Thursday

July 24, 2014

July 24, 2014

Total # Posts: 365

**Chemistry**

A compound of chlorine and fluorine, ClFn, reacts at about 75oC with uranium metal to produce uranium hexafluoride, UF6 and chlorine monofluoride, ClF (g). A quantity of uranium produced 3.53g UF6 and 343 mL ClF at 75oC and 2.50 atm. What is the formula (n) of the compound?

**Math**

Nina walked 15 yards to Paul's house. They then went hiking. Which rule shows how many yards Nina walks for every yard Paul walks? a. p=n+15 b. n=p+15 c. P=15-n d. n=p-15

**physics**

An X-ray tube used for cancer therapy operates at 4.04 MV with a beam current of 23.4 mA striking a metal target. Calculate the power of this beam.

**algebra**

x^3+4a+5a^2x^6 ascending order

**Algebra**

7. Paula is an office manager for ABC Advertising. She has been tasked with finding a copy machine that falls within a budget of $750 per month. She finds a company that will lease the machine for $275 a month. Each copy costs 4¢ and a ream of 500 sheets of paper costs $5...

**Algebra**

1. A firm pays $1.75 for each copy of a magazine and sells each one for $2.50. There is a fixed monthly cost of $40 for printing the publication. If the firm wants to make $550 dollars next month, how many magazines do they have to sell?

**Introductory to algebra**

simplify both sides of the following equations as much as possible and the solve: 4x+2-3x=4+1

**Biology**

Could someone please explain Endocytosis(phagocytosis, pinocytosis and receptor-mediated endocytosis) in simplest way? I do not understand

**calculus**

Find the area bounded by {y=x2−4 y=4−x2 • sketch the region described • determine any intersection point(s) for the curves (show work!!) • write out the integral(s) that will calculate the area • determine the area (may use a calculator)

**chemistry Pleae**

thankyou its meant to be propyl butanoate and sodium hydroxide

**chemistry Pleae**

C7H14O2 + NaOH What will this combination make? and can it be balanced?

**chemistry**

Dr bob they will go on different carbons, sue knows this they are called isomers, do you have a list of the isomers for this compound?

**Statistics**

A researcher surveyed college students to study their opinion about the proposed change in smoking rules. The researcher asked a group of 30 students: 12 of them supported the change, 13 of them did not, and 5 had no opinion. This is not a binomial model because... A. ...the s...

**math**

Maryann rolls a 6-sided dice six times. How many ways can she roll the dice so that the sum of her numbers is 10?

**physics**

A car is being pulled out of the mud by two forces that are applied by the two ropes shown in the drawing. The dashed line in the drawing bisects the 30.0° angle. The magnitude of the force applied by each rope is 2900 newtons (N). (a) How much force would a single rope ne...

**physics**

A woman stands on a scale in a moving elevator. Her mass is 68.0 kg, and the combined mass of the elevator and scale is an additional 713 kg. Starting from rest, the elevator accelerates upward. During the acceleration, the hoisting cable applies a force of 9000 N. What does t...

**Math or business**

What will $30,000 earn after 6 yrs at 2.25%?

**calculus**

for the next 7 years how much should I set aside sp that in years 7-12 i can make $4,000.00/month payments?

**Math (Algebra)**

187. each got 3 ice creams and each (except 4 of them) recieved 1 cookie

**Math**

9:15 am. Answer could vary depending on location of Testing. For example if the class were in an airplane it is possible to start the test in one time zone and finish in another.

**Alegbra 1**

X^2-12=-11 First add 11: x^2-12+11=0 Next: (x-11)(x-1)=0 Set each equal to 0: (x-11)=0 (x-1)=0 Get x alone by adding: x=11 x=1 Answer: (11,1) Check work by plugging numbers into original equation.

**math**

30 kg -12kg=18 kg 18kg*5loads=90kgs of sand 1kg= 1000grams 90,000grams of sand

**math**

Small 1/2= .50 Medium 2/5= .40 That means large is .10 10% of the shirts = 5 shirts 5 is 10% of 50. There are a total of 50 shirts.

**mathematics**

30

**Algebra**

4.534 secs. not 100% sure

**Biology**

Question 3 I Think the answer is actually d- slow and fast twitch. Reference Hoefnagels "Biology concepts and investigations" page 595 28.6 B. Muscles contain slow and fast twitch fibers.

