Wednesday

July 30, 2014

July 30, 2014

Total # Posts: 980

**Math**

Rchel has 14 red, 9 blue, and one yellow towel. In haw many ways can the towels be arranged if the towels of the same colour must be side by side?

**chemistry**

The electron in a hydrogen atom is excited and makes a transition from n=2 to n=7 a. calculate the energy of the photon absorbed in joules. b. calculate the wavelength of the photon in meters HOW DO I DO THIS?

**Chem**

what occurs during the reaction below 4Hcl+MnO2-->MnCl2+2H2O+Cl2 1.the manganese is reduced and its oxidation number changes from +4 to +2. 2.the manganese is oxidized and its oxidation number changes from +4 to +2. 3.the manganese is reduced and its oxidation number change...

**Elements of Statistics**

the world health organization's center of aids research is planning to write a report on aids infection among drug users all of the world. in a recent study conducted on 1,000,000 drug users, 52% indicated that they are using heroin on regular basis, 37% indicated that the...

**Chemistry (organic)**

compound x C29H48BrCl reacts with excess H2/pd to give C29H56BrCl. How many double bonds and how many rings are in X?

**math**

How do the 2000 and 20pyg cancel out...the first pyg is still there?

**math**

(Px – 20) (100 – 2 Px + Pyg) Differentiating with respect to P we get 100 – 4Px + Pyg + 40 = 0 I dont understand how this is calc... whenever I multiply through and take the deriv I get another answer. Do you first multiply Px through then 20??

**chemistry**

CH3C (triple bond) CH 1.BH3, THF ----> 2.H2O2, -OH ---> Na, NH3----> 1.Hg(OAc)2,H2O--->

**8th grade honors english**

How do I properly site sources on my research paper?

**calculus**

Consider the solid obtained by rotating the region bounded by the given curves about the x-axis. y = 9 - 9x^2 , y = 0 Find the volume V of this solid. Sketch the region, the solid, and a typical disk or washer. Any help or tips would be greatly appreciated; not sure how to wor...

**Math**

There are two flavors; vanilla and chocolate.

**Math**

There are 256 students in this outstanding 7th grade class. How many scoops of ice cream would have to be used in each cone in order to make a different cone for each person?

**math**

The rule is to multiply by 1/4. 2 x 1/4 = 1/2 3 x 1/4 = 3/4 5/6 x 1/4 = 5/24 2/3 x 1/4 = 1/6

**math **

n = -4 or 4 (-4)^2-16=0 -4 x -4 = 16, so 16-16 = 0 or 4 x 4 = 16, so 16-16 = 0

**psy**

Learning the skills to achieve your financial long term goals will help you to be a more responsible adult.

**English**

In general, which skills, tasks, and academic areas tend to come more easily to you? Which require more focus and effort and present more of a challenge?

**Physical Science**

A stationary but moveable 450-kg cannon is fired and the 12-kg cannonball moves off to the right with a velocity of 20.0 m/s. What is the connon's velocity (both magnitude and direction) due to the kickback from the firing?

**physical science**

What numbers go where on the formula? I am sorry I just don't get it.

**physical science**

Two 5.0kg rocks are 0.20m apart. What is the magnitude of the gravitational attraction between the rocks?

**Physical Science**

If a 2.0kg object is initially moving with a speed of 10 m/s and a 6.0 N force were applied in the direction of the motion, what would be the acceleration?

**Unix Shell script**

Shell script Using "if" statement checks for a file called "student.txt" in the current directory. Removes (deletes) the file if it exist. This file will collect last name, first name, and grade for 5 people. Use a while loop to get the information (last n...

**Unix Script**

"Using "if" statement checks for a file called "student.txt" in the current directory. Removes (deletes) the file if it exist. This file will collect last name, first name, and grade for 5 people. Use a while loop to get the information (last name, fir...

