Saturday
August 29, 2015

Posts by Jackie


Total # Posts: 883

Math 208
nico is saving money for his college education. He invests some money at 6%, and $1400 less that that amount at 5%. The investments produced a total of $172 interest in 1 yr. how much did he invest at each rate?
May 20, 2013

Social studies
How did monteqeieus system reflect John lockes ideas about government ?
May 19, 2013

Math
A kite is 32m above from the ground. The angle the kite string makes with the ground is 39°. How long is the kite string, to the nearest metre?
April 29, 2013

Math
For a Normal distribution with mean, mu=2, and standard deviation, sigma = 4, 70% of all observations have values between x and y . (Round to 4 decimal places.)
April 15, 2013

chemistry
Fe2O3(s) + 3H2(g) = 2Fe+3(s) + 3H2O (lig) -6e Fe(III) = +3 Oxygen = -2 Fe(III) Oxide then would need 2 Fe(III) to give +6 and 3 Oxygen to give -6 in valence charges to give a neutral molecule.
April 15, 2013

Algebra
Need help finding composition of functions. I am doing something wrong continue to get wrong answer f(x)=x+6/x+5, g(x) = 2x-7. Find (fog)(x)
March 25, 2013

chemistry
i would like to know how to work through it
March 23, 2013

chemistry
What fraction of piperazine (perhydro-1,4-diazine) is in each of its three forms (H2A, HA–, A2–) at pH 8.98?
March 23, 2013

chemistry
Determine [Zn2 ], [CN–], and [HCN] in a saturated solution of Zn(CN)2 with a fixed pH of 1.78. The Ksp for Zn(CN)2 is 3.0 × 10–16. The Ka for HCN is 6.2 × 10–10.
March 23, 2013

chemistry
Consider a solution made by mixing 500.0 mL of 0.04182 M Na2HAsO4 with 500.0 mL of 0.03645 M NaOH. Complete the mass balance expressions below for Na and arsenate species in the final solution. There are 4 arsenate species, but I only got three of them. I am unsure of what the...
March 23, 2013

quantitative chemistry
Consider a solution made by mixing 500.0 mL of 0.04182 M Na2HAsO4 with 500.0 mL of 0.03645 M NaOH. Complete the mass balance expressions below for Na and arsenate species in the final solution. There are 4 arsenate species, but I only got three of them. I am unsure of what the...
March 22, 2013

quantitative chemistry
Determine [Zn2 ], [CN–], and [HCN] in a saturated solution of Zn(CN)2 with a fixed pH of 1.78. The Ksp for Zn(CN)2 is 3.0 × 10–16. The Ka for HCN is 6.2 × 10–10. I know the following is what needs to be done, but im unsure of how to go about it. 1. ...
March 22, 2013

chemistry
Determine the molar solubility (S) of Zn(CN)2 in a solution with a pH = 4.91. Ksp (Zn(CN)2) = 3.0 × 10-16; Ka (HCN) = 6.2 × 10-10.
March 21, 2013

chemistry
Ignoring activities, determine the molar solubility of copper (I) azide (CuN3) in a solution with a pH of 10.83. Ksp (CuN3) = 4.9 × 10–9; Ka (HN3) = 2.2 × 10–5.
March 21, 2013

Art
Describe how elements of art and principles of design work together to form a composition
March 19, 2013

art
Analyse a work of art for example Jacob Lawrence "GOING HOME" to describe how he used both elements of art and principles of design to create a strong composition.
March 19, 2013

Art
Describe how elements of art and principles of design work together to form a composition
March 19, 2013

college algebra
I need help bad. Don't know which formula to use. Please explain step by step. 2x^2-12x+19. Find the interval where f is increasing and decreasing.
March 18, 2013

Math
Find the number of each kind of object in the collection. Sue's Card Collection 8 packs of baseball cards 3 fewer packs of hockey cards than football cards 17 packs in all
March 14, 2013

Physical Science
We divade 32 by 0,1
March 11, 2013

programming (C#)
Write a console-based program that accepts a user's message and determines whether it is short enough for a social networking service that does not accept messages of more than 140 characters.
March 2, 2013

