Thursday

July 30, 2015

July 30, 2015

Total # Posts: 77

**Physics**

The position of the front bumper of a test car under microprocessor control is given by x(t)=2.17m+(4.80m/s2)t2−(0.100m/s6)t6. Find it's acceleration the second instant when the car has zero velocity. I already know that the position of the car when it has zero ...
*June 8, 2015*

**fire**

Umm guess so...
*April 17, 2015*

**fire**

Two line of same flow with different lengths, no elevation find: a. Total friction loss for line A b. Total friction loss for line B c. PDP (pump discharge pressure) for line A d. PDP for line B Layout: Line A=150' of 3" 300gpm combination nozzle Line B= 300" of ...
*April 17, 2015*

**math**

Determine which ordered pair is not a solution of y=-5x-4. (10,-52) (7,-39) (-7,31) (8,-44) I think it is (7,-39)
*April 16, 2015*

**Math**

Without graphing, tell whether the line containing (6.-3) and (0,-8) is horizontal, vertical or neither. I believe it horizontal
*April 15, 2015*

**Math**

Determine which ordered pair is a solution of y=x2 -2. (-2,6) (5,21) (-1,-1) (-5,24)
*April 15, 2015*

**Math**

Triangle S(-6,10)T(-9,3)U(-3,3) is translated right 2 units and 3 units down. What are the coordinates of the vertices of the image? s'(-9,12), t'(-12,5), u'(-6,5) s'(-4,7), t'(-7,0), u'(-1,0) s'(-8,13), t'(-11,6), u'(-5,6) s'(-4,10), t...
*April 14, 2015*

**Math**

Does a equilateral triangle shape have rotational symmetry? I pretty sure the answer is yes
*April 3, 2015*

**Math**

Find the coordinates of the image of point R(3, -5) rotated 180 about the origin. I think the answer is (-5,-3)
*April 3, 2015*

**math**

The vertices of ^ABC are A (2,-5), B(-3,5) AND c(3,-3) The Triangle is reflected over the x-axis. I think the answer would be A(2,-5), B(-3,5), C(3,-3) ->(-2,-5), (3,5), (-3,-3)
*April 1, 2015*

**Math**

What is the correct description for the translation of A to A? (10,3)-> (1,6) right 9; up 3 left 9; down 3 right 9, down 3 left 9; up 3 I think the answer is right 9;up 3
*April 1, 2015*

**Math**

The point C(3, -1)is translated to the left 4 units and up 1 unit. How do I write a rule to describe the translation?
*April 1, 2015*

**Math**

Point M(4, 3) is translated according to the rule (x, y) (x+2,y-5). What are the coordinates of of M?
*March 31, 2015*

**Algebra 1**

So I attempted this and I'm not sure if it's the correct answer - and I don't know how to graph it.. Student tickets to the Homecoming game cost $5 each. General admission tickets cost $8 each. So far, 150 tickets have been sold. $900 has been collected. A. Write a...
*September 16, 2014*

**quantitative chemistry**

How do you write an expression for the mass of the residue in terms of x and y?
*September 19, 2013*

**quantitative chemistry**

How do you write an expression for the mass of the residue in terms of x and y?
*September 19, 2013*

**quantitative chemistry**

How do you write an expression for the mass of the residue in terms of x and y?
*September 19, 2013*

**business**

Euromart Tile Company borrowed $40,000 on April 6 for 66 days. The rate was 14% using the ordinary interest rate method. On day 25 of the loan, Euromart made a partial payment of $15,000, and on day 45 of the loan, Euromart made a second partial payment of $10,000. What was ...
*June 21, 2013*

**Business math**

Alicia deposited $2000 into saving. The bank pays 6% ordinary interest. How many years will it take for the $2000 to reach $2600?
*June 21, 2013*

**physical geoprahy **

Assume that a parcel of air is forced to rise up and over a 6000-foot high mountain (shown below). The Initial temperature of the parcel at sea level is 76.5 F, and the lifting condensation level (LCL) of the parcel is 3000 feet. The DAR is 5.5 F/1000' and the SAR is 3.3 F...
*May 28, 2013*

