Friday
August 28, 2015

# Posts by Scott

Total # Posts: 586

melanie
What is the average (arithmetic mean) value of the integers from -50 to 50, inclusive? a. -51/2 b. -25 c. 0 d. 25 e. 51/2
September 2, 2011

math
if x = 6 + y and y = -z/3, what does x equal in terms of z? a. 3(6+z) b. 3(z-6) c. 6-z/3 d. z/3-6 e. 6+z/3
September 2, 2011

math
Daphne ran a distance of 180 feet. Peter ran a distance of 15 yards. What is the ratio of the distance Daphne ran to the distance Peter ran? (3 feet = 1 yard) a. 4:1 b. 5:1 c. 6:1 d. 12:1 e. 36:1
September 2, 2011

math
thanks anyone! A right prism has a polygonal base with n sides. Each side has a length of 5 in. The altitude of the prism is 20 in. If the base had n+1 sides, each still having a side of length 5 in, by how much, in square inches, would the lateral area of the prism increase ...
August 23, 2011

geometry
Can anyone help me to solve this, please? A right prism has a polygonal base with n sides. Each side has a length of 5 in. The altitude of the prism is 20 in. If the base had n+1 sides, each still having a side of length 5 in, by how much, in square inches, would the lateral ...
August 23, 2011

physics
find the acceleration of a 3 kg mass as it moves with a constant speed of 4 m/s along a circle of radius 2 m.
July 24, 2011

physics
find the bouyant force on a copper obect that displaces 2.8 meters cubed of water
July 24, 2011

Math
simplify (cos4x-cos2x)/(sin4x+sin2x) the answer choices are : cotx, tanx, cotxtanx, or 1
July 11, 2011

finance
How do I mind out the value of this 5 oz, chunk of silver
June 30, 2011

algebra
solve square root of 72x to 3 power divided by 8x
June 26, 2011

Statistics
Which of the following values cannot be a probability? 0.5 0.00 0.85 1.00 1.02
June 8, 2011

Body Structures & Functions
The blood level of the brain gets the messeage and sends a releasing factor for_________ to the ________ gland.
June 1, 2011

Applied Physics
Which is a vector quantity? electric energy electric charge electric power electric field intensity
May 29, 2011

Physics
When a charge of -4 x 10 to the minus 3 coulombs is moved between two points in an electric field, 0.8 joules of work are done on the charge. The potential difference between the two points is 300 V.
May 29, 2011

Math
How do you know if a relation is a function?
May 26, 2011

Statistics
Select the best interpretation of the correlation coefficient r = -.87
May 21, 2011

Statistics
Use the multiple regression equation to predict a persons salary. Assume that the variable A is the number of years of college. Assume that the variable B is the number of years of experience. Suppose the person has 7 years of college and 3 years of experience. What should ...
May 20, 2011

Social Studies
Why do so many Asian countries speak English or French?
May 18, 2011

statistics
what is the critical value of this statistic z=1.64 at 0.05 significance?
May 12, 2011

statistics
what is the critical value of this statistic at 0.05 significance.....z=1.64
May 12, 2011

math
You brought home 1/2 of a can of paint. You then used 2/3 of the paint to cover a table top. What fraction of a full can of paint did you use? We are multiplying fraction but do I multiply 2/3 paint by 1/1 or do I do 1/2 by 2/3
May 2, 2011

trig
find, to the nearest tenth of a meter, the length of the arc intercepted by a central angle of 160 degrees if a radius of the circle in 8 meters long
April 24, 2011

trig
find, to the nearest tenth of an inch, the length of the arc intercepted by a central angle of (4pi)/3 radians if a radius of the circle is 22 inches long
April 24, 2011

Chemistry
625.grams
April 10, 2011

Math
Yes thank you forgot it was talking about diving.
April 7, 2011

Math
During scuba lessons Sue dove 30 feet. Harriet dove 120 feet, and Kathy dove 90 feet. What integers represent these depths? Order the integers from least to greatest. Is it 30, 90, 120 or is there something else I need to do?
April 7, 2011

Math
Write two numbers that have the given absolute value. 4 38 260 4092 I know one is 4 but do not know the second unless it is -4 Do not have no clue can someone explain?
April 6, 2011

math
use n equals 22 over 7 find the area of a circle with a radius of 7
March 31, 2011

Literature
In discussing time, change, and pleasure, Screwtape asserts that "just as we pick out and exaggerate the pleasure of eating to produce gluttony, so we pick out this natural pleasantness of change and twist it into a demand for absolute novelty". Why is the demand for...
March 28, 2011

