Wednesday

March 4, 2015

March 4, 2015

Total # Posts: 78,475

**Science**

Oxygen moving from the bloodstream into a cell down a concentration gradient is a form of A: osmosis B: endocytosis C: Active transport D: passive transport Is the answer D?
*January 21, 2015*

**Social Studies**

Do you know the answer!?
*January 21, 2015*

**Social Studies**

I marked this at social studies I meant science
*January 21, 2015*

**Social Studies**

Which foods are lipids found in, and what is their function in the body? A: lipids are found in sugars and starches and are the main source of energy for the body B: lipids are found in fats and oils and are an essential component of cell membranes C: lipids are found and fats...
*January 21, 2015*

**chemistry**

A mixture of N2(g) and H2(g) has mole fractions of .40 and .60, respectively. What is the density of the mixture at 1 bar and 0 degrees celsius?
*January 21, 2015*

**Social Studies**

Ok thanks so much! Number 2 was B. And I got 100%
*January 21, 2015*

**Social Studies**

1: The government must provide some goods and services because A: they are too expensive for entrepreneurs to provide. B: demand for them is greater than supply. C: private producers have no incentive to do so. D: not many people are interested in buying them. Is the Answer C...
*January 21, 2015*

**Social Studies.**

What is one problem with putting off the cost of policies in public services? A: The national debt will continue to grow. B: Voters will not enjoy the benefits of the programs. C: politicians will refuse to vote for laws that do this. D: The federal budget will remain balanced...
*January 21, 2015*

**Arts**

What does it mean by Foundation High School Program, Foundation High School Program Plus one Endorsement, and Distinguished Level of Achievement HS program
*January 21, 2015*

**Arts**

Does that go with Speech also
*January 21, 2015*

**Arts**

Just a regular High School.
*January 21, 2015*

**Arts**

Do you need Fine Arts Credits in high School?
*January 21, 2015*

**math**

what is the temperature of the week the ,if the temperature of monday is 33 tuesday is 32 wednesday is 32 thursday is 34 friday is 31 saturday is 30 sunday is 31 , what is the temperature of a week
*January 21, 2015*

**Math**

If I have 87% in a course. What's my mark after my exam worth 15% in which I got 85%?
*January 21, 2015*

**English**

What is the warrant in this article? BOULDER, Colo. — JUST after Christmas, Veronica Rutledge of Blackfoot, Idaho, took her 2-year-old son to a Walmart store to spend holiday gift cards. As they strolled by the electronics section, according to news reports, the toddler ...
*January 21, 2015*

**math**

Solve: Check your solution. 3y - 7 = -3y + - 19
*January 21, 2015*

**Math**

If -f(x), or reflection across the x-axis, is done on .7x - 4, then is the new equation -.7x + 4?
*January 21, 2015*

**Math **

The height was 30, the width was 25,and the length is 20. What is the volume, in cubic inches, of the block of ice? I think you multiply 30x25x20 and get 15,000. The answer is 15,000 cubic inches. Harry wants to make another block of ice with the same volume. He needs one ...
*January 21, 2015*

**Math**

Yes, but you can reduce that to 5/6
*January 21, 2015*

**English**

Thank you! I'm also having trouble finding the warrant. I know that a warrant links the grounds to the claim.
*January 21, 2015*

**English**

Would the claim be ".... Buy smart guns, creating a market and proving they work"
*January 21, 2015*

**English **

What is the claim, warrant, and grounds in this article? Smart Guns Save Lives. So Where Are They? BOULDER, Colo. — JUST after Christmas, Veronica Rutledge of Blackfoot, Idaho, took her 2-year-old son to a Walmart store to spend holiday gift cards. As they strolled by the...
*January 21, 2015*

**Math**

I am asked to graph f(x) = (x+3)^2 + 7 and then f(x) + 2. Is this the same as graphing f(x) = (x+3)^2 + 7 and f(x) = (x+3)^2 + 9?
*January 21, 2015*

