Monday

December 22, 2014

December 22, 2014

Total # Posts: 75,771

**social studies**

why did Deganawida think it was important to stop fighting?
*October 26, 2014*

**Chemistry**

Find the enthalpy change of the following reactions 2C+2H2O---> CO2+CH4 Using the following reactions with their change in H values. C+H2O---->CO+H2 H=+131.1kjmol-1 Co+H2O---->CO2+H2. H=-41.2kjmol-1 CH4+H2O--->CO+3H2 H=15.3
*October 26, 2014*

**Chemistry**

Find the enthalpy change of the following reactions 2C+2H2O---> CO2+CH4 Using the following reactions with their change in H values. C+H2O---->CO+H2 H=+131.1kjmol-1 Co+H2O---->CO2+H2. H=-41.2kjmol-1 CH4+H2O--->CO+3H2 H=15.3
*October 26, 2014*

**physics**

If an object is initially moving with a constant velocity of 20m/s towards positive x-axis and after 5 sec it changes its direction and moving at an angle of 30o with x-axis, find magnitude and direction of its acceleration.
*October 26, 2014*

**chemistry**

The reaction of 2.5 mol of O2 with 4.6 mol of C3H8 will produce ________ mol of H2O.
*October 26, 2014*

**Physics**

A cannon ball is fired horizontally with velocity of 15m from the top of a cliff 90m high.after how many seconds will it hit the foot of the cliff(a)time (b)at what distance from the foot of the cliff will it strike.
*October 25, 2014*

**Physical Education help**

The body's reaction to information is to send these to the brain. A. Neurons B. Impulses C. Dendrites D. Synapse Is the answer B? Thank you
*October 25, 2014*

**Physical Education help**

Thank you :)
*October 25, 2014*

**Physical Education help**

When diving into water, it is important to look before diving to avoid (blank) that could damage your nervous system. A. Deep water B. Underwater hazards C. Living creatures D. Water toys Is the answer B? Thanks
*October 25, 2014*

**Physical Education help**

Thank you Ms. Sue!
*October 25, 2014*

**Physical Education help**

The part of the brain that controls movement and balance is the A. Cerbrum B. Cerebellum C. Brain stem D. Frontal lobe Is the answer B? Thanks
*October 25, 2014*

**Economy, management, corporate governance**

BOB'S SUPERMARKET: COMPETING WITH THE BIG BOYS
*October 25, 2014*

**Math**

The data shows the total number of employee medical leave days taken for on-the-job accidents in the first six months of the year: 16, 7, 23, 9, 25, 16. Find the standard deviation.
*October 25, 2014*

**Science HELP!**

When diving into water, it is important to look before diving to avoid (blank)damage your nervous system. A. Deep water B. Underwater hazards C. living creatures D. Water toys Is the answer B? Thanks
*October 25, 2014*

**Science HELP!**

The part of the brain that controls movement and balance is the A. Cerbrum B. Cerebellum C. Brain stem D. Frontal lobe Is the answer B? Thanks
*October 25, 2014*

**math**

Thanks so much
*October 25, 2014*

**math**

8x-1=55
*October 25, 2014*

**Science HELP!**

The body's reaction to information is to send these to the brain. A. Neurons B. Impulses C. Dendrites D. Synapse Is the answer B? Thanks
*October 25, 2014*

**8th grade; English**

c b d c, tell me which ones are wrong and give me the answers to them
*October 25, 2014*

**Math**

Im still confused on how to solve these equations for the indicated value. 1. a-b=-c, for a 2. y=1/2x-10, for x
*October 25, 2014*

**Fundamental engineering principles **

A car traveling at 108 km hr-1 deceleration uniformly from 108 km hr-1 to 72 km hr-1whilst covering 200m.it continues at this reduced for 150m before slowing down uniformly to rest over a distance of 225m. Draw the velocity-time diagram and use it to determine: (A)the total ...
*October 25, 2014*

**Calculus/pre-trig**

Write the formula for the discriminant. State the types of roots for a quadratic equation, explaining how the discriminant helps you determine the type.
*October 25, 2014*

**Math**

How do you solve each of these equations for the indicated value? I'm so confused on how to do it 1. a-b=-c, for a 2. 4y+6x=12, for y 3. y=1/2x-10, for x
*October 25, 2014*

**Math**

a) One mould forms a sculpture that is a composite object comprising a right cylinder with base diameter 15 in. and height 3 in., and a right cone with the same base diameter as the base of the cylinder and a height of 9 in. Determine the volume of the sculpture to the nearest...
*October 25, 2014*