Literature
Over the course of The Screwtape Letters, the state of the patient's soul fluctuates as he experiences a conversion, doubt, dangerous friendships, war, love, and finally, in death, oneness with God. What major strategies does Screwtape use to tempt the patient into the ...
March 28, 2011

algebra
can anyone help me one this 4x(x-4)-5x(x-3)=0 solve for x
March 27, 2011

Math 117
it is suppose to lok like 4-z over z-2 minus 8z-5 over 2-z equals sorry not really sure how to right mayh problems out using differnt symbols
March 27, 2011

Chemistry
Mr. Bob, I got 0.038119 and it's wrong.
March 22, 2011

Chemistry
A sample of 6.41 grams of NaOH is dissolved into 675 mL of aqueous 0.250 M NaOH (assume no volume change). This solution is then poured into 2.28 gallons of water. (You may assume that the two volumes can be added.) What is the concentration of NaOH in the final solution? ...
March 22, 2011

physics
first you need to determine the volume of the balloon and the internal pressures. Using those you can use archimedes principle to figure out how much water is displaced and therefore the bouyant force. Then you must determine how much the water pressure will cause the balloon ...
March 18, 2011

art
how is the best way to create a celtic artefact from an everyday object
March 2, 2011

math 117
simplify by factoring sqrt1575to the 4th sorry not sure how to type it out right
February 26, 2011

math 117
sorry it suppose to say sqrt18 +sqrt 32=
February 26, 2011

math 117
help solve ã18+ã32=
February 26, 2011

Physics
The rain-soaked shoes of a person may explode if ground current from nearby lightning vaporizes the water. The sudden converse of water to water vapor causes a dramatic expansion that can rip apart shoes. Water has density 1000 kg/m^3 and requires 2256 kJ/kg to be vaporized. ...
February 24, 2011

math
graphing with out an equasion...y=-x
February 22, 2011

Algebra
Alycia's pggy bank has dimes and quarters in it. The numbers of dimes is four less than three times the number of quarters. If the total value of the coins is \$7.85, how many dimes are in the piggy bank?
February 17, 2011

calculus
You work for the silver there is a home with a driveway 2 miles long extending to the house from a nearby highway. the nearest connection box is along the highway but 5 miles from the driveway. it costs the company \$100 per mile to install cable along the highway and \$140 per ...
February 15, 2011

math
Stacy multiplied 5x9 and said the answer was 44. What two patterns could you use to show that her answer is not correct? ...
February 14, 2011

Physics II
When an electron moves from A to B along an electric field line, the electric field does 3.94 x 10^-19 J of work on it. What are the electric potential differences (a) Vb - Va, (b) Vc - Va, and (c) Vc - Vb?
February 13, 2011

College Physics
A point charge of 1.8 uC is at the center of a Gaussian cube 55 cm on edge. What is the net electric flux through the surface? I have no idea where to start with this problem.
February 6, 2011

Physics II w/ Calculus
A point charge of 1.8 uC is at the center of a Gaussian cube 55 cm on edge. What is the net electric flux through the surface? I have no idea where to start with this problem.
February 5, 2011

Physics
A bullet with a mass of mb= 0.05 kg is speeding toward a block of mass m= 10kg. The bullet is moving at vb= 200m/s and the block is at rest. the bullet collides with he block and knocks the block over the edge. the edge is a height h= 0.5m above ground. how far from he edge ...
February 3, 2011

Physics
two cars, one with mass m1=1000kg and the other with mass m2= 4000kg crash in an intersection. Before the crash, car m1 was headed east with a speed of v1i= 25 m/s and the car m2 was headed north with a speed of v2i= 10m/s. After the crash, the cars stick together. what is the...
February 3, 2011

Physics
An athlete swims the length of a 46.0 m pool in 21.0 s and makes the return trip to the starting position in 23.0 s. Determine her average velocities in each of the following below. (Take Δx to be positive when the displacement is in the direction she swims during the ...
February 2, 2011

Math
An executive in an engineering firm earns a monthly salary plus a Christmas bonus of 5300 dollars. If she earns a total of 98700 dollars per year, what is her monthly salary in dollars?
February 1, 2011

Thank you-I knew when I relooked-Two verbs were conjugated in each of the other three and only the first one should have been: example hago was conjugated but not escribo-not both at the same time Thanks again
February 1, 2011

Thanks-I knew the translation-I just wasn't sure which to pick but I figured it out-I know which three of them are wrong, now. Thanks
February 1, 2011

