Monday

December 22, 2014

December 22, 2014

Total # Posts: 75,771

**inequality**

Jim uses office scanner to scan pages at rate of $.09 per page. He decides to rent a scanner for$70 a year. The cost of scanning using the rental is $.02 per page. Need inequality that can be used to calculate the number of pages that he should scan in a year so that the ...
*November 1, 2014*

**chemistry**

magnesium metal (1.00 mol) and a volume of aqueous hydrochloric acid that contains .500 mol of HCL are combined and react to completion. how many liters of hydrogen gas, measured at STP, are produced? Mg(s) + 2HCL(aq) -> MgCl2(aq) + H2(g)
*November 1, 2014*

**psychology**

Edwina is worried, anxious, and sure that something terrible is going to happen to her. She’s not sure what it would be, but she “just knows.” The feeling occurs on almost a daily basis and frequently keeps her awake at night. In addition, for the last few weeks...
*November 1, 2014*

**HISTORY**

In the mid-nineteenth century new waves of immigrants came to the United States, most of them from ___ and ___. Northern & Western Europe?
*November 1, 2014*

**Math**

Jane grows several varieties of plants in a rectangular-shaped garden. She uses fencing to divide the garden into 16 squares that are each 1 m by 1 m. She also puts fencing around the perimeter of the garden. What should the dimensions of the garden be so that Jane uses the ...
*November 1, 2014*

**history**

Check my answers? True/False South Carolina was allowed by Congress to nullify federal tariffs which hurt their economy. False, the Senate came up with a Compromise where federal tariffs would be reduced for SC. One of the most dependable & profitable sources of income for the...
*November 1, 2014*

**AP Calc. AB**

There is no inverse for this function.
*November 1, 2014*

**Math**

There h horizontal lines and v vertical lines drawn in a plane. There are r ways to choose four lines such that a rectangular region is enclosed. Given that r is divisible by 1001. Find the minimum value of h+v. I am really not sure where to start.
*November 1, 2014*

**Math**

Can you turn this into a calculus max/min problem?
*November 1, 2014*

**Math**

Jane grows several varieties of plants in a rectangular-shaped garden. She uses fencing to divide the garden into 16 squares that are each 1 m by 1 m. She also puts fencing around the perimeter of the garden. What should the dimensions of the garden be so that Jane uses the ...
*November 1, 2014*

**College Intermediate Algebra**

(x-3)^2 + [10x-30] +24
*November 1, 2014*

**college algebra**

(x-3)^2+10x-30+24
*November 1, 2014*

**algebra**

factor (x-3)^2 +10(x-30)+24
*November 1, 2014*

**Intermediate Algebra**

factor (x-3)^2 +10(x-30)+24
*November 1, 2014*

**physics**

A dart is thrown horizontally toward X at 30 m/s as shown. It hits Y 0.29 s later. The distance XY in centimeters is:
*November 1, 2014*

**Calculus**

The blood alcohol concentration after a drink has been consumed can be modelled by c(t)=(0.02t)e^(−0.05t) where t is the time in minutes elapsed after the consumption of the drink and c(t) is the concentration in mg/mL at t. At what time in the first hour after consuming...
*November 1, 2014*

**MATH: Need help please**

i got my L(x) = x-1 but for some reason i can't seem to get the second part of the answer with ln 1.12 approximation
*November 1, 2014*

**MATH: Need help please **

Find the linear approximation of f(x)=\ln x at x=1 and use it to estimate ln 1.12. L(x)= . ln 1.12 approx
*November 1, 2014*

**Math**

If fencing cost $7 per foot find the total cost of fencing a rectangular garden 36ft by by 12ft
*November 1, 2014*

**Math**

A plane leaves an airport X, 20.6degrees east and 36.8 north degrees and flies due south along the same longitude for 8 hours at the rate of 1000km/h to another airport Y, 20.6degrees east and tita degree south. The plane then flies west to another airport Z for 8hours at the ...
*November 1, 2014*

