Wednesday

July 30, 2014

July 30, 2014

Total # Posts: 3,850

**English (SCARLET LETTER)**

Yes, I checked here as well. But I just can't seem to get understand the second scaffold scene. I am debating between answer A and C.

**English (SCARLET LETTER)**

We are reading the story, THE SCARLET LETTER, in class and I am confused on this question. From my understanding, Dimmesdale gets on scaffold and imagine what would be to tell the truth about his sin but then all of the sudden Hester and Pearl walks by. But I don't think D...

**college chemistry**

If 100.0 mL of 0.0025 M Na2SO4 (aq)is saturated with CaSO4 how many grams of CaSO4 would be present in the solution? [Hint: Does the usual simplifying assumption hold?]

**Math help,plz :(**

Bob is making a scale drawing of his garage which is 10 yards long.If 1/2 inch represents yard, how many inches long should the drawing be?

**College Algebra**

The equation for the total revenue earned by a company for selling widgets is p=3q. The equation for the total cost of the company for producing widgets is p=q+4. Identify the break-even quantity.

**College Algebra**

Pencils cost 20 cents and pens cost 50 cents. Mabel buys x pencils and y pens, spending $2.00. what is the slope and what does it represent? what is the y-intercept and what does it represent?

**College Algebra**

Pencils cost 20 cents and pens cost 50 cents. Mabel buys x pencils and y pens, spending $2.00. Write an equation in slope-intercept form that expresses y in terms of x. slope= -2/5 what does it represent? y-intercept= 4 what does it represent?

**Science**

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**Science**

You are creating a carbon cycle poster. In which direction would you draw arrows to show the movement of carbon through the process of respiration?

**College Algebra**

50 gallon barrel plumb full of water springs a leak in the bottom and leaks at a constant rate of two gallons per minute. y=50-2x slope=-2 what does it represent? y-intercept=50 what does it represent? x-intercept=25 what does it represent?

**College Algebra**

The letters in the word probability are written on separate slips of paper. Find the probability of drawing two i's in a row without replacement.

**College Algebra**

The letters in the word probability are written on separate slips of paper. One slip of paper is drawn at random. Find P(b)

**College Algebra**

Find AC A= 2 3 0 4 1 6 C= 2 3 0 1 1 0

**College Algebra **

If CI=C, find I C= 2 3 0 1 1 0

**College Algebra**

Line m passes through (2,5) and (-3,-2). Find the slope of a line that is perpendicular to line m.

**College Algebra**

They didn't line up correctly. I reposted the correct way.

**College Algebra**

Find AC A= 2 3 0 C= 2 3 4 1 6 0 1 1 0

**Math- urgent**

Solve for x. 8x-(8+6x)=20 Please show your work.

**Math- urgent**

Solve for x. x+4 (x+3) =17 Please show your work.

**math **

an ice cube that is 8 cm on each side is melting at a rate of 4 cm^3 per min. how fast is the length of the side decreasing?

**math**

find the standard deviation for the following: 8,5, 12, 8, 9, 15, 21, 16, 3. There is a formula but our teacher wants us to do it a specific way. For example, 47, 41, 32, 53, 57. First you find the mean, which is 46 and then subtract it with each number in the set so you get 1...

**math**

how do you do it the way i showed above? because our teacher doesn't want us to use the formula

**math**

find the standard deviation for the following: 8,5, 12, 8, 9, 15, 21, 16, 3. There is a formula but our teacher wants us to do it a specific way. For example, 47, 41, 32, 53, 57. First you find the mean, which is 46 and then subtract it with each number in the set so you get 1...

**Young ScholarsAcademy**

Quention and suani went to ray house of food dinner . their bill was $64 to which they added a 15%tip. how much did they pay in total

**College Algebra**

A= [2 3 0] [4 1 6] 1. what is the additive inverse of A? 2. find 3A.

**College Algebra**

Line m passes through (2,5) and (-3,-2) Find the slope of a line that is perpendicular to line m.