How do I answer this question? ¿Qué haces los lunes a las diez de la mañana? Hago estudio. Hago escribo Escucho a la maestra. Hago miro la televisión.
February 1, 2011

geometry
2 regular hexagonal prisms are similar. The areas of their bases are 25 and 18. The height of th larger prism is 10. What is the volume of the smaller prism?
January 28, 2011

algebra
The force of gravity is inversely proportional to the square of the center of the earth. if you weigh 120 lbs on the surface of the earth, how much would you weigh 250 miles above the surface? (Earth's radius = 4000 miles)
January 27, 2011

math
Rectangle ABCD is 12 inches long and has a perimeter of 54 inches. Rectangle LMNO is similar to rectangle ABCD and is 2.4 feet long. What is the width of the rectangle LMNO?
January 27, 2011

physics
A bb player crouches lowering center of gravity 0.3m. when he jumps, center of gravity reaches 0.9m above normal. A. Calculate velocity when feet left ground. B. Calculate acceleration produced to achieve velocity. C. What force exerted on floor if mass is 110 kg?
January 24, 2011

College Physics II
Identical isolated conducting spheres 1 and 2 have equal charges and are separated by a distance that is large compared with their diameters. The electrostatic force acting on sphere 2 due to sphere 1 is F. Suppose now that a third identical sphere 3, having an insulating ...
January 23, 2011

English
Describe the strategies you have developed to avoid confusing the use of adverbs and adjectives in the future.
January 6, 2011

English
I need help writing a paragraph with five details that are good and five about how to well. Using the words well and good. Example: I like how well the examples are used in our text. It makes me feel better knowing that I am doing better in my homework assignments. The way ...
January 6, 2011

English
Students are often confused about the use of the words good and well in their writing. Write a 100-word to describe five details from her book that are good and five details about the book that are written well.
January 6, 2011

space
what is the difference between the atmosphere on earth and venus
January 3, 2011

Algebra
Samuel's bank has dimes and quarters in it. The number of dimes is four less than three times the number of quarters. If the total value of the coins is \$7.85, how many dimes are in the piggy bank?
December 14, 2010

Algebra
The side of a square equals the length of a rectangle. The width of the rectangle is 4 meters longer than its length. The sum of the areas of the square and the rectangle is 48 square centimeters. Find the side of the square
December 6, 2010

physics
A 10 g particle undergoes Simple Harmonic Motion with an amplitude of 2.0 mm, a maximum acceleration of magnitude 8.0 X 10^3 m/s^2, and an unknown phase constant, theta. What are a.) the period of the motion, b.) the maximum speed of the particle, and c.) the total mechanical ...
November 30, 2010

hum 205
need help w the human experience assignment
November 21, 2010

chemistry
pv/rt=n
November 19, 2010

statistics
Suppose that a department contains 8 men and 20 women. How many ways are there to form a committee with 6 members if it must have strictly more women than men?
November 8, 2010

Physics
So far i got angular velocities at t=2s and t=4s W2 = 3(2)^2-6(2)+4 = 4 rad/s W4 = 3(4)^2-6(4)+4 = 28 rad/s For average angular acceleration i got W2-W1 / T2-T1 = 28-4/4-2 = 12 rad/s^2 But I dont know how to figure out part d and e. Thanks for the help.
November 7, 2010

Physics
The angular position of a point on the rim of a rotating wheel is given by Theta = 4.0t-3t^2+t^3, where theta is in radians and t is in seconds. At t=0, what are (a.) the point's angular position and (b.) its angular velocity? (c.) What is its angular velocity at t=4.0s? ...
November 7, 2010

ALgebra
3x-8 > 2x-1 You first need to get x on one side of the inequality.To do so, subtract the -8 over to the right side of the inequality. 3x > 2x+7 Next, subtract the 2x. x > 7 Therefore, when you plug a number that is 7 or greater into the original equation, the left ...
November 7, 2010

Physics
The angular position of a point on the rim of a rotating wheel is given by Theta = 4.0t-3t^2+t^3, where theta is in radians and t is in seconds. At t=0, what are (a.) the point's angular position and (b.) its angular velocity? (c.) What is its angular velocity at t=4.0s? ...
November 7, 2010

For years, people have thought that there might be life on one of the other planets.
November 3, 2010

Many people are fascinated by outer space. School children learn about our solar system in school. Tv and radio announcers tell us what to watch for in the night sky. They tell us when the planets are brightest and whcih ones we can see with the naked eye. for years, people ...
November 3, 2010

