Friday
December 19, 2014

Posts by jess


Total # Posts: 857

bookkeeping
the amounts that increase the cash account are entered in what column?
December 8, 2014

chem
A weak acid, HA, has an ionization constant of 9.29 x 10-6. If we prepare a solution that is 0.727 M in HA what percent of the acid will be ionized?
November 30, 2014

chem
The Ka of an acid is 6.3 x 10-8. To the nearest one hundredth, what is its pKa
November 30, 2014

Chemistry
1. Write a balanced molecular equation for the reaction of solid AgNO3 with aqueous NaCl. Be sure to include the correct number of coefficients and the state of the species (aq, s, l or g). 2. Write the total ionic equation for this reaction, including all physical states. 3. ...
November 26, 2014

Chemistry
1. A combination reaction may also be a displacement reaction. True or False 2. The combustion of an element is always a combination reaction. True or False For number 1, I first thought true, but then again, nothing is being displaced in a combination reaction, right? You are...
November 19, 2014

Physics
Mass 1 with a unknown mass starts at rest at the top of a frictionless from a height of 13 meters. It then slides down the incline and moves over a horizontal frictionless surface and collides inelastically (head on) with mass 2 which is 25.4 kg and initially at rest. After ...
November 11, 2014

Chemistry
Sorry for the double post. Just saw that my original question actually posted though I was told it had not.
November 1, 2014

Chemistry
A 0.2800 g sample of an unknown acid requires 28.22 mL of 0.1199 M NaOH for neutralization to a phenolphthalein point. a.) How many moles of OH- are used? b.) How many moles of H+ are found in the acid? c.) What is the calculated equivalent molar mass of the unknown acid? If I...
November 1, 2014

Chemistry
A 0.2800 g sample of an unknown acid requires 28.22 ml of 0.1199 M NaOH for neutralization to a phenolphthalein end point. a.) How many moles of OH- are used? b.) How many moles of H+ are found in the acid? c.) What is the calculated equivalent molar mass of the unknown acid? ...
October 31, 2014

Math
In three successive years the price of the common shares of Bedrock Resources Ltd. fell 40%, 60%, and 70% ending the third year at 50 cents. a. What was the share price at the beginning of the three-year skid? b. How much (in dollars and cents) did the share price drop in the ...
October 27, 2014

STATISTICS HELP!!!!!
That's what I got is it correct?
October 24, 2014

STATISTICS HELP!!!!!
a. 0.214 b. 0.787
October 24, 2014

STATISTICS HELP!!!!!
Bender Electronics buys keyboards for its computers from another company. The keyboards are received in shipments of 175 boxes, each box containing 30 keyboards. The quality control department at Bender Electronics first randomly selects one box from each shipment and then ...
October 24, 2014

Science Density
Water has a density of 1.0g/cm3. Aperson sits in a bath 150cm in length and 90 cm width. Thw water had a depth of 60cm befor the person sat in the bath. after sitting in the bath the water level rose to 68cm. Calculate the mass of the person, giving your answer in kg.
October 22, 2014

Science -Density
gold has a density of 19.30 g/cm3 . What si the mass of a bar of gold 15 cm x5 cm x 8 cm
October 22, 2014

Chemistry
Use standard enthalpies of formation to determine ΔHorxn for: 2C2H2(g) + 5O2(g) → 4CO2(g) + 2H2O(l) Enter in kJ.
October 21, 2014

College question
Thanks!
October 9, 2014

College question
I did my personal essay but I'm not sure if that's the one I'll be submitting. I might rewrite it. I'm applying to city college, hunter, university at buffalo, pace university, binghamton university, le moyne college, st.john's university, and hofstra ...
October 9, 2014

College question
I checked and it said they accept scores between 1660 and 1980, so I don't think they really look at writing. And for the transfer students they don't look at sat or act scores
October 9, 2014

College question
My math score was 570 Writing 570 Reading 550
October 9, 2014

College question
Thank you!
October 9, 2014

College question
Sorry, Stony Brook University
October 9, 2014

College question
I'm a high school senior and I'm planning on applying to SBU. I have a 4.0 gpa, a 1690 on the SAT(am going to retake), a 24 on the ACT, took 3 AP classes and am currently taking 2 more, part of National Honor Society, in the top 5% of my school, have an advanced ...
October 9, 2014

Algebra 1
I have been trying to figure out how to solve multi-step equations. Such as 1/2x+1/4x=16. How do you solve these? I can't seem to figure it out.
September 29, 2014

