Sunday

October 4, 2015
Total # Posts: 85,404

**Introd to Stat**

A researcher conducts a test on the effectiveness of a cholesterol treatment on 114 total subjects. Assuming the tails of distributions are normal distribution, is there evidence that the treatment is effective? Cholesterol Decreased No Cholesterol Decrease Total Treatment 38 ...
*August 23, 2015*

**Calculus **

If 2 < or = to f(x) < or = to x^2 + 2 for all x, find the limit of f(x) as it approaches zero.
*August 23, 2015*

**Calculus**

If 2 < or = to f(x) < or = to x^2 + 2 for all x, find the limit of f(x) as it approaches zero.
*August 23, 2015*

**Calculus **

F(x)=(2x-1)/ (|x| -3) Rewrite f(x) as a piecewise function. Then find the limit as it approaches positive infinity and negative infinity.
*August 23, 2015*

**calc**

A car travels along a straight road for 30 seconds starting at time t = 0. Its acceleration in ft/sec2 is given by the linear graph below for the time interval [0, 30]. At t = 0, the velocity of the car is 0 and its position is 10. What is the velocity of the car when t = 6? ...
*August 23, 2015*

**life orientation**

To which bad road use has a direct impacton the physical, emotional, social and economic, Aspects to the family, the community and the country.
*August 23, 2015*

**Life Orientation**

Land pollution air pollution climate change and water pollution by lungelo zondo at nonpoma in hambangendlela high school
*August 23, 2015*

**Life Orientation**

1
*August 23, 2015*

**calculus: don't even no where to start from need help plz**

2X+4x =6x
*August 23, 2015*

**Calculus **

Find the limit as it approaches zero. ( f( x + change in x) - f(x) )/ change in x given f(x)=2x-5. ( change in x = triangle x)
*August 23, 2015*

**Calculus **

Graph the function f(x)= x sin( 1/x) and the equations y=|x| and y=-|x| in the same viewing window on your calculator. Then use the squeeze therom to find the limit of f(x) as it approaches zero. I graphed the function and equations, but I am confused on how to find the limit ...
*August 23, 2015*

**Math**

Sorry it was: √2x/9.81= √(300+x)^2+60^2/150
*August 22, 2015*

**Math**

Find x √2x/9.81= √(300+h)^2+60^2/150 Thankyou!
*August 22, 2015*

**Physics**

A clown at a birthday party has brought along a helium cylinder, with which he intends to fill balloons. When full, each balloon contains 0.00280 m3 of helium at an absolute pressure of 1.20 x 105 Pa. The cylinder contains helium at an absolute pressure of 2.90 x 107 Pa and ...
*August 22, 2015*

**math**

156.1 is 70% of what number?
*August 22, 2015*

**calc**

The velocity of a particle moving along the x-axis is v(t) = t2 – 2t, with t measured in minutes and v(t) measured in feet per minute. To the nearest foot find the total distance travelled by the particle from t = 0 to t = 3 minutes..
*August 22, 2015*

**Physics**

In a house the temperature at the surface of a window is 22.3 °C. The temperature outside at the window surface is 2.82 °C. Heat is lost through the window via conduction, and the heat lost per second has a certain value. The temperature outside begins to fall, while ...
*August 22, 2015*

**physics**

two small kids weighing 10kg and 15kg are trying to balance on a seesaw of total length 5 m with the fulcrum at the centre. if one of the kids is sitting at an end where should the other sit?
*August 22, 2015*

**Math**

nope, try c.
*August 21, 2015*

**Physics**

energy is proportional to temp to the forth power. fourth root of 81 3^4=81
*August 21, 2015*

**Physics**

The Kelvin temperature of an object is T1 and the object radiates a certain amount of energy per second. The Kelvin temperature of the object is then increased to T2, and the object radiates 81 times as much energy per second as it radiated at the lower temperature. What is ...
*August 21, 2015*

**Math**

50% Rule: The repackaged vial or unit dose must have an expiration date placed on it; but it is not the same expiration date as what is on the stock bottle. You must take the date on the stock bottle and write the half way date between today’s date and the expiration date...
*August 21, 2015*