**Chemistry H**

If the pressure on the surface of water in the liquid state is 30 kpa, the water will boil at... 0, 30, 70, or 100 degrees c?
*February 24, 2013*

**Chemistry I NEED HELP! PLEASE**

Thank You so MUch, I havee a few more questions Down below, this is just the first THANK YOU!
*January 17, 2013*

**Chemistry I NEED HELP! PLEASE**

How many moles of Hydrochloric acid are needed to dissolve 39.0 grams of aluminum Hydroxide? I just need to write out the equation but I was out and don't know hwo PLEASE HELP!
*January 17, 2013*

**Grammar**

No... can you use my family and i? or the group and my parents?
*January 17, 2013*

**Chemistry**

I have to write the equation for the following and I am not figuring it out.I was out with flu and so lost...please help. How many moles of Hydrochloric acid are needed to dissolve 39.0 grams of aluminum Hydroxide? How many grams of precipitate will form a reaction between 10g...
*January 17, 2013*

**Math 8 - HELP!!!**

the reason why it could be on point six is because any number that can be displayed by a fraction is rational,so in the case of 1.6 the fraction would be 1 and 6 tenths... Make sense?
*January 17, 2013*

**Health**

Higher!
*January 17, 2013*

**Calculus**

A swimming pool is 60ft long by 25ft wide. Its depth varies uniformly from 3ft at the shallow end to 15ft at the deep end. The pool is being filled with water at a rate of 800ft3/min. There is 5ft of water at the deep end. What is the equation for finding the rate at which the...
*December 20, 2012*

**Chemistry**

Typically, there is a scale provided for weighing the nails. For example, a notice placed above the nail bin might read, “For the nails in the bin below, there are 500 nails per kg.” Using this conversion factor, perform the following calculations. How many nails ...
*August 20, 2012*

**Marh**

@ Ms. Sue WHY? is that correct?
*August 20, 2012*

**Marh**

For the nails in the bin below, there are 500 nails per kg.” Using this conversion factor, perform the following calculations. How many nails would you have if you had 0.15 kg?
*August 20, 2012*

**physics college**

Use Newton's Law of Gravitation to compute the work W required to propel a 1100 kg satellite out of the earth's gravitational field. You may assume that the earth's mass is 5.981024 kg and is concentrated at its center. Take the radius of the earth to be 6.37106 m ...
*May 16, 2012*

**physics college**

A billiard ball that is initially at rest is given a sharp blow by a cue stick. The force is horizontal and is applied at a distance h = 2R/3 below the centerline, The speed of the ball just after the blow is v0 and the coefficient of kinetic friction between the ball and the ...
*May 16, 2012*

**physics college**

A billiard ball that is initially at rest is given a sharp blow by a cue stick. The force is horizontal and is applied at a distance h = 2R/3 below the centerline, as shown in the figure below. The speed of the ball just after the blow is v0 and the coefficient of kinetic ...
*May 15, 2012*

**physics **

The cable of a 1800-kg elevator has broken, and the elevator is moving downward at a steady speed of 1.6 m/s. A safety braking system that works on friction prevents the downward speed from increasing. a. at what rate does mechanical energy turn into thermal energy. I found ...
*May 1, 2012*

**physics **

The cable of a 1800-kg elevator has broken, and the elevator is moving downward at a steady speed of 1.6 m/s. A safety braking system that works on friction prevents the downward speed from increasing. a. at what rate does mechanical energy turn into thermal energy. I found ...
*May 1, 2012*

**physics 2**

sorry here is actual question: A 285-kg stunt boat is driven on the surface of a lake at a constant speed of 13.5 m/s toward a ramp, which is angled at 28.5° above the horizontal. The coefficient of friction between the boat bottom and the ramp's surface is 0.150, and ...
*May 1, 2012*

**physics**

The cable of a 1800-kg elevator has broken, and the elevator is moving downward at a steady speed of 1.6 m/s. A safety braking system that works on friction prevents the downward speed from increasing. a. speed of boat when leaves ramp (assume that engine turned off once boat ...
*May 1, 2012*

