Friday
July 25, 2014

Posts by sandra


Total # Posts: 868

algebra
A parabola has x-intercepts at 3 and 7, a y-intercept at -21, and (5,4) for its vertex. Write the parabola’s equation

algebra
Solve problem. Telephoto lens. find the image distance i for an object that is 2,000,000 mm from a 250-mm telephoto lens. tel formula is 1/f=1/o + 1/i 1/250=1/2,000,000 + 1/i 5i(1/250)=(1/2,000,000 + 1/i)5i 1/50i = 5i/400,000i + 5i/5i 1/10i = 5i/80,000i + 5i/5i I=8,000 Is this...

algebra
Fast food. If four out of five doctors prefer fast food, then at a convention of 445 doctors, how many prefer fast food? 4/5=x/445 5x=1780 x=356 please check if completed right

algebra
Bear population. To estimate the size Use a proportion to solve of the bear population on the Keweenaw Peninsula, conservationists captured, tagged, and released 50 bears. One year later, a random sample of 100 bears included only 2 tagged bears. What is the conservationist...

algebra
5x=1780 (4x445) 1780/5 x=356 checking to see if I completed right.

algebra
Use a proportion Fast food. If four out of five doctors prefer fast food, then at a convention of 445 doctors, how many prefer fast food?

algebra
Find a ratio, and simplify to lowest terms Rise and run. If the rise is 3/2 and the run is 5, then what is the ratio of the rise to the run?

algebra
Show a complete solution. Upstream, downstream. Junior’s boat will go 15 miles per hour in still water. If he can go 12 miles downstream in the same amount of time as it takes to go 9 miles upstream, then what is the speed of the current?

business
What is the interrelationship among the four financial statements? What methods are used to analyze an organization's financial condition?

American History
I just need help with the second question I already did the first one. I understand that some of the criticism are voteing, travel, I need a few more but I don't know what to put.

American History
What does American democracy mean to mean to you as an individual? What are some of the criticism of this style of government?

algebra
Reduce each rational expression to lowest terms. Assume that the variables represent only numbers for which the denominators are nonzero. 4x^2/2x^9

algebra
Simplify each complex fraction. Reduce each answer to lowest terms. ab+b^2/4ab^ 5 _______________ a+b/6a^2b^2

algebra
Reduce each rational expression to lowest terms. Assume that the variables represent only numbers for which the denominators are nonzero. a^2-b^2/a-b

algebra
5 is numerator/ y-3 is denominator y + 7/(2y-6) +1 y +7 is numerator, 2-y is denominator the whole thing +1

algebra
Perform the indicated operation (-2a²)/(3a²) X (20a)/(15a³)

algebra
Here are questions to worker question solve the problem. a) Rewrite the formula by factoring the right-hand side completely. b) Use the factored version of the formula to find N(3). c) Use the accompanying graph to estimate the time at which the workers are most efficient. d)...

algebra
Worker efficiency. In a study of worker efficiency at Wong Laboratories it was found that the number of components assembled per hour by the average worker t hours after starting work could be modeled by the formula N(t)=-3t+23t^2+8t

algebra
Build each rational expression into an equivalent rational expression with the indicated denominator (-7yt)/(3x) =(?)/(18xyt)

algebra
Perform operation (-2a²)/(3a²) X (2a+2)/(15a³) Sorry this is my first time typing out math problems. Thank you for your help.

algebra
perform operatiion -2a²/ * 2a+2/ 3a² 15a³

algebra
Perform operation 3/a^2 x 2a+2/6

algebra
Perform operation 3/ * 2a+2/ a²+a 6

algebra
Reduce to simplest terms,rational expression -2x-8 ______ x^2+2x-8

Algebra
Build each rational expression into an equivalent rational expression with the indicated denominator. -7yt= ? ____ _____ 3x 18xyt

algebra
Which numbers cannot be used in place of the variable in each rational expression? 2y+1 ____ y^2-y-6

algebra
Decreasing cube. Each of the three dimensions of a cube with sides of length s centimeters is decreased by a whole number of centimeters. The new volume in cubic centimeters is given by V(s) = s3 - 13s2 + 54s -72. a) Find V(10). b) If the new width is s - 6 centimeters, then w...

math
Yeah I already figured it out thank you. I was wondering how you did it solved the problem I was getting fusterated b/c I tried it so many ways and I just wouldn't come up with an answer, I was way off the mult. choice. Once again thanks.

math
So what you did was mult. 230,000 by 1.06 right which I got 368000. But from there what do I do did you mult. 368000 by 21? I'm lost in that step right there.

math
Well you see that is what I did and but still don't come up with the answer these are my answer options. A)$427,867.75 B)$737,641.16 C)$828,813.61 D)$781,899.63 I even did this since there are 12mths in a year I mult. 12 by 21 which I got 252. So what is the answer though????