**Precalculus**

A cruise ship sets a course N50°E from an island to a port on the mainland, which is c = 170 miles away. After moving through strong currents, the ship is off course at a position P that is N36°E and a = 90 miles from the island, as illustrated in the figure. (a) ...
*October 25, 2014*

**Math**

An igloo approximates a hemisphere, with an entrance tunnel that approximates half a right cylinder. The base of the igloo has diameter 4.0 m. The entrance is 0.8 m long; it has an external radius of 0.8 m and an internal radius of 0.7 m. Calculate the surface area of the ...
*October 25, 2014*

**Math**

f(x)=3x^2-x-2 If x=2, what is f(x)? What point is on the graph of f? For the first question, I got 8. But, I'm having trouble understanding the second question.
*October 25, 2014*

**Pre-Calc/Trig**

Yes, its correct.
*October 25, 2014*

**Math**

A solid sphere just fits inside a cube that has an edge length equal to the diameter of the sphere. The edge length of the cube is 5.8 cm. What is the volume of air in the cube to the nearest cubic centimetre?
*October 25, 2014*

**math**

1/64
*October 25, 2014*

**math**

i really dont know can you please tell me the correct one 4.1/16 5.1/4
*October 25, 2014*

**Precalculus**

39 + 21 + 39= 99
*October 25, 2014*

**Precalculus**

A reconnaissance airplane P, flying at 11,000 feet above a point R on the surface of the water, spots a submarine S at an angle of depression of β = 21° and a tanker T at an angle of depression of α = 39°, as shown in the figure. In addition, ∠SPT is ...
*October 25, 2014*

**Pre-Calc/Trig**

oh wait, nvm
*October 25, 2014*

**Pre-Calc/Trig**

oh okay thank you, do i plug them in now or leave it at that?
*October 25, 2014*

**Precalculus**

The rectangular box shown in the figure has dimensions 10" × 7" × 3" (a = 10, b = 7, c = 3). Approximate the angle θ formed by a diagonal of the base and a diagonal of the 7" × 3" side. (Round your answer to two decimal places.)
*October 25, 2014*

**Lauren**

Let f(x) = 3+4x-x^{3}. Find the open intervals on which f is increasing (decreasing). Then determine the x-coordinates of all relative maxima (minima). 1. f is increasing on the intervals 2. f is decreasing on the intervals
*October 25, 2014*

**math**

Let f(x) = 3+4x-x^{3}. Find the open intervals on which f is increasing (decreasing). Then determine the x-coordinates of all relative maxima (minima). 1. f is increasing on the intervals? 2. f is decreasing on the intervals?
*October 25, 2014*

**Precalculus**

An airplane flies 180 miles from point A in the direction 135° and then travels in the direction 240° for 90 miles. Approximately how far is the airplane from A? (Round your answer to the nearest whole number.)
*October 25, 2014*

**8th grade language arts**

Can you help me with it
*October 25, 2014*

**8th grade language arts**

i will tell u what i got and you tell me if it is correct a b c d
*October 25, 2014*

**physics**

A 20 g fridge magnet is being held onto the fridge by a 0.9 N force. coefficient of kinetic friction is 0.3 . (please include an FBD when giving the solutions) a. calculate the friction acting on the magnet. b. calculate the weight of the magnet c.the acceleration of the ...
*October 25, 2014*

**statistics**

For a normal distribution (symmetrical), a value that is two standard deviations below the mean would be closer to which of the following? Select one: a. 89th percentile b. Third Quartile c. Third percentile d. Median
*October 25, 2014*

**Algebra**

Line AB is parallel to line CD for A(4, -5), B(-2, -3), C(x, -2), D(6, y). Find a set of possible values for x and y.
*October 25, 2014*

**Physics**

A father pulls his son, whose mass is 27.3 kg and who is sitting on a swing with ropes of length 2.85 m, backward until the ropes make an angle of 36.8° with respect to the vertical. He then releases his son from rest. What is the speed of the son at the bottom of the ...
*October 24, 2014*

**Physics!**

A spring with a spring constant of 224.3 N/m is compressed by 0.253 m. Then a steel ball bearing of mass 0.0433 kg is put against the end of the spring, and the spring is released. What is the speed of the ball bearing right after it loses contact with the spring? (The ball ...
*October 24, 2014*

**Physics!**

A car of mass 1298.7 kg is moving at a speed of 64.0 mph when it misses a curve in the road and hits a bridge piling. If the car comes to rest in 0.234 s, how much average power (in watts) is expended in this interval?
*October 24, 2014*

