Wednesday
September 2, 2015

Posts by Julie


Total # Posts: 1,024

Physics
A puck of mass m = 1.10 kg slides in a circle of radius r = 24.0 cm on a frictionless table while attached to a hanging cylinder of mass M = 3.00 kg by a cord through a hole in the table. What speed (in m/s) keeps the cylinder at rest?
October 2, 2011

math
isnt it greater than 50?
September 28, 2011

math
Chris travels for a certain length of time at 40 miles per hour and Donny travels for the same length of time at 60 miles per hour. what is the average speed?
September 28, 2011

Science
Why is 100g of water and 1000g of water the same density?
September 27, 2011

earth
Find the ratio of the gravitational attraction between (a)a man of mass 100 kg and a woman of mass 50 kg who is 10 meters away from him and (b) the attraction between the woman and the Earth.
September 26, 2011

nursing
How do decision theory, probability theory, inference, and generalization relate to data analysis?
September 23, 2011

nursing
How do mean, median, mode, and standard deviation differ from one another? Support your answers with specific examples
September 22, 2011

nursing
What is the nurse’s role in data collection, patient privacy, and ethical treatment of human subjects?
September 22, 2011

Word Problem
A UPS employee, Davis, packs and labels three types of packages: basic packages, business packages, and oversized packages. Business packages take a priority over basic packages, and oversized packages because those customers paid a premium to have guaranteed two-day delivery...
September 12, 2011

Math
Eggplants in Thailand are 1.24 baht per kilogram, where one dollar is worth 1.37 baht. What is the price of eggplants in dollars per pound?
September 11, 2011

chemistry
How many milliliters of 1.4 M HCl must be transfered from a reagent bottle to provide 23 g HCl for a reaction? Answer in units of mL
September 11, 2011

statistics
MEAN=80,SD=10, S=8, N=25 E(M)= SE(M)=
September 9, 2011

math
I need help multiply these 3 factors. (x+3)(x-3)(x-2)
September 3, 2011

chemistry
If there are 2.0 grams in 1 meter of copper wire, how many centimeters would be needed to provide .28 grams of copper?
September 2, 2011

math
if sue delivers 126 papers in a week but she delivers twice as many on saturday and sunday then how many does she deliver on sunday
August 25, 2011

MATH
Find the area of the parallelogram with vertices at...? (-6,-4), (0,-4), (3,4), and (-3,4) A) 14 B) 48 C) 24 D) PLEASE HELP A.S.A.P., beggers can't be choosers but maybe an explanation?
August 11, 2011

English
This questions can be asking many different things so hopefully this it what you are wanting.... If you are wanting to know the type of sentence it is a simile. If you wanting to know which part of the sentence makes it "Rhetorical sentence" I am 99% sure it is: (The...
August 11, 2011

math
The sinusoid y=3cos(x+3)-2 has which of the following? a. phase shift of 3 to the right b. phase shift of 3 to the left c. vertical shift up of 2 d. horizontal stretch by factor of 3
August 4, 2011

college algebra
e^(-3-x)+22=0 e^(-3-x)=22 ln(e^(-3-x))=ln(22) -3-x=ln(22) -x=ln22+3 x=-(ln(22)+3) x=-6.091
July 25, 2011

college algebra
Horizontal asymptotes occur when the numerator is equal to 0, vertical when denominator is equal to 0 therefore, in this problem, both asymptotes are 0.
July 25, 2011

Algebra
The negative sign is misplaced, and must go before the 6x instead of the 5, making the correct factor: 7x(4x^2-6x+5)
July 25, 2011

madical
You’re reviewing reimbursement for a Medicare surgical craniotomy case. The case falls into a DRG1. Which has a relative weight of 3.0970 and a geometric mean length of stay of 6.3. The hospital’s current standard reimbursement rate is $1500. Calculate the DRG ...
July 24, 2011

Calculus
A stone is dropped from the edge of a roof, and hits the ground with a velocity of -145 feet per second. How high (in feet) is the roof
July 22, 2011

Calculus
The circumference of a sphere was measured to be 74.000 cm with a possible error of 0.50000 cm. Use linear approximation to estimate the maximum error in the calculated surface area
July 20, 2011

GRAMMAR - MT
Perforation of the tympantic membrane was beleived to be the cause of the patient's vertigoe and myringitis.
July 16, 2011

math
when you cross multiply how do you get 36y?
July 10, 2011

Juvenile Delinquency
Do people really change or do they stay the same but appear to be different because their life circumstances have changed?
July 7, 2011

economics- free trade.
What are the advantages and disadvantages of free trade?
July 5, 2011

Algebra
In a paragraph, describe how to simplify this expression ã100
June 15, 2011