**comsumer math**

victoria has a total of twenty-four nickles and quarters. she has ten more quarters than nickles.how much money does she have?

**Science**

the water and waste materials we washed down toilets and sinks are called: A. pesticides B. sewage C. industrial chemicals D. fertilizer

**Organic Chem**

Is it possible to obtain pure (200- proof) ethanol using fractional distillation from a fermentation mixture that contains equal amounts of water and ethanol? why or why not?

**Physics**

A loudspeaker of mass 25.0 kg is suspended a distance of 1.00 m below the ceiling by two cables that make equal angles with the ceiling. Each cable has a length of 2.50 m . What is the tension in each of the cables?

**accounting**

debit accounts recievable for 9000 credit sales revenue 9000 debit cash 2500 credit accounts recievable 2500

**Chemistry**

which of the following is insoluble ? (1)calcium chloride (2)ammonium phosphate (3)barium sulfate (4)potassium chromate so its 3 ?

**Chemistry**

Draw the lewis dot structure showing what happens during the reaction Lithium and Chlorine produce Lithium Chloride. how do you draw this, please help .

**chem**

what happens when NaCl(s) is dissolved in water? (1)Cl-ions are attracted to the oxygen atoms of the water (2)Cl-ions are attracted to the hydrogen atoms of the water. (3)Na+ions are attracted to the hydrogen atoms of the water. (4)no attractions are involved; the crystal just...

**algebre**

a flower bed is the shape of a triangle with one side twice the length of the shortest side and the third side is 30 ft more than the shortest side. find the dimentions if the perimeter is 102 ft.

**Chemistry**

what happens when NaCl(s) is dissolved in water? (1)Cl-ions are attracted to the oxygen atoms of the water (2)Cl-ions are attracted to the hydrogen atoms of the water. (3)Na+ions are attracted to the hydrogen atoms of the water. (4)no attractions are involved; the crystal just...

**Immediate accounting**

debit cash 1600 credit prepaid rent 1600 after 1st month of rent is used up u have to expense it debit prepaid rent 400 credit rent expense 400

**chemistry**

how to convert 4.8x10^5 hL to ml?

**Math 156**

If a figure has two right angles, then it is a rectangle? I said that the figure is in not a rectangle if it has two right angles, because a rectangle has four right sides.

**Bus Ops**

Is the set up times relevant to the production time and how does it affect the due dates when using each rule?

**Business**

Which of the following is NOT an example of parallel structure? "Yoga can help you develop flexibility, reduce stress, and increase relaxation." "Learn how to analyze business audiences, improve your style, and edit thoroughly." "You are all encouraged...

**HCS/335**

so how can i strech that into 3 hundred words??

**HCS/335**

Are laws and regulations the problem or the solution in addressing ethical problems? Explain. What would be an alternative?

**fractions**

what is 2/3 of 180/3

**finance**

A work at home oppurtunity is available in which you will receive 3 % of sales for customers you refer.The franchise fee is $ 840.00.How much will your customers have to buy to cover the cost?

**finance**

Richard likes the car price of $10,000 but financing through the dealer is no bargain.He has $2,000 for a down payment,so he needs $8,000 for the loan.Richard borrows $8000 for a period of four years at an add on intrest rate of 11 %.What is the total intrest on the loan?What ...

**finance**

a $200 cash advance by using checks linked to to her credit card account.The bank charges a 2 % cash advance fee on the amount borrowed and offers no grace period on cah advances.Sidney paid the balance in full when the bill arrived.What was the cash advance fee? What was the ...

**finance**

what is the interest and cost on a 6 month loan of $1,500 at13.2% simple annual intrest

**4th grade math**

38 is the answer

**physics**

A body is dropped from a height of 10 meters on Earth and hits the ground with a certain velocity. The body is then taken to the moon, which has a gravitational constant that is 1/6th the value as compared to Earth. It is dropped from the same height, hitting the ground with a...