**jardan high. general science**

water,anchorge,photosynthesis,mineral,food,support. The main functions of roots are { } and taking in { } and { }. The stems { } the other parts of the plant and transport { },{ } and around the plant.the leaves are the main part making { } by { }.

**Physics**

A physics teacher (mass = 84.5 kg) is jogging through the woods and runs straight into a large oak tree at 3.5 m/s. Rebound speed is measured at 2.3 m/s in the opposite direction. If the time of contact with the tree is 45 milliseconds, what is the magnitude of the force that ...

**Geometric Sequence**

The product of the first five terms of a geometric progression is 32. If the fourth term is 17, compute the second term.

**math**

The product of the first five terms of a geometric progression is 32. If the fourth term is 17, compute the second term.

**Maths B**

Andrew got 68 for both English and Maths. The mean for english was 52 and the mean for Maths was 55. The standard deviations were 10 and 8 respectively. Determine the subject in which andrew did better

**Math**

what is arccot 3.107 equals to in rad?

**Algebra II**

A line has a slope of 2 and contains the points (1, 3) and (2, y). The value of y is what? Please explain in detail

**Geometry**

Picture given with problem: media.glynlyon(dot)com/g_geo_2012/12/img_geou12abc_8.gif If AC = 20, AE = 25, and AB = 5, what is the length of AD? Please explain how this is found, I've got a few problems like this and have no idea how to do it.

**Consumer Math**

Thank you, I was just having some trouble deciding how to do it.

**Consumer Math**

Compute the square footage of carpet needed to cover a room 12' 3" x 18' 4".

**chemistry **

Copper can be determined gravimetrically by precipitation as copper(I)thiocyanate, CuSCN. A wrought aluminum-copper sample(4.5167 g) was dissolved in a minimum amount of concentrated HCl followd by the additon of 25 ml of sulfurous acid to reduced the copper. This solution was...

**Chemistry**

The determination of 4.000 mmol of ZnCl2 is performed gravimetrically by the addition of NaCN solution in a Total volume of 200.00ml. Ksp = 3.0X10^-16 for Zn(CN)2. State and verify all assumption. Assume cyanide does not hydrolyze. a. Derive the COC and COM equations for the s...

**PLEASE HELP-CHEMISTRY**

A cyclopropane-oxygen mixture is used as an anesthetic. If the partial pressure of cyclopropane in the mixture is 334 mmHg and the partial pressure of the oxygen is 1.02 atm, what is the total pressure of the mixture in torr? ?

**CHEMISTRY HELP NOW**

A balloon at a pressure of 755 torr and a volume of 5.00 L was allowed to rise in the atmosphere to a point at which the pressure inside and outside the balloon was 697 torr. What was the volume of the balloon at that altitude, assuming the temperature was constant?

**Math**

Jean surveyed 25% of all eighth graders and 75% of all 7th graders. John surveyed 50% of all eighth graders and 50% of all 7th graders at the same school. Jean surveyed a total of 152 John surveyed a total of 144 What is the number of eighth graders?

**Math **

what is the equation for the perpendicular bisector of the line segment whose endpoints are (-7,2) (-1,-6)

**Math **

what is the equation for the perpendicular bisector of the line segment whose endpoints are (-7,2) (-1,-6)

**Math **

what is the equation for the perpendicular bisector of the line segment whose endpoints are (-7,2) (-1,-6)

**Business Math Question**

You borrow $2,600 and repay the loan in 12 monthly installments of $232. What was the finance charge per $100 of the amount financed?

**Business Math Question**

Finance charge of $2.50 per $100 for 3 payments.

**Business Math Question**

Find the finance charge per $100 on a loan of $12,600 with a finance charge of $1,638.

**College Chemistry**

Using the molar volume (STP) or the ideal gas law equation, determine the molar mass,g/mole, of each of the following. A: 11.2g of a gas that has a volume of 1.50Lat STP? B: .0710g of a gas that has a volume 825ml at 1 atm

**College Chemistry**

A 14.0 g sample of Krypton has a temperature of 25C at 625mm Hg. What is the volume, in Milliliters, of the krypton?

**economics**

which of the following statements about inflation are true? check all that applies a) policy makers also worry about a negative inflation rate, or deflation b) painful government actions may sometimes be necessary to bring down a high inflation rate. c) A moderately high infla...

**Calculus**

Nevermind, I got it! I forgot that I could divide everything by the highest power x in the denominator.

