Saturday

January 31, 2015

January 31, 2015

Total # Posts: 1,185

**Algebra 2**

Find the expansion of (r + 4)^3. r^3 + (3r^2)(4) + 3r16 + 64?
*May 6, 2013*

**Physics**

To measure how far below the ocean surface a bird dives to catch a fish, a scientist uses a method originated by Lord Kelvin. He dusts the interiors of plastic tubes with powdered sugar and then seals one end of each tube. He captures the bird at nighttime in its nest and ...
*May 5, 2013*

**chem 1**

w=-P(delta)V w=(-143.0kPa)(1.35m^3) w=193.05kJ 193.05*1000=193050J
*May 2, 2013*

**social studies**

what is one power given to the state governments in the Constitution
*April 16, 2013*

**Math**

So it's rhombus
*April 16, 2013*

**Math**

Select the geometric figure that possesses all of the characteristics: (1) four equal sides (2) both pairs of opposite sides are parallel (3) it doesn't contain any right angle A) square B) parallelogram C) rhombus D) isosceles triangle I know it's not A or D
*April 16, 2013*

**Chemistry**

If there are 2L of H2 gas at .625 atm, and 1L of N2 gas at .200 atm isolated in two flasks, what are the final partial pressures of each, and the total pressure, after the valve between the two flasks has been opened and the gases are allowed to mix? Is this simply a ratio ...
*April 7, 2013*

**Busines Ethics**

Imagine you are a salesperson.When does offering a gift,Such as basketball tickets,become a bribe rather than just a sales practis ?
*April 4, 2013*

**math**

If line 1 passes through (2, -6) and (-2, -2) and line 2 passes through (-3, 2) and (2, 12), where will line 1 and line 2 intersect? a)(-4,0) b)(-2,-3) c)(-6,2) d) (-2,-2)
*April 2, 2013*

**math**

in the problem its doesn't give me an ^ its a table for an equation in this case y1=6+2x and i need to find the "y1"
*April 2, 2013*

**math**

y1=6+2x x1 y1 -3 ? -2 ? -1 ?
*April 2, 2013*

**Number Theory**

Yan was opening a new restaurant, so she went to the sign store to get letters to make a sign to hang above the storefront. When she got to the sign store, the only letters they had in stock were two copies of the letter 'X,' two copies of the letter 'E,' and ...
*April 1, 2013*

**math**

y1=6+2x x1 y1 -3 ? -2 ? -1 ?
*April 1, 2013*

**math**

y1=6+2x x1 y1 -3 ? -2 ? -1 ?
*April 1, 2013*

**math**

what is the slope of the graph? what does it mean in the context of the problem? the slope for the problem is 2 i don't understand the second question then it says what is the y-intercept and what does the y-intersept represent. for the problem the y-intercept is 3, the ...
*April 1, 2013*

**math**

what is the slope of the graph? what does it mean in the context of the problem? the slope for the problem is 2 i don't understand the second question then it says what is the y-intercept and what does the y-intersept represent. for the problem the y-intercept is 3, the ...
*April 1, 2013*

**Biochemistry**

B! i need B, my brain sucks and won't answer B
*March 31, 2013*

**Algebra 2**

Solve 12^x = 14^3x. I know I need to make the bases the same, but I don't know how.
*March 22, 2013*

**Algebra 2**

Thank you!
*March 22, 2013*

**Algebra 2**

Find a value(s) that makes the expression y^2 - 16 ---------- undefined. y^2 + 16 y=4i?
*March 22, 2013*

**physics**

a 2.1 weight receives 210 j of kinetic energy by a launcher, which is pointed straight up.
*March 21, 2013*

**physics**

a 2.1 weight receives 210 j of kinetic energy by a launcher, which is pointed straight up.
*March 21, 2013*

**math**

Identify a variable that could be described with an approximately normal distribution, and explain how you came to this conclusion.
*March 5, 2013*

**Chemistry**

A 1.44-g sample of an unknown pure gas occupies a volume of 0.336 L at a pressure of 1.00 atm and a temperature of 100.0 degrees Celsius. What is the unknown gas?
*March 4, 2013*

**Chemistry**

A 1.44-g sample of an unknown pure gas occupies a volume of 0.336 L at a pressure of 1.00 atm and a temperature of 100.0 degrees Celsius. What is the unknown gas?
*March 4, 2013*

**science**

what combination of mediums will produce a stright line of light? how do you correct for hyperopia? how do you correct for myopia? what kind of people have an astigmatism? what part of the eye act as a lens and what part acts as a screen? how do different types of lenes bend ...
*March 3, 2013*