Finite
A box contains 8 blue balls, 3 white balls, and 5 red balls, and that we choose two balls at random from the box. What is the probability of neither being blue given that neither is white?
September 25, 2014

CHEMISTRY
How to determine direction of polarity? For instance im studying from a practice quiz, an it says that in CH3OH the oxygen is slightly negative, which is understandable as its next to F. but then it says the H is slightly positive. why the H and not the carbon which is two ...
September 24, 2014

Organic Chemistry
Label each reactant according to it role or roles in the chemical reaction? Two different (OH-) + (HBr) ----> (HOH) + (Br-) (OH-) + (H3CBr) ----> (H3COH) +(Br-) Lewis base, bronsted base, nucleophile, lewis acid, bronsted acid, nucleophile
September 15, 2014

Organic Chemistry
Consider the resonance structures for the carbonate ion. O--C-O(-) l O(-) (-)O-C--O l O(-) (-)O-C-O(-) l l O How much negative charge is on each oxygen of the carbonate ion? A)0, B) -.33, C)-.50, D) -.67, E)-1.00, F)-1.33, G)-1.50, H)-1.67, I)-2.00 What is the bond order of ...
September 15, 2014

CHEMISTRY
if you copy the link from beginning to end itll paste easily into a search bar.
September 7, 2014

CHEMISTRY
Ch3CN(CH3)C2H5 is my kekule drawing ok? I drew it and uploaded a picture. oi61. tinypic . com/2vmztir.jpg
September 7, 2014

calc
Two paths represented by [x, z] = [-82.2, 43] +s [0.2, 1.7] and [x, y] =[-84.4, 45.5] +t [2.4 -0.9]. Determine the intersection of the two paths.
July 6, 2014

Chem URGENT
How much energy (in kilojoules) is released when 13.3g of steam at 114.5∘C is condensed to give liquid water at 67.0∘C? The heat of vaporization of liquid water is 40.67 kJ/mol, and the molar heat capacity is 75.3 J/(K⋅mol) for the liquid and 33.6 J/(K⋅...
June 17, 2014

Pre-Algebra
How would I also solve the following? f(x)=x^2-4+3 what is the output of f(-3)?
June 3, 2014

Pre-Algebra
n(n-1)-4 How do I solve stuff like this?
June 3, 2014

English
This piece focuses on the increase use of smartphones of youths in South Korea. Should I reword that phrase?
May 14, 2014

math
A Jewlery box has length of 3 and a half, a width if 1 and a half, and a height of 2 units. What is the volume if the box I cubic units? Each of the cubes in this activity has a side length of 1/2. How many cubes with side length 1/2 does it take to form a unit cube? How many ...
May 6, 2014

us history
can you check my answers please? The “silent majority” referred to A. conservative working- and middle-class citizens B. women C. a liberal coalition of ethnic minorities, women, the aged, and the poor D. the nation’s youth E. deaf-mutes in government programs I...
April 28, 2014

Class Board
Characteristics and talents that will make me a great leader and member of Class Board is that I am helpful. Helping with homework, simple tasks, struggles that one faces, or providing ideas is a way of how I exemplify this characteristic. I also enjoy doing volunteer work. ...
April 24, 2014

Class Board
Would volunteering be considered as a talent/characteristic?
April 24, 2014

Class Board
What characteristics and talents in addition to these do you possess that will make you a great leader and member of the class board and how do you exemplify those? I don't really understand the part where it says "exemplifies" what does that mean?
April 24, 2014

Geometry
In a garden, a birdbath 2ft 6 in. tall casts an 18-in. shadow at the same time an oak tree casts a 90-ft shadow. How tall is the oak tree?
April 14, 2014

english essay
ok
March 26, 2014

english essay
Ofcourse, I know Science and Chemistry are not issues but I want to know an issue related to this particular subject.I do not If you understood or not.
March 26, 2014

english essay
* I need help writing research essay. The topic is to write about an issue or problem that you want to change. Well, I am mostly interested in Science, particularly Chemistry and Nature.
March 26, 2014

Math
the directions for lemonade say to put 2 cups of liquid concentrate into one gallon of water. if olivia only wants to make one pint of lemonade, how many fluid ounces of concentrate should she put?
March 23, 2014

biology
I need help with what is happening inside the mitochondria. may help me what's happening 0-50 secondes. h t t p: // w w w.y o u t u b e.c o m / watch ?v=RrS2uROUjK4
March 21, 2014