Physics
A golf ball is given an initial speed of 20 m/s and returns to ground level. Which launch angle above level ground results in the ball traveling the greatest horizontal distance? Neglect friction. 1. 60 degrees 2. 45 3. 30 4. 15 The answer is 45 but I was wondering how to get ...
June 15, 2011

Physics
Also: Given that A+B+C=0, find the magnitudes of A and B.
June 12, 2011

Physics
Vector A points in the negative direction. Vector B points at an angle of 35.0 above the positive x axis. Vector has a magnitude of 10 and points in a direction 46.0 below the positive x axis.
June 12, 2011

Algebra please help
f(x)=1/3(x+7)^2+4 find the vertex,the line of symmetry, and the max or min. value of the f(x) graph the function. thank you in advance :)
June 8, 2011

world geography
What are the "many islands" people also called?
June 5, 2011

probability and statistics I NEED HELP
A six-sided die is rolled 20 times and a 5 is rolled 9 times. a) State a null and alternative hypothesis for the die being fair. b) Can the null hypothesis be rejected at the .01 significance level?
May 31, 2011

Algebra
w^4-6w^2-2=0 what is the solution?
May 24, 2011

Algebra
-7 and -4 the quadratic equation is? Thank you in advance :)
May 24, 2011

Chemistry (PLEASE HELP)
thanks, now do u know the units to this problem
May 23, 2011

Chemistry (PLEASE HELP)
How much energy (in joules) is contained in one mole of photons (electromagnetic quanta) of frequency 2.3E+19 Hz?
May 23, 2011

algebra
Write an algebraic expression for the following: If James spends 5/6 of his weekly allowance (x) on a movie, how much will James have left?
May 23, 2011

Criminal justice
why does the system require that everyone is entitled to a fair trail, even if the person is caught red-handed
May 22, 2011

Chemistry-Help Please!
@ 20 Celsius - 22g CuSO4 / 100g H2O @ 40 Celsius- 42g CuSO4 / 100g H2O Using this, answer whether these are saturated or unsaturated @ 40 Celsius is 5g CuSO4 / 10g H2O @ 40 Celsius is 99g CuSO4 / 250g H2) I was told that the first one is unsaturated and the second one is ...
May 19, 2011

Chemistry
Can anyone tell me if I am right on these? Calculate the amount of solute needed to make each of the solutions 225g of 10% (m/m) K2CO3 solution Answer: 22.5g K2CO3 0.50kg of 18% (m/m) KOH solution Answer: 90g KOH
May 19, 2011

Chemistry
@ 20 Celsius - 22g CuSO4 / 100g H2O @ 40 Celsius- 42g CuSO4 / 100g H2O Using this, answer whether these are saturated or unsaturated @ 40 Celsius is 5g CuSO4 / 10g H2O @ 40 Celsius is 99g CuSO4 / 250g H2) I was told that the first one is unsaturated and the second one is ...
May 19, 2011

math
i mean the balance after the interest is added is $960. how do i figure out the principle and the interest? The rate is 4% and the time is 5 years. Thanks!
May 16, 2011

math
No the balance not the principle. The principle and the interest are the two amounts we don't know. I know if you add the two together you get $960 but I can't figure out to get those two numbers.
May 16, 2011

math
it is a simple interest problem: the balance is $960, the rate is 4% and the length is 5 years -- what is the interest?
May 16, 2011

CRT 205
The following activity helps you sharpen your skills in recognizing deceptive reasoning. The statements below are derived from the viewpoints in this chapter. Beside each one, mark the letter of the type of deceptive appeal being used. More than one type of tactic may be ...
May 15, 2011

thank you mathmate
Thank you for your help
May 14, 2011

Algebra
what is the square root of 12x^3y^2
May 14, 2011

vocab
poverty, paintings, interests
May 9, 2011

Chemistry
This should be saturated When you divide 22g CuSO4 per 100 g H20 by 4. You get 5.5g of CuSO4 per 25g H2O. Does this help?
May 4, 2011

chappell
what is the lattice method for 2 times 46
May 2, 2011

algebra
a jeweler purchased 5 oz of a gold alloy and 20 oz of a silver alloy for a total cost of $540. The next day at the same price per ounce, the jeweler purchased 4 oz of th egold alloy and 25 oz of the silver alloy for a total cost of $450. Find the cost per ounce of the gold and...
April 29, 2011

Chemistry
I got 3.39%, correct? Thanks
April 29, 2011

Chemistry
A lab assistant prepared a potassium chloride solution for her class by dissolving 5.34 g of KCl in 152g of water. What is the mass percent of the solution she prepared? Could you help me set this up/show me how to do this problem?
April 29, 2011