**Math:o**

Thank you.
*February 24, 2013*

**Math:o**

It takes a florist 3h 15min to make 3 small centerpieces and 3 large cebterpieces. It takes 6h 20min to make 4 small centerpieces abd 7 large centerpieces. How long does it take to make each small centerpiece and each large centerpiece? Write and solve a system of equations to...
*February 24, 2013*

**Algebra**

Thank you so much!:)
*February 24, 2013*

**World Geography**

The first one is c.
*February 19, 2013*

**computer**

Assume you have a computer that contains 2GB of memory. It contains four memory slots. Each slot can contain 128 MB, 256 MB, 512MB, 1 GB, or 2GB memory modules. Currently, each slot contains a 512MB memory module. What combinations of memory modules will satisfy your memory ...
*February 17, 2013*

**algebra 1**

The value, V, of a certain car after n years is given by the formula below. V = 32,000(0.75)n Based on the formula, what is the value of this car after 3 years? is it 72000
*February 15, 2013*

**algebra 1**

so is the answer 4 because 21*4 = 84
*February 15, 2013*

**algebra 1**

The formula for the volume, V, of a prism is V = Bh, where B equals the base area, and h is the height of the prism. What is the height of a prism with base area 21 cm2 and volume 84 cm3?
*February 15, 2013*

**algebra 1**

Josh hit a baseball straight up into the air. The equation below describes the height of the ball (h), in meters, as a function of time (t) in seconds. h(t) = -9.8t² + 30t + 1.5 What is the height of the ball after 3 seconds? i keep getting -195.9
*February 15, 2013*

**algebra 1**

not it is 71.6 right
*February 14, 2013*

**algebra 1**

is it 145.1
*February 14, 2013*

**algebra 1**

The formula for the height of a falling object is shown below, where h is the height of the object in meters, t is the time in seconds, and k is the height, in meters, from which the object began its fall. h = –4.9t² + k If a rock is dropped from a building that is ...
*February 14, 2013*

**Physics Grade 11**

The normal force is always perpendicular to the surface. So if the box is on a horizontal surface the Normal force it will be equal to the weith of it (mass *gravity) N= m*g N=117.6N the friction force always oposses to the movement and it will be equal to the horizontal ...
*February 10, 2013*

**Math**

Simplify the expression. 9p - 2q - 3 + 10q - 4r + 12
*February 4, 2013*

**ENG**

I'm trying to write a paragraph with levels of generality for English. Here's what I have so far... I need help with grammar and punctuation... also does it make sense ? In the city of Carson, California there is a small house on Mesa Boulevard that is shared among ...
*January 29, 2013*

**Math question **

How many gallons of organge juice are in a full size family jug? I think 1 gallon?
*January 27, 2013*

**accounting**

What is the value of the following future amount? a)RM800 to be received 10 years from now discounted back to present at 10%.
*January 27, 2013*

**accounting**

What is the present value of RM6, 500 to be received 10 years from today if our discount rate is 10%?
*January 27, 2013*

**accounting**

Adam place RM2, 000 in a saving account paying 5% interest compounded annually, how much will Adam account accrue to in a)10 years b)15 years
*January 27, 2013*

**math**

What is the value of the following future amount? a)RM800 to be received 10 years from now discounted back to present at 10%. b)RM1, 000 to be received 8 years from now discounted back to present at 3%.
*January 24, 2013*

**math**

What is the present value of RM6, 500 to be received 10 years from today if our discount rate is 10%?
*January 24, 2013*

**math**

Adam place RM2, 000 in a saving account paying 5% interest compounded annually, how much will Adam account accrue to in 10years and 15years
*January 24, 2013*

**Algebra 2**

Thank you!
*January 23, 2013*

**Algebra 2**

Simplify (2y)(4xy^3). 8xy^4?
*January 23, 2013*

**Algebra 2**

Simplify the polynomial [(6x-8)-2x]-[(12x-7)-(4x-5)]. I came up with two answers: 36x^2 - 72x + 35 or -12x^2 + 8x - 2 Are either one of these the correct answer?
*January 23, 2013*

**Algebra 2**

Factor completely 4ab + 2a + 6b + 3 (2a + 3) (2b + 1)?
*January 23, 2013*

**fractions in simplest form**

i have no clue what it is
*January 17, 2013*

**Pre-AP physical science **

What is the best way to set-up my science fair project that is 40% of my 2nd semester grade and credits ?? A little lost
*January 14, 2013*