**organic chemistry**

What volume of physiological saline solution (90% by weight NaCl, in water) would give you a gram of salt when evaporated?

**chemistry**

How to draw a lewis Dot structure for LiCl

**Art Appreciation**

How you feel the form of the sculptures expresses the content. And what is visual elements and principles design

**Human Service**

Generate a list of helpful and unhelpful responses that you personally have experienced in specfic situations- (give examples) give list of unhelpful behaviors and helpful behaviors.

**Science**

I have already tried.

**Science**

Food web of Baltimore Checkerspot butterfly. MUST NEED HELP ASAP.

**Science**

Different species of plants have structure/characteristics that allow them to adapt to their environment. What is this called

**psy 210**

examples of statistical graphs from any Internet source. Copy and paste these into your discussion response, and then explain how it is set up to give an impression that leads the reader to agree with the subject’s conclusion. Then, suggest an alternate presentation of th...

**MATH 12 HELP!!**

a pizza store offers 15 different toppings on its pizzas. what is the probability that 4 randomly selected toppings will include salami and green pepper?

**MATH 12**

two cards are drawn without replacement from a shuffled deck of 52 cards. determine the probability of each event: a) the first card is a heart and the second is the queen of hearts b) the first card is the queen of hearts and the second is a heart

**Physics**

I know how to do displacement, I just get confused by the directions. I walk 6 blocks east and 5 blocks north-I come up with 7.8 because I squared 6 + squared 5 and took the square root of 61 but do I say the final displacement is 7.8 blocks east of north or 7.8 blocks north o...

**Chemistry**

what is the total number of moles in 80.0 grams of C2H5Cl (gram-formula mass=64.5grams/mole)? (1)0.806 (2)1.24 (3)2.48 (4)5.16 please help !

**geometry**

Find the approximate perimeter of triangle abc with vertices a(0,8 b(6,-2 c(-4,4

**Communications**

Techniques for Creating Behavior Change in a Staff Member

**algebra**

D. to solve for x: Since y= 2x you would plug in the 2x where the y is making it 2x=-x +3. Then add an x to both sides to get all the x's on one side of the equation. So it would then look like 3x=3. Divide both sides by 3 to get the x alone and you now have x=1 then to so...

**college**

What are the pros and cons of matching clients and clinicians in terms of gender, ethnicity, disability, sexual orientation, or language? Does matching people along those lines ensure common experience and easy bonding?

**Teachers aide**

Test 02604400

**science**

thanks this also helps one no the probability of his or her chances or risks factors for getting the same disease (s)

**science**

why is it important to know your family medical history

**math**

A rectangular skating rink measuring 30m by 20m is doubled in area by adding a strip at one end of the rink and a strip fo the same width along one side of the rink. Find the width of the strips if the enlarged rink is still rectangular.

**bonar law**

Colonel Harry a. Froboess of Switzerland jumped upward and outward from a windonw of a blimp and landed in a body of water on June 22, 1936. His jump was 120m, about the height of a 40-storey building. The path of his jump can be represented by the quadratic relationship h = 1...

**Chemistry**

Hydrogen bonding is strongest between molecules of (1)H2S (2)H20 (3)H2Se (4)H2Te

**4th grade**

CHIEF OR RULER OF A NARRAGANSETT TERRITORY

**Pen Foster Child Care**

the staff

**Calculus**

Find the critical numbers of the function on the interval 0 ≤ θ < 2π. Small & large value f(θ) = 2cos(θ) + (sin(θ))^2

**wor wic**

is 3.5% more than 54%

**UOP**

The final project for HSM 240 is a 1,750- to 2,100-word proposal paper on a social program that you create. Pretend that you have the power and capacity to create an agency or organization and decide to create a new social program. You need funding and decide to write to a nat...

**Chemisty **

Describe how you would prepare 250 ml of a 0.10M NaCl solution?

**algebra**

what did the baby porcupine say when it backed into a cactus?

