Monday

September 1, 2014

September 1, 2014

Total # Posts: 152

**Chemistry**

1.50g of NaHCO3 is dissolved in 17.1g of water. Express the solubility of NaHCO3 in grams per 100g of solvent and calculate the % composition of NaHCO3 and water.
*August 21, 2014*

**Accounting **

Accounting 1 Help! 1. An accountant records a transaction when cash is paid or received under which basis of accounting? cash deferred accrual liability 2. When unearned revenue is initially recorded as a revenue, the adjusting entry would include a credit to a liability. ...
*April 15, 2014*

**Math**

1 5/6
*April 10, 2014*

**Math**

4 1/3 - 21/2
*April 10, 2014*

**Math**

4 1/3 - 2 1/2 Thank you for your help
*April 10, 2014*

**Math **

3 1/10 + 14 2/5
*April 10, 2014*

**Math**

4 2/9 + 2 1/3
*April 10, 2014*

**Math **

7/12, 3/4, and 2/3 in order which one is the smallest to the greatest?
*April 8, 2014*

**Math**

Is 2/3 greater than 3/4
*April 8, 2014*

**Math**

Vicki bought an ice cream cake cut into 6 equal pieces. Vicki, Margo,and Elena each took 2 pieces of the cake home. Vicki says she and each of her friends took 1/3 of the cake home. Is Vicki correct? And
*March 13, 2014*

**Math**

A greenhouse at Alice's nursery has 340 planters. Each planter holds 10 plants. Alice has 1,092 plants in the greenhouse. How many planters are completely empty?
*March 9, 2014*

**math**

1/6 of a box of paperclips are red, 5/12 of them are blue and 2/5 of the remainder are black. If there are 10 black paperclips, how many more blue paper clips are there than red ones?
*February 13, 2014*

**Math**

Javier rode his bike for a total of 41 minutes. Before lunch, he rode for 1 minute less than 5 times the number of minutes he rode after lunch. How many minutes did Javier ride before lunch?
*October 31, 2013*

**Math**

Together , Tom and max have 72 football cards. Tom has 2 more than 4 times as many cards as max has. How many football cards does Tom have ?
*October 31, 2013*

**interpersonal communication**

The best empathic listening response below is
*September 9, 2013*

**comm**

The best empathic listening response below is
*September 9, 2013*

**finance**

David will retire to Florida in ten years. After he retires, he wants to take out $28,000 at the end of each year for 15 years. If he can invest the money at 8% annually, what amount must he invest today?
*July 8, 2013*

** math**

A grocer mixes a premium blend of coffee worth $17/kg with a coffee blend worth #7/kg. A mixture of 36 kg worth $11/kg is produced. How many kilograms of each type of coffee are included in the mixture?
*May 11, 2013*

**public speaking**

yes
*April 17, 2013*

**Math**

the sum of 5 consecutive whole numbers is 2005. what is the sum of all the digits of these 5 numbers
*March 28, 2013*

**math**

In slow- pitch softball the ball is pitched in an underhand motion. A batter in a softball game is pitched a ball that has initial vertical velocity of 35 feet per second. a. Write an equation for the height h (in feet) of the ball as a function of the time t (in seconds) ...
*March 21, 2013*

**Interpersonal Communication COM200**

The best empathic listening response below is
*March 7, 2013*

**Math**

What about taking $58.62 *45% = $85.00
*January 15, 2013*

**Information Systems**

Richard's Plumbing Co. has rapidly grown to become a multi-state business, and it has recently acquired Mr. Plumber, a smaller company with multiple outlets located in the same states. Each of the companies has its own data network. Mr. Plumber's network connects the ...
*November 1, 2012*

**IT**

Can someone please help me start this? Using Shannon’s formula, calculate the data transfer rate given the following information: signal frequency = 10,000 Hz signal power = 5000 watts noise power =230 watts.
*November 1, 2012*

**physics**

An airplane is flying with a velocity of 252m/s at an angle of 30 degrees with the horizontal. when the altitude of the plane is 2.7km, a flare is released from the plane. the flare hits the target on the ground. what is the angle theta?
*September 23, 2012*

**physics**

an airplane with a speed of 40.4 m/s is climbing upward at an angle of 54 degrees with respect to the horizontal. When the planes altitude is 520 m, the pilot releases a package. a. calculate the distance along the ground measured from a point directly beneath the point of ...
*September 23, 2012*

