Friday

February 27, 2015

February 27, 2015

Total # Posts: 78,253

**Math**

Capacity Homework? I was doing my grade 8 math homework on capacity, and I was told to order the capacity of Vase A, B, and C from least to greatest. Vase C is a hourglass based prism, and I don't know the formula for it. Please help?
*January 5, 2015*

**math,trigonometry**

thank you so much !! :)
*January 5, 2015*

**math,trigonometry**

solve each triangle described below using Δ ABC : 1)a = 10, A = 16°, B = 49° 2)a = 8, b = 7, A = 88° I dont know how to do this i forgot ... could u help (Steve, or Mrs.Sue, or Writeteacher plz help) this topic is Oblique triangle
*January 5, 2015*

**art**

Jennifer throws a fair six-sided die, what is the probability that she throws either 1,2,3,4,5,or 6?
*January 5, 2015*

**Math**

Identify this polynomial as a perfect square trinomial, a difference of squares, or neither. 9a^2+9a+36 Is it difference of squares?
*January 4, 2015*

**Pre-calc/trig**

nvm for this one
*January 4, 2015*

**Pre-calc/trig**

5=log3(x^2+18)
*January 4, 2015*

**Fitness and nutrition**

What are the signs of heat exhaustion
*January 4, 2015*

**math**

If the temperature is 3°f at 10:00 p.m, and the temperature falls four degrees overnight, what is the resulting temperature
*January 4, 2015*

**Pre-calc/Trig**

For each parabola, find the vertex and focus. x= (1/400)y^2 y= 1/8(x-3)^2-1
*January 4, 2015*

**Pre-calc/Trig**

For each parabola, tell in which direction the graph opens. x= 1/2y^2 y= -1/24x^2
*January 4, 2015*

**Analytical Geometry**

a soccer game is being televised by a certain tv station. a camera is situated 10 meters away from the longer side of the soccer field and 7 meters from the middle part.
*January 4, 2015*

**math**

Draw a number line counting by 10s for 240
*January 4, 2015*

**Math**

John was visiting three cities that lie on a coordinate grid at (-4, 5), (4, 5), and (-3, -4). If he visited all the cities and ended up where he started, what is the distance he traveled? Round your answer to the nearest tenth. (like 3.2 or 5.7)
*January 4, 2015*

**english**

"keep on crying out, dont let me hit the ground" your soul is crying out, dont let hit me the ground"
*January 4, 2015*

**english**

What does don't let me hit the ground means? it's part of the verse in the song i chose to present in school please just give me an idea on what those words mean
*January 4, 2015*

**Physics, Math, Aerospace, Engineering**

That is not the correct value for a, you must divide f by m giving you .469m/s2 From there divide the original 99.1 m/s by .469m/s^2 to give you your time.
*January 3, 2015*

**Algebra2**

the -16 comes from the acceleration due to gravity. That is -32 ft/s^2. The general form starting at height h with upward velocity v is s(t) = h + vt + 1/2 at^2 where a is negative, since gravity pulls downward.
*January 3, 2015*

**language arts**

is it d?
*January 3, 2015*

**language arts**

choose the meaning of the word stealthily in the sentence. The spies moved stealthily among the colonists, trying to gather information for the British leaders A openly B noisily C swiftly D sneakily is it c or d?
*January 3, 2015*

**maths**

ar^3 = 7 ar^7 = 16807 So, that means that ar^7/ar^3 = r^4 = 16807/7 Now it's easy to find r.
*January 3, 2015*

**Math**

just convert to the slope-intercept form, and read them off. 2y + 4n = -6x 2y = -6x - 4n y = -3x - 2n
*January 3, 2015*

**trig**

the two functions are clearly not the same, since one is pure sines and cosines (just a bunch of wavy stuff), and the other is pure tangents (full of asymptotes).
*January 3, 2015*

**Calculus**

∫csc x cot^2 xdx
*January 3, 2015*

**Science**

Please explain what the authors, Hewlett, Martinez & Peters, Ted, mean when they write that the neo-Darwinian model is very fertile? Please explain one of their three examples of this fertility.
*January 2, 2015*

**Science**

According to the authors, Hewlett, Martinez & Peters, Ted, why should the Christian commitment to truth lead Christians to support Darwinian and neo-Darwinian scientific research?
*January 2, 2015*