**science**

how many milliliters of .2 M sodium hydroxide are needed to completely neutralize 25.0g of sulfuric acid
*January 21, 2015*

**government**

why?
*January 21, 2015*

**government**

Do you think the civil right acts are still necessary today
*January 21, 2015*

**Physics**

jkll
*January 21, 2015*

**math**

Thank you
*January 21, 2015*

**math**

Is the answer to the problem 294 hours?
*January 21, 2015*

**math**

Lisa works 7 hours a day, 7 days a week. How many hours does Lisa work in 6 weeks?
*January 21, 2015*

**physicss**

A heavier mass m1 and a lighter mass m2 are 20.5 cm apart and experience a gravitational force of attraction that is 8.80 10-9 N in magnitude. The two masses have a combined value of 5.65 kg. Determine the value of each individual mass.
*January 21, 2015*

**Math**

When I write the inverse function for y = 3x - 7, can I change y to f^-1(x)?
*January 21, 2015*

**Spanish--2 questions**

24. What can scientists learn from studying the forest around the crater in the Poás volcano? 25. Why do you suppose that no camping is allowed within the Poás Volcano National Park?
*January 21, 2015*

**math**

(1 pt) At the surface of the ocean, the water pressure is the same as the air pressure above the water, about 15lb/in2, Below the surface the water pressure increases by about 4.24lb/in2 for every 10 ft of descent. Write a function f(x) which expresses the water pressure in ...
*January 21, 2015*

**Math**

Thanks to both!
*January 21, 2015*

**Math**

So I have to simplify and then get the exponential?
*January 21, 2015*

**Math**

How to find the inverse of y = log(4)x^2
*January 21, 2015*

**chemistry**

A 0.8743 g sample of KHP was titrated 42.45-mL of NaOH solution until the phenolphthalein endpoint. What is the molarity of the NaOH solution?
*January 21, 2015*

**destop pubblishing**

in order for text wrap words around picture, you need to do what?
*January 21, 2015*

**Health**

can you give me an insite of the WHO Framework Convention on Tobacco Control ??
*January 21, 2015*

**physics **

5. An object is dropped. If one could neglect air resistance a. what would its velocity (magnitude and direction) be after 1 s? b. what would its displacement (magnitude and direction) be after 1 s?
*January 21, 2015*

**physic**

4. A car accelerates at 0.5 m/s2 starting from rest. a. After 4 s what is its velocity? b. After 4 s, how far has it traveled from its starting position?
*January 21, 2015*

**Pychology**

Much research is being conducted on repairing faulty sensory organs through devices such as personal guidance systems and eyeglasses, among others. Do you think that researchers should attempt to improve normal sensory capabilities beyond their “natural” range (for ...
*January 21, 2015*

**Math**

Jim bought 3 1/2 pounds of apples, 2 3/4 pounds of oranges, 1 1/4 pounds of grapes, and 2 5/8 pounds of bananas. If Jim gives Bill 1/5 of the fruit, how many pounds of fruit will Bill receive? This is a word problem for multiplication of fractions, and I don't even know ...
*January 20, 2015*

**Calculus: Intergration**

Need help intergrating 1dx/[(4x − x^2)^3/2] and 1dx/[x^2√(x^2-9)] Thanks
*January 20, 2015*

**Chemistry**

How many grams of CaCl2 * 6H2O are required to make 500 milliliters of a solution having the same concentration of Cl- as one that was prepared by dissolving 75.6 grams of NaCl in enough water to make exactly 1 liter of solution?
*January 20, 2015*

**math homework please help**

simplify cubed root of 432 write 10^5sqrt15 as an entire radical
*January 20, 2015*

**Math**

when the square root of 450 is simplified, the coefficient of the mixed radical is?
*January 20, 2015*

**Math**

fill in the missing number originally: ? new price: $3.80 15% decrease how do you find the original price? help!
*January 20, 2015*

