Wednesday

April 16, 2014

April 16, 2014

Total # Posts: 346

**Chem**

How many moles of copper are in21,000g

**Chem**

How many moles of oxygen are in Na2Cr2O7

**math**

you have 3 packages of wrapping paper, 12 bows, and 3 ribbons. How many different packages can you wrap?

**math**

you have 3 packages of wrapping paper, 12 bows, and 3 ribbons. How many different packages can you wrap?

**1033 Int Algebra**

Simplify by using the order of operations 4(5-6)^2 +9^2

**probability & statistics**

Find the slope and the y-intercept for the line that passes through (-9,5) (11,12)

**Intro to computers**

A user calls your help desk to report that the files on her USB stick do not have any permissions associated with them and therefore aren't secure. Why is this? A The USB stick is formatted with FAT 32 b The USB stick is formatted with FAT 64 c The USB stick is formatted w...

**Chemistry**

874.2 pm pH=4.21

**physics/algebra**

f=1.26x10^5 N

**physics/algebra**

A 74.0kN kN spaceship comes in for a vertical landing. From an initial speed of 1.00 km/s {\rm km/s}, it comes to rest in 2.40min min with uniform acceleration. What braking force must its rockets provide? Ignore air resistance.

**physics/alegbra**

it's a downward triangle with 60 degrees on side b and side c at the tip is box 1 w1 and attached to that is box 2w a is in between box 1 and box 2

**physics/alegbra**

Find the tension in cable A A if w 1 w_1 = 54.0N N and w 2 w_2 = 120N in a downward triangle 60degress on (both sides of angel and at the end of the triangle is w1 a and then w2) how would I solve this equation I don't have a glue where to start. Your help is appreciated.

**physics**

A tennis player kits a ball at ground level giving it initial velocity of 22.0 m/s at 58 degrees above the horizontal. Any help would be appreciated. Thanks.

**physics**

major leaguer hits a baseball so that it leaves the bat at a speed of 29.0m/s and the angles of 36.9 above horizontal ignore resistance what two time is the baseball at a height of 10.0m above the point at which it left the bat? *what two times is the baseball at a height of 1...

**algebra**

(4A+8) divide by 2=

**physics**

A curving freeway exit has a radius of 50.5m m and a posted speed limit of 35 mi/h \rm mi/h. What is the radical acceleration (in m/s^2) if you take the exit as posted speed express answer to two significant figures and appropriate units. Thanks for any help.

**physics**

a dog runs from point a to b to c in 4.00s. find the dog's average velocity over this 4.00 second interval find the dog's average speed over this 4.00s intervals I can't remember the formula off hand. Thanks for your help in advance.

**physics**

in 1954 roger bannister became the first human to run a mile in less than 4 minutes. suppose that a runner on a straight track covers a distance of 1.00 mi in exactly 4.00 min. What is the average speed in mi/h What is his average speed in ft/s what is his average speed in m/s...

**Chemitry**

molecular formula of lithium carbonate is LiCO.What is the molecular weight of the drug? a. 100.88 b. 73.88 c.48 d. 6.94

**Math**

You bought one $2 chance on an $84 radio. Sixty chances were sold. Was buying a chance a "good deal"?

**Anonymous**

In the revised monograph, this combined section details the most clinically significant safety concerns that affects decisions about whether to prescribe the drug. A. Warnings and Precautions B. How supplied/storage and handling C. Dosage and administration D. Indications and ...

**Chem**

Ka1 = 4.5E-7 and Ka2 = 4.7E-11 for the carbonate system. Ksp is 5.0E-9 and Kw =1.0E-14. A town’s groundwater has [Ca2+] = 37 mg/L, alkalinity of 1.36E-3eq/L and pH of 8. This is to be mixed with surface water with [Ca2+] = 4mg/L, alkalinity of 8.0E-4 eq/L and pH of 9.5. A...

**earth science**

If a sample contains 50g of carbon14 and 50g nitrogen14 how many half lives has it undergone?

**math**

if the unicycle with the largest wheel of 185 cm is ridden 1 km how many complete rotations will the wheel make

**Statistics**

A random sample of 10 independent observations from a normally distributed population yielded the following values 51, 53, 49, 43, 47, 46, 45, 30, 60, 52. a) Estimate the standard deviation of the sampling distribution of means for samples like this one. b) Using á = .0...

**algebra(help)**

2000 tickets were sold for a play generating 19,700. The prices of the tickets were $5 for children, $10 for students and $12 for adults. There were 100 more adult tickets sold than students. Find the number of each type ticket sold. Find the number of each type sold. Thanks f...

**algebra word problem**

Not exactly sure how to solve this. 2000 tickets were sold for a play generating $19,700. The price for tickets $5 for children, $10.00 for students and $12.00 for adults. There were 100 more adult tickets sold than students. Find the number of each type of ticket sold. Thanks...

**college algebra**

Solve the logarithmic equation. Log x +log2x = 4 Wouldn't this be no solution because log x is undefined?