**College Algebra**

Find the probability of drawing two i's in a row without replacement.

**chemistry**

convert 3.0m to yd

**Physical Science**

Magnetite

**Instructions**

The teacher gave us a mini essay that has 16 questions under each chapter (Chapters 1-4, 4 questions per chapter). Her instructions are as follows: "Below you will find short-essay-type questions from each of the Unit 2 chapters. Please select and respond to any ONE quest...

**math(help)**

In order to do fractions, you need to find the common denominator [bottom number]. IF they don't match then you have to multiply both of the numbers to have the same number. For example questions 3 and 4 both have a common denominator, thus its easy to calculate. 3) (7/15...

**physics**

v = 50 m/s h = 100 m = x x = 1/2 at^2 t = (square root) x/(1/2) t = 4.51 s Vi = 50 m/s so you have to find the final speed if you want to find the angle of projection, vi = 0 m/s i think cannot be zero vf^2 = vi^2 + 2ad I'm sorry you're going to have to look up this. O...

**maths**

Are you trying to solve for y?

**Math**

To calculate the mean we add up all of the numbers and divide by the total number amount for e.g. you have 5 numbers here. Add them up and divide by 5 b) The standard deviation is that complicating equation. You can check this on google to get the exact formula and i think if ...

**poiseuille's law**

GIVEN: L = 3.0 cm = 0.03 m r = 0.3 mm = 0.0003 m (delta) y = 1.0 m 1 pint = 500 cm^3 [approx.] given a) Find the rate of flow, F = ? b) How long will it taken to inject 1 point of blood, t = ? a & b) I know we need to find the pressure or speed. F = (P at) (A) = (P at ) (pie)...

**Math**

5 times 0.15 show on a grid paper.

**College Algebra**

Identify a different point on the line (with whole number coordinates) and tell what it represents.

**College Algebra**

The equation for the total revenue earned by a company for selling widgets is p=4q. The equation for the total cost of the company for producing widgets if p=q+6. Find the break-even quantity.

**College Algebra**

The equation for the total revenue earned by a company for selling widgets is p=4q. The equation for the total cost of the company for producing widgets if p=q+6. Graph p=4q

**College Algebra**

Mints cost 5 cents each and gumballs cost 3 cents each. Kathleen spent 60 cents buying x mints and y gumballs. Slope intercept form: y=-5/3+20 What is the slope and what does it represent in this problem?

**College Algebra**

Mints cost 5 cents each and gumballs cost 3 cents each. Kathleen spent 60 cents buying x mints and y gumballs. Slope intercept form: y=-5/3+20 What is the y-intercept and what does it represent in this problem?

**Organic Chemistry Help Please**

We're going over the reactions involving Alkenes and Alkynes. However, I'm extremely confused I how to determine with solvent/solvents to use and also when already given the solvents with the reactants how this will effect the products. I studied the basic mechanisms f...

**Math- urgent**

Thank you.

**Math- urgent**

-3 (x-8)+7x=12 What does x equal? Please show your work.

**Math- urgent**

X+4÷7=-2 What does x equal? Please show your work.

**Calculus**

Suppose that a population develops according to the logistic equation dP/dt = 0.06P−0.0001P^2 where t is measured in weeks. 1) The carrying capacity is . 2) The growth rate k is . Use your calculator to sketch a direction field for this equation. Sketch the solutions fo...

**Math- urgent**

Thank you.

**Math- urgent**

X-30=14-3x What does x equal? Please show your work.

**Math- urgent**

1/2 (8-6h)=h what does h equal? Please show your work.

**Math- urgent**

-4x-2+3x=4 What does x equal? Please show all work.

**AP Stats**

Viruses are infectious agents that often cause diseases in plants. Different viruses have different potency levels, and this fact can be used to detect whether a new virus is infecting plants in the field. In a potency comparison experiment, two viruses were placed on a tobacc...

**math**

Why is the point 3,0 not considered to be in any of the quadrants?

