Saturday

July 30, 2016
Total # Posts: 113

**Physics**

Considering a mass-spring system aligned horizontally moving at a velocity v. a) How will the velocity of the mass change if amplitude is doubled. b) How will the velocity of the mass change if the spring constant is quartered? I know the answer to the first one is that it ...
*July 27, 2016*

**Algebra**

(9*10^4)(8*10^6) Write the results in scientific notation 7.2*10^25 1.7*10^11 7.2*10^11 1.7*10^25 my answer 1.7*10^11
*May 27, 2016*

**Social Studies**

Which of the following events caused the end of the Depression of 1893? The supply of gold increase. The government printed extra money. Inflation caused the price of goods to increase.*** Several banks closed.
*March 24, 2016*

**Social Studies**

How did Reconstruction affect daily life in south Carolina? A. Carpetbaggers and scalawags had less of an influence on the state.**** B. Northerners and freedman had more opportunities in the state. C. African Americans families received 40 acres and a mule. African Americans ...
*March 24, 2016*

**algebra**

Find the lateral area oft he square pyramid 8m 8 m slant height 22m 1/2 8x22x3.14=4014.92
*February 29, 2016*

**Algebra**

An ice cream scoop has a diameter of 2 1/2 inches. What is the volume of the sphere-shape scoop of ice cream that the scooper makes? 6.54 in3 8.18 in3**** 19.63 in3 64.45 in3
*February 24, 2016*

**Algebra**

For the pair of similar solids, find the value of the variable. radius 15cm height 6cm the other is radius 5cm height x cm 3cm **** 18cm 16cm 2cm For the pair of similar solids, find the value of the variable. base x mm height 24mm the other base 4mm height 8mm 12mm ***** 48mm...
*February 23, 2016*

**Social Studies**

What event caused four additional Southern states to secede from the Union? The U.S. accepted West Virginia as a state. The South fired on Fort Sumter.**** Lincoln declared the Emancipation Proclamation. Lincoln raised an army.
*February 23, 2016*

**Social Studies**

Please check my answers 1. There were two different groups in the elite planter class. What distinguished these groups? education level how many generations had money*** their location the crops they planted 2. Which of the following accurately represents the Southern class ...
*January 20, 2016*

**physics**

Practice Problem 13.9 Let's begin by looking at a flow problem in which the diameter of a pipe changes along the flow path. We will need to use both the continuity equation and Bernoulli's equation for this problem. Water enters a house through a pipe with an inside ...
*December 14, 2015*

**Math**

2/3= 12/x x=18 x=12 x=36 x=8 I think the answer is 36
*October 26, 2015*

**History**

Who was elected President of the Continental congress? George Washington John Rutledge Thomas Lynch Henry Middleton I think it was Henry Middleton
*October 23, 2015*

**Math**

Triangle ABC has coordinates A(1,4) B(3,-2) and C(4,2) Find the coordinates of the of the image reflection over the x-axis. I believe it would be the opposite. A(1,4) B(3,-2) C(4,2)=(-1,-4) B(-3,2) C(-4,-2) Is this right
*October 22, 2015*

**Math**

If the lengths of the legs in a right triangle are 7 and 8, what is the approxir? 1.4 3.5 5.4 10.6 I think it is 5.4
*October 14, 2015*

**math**

(y4)(y3) y1 y2 y12 y43 I think it is y12
*September 21, 2015*

**math**

solve 2x3 -+4r2 if r=1 and s=5 is it 25x25x25=15625 42x42= 1764 15625-1764=13861 I think I got it
*September 18, 2015*

**math**

simplify the expression (-3)4 81 -81 -12 12 I think it is -12
*September 18, 2015*

**math**

Which of these numbers is irrational? check mark sign 3 0.25 1/5 check mark sign 9 I think it is the first one
*September 18, 2015*

**Math**

Find the LCD of 3/5 and 1/6. 5 6 11 30 I believe it is 30
*September 14, 2015*

**Math**

Subtract the fraction and write our answer in lowest terms 4/5 -3/8 1/40 1 17/40 7/10 19/45 I think it is 1/40
*September 14, 2015*

**math**

what is the difference between [-3] and -3? I thing [-3]is double?
*September 8, 2015*

**algebraic expression**

Thanks for the help and I believe this is as simplified as I know. If there is something I am missing please tell me.
*September 8, 2015*

**algebraid expression**

I mean 90 I think I should leave it off because expression do not have a = right
*September 8, 2015*

**algebraid expression**

Do I leave the last line off or change it 9x9+9=9
*September 8, 2015*

**algebraid expression**

9 * (7 - 4)^2 +9 I think it is 9 *(3) ^2 +9 9 x 9 + 9 =81 I hope I got this right. I am trying
*September 8, 2015*

**math**

had it wrong -6z=72 z is 12 sorry I mixed to questions the first time
*September 1, 2015*

**math**

-6z=12 I think it is z=12
*September 1, 2015*

**math**

explain how to solve 82 +9(12 divided 3.2) -7 I thing 8x2=16 + 9=25 12 divided 3 x 2 -7 =1 25 + 1 =26
*September 1, 2015*

**math**

What is solution 5q =-75? I think it is -15
*September 1, 2015*

**math**

What symbol is needed between -2 and [-3] to make a true statement>
*August 26, 2015*

**math**

What is the solution to 40 +-11? I think it is 51
*August 24, 2015*

**Math**

What is the value of -27-8? I think it is -19
*August 24, 2015*

**Math**

The opposite of -4 is? I believe it is 4.
*August 21, 2015*

**Math**

Simplify 2 +(5x4+3). I believe the answer is 25
*August 19, 2015*

**Pre-Calculus**

A local salesman receives a base salary of 675 monthly. He Also receives a commission of 11% on all sales over 1900. How Much would he have to sell in a month if he needed to have a monthly income of 3000? My Work: 1900*.11=209 3000-675=2325 2325/209=11.12440191 1900*11....
*August 14, 2015*

**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*

**math**

where can i find the correct answer
*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*