# Posts by Joe

Total # Posts: 2,609

**Bio**

The answer is B?

**Bio**

The ultimate source of the energy in food ___________________ A)is ATP B)is the sun C)is producers D)is plants E)is consumers

**math**

assignment for an art class is to complete 4 projects from a list of 6. how many ways can this be done if the order soes not matter?

**statistics**

There are 120 possible samples of size n=3 which can be drawn from this population of 10 scores: 3, 4, 5, 6, 7, 8, 9, 10, 11, 12 Write each sample and calculate its mean

**english**

what is the sypmbol of freedom? is it the white dove? just want to know for my poster im doing

**history**

What were the international consequences of the stock market crash in 1929? How did world leaders respond to the global depression? with what results?

**History**

Thank you sooo much!!

**History**

What social factors contributed to American Imperialism? I have searched and searched and not found anything. If anyone can help me, even with a website I would be grateful. Thanks so much.

**language**

Instructions Using specific references from "In Memoriam" Lyric 56 and from "Tintern Abbey," contrast Tennyson's view of the relationship between man and nature with that of Wordsworth's, demonstrating a comprehensive understanding of the ...

**language**

Poetic diction is used to refer to the linguistic style, the vocabulary, and the metaphors used in the writing of poetry Right? So it wouldnt be that one etheir, So my choices are now between 3 atmosphere 5 none of these But how do i know if it is none of these?

**Chemistry**

If radon-222 has a half-life of 3.8 days, determine how long it takes for only 1/8 of a sample to remain.

**Eth 125**

iat

**Spanish 3**

I am using "por" correctly in this sentence?: Podré reunirme contigo la semana que viene porque por ese momento tendré más tiempo.

**Macroeconomics**

Suppose the economy has been experiencing zero inflation and five percent unemployment for several years. The government decides to lower the unemployment percentage by generating some inflation. You need to do the following: 1)create a graph showing what the short-run effects...

**Geometry**

Area reqd. = 4.3*4.3 - ¡Çr^2 where r = 2.15 m Area = 3.96214 sq m

**Algebra**

y = mx + c is a line with slope=m and a y-intercept of c. And hence the reqd. line: y= -2x/3 + 2 or 2x+3y=6 Ajit

**accounting info. systems**

The last step in the revenue cycle is cash collections. The accounts receivable department must know when customers pay their invoices, yet segregation of duty controls dictate that the collection and recording functions be kept separate from each other. What is a solution to ...

**CALCULUS**

This is actually a question from co-ordinate geometry. If (x1,y1), (x2,y2) and (x3,y3) are the vertices of a triangle then its area = (1/2))(x1(y2-y3)+x2(y3-y1)+x3(y1-y2)) The co-ordinates of the vertices aren't very clear in your Q but assuming that the three points are...

**math**

Vol. of cylinder = ¡Ç(r^2)h and vol. of hemi-sphere=(¡Çh^3)/12 and hence their ratio = 12(r/h)^2 where r, h are the radius & and the height of the cylinder

**Math**

For a can with both ends closed, Area reqd. = 2¡Çrh + 2¡Çr^2 where r=6,h=4 and assume ¡Ç=22/7, A=2640/7 sq in. If one end of the can is open then A=2¡Çrh + ¡Çr^2 = 264 sq in.

**math**

What is the greatest amount of postage you can not pay using only 7 and 11 cent stamps?

**physical science**

calculate the KE of a 1500 kg. car travelling at 60 km/h

**physical science**

What will the stopping distance be for a 1,000-kg car if -2,000 N of force are applied when the car is traveling 10 m/s?

**chemistry**

A metal pipeline is laid to carry oil 500 miles across desert.Temp @ night is 30 F: during day temp is 130 F? The linear coefficient of thermal expansion of metal is 0.000006, how much expansion and contraction along pipeline must the design engineer plan for.. a. 475 ft b. ...

**chemistry**

A). the process will still be first order, but the rate constant will decrease.

**math**

Nikki cam word process 7 words in 6 seconds. At this rate, how many words can she process in 3 minutes?

**math**

In how many ways can a cashier give change of exactly 60 cents if he has the following coins available? 10 quarters; 10 dimes; 10 nickels

**IT 210**

Generate an object-oriented design for a system that keeps tracks of your CD and DVD collection. · Identify each of the classes, associated data, and operations for the classes. · Generate the pseudocode for each of the classes as demonstrated on p. 251. ·...

**Economics**

A New Hampshire resort offers year-round activities: in winter, skiing and other cold-weather activities; and in summer, golf, tennis, and hiking. The resorts operating costs are essentially the same in winter and summer. Management charges higher nightly rates in the winter, ...

**Economics**

The U.S. cigarette industry has negotiated with Congress and government agencies to settle liability claims against it. Under the proposed settlement, cigarette companies will make fixed annual payments to the government based on their historic market shares. Supposed a ...