**Calculus!!!**

Find f. (Use C for the constant of the first antiderivative and D for the constant of the second antiderivative.) f ''(x) = 8 + x3 + x5

**math**

The temperature on one day in January for Phoenix, AZ, is 52 degrees Fahrenheit. On the same day in Barrow, AK, the temperature is -23 degrees Fahrenheit. What is the difference between these two temperatures?

**Math**

How many ways can you arrange the order of 4articles on a shelf?please explain why it is 4 x3x2x1,thanks

**Physics problem**

An object with a mass of 100kg is dropped from an 80 meter high building and leaves an impression in the ground of 15cm. A.What is the time needed to hit the ground? B. What is the speed of the object when it hits the ground? C. What is the coefficient of the friction between ...

**Physics problem **

An object with a mass of 100kg is dropped from an 80 meter high building and leaves an impression in the ground of 15cm. A.What is the time needed to hit the ground? B. What is the speed of the object when it hits the ground? C. What is the coefficient of the friction between ...

**Math- urgent**

One more than 3 times a number is the same as 5 times the number, decreased by 15. Find the number. • Assign the variable • Write an equation • Solve equation

**stats**

The population (in millions) and the violent crime rate (per 1000) were recorded for 10 metropolitan areas. The data are shown in the following table. Do these data provide evidence to reject the null hypothesis that ƒÏ = 0 in favor of ƒÏ ‚ 0 at ...

**history **

I'm having a debate about gay marriage. & I'm arguing that people should have the right to marry who they please because church & state are separate & the constitution grants people rights, including marriage rights. If my opponent says then if everyone has rights, why...

**University of Belize**

5. A 0.500 g sample of a BaCl2•2H2O/Na2SO4 salt mixture, when mixed with water, filtered, and dried, produced 0.225 g of BaSO4. The Na2SO4 was determined to be the limiting reactant. a. Calculate the mass, in grams, of Na2SO4 in the mixture. b. Calculate the mass, in gra...

**Physics**

On a cloudless day, the sunlight that reaches the surface of the earth has an intensity of about 1.2 103 W/m2. What is the electromagnetic energy contained in 6.4 m3 of space just above the earth's surface?

**US History**

How did immigration change after 1890?

**General Physics 2**

Type A dead battery is charged by connecting - PHYSICS HELP? in google search and you'll find a question similar to this on July 17, 2011 good luck

**physics**

I'm thinking to just divide 632 days by 87.1 days to determine the half-life

**physics**

If the physical half-life of sulfur-35 is 87.1 days, and the biologic half-life in the testicle is 632 days, what is its effective half-life in this organ? I know i have to find the time and then the half-life. But im having trouble finding the time A(t)=Ao x e ^ (-0.693) (t)...

**Math**

v-7/5=2 What does v equal? Please show all work.

**Physics**

F incline= mg sin θ F incline = (4.7 kg) (9.81 m/s^2) sin (26) F incline = 20.21 N = 21 N Check to see at the back of the book if this is the right answer. If not go over the formula sheet and the problems in the book and so you'll realize the answer

**English Literature-Critical Thinking**

Animals should serve as models for us. They are gentle, cooperative, and family-oriented creatures who fight mainly over territory and mates and rarely kill one another. Humans being engage in group warfare and slaughter one another by millions. In fact, we stop behaving like ...

**Math - Urgent**

2/3x+1/2x=5/6+2x What does x equal? Please show all work.

**Math - Urgent**

3-2/9b=1/3b-7 What does b equal? Please show all work

**Math - Urgent**

3-2/9b=1/3b-7 What does b equal? Please show all work.

**Math - Urgent**

Yes, that is what I meant. Sorry for the confusion. Thank you.

**Math - Urgent**

3/4x+2=7+1/3x What does x equal? Please show all work.

**Math- Urgent**

Thank you.

**Math- Urgent**

Thank you I was confused because I had -8 as an original answer. How would you work 4x-9=6x-13?

**Math- Urgent**

2e= 4e-16 What does e equal? Please show all work.