Multivariable Calculus
Find the linearization L(x,y)of the function f(x,y) at P_0. Then find an upper bound for the magnitude |E| of the error in the approximation f(x,y)=L(x,y) over the rectangle R. f(x,y) = (1/2)x^2 + xy + (1/4)y^2 + 3x - 3y + 4 at P_0(2,2),R:|x-2|<=0.1, |y-2|<= 0.1
February 26, 2013

algebra
A video game manufacturer is planning to market a new machine. The fixed costs are $550,000 and the variable costs are $120 per machine. The wholesale price of the machine will be $140. How many game machines must be sold for the company to make a profit? my answer was 27,500 ...
February 24, 2013

Chemistry
Yes, the answer Kc=0.517
February 23, 2013

Chemistry
Consider this equilibrium process at 686°C. CO2(g) + H2(g) CO(g) + H2O(g) The equilibrium concentrations of the reacting species are [CO] = 0.050 M, [H2] = 0.045 M, [CO2] = 0.086 M, and [H2O] = 0.040 M. (a) Calculate Kc for the reaction at 686°C. (b) If the ...
February 23, 2013

Algebra II
Write the equation of the circle in standard form. Find the center, radius, intercepts, and graph the circle. x2+y2+16x−18y+145=25 Standard form
February 19, 2013

trigonometry
the answers are 1,-1, and 0 but i'm not sure how to explain how i got them.
February 18, 2013

trig.
thank you!
February 18, 2013

trig.
8x^3+4x^2-4x solution sets
February 18, 2013

pre-calculus
I need help with soving this problem. G(u) =4-3u-u^2; Find G(-2u)
February 17, 2013

physics
idk
February 14, 2013

Math
A farmer uses 1034 meters of fencing to enclose a rectangular region and also to subdivide the region into three smaller rectangular regions by placing a fence parallel to one of the sides. Find the demensions that produce the greatest enclosed area.
February 10, 2013

Calculus help!
A ball is shot into the air from a bridge, and its height, y, in feet, above the ground t seconds after it is thrown is given by y=f(t) = −16t2 + 55t + 33. What is the average velocity of the ball during the first second? Round your answer to two decimal places.
February 6, 2013

algebra
Need to know the steps to multiply and simplify the expression: (4-z)z=
February 4, 2013

math
find the slope of the given line if it is defind. the line through (2,5) and (0,8) please show work
January 26, 2013

math
a) 1150 dollars invested at 9% annual interest rate (compounded yearly) or b) 1475 invested at 6% annual interest (compounded yearly) after When would the two investments have equal value?
January 25, 2013

math
A culture of bacteria grows exponentially. It doubles in size every 16 hours. How long will it take to triple from its original size?
January 25, 2013

math
An innovative rural public health program is reducing infant mortality in a certain West African country. Pretend the program in Senegal has been reducing infant mortality at a rate 8.1 % per year. How long will it take for infant mortality to be reduced by 30 %?
January 25, 2013

math
assume the substance has a half-life of 11 years and the initial amount is 126 grams.How long will it be until only 15 % remains?
January 25, 2013

Math
assume the substance has a half-life of 11 years and the initial amount is 126 grams. How much remains at the end of 8 years?
January 25, 2013

Algebra
Suppose that the annual interest rate on your checking account is 7.5 percent compounded continuously. In order to have $ 6300 in 7 years, how much should you deposit now? Assume, that the current balance is $ 0.
January 25, 2013

Statistics
The estimated standard error, sM, provides a measure of the average or standard distance between _____. a score and the population mean (X and ì) a sample mean and the population mean (M and ì) a score and the sample mean (X and M) None of the other options is ...
January 23, 2013

math
2,6,10,14, what is the next number at ate a/30 place. a/n=-2+4n a/30=?
January 22, 2013

English
I am reading an article about Britney Spears leaving the X-Factor. On of the lines says "she wasn't a great judge, but she didn't shave her hair off or anything, so she proved herself capable of keeping together." I feel like this might be a logical fallacy, ...
January 21, 2013

math
d=170 feet,t=34seconds r=ft/sec
January 20, 2013

calucus
Draw the graph of y=-2f(x+1)-3
January 17, 2013

Physics
A ball of mass m(1) = 0.250 kg and initial v(1) = 5.00 m/s collides head-on with a ball of mass m(2) = 0.800 kg that is initially at rest. What are the velocities of the balls after the collision if they stick together?
January 11, 2013

calculus
The base of a cell phone tower is an equilateral triangle with sides 10 ft long. How far is one corner of the triangle from the center of the of the triangle?
December 9, 2012