**Physics**

If you are at the top of a toboggan run that is 44.3 m high, how fast will you be going at the bottom, provided you can ignore friction between the sled and the track?
*October 24, 2014*

**Physics**

A classmate throws a 1.1-kg book from a height of 1.3 m above the ground straight up into the air. The book reaches a maximum height of 4.0 m above the ground and begins to fall back. Assume that 1.3 m above the ground is the reference level for zero gravitational potential ...
*October 24, 2014*

**Physics**

A classmate throws a 1.1-kg book from a height of 1.3 m above the ground straight up into the air. The book reaches a maximum height of 4.0 m above the ground and begins to fall back. Assume that 1.3 m above the ground is the reference level for zero gravitational potential ...
*October 24, 2014*

**physics**

Calculate the mass of H2O produced by metabolism of 2.6kg of fat, assuming the fat consists entirely of tristearin (C57H110O6), a typical animal fat, and assuming that during metabolism, tristearin reacts with O2 to form only CO2 and H2O.
*October 24, 2014*

**SS**

How many airlines are owned by USA-based companies?
*October 24, 2014*

**Pre-Calc/Trig...**

Help me please Standard form: y=x^2-2x-3 Vertex form: ??? Intercept form: ???
*October 24, 2014*

**math**

I have 21 children in my class total. 6 of them are boys and 15 of them are girls. What is the percentage of males in the class
*October 24, 2014*

**algebra**

Ace car rental rents a car for $45 and .25 cents per mile. Star rental car rents a car for $35 and .30 cents per mile. How many miles would a driver need to drive before the cost of renting a car at these two places were the same?
*October 24, 2014*

**Civics PLEASE HELP ME!**

Thank you so much!! This will help me a lot!
*October 24, 2014*

**Civics PLEASE HELP ME!**

it is a breakup letter between the colonists and Great Britain. Please help?!
*October 24, 2014*

**Civics PLEASE HELP ME!**

Can anyone help me with a breakup letter for civics?? It is quite difficult for me. It is about the Declaration of Independence.
*October 24, 2014*

**math**

MRS SUE ANSWER MY QUESTION
*October 24, 2014*

**math**

MRS SUE ANSWER MY QUESTION
*October 24, 2014*

**math**

The answer is Idk and idc
*October 24, 2014*

**science**

thank you very much Ms.Sue
*October 24, 2014*

**science**

a horticultural wants a plant that produces flowers with a certain size color and fragrance but it now aware of any one plant having all of these traits. the quickest way she could achieve her goal would be to apply the process of_____________
*October 24, 2014*

**Math**

Interest is a concept familiar to most people: every credit card in existence has a term called annual percentage rate (APR), which is an interest rate. Suppose you charged $1,000 to a credit card that has a minimum payment each month equal to the interest owed. Can you figure...
*October 24, 2014*

**Physics**

As shown in the figure below, a skateboarder starts at point A on the ramp and rises to point B, a maximum height of h = 2.89 m above the top of the ramp. If the amount of work done against friction is insignificant, determine his initial speed at point A.
*October 24, 2014*

**Latin I**

Oh I found it.
*October 24, 2014*

**Latin I**

So would it be: The farmer and the woman showed the poet's farmhouse to the queen.
*October 24, 2014*

**people**

Which of the following conclusions is supported by the results of these studies
*October 24, 2014*

**Math**

There are two chords AB and AC in a circle.[AB]=10cm, [CD]=8cm and the radius of the circle is 12cm.what is the distance of each chord from the centre of the ccircle?
*October 24, 2014*

**Algebra**

(2a - b)^3 = 8a^3 - 8a^2b + 4ab^2 - b^3?
*October 24, 2014*

**matlab**

Find the maximum and minimum values of f( x,y)=2x^3+xy^2+5x^2+y^2
*October 24, 2014*

**chemistry**

You need 2.5 moles of aluminum for an experiment. How many atoms of aluminum is this?
*October 24, 2014*

**biology**

what is contracting subunit of skeletal muscle called
*October 23, 2014*

**statistics**

The physical plant at the main campus of a large state university recieves daily requests to replace florecent lightbulbs. The distribution of the number of daily requests is bell-shaped and has a mean of 46 and a standard deviation of 9. Using the empirical rule (as presented...
*October 23, 2014*

**Algebra**

How do I simplify (2a - b)(4a^2 - 2ab + b^2)? I keep getting 8a^3 - 8a^2b + 4ab^2 - b^3, but it shows wrong.
*October 23, 2014*