**Physic**

Wo = 0.5rev/s Wf = 0.25rev/s t = 11s Revolution = ? a) Acceleration = 0.5rev/s / 11s Acceleration = -0.045rad/s² Θ = Wot + 1/2(-a)t Θ = 0.5rev/s(11s) - 1/2(0.045rad/s²)(11²) Θ = 2.75rev <-- Answer b) Average speed = (0.5rev/s + 0.25rev/s) / 2 ...
*November 1, 2014*

**Physic**

A ceiling fan is rotating at 0.50 rev/s. When turned off, it slows uniformly to a stop in 11 s. (a) How many revolutions does it make in this time? (b) Using the result from part (a), find the number of revolutions the fan must make for its speed to decrease from 0.50 rev/s to...
*November 1, 2014*

**physics**

The car stationary in front of a red traffic light. As the light turns green , a truck goes past at a constant velocity of 1.5 m/s. At the same moment , the car begins to accelerate at 1.25 m/s 2 . When it reaches 2.5 m/s the car continues at this velocity . When does the car ...
*October 31, 2014*

**Math**

A “gazing ball” is a spherical garden ornament with a mirrored surface that reflects its surroundings. The surface area of the ball is approximately 314 square inches. What is its volume to the nearest cubic inch?
*October 31, 2014*

**physics**

25 s / 0.38 km
*October 31, 2014*

**physics**

The drawing shows two transverse waves traveling on two strings. The linear density of each string is 0.0483 kg/m, and the tension is provided by a 15.0-N block that is hanging from the string. Determine the speed of the wave in part (a) and part (b) of the drawing.
*October 31, 2014*

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

oh okai thanks!!!
*October 31, 2014*

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

i know how to divide polynomials using long division and also the synthetic way. But, I just don't understand what the question is trying to ask??
*October 31, 2014*

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

Help me please Is the given linear expression a factor of the polynomial? Show work. f(x)=2x^3+x^2-5x+2; x+2
*October 31, 2014*

**chemistry**

A 813. mL sample of argon gas at 452. K is cooled at constant pressure until the volume becomes 356. mL. What is the new gas temperature in Kelvin?
*October 31, 2014*

**French**

I thought it would be that way, but this website made me change it to what I have: french.about . com/od/mistakes/a/ilnyapasdupain.htm
*October 31, 2014*

**French**

Please check these sentences for grammar. 1. Ils aiment (or aiment bien) aller à l’école. 2. Tu n'adores pas lire de les romans. 3. Ils n'aiment pas manger de les chocolats.
*October 31, 2014*

**Physics **

700 kg plane is traveling at 90 m/s at altitude of 1500 m what is planes total mechanical energy
*October 31, 2014*

**Physics**

An object of mass 2.5 kg has speed of 15 m/s when height is 5m above ground what is speed when 12 m above ground?
*October 31, 2014*

**Physics**

A 3m long weightless beam is supported at each end by cables (a scaffold). A painter weighing 900N stands 1m from the left cable. Calculate the tension (force) in each cable. I really don't understand this question.
*October 31, 2014*

**Physics**

A 700 kg plane is traveling at 90 m/s at an altitude of 1500 m. What is the total mechanical energy?
*October 31, 2014*

**government**

Donna Edwards What are his/her opponents saying about him? Describe at least 2 charges or accusations
*October 31, 2014*

**Chemistry**

Calculate the kinetic energy of the photoelectron emitted by a metal (threshold energy is 1.50 x 10^-19J) exposed to light of wavelength 5.00 x 10^-7 m (the energy beyond that required to knock electron goes into electron kinetic energy). A) -3/98 x 10^-19J B) 3.98 x 10^-19J C...
*October 31, 2014*

**Chemistry**

What's the Tfinal - Tinitial? i tried (0 - (-11.9)) but I don't think its the right thing.
*October 31, 2014*