**algebra-word problem**

2001-2005 number hours user spent on the internet each week increased 110% by hours. This percent increased amount to 11 hours. Find the average number of hours that a user spent on the internet in each week in 2001 and 2005. Having problems with setting it up.

**college algebra**

I need to expand the expression without exponents. We haven't covered this yet so I am confused on how to do both of them Log x4y7/4 4 log x^8/√yz^5 4 Thanks, for your help.

**college algebra**

Write expression as one logarithm and simplify if appropriate. log 3√x + log x^4 - log x^3 4 log (x+3) - 5 log (x^2+4) + 1/3 log y I have these who problems but I don't know where to start. HELP Please.

**algebra**

Write expression as one logarithm and simplify if appropriate. log 3√x+log x^4-log x^3 Need help solving we haven't really gone over this yet.

**Algebra**

Expand the expression without exponents log4 x^4y^7/4 how do I start solving this equation? Thanks, for your help.

**math**

4.2%of8,343

**math - grade 7**

determine the diameter of a circle with a radius of 4.26m. determine the area of the circle with diameter is 8mm.

**trig**

An aircraft maintains a speed of 500 miles per hour in a southwestern direction. The velocity of the jet stream is constant 50 miles per hour from the west. Find the resultant vector, the speed, and actual direction of the aircraft.

**Ethical Dilemmas/Criminal Justice**

Which of the following is an example of a value? a. It is raining b. Rain is good c. He is a liar d. He is a criminal I think the answer is A

**Ethical Dilemmas/Criminal Justice**

Which statement is NOT consistent with Ethical Formalism? a. Moral law is self-imposed b. Moral actions are determined by reason c. lying is never justified d. individuals cannot control the consequences of their decisions. I believe it is D

**Chemistry-Just checking my answer**

For each template DNA, I prepared a second PCR reaction that includes "GMO" primers. Assume that all three foods had usable plant DNA. Which template DNA (non-GMO,GMO,test food) would you expect to show successful amplification of the "GMO" target sequence?...

**Chemistry-Just checking my answer**

for template DNA (non-GMO,GMO,and test food) we set up a PCR reaction that included "plant' primers. Assume that all three foods had usable plant DNA. Which template DNA (non-GMO,GMO, test food) would you expect to show successful amplification of the "plant"...

**Algebra/Biology**

y=2.12x + 0.004 and Protein A treated w/Bradford Reagent and has an A595 of 0.53. Can you please explain how to calculate this problem so I know in the future? Thanks for your help.

**Chemistry**

y=2.12x + 0.004 and Protein A treated w/Bradford Reagent and has an A595 of 0.53. Can you please explain how to calculate this problem so I know in the future? Thanks for your help.

**Chemistry**

y=2.12x + 0.004 and Protein A treated w/Bradford Reagent and has an A595 of 0.53. Can you please explain how to calculate this problem so I know in the future? Thanks for your help.

**Chemistry**

a student uses the unduiluted glucose stock solution in a reaction and finds that the absorbance values over 90 seceonds are all 1.900. What does this result tell you abou the enzyme activity of glucose oxidase in this reaction after the 90 seconds time point? Would it be beca...

**English**

The speaker in the poem from Auden’s “The Ten Songs” is trying to flee from? police. Hitler. memories. floods.

**English**

How does Dante feel about the journey he’s about to take with Virgil? worse than before he talked with Virgil better now that he’s talked with Virgil unsure excited

**english**

In “First Confession”, the author adds to the interest of the story by using? European Idioms. common phrases. short, highlighted sentences. Irish dialect.

**english**

In “First Confession”, the author adds to the interest of the story by using? European idioms. common phrases. short, highlighted sentences. Irish dialect.

**english**

How does Dante feel about the journey he’s about to take with Virgil? worse than before he talked with Virgil better now that he’s talked with Virgil unsure excited

**english**

Thanks anyhow...

**english**

I think it is B...Hitler but memories is a thought also

**english**

The speaker in the poem from Auden’s “The Ten Songs” is trying to flee from? police. Hitler. memories. floods.

**English**

Thank you - I read where he only writes about birth, sex and death so I thought that from the beginning

**English**

I believe it is death...but I am concerned the correct answer is quitting because of how it is worded

**English**

In “Do Not Go Gentle into That Good Night,” Dylan Thomas urged his father to resist? aging. despair. quitting. death.

**english**

Thank You Ms. Sue...I appreciate your time.

**english**

Infinite...

**english**

sorry it is...to win

**english**

Henry’s desire to win is obvious. Is it a: gerund infinitive prepositional participial

**english**

Thank you so much - I asked someone else and they said it was a dangling modifier...I disagreed

**english**

Josie’s project was a failure, having not prepared properly. Is it a: misplaced modifier dangling modifier correct

**Math**

How to change percent to fraction. 75%=

**physics**

why one cannot find the north pole of the earth using only a simple compass

**precalc graph**

If it says to identify 5 critical points what would that be?