**chemistry**

A 12.42 gram sample of a mixture of NaCl and CaCl2 is dissolved in water and all the chloride is precipitated as AgCl. If the AgCl precipitate has a mass of 31.70 grams. How do I find the mass percentage of each component in the original mixture?
*January 20, 2015*

**Trig/Precalc**

Okay, thanks so much for your hints on the first one! I got it using a combination of point-slope form and arc tangents. I'll wait to hear more on #2 if you have the time :)
*January 20, 2015*

**Chemistry**

if you start with 20.0g of phosphorus 30.0g of oxygen gas, and 15.0g water, what is the maximum mass of phosphoric acid that can be formed?
*January 20, 2015*

**Pre-Calc **

A page that is x inches wide and y inches high contains 30 square inches of print. The margins at the top and bottom are 2 inches and the margins on the side are 2 inch wide. A. show that the total area A on the page is A=2x(2x+7)/(x-4) B. determine the domain of the function ...
*January 20, 2015*

**English**

Endurance to keep doing something for a long period of time like sports
*January 20, 2015*

**English**

Is endurance a physical challenge
*January 20, 2015*

**physics**

In a physics lab, students are asked to predict how the acceleration of the block sliding up a ramp compares to the acceleration down the ramp compares to the acceleration down the ramp. The block slides up a somewhat rough surface inclined at an angle of theta above the ...
*January 20, 2015*

**ascience**

what is the velocity vector of a sailboat traveling east at 20 mph with a wind of 10. mph to the north
*January 20, 2015*

**English**

Is drawing considered a physical challenge
*January 20, 2015*

**Math**

how many times heavier is a 16 1/2 pound rock than a 10 1/2 pound rock?
*January 20, 2015*

**Chemistry**

Our blood works mostly as a carbonic acid buffer which has an optimal buffering pH of about 6.4, the pH of blood is around 7.4. What is the advantage for the body of having the buffer at the non-optimal pH??
*January 20, 2015*

**physics**

When a ball is thrown upward, it experiences a downward accelera- tion of magnitude 9.8 m/s 2 , neglecting air resistance. With what velocity must a ball leave a thrower’s hand in order to climb for 2.2 s before stopping?
*January 20, 2015*

**English**

I have to name some physical challenges. Would aiming be considered a physical challenge
*January 20, 2015*

**physics**

If a car crashes into a wall, the wall puts force on the car. The car puts an equal force on the wall. What does each force do?
*January 20, 2015*

**math**

Digital camera memory card is 1/4 full. Card is 2/3 full when 375 more pictures have been taken. How many pictures can memory card hold? How pictures were originally on memory card?
*January 20, 2015*

**League of Nations**

How did the US Congress feel about the League of Nations
*January 20, 2015*

**Genetics**

Chemical analysis of the DNA of a virus from Mars reveals that it has 48% A, 48% T, and 4% G, Suggest some possible structures for this DNA. I don't quite understand this question. All i can come to think about is that A pairs with T evenly because of the percentages, ...
*January 20, 2015*

**economics**

The _____ Plan, favored by _____ States, proposed giving States equal representation in a unicameral Congress.
*January 20, 2015*

**Math**

Is x(x+6)=0 the same as x = 0 and x + 6 = 0?
*January 20, 2015*

**jp**

C=π*d d=diameter=2r r=radius 176=π*d divide both sides of the equation by π 176/π=d take that answer and divide it by 2 Hope this helped :)
*January 20, 2015*

**Math**

If it takes a tub 20 minutes to fill up when the water is on all the way and 15 minutes to drain, how long will it take for the tub to be completely drained when the water is left all the way on? In 1 hour the tub can fill up 3 times and the tub can drain 4 times. So will it ...
*January 20, 2015*

**Math**

Find the interval for b such thtat the equation has a t least one real solution. i. X^2+bx-6=0 ii. 2X^2+bx-7=0 iii. x^2+bx+3=0 iv. 3x^2+bx+5
*January 19, 2015*