Pre-Algebra
I don't have an account. It says that you need one
March 7, 2014

Pre-Algebra
How do you find the surface area of cones and cylinders?
March 7, 2014

history
As president, Grover Cleveland antagonized A. Western cattlemen and businessmen by restoring many acres of public lands to the federal government B. Democrats by putting many of his fellow Republicans into political positions C. Mugwumps by allowing “pension raids” ...
March 1, 2014

us history
The intellectual leader of the Social Gospel in America was my book speaks of William Rainsford, Washington Gladden, and Walter Rauscchenbusch but doesnt say who the actual leader is?
March 1, 2014

us history
Urban political bosses were often the largest source of assistance for city dwellers. true or false? this is true right?
March 1, 2014

us history
The growth of the railroads was a major cause of American expansion in the late nineteenth century. true or false? is this true?
March 1, 2014

English
correct the following sentence: elvis our cat play with his toy and then he played on the scratching post There are 6 errors but I could only find 5. Elvis, our cat played with his toy, and then he played on the scratching post.
February 25, 2014

Math
It is composed of 12 regular pentagonal faces.
February 19, 2014

math
thank you :)
January 17, 2014

math
Four runners ran the relay, Bill ran his lap in 22.738 seconds, Troy ran in 21.874 seconds, Grace ran in 20.32 second, and Jessica ran 19.047 seconds. Estimate the team's total time to the nearest tenth of a second
January 17, 2014

math
ok so it would be 4.25, 5, 6.5, 7.25
January 17, 2014

math
complete the sequence of numbers 4.25, 5, 5.75, _______, ______ ?
January 17, 2014

math
Writing to explain: The digit 5 is usually rounded up, but it can also be rounded down. How would you round the numbers in the equation 9.5 +4.7+3.2+7.5= to the nearest whole number without getting an overestimate or an underestimate?
January 17, 2014

business math
compute the amount of compound interest earned in 1 year for an investment of 1,000,000 with a nominal interest rate of 8% compounded quarterly.
January 13, 2014

Science
for the question 17 the answer is heat
January 10, 2014

law
judges in custody cases may interview the subject children outside the presence of the parents only if the attorneys are present? is this true or false
December 10, 2013

Geometry
Quadrilateral RUBY is a rectangle. Which of the following statements MUST be true? Check all that apply: [] All four of the sides of RUBY are equal. []All four of the angles of RUBY are equal. []RUBY has two pairs of parallel opposite sides.
December 9, 2013

Calculus
Gerber Banana Plum Granola costs $0.89 per 5.5-oz serving; each serving contains 140 calories, 31 g of carbohydrates, and 0% of the recommended daily allowance of vitamin C. Gerber Mixed Fruit Carrot Juice costs $0.79 per 4-oz serving; each serving contains 60 calories, 13 g ...
December 2, 2013

Finance - Capital Budgeting/Cost-cutting
Caradoc Machine Shop is considering a four-year project to improve its production efficiency. Buying a new machine press for $560,000 is estimated to result in $210,000 in annual pre-tax cost savings. The press falls into Class 8 for CCA purposes (CCA rate of 20 percent per ...
December 1, 2013

Finance - Capital Budgeting/Bid Price
We have been requested by a large retailer to submit a bid for a new point-of-sale credit checking system. The system would be installed, by us, in 89 stores per year for three years. We would need to purchase $1,300,000 worth of specialized equipment. This will be depreciated...
December 1, 2013

Accounting
Here is the income statement with all the numbers and accounts (This is a university in Canada by the way) i42. tinypic. com/ ws4i91. jpg (copy and paste without the spaces)
November 23, 2013

Accounting
I am doing a report on finding the major challenges in the future of my university with regards to their revenue and expenses. I have to discuss the main financial obstacles faced by the university and explain why each presents problems with future planning / budgeting. On the...
November 23, 2013

Calculus - Integrals
The projected rate of increase in enrollment at a new college is estimated by dE/dt = 6,000(t+1)^-3/2 where E(t) is the projected enrollment in t years. If the enrollment is 3,000 now (t=0), find the projected enrollment 15 years from now.
November 21, 2013

algebra
how do you find the x & y intercept of the equations y=-3 x=4 without graphing them?
November 18, 2013

Calculus - Optimization
A fence is to be built to enclose a rectangular area of 800 square feet. The fence along 3 sides is to be made of material $4 per foot. The material for the fourth side costs $12 per foot. Find the dimensions of the rectangle that will allow for the most economical fence to be...
November 17, 2013