Physics
well, I know a.) is 39.2 J using the equation for elastic potential energy (Delta U = 1/2kx^2). But I am having trouble figuring out b and c and don't know what equations to use.
October 31, 2010

Physics
A block with mass m = 2.00kg is placed against a spring on a frictionless incline with angle (30 degrees). (The block is not attached to the spring.) The spring with spring constant k = 19.6 N/cm, is compressed 20.0 cm and then released. a.) What is the elastic potential ...
October 31, 2010

College Physics
A block with mass m = 2.00kg is placed against a spring on a frictionless incline with angle (30 degrees). (The block is not attached to the spring.) The spring with spring constant k = 19.6 N/cm, is compressed 20.0 cm and then released. a.) What is the elastic potential ...
October 31, 2010

Math
A roofing crew can roof a house in 10 hours. If a second crew was added, the job would take 6 hours. How long would it take the second crew to roof the house alone?
October 20, 2010

physics
An unbanked curve has a radius of curvature of 75m. On a winter day, with snow on the road, the coefficient of static friction between the tires of the car and the road is .23. What is the maximum speed with which the car can safely negotiate the curve?
October 17, 2010

physics
An unbanked curve has a radius of curvature of 75m. On a winter day, with snow on the road, the coefficient of static friction between the tires of the car and the road is .23. What is the maximum speed with which the car can safely negotiate the curve?"
October 17, 2010

math
I have 6 tens and less than 5 ones. What number am I?
October 12, 2010

Stats
There are four major political parties in the country Treon. A public research group is interested in finding out whether there is any relationship between the party that is supported by a citizen of Treon and that citizen's socio-economic status. For the purposes of a ...
October 9, 2010

Stats
a) IHI insurance is interested in determining whether younger drivers (below the age of 25) are more prone to motor accidents than older drivers (25 or older). A random sample of 70 IHI policyholders below the age of 25 were selected and whether they had been in less than 2 (...
October 9, 2010

Accounting
What would you pay for a \$50,000 debenture bond that matures in 15 years and pays \$5,000 a year in interest if you wanted to earn a yield of: (Round computations to 2 decimal places and use the rounded amounts to calculate the final answer. Round the final answer to 2 decimal ...
September 29, 2010

math
Using the formula of Interest equals principle times interest rate times term or I + P x R x T. Since we do not know the interest rate, using algebra, we get this formula to find out the interest rate: R + I/ P x T. So in your case it would be this: R = \$420.00 / \$3,500.00 x 1...
September 23, 2010

Calculus
Evaluate the integral e^x sin4x dx. I know the answer is 1/17 e^x sin4x - 4/17 e^x cos4x + C but I don't know how to solve it out.
September 23, 2010

algebra
how do I write7,375 in expanded form using power of 10 and exponenets
September 16, 2010

College Physics
Thanks a bunch!
September 9, 2010

College Physics
A red car and a green car, identical except for color, move toward each other in adjacent lanes and parallel to an x-axis. At time t=0, the red car is at x sub r = 0 and the green car is at x sub g = 220m. If the red car has a constant velocity of 20km/h, the cars pass each ...
September 9, 2010

Weather & Climate (science)
all are true
September 8, 2010

Weather & Climate (science)
1.) I am guessing an aneroid barometer 2.) mercury barometer
September 8, 2010

Weather & Climate (science)
Sure, what other questions do you have?
September 8, 2010

Physics
A red car and a green car, identical except for color, move toward each other in adjacent lanes and parallel to an x-axis. At time t=0, the red car is at x sub r = 0 and the green car is at x sub g = 220m. If the red car has a constant velocity of 20km/h, the cars pass each ...
September 8, 2010

physics
I have 2 questions: Assuming that water has a density of exactly 1 g/cm3, find the mass of one cubic meter of water in kilograms. Suppose that it takes 10.0 h to drain a container of 5700m3 of water. What is the "mass flow rate," in kilograms per second, of water ...
September 2, 2010

statistics
I do very much appreciate your help. This guides me to where I need to go.
August 9, 2010

statistics
Given a sample size of 38, with sample mean 660.3 and sample standard deviation 95.9 we are to perform the following hypothesis test. Null Hypothesis H0: ƒÊ = 700 Alternative Hypothesis H0: ƒÊ ‚ 700 At significance level 0.05 3. Calculate the ...
August 9, 2010

Calc
Solve the following separable equation. y'=(4x^3-1)/y for y(1)= -3
July 11, 2010

Calc 2
Solve the following separable equation y'=e^2x/4y^3
July 9, 2010

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