**MATHS**

In 2006, the digits in Perry's age were the same as the digits in Laura's age, but in reverse order. In 2005, Perry was twice Laura's age. What is the difference between Perry's and Laura's ages?

**MATHS**

Please help! Pedro and Alice raced two model trains along two straight tracks. Pedro's train travelled 7.5 cm every minute. Alice's train travelled 7.5 cm every second. How many centimeters had Alice's train travelled when Pedro's train had travelled 2.75 metre...

**Physics**

To win the game, a place kicker must kick a football from a point 40 m (43.744 yd) from the goal, and the ball must clear the crossbar, which is 3.05 m high. When kicked, the ball leaves the ground with a speed of 23 m/s at an angle of 30.9◦ from the horizontal. The acce...

**Physics**

A ﬁreman, 34.9 m away from a burning building, directs a stream jet of water from a ground level ﬁre hose at an angle of 44.2◦ above the horizontal. If the speed of the stream as it leaves the hose is 60.5 m/s, at what height will the stream of water strike...

**Physics**

To win the game, a place kicker must kick a football from a point 40 m (43.744 yd) from the goal, and the ball must clear the crossbar, which is 3.05 m high. When kicked, the ball leaves the ground with a speed of 23 m/s at an angle of 30.9 ◦ from the horizontal. The acc...

**Physics**

A five-sided object, whose dimensions are shown in the figure, is placed in a uniform magnetic field. The magnetic field has a magnitude of 0.72 T and points along the positive y direction. Determine the magnetic flux through each of the five sides. picture can be found on web...

**physics**

yes that's right, thank you very much.

**physics**

A cardiologist uses an ultrasound scanner with an operating frequency of 3.5 MHz that can detect Doppler frequency shifts as small as 0.1 kHz. What is the smallest flow velocity detectable with this device? Two frequencies are given so I know I have to convert the units but i...

**physics**

okay, one plane is flying north, straight up and the wind blows the plane east [right]. This is almost similar to pythagorean theorem. My guess is to use x^2 + y^2 = z^2. But im pretty sure there's a formula for this in the first or two chapters of the physics book. Look ...

**physics**

There is a relationship between momentum and energy KE = 1/2mv^2 p = mv m = p/v KE = 1/2 (p/v)v^2 KE = 1/2 pv From wiki answers The relation between kinetic energy is proportional to the square of velocity. Momentum is directly proportional to velocity. If the momentum of an ...

**Physics**

Find the potential energy when x = 0 or x = -1 Then using this energy then find speed using KE = 1/2mv^2 m = 1 kg

**Math- Urgent**

1/4 w=13 What does w equal? Please show all work.

**Math- Urgent**

Thank you.

**Math- Urgent**

Thank you. I have one more question. 1/4 w=-13

**Math- Urgent**

15=y+24 What does y equal? Please show all work.

**History**

Those are all good ideas. Thank you!!

**History**

Those are all good ideas. Thank you!!

**History**

My text doesn't say specifically anything, but I have to infer. For Portugal I found four things, but for Spain I only thought of that they had strong armies, they wanted to find the Spice Islands, and that they wanted to spread Christianity to non-Christian areas.

**History**

What are some factors that are responsible for the emergence of Portugal and Spain as the most dominant powers of Europe during the early 16th century? Make sure to have multiple factors for each country.

**math**

Anyone can help me on this qns? The Fourier series expansion for the periodic function,f(t) = |sin t|is defined in its fundamental interval. Taking π = 3.142, calculate the Fourier cosine series approximation of f(t), up to the 6th harmonics when t = 1.09. Give your answe...

**maths**

make x the subject 1/4wxy-p=k

**Maths**

t (1/8x+p)=m Make x the subject

**Fourier Series**

A periodic function f(t), with period 2π is defined as,f(t) = c for 0 < t < πf(t) = -c for -π < t < 0where c = 1.4, Taking π = 3.142, calculate the Fourier sine series approximation up to the 5th harmonics when t = 1.63. Give your answer to 3 d...

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