Calculus - Optimization
A parcel delivery service a package only of the length plus girth (distance around) does not exceed 24 inches. A) Find the dimensions of a rectangular box with square ends that satisfies the delivery service's restriction and has a maximum volume. What is the maximum ...
November 16, 2013

Calculus
What would the derivative of c(x) = (10 - x) + 1.4*sqrt((x^2) + 25)
November 15, 2013

Math
Does an x and y intercept of 0 mean that there is no x or y intercept? Or is 0 an intercept?
November 11, 2013

Calculus
P(x) = 12x / (1-x) What are the critical points and where is P(x) increasing and decreasing?
November 10, 2013

Calculus
Find the critical points of f(x) = 0.05x + 25 + (180/x)
November 10, 2013

Grd 12 Math
Can someone please help me work out how to get to the answer of: tanx + tan (pi-x) + cot (pi/2+x) = tan (2pi-x)
November 6, 2013

Calculus
Given V(t) = 125,000e^(t/8) find V('t)
November 3, 2013

Math - Derivatives/Logrithms
An office machine is purchased for $6000. Under certain assumptions, its salvage value, V, in dollars, is depreciated according to a method called double declining balance, by basically 71% each year, and is given by V(t) = 6000(0.71)^t, where t is the time in years after ...
November 1, 2013

Accounting - please check my answers
Dogwood florist opened a business January 1st 2010. During 2010, they had the following transactions and economic events. For each of the transactions and economic events prepare the adjusting entries and show the related transaction entries at the date that each would be made...
October 30, 2013

math
the length of a rectangular garden plot is twice the width of the plot.if the fence around the garden is 600 ft long,what is the length of the garden plot?
October 28, 2013

math
i meant the last problem you typed
October 25, 2013

math
the problem is r^3r^4/r^-2r^-5
October 25, 2013

math
r^3r^-4/4^-2r^-5 i tried doing r^3/r^-2 x r-4/r-5 & got r^5,r^1 but the answer is r6, what am i doing wrong?
October 25, 2013

math
x^7/x^-4 my book says the answer is x11, but how? aren't you supposed to subtract the exponents when dividing?
October 25, 2013

math
9^-1/9 the formula for this is b^m/a^n but when you do it it doesn't equal 1/81?
October 25, 2013

math
3^-5/3^-2 becomes 1/3^5/1/3^2 the answer is 1/27, how did they get that? i need step by step to understand
October 25, 2013

Math - Limits
sorry, it's "t approaching to infinity"
October 25, 2013

Math - Limits
N(t) = 100t / (t + 9) where t >=0 Find lim x approaching to infinity N(t)
October 25, 2013

Marketing
Nevermind, I figured it out!
October 25, 2013

Marketing
I need help filling in the blanks for this price chain in marketing: Manufacturer's Price.............$15.55 Manufacturer's Variable Costs....$6.35 Manufacturer's $ Margin..........$9.20 Manufacturer's % Margin..........59.2% Wholesaler's Price...
October 25, 2013

Math
How do you find the intersection of the lines 5x + 2y = 60 and 3x + 2y = 45?
October 24, 2013

Math
A charter fishing company buys a new boat for $224,000 and assumes that it will have a trade-in value of $115,200 after 16 years. Find a linear model for the depreciated value V of the boat t years after it was purchased.
October 23, 2013

Math - Limits/Derivatives
If a price-demand equation is solved for p, then price is expressed as p = g(x) and x becomes the independent variable. In this case, it can be shown that the elasticity of demand is given by E(x) = - [g(x) / xg'(x)]. Use the given price-demand equation to find the values ...
October 19, 2013

Math - Limits/Derivatives
Suppose that for a company manufacturing calculators, the cost, revenue, and profit equations are given by C = 70,000 + 20x R = 300x - (x^2 / 20) P = R - C where production output in 1 week is x calculators. If production is increasing at a rate of 600 calculators per week ...
October 19, 2013

algebra
in the bible, a verse describes a circular pool at king solomon's temple, about 1000 B.C. The pool is said to be ten cubits across, "and a line of 30 cubits did compass it round about." what value of pie does this imply? don't understand the problem or why ...
October 13, 2013

math
why is every integer a rational number?
September 29, 2013

math
how do you figure out the pattern of 1,4,9,16?
September 28, 2013

Math
9x^4 - 148x^2 + 64
September 28, 2013

Math - Functions
r = -5x^2 + 73x Can someone show me the steps to complete the square for that equation? I don't really understand them.
September 22, 2013

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