**URGENT MATH HELP!**

When a ball is thrown upward, its height, h, in metres, is given by h=1.5 +19.6t -4.9t², where t is the number of seconds after it is thrown. For what length of time is the ball above the ground?
*March 27, 2012*

**ALG/TRIG**

I cannot seem to get the right answer. Animal Pulse Rate According to one model, an animal’s heart rate varies according to its weight. The formula N(w)=885w^-1/2 gives an estimate for the average number N of beats per minute for an animal that weighs w pounds. Use the ...
*March 6, 2012*

**ALG/TRIG**

Lost is an understatement..please help me understand this. Orbits and Distance Johannes Kepler (1571–1630)discovered a relationship between a planet’s distance D from the sun and the time T it takes to orbit the sun. This formula is , where T is in Earth years and ...
*March 6, 2012*

**Managerial ECON**

QuadPlex Cinema is the only movie theater in Idaho Falls. The nearest rival movie theater, the Cedar Bluff Twin, is 35 miles away in Pocatello. Thus QuadPlex Cinema possesses a degree of market power. Despite having market power, QuadPlex Cinema is currently suffering losses. ...
*November 25, 2011*

**business strategic management**

Discuss in specific terms your understanding of ethical business strategies, corporate social responsibility, and environmental responsibility at Best Buy?
*November 7, 2011*

**Managerial ECON**

The chief economist for Argus Corporation, a large appliance manufacturer, estimated the firm’s short- run cost function for vacuum cleaners using an average variable cost function of the form AVC = a + bQ + cQ2 where AVC dollars per vacuum cleaner and Q number of vacuum ...
*November 6, 2011*

**Managerial ECON**

You are planning to estimate a short- run production function for your firm, and you have collected the following data on labor usage (L) and output (Q): Labor usage Output 3 1 7 2 9 3 11 5 17 8 17 10 20 15 24 18 26 22 28 21 30 23 a. Does a cubic equation appear to be a ...
*November 6, 2011*

**Managerial ECON**

Suppose that a firm is currently employing 10 workers, the only variable input, at a wage rate of $100. The average physical product of labor is 25, the last worker added 10 units to total output, and total fixed cost is $5,000 a. What is marginal cost? b. What is average ...
*November 6, 2011*

**econ**

Microsoft has been a giant in the software industry. Can we define Microsoft as a monopoly? Please explain. In addition, whether the Learner Index works well to define the market power for Microsoft in the software industry? Explain your answer. please help me answer this for ...
*November 6, 2011*

**econ**

There are so many industries having websites for retail. However, not every industry is successful in online retail. In your opinion, what are the common characteristics of industry which can sell products successfully in online retail? Please provide at least one example and ...
*November 6, 2011*

**physics-help please........**

The momentum and the kinetic energy of particle A is eight times and nine times the momentum and the kinetic energy of particle B, respectively. What is the ratio of the mass of particle A to that of particle B?
*October 30, 2011*

**math**

-9h-6+12h+40=22 solve the equation I don't have a clue please help
*September 15, 2011*

**ALGEBRA 117**

2. Biologists want to set up a station to test alligators in the lake for West Nile Virus. Suppose that the costs for such a station are $1,400 for setup costs and $4.00 to administer each test. a. Write an expression that gives the total cost to test x animals. b. You can ...
*August 13, 2011*

**ALGEBRA 117 **

1. The cost, in millions of dollars, to remove x % of pollution in a lake modeled by C= 3,000/300-3x. Please note: x is in percent, not decimal form. a. What is the cost to remove 75% of the pollutant? b. What is the cost to remove 90% of the pollutant? c. What is the cost to ...
*August 13, 2011*

**Heat!!! **

Bull it's a Penn Foster exam cheater
*July 5, 2011*

**economics**

Explain why economic policies aimed at stabilization can actually increase, rather than decrease, the magnitudes of economic fluctuations.
*March 17, 2011*