**chemistry**

Assume the solution's final volume is 200.0 mL, the density is 1.00 g/mL, and the heat capacity is 4.184 J/gC. Note: Pay attention to significant figures. Do not round until the final answer.) The molar heat of reaction,delta H rxn , for the reaction of Ca(s) + 2H+(aq)->...

**Chemistry**

What catalysts are used to manufacture sulfuric acid and nitric acid?

**Grade 8 Geometry**

In a triangular prism V=(1/3)x(Base Area)x(Height) To find Base Area in the case of triangular prism we use the formula for area of a triangle that is A=(1/2)x(L+W)

**taxes**

Glenda will have $97,000 tax preference in 2008 as a result of the passive activity

**math**

Suppose that an experiment has five separate mutually exclusive outcomes: A, B, C, D, and E. If the sample space for the experiment is a uniform sample space, what is p(a or e)

**life science**

An organism's ability to maintain steady internal conditions despite changes in its external environment is called biogenesis homeostasis osmosis respiration In an organism, a virus enters, and reproduces within, a(n) host cell infection interferon parasite The theory that...

**Math**

Can someone please condense this expression. I do not know how. 1/2ln(x^2+1)-4ln1/2-1/2[ln(x-4)+lnx]

**English**

What are some good key quotes (about 6-8) for Reverend Hale in The Crucible?

**math**

what is the scientific notation of 1,200,000

**Science**

That is the dental formula of a cow.

**math**

what is a fraction between 1/3 and 2/3?

**chemistry**

Hi <3

**probability Please check answer**

If John has 22 marbles and 25 are reds, 16 are blue and the remaining marbles are yellow, what percentages of John’s marbles are yellow?

**chem**

14?

**algebra**

cmon u don't need help for this one ! but anyway here is a hint : REPLACE enough said :)

**Maths**

if i understood the question correctly, here is how u do this : percentage = (113/1600)*100 = 7.0625 % 2 decimale places : there is a 2 after the 6, 2<5 thus u don't increment the 6 and the answer is 7.06 %

**algebra**

true i am sorry for that ! thanks Reiny for correcting :)

**algebra**

(x-5)(x+19) = x^2 + 14x - 95 second degree equation (y = a*x^2 + b*x +c), must use Delta = b^2 - 4*a*c to solve it *** Solution *** Delta = (14)^2 - 4*(1)*(-95) = 596 > 0 two solutions: x1 = (-b-sqrt(Delta))/(2*a) x2 = (-b+sqrt(Delta))/(2*a) Numeric Application : x1 = -19 ...

**Calculus**

to calculate the max of any function (absolute or relative) u must derivate it and find the value of x that cancels that derivative. for your case, here is the solution : *** Solution *** let's derive f(x): f'(x) = 5 - 5*e^(5x) condition that we impose : f'(x) = 0 ...

**8th grade math**

Hello the 2 variables that u have to conider are the total sales that we will call x in our case, and Kenisha's income that we will call y A) if we translate the first sentence to an equation, we understand that she earns a fixed amount + a percentage on the total sales, ...

**Math**

Right

**math**

A plane that flies 170 miles per hour is flying 510 miles. How long will the trip take?

**Physics**

objects have various reflexion indexes, for a mirror it's close to 1, so this is why it reflects almost everything the law applies for everything, but the reflected ray may be very very weak

**Science chemistry**

.0118 moles benzoin .288 moles HNO3 How do I do the ratio?

**Science chemistry**

Assume 2.5 grams of benzion and 12.0 mL of 15.8 M nitric acid (density = 1.51 g/mL) was used in the experiment . What is the mole to mole ratio of benzion and nitrate ion.

**Physics**

An RC-circuit has a time constant of 6x10-3 seconds. The capacitor stores a maximum energy of 8 J, when charged using a 3-Volt battery. Using the same battery, we want to increase tenfold the amount of stored energy, while keeping the same time constant (to ensure that the ...

**Physical Science**

What are the various properties of a substance that determine its heat capacity?

**Physical Science**

What are the various sources of heat?

**Math**

The mean of a sample of 25 was calculated as xbar = 500. The sample was randomly drawn from a population whose standard deviation is 15. Estimate the population mean with 99% confidence. B.) Repeat part (a) changing the population standard deviation to 30. C.) Repeat part (a) ...

**college-physics**

In a particular region of space, the magnetic and electric fields have energy densities of 0.2 J/m3 and 4 J/m3 , respectively. Calculate the strength of the magnetic and electric fields in this region.

**science**

after spraying crops with ddt for several years, farmers found that populations of insect pests rebounded. one reason was that insects had developed resistance to the insecticide. suggest another reason, based on what you know about populations, pyramids, predators and ...

**math**

Jen and Heather went to lunch. jen had $8.00 for the bill. Gayle had 3/5 of the bill. how much did Gayle pay.

**algebra 1**

Given the data points (2, 9), (-4, 8), and (7, 3), the relationship shows a direct variation.