**Math**

Sammy has fifty coins in his pocket that add up to one dollar. how many coins of each denomination are in sammy's pocket?
*August 21, 2015*

**Geography**

1. Piedmont and Blue ridge 2. Costalplain and Piedmont
*August 21, 2015*

**Geography**

the fall line divides which two physiographic regions
*August 21, 2015*

**Physics**

A man can swim in still water at a speed of 3km/hr.He wants to cross the river that flows at 2km/hr and reach the point directly opposite to his starting Point.find the angle if his body makes with the river flow.
*August 21, 2015*

**Geography**

Thanks
*August 21, 2015*

**Geography**

in 3-5 sentences, provide brief description of the Okefenokee Swamp, its creation as a national wildlife refuge, and its importance for biological diversity in the state.
*August 21, 2015*

**Integration**

think of it as (x-)^(-1/2) looks like (2x-1)^(1/2) + c or sqrt(2x-1) + c to me
*August 21, 2015*

**Math- Need Help**

You apparently multiplied the first equation by 3 and the 2nd by 4. Your first should have been 15x + 12y = 15 and then 16x + 12y = 20 subtract them x = 5 back into the first: 5x+4y=5 25+4y=5 4y = -20 y = -5 your line of 31x/31= 38/31 makes no sense. Looks like you added the ...
*August 21, 2015*

**llinear programming**

Mountain Laurel Vineyards produces three kinds of wineMountain Blanc, Mountain Red, and Mountain Blush. The company has 17 tons of grapes available to produce wine this season. Acask of Blanc requires 0.21 tons of grapes, a cask of Red requires 0.24 tons, and a cask of Blush ...
*August 21, 2015*

**Algebra 1**

Your cousin is eight years older than your brother three years ago your cousin was twice as old as your brother how old is your cousin now how old is your brother now
*August 21, 2015*

**math**

Water is poured into a right circular cone with a height of 10 cm and diameter of 8 cm until it is three-fourths full. All this water is then poured into an empty cylindrical container with a radius of 5 cm and height of 9 cm. What is the height of the water in the cylinder?
*August 20, 2015*

**Thematic poetry**

Which definition below best describes the definition of theme within poetry
*August 20, 2015*

**Math**

-3 * 1/4
*August 20, 2015*

**math**

Is (x+y)2 equal to (x2+y2)? Explain why or why not using an example to support your answer.
*August 20, 2015*

**Science**

In a scientific experiment, facts, figures, and other evidence gathered through observations are called? A. Data(?) B. Manipulated Variables C. Responding Variables D. Laws
*August 20, 2015*

**The Chemistry of Life Quiz // Just Answers please**

did you figure out if they were right or not?? I have the same answers but I'm afraid I'm wrong.
*August 20, 2015*

**Math**

The present ages of a man and his wife are as 6:4. Five years ago their ages were in the ratio 5:3. What is the age gap of the couple?
*August 20, 2015*

**science**

I need help with an acrostic poems or name fororn for lab sa
*August 20, 2015*

**algebra**

Slope-intercept form y = mx + b (y-y1)/(x-x1) = (y2-y1)/(x2-x1) m = (y2-y1)/(x2-x1)
*August 20, 2015*

**database**

ERD of _ A patient can make many appointments with one or more doctors in the clinic, and a doctor can accept appointments with many patients. However, each appointment is made with only one doctor and one patient. _ Emergency cases do not require an appointment. However, for ...
*August 20, 2015*

**Math**

14-2.6+9
*August 20, 2015*

**Mathematics**

A company manufactures two products X and Y by means of two processes A and B. The maximum capacity of process A is 1750 hours and of process B 4000 hours. Each unit of product X requires 3 hours in A and 2 hours in B, while each unit of product Y requires 1 hour in A and 4 in...
*August 19, 2015*

**Calculus **

(3x |x-2|) / x-2 What is the limit as x approaches 2 from the left side?
*August 19, 2015*

**math**

ek sankhya a b se 40% kam hai b a se kitne pratisat adhik hai
*August 19, 2015*

**crj220**

Taking what appears to be moral behavior and explaining it instead in terms of self-interest is a strategy known as
*August 19, 2015*