**Algebra 2**

Thank you!
*January 8, 2013*

**Algebra 2**

Solve by completing the square 3x(sqaured) - 8x - 6 = 0. Is it 4 - the square root of 34 / 3 and 4 + the square root of 34 / 3?
*January 8, 2013*

**Math **

the shadow if a metre stick is 1.3m long when a students shadow is 2.0m long. How tall is the student?
*December 17, 2012*

**Science Hurry!!!!!!!!!!!!!!!!!!!!!!!!!!!!!**

A.
*December 10, 2012*

**Reading**

I think the answers are 5a 6d 7c 8d 9a 10b 11c 12b
*December 7, 2012*

**Reading**

Choose the option that correctly identifies the words in () in each sentence. 5. (Stretching for 210 miles) , the Thames is in England. (1 point) prepositional phrase gerund phrase participial phrase appositive phrase 6. (Eating flesh with razor-sharp teeth) is how piranhas ...
*December 7, 2012*

**MATHS**

The population of town A increases from 1,346 to 1,500. In the same period, the population of town B increases from 1,546 to 1,800. a. Find the percent of increase in population for town A and for town B. b. Which town had the greater percent of increase? Don't know what ...
*December 6, 2012*

**math**

a carpet for a small room measuring 4 ft by 7.5 ft cost $120 how much would it cost for a carpet (with the same price per square foot) for a bigger room that measures twice as long and three times as wide
*December 5, 2012*

**science**

thank you
*November 29, 2012*

**science**

HELP FAST!!!!!!!!!!!!!!!! If you see that a hot-air balloon is rising above the top of a hill, what is the top of the hill called? A. delta point B. distance system C. coordinate system D. reference point
*November 29, 2012*

**English **

Please help i need to put this sentences in order and combine them in order to make sense. 1. The pizza sits on the table. 2. It is fresh from the oven. 3. It is in the middle of the table. 4. Its crust rises up. 5. The crust is thick. 6. The crust is golden brown. 7. It is ...
*November 27, 2012*

**English **

Combine the sentences below into a brief paragraph,using clear and efficient language.Remember that each sentence contains some information that is essential to the meaning of the overall paragraph; do not omit any necessary details. When you have completed the exercise, ...
*November 27, 2012*

**Math**

The population of a southern city follows the exponential law. If the population doubled in size over 13 months and the current population is 30,000 what will the population be in 5 years from now?
*November 23, 2012*

**US History **

What is the Article of Confederation?
*November 22, 2012*

**Science**

What do you think would happen to the rates of photosynthesis of seagrass and algae if their habitat became muddied when channel clearing caused sediment to stay mixed in with the water? Explain.
*November 21, 2012*

**college math**

A lawn mower handle makes an angle of 60° with the ground. A woman pushes on the handle with a force of 30 pounds. How much work is done in moving the lawn mower a distance of 75 feet on level ground?
*November 17, 2012*

**US history**

What were the strengths of the Article of Confederation and what were the weakenesses?
*November 15, 2012*

**US history **

What were the gains and losses of British and American Revilution?
*November 13, 2012*

**Economics**

If an economy produces its most wanted goods but uses outdated production methods, it is --the answer is "it is not achieving productive efficiency. But doesn't productive efficiency mean using the "least cost method of production"? So if you use outdated ...
*November 8, 2012*

**Psychology -- Check please?**

Studying the effects of mercury on the brain is this type of research Biological Cognitive Behavioral Humanistic Psychoanalytic I'm torn between cognitive and psychoanalytic, but am leaning towards cognitive...
*November 5, 2012*

**physics**

This is an example of Conservation of Momentum. This means total momentum in the system is conserved. Put into an equation this is p1initial + p2initial = p1final + p2final Let's say that the car is obj 1 Minitial = 2000 kg vinitial = 2.0 m/s Mfinal = 2000 kg Vfinal = 0 m/...
*November 4, 2012*

**Psychology -- Check please?**

Gertie can feel roaches running over her feet even though they are not there. What is this called? a fixation a hallucination an illusion an eidetic image a phobia I would think that Gertie would be having some sort of a hallucination..
*November 4, 2012*

**Psychology -- Check please?**

According to Solomon Asch's study of conformity, which of these situations would not increase conformity? feeling insecure feeling you have reached your potential feeling impressed by a group's status feeling that others are watching you feeling that everyone else ...
*November 4, 2012*

**Physics**

A stone is thrown at an angle of 30 degrees above the horizontal from the top of a cliff with an initial speed of 12 m/s. If it hits the ground 4.6 seconds later, what is the height of the cliff?
*November 3, 2012*