**physics**

You are traveling in a convertible with the top down. The car is moving at a constant velocity 20.0m/s due east along flat ground. You throw a tomato straight upward at a speed of 15.9m/s. how far has the car moved when you get a chance to catch a tomato?
*September 23, 2012*

**Absolute Vale**

Find all numbers x for which |x-1| + |x-2| > 1. I know the answer is that there exists no such x, but I need someone to explain to me the steps as to figuring out why that is the case.
*September 3, 2012*

**Math**

Find all numbers x for which |x-1| + |x-2| > 1. I know the answer is that there exists no such x, but I need someone to explain to me the steps as to figuring out why that is the case.
*September 2, 2012*

**ODE**

compute the inverse laplace transform 2S^2+13S+5/(s+3)(s-1)^2 i got 3e^t+5e^t+3e^t, not sure it correct
*August 28, 2012*

**ODE**

compute the inverse laplace transform 2S^2+13S+5/(s+3)(s-1)^2 i got 3e^t+5e^t+3e^t, not sure it correct
*August 28, 2012*

**ODE**

what is the laplace transform of 5/2.e^t-3/2.e^-t
*August 28, 2012*

**ODE**

what is the laplace transform of cost+4sint
*August 27, 2012*

**ODE**

if the DE x^2.y"+xy'-y=0 has a general solution c1x+c2.x^-1, use the variation of parameters to find the particular solution x^2.y"+xy'-y=2-2/x
*August 26, 2012*

**math(ODE)**

there are 3 linearly independent solutions of the DE t^3.y"'+3t^2.y"-6ty'+6y=0 of the form t^p, find the possible values of p
*August 25, 2012*

**Calc 2 **

The region bounded by y= 1/(x^2+2x+5), y=0, x=0, and x=1, is revolved about the x-axis. Find the volume of the resulting solid.
*March 12, 2012*

**physics**

The Ferris Wheel in the figure below is a vertical, circular amusement ride with radius 10 m. Riders sit on seats that swivel to remain horizontal. The Ferris Wheel rotates at a constant rate, going around once in 11 s. Consider a rider whose mass is 59 kg. part1 At the bottom...
*February 23, 2012*

**physics**

n outer space, far from other objects, block 1 of mass 40 kg is at position (7,9,0) and block 2 of mass 1000 kg is at position (17,13,0) Since the z components of position are zero, the (vector) gravitational force acting on block 2 due to block 1 will be (-21.359e-9,-8.54198e...
*February 5, 2012*

**physics**

A motorist traveling at 16 m/s encounters a deer in the road 43 m ahead. If the maximum acceleration the vehicle’s brakes are capable of is −6 m/s2, what is the maximum reaction time of the motorist that will allow her or him to avoid hitting the deer?
*January 29, 2012*

**Physics**

b i got 3.96x10^4 km.h and i already did the magnitude which it 3.80x10^5 for the last question about the "for this time interval, find the direction of its average acceleration. = ? countercloclock wise from + x axis
*January 22, 2012*

**Physics**

nevermind you converted it
*January 22, 2012*

**Physics**

how did you get 29.1 to = 3.77* 10^5?
*January 22, 2012*

**Physics**

(933-695)/7.12- 4.85 = 238/2.27= 104.84 thats how i got that anwser...
*January 22, 2012*

**Physics**

but it has to equal km/h^2 and i got those anwsers wrong
*January 22, 2012*

**Physics**

At an air show, a jet plane has velocity components vx = 695 km/h and vy = 440 km/h at time 4.85s and vx= 933km/h and vy = 465 km/h at time 7.12 s. For this time interval, find (a) the x and y components of the plane’s average acceleration and (b) the magnitude and ...
*January 22, 2012*

**Physics**

At an air show, a jet plane has velocity components vx = 695 km/h and vy = 440 km/h at time 4.85s and vx= 933km/h and vy = 465 km/h at time 7.12 s. For this time interval, find (a) the x and y components of the plane’s average acceleration and (b) the magnitude and ...
*January 22, 2012*

**physics**

a point charge q1= -4.00nC is at a point (0.6,0.8) in the xy axis, and a second point charge q2=4.73nC is at the point (0.6,0), calculate the magnitude and direction of the net electric field at the origin due to these two points. Ive tried calculating the two separate ...
*December 5, 2011*