**precalc**

how to graph y=5sin[3[2-pi/6]]+2

**Help with English sentence pattern **

follows these rules: begins with a relative pronoun, follows any noun, restrictive noun follows common noun, non restrictive follows proper noun commas are not supposed to be used(i guess this is supposed to be sentence pattern 15??) here's the sentence: Mrs. Meger dislike...

**english**

sentence pattern - Hybrids produce less pollution than conventional cars?

**English**

sentence pattern- Traditional gas-powered cars are harmful to the environment?

**English**

my choices are S-V-O...S-V-IO...S-V-N or S-V-A....I appreciate your help

**English**

Is it a hybrid car? I need the sentence pattern

**math**

oh thank you so much have a good day

**math**

parent needs answer 48 divided by 2(9+3)=? I got 2 my son got 288 need correct answer thanks

**college chemistry**

Rank from highest to lowest vapor pressure.CH3CH2CH2CH2OH,CH4,CH3CHCH2CH3CH3,CH3CH2CH2CH2CH3

**college economics**

how to weigh marginal cost and marginal benefits when using examples of recent decisions in your life.

**Algebra**

Find the number of decibels for the power of the sound. Round to the nearest decibel. A rock concert, 5.3 10-6 watts/cm2

**math**

Solve each system graphically. Be sure to check your solution. If a system has an infinite number of solutions, use set−builder notation to write the solution set. If a system has no solution, state this. 6x – 2y = 2, 9x – 3y = 1

**math**

use the distributed property to rewrite (a+9)6= simply your answer

**math**

16.9%

**math**

calculate the average percent 1970 1980 1990 2000 17.2 17.3 17.1 16.6 do you add them all together then divide by 4

**math**

yes sorry never done this before

**math**

simplify the expression 0.5x+0.4x-0.1x= after ea. x squared 3

**algerbra**

translate the phrase into a mathematical expression and then simplify. nine times a number subtract twice the same number

**physics**

A 1-kg mass (the blue mass) is connected to a 9-kg mass (the green mass) by a massless rod 70 cm long, as shown in the figure. A hole is then drilled in the rod 40.2 cm away from the 1-kg mass, and the rod and masses are free to rotate about this pivot point, P. Calculate the ...

**College Chem 2 **

calculate the solunility of silver chromate, Ag2CrO4, in 0.005 M NA2CrO4- Ksp=2.6x10-12 Please help.....

**Psychology**

The means of travel within and between neurons is different becuase: a. eletrial signals move impulses within the neuron, while chemical signals move the impulses between neurons. b. chemical signals move the impulses within the neuron, while electrical signals move impulses b...

**algebra**

48 divided by 2(9+3)= parent needs answer.... i came up up with answer of 2 son has different answer of 288

** ece literacy**

please help I just can't find the answer to this question. Words are: A)convenient communication shortcuts B)not arbitrary symbols C)unique to each individual in english D) thoughts written down I really cant decide which is correct. the definition of words does not help p...

**ece**

It is likely that a preschooler who learns to read early: A) will watch a lot of tv B) will enjoy playing outdoors as do other children C) will watch less tv than other children D)will enjoy playing outdoors as do other children and will watch less tv than other children I cho...

**Chemistry**

What is the mass of a solution that has a volume of 0.100L and a density of 1.07g/ml. Find in grams and In kilograms.

**ece**

words are: A)convenient communication shortcuts B)not arbitrary symbols C)unique to each individual in english D)thoughts written down I chose b is this correct

**ece**

d because they talk to themselves to accomplish the task at hand. is this the correct answer

**ece**

preschoolers use private speech: a)to influence others b)to keep some of their ideas a secret c)because it is more efficient d) because it enables them to communicate new ideas

**ece**

"Let me in", said the pin. this is an example of: a. assonance b. a metaphor c. alliteration d. personification I choose d

**ece**

let me in said the pin is an example of? A. assonance b. metaphor c. alliteration d. personification i choose d is this correct

**ece**

ty and yes thats the way thank you for your advice

**Psychology**

Survey results may be inaccurate due to: a. participants who do not tell the truth b. the bias of respondents c. the use of a representative sample d. failure of most statistical procedures in analyzing the results of surveys I believe the answer is A, not sure

**Psychology**

A theory can be defined as: a. an attempt to test behavior and thought process b. an accurate description of problem-solving behavior c. the basis for relationships among facts and principles d. the application of the scientific method through statistics I believe the answer i...

**Precalculus**

Find the bounds on the real zeros of the following function. Please show all of your work.f(x)=x^4+2x^3-x^2-1

**Precal**

1. Determine whether -9x+11y^3-3=-7x^2 defines y as a function of x. Please show all of your work. (Points : 5)

**Algebra 1**

Please...I really need help with this story problem. HELP! Marks pet needs to eat at least 18 grams of fiber but less than 25 grams of protein each day. Mark gives his dog Food A and Food B throughout the day. Food A has 2 grams of fiber and 3 grams of protein in each serving....