math
I can not solve this problem it's kind of hard for me can anyone please help me out. Thanks 1.If inflation is 6% a year compounded annually, what will it cost in 21 years to buy a house currently valued at $230,000? Round to the nearest cent.

comprehensive Gramer
My new coworker, a Muslim,is actually quite nice

college
DEFINE WHAT IS MEANT BY THE TERM''HUMANITIES''AND EXPLAIN WHAT DISTINGUISHED THE HUMANITIES FROM OTHER MODES OF HUMAN INQUIRY AND EXPRESSION. THEN LIST A CURRENT EX. OF EACH OF THE EXPRESSIONS OF THE HUMANITIES LISTED BELOW AND TELL WHY EACH EX. YOU GIVE REFLEC...

math
sandra bought 2 1/4pounds of lumbaar at 4.00 a lb. if a 7 percent tax was added, how much did she pay i know answer is $9.63 how did they get the answer

5th grade Math
i know right. this is hard and im in the 9th grade

Clark Atlanta
Write a 200- to 300-word explanation of the reasons the following types of companies would need a financial forecast: brand new company, family owned company, and a long-standing corporation.

chem
why is the answer 9 can you please explain

chem
What is the total number of orbitals possible for n = 3

chemistry
What is the wavelength of a ball that is 25.0 g traveling at 90.0 miles per hour (40.2 m/s)? I tried solving it by using c = wavelenth* frequeny but i get the wron answer

Calculus
it'sh(t)= Acos2 pi ft

Calculus
How do I find the frequency of this oscilliating spring. A= 10cm displacement t= 1s h(t)= Acos2ðft

Chemistry
I forgot to mention that forward arrow is suppose to be an equilibrium arrow forward/reverse

Chemistry
Calculate [Fe^2]+ when the cell reaction reaches equilibrium? A voltaic cell is constructed based on the following reaction and initial concentrations: Fe^2+,( 0.0055 M ) + Ag+,( 2.5 M ) ----> Fe^3+,( 0.0055 M ) + Ag(s) Calculate [Fe^2]+ when the cell reaction reaches equil...

Psychology
"How are a cat and a dog alike? An answer to this question requires:

CHEM HELP
Nicotinic acid (niacin) is a monoprotic acid with the formula HC6H4NO2. A solution that is 0.012M in nicotinic acid has a pH of 3.39 at 25*C. What is the acid-ionization constant, Ka and pKa for this acid at 25*C? is the ionization equation: HC6H4NO2+ H20(l) <>C6H4NO^-(a...

Calculas
how to find the x intercepts for f(x) = 3x^3+7x^2+3x+1 please show your steps

calculas
how to find the x intercepts for f(x) = 3x^3+7x^2+3x+1 please show your steps

calculas
how to find the x intercepts for f(x) = 3x^3+7x^2+3x+1

math
how to factor 3x^3+7x^2+3x+1

math 116
-x/9=1/16 This is suppose to be solved using the multiplication principle. If possible please show me not just the answer but how you came up with it so I understand how to do these problems. Thank you

Calculus
How do you find the critical numbers and the end points of this function: f(x)=2x^3-3x^2-12x+5 i calculated the critical numbers as x=-1 and x=2 is this right?!?!

statistics
A manufacturer of golf equipment wishes to estimate the number of left-handed golfers. How large a sample is needed in order to be 98% confident that the sample proportion will not differ from the true proportion by more than 5%? A previous study indicates that the proportion ...

2nd grade
Thank You!

2nd grade
How are a retangle and a pyramid the same? How are they different

Financial Management
A small company was founded by 2 electronic engineers, Tom and Jessica, 15 years ago. The company manufactures integrated circuits to capitalize on complex mixed-signal design technology and has recently entered the market for frequency timing generators, or silicon timing dev...

Financial Management
A small company was founded by 2 electronic engineers, Tom and Jessica, 15 years ago. The company manufactures integrated circuits to capitalize on complex mixed-signal design technology and has recently entered the market for frequency timing generators, or silicon timing dev...

7th grade science
wat? huh? waa?

Chemistry!!!
Use Le' Chatelier's Principle. a solution at equilibrium: BaCrO4(s)<> Ba^2+(aq)+ Cr)4^-(aq)recall: 2CrO4^2-(aq)+ 2H^+(aq)<> Cr2O7^2-(aq) +H20 2CrO4^2- yellow Cr2O7^2- orange Make predictions about colour changes or changes in the number of states a) To a so...

College Algebra
A rectangular swimming pool is 8 meters long and 12 meters wide. A tile boarder of uniform width is to be built around the pool usinjg 120 square meters of tile. How wide should the boarder be? Round anser to the nearest hundredth.

CRIMINAL LAW - N word
what are 3 arguments you can use for and against criminalizing the use fo the N word?