Personal Dimension of Educatio
Compound subjects those joined with and should take singular verbs. For example: the cd player and moon roof is included in the car's price. True or False. My answer is False.
November 16, 2012

Personal Dimension of Educatio
Titles of works and company names should be treated as singlular nouns. For example: the Secret Life of Bees is a novel that was made into a movie last year. True or False. My answer is True
November 16, 2012

Personal Dimension of Educatio
Most singular nouns that end in "s" such as politics, news, measles- take plural verbs. for example: The local news are a good source for community events. True or False.. My answer is False
November 16, 2012

Personal Dimension of Educatio
Select the sentence that has correct subject-verb agreement. 1. Everyone on the guest list are attending the dinner. 2. Everyone on the guest list is attending the dinner. My answer is 2
November 16, 2012

Personal Dimension of Educatio
Select the sentence that has correct subject-verb agreement. 11. Neither my dad nor my siblings want to go to the family reunion this summer. 2. Neither my dad not my siblings wants to go to the family reunion this summer. My answer is 1
November 16, 2012

Personal Dimension of Educatio
Select the sentence that has correct subject-verb agreement. 1. Applied mathematics was my major in college. 2. Applied mathematics were my major in college. My answer is 1
November 16, 2012

Personal Dimension of Education
Select the sentence that has correct subject-verb agreement. 1. If anyone need to buy a new a laptop, give her or him my contact information. 2. If anyone needs to by a new laptop, give her or hm my contact information. My answer is number 1
November 16, 2012

Personal Dimension of Education
Select the sentence that has correct subject-verb agreement. 1. There are several forms that you need to complete when you adopt a pet. 2. There is several forms that you need to complete when you adopt a pet My answer is There are several forms that you need to complete when ...
November 16, 2012

Verb Agreement
Select the sentence that has correct subject-verb agreement. There are several forms that you need to complete when you adopt a pet. There is several forms that you need to complete when you adopt a pet.
November 15, 2012

Personal Dimensions of Education
My answer is True... What do you say Ms. Sue. Thank you
November 14, 2012

Personal Dimensions of Education
The subject and verb should agree even when other words come between them. For example: The students as well as their teacher, are excited about the upcoming trip to Italy. Is it True or False
November 14, 2012

ersonal Dimensions of Education
True or False... As a general rule, collective nouns- such as family, class, faculty, audience- take singular verbs. For example: This year the graduating class is having a beach party after the ceremony.
November 14, 2012

Dimension Personal Education
Correct answer.... She and my brother enjoy debating about politics. Is this the correct answer
November 10, 2012

Dimension Personal Education
Select the sentence that has correct pronoun usage. 1. Her and my brother enjoy debating about politics. 2. She and my brother enjoy debating abaout politics.
November 10, 2012

Dimension Personal Education
Select the sentence that does not have a pronoun-antecedent error. 1. If anybody wants to go to that new restaurant, she or he has to make reservations a month in advance. 2. If anybody wants to go to that new restaurant, they have to make reservations a month in advance. My ...
November 10, 2012

Dimension Personal Education
Select the sentence that has correct pronoun. 1. Natalia is a better cook than me. 2. Natalia is a better cook than I. My answer is 1. Natalia is a better cook than me.
November 10, 2012

Dimension Personal Education
Select the sentence that has correct pronoun usage.... 1. Julie plans to travel this summer with Oscar and me. 2. Julie plans to travel this summer with Oscar and I
November 10, 2012

Dimension Personal Education
The local museum is extending its hours for the summer.
November 10, 2012

Dimension Personal Education
Help.............. Select the sentence that does not have a pronoun-antecedent error. 1. The local museum is extendign its hours for the summer 2. The local museum is extending their hours for the summer.
November 10, 2012

Dimension Personal Education
True or False: The indefinite pronouns both, few, many, and several are always plural in meaning. True..... What do you think
November 9, 2012

Dimension Personal Education
Got it False... Right
November 9, 2012

Dimension Personal Education
I am not sure of my answer. Please let me know if I am correct. I think it is True
November 9, 2012