**Biology**

Does the electron transport chain part of cellular respiration involve carbon or carbon dioxide?
*January 2, 2015*

**math**

Evan buys 2 CDs. $1.49 is added to the total price which is the 5% sales tax. What is the cost for each of the CDs?
*January 2, 2015*

**physics**

Explain why a minibus is more likely to topple over when the roof rack is heavily loaded than when the roof rack is empty.
*January 2, 2015*

**language arts**

thank you! do you know the answer to the other question I posted?
*January 2, 2015*

**language arts**

2 100% right
*January 2, 2015*

**language arts**

what do you think Mrs. sue?
*January 2, 2015*

**language arts**

ok. are you sure? I was thinking 1. Thanks for you r help!
*January 2, 2015*

**French**

Would the contraction for du and les be des?
*January 1, 2015*

**physics**

A ball strikes against the floor and returns with double velocity.In which type of collision is it possible?
*January 1, 2015*

**Biology**

Which of the following sequences is an example of a point mutation of the DNA sequence -A-A-G-T-G-C- ? (What?) -A-A-A-T-G-C- -A-A-G-U-G-C- -G-T-A-G-A-A-C- -A-A-G-G-T-C-
*December 31, 2014*

**Calculus**

f(x)= x/(1+x)^2 c) find the intervals of concavity and the inflection points. My answers: f is concave downward on (- infinity, 2) and concave upward on (2, infinity). Inflection point: ( 2, 2/9)
*December 31, 2014*

**Calculus**

Thank you, Damon!
*December 31, 2014*

**Calculus**

I don't get how you get this part: f' = (1-x)/(1+x)^3 f" = [(-1)(x+1)^3 - 3(1-x)(x+1)^2]/(x+1)^6 = [-(x+1)+3(x-1)]/(x+1)^4 ( I don't understand how you got this!!) = (-x-1+3x-3)/(x+1)^4 = (2x-4)/(x+1)^4
*December 31, 2014*

**psych**

Imagine you are a researcher who believes that a relaxation technique involving visualization will help people with mild insomnia fall asleep faster. You randomly select a sample of 20 participants from a population of mild insomnia patients and randomly assign 10 to receive ...
*December 31, 2014*

**english**

Essays, articles, and speeches are all works of nonfiction. Which of the following is an accurate statement about the authors of nonfiction? A. They are always real people. B. Their style is always full of figurative language. C. They usually focus on retelling historical ...
*December 31, 2014*

**Calculus**

What is the derivative of f(x)=(10-3x)/2• sqrt of (5-x)?
*December 31, 2014*

**physics**

10. A 2-kg object is moving at 3m/s. A 4-N force is applied in the direction of motion and then removed after the object has traveled an additional 5m. The work done by this force is: A. 12 J B. 15 J C. 18 J D. 20 J E. 38 J ans: D 11. A sledge (including load) weighs 5000 N. ...
*December 31, 2014*

**Calculus **

f(x)= x/(1+x)^2 a) find the intervals on which f is increasing or decreasing. Is it ....f is decreasing on the intervals (- infinity, -1) and (1, infinity)...f is increasing on the interval (-1, 1)....... b)find the local min and max values of f.. For f(-1) I got undefined... ...
*December 31, 2014*

**Math**

I am aware. However, my test says to ONLY use multiplication or division using fractions.
*December 31, 2014*

**Math**

If 360 workers called in sick and 240 went to work, how many workers work at the company all together? Solve using fractions and multiplication or division. Obviously the answer is 600 but how do I solve the problem using multiplication or division?
*December 31, 2014*

**Calculus**

a) find the intervals on which f is increasing or decreasing. Is it ....f is decreasing on the intervals (- infinity, -1) and (1, infinity)...f is increasing on the interval (-1, 1)....... b)find the local min and max values of f.. For f(-1) I got undefined... f(1)=1/4....... ...
*December 31, 2014*

**Algebra**

.06 (3000)t = 500
*December 31, 2014*

**earth science**

monsoon
*December 30, 2014*

**Pre-Calc/Trigonometry**

oh okay i got 25 minutes, is that right?
*December 30, 2014*

**Pre-Calc/Trigonometry**

You place a cup of 205oF coffee on a table in a room that is 72oF, and 10 minutes later, it is 195oF. Approximately how long will it be before the coffee is 180oF? Use Newton's law of cooling: 1 hour 25 minutes 15 minutes 45 minutes
*December 30, 2014*