CRIMINAL LAW - MARIJUANA
what are 3 arguments you can use for and against the legalization of Marijuana?

CRIMINAL LAW - SPANKING KIDS
what are 3 arguments you can use for and against the criminalization of parents hitting/spanking their children for any reason?

CRIMINAL LAW- MUSIC
what are 3 arguments you can use for and against the criminalization of music that glamorizes drugs, crime andthe degradation of women?

criminal law - talking on cell phone
what are 3 arguments you can use for and against the law restricting people from talking on the cell phone while driving... even with a headset?

criminal law- calorie content
what are 3 arguments you can use for and against the law requiring restaurants to display the calorie content in food?

criminal law
Thank you Ms. Sue

criminal law
what are 3 arguments you can use for and against the criminalization of sex with someone under 17 that looks, acts, talks and even says that they are older?

Physics
A string passes over a frictionless, massless pulley attached to the ceiling. A mass m1=15.0 kg hangs from one end of this string, and a second massless, frictionless pulley hangs from the other end of the string. A second string passes over the second pulley and a mass m2=4.0...

math
i do not understand what is 2,340 divisible by 90

Math
I need help with this partial fraction problem. Find the indefinite integral of (-5x^3+5x^2-5)/(x^4+X^3). I got -5(log(x+1)+(1/x)-(1/(2x^2)).

american revolution
the american revolution was an attempt by the patriots to

algebra with pizzzaz worksheet
they fasten eight

QRB 501-Accounting
Gateway, Inc., did not declare or pay any dividends during fiscal 1999 or fiscal 1998. What do you suppose is the primary reason for this?

QRB 501
What other data (trend or otherwise) would you like to have access to prior to making an investment in Gateway, Inc.?

axiacollegue
in what ways do audience, purpose, tone, and structure affect the formatting of the memo and the papers

math
I need help on how to do this problem y(y _ 5).(wy)using the commutative and associate properties of multiplcation. I need someone to show me please thank you

college
can someone please help me solve the following problems Solve the following: 1. 2/7 - 1/3 = ? 2. 4/5 x 15/2 = ? 3. 2 1/2 ÷ 3/4 = ?

math
please help me with this question What is your fear of math or if no fear, what do you like about it?

4th grade
what is my number I am a three digit number I am less than 200 i am divisible by 12 and by 9 my units digit is less than my tens digit

math
I need help with this question Identify the properties of real numbers.

human resource
SMC Company manufactures ergonomic office equipment. SMC is located in a small Midwestern town of 30,000 people with a current unemployment rate of 2.2%. The owner is committed to keeping the organization local. Several local companies have experienced recent labor organizing ...

human resources
SMC Company manufactures ergonomic office equipment. SMC is located in a small Midwestern town of 30,000 people with a current unemployment rate of 2.2%. The owner is committed to keeping the organization local. Several local companies have experienced recent labor organizing ...

chemistry
why are BeF2, AlCl3 and BeCl2 covalent compounds and not ionic compounds?

human resources
Why do people resist performance appraisals?

human resources
Describe the performance appraisal method used in your organization. Detail if you feel this method is effective in improving employee performance, recognizing employee accomplishments, and obtaining organizational objectives.

human resource
My goal is to head my own company and advance to the top I work in the education field but want to move up to a mamangement position I will give myself 5 years to do this.

human resource
I neede help in writing a five-year career development plan

human resources
I need to know what is Performance Management Process and the Purpose of Employee Performance Appraisals how do I start to write this paper I need help in writing the introduction

human resource
I need to know what is Performance Management Process and the Purpose of Employee Performance Appraisals how do I start to write this paper I need help in writing the introduction

human resource
I am writing a paper on this subject and I need help can someone please help . Introduction – Performance Management Process II. Purpose of Employee Performance Appraisals a. Evaluating employee’s skill levels b. Feedback Opportunities i. Employee performance ii. Com...

human resources
In what situations are the following compensation methods most effective: a) Merit pay? b) Incentives? c) Lump sum?

BIOLOGY
it is hydrophilic isn't it???? i'm sure it is?

Human Resource
describe the changing role of Human Resource (HR) management in response to trends in globalization, technology, diversity, e-business, and ethics.

Math
Laura has 20 feet of fencing to make a rectangular pen for her dog. What is the largest area that she can fence in?

math
how to compare relative frequency and theoretical probability

Mathematics
R^2 + R^2 = R^3 Solve for R

math
A varies BC, when b=4,and c=9,a=6 a.find the formulea connecting A,B and C. b.find A whenn B=3 and C=10 c.find C, if A=20 and B=15

business communications 1
the design of a document reflects on the writer in terms of all the following. a social status b professionalism c competence d credibility my answer is d

business communication 1
my choice is a

business communication 1
the appearance of a document can do all of the following except. a establish rapport with the audience. b guide your reader attention. c substitute for the written text in the document. d build goodwill.

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