is the limiting reagent? I balanced the equation: Mg (s) + 2HNO3 (aq) -> Mg(NO3)2 (aq) + H2 (g) 250 mg 9.1 g
May 1, 2015

math
jamie is joining a music club as part of her 4-cd introductory package she can choose from 12 rock selection, 10 alternative selection 7 country selections and 5 classical selection if jamie chooses on selection from each category how many ways can she choose her introductory ...
April 29, 2015

Physics
1.36
April 26, 2015

math
a=70
April 22, 2015

math
2a-140
April 22, 2015

math
140
April 22, 2015

SS 6th grade
Does anyone have the answers to the test
April 21, 2015

math
A study of two types of weed killers was done on two identical weed plots. One weed killer killed 15% more weeds than the other. This difference was significant at the 0.05 level. What does this mean? A. The improvement was due to the fact that there were more weeds in one ...
April 17, 2015

math
If you have a twelve gallon bucket, a seven gallon bucket, and a six gallon bucket, how can you get exactly nine gallons into one bucket
April 16, 2015

algebra
the isotope has a very short life of 13 half-life days. estimate the percentage of the original amount of the isotope released by the explosion that remains 3 days after the explosion?
April 16, 2015

statistics
The distribution of B.A. degrees conferred by a local college is listed below, by major. Major Frequency English 2073 Mathematics 2164 Chemistry 318 Physics 856 Liberal Arts 1358 Business 1676 Engineering 868 9313 What is the probability that a randomly selected degree is not ...
April 16, 2015

biology
Ms. Sue, woyls it be B?
April 13, 2015

SS Help!!
Latfia is right
April 13, 2015

geometry
have 2 || lines C and d. lines intersect lines are a and b. On a, has 2 alternate interior <s 95 and x; 2 al. exterior <s 95 and 85 degrees. On b, consecutive interior <s 72 and y. What is x and y. Please explain reasoning in paragraph proof.
April 12, 2015

Integration
Integrate: ∫ x^2(x^2+1)sqrt(4-2x^3-x^4) dx
April 11, 2015

physics
A cat usually lands on its feet regardless of the position from which it is dropped. A slow-motion film of a cat falling shows that the upper half of its body twists in one direction while the lower half twists in the opposite direction. (See figure below.) Why does this type ...
April 10, 2015

Calculus
List x1, x2, x3, x4 where xi is the right endpoint of the four equal intervals used to estimate the area under the curve of f(x) between x = 3 and x = 5. 3, 3.5, 4, 4.5 3, 3.2, 4.6, 5 3.5, 4, 4.5, 5 3.25, 3.75, 4.25, 4.75 my answer was a because i kept getting numbers like 3, ...
April 3, 2015

math
1/4 of henry sticker is equal to 2/3 of daisy. difference in number of sticker each of them has is 135. how many stickers do they have in all?
April 2, 2015

math
Sam and Jill had 576 stamps in all. Sam gave 1/7 of his stamps to Jill. Then Jill gave 1/4 of the total number of stamps she now had to Sam. In the end, both of them had the same number of stamps. What was the difference in the number of stamps they each had at first?
April 2, 2015

math
Esth had five times as many cards as Rich. Esth gave 1/4 of her cards to Rich. Rich. gave 1/6 of his cards to Esth in return. In the end, Esth had 90 cards more than Rich. How many cards did Esth have at first?
April 2, 2015

Algebra 2
Use trigonometric identities to solve each equation for the given domain. sin 2θ = -cos θ for 0 ≤ θ < 2π *Anyone who has any idea which identity to use is welcome to help
April 1, 2015

Math / Algebra 2
Use trigonometric identities to solve each equation for the given domain. sin 2θ = -cos θ for 0 ≤ θ < 2π *Anyone who has any idea which identity to use is welcome to help.
April 1, 2015

algebra
The angle of elevation from the tip of the shadow to the top of the tree is 36°. Find the distance from the top of the tree to the tip of the shadow. Round the answer to the nearest tenth.
March 30, 2015

math
it doe snot say
March 30, 2015

math
An office supply company is shipping a case of wooden pencils to a store. there are 64 boxes of pencils in the case. If each of pencils weighs 2.5 ounces, what is the weight, in pounds, of the case of wooden pencils?
March 30, 2015

math
Please show your work. Tutors will not do your homework for you. Please show your work for any question that you are posting.
March 29, 2015

chemistry
dissolving 4.022 g of a salt in 100 mL of water changes temperature by -1.2^oC: what is the heat absorbed? The specific heat of water is 4.184 J/(g*C)
March 28, 2015

us history
a
March 26, 2015

social studies
erfvb yu,kli...cwd
March 24, 2015

Science
thx reed :)
March 19, 2015

Science
Ok I will go back through my lesson and check #3 thx :)
March 19, 2015

Science
1. Which type of weather technology often carries cameras that can make images of Earth's surface, clouds, and snow cover? A. weather balloon B. weather satellite**** C. computer D. automated weather station 2. Why are weather forecasts more reliable now compared to ...
March 19, 2015

chemistry
0.0034 Mol of CaCl2
March 18, 2015

math
How many square yards of carpeting are needed to cover the floor of a rectangular room that is 21 ft. long and 12 ft. wide?
March 17, 2015