**Pre-Calc/Trig**

A potato is put into an oven that has been heated to 350F. Its temperature as a function of time is given by T(t) = a(1 - e-kt) + b. The potato was 50F when it was first put into the oven. if the potato is 60F after 2 minutes, what is the value of k? ...
*December 30, 2014*

**Pre-Calc/Trig**

okay thanks :)
*December 30, 2014*

**Pre-Calc/Trig**

A body was found at 6 a.m. outdoors on a day when the temperature was 50oF. The medical examiner found the temperature of the body to be 66oF. What was the approximate time of death? Use Newton's law of cooling, with k = 0.1947. A. Midnight (12 a.m.) B. 5 a.m. C. 2 a.m. D...
*December 30, 2014*

**us history**

Thx! I bet this person goes to Lavilla like me... It's on our civics take-home test
*December 30, 2014*

**us history**

Army Major Hart is accused of stealing the payroll for his division. Which type of law would he be subject to: A. Civil B. Criminal C. Military D. Constitutional
*December 30, 2014*

**Health**

But there are both good and bad stress.
*December 30, 2014*

**Health**

Would laughing to jokes count as stress?
*December 30, 2014*

**REVISED Improving Writing.**

Thank you, I corrected that :) !
*December 30, 2014*

**REVISED Improving Writing.**

Draft an interoffice memorandum to Miriam Hopkins, the Director of Human Resources: a. Assume that you’ve received confirmation from Jeremy Dittmer for the date, time, and materials needed. The trainer he has assigned is Deb Walker (email: Deb.Walker..). b. Outline the ...
*December 30, 2014*

**Math**

142500
*December 30, 2014*

**algebra**

a premature baby weighs only 3 pounds, 2 ounces at birth. After 16 days in intensive care, the baby has gained 22 ounces. Measure the babys age in days and weight in ounces. Assume the baby continues to gain weight at this same rate and a month has 30 days. What could be a ...
*December 30, 2014*

**maths**

An open rectangular box measuring 28cm by 20cm by 12cm internally is made of wood 0.5 cm thick. find the volume of wood used in making box?
*December 30, 2014*

**physics**

Two carts are in contact on a horizontal frictionless surface. Cart 'A' has a mass of 3 kg, and cart 'B' a mass of 2 kg. (a) Find the force F on 'A' needed to give the two carts an acceleration of 0.8 m/sec2 . What is then the force exerted on 'B&#...
*December 30, 2014*

**Pre-Trig/Calc**

Please help :) A potato is put into an oven that has been heated to 350F. Its temperature as a function of time is given by T(t) = a(1 - e-kt) + b. The potato was 50F when it was first put into the oven. What is the value of b in this context? Explain. What is ...
*December 29, 2014*

**PRE-CALC**

thanks Damon :)
*December 29, 2014*

**PRE-CALC**

If you put $2,000 in a savings account that pays 6% interest compounded continuously, how much money will you have in your account in 4 years? Assume you make no additional deposits or withdrawals
*December 29, 2014*

**geometry**

draw the grid
*December 29, 2014*

**geometry**

Find the locus of a point which is equidistant from the origin and the point (-2,5)
*December 29, 2014*

**RE RE REVISED IMPROVING WRITING**

Special note to my all time favorite: Writeacher: I am sorry that my changes seemed as if I did not read your first notations, I did and I admit I changed only a few words. I am sorry if you thought I ignored it and just re submitted it. I am a beginner in writing business ...
*December 29, 2014*

**Water Treatment**

a) need solution b)5 c)2
*December 29, 2014*

**Improving Writing- REVISED VERSION**

Assume that you’ve worked for the last five years as an administrative assistant for the Human Resources Department of Broadworth General Hospital. The Director of Human Resources, Miriam Hopkins, has charged you with organizing a two-hour training seminar to be attended ...
*December 29, 2014*

**calculus**

A rectangular box has a square base with an edge length of x cm and a height of h cm. The volume of the box is given by V = x^2h cm^3. Find the rate at which the volume of the box is changing when the edge length of the base is 12 cm, the edge length of the base is decreasing ...
*December 29, 2014*