**algebra**

what is the perimter of a rectangle. the length is 6 more than the width and the perimeter is 44

**Physics**

I have a question. 2.7104 was that suppose to actually be 2.7*10^4?

**computer science**

what is the cost(most expensive,expensive or less costly)performance(powerful, most powerful or average)reliability(highly reliable or less reliable) size(large, medium or small)and installed in numbers(few, many or large) of super compters, mainframe computers, personal compu...

**spanish 6th grade**

What is your favorite food

**trigonometry**

2 cos^2=1 [0, 2pi)

**math **

in the diagram, lime m is parallel to line p, line t is a transversal, m<a = 3xt12, and m,b =2xt13. find the value of x. thanks !-

**BIOLOGY ( please Help me)**

In both lecture and lab, the significance of water (H2O), molecular oxygen (O2), and carbon dioxide (CO2) has been emphasized with regard to their energy content or participation in metabolic oxidation and reduction reactions. This lab has demonstrated that green leaf tissue ...

**BIOLOGY( please help me)**

Oxidized (blue) DPIP becomes colorless when it is reduced – that is, when it receives electrons. A diagram of the photosynthetic light reaction shows that water molecules are the source of these electrons. How is it that the DPIP was only able to receive reducing electron...

**biology**

In both lecture and lab, the significance of water (H2O), molecular oxygen (O2), and carbon dioxide (CO2) has been emphasized with regard to their energy content or participation in metabolic oxidation and reduction reactions. This lab has demonstrated that green leaf tissue s...

**biology**

In both lecture and lab, the significance of water (H2O), molecular oxygen (O2), and carbon dioxide (CO2) has been emphasized with regard to their energy content or participation in metabolic oxidation and reduction reactions. This lab has demonstrated that green leaf tissue s...

**Biology**

please help me

**Biology**

Oxidized (blue) DPIP becomes colorless when it is reduced – that is, when it receives electrons. A diagram of the photosynthetic light reaction shows that water molecules are the source of these electrons. How is it that the DPIP was only able to receive reducing electron...

**english**

edith for spelling and punctuation? its a good idea to put the matches into a waterproof case before you put them into your pack?

**english**

cub scout is to eagle scout as rookie is to

**math**

8y-(2y-3)=9

**math**

standard deviation is 16.58312. the variance is 275

**statistics**

0.95

**physics**

as a hiker descends a hill, the work done by gravity on the hiker is a.) positive and depends on the path taken b.) negative and depends on the path taken c) positive and indepedent of the path taken d.)negative and independent of the path taken

**math 117**

Living in or near a metropolitan area has some advantages. Entertainment opportunities are almost endless in a major city. Events occur almost every night, from sporting events to the symphony. Tickets to these events are not available long and can often be modeled by quadrati...

**math**

Using parentheses,how can you get 6+6/6*6-6=0? I need help!!!

**childcare**

will you please check homework? 1. In preparing a budget for a day care center, you must plan for taxes. As an employer, you must pay part of each employee’s _______ tax. A. Social Security C. state income B. federal income D. local answer(b) 2. You’re trying to plan...

**Math **

Hint: Pay attention to the units of measure. You may have to convert from feet to miles several times in this assignment. You can use 1 mile = 5,280 feet for your conversions. 1. Many people know that the weight of an object varies on different planets, but did you know that t...

**honors math 7th grade**

its a venn diagram three circles. Here is the question. A study was made of 200 students to determine what tv shows they watch. 22 students hated all star trek shows. 73 students watch only the next generation(TNG) 136 students watch TNG. 14 students watch only deep space 9 (D...

**algebra**

2. The equation gives the distance, D, in miles that a person can see to the horizon from a height, h, in feet. a. Solve this equation for h. b. Long’s Peak in the Rocky Mountain National Park, is 14,255 feet in elevation. How far can you see to the horizon from the top o...

**algebra**

38 = 2a + 54

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