Dimension Personal Education
True
November 9, 2012

Dimension Personal Education
True or False The indefinie pronouns all,any, more, most, and some are alwas singular in meaning
November 9, 2012

Dimension Personal Education
Select the sentence that does not have a pronoun-antecedent error. 1. Most moviegoers like to bring his own snacks to save money. 2. Most moviegers like to bring their own snacks to save money
November 9, 2012

Dimension Personal Education
Select the sentence that does not have pronoun-antecedent error. 1. Most moviegoers like to bring his owm snacks to save money. 2. Most moviegoers like to bring their own snacks to save money.
November 7, 2012

Personal Dimension
Select the sentence that has correct pronoun usage.... 1. Julie plans to travel this summer with Oscar and me. 2. Julie plans to travel this summer with Osar and I.
November 7, 2012

Persnal Dimension of Education
True or False Subjuect pronouns include me, her, him, and them.
November 7, 2012

chemistry
how many joules are required to heat a frozen can of juice (360 grams) from -5 degrees Celsius to 110 degrees celsius
November 5, 2012

ersonal Dimensions of Education
Help........... Select he sentence that is punctuated correctly. 1.Zora's lemon trees produces too much fruit She gives them away therefore, to her friends and neighbors. 2. Zora's lemon tree produces too much fruit. The gives them aay, therefore to her friends and ...
November 4, 2012

Personal Dimensions of Education
May, I please ask is it False
November 4, 2012

Personal Dimensions of Education
Select the sentence that is punctuated correctly 1 The neighors' new dog is small, quiet, and sky. 2 The neighbors' new dog is small quiet and shy. 3 The neighbors' new dog is, small quiet and shy
November 4, 2012

ersonal Dimensions of Education
There should be commas around "however" in the following sentence: Dwayne had planned to take the last flight out to chicago. It was cancelled, however, because of bad weather (True or False)
November 4, 2012

Personal Dimenion of Education
The coordinating conjunctions that can be used to combine two complete sentences with a comma are 'for,and,nor,because,yet, so True or False
November 4, 2012

Algebra 2
3Y + 6x = 18 4y – 12x = -16 a.) Get each equation in slope-intercept form. b.) Identify the slope and the y-intercept of each equation. c.) Find the x and y-intercepts of each line.
November 2, 2012

College math
Thanx for no steps...
October 27, 2012

College math
If I was here to just have everything answered i'd use y ahooanswer.
October 27, 2012

College math
I have a lot more. I'm only putting one problem from each chapter so I can see the steps again.Can you help me with this then?
October 27, 2012

College math
(2-3i)(3+5i)
October 27, 2012

College math
-15-√-18/33
October 27, 2012

College math
(-2+√-11)^2
October 27, 2012

College math
√-81- √-144
October 27, 2012

College math
3/4+i
October 27, 2012

College math
-8i(2i-7)
October 27, 2012

College math
(-2+6i)+(4-i)
October 27, 2012

HCA
a 700- to 1,050-word paper that includes the following: • Describe the principles of verbal and nonverbal communication. • Explain which three principles you think are critical for effective communication. • Include at least one personal experience with a ...
October 9, 2012

Math
A rectangular wimming pool is 40 ft wide and 45 ft long. It is surrounded on all four sides by a wooden deck of fixed width. The total area enclosed within the perimeter of the deck is 2354 sq ft. What is the width of the deck?
October 3, 2012

math
How long is the strip of wood shwan wants to buy
October 1, 2012

Math/Trig
An airplane leaves an airport and flies due west 150 miles and then 170 miles in the direction 210°50'. Assuming the Earth is flat, how far is the plane from the airport at this time (to the nearest mile)
September 27, 2012

economics
Assume that the equation for demand for bread at a small bakery is Qd = 60 - 10Pb + 3Y, where Qd is the quantity of bread demanded in loaves, Pb is the price of bread in dollars per loaf, and Y is the average income in the town in thousands of dollars. Assume also that the ...
September 18, 2012

AP US history
how?
September 13, 2012

AP US history
By violating the Navigation Acts and developing their own trading patterns, were the American colonies also creating their own mercantile system?
September 13, 2012

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