Tuesday
July 29, 2014

Posts by Jess


Total # Posts: 824

Precalculus
Find the exact value of sin 15°. I got square root of 2-squaroot of 3/2 is that correct?

Precalculus
120 degrees?

Precalculus
2-3cosx=5+3cosx 0 degrees is less than or equal to x less than or equal to 180 degrees Can you please show me step by step in detail. Please do not skip a step. Thanks!

Precalculus
oh i get it.... how do you know what identities to use? did you memorize them?

Precalculus
How would you solve this trig function: cos2x=sin^2-2 how do you know what trig identities to use?

Precalculus
Find cot x if sin x cot x csc x = .square root 2 After reducing i got cot= square root of 2 Am i correct?

accounting
A fleet of refrigerated delivery trucks is acquired on January 5, 2011, at a cost of $1,200,000 with an estimated useful life of eight years and an estimated salvage value of $100,000. Compute the depreciation expense for the first three years using the double-declining-balanc...

math
d/dx x(1+y)^(1/2) + y(1+x)^(1/2)=0. Can some1 show me the calculation because i didnt get like the answer. [ans=-1/(1+x)^2 but my calculation=-(sqrt(y+1) (2 sqrt(x+1) sqrt(y+1)+y)/(sqrt(x+1) (2 sqrt(x+1) sqrt(y+1)+x)]

calc 1
Find the number c that satisfies the conclusion of the Mean Value Theorem. f(x)=x/(x+2) [1,4]

physics
i dont know

government
Each British colony was governed according to a _____, a written agreement between the settlers and the Crown laying down the colony's basic rules of government.

Algebra
find the vertex, line of symmetry, and minimum or maxium values of the quadratic equation f(x)=9-x^2

calculus
an object is dropped from a tower. the distance in t seconds is given by d(t)=4.9t^2 if the height of the tower is 146.9m , how fast is an object moving when it hits the ground??

Random question
Makee the world go awayyy do your remember when you loved meee... haha

Random question
thank you very much for your help

Random question
okay :/

Random question
Just doing a statistic here...can you name some of your favorite singers? Can be old or new.. Thanks!

English
From the depths of the ocean to the peaks of the mountains? does that make sense?

English
okay thanks!

English
When in disgrace with fortune and men's eyes I all alone beweep my outcast state, And trouble deaf heaven with my bootless cries, And look upon myself, and curse my fate, Wishing me like to one more rich in hope, [5] Featured like him, like him with friends possessed, Desi...

English (poetry)
But i thought personification is when something has human or animal characteristics?

English (poetry)
thanks! and is it in the last sentence "I hear it in the deep heart's core"?

English (poetry)
I will arise and go now, and go to Innisfree, And a small cabin build there, of clay and wattles made: Nine bean-rows will I have there, a hive for the honey-bee; And live alone in the bee-loud glade. And I shall have some peace there, for peace comes dropping slow, Dropping f...

English (poetry)
Thank you! :)

English (poetry)
IV His soul stretched tight across the skies That fade behind a city block, Or trampled by insistent feet At four and five and six o’clock; And short square fingers stuffing pipes, And evening newspapers, and eyes Assured of certain certainties, The conscience of a blacke...

math
24 divided by 4/5=??? I tried but i just could not get it.

math
9 divided by 1/6=??? I tried but I just couldn't get it!

Math
Find the sum: 7/12 + 7/10 =

Algebra
okay second onee.. 5x + 2y = 6 need to make y alone on the left side..so bring everything over to the right 2y=-5x+6 divide by 2 y=-5/2x +3 put that into calculator or graph it by hand... your y intercept is already given to you which is 3

Algebra
okay so heres what i got for the first one.. Triangle has to equal 180 degrees 1st angle= 2x-2 2nd angle= x 3rd angle= x+38 add them all together and equal it to 180 degrees in the end you would get 4x+36=180 solve for the equation and x is 36 now find the measure for each ang...

English
Yes thats what i originally thought but my English teacher wrote this on my paper: If you were to need one you would write it like “Odysseus’”. When the word ends in an “s” you simply place the apostrophe after the ending “s”.

English
for the name Odysseus, if i want to add an s at the end do i have to write apostrophe before or after the s? Odysseus's family or Odysseus' family

math
convert 56.7 into degrees, minutes and seconds

math
convert 56.7 into degrees, minutes and seconds

physics
A mirror creates an image of magnification −1/3. (a) Is the image upright or inverted? (b) If the object is 7.75 cm tall, what is the height of the image? State your answer with the correct sign. answer to part B should be in cm. thanks.

us history
Passed in 1935, Roosevelt's most significant reform measure was the A. Wagner Act. B. Social Security Act. C. National Labor Relations Board. D. Fair Labor Standards Act.