**Chemistry**

We have of ice at -11.9°C and it is ultimately completely converted to liquid at 9.9°C. For ice, use a specific heat (Cs) of 2.01 J/gK, for liquid water use a specific heat of 4.18 J/gK, and ΔHfusion = 6.01kJ/mole, Molar mass H20 = 18.01g/mol. If 1 mole of ice at...
*October 31, 2014*

**Social Studies**

Thank you
*October 31, 2014*

**Algebra 1B**

Thank you
*October 31, 2014*

**Algebra 1B**

A box shaped like a rectangular prism has a height of 17 in and a volume of 2,720 in³ The length is 4 inches greater than twice the width. What is the width of the box? –10 in 8 in (my answer???) 20 in 40 in *
*October 31, 2014*

**algbra**

a paddle boat can move at a speed of 14 km/h in still water. the boat is paddled 16 km downstream in a river in the same time it takes to go 8km upstream. what is the speed of the river?
*October 31, 2014*

**maths**

1/(x+2)(x+3)_1/(x_4)(x_5)
*October 31, 2014*

**music**

he is installing lights in his 15 feet by 24 feet garden. the lights need to be place 3 feet apart a long the perimeter. how many lights he needs for his garden?
*October 31, 2014*

**Social Studies**

when did christianity begin? 33 C.E. ?
*October 31, 2014*

**algebra 2**

A 16-inch candle is lit and burns at a constant rate. After 30 minutes, the candle is 12 inches tall. Which linear equation models the relationship between h, the height of the candle in inches, and t, the time in hours that it has burned?
*October 31, 2014*

**FINANCE**

12. Bond Quotes Consider the following bond quote: a municipal bond quoted at 101.25. If the municipal bond has a par value of $5,000, what is the price of the bond in dollars?
*October 31, 2014*

**FINANCE**

10. Bond prices and interest rate An 8 percent coupon bond with 15 years to maturity is priced to offer a 9 percent yield to maturity. You believe that in one year, the yield to maturity will be 6.5 percent. What is the change in price the bond will experience in dollars? (...
*October 31, 2014*

**FINANCE**

8. Suppose that the current one-year rate (one-year spot rate) and expected one-year T-bill rates over the following three years (i.e., years 2, 3, and 4, respectively) are as follows: 1R1 = 5 percent, E(2r1) = 6 percent, E(3r1) = 7.5 percent E(4r1) = 6.85 percent Using the ...
*October 31, 2014*

**FINANCE**

4. Liquidity Premium Hypothesis Suppose we observe the following rates: 1R1 = 8 percent, 1R2 = 10 percent, and E(2r1) = 8 percent. If the liquidity premium theory of the term structure of interest rates holds, what is the liquidity premium for year 2, L2?
*October 31, 2014*

**trigonometry**

(1-tanx)^2/(1-tan^2 x) = (1-2tanx+tan^2 x)/(1-tan^2 x) = (1+tan^2 x)/(1-tan^2 x) - 2tanx/(1-tan^2 x) = sec^2x/(1-tan^2 x) - tan2x = 1/(cos^2x-sin^2x) - tan2x = 1/cos2x - sin2x/cos2x = (1-sin2x)/cos2x steve can i ask u what happen to the 1-tan^2x in the expression sec^2x/(1-tan...
*October 31, 2014*

**Algebra**

Factor 6x^3 + 12x^2 + 4x + 8 2(3x^2 + 2)(x + 2)
*October 31, 2014*

**math**

How can u write a unit rate if a least one term is a fraction? How is this different from writing a unit rate where both terms are whole numbers?
*October 30, 2014*

**Math**

How do I enter that into my calculator? 6/1.609*1760? I keep getting 2.118 but the answer is 1282?
*October 30, 2014*

**Math**

6 km to miles and the nearest yard? 6km*1mi/1.609km=3mi But how do I get to the yards from converting because my data booklet doesn't tell me 1yd=?km.
*October 30, 2014*

**Physics**

Thank you so much
*October 30, 2014*

**Physics**

A 2110 kg car traveling at 10.7 m/s collides with a 2780 kg car that is initially at rest at the stoplight. The cars stick together and move 2.00 m before friction causes them to stop. Determine the coefficient of kinetic friction betwen the cars and the road, assuming that ...
*October 30, 2014*