**math**

the ratio of girls to boys in the fifth form is 5;4 there are 144 pupils in the fifth form. how many are girls and how many are boys?

**math**

what is the unit rate of 2 for $4.98

**8th grade**

I guess you couldn't solve it. Here's how to solve it x^2(3x-8y) =25(-15-32) =-1175

**maths**

I don't now trying to cheat on homework

**chemistry**

What volume of .200M NaOH will be required to react completely with 32 mL of .15M HNO3

**Algebra**

THe function h(t)=-16t^2+v0t+h0 describes the height in feet above the ground h(t) of an object thrown vertically from a height of h0 feet, with an initial velocity of v0 feet per second, if there is no air friction and t is the time in seconds sine the object was thrown. A ...

**Algebra**

THe function h(t)=-16t^2+v0t+h0 describes the height in feet above the ground h(t) of an object thrown vertically from a height of h0 feet, with an initial velocity of v0 feet per second, if there is no air friction and t is the time in seconds sine the object was thrown. A ...

**Economics**

In a one-shot game, if your rival advertises and you advertise, he will earn $7 million and you will earn $2 million in profits. If neither of you advertise, you will make $4 million and he will make $2 million. If you advertise and your rival does not, you will make $3 ...

**math**

Marissa plans to cut a wire that is 5 feet 3 inches long. How long should each of the cut pieces be if she wants 7 equal pieces of wire? Find the twenty-second term of an arithmetic sequence if the first term is 4 and the common difference is 10. Find the twenty-second term of...

**math**

what is the unit rate of 2 for $4.98

**college algebra**

x^2+34x+c

**History**

How did human history in North America during the period described in the Prologue differ from the events of Asia, Eurasia, and Europe?

**math**

How do you do this question? A shipment of 25 television sets contains three defective units. In how many ways can a vending company purchase four of these units and receive (a) all good units, (b) two good units, and (c) at least two good units.

**math**

When a soccer ball is kicked with a vertical speed of 25 m/s its height, h metres, after t seconds is given by the equation h=-5t^2+25t a) how long after it is kicked is the soccer ball at a height of 30 m ? b) How long is the soccer ball in the air?

**Business**

Consider the wide spectrum of business organizations, ranging from gigantic corporations to working at home. Describe at least three types of business organizations that you are familiar with or that you would like to know more about. How is each one advantageous to the ...

**Investments**

You are to analyze and compare one company from the holdings to another company that the Fund does not currently own within the same sector. (USB, PNC). Your analysis will include both fundamental and technical analysis. For the fundamental analysis, you are to calculate the ...

**chemistry**

How would one calculate the equilibrium pressure of Sodium bicarbonate and citric acid in water (think Alka Seltzer), reacting in a closed volume. The pressure builds up to a point, where the reaction slows due to pressure build up. How do I calculate the equilibrium pressure ...

**Pre Calculus**

Verify the following identity 2 tan x/1+tan^2 x = sin 2x

**Anatomy and Physiology**

What structure still works to pump out sodium and potassium in while resting to maintain the concentration gradient? a. cell body b. axons c. dendrites d. synapse All of the following are characteristic of the passive potassium channel except _____. a. found on cell body, ...

**Anatatomy and Physiology**

The ability of a specific tissue or organ to respond to the presence of a hormone is dependent on:

**chemistry**

Thanks!

**chemistry**

how do you how do you find the mass of a solution, given the density is 1.022 g/mL.

**e**

Invigorate means gives you renewed energy, so I guess D would be correct. Kind of a funny question the way it's written.

**math**

make a possibility tree: turkey roast beef ham cheese Multiply the number of sandich types (4) times the number of drink types (3) times the number of desserts (2) and you get 24 possible combos. It's that simple (go figure!)

**Math**

Probability: There are 10 yellow cards, 6 green, 9 orange, and 5 red cards in a stack of cards turned face down. Once a card is drawn, it is not replaced. What is the probability that you will select 2 yellow cards?

**4th grade**

Funny problem. Is it worded correctly? Each side of the dog house would be 7 feet. Is that what you're looking for?

**spanish**

Yo tengo las clases de matematicas, ingles y sciencia.

**Hypothesis testing**

Can we prevent flooding in our communities

**8th grade algebra**

what is the square root of 9x (to the power of 8) Explain too?

**Math**

computing grades. the fith test counts as double ( and i got the answer 74, so how much would it be as double?. thanks!

**spelling**

spell whirlwind correctly

**math**

Jen,amy,linda,max and jenny are compteting to fill two remaining spots on the chess team. How mant different combinations are possible for filling the two spots? 120,60,20,or 10

**math**

Tom received 90 votes in the student council election. That was 30% of the total votes cast. How many votes were in the election? 200 270 300 360

**Calculus**

given y=sec(x^2)ln(2x^5) find dy/dx

**Calculus**

find f'(x) f(x)=(3x^2-4)^5 / √2x-1

**Calculus**

find f'(x) f(x)=cos(2x)tan(2x)/2√x