**math**

-15?
*October 23, 2014*

**math**

Points A and B lie on the graph of the equation y = -4.3x. What are the y coordinates for each point? Point A: (-3, ) Point B: (5, ) Not multiple choice.. confused on how to find the other points
*October 23, 2014*

**kindgardn**

24 -13 ----- 11
*October 23, 2014*

**chemistry**

Calculate the word done in joules when 1.0 mile of water vaporizes at 1.0 atm and 100 degrees Celsius. Assume that the volume of liquid water is negligible compared with that of steam at 100 degrees celcius, and ideal gas behavior.
*October 23, 2014*

**Science**

A straight line with a positive slope on a velocity-time graph indicates which of the following? no movement constant acceleration toward the reference constant velocity away from the reference constant acceleration away from the reference
*October 23, 2014*

**Simple Physics**

Which of the following is most appropriate to follow motion in one dimension? -linear scale -solid coordinates -x-y-z coordinates -graph with x- and y-axes
*October 23, 2014*

**help**

What government dose One Person Or Small Group Holds All The Power?
*October 23, 2014*

**physics**

A person is standing on a spring bathroom scale on the floor of an elevator which is moving up and slowing down at the rate of 1.53 m/s 2 . The acceleration of gravity is 9.8 m/s 2 . If the person’s mass is 83.4 kg, what does the scale read?
*October 23, 2014*

**Physics**

A box slides from rest down a frictionless ramp inclined at 35.0° with respect to the horizontal and is stopped at the bottom of the ramp by a spring with a spring constant of k = 3.50 104 N/m. If the box has a mass of 12.0 kg and slides 3.00 m from the point of release to...
*October 23, 2014*

**Physics**

A massless pan hangs from a spring that is suspended from the ceiling. When empty, the pan is 50 cm below the ceiling. If a 105 g clay ball is placed gently on the pan, the pan hangs 60 cm below the ceiling. Suppose the clay ball is dropped from the ceiling onto an empty pan. ...
*October 23, 2014*

**Physics**

Two massless springs (S1 and S2) are arranged such that one hangs vertically downward and the other is vertically upward, as shown in figure (a). When a 0.275-kg mass is suspended from S1, it stretches by an amount Δx1 = 0.062 m, as shown in figure (b). Spring S1 is now ...
*October 23, 2014*

**Math**

Can you also use the LCM of the denominators of the fractions to rewrite the difference 8/15-1/6? What is the difference?
*October 23, 2014*

**French**

Yes. Boy. "Une" is girl. (:
*October 23, 2014*

**French**

you know there are free translators on the internet. you could just type it into google
*October 23, 2014*

**French**

Boy?
*October 23, 2014*

**French**

If I introduce to you "un copain," is the person a boy, girl, or a teacher?
*October 23, 2014*

**English/help almost due**

Please Ms. Sue. I know that they all made their own important influence. I just don't know which impact was the largest.
*October 23, 2014*

**English/help almost due**

which writer of early romanticism—Washington Irving, James Fenimore Cooper, and William Cullen Bryant —do you think has had the greatest impact, and why
*October 23, 2014*

**Math**

What is the multiplier of 3/4 and 6/8?
*October 23, 2014*

**Math**

A decimal number changed to 23.7 after it was rounded. Give a decimal number that is less than 23.7 and another that is greater than 23.7 that each round to 23.7. Explain to what place each number was rounded.
*October 23, 2014*

**AP Gov**

1. Which of the following is true about the Supreme Court? a. the justices have extended the right to privacy in all areas b. the justices ruled that the right to privacy includes gay and lesbian consensual relations c. the justices have overturned Miranda v. Arizona (1966) d...
*October 23, 2014*

**ap calc**

suppose that the position functions of 2 bugs B1 and B2 in motion along the same line are B1=1/2t^2-t+3 and B2=-1/4t^2+t+1 for t is greater than or equal to zero. a) prove the bugs will not collide b)how close do the bugs get to each other? I would greatly appreciate if you ...
*October 23, 2014*

**math**

A bottle of juice states that a serving is 1/2 cup. How many servings are in 2-pint container? ( Hint: One pint equals 2 cups?
*October 23, 2014*

**Math**

Vanessa has 3 yards of cotton. She needs 3/4 yard for each skirt she makes. How many skirts can she make?
*October 23, 2014*

**Language Arts HELP!**

Which of the following sentences contains a verb in the future perfect tense? A. Andy is going to walk home with Beth every afternoon. B. Andy has been walking home with Beth every afternoon. C. Andy will walk home with Beth everyday next week. D. By tomorrow, Andy will have ...
*October 23, 2014*

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