**physics**

A 71.5 kg ice skater moving to the right with a velocity of 2.92 m/s throws a 0.16 kg snowball to the right with a velocity of 20.1 m/s relative to the ground.
*October 30, 2014*

**Math**

if 150 vehicles passed luann how many more minivans than cars would you expect to pass her assume the rate continues
*October 30, 2014*

**Geometry**

Thank you
*October 30, 2014*

**Geometry**

Which pair of slopes could represent perpendicular lines? 1/7, 7 * 1/2, 2/4 –3/4, 4/3 (my answer or not?) 1/3, 1/3
*October 30, 2014*

**math**

kaya is making dream catchers. each dream catchers uses 6 feathers. she makes 4 dream catchers with black feather 3 with brown 1 with white and 2 with gray. what fraction of the dream catcher have either black or brown feather
*October 30, 2014*

**English**

Though remarkably inconvenient for my garden, the dog's rehab therapy is her digging of holes. Please correct me if I am wrong. digging of holes is a gerund Her ---what----digging of holes
*October 30, 2014*

**Social Studies**

Who founded (started) the Christian religion? Answer: Jesus and his Apostles Is Christianity a Monotheistic (one god) or a Polytheistic (many gods) religion? Answer: would it be Polytheistic since they believe in God, Jesus being his son, and the Holy Spirit.
*October 30, 2014*

**physics**

A spy in a speed boat is being chased down a river by government officials in a faster craft. Just as the officials’ boat pulls up next to the spy’s boat, both boats reach the edge of a 5.0 m waterfall. The spy’s speed is 15 m/s and the officials’ speed is ...
*October 30, 2014*

**Science asap!**

Which of the following is not a process that forms metallic ore? placer deposits fossil compaction hydrothermal solutions igneous processes 5. Which of the following nonmetallic mineral resources is used both as a building material and as an industrial mineral? sulfur ...
*October 30, 2014*

**Math**

Yes
*October 30, 2014*

**English**

My dogs' insistent barking woke me up at 4:00 a.m. barking woke me up---- is not a gerund is it?
*October 30, 2014*

**Algebra**

How to factor 6x^3 + 12x^2 + 4x + 8? I keep getting (6x^2 + 4)(x + 2).
*October 30, 2014*

**Financial accounting 4e**

Tybalt invested $6000 cash in the business in exchange for more common stock during year 2013 ( the December 31,2012 credit balance of retained earning was $168900) Tybalt construction is required to make a $16500 payment on its long-term notes payable during 2014.
*October 30, 2014*

**Physics**

The circuit shown below is in a uniform magnetic field that is into the page and is decreasing in magnitude at the rate of 150 tesla/second. What current does the ammeter read?
*October 30, 2014*

**Physics**

A set of twins work in the Sears Tower, a very tall office building in Chicago. One works on the top floor and other works in the basement. Considering general relativity, which twin will age more slowly?
*October 30, 2014*

**Physics**

An experiment is designed in which a proton and an antiproton collide, producing a particle with mass 9700 MeV. What must be the incident kinetic energies and velocities of the colliding particles?
*October 30, 2014*

**college algebra**

One isotope of holmium, 162Ho, has a half life of 22 minutes. The half-life of a second isotope, 164Ho, is 37 minutes. Starting with a sample containing equal amounts, find the ratio of the amounts of 162Ho to 164Ho after one hour. Rounded to three decimal
*October 30, 2014*

**physics**

A pelican flying along a horizontal path drops a fish from a height of 3.1 m. The fish travels 8.4 m horizontally before it hits the water below. What was the pelican’s initial speed? The acceleration of gravity is 9.81 m/s 2 . Answer in units of m/s
*October 30, 2014*

**health**

What does the U.S. government use to estimate a person’s body weight status? A. Health related illnesses B. Body mass index C. Scale D. Ruler
*October 30, 2014*