**Math**

f(x)=x64-4x^2+k. Find the values of k so thath the zeros of f satisfy the specified charachteristics. a.four real zeros b.two real zeros, each of multiplicity of two c.two real zeros and two complex zeros d.four complez zeros a.I don't know if this range goes for this or b...
*January 19, 2015*

**Math**

In 8.061, what is the place value of 6?
*January 19, 2015*

**Math**

Solve for x? 1. Divide both sides by -2. This is done to isolate the variable -2x = -16 --- ---- -2 -2 x = 8 <-----
*January 19, 2015*

**Math**

please help
*January 19, 2015*

**Math**

tina, troy and nate had a total of 25 equal-sized square tiles to place over a square grid. Tina used 8/25 of the square tiles. Troy used 1/5 of the square tiles. what fraction of the square grid must Nate place the tiles on so that 1/5 of the square grid is not covered.
*January 19, 2015*

**law**

What kind of questions trigger the reading of the miranda rights? Is there a case that deals with this specific issue... whether the question asked by the police was part of an interrogation or just an informal question getting basic information? Do these ever overlap?
*January 19, 2015*

**Math**

johnny is jogging along a track. He has already jogged 1 2/3 miles. He plans to jog a total of 3/14 miles. How many miles does he have left to jog?
*January 19, 2015*

**Math**

a snail is at the bottom of a well. in the first 10 minutes, the snail climbs 23 7/12 inches. In the next 10 minutes, it climbs 19 5/6 inches. How far is the snail from the bottom of the well after 20 minutes?
*January 19, 2015*

**Math**

arnold buys 8/9 pound of ground turkey. He uses 3/4 pound of the ground turkey to make meatballs. How many pounds of ground turkey are left?
*January 19, 2015*

**Math**

please help
*January 19, 2015*

**Math**

steve picks 55 pounds of pears. He packs equal amount of pears into 6 bags. He then has 4 pounds of pears left. What is the weight of pears in each bag?
*January 19, 2015*

**Math**

jeremy puts an empty container under a leaking faucet. In the first hour, 3/8 quart of water collects. In the second hour, 1/6 quart of container of water collects. how much water collects in the container in the two hours?
*January 19, 2015*

**Math**

11*12=132
*January 19, 2015*

**Math**

Hillside Little League has 12 teams. Each team plays each of the other team twice. How many games are played?
*January 19, 2015*

**Math**

what would the graph look like for the equation f(x)=ax+b/cx+d when a>0, b<0, c>0, d<0?
*January 19, 2015*

**algebra**

What is the area of the largest rectangle with lower base on the x-axis and upper vertices on the curve y = 27 - x2
*January 19, 2015*

**Math**

how'd you get 1/20-1/15?
*January 19, 2015*

**Math**

How long will it take for the tub to completely empty with thte drain open and the water running at full speed? Given: it takes 20 minutes to fill the tub and 15 minutes to drain the tub when the water is on all the way, full speed.
*January 19, 2015*

**Math**

Write a rational function satisfying the following criteria. vertical Asymptote: x=-1, slant asymptote: y=x+2, zero of the function: x=3 I had f(x)=x^2+3x+2/x+1, that only works for the asymptotes and not the zero can someone please help me figure how to satisfy all three ...
*January 19, 2015*

**math**

integrate (Abs value(secx)^2/cscx)sinx dx
*January 19, 2015*

**Chemistry**

If equal volumes of the following are combined, would they form buffered solutions? Why or why not? .1M HF and .05M NaF I'm am a bit confused about how I can figure out if these will form buffers or not, so I'd really appreciate it if someone could explain it to me. ...
*January 19, 2015*

**calc**

but with integration there is no power rule wouldn't I have to use substitution?
*January 19, 2015*

**calc**

integrate (3+x)x^(1/2)dx=? please help I have no idea how to integrate this problem
*January 19, 2015*

**Please reply Dr. Bob**

So the answer is that this will form a buffer?
*January 19, 2015*

**Chemistry**

Okay, thank you Dr. Bob. So just to confirm, it does not matter that the weak acid and its conjugate base are added in different amounts?
*January 19, 2015*

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