**Calculus **

(2x + sin x)/x What is the limit as x approaches zero?
*August 19, 2015*

**Algebra 2**

A store has sales of $500 in their first month. If sales increase at a rate of $10 each month, they can be modeled by this equation: es002-1.jpg Use summation notation to model and evaluate the sales for the first ten years. Explain your steps.
*August 19, 2015*

**Math **

Raquel is mowing her rectangular lawn. The area of her lawn is 800 sq.ft The width of her yard is twice as long as the length of the yard. How wide is her yard? How long is her yard?
*August 19, 2015*

**Physics**

5. A skier wearing a fully-body ski suit of surface area 1.8 m2 is losing heat by convective and radiation processes off the surface of the ski suit at a rate of 95 W. Given that the suit is filled with goose down 15 mm thick with a thermal conductivity of 0.025 Wm−1K&#...
*August 19, 2015*

**Physics**

A concert hall of volume 2000 m3 contains air at a temperature of 25 ◦C and relative humidity 80 %. Given that the density of water vapour in saturated air at 25 ◦C is 22.8 g/m3 and that the temperature and pressure of the concert hall remain constant what mass of...
*August 19, 2015*

**Linear Systems and Statistics**

A camera store sells 40 pairs of binoculars per week on average with a standard deviation of 6. What is the probability that the store will sell more than 52 pairs binoculars in any week? 8.28% 3.57% 7.24% 2.28% 4.55%
*August 19, 2015*

**Math**

NVM its the 3rd choice i got it!!
*August 19, 2015*

**Math**

The mass of Pluto is approximately 1 × 1022 kg, while the mass of Neptune is approximately 1 × 1026 kg. Which of the following is true? The mass of Pluto is approximately one thousand times that of Neptune. The mass of Neptune is approximately one thousand times ...
*August 19, 2015*

**Math **

(05.01)A scale drawing of a living room is shown below: A rectangle is shown. The length of the rectangle is labeled 3 inches. The width of the rectangle is labeled 5.5 inches. The scale is 1 to 30. What is the area of the actual living room in square feet? Round your answer ...
*August 19, 2015*

**Physics**

A bird watcher meanders through the woods, walking 1.07 km due east, 0.533 km due south, and 4.62 km in a direction 50.1 ° north of west. The time required for this trip is 1.451 h. Determine the magnitudes of the bird watcher's (a) displacement and (b) average velocity.
*August 19, 2015*

**physics**

A boy runs 10.3 blocks North, 6.1 blocks Northeast, and 5 blocks West. Determine the length of the displacement vector that goes from the starting point to his final position. Determine the direction of the displacement vector. Use counterclockwise as the positive angular ...
*August 18, 2015*

**Math dimensional anaylsis**

3 ft= 1yd 9*3= 27ft 1hr=60min 3hr=180min 27ft/180min simplify 3ft/20min
*August 18, 2015*

**Environmental Conservation**

Pay attention in Geography 121 and you would know
*August 18, 2015*

**cp biology**

like how u help otheRS?
*August 18, 2015*

**introduction to computers**

you need to install an operating system on a computer that will be sharing files for the company employees. You estimate there eill be as many as 15 users accessing these files at one time. Which operating system is ideally suited for this machine?
*August 18, 2015*

**english plz plz help**

It's d,c,b,c,a,b I just took it and got 100%
*August 18, 2015*

**introduction to computers**

how do you access the context menu for a desktop or a file in windows explorer
*August 18, 2015*

**Algebra**

y=(x^2 + 2)/ (3x^2 - 5) Is the asymptote at x= sqrt. 5/3 y=o
*August 18, 2015*

**Algebra**

Simplify: ∜(8/9a^3) The answer key says 648/(a^3)^(1/4). ??????????
*August 18, 2015*

**Physics**

How Much Work Is Done Against Gravity In Sliding A 500g Object Through 2m Up A Smooth Plane That Is Inclined 30degree To The Horizontal(g=9.8)
*August 18, 2015*

**physics**

An airplane passenger has 150 ml of air in his stomach just before the plane takes off from a sea level airport where the pressure is 1 atm. What volume will this air have at a cruising altitude where the pressure in the man’s stomach has equalized with the cabin pressure...
*August 17, 2015*