History
Not true as in mind control is not a valid reason for cult conversion. Does that make more sense?

History
I was thinking maybe it could be something like this: While the effects of a cult are a matter of opinion, it is important to realize that "mind control" is more of an unclear and incorrectly named reason for cult conversion. I dont know if this makes sense or maybe ...

History
For my history class I have to do a research report about a social topic and I want to talk about cults. My teacher said to choose one and I chose Heaven's Gate. At first I was going to talk about the harmful effects of cults but after researching it, it was hard to find. ...

Math
A locker combination has three nonzero digits, and digits cannot be repeated. The first two digits are 1 and 2. What is the probability that the third digit is 3?

Math
You choose a head coach and an assistant from a group of 12 applicants. How many different groupings are possible? I know it is either 24 for a double combination of 12 - or I was thinking for number of possibilities it could be 12x11 = 132? Can anyone help me decide what is r...

social
advertise what? networking like facebook, myspace is a free way to adverstise, plus they have pay for add options. One can create their own website, is that kind of what you are asking?

algebra
I know it is either 24 for a double combination of 12 - or I was thinking for number of possibilities it could be 12x11 = 132? This is my daughters 7th grade homework, and I am stumped on helping her.

algebra
You choose a head coach and an assistant from a group of 12 applicants. How many different groupings are possible?

Chemistry
Calculate the sodium ion concentration when 70 ml of 3.M sodium carbonate is added to 30 ml of 1.M sodium bicarbonate.

Science
You have the same liquid it cannot change.

Chemistry
You forgot to enter any of your values... if you copied this from ALEKS it won't include them. You have to type them in.

chemistry
What would be the mass of a bag of anhydrous magnesium sulfate, MgSO4, if it contained the same amount of magnesium as a 1.00kg bag of Epsom salts, MgSO4 x 7H2O? Give your answer in grams. please help

chemistry
iron+sulphur together are a mixture of small grains yellow and dark grey.Its chemical symbol is 'Fe + S'.When it reacts with oxygen they create a new chemical substance; Iron Sulphide. What do you put for 'explain the reaction using the Big Idea of Energy? :S HELP xxx

physics urgent!!!
A canoe of mass 70 kg with a paddler of mass 55 kg are in a river. If the river's current exerts a force of 15 N [E] while the paddler is paddling with an average force of 22 N [N38degreesW], find the acceleration of the canoe and paddler. Use both a component and trigonom...

physics
A canoe of mass 70 kg with a paddler of mass 55 kg are in a river. If the river's current exerts a force of 15 N [E] while the paddler is paddling with an average force of 22 N [N38degreesW], find the acceleration of the canoe and paddler. Use both a component and trigono...

physics
A canoe of mass 70 kg with a paddler of mass 55 kg are in a river. If the river's current exerts a force of 15 N [E] while the paddler is paddling with an average force of 22 N [N38degreesW], find the acceleration of the canoe and paddler. Use both a component and trigonom...

Microbiology
to solidify the media in order to obtain a pure colony

english
Which element of a short story would be most important to a story about a mad scientist stealing a secret weapon?

Chemistry
I have a question which asks... What is the Oxidation number of Nitrogen in Cu(NO3)2 I know the answer is 5+ but how do you get that?? Cu= 2+ O= 2- (Theres 3 of them so -2x3=-6...then, theres a two out of the brackets so 6- x 2 =-12) +2 - (-12)= -10? And then what? I think my ...

Chemistry
I have a question which asks... What is the Oxidation number of Nitrogen in Cu(NO3)2 I know the answer is 5+ but how do you get that?? Cu= 2+ O= 2- (Theres 3 of them so -2x3=-6...then, theres a two out of the brackets so 6- x 2 =-12) +2 - (-12)= -10? And then what? I think my ...

Chemistry
I have a question which asks... What is the Oxidation number of Nitrogen in Cu(NO3)2 I know the answer is 5+ but how do you get that?? Cu= 2+ O= 2- (Theres 3 of them so -2x3=-6...then, theres a two out of the brackets so 6- x 2 =-12) +2 - (-12)= -10? And then what? I think my ...

8th grade science
what contents in magma affects a volcanos explosive?

physics
at what altitude should a satellite be placed into circular orbit so that its orbital period is 48 hours? the mass of the earth is 5.976x10^24 kg and the radius of the eatrh is 6.378x10^6 m.

physics
a 1 kg mass is attached to a spring hanging vertically and hangs at rest in the equilibrium position. the spring constant of the spring is 1 n/cm. the mass is pulled downward 2 cm and released. what is the speed of the mass when it is 1 cm above the point from which it was rel...