**Physics**

A stone is thrown at an angle of 30 degrees above the horizontal from the top of a cliff with an initial speed of 12 m/s. If it hits the ground 4.6 seconds later, what is the height of the cliff?
*November 3, 2012*

**English**

????? Is to rock. Answer needs to have these letters. Clerad
*November 1, 2012*

**P.S**

Explain how parachute works?
*October 30, 2012*

**History**

Why did the British view colonial taxes as fair? Why did colonists argue British taxes were unfair?
*October 30, 2012*

**US History **

Why did the British view colonial taxes as fair? Why did colonists argue British taxes were unfair?
*October 29, 2012*

**Math input/output**

Input. Output 12. 10 16 32. 62. 35 70. 39 86 What is the rule I am in 5 th grade and have no clue
*October 21, 2012*

**Chemistry**

thank you!
*October 20, 2012*

**Chemistry**

Use principles of atomic structure to Explain why in aqueous solution, (a) potassium forms 1+ but not a 2+ ion (a) Ti3+ is colored but Sc3+ is not. (b) Ti2+ is a reducing agent but Ca2+ is not.
*October 20, 2012*

**Chemistry**

thankk you!
*October 20, 2012*

**Chemistry**

Suppose that a stable element with atomic number 119, symbol Wr, has been discovered. (a) Write the ground-state electron configuration for Wr, showing only the valence-shell electrons. (b) Would Wr be a metal or a nonmetal? Explain in terms of electron configuration. (c) On ...
*October 20, 2012*

**Physics**

The tightrope walker gets tired and decides to stop for a rest. During this rest period, she is in translational equilibrium. She stops at middle of the rope and finds that both sides of the rope make an angle of è = 10.00° with the horizontal. If the mass of the ...
*October 19, 2012*

**Physics**

Consider a plane with a velocity relative to the air of 198 m/s in a westerly direction. If the wind has a speed relative to the ground of 56 m/s (in an easterly direction), how long does it take for the plane to travel from one city to another that is due west of the first by...
*October 19, 2012*

**Physics**

A car of mass 1396 kg is parked on a very slippery hillside (see figure below). To keep it from sliding down the hill (è = 15°), the owner attaches a cable. If there is no frictional force between the road and the tires, what is the tension in the cable?
*October 19, 2012*

**Physics**

A piece of wood with mass m = 2.7 kg is held in a vise sandwiched between two wooden jaws as shown in the figure below. A blow from a hammer drives a nail which exerts a force of 460 N on the wood. If the coefficient of static friction between the wood surfaces is 0.61, what ...
*October 19, 2012*

**Physics**

Consider the system of blocks in the figure below, with m2 = 5.0 kg and è = 33°. If the coefficient of static friction between block #1 and the inclined plane is ìS = 0.24, what is the largest mass m1 for which the blocks will remain at rest?
*October 19, 2012*

**Physics**

A skier is traveling at a speed of 36.2 m/s when she reaches the base of a frictionless ski hill. This hill makes an angle of 15° with the horizontal. She then coasts up the hill as far as possible. What height (measured vertically above the base of the hill) does she reach?
*October 19, 2012*

**Math **

Barone’s Italian Restaurant advertises that its customers are much happier than the customers of its main competitors. The claim is based on the results of a customer satisfaction survey Which statement best describes why the graph is misleading? Barone’s rating ...
*October 11, 2012*

**Physics**

Two railroad freight cars with masses 110 Mg and 170Mg approach with equal speeds of 0.330 . They collide, the lighter car rebounding opposite its original direction at 0.270 m/s. Find the velocity of the heavier car after the collision. Assume the original direction of the ...
*October 10, 2012*

**Physics**

For the case of freefall, explain how to calculate the total distance traveled and the instantaneous velocity for an object that is dropped from rest by applying the fundamental meaning of acceleration and by using the two equations: Vav+(vf+vi)/2 and d=vav+t. Is this method ...
*October 8, 2012*

**latin**

Amicus nostris aedibus.
*October 3, 2012*

**THE AGE OF DISCOVERY TO THE AMERICAN EXPERIMENT**

help me out check my answer please
*October 2, 2012*

**THE AGE OF DISCOVERY TO THE AMERICAN EXPERIMENT**

The Articles of Confederation called for which of the following? A. A single legislative body B. A chief executive C. The right of the legislature to assess taxes D. The Northwest Ordinance 2. Jacques Cartier sailed to the New World in 1534 in search of A. Newfoundland. B. a ...
*October 2, 2012*

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