Accounting
E13 Selected account balances of the Lakeside Grocery Store for the year ended December 31, 20xx, follow. Beginning merchandise inventory was $ 26,000, and ending merchandise inventory is $ 22,000. Prepare closing entries, assuming that the owner of Lakeside Grocery, John ...
March 16, 2015

Statistics
Okay, but what if the maximum that each box can hold is 2?
March 14, 2015

Statistics
How many different ways can you put 3 distinguishable things in 10 boxes?
March 14, 2015

SOCIAL STDIES HELP! 8th
Connetions
March 11, 2015

Chemistry
What is the pH of a solution made by mixing equal vlumes of .10 M HC2H3O2, .1 M NaOH, and .05 M HCl?
March 10, 2015

physics
incorrect
March 10, 2015

physics
A plastic rod is rubbed against a wool shirt, thereby acquiring a charge of −4.9 µC. How many electrons are transferred from the wool shirt to the plastic rod? The elemental charge is 1.6 × 10−19 C.
March 10, 2015

Art
SORRY NUMBER TWO IS C
March 9, 2015

Art
THE ANSWER ARE NUMBER ONE IS D AND NUMBER TWO IS B
March 9, 2015

physics
72
March 6, 2015

Chemistry
A .2688-g sample of a monoprotic acid neutralizes 16.4 mL of .08133 M kOH solution, calculate the molar mass of the solution? First of all how can I calculate the molar mass?
March 5, 2015

math
A rectangular tank measures 30cm by 15 cm by 20 cm. It contains water to a depth of 15 cm. How many metal cubes of edge 5 cm need to be placed in the water to raise the water level to the brim of the tank?
March 4, 2015

math
joking its good
March 4, 2015

math
check good it bad hahahaha
March 4, 2015

Art Help!!! Thank you
these are all right 100% GARANTEE
March 3, 2015

math
15 isss wronggggggg
March 3, 2015

math
none
March 3, 2015

physics
lol idk dis bull
February 28, 2015

Art
lol
February 28, 2015

Science
What is a conducter
February 26, 2015

Physics 1
192.70
February 26, 2015

Science
What are insulaters
February 26, 2015

math
I= (400)(0.09)(2) I= 72
February 25, 2015

chemistry
An ice cube weighing 22.7 g at a temperature of 0.0°C is added to 125 mL of water at 27.1°C in an insulated container. What will be the final temperature after the ice has melted?
February 22, 2015

Geometery
From Pyth thereom,AB =root (35^2+60^2)= 5 root(193) Height CN=AC*CB/ AB= 60*35/ 5 root(193)= 420/root(193) Now find CT Tan40 = CT/ DC But DC= 60 root 2 ( it is hyp of rt triangle ADC) CT= DC tan 40= 60 root 2 * 0.84 Angle of elevation of TN is Arc Tan(CT/CN)= Arc tan (60 root ...
February 22, 2015

Geometery
A, B, C and D are on horizontal level ground and CT is vertical pole. B is 35 m due east of C, A is 60 m South of C and D is 60 m West of A. Calculate the angle of elevation of T from N. I m really suck...plz help
February 22, 2015

chemistry
How many grams of water are required to completely hydrolyze 0.54 grams of lidocaine? What type of be equation should be used?
February 19, 2015

ECONOMICS
What do YOU think?
February 18, 2015

math
Ahaha ghee
February 11, 2015

Science!!!
Is he right??
February 11, 2015

Math
in square meters plz
February 11, 2015

Math
ok so how do I solve the problem
February 11, 2015

Math
tiles cost 28 per square meter. How much will it cost to cover the countertop with new tile
February 11, 2015

Math
what is the area of the countertop in square meters
February 11, 2015

Math
A countertop is 16 feet long and 3 feet wide
February 11, 2015

Chemistry
Are you in Mr. Leingang's class?
February 10, 2015

chemistry
If the intial rate of the reaction produces 2 moles of water vapor, H2O, per second, what is the rate at which oxygen, O2, is consumed initially?
February 10, 2015

Math
its number 2 bro
February 10, 2015

Calculus
Graph the function f(x)=x+4/x Graph the secant line that passes through the points (1,5) and (8,8.5) on the same set of axes Find the number c that satisfies the conclusion of the Mean Value Theorem for f on [1,8] c= Notice that if you graph the tangent line to the point (c,f(...
February 8, 2015

Math
Hey Daisy. Plot your data points on desmos it'll help. Once plotted, this question is awfully easy.
February 7, 2015

Physics
A stationary observer hears a sound with a frequency of 450 Hz from an approaching car. If the car emits the sound at a frequency of 360 Hz, what would be the speed of the car? (Speed of sound 340 m/s)
February 6, 2015

language arts
The speaker feels confident
February 5, 2015

CHEM
what is the mass percentage if you dissolve 0.659 mol of citric acid, C6H8O7, in 1.00 kg of water.
February 1, 2015

Algebra
Well your answer is wrong and you should use IXL it help alot.
February 1, 2015

Algebra
Tom curry apple jacks
February 1, 2015

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