History
What aspects of Japanese culture were evident in samurai training?

Science
ANYONE?

Science
Sperm cells have very little cytoplasm, while egg cells have a lot of cytoplasm. How do these different structures support the different functions of eggs and sperm?

Chemistry
Can dimethylformamide be stored in plastic bottles? Or is it better to store in glass bottles?

chemisty
how many grams of magnesium sulfate are required to make 575 ml of a 1.65% (m/v) solution

History
How did Buddhism spread through Korea into Japan? Explain how Duddhism and Shinto blended together.

History
How would i word the answer though?

History
Where are China and Korea located in relationship to Japan? Why did this location allow for Japan to be influenced by many cultures at once?

Science
Does anyone have an answer?

Science
An animal has an allele for yellow eyes, but its eyes are grey. The allele for yellow eyes must be

Science
A person's height, eye color, and skin tone are all examples of?

Math
7 (x-2y) minus cubed

Math
Lisa bought two equal pieces of fabric. She will cut squares for a quilt from the fabric. All together Lisa bought 5 yards 1 foot of fabric. What is the length of each piece of fabric?

Math
I have 5 books. Each book weighs 1 kilogram 250 grams. How much is the total weight?

math
A rectangle has a perimeter of 24 and an area of 35 square feet. What is the length and width of the rectangle?

chemistry
How do you find Kc for an equilibrium problem?

Chemistry
what is an example of a substance that has both ionic &covalent bonds & where are these bonds formed.

chemistry
I keep thinking that 3 is the van't hoff factor for ammonium chloride, but I keep getting my answer wrong. Any ideas?

math
what percent of 1/4 is 2/5

Accounting ethics
I got some help to get started but the material still seems like a foreign language. Someone layed out a nice outline for me to follow, but without understanding the material I still can't get anywhere. It is how to CONDUCT a stakeholder analysis I am stuck on. The few par...

sociology
i have the same question that link doesn't help at all.

physics
During a particular thunderstorm, the electric potential difference between a cloud and the ground is Vcloud - Vground = 1.10 108 V, with the cloud being at the higher potential. What is the change in an electron's electric potential energy when the electron moves from the...

Chemistry
How many moles of HCl are present in a 50mL 3M solution of HCl?

Chemistry
How many moles of HCl are present in a 50mL 3M solution of HCl?

chemistry
if 5liters of hydrogen iodide gas is bubbled through 2 liters of 0.0275 M lead 2 nitrate solution at STP, how many grams of lead 2 iodide will precipitate out?

math
The points A (7,6) and B (2,1) are 3 units and 2 units respectively from the line L and are on the opposite sides of L. Find the coordinates of the point where the interval AB crosses the line L.

math
add

social studies
about how many peole went through ellis island?

8th grade science
when you bring your bicycle to a stop where does he kinetic energy it had go?

8th grade science
compare and contrast the effect of a catalyst on a chemical reaction with that of an inhibitor?

Chem
Determine mass of KCI created when react 35.7 g of K w/ unlimited amount of CI2

geometry
Triangle ABC has the following angle measures. Angle A = 44. Angle B = 4x. Angle C = 2x + 16. Find the measure of angle C.

Math Help in need of urgent assistance
A tower casts a 235-foot-long shadow. If the angle of elevation from the tip of the shadow to the top of the tower is 66.3°, how high is the tower? (Round your answer to one decimal place.)

high school physics static friction
The system shown below is in equilibrium. Using the fact that block A is placed on a table, has a normal force of 40.2 N and it is not moving, what is the coefficient of static friction on block A? I know you can't answer this but if you have any suggestions: Calculate the...

high school physics
I got that the acceleration is 5.6 meters per seconds sqaured because 308.7N/55kg. Therefore, the final velocity is 39.2 meters per second. IS THIS RIGHT? Thanks all for your help!

high school physics
Annie rides her snowboard down a hill sloped at 25 degrees. The coefficient of kinetic friction between her and her skies is .15. If her mass is 55 kg, hw fast is she excelerating? Assuming she starts from rest and the equation is v=v+a*t, what is her velocity after 7 seconds?...

social studies
what is a veteran?

Math
is the indefinite integral of 4x^3sinx^4dx = -cosx^4+c

Math
Identify u and du for the integral. 1. The integral of [(cosx)/(sin^(2)x)]dx 2. The integral of sec2xtan2xdx

11th grade physics
Carl puts the pedal to the metal and increases her speed as follows: 0 mi/hr at 0 seconds; 10 mi/hr at 1 second; 20 mi/hr at 2 seconds; 30 mi/hr at 3 seconds; and 40 mi/hr at 4 seconds. What is the acceleration of Car;'s car?

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