**english 111**

The game of lacrosse seems complicated to me. How does the word complicated function in the sentence? predicate adjective predicate nominative objective complement indirect object
*October 30, 2014*

**physics**

A crate is given an initial speed of 5.0m/s up the 22.5∘ plane shown in (Figure 1) . Assume μk = 0.12.
*October 30, 2014*

**medical billing and coding 2**

A 53 year old male patient was diagnosis with CMV infection, He has had a persistent cough, and microscopy confirmed the presence of pulmonary tuberculosis and CMV are HIV related. Patient was treated with ethombutol, what codes are assigned to this?
*October 30, 2014*

**algebra**

y=34+x30
*October 30, 2014*

**English**

Does the following sentence have 2 infinitives? Many people go to Europe to travel around historical sites. I am saying "to travel" because of verb following it Saying NO to "to Europe"
*October 30, 2014*

**Math--1 question? **

For which set of data is the median 15? 89, 75, 90, 15, 74, 88, 89 23, 35, 77, 81, 64, 15, 44 14, 15, 15, 15, 18, 18, 19, 19, 20 8, 20, 17, 21, 14, 15, 9
*October 30, 2014*

**Algebra**

I am helping my granddaughter in algebra and need to know how to get the answer. What is a solution of x² + 6x = –5? x = –6 x = –1 (I say this one) x = 1 * (she thinks it is this one) x = 6
*October 30, 2014*

**MATH ASAP**

identify the underlined place in 63.264. Then round the number to that place. thousandths; 63.26 hundredths; 63.26 hundredths; 63.27 thousandths; 63.27 2. The average annual rainfall in Miami, Florida is 61.93 inches. The average annual rainfall in Indianapolis, Indiana is 42....
*October 30, 2014*

**Algebra**

How to factor 6x^3 + 12x^2 + 4x + 8? I keep getting (6x^2 + 4)(x + 2).
*October 30, 2014*

**Math question**

7. What is the best measure of central tendency for the data? What answer do you get using this measure? red blue green brown red pink orange mode; red median; green mean; red mode; pink
*October 30, 2014*

**Social Studies HELP!**

Which statement best describes Albigence's evaluation of Washington's leadership? A. he thinks that Washington has been far too timid and has not thought enough about the overall picture of the war to take strong action needed. B. he is due that if Washington had ...
*October 30, 2014*

**CHEMISTRY**

ag2s
*October 30, 2014*

**Math help!**

Point E is located at (-2,2) and point F is located at (4,-6). What is the distance between points E and F? A. square root 52 B. square root 28 C. 10 D. square root 20 Is the answer A? Thank you
*October 30, 2014*

**Medical Billing and Coding**

This 51 year old make is a tye 1 insulin dependent diabetic admitted for treatment of a grade 111 foot ulcer which involved necrosis of the muscle on the left foot with gangrenous changes resulting from diabetic neuropathy, patheroseclerosis and chronic peripheral vascular ...
*October 30, 2014*

**Medical Billing and Coding**

This 35 year old HIV-positive make with progressive lymphadenopathy and unexplained fevers, night sweats, and chills, low osmolar CT scan of the chest, abdomen, pelvis and neck showed extensive lymphadenopathy involving mediastinum and left hilum, paratracheal nodal chains, ...
*October 30, 2014*

**chemistry**

A sample of neon gas at 1.20 atm compresses from 0.250 L to 0.125 L. If the temperature is held constant, what is the final pressure?
*October 30, 2014*

**Math help!**

Which of the triangles described in the table is a right triangle. Table Triangle Q, Side 1=25 Side 2=10 Side 3=15. Triangle R, Side 1=26 Side 2=20 Side 3=46. Triangle S, Side 1=25 Side 2=20 Side 3=1,025. Triangle T, Side 1=25 Side 2=26 Side 3=650. A. Q B. R C. S D. T Is the ...
*October 30, 2014*

**Math help!**

Oops I meant to put D,
*October 30, 2014*

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