**Question about Jiskha**

Oh, that makes sense. Thank you.
*February 17, 2011*

**geography**

IS there any way you could find a map of mesopotamia??? please?? THank you.... you see i need to find the 2 rivers that form the boundraries and i cant find a map...
*January 18, 2011*

**geography**

where does the Jordan River originate???
*January 18, 2011*

**algebra**

How do I solve for x on both sides of the equation, i.e. 72x+48=42x-12? Is there a standard way of figuring this out?
*December 6, 2010*

**4th grade**

How can you show without multiplying that 4/9 is greater than 0.4?
*November 30, 2010*

**5th grade math**

Larsen's class collected 137 cans. Schmidt's class collected 87 cans & Lopez's class collected 197 cans. Use mental math to see how many more cans Lopez's class collected than Schmidt's. (Got answer of 110) How many more cans did Larsen's class collect ...
*September 14, 2010*

**Accounting**

____ 4. When a new partner is admitted to a partnership, there should be a(n) a. the total assets of the partnership increase b. new capital account is added to the ledger for the new partner c. the total owner's equity of the partnership increases d. the cash received by ...
*February 22, 2010*

**Writing**

I am trying to find out what are parameters of persuasive writing. I tried to goggle it and all I got was links to essays that people wrote. I do not want essays, I want parameters. Please help point me in the write direction.
*November 1, 2009*

**algebra**

Will someone please look over these? I am so lost on these. 1. find the domain of p(x)=xsquared+10- I said {x|x is a real number 2. find the intercepts of 3x+2y=6- I got (0,3) and (2,0) 4.find the equation of (-6,-6)and (6,6)- got y=x 7. slope and y-intercept of x+2y=4- got ...
*September 17, 2009*

**Math 115**

Thank you
*July 30, 2009*

**Math 115**

That is how the problem is written out. So can you please help me with this?
*July 30, 2009*

**Math 115**

I have 15-14/(4)(4)-16 and it says to perform the indicated doperation. I come up with 1/0 so that would be undefined correct?
*July 30, 2009*

**math**

Thank you :-)
*July 21, 2009*

**math**

multiply (simplified fraction) -8/3*(7/1)
*July 21, 2009*

**math 115**

I have a world population of 1591000000 in 1950 and a population of 4028000000 in 2000. I need to know the percent of increase. First I subtract 1591 from 4028= 2,437,000,000 and then I divide that by 1,591,000,000, which equals 1.53174104336. Where do I go from here?
*July 17, 2009*

**Criminal Justice**

Where can I find information on: Who are the advocates who emphasize individual responsibility and hold offenders responsible for their actions? Who are the advocates who emphasize rights over punishment? I have read all my course work and material and tried to find it on ...
*May 10, 2009*

**Criminal Justice**

But cannot all of them be considered implications of crime? Coffee has sugar or caffeine in it, salt can be used to hide cocaine, and processed foods can be used to poison people with chemicals. But my teacher said that one of those is the right answer.
*May 7, 2009*

**Criminal Justice**

Which of the following has not been implicated in the production of criminal violence? 1. Coffee 2. Salt 3. MSG 4. Processed Foods I believe MSG but I am not sure. Is there any links out there that can help to conform my theory?
*May 7, 2009*

**chemistry**

ops I meant to put 410 in the equation.
*January 25, 2009*

**chemistry**

Benzene has a heat of vaporization of 30.72kj/mol and a normal boiling point of 80.1 C . At what temperature does benzene boil when the external pressure is 410 ? This is how I am solving this problem, ln(415/760)= (30720/8.314)*(1/80.1 - 1/T2) It is asking to answer using two...
*January 25, 2009*

**health care**

how would you ensure the mentally ill are placed in appropriate facility?
*November 16, 2008*

**please help me paraphrase**

i need help too!!!! i googled and found this page
*October 25, 2006*

**Logic**

Having problems with solving this question. The directions are: Use the 18 rules of inference, supply a proof. 1.(RvX)>(A>B) 2.~Q>~C 3.~C>Z 4.R.Y 5.QvA The conclusion I'm supposed to arrive at is /ZvB
*July 21, 2005*

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