**calculus**

A rectangular box has a square base with an edge length of x cm and a height of h cm. The volume of the box is given by V = x^2h cm^3. Find the rate at which the volume of the box is changing when the edge length of the base is 4 cm, the edge length of the base is increasing ...
*December 29, 2014*

**math**

Describe a situation this week when you used math to solve a problem involving data, graphs and statistics.
*December 29, 2014*

**IMPROVING WRITING**

I have 3 essays if someone could correct them for me ! #1 I am writing to you regarding an upcoming seminar that will cover the sensitive topics of sexual harassment and unlawful discrimination. It would be my humble request if you could supply an appropriate trainer who will ...
*December 28, 2014*

**geography**

Why is the biodiversity of the rain forest important
*December 28, 2014*

**Physics**

Thanks!
*December 27, 2014*

**Physics**

a 15000 kg airplane descends a vertical distance of 10.0 km over a horizontal distance of 80.0 km. What is the airplane's loss of potential energy. (I'm confused about the height) Ep=mgh m= 15000 kg g= 9.81 m/s^2 h=??
*December 27, 2014*

**Biology**

That's why I'm confused. I'm asked about where it ends, and it is not exactly an open-ended question.
*December 27, 2014*

**Biology**

Where does the carbon cycle end? My project asks this, but I can of no specific "ending."
*December 27, 2014*

**Biology**

How does oxygen move in a food chain? When one organism eats another, does the oxygen move from the tissues of the prey to the predator, or is it something different?
*December 27, 2014*

**English**

What does the idiom to be "a little on the short side" mean?
*December 27, 2014*

**math**

i thought of it like this: 36 divided by 4 is 9, so if i divided 24 by 9, i might get the answer. but i wasn't sure, so i asked.
*December 26, 2014*

**math**

a muffin recipe calls for 4 cups of sugar and yields 36 muffins. if amelia only wants to make 24 muffins, how much sugar will she need?
*December 26, 2014*

**math**

thanks!
*December 26, 2014*

**math**

the bookstore normally sells mechanical pencils for $6.50. this week the pencils are discounted by 25%. to the nearest cent, what is the amount of the discount?
*December 26, 2014*

**Algebra**

well no problem!
*December 26, 2014*

**Algebra**

I could not have gotten this without your help. I kept getting 5040.
*December 26, 2014*

**Algebra**

10C6 = 10! / (6! * 4!) = 10 * 9 * 8 * 7 / 4! = 5040/24 = 210 hope this helps
*December 26, 2014*

**Algebra **

What is the value of 10C6? (How go get it?)
*December 26, 2014*

**engineering mechanics**

A block P weighing 200KN rests on the top of the block Q of weight 300KN and they are connected by a common string passing around a frictionless pulley S which is tied to a vertical wall by a horizontal string as shown if the coefficient of friction between the rubbing ...
*December 26, 2014*

**physics**

A golfer takes two putts to sink his ball in the hole once he is on the green. The ﬁrst putt displaces the ball 8.70 m east, and the second putt displaces it 6.04 m south. What displacement would put the ball in the hole in one putt? Answer in units of m and.......... ...
*December 25, 2014*

**French**

Which sentence is correct? Les chiens de filles sont gentils. Les chiens des filles sont gentils.
*December 25, 2014*

**English - Animal Farm**

The apples and milk.
*December 24, 2014*

**English - Animal Farm**

What negative traits are visible in the pigs after the rebellion in Chapters 1-3? I have read the chapters, but I can only come up with one example.
*December 24, 2014*

**Language arts**

What's your answer for this question?
*December 24, 2014*

**math**

Tom has $10 that he wants to use to buy pens and pencils. However, he does not want to buy more pens than pencils. A pen costs $3, and a pencil costs $1. Which graph represents this scenario? (Here, x represents the number of pens and y the number of pencils.)
*December 24, 2014*

**English**

Identify the sound device Shakespeare uses in this passage: HAMLET. Whose spirit with divine ambition puffed Makes mouths at the invisible event, —Hamlet, act 4, scene 4 I think it is D assonance alliteration onomatopoeia meter
*December 24, 2014*

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