**statistics**

Yes, I understand how you worked out the mean. I understand about the 12 above and below the mean, but how did you arrive at 12 = 2 standard deviation points.
*October 26, 2011*

**Math**

Thanks, what about this one. It says to multiply. 2y and 14x^5y ___ ______ 7x^2 y^5
*October 9, 2011*

**Math**

This is what the question said..... Find all excluded values for the expression. That is, find all values of for which the expression is undefined.
*October 9, 2011*

**Math**

How do you work 5y ____ 3y+6 It is in fraction form and it just got me stuck,,,please help!!!!! :(
*October 9, 2011*

**calculus**

pleeeeeeas help meeee i used an online integral calculator and got an answer which says -1/2cot(x^2) but i don't know how to get there. the problem is "integral{xcsc^2(x^2)}
*September 29, 2011*

**calculus**

wooow, i cant believe ive been staring at it this long and couldnt see this. thanks!!
*September 28, 2011*

**calculus**

what is the integral of {sin(x)tan(x)} i tried turning tan(x) into sin(x)/cos(x) then doing u substitutions but i always have an extra sin(x) left. can you help me pleeeease
*September 28, 2011*

**physics**

the distance between the two plates is 1cm and the lengeth of each plate is 2cm so how do i get started
*September 16, 2011*

**physics**

ok i have a problem to work on in my new course, and i was wondering what i need to do to tackle it. the question is as follows: An electron is projected with an initial velocity Vo=10^7m/s into the uniform field between the parallel plates "E". the direction of the ...
*September 16, 2011*

**spanish**

How do you say "This special is only valid today" Please dont use google translate or another translator. Please answer if you are fluent in Spanish.
*June 2, 2011*

**Statistics**

if 25% of all students asked say they spend too much time on homework, and 12 students are selected at random, what is the expected number of students who say they spend too much time on homework?
*May 30, 2011*

**spanish**

what do you study
*May 30, 2011*

**geometry**

help please.... 1:(-2, -1) is reflected over the y-axis. What are the coordinates of the image? A:(2, -1) B:(-2, 1) C:(-1, -2) D:(2, 1) 2:(2, -5) is reflected over the x-axis. What are the coordinates of the image? A: (-2, -5) B;(2, 5) C:(-5, 2) D:(-2, 5)
*May 11, 2011*

**geometry**

I realy need help please!!!! 1-Describe the translation in words: (x, y) (x - 4, y - 9) A)4 units to the left, 9 units down B)4 units to the left, 9 units up C)4 units to the right, 9 units down D)4 units to the right, 9 units up 2-][3-,2.[1,4],[-5,4]2,-3]at element is in row ...
*May 11, 2011*

**psychology**

help me please.... 1- What is the importance of the power of the individual? 2- Explain the importance of peacemaking. 3-What is the affect of aggression on society?
*May 10, 2011*

**verb**

wrie the past tense form of the verbs.
*May 8, 2011*

**accounting**

Diamond Company produces a chair that requires 5 yds. of material per unit. The standard price of one yard of material is $7.50. During the month, 8,500 chairs were manufactured, using 43,700 yards at a cost of $7.60. Determine the (a) price variance, (b) quantity variance, ...
*May 6, 2011*

**health**

No, I don't really need the fitness plan, so thats the answer thanks.....
*May 3, 2011*

**health**

1. I Think its the healthy habits 2- I think its true what you think?
*May 3, 2011*

**health**

Please help... Staying fit requires all of the following EXCEPT _______. A-a rigid fitness plan B-physical activity C-healthy habits D-healthy eating 5. True or False: To develop a personal fitness plan you should consider which exercises and sports you like the most.
*May 3, 2011*

**American History**

Thanks (:
*May 1, 2011*

**American History**

Please help me with these five question.... 1-what issue brought difficulties to the admission of new states to the union during the early and mid-1800s? A. Manifest destiny B. trade restriction C. Access to overland trails D.disputes over the spread of slavery 2-What was one ...
*May 1, 2011*

**American History**

thanks,but i got more
*May 1, 2011*

**American History**

please help who was against the mexican-american war? northerners,democrats,southerners,or the media
*May 1, 2011*

**Comm 155 **

I need help identifying the adverbs and adjectives. I am not sure which are which. Can someone please help me figure this out? In my early years, I was not really thinking about the importance of credit. My credit was severely damaged as a result. Over the years, I have been ...
*March 29, 2011*