**Algebra**

Simplify. (8/9a^3)^(1/4)
*August 17, 2015*

**math**

If the angles of a triangle arc in the ratio of 5:6:7, the triangle is Acute Obtuse Right Isosceles Equilateral
*August 17, 2015*

**PHYSICS**

A hypothetical planet has a mass 1.49 times that of Earth, but the same radius. What is g near its surface?
*August 17, 2015*

**math**

Find the length of the line segment joining the points whose coordinates are (-3,1) and (5,-5)
*August 17, 2015*

**chemistry**

Ethane burns in limited supply of air to give carbon monoxide. What would be the balanced equation for it?
*August 17, 2015*

**Geography**

Thanks
*August 17, 2015*

**Geography**

Which of the following rivers drains into the Atlantic and provides a major international port for Georgia? 1. Flint 2. Cossa 3. Altamaha 4. Savannah
*August 17, 2015*

**english MS.sue help please**

last one An abstract noun names a(n) place thing idea **** am i right
*August 17, 2015*

**english MS.sue help please**

In a short story, the problem that moves the action of the story forward is known as the them conflict *** protagonist am i right
*August 17, 2015*

**english MS.sue help please**

Which of these is a compound noun? flashlight*** birds butter am i right
*August 17, 2015*

**english**

idea then???
*August 17, 2015*

**english**

An abstract noun names a(n) place **** MY ANSWER thing idea
*August 17, 2015*

**Algebra**

Please check this. f(x)= 1/(x-1)^2 - 5 D= all real numbers, x does not equal to -5 R= all real numbers, y does not equal to 1
*August 17, 2015*

**math**

if 22, 73 ,36,26,51 were selected from 1-90 next selection will be what numbers
*August 17, 2015*

**physical science**

the elevators in the landmark tower yokohama japan are among the fastest in the world. they accelerate upward at 3.125 m/s2 for 4.0 seconds to reach their final speed. if these elevators start at rest what is their final speed?
*August 17, 2015*

**uniuyo**

The second and fifth term of a geometric progression are 21 and 567 respectively. Find the first term and the common ratio of the progression
*August 17, 2015*

**CHEMISTRY**

ARRANGE THE FOLLOWING 0.1 M SOLUTIONS IN ORDER OF INCREASING PH
*August 17, 2015*

**Statistics**

dfccfb
*August 17, 2015*

**physics**

a simple pendulum is suspended from the roots of a carriage if the carriage starts moving with an acceleration a ,then in eqilibrium the pendulum makes an angle theta with the vertical given by
*August 17, 2015*

**Math**

I am a four digit number, I am between 2,000 and 3,000 the digit in the ones place is four times as much as the digit in the thousands place. Only one of the digits are the same. The digit in the tens place is one more than the digit in the hundreds place. All of the digits ...
*August 17, 2015*

**Life sciences**

Refilwe tshabalala morries high
*August 17, 2015*

**answer**

Suppose Meagan needs to drive the truck 10 miles to her new home. a) What is the cost of using Truck A? b) What is the cost of using Truck B?
*August 17, 2015*

**Physics**

During an all-night cram session, a student heats up a 0.332 liter (0.332 x 10- 3 m3) glass (Pyrex) beaker of cold coffee. Initially, the temperature is 19.0 °C, and the beaker is filled to the brim. A short time later when the student returns, the temperature has risen ...
*August 16, 2015*

**Physics**

During an all-night cram session, a student heats up a 0.332 liter (0.332 x 10- 3 m3) glass (Pyrex) beaker of cold coffee. Initially, the temperature is 19.0 °C, and the beaker is filled to the brim. A short time later when the student returns, the temperature has risen to...
*August 16, 2015*

**language arts**

E
*August 16, 2015*

**Physics**

Neutron stars consist only of neutrons and have unbelievably high densities. A typical mass and radius for a neutron star might be 8.1 x 1028 kg and 1.7 x 103 m. (a) Find the density of such a star. (b) If a dime (V = 2.0 x 10-7 m3) were made from this material, how much would...
*August 16, 2015*