**Calculus**

I'm supposed to find the limit as x approaches infinity of (2-x-sinx)/(x+cosx). I've thought about using the squeeze theorem, but I'm not sure it applies here. Can someone point me in the right direction? Thanks.

**Math**

No Idea, the question completely asks that. I was thinking about 12% annually compounded, but the answer I got was wrong due to Solve and Check.

**Math**

How much must you deposit in an account that pays 6% semi-annual interest, compounded annually, to have a balance of $9000 in 15 years? I'm stuck with this question, please explain the steps for the answer.

**Math**

How much must you deposit in an account that pays 6% semi-annual interest, compounded annually, to have a balance of $9000 in 15 years?

**statistics**

Can a percentile have the VALUE of 517? Can a percnetile have the VALUE -5.8? Can a percentile have the RANK 517? Can a percnetile have the RANK -5.8?

**statistics**

is it likely to arrive at a correct research conclusion after making an incorrect statistical conclusion?

**reading**

EVERYBODYS ANSWER IS DIFFERENT!!! -.-

**English **

What is the verb in "where are my shoes"

**computer**

can someone explain this statement please int a=(int *)new int[4][3];

**CRITICAL THINKING**

Please post a substantive response to the following discussion questions by clicking on Reply: Aristotle developed a theory of persuasion by which there are three ways a speaker can persuade an audience. Ethos is the idea that an audience can be persuaded by a speaker's p...

**Essay**

i agree where is the answer

**Math**

A buyer is paying a reduced $500 in closing costs on a home with a sale price of $95,000 in the state of Bath, Maine. If the buyer obtains an FHA loan, what would be the monthly payment if the loan is at 9 percent for 10 years?

**math**

Divide 7/24 by 35/48 and reduce the quotient to the lowest fraction. A. 245/1152 B. 4/10 C. 2/5 D. 42/48

**physics**

A person exerts a horizontal force of F = 174 N in the test apparatus shown in the drawing. (h = 0.33 m.) Find the horizontal force M that his flexor muscle exerts on his forearm.

**calculus**

that has to do with trig substitution i believe..

**calculus**

evaluate the ∫from square root of 2 to 2 1/x^3square root of x^2-1 dx 1/24(-6+3 square root of 3 + pi) but i got something different

**Math**

29 * 6^(-3x) = 13 Thanks!

**accounting URGENT HELP DUE IN 1HR**

(a) Fill in the missing amounts. (If answer is zero, please enter 0. Do not leave any fields blank.) Account Titles Trial Balance Adjusted Trial Balance Dr. Cr. Dr. Cr. Accounts Receivable 34,000 Prepaid Insurance 26,000 20,000 Supplies 7,000 Accumulated Depreciation 12,000 Sa...

**physics**

A CD has a mass of 17.4 g and a radius of 6.01 cm. When inserted into a player, the CD starts from rest and accelerates to an angular velocity of 20.0 rad/s in 0.901 s. Assuming the CD is a uniform solid disk, determine the net torque acting on it.

**physics**

A CD has a mass of 17.4 g and a radius of 6.01 cm. When inserted into a player, the CD starts from rest and accelerates to an angular velocity of 20.0 rad/s in 0.901 s. Assuming the CD is a uniform solid disk, determine the net torque acting on it.

**physics**

A pulsar is a rapidly rotating neutron star that continuously emits a beam of radio waves in a searchlight manner. Each time the pulsar makes one revolution, the rotating beam sweeps across the earth, and the earth receives a pulse of radio waves. For one particular pulsar, th...

**Grammer- Capitaliation**

Assistant dean Shirin Ahmadi recommended offering more language courses. We went to the mark taper forum to see a production of angels in america. Lydia's aunt and uncle make modular houses as beautiful as modernist works of art We amused ourselves on the long flight by di...

**COLLEGE CALCULUS. HELP!**

Damon is right, I forgot to apply the chain rule.

**COLLEGE CALCULUS. HELP!**

1. 1 turns to 0 2x turns to 2 x^3 turns to 3x^2 (bring 3 up front & subtract 1 from exponent) ^1/4 goes up front and subtract 1 from that =-3/4 Final answer would be 1/4(3x^2+2)^-3/4 2. Use same procedure 1/3 (sec^2t) ^ -2/3

**accounting**

Jack Shellenkamp owns and manages a computer repair service, which had the following trial balance on December 31, 2011 (the end of its fiscal year). BYTE REPAIR SERVICE Trial Balance December 31, 2010 Cash $8,000 Accounts Receivable 15,000 Parts Inventory 13,000 Prepaid Rent ...