**Chemistry**

How many grams of SO2 can be produced from 100g of S and excess O2
*March 19, 2011*

**Algebra**

3(15t^2-24t+8)
*February 17, 2011*

**math**

a farmer needs to buy fencing to go around his garden. The garden is a 20 by 15 rectangle . How much fencing will he need?
*January 27, 2011*

**precalc**

find domain of f(x) = 15/sqrt(x+6)
*December 18, 2010*

**algebra**

solve algebraically 3e^(-4x) = 12
*December 18, 2010*

**algebra**

evaluate algebraically for exact values: 10^(x+3) = 100
*December 18, 2010*

**chemistry**

If I have a Galvanic cell of Nickel and Gold where Nickel is (Ni->Ni^+2 + 2e-) and the oxidation of gold is (Ag^+->Ag + e-) then do I need to double the cell potential of gold (+0.80) if I'm trying to find the standered cell potential (volatage)?
*December 12, 2010*

**adult education**

-100*10=-1000 5+-1000=-995=(s+25)/2 -995*2=-1900=s+25 -1990-25=s -2015=s
*December 12, 2010*

**Chemistry**

. ' ' ' ; ;;; ; ; ; ; ; ; ; ; ; ;;; ; ; ; ; ; ; ; ; ; ; ; ;
*December 9, 2010*

**similiar figures**

i dont know
*November 9, 2010*

**physics**

A motorboat accelerates uniformly from a velocity of 6.5 m/s to the west to a velocity of 1.5 m/s to the west. If its acceleration was 2.7 m/s to the est, how far did it travel during the acceleration
*October 26, 2010*

**physics**

A surveyor measures the distance across a straight river by the following method. Starting directly across from a tree on the opposite bank, she walks d = 72 m along the riverbank to establish a baseline. Then she sights across to the tree. The angle from her baseline to the ...
*September 8, 2010*

**Algebra II**

|x+8| _____ = 0 2 How do you figure out absolutes with 0?
*August 30, 2010*

**Math**

some can work more, others can work less
*August 17, 2010*

**Math**

Ok I need help to figure out how to solve this problem 4 working move into town looking for work. A local business offers them 200 hours of work. The catch is, they have to work the same number of hours as they do days. I.E. if they work 8 hours they have to work 8 days. What ...
*August 17, 2010*

**9th grade**

Find the perimeter of a regular pentagon with a side measure of 57 centimeters. A. 285 cm B. 649 cm C. 228 cm D. 342 cm
*July 14, 2010*

**binomial expansion **

how do you expand the following as a series of ascending powers of x upto x^2 using binomial expansion for this function (1+x)^2(1-5x)^14
*May 13, 2010*

**Physics**

6.5*10^.8N
*May 3, 2010*

**physics**

the earthis moving around the sun in a circular orbit of radius 1.5*10^11. it makes one revolution per year.find the angular speed of earth in radian/sec, and the tangential speed of earth using the formula v=r.w , and tangetial speed ?
*April 25, 2010*

**ACCOUNTING**

Considering the following pricing concepts; Markup Methods (markup on Total Cost, Variable Cost, and Product Cost) and Target Costing, explain when it is appropriate (and why) to use each of the methods. (Hint: use multiple choice questions 1 and 2 to start you in the right ...
*April 21, 2010*

**ACCOUNTING**

Considering the following pricing concepts; Markup Methods (markup on Total Cost, Variable Cost, and Product Cost) and Target Costing, explain when it is appropriate (and why) to use each of the methods. (Hint: use multiple choice questions 1 and 2 to start you in the right ...
*April 21, 2010*

**10th grade**

Its 47 feet.
*March 18, 2010*

**physics**

An airplane is flying with a velocity of 240 m/s at an angle of 30.0° with the horizontal, as the drawing shows. When the altitude of the plane is 2.2 km, a flare is released from the plane. The flare hits the target on the ground. What is the angle θ?
*January 18, 2010*

**physics**

An airplane is flying with a velocity of 240 m/s at an angle of 30.0° with the horizontal, as the drawing shows. When the altitude of the plane is 2.2 km, a flare is released from the plane. The flare hits the target on the ground. What is the angle θ?
*January 18, 2010*

**algebra**

thnx SO MUCH
*November 7, 2009*

**Physics urgent**

thanks a lot can you help me with a few other questions i'm having issues with
*October 8, 2009*