**math**

It'll be 2z=24 divide both side by 2 z=12

**Chem**

Calculate the volume of .300 M NaOH needed to prepare a pH=3.50 buffer with 250ml of .075M HF solution. pKa (HF) = 3.15

**physics**

Waves on a particular string travel with a speed of 17 m/s. By what factor should the tension in this string be changed to produce waves with a speed of 102 m/s

**Chemistry 2**

How many cans ( each containing 14.0 oz of propane) would be required to convert 41.7 lbs of ice at -15.0 C to water at 100 C ( the boiling point at standard pressure)

**Trigonometry**

The tires on a car have radius 14 inches. Find the angular speed of the car tire in revolutions per second when it is traveling 70 mph. Find the angular speed at 80 mph. The tires on a car are 15 inches. Find the linear speed of the car when the tires are rotating at 900 revol...

**Geometry**

Y is the midpoint of segment XZ. If XZ is 64 units long, how long is

**Physics**

Ok Here are my answers, if you can give me any more help it would be greatly appreciated. 1. 1000+1200=2200 2. Fw = ma 1000*9.8 m/s^2 = 9800 1200*9.8 m/s^2 = 11760 Fw = 21,560 3. Momentum = mv 1000*7 + 1200*6 7000 + 7200 Momentum = 14,200 kg m/s 4. 14,200 / m1+m2 14,200 / 1000...

**Physics**

Sorry, I can do part 1 and 2 relatively easily. However, I suck at physics and was honestly hoping to receive an answer like the one you gave me. I just wanted to know how to do it, not necessarily get the answer. Thanks

**Physics**

A 1000 kg car is moving at a constant speed of 7 m/s when it hits the back bumper of another car with 1200 kg of mass moving in the same direction at a constant speed of 6 m/s. As a result of the collision both bumpers get coupled. Show all work and calculations. 1. What is th...

**Economics**

Supply is Demand is Scenario A elastic elastic Scenario B elastic inelastic Scenario C inelastic elastic Scenario D inelastic inelastic Which scenario describes the market for oil in the long run? A. A B. B C. C D. D

**Economics**

Sandra purchases 5 pounds of coffee and 10 gallons of milk per month when the price of coffee is $10 per pound. She purchases 6 pounds of coffee and 12 gallons of milk per month when the price of coffee is $8 per pound. Sandraâ€™s cross-price elasticity of dema...

**Economics**

Which of the following would not interfere with market equilibria? A. a minimum wage B. a rent control C. a non-binding price floor D. a binding price ceiling

**Economics**

The price received by sellers in a market will decrease if the government Answer A. imposes a binding price floor in that market. B. decreases a binding price ceiling in that market. C. decreases a tax on the good sold in that market. D. increases a binding price floor in that...

**Economics**

Suppose the government has imposed a price floor on the market for soybeans. Which of the following events could transform the price floor from one that is not binding into one that is binding? A. Farmers use improved, draught-resistant seeds, which lowers the cost of growing ...

**Math**

Also, there is a smaller similar triangle with the sides of 5, 6, and 9. This is sted in the problem.

**Math**

The perimeter of a triangle is 50. What steps do I need to take to find the length of the sides?

**Russian**

russian farmland has been damaged by

**High School **

based on my school they look at the star tests from 7th grade because when you go to 9th grade the star test scores wont be out by then

**Algebra**

How do i find the slope and y- intercept of 5X+2Y=7 ?

**physics**

A mass of 0.04 kg is attached to a cord passing through a small hole in a frictionless, horizontal surface. The mass is initially orbiting with speed 4.9 m/s in a circle of radius 0.4 m. The cord is then slowly pulled from below, decreasing the radius of the circle to r2 = 0.0...

**Math**

julia needs to purchase a ladder that just reaches the top of a 16 foot building. if the bottom of the ladder will be placed 12 feet from the base of the building how long should julia's ladder be?

**Physical Science**

3.B

**MAth (make equation true)**

PLease help 5 + 4 x 3 - 1 = 18 use grouping symbols to make each equation true.

**science**

how long does it take to dissolve 3 ice cubes in a glass of water