Probability
Factories A and B produce computers. Factory A produces 2 times as many computers as factory B. The probability that an item produced by factory A is defective is 0.012 and the probability that an item produced by factory B is defective is 0.04. A computer is selected at ...
April 26, 2011

Math
If a pro basketball player has a vertical leap of about 35 inches, what is his hang time? Use the hang-time function V = 48T²
April 24, 2011

Chemistry
Of helium and argon, which will have the higher boiling point and why?
April 20, 2011

Spanish
A mis amigas no ___ comer papas fritas.
April 18, 2011

english - text commentary "Painful case"
Hello, I'm french student and I must to make a text commentary and I need your help finding some idea to develop. It's an extract from "Painful case" by James Joyce Thank you! When he gained the crest of the Magazine Hill he halted and looked along the river ...
April 12, 2011

social studies
What are the pros and cons of textbook social studies learning?
April 10, 2011

physics
just kidding i figured it out.
April 7, 2011

physics
A beam of light is incident from air on the surface of a liquid. If the angle of incidence is 25.0° and the angle of refraction is 14.0°, find the critical angle for the liquid when surrounded by air. im not sure how to start this problem.
April 7, 2011

physics
A convex mirror has a focal length of 19.0 cm. Determine the object location for which the image will be one-fourth as tall as the object. i really need help on this one. im completely stuck!
April 6, 2011

physics
A convex mirror has a focal length of 19.0 cm. Determine the object location for which the image will be one-fourth as tall as the object. i know that 1/f=1/do=1/di. when i put the numbers into the equation i keep getting 23.75 and its saying that its wrong. can you please ...
April 6, 2011

social studies
What are the pros and cons of textbook social studies learning?
April 5, 2011

statistics
Start with x = 100 and add four x values to make a sample of five data such that: a. s = 0 b. 0 < s < 1 c. 5 < s < 10 d. 20 < s < 30
April 5, 2011

Calculus
Find the area of the region enclosed by the inner loop of the curve. r = 5 + 10sin(θ) Any help would be greatly appreciated!!!
April 4, 2011

Calculus II
Find the area of the region enclosed by the inner loop of the curve. r = 5 + 10sin(θ) Thanks for the help!
April 3, 2011

math
12x^4 _______ 42x
March 30, 2011

Algebra
Choose the correct simplification of (3xy6)2(y3)3.
March 20, 2011

physics
A small motor draws a current of 1.76 A from a 110 V line. The output power of the motor is 0.20 hp. (a) At a rate of $0.060/kWh, what is the cost, in cents, of operating the motor for 4.0 h? (b) What is the efficiency of the motor? for (a) i am doing IV*hours*price and its ...
March 14, 2011

math
Turn 7 21 into a percent and decimal. First simplify the fraction. Show your answer on the number line.
March 9, 2011

4th grade math
Aaron's family is driving 80 miles to the mountains. They have already traveled 30 miles. They are traveling at a speed of 50 miles per hour. How many hours will it take them to complete the trip?
March 7, 2011

calculas
how long will it take an ice cube to melt completely? You left out an ice cube ant 1/4 of it melts in 1 hour. Use the following steps to find out how long it will take before it is melted completely. 1-let s represent the side length of the ice cube, and observe that s is a ...
March 6, 2011

algebra
3 index square root 81 I got the answer 3 3index square root 3 is this correct?
February 28, 2011

Algebra
square root xyz cubed.
February 28, 2011

math
Solve for x: log3(x^2-4)-log3(x+2)=2
February 27, 2011

Math
A room is in the shape of a right triangle. The hypotenuse is 8 meters longer than the short leg and the long leg is 4 meters longer than the short leg. Find the length of each side. (ok, now how can it be done if I change each side to cm and km, then ft and yards?)
February 21, 2011

business statistics
The scores on a standardized exam are normally distributed with mean= 50 and variance=16. (a) what percentage of the scores exceed 58? (b) what percentage of the scores lie between 38 and 54? (c) what is the 84th percentile of the distribution?
February 20, 2011

algebra
(x+3)/(x^2-x-12) + (2/x + 3)= (1)/(x-4)
February 20, 2011

algebra
(x+3)/(x^2-x-12) + (2/x + 3)= (1)/(x-4)
February 20, 2011

algebra
(x+3)/(x^2-x-12) + (2/x + 3)= (1)/(x-4)
February 20, 2011

algebra
Factor the Following: 3x^2 + 10xy + 7y^2
February 20, 2011

algebra
This is how the problem looks: (x+3)/(x^2-x-12) + (2/x + 3)= (1)/(x-4)
February 19, 2011

algebra
x+3/x^-x-12 + 2/x+3 = 1/x-4
February 19, 2011

algebra
2/5 - 1/3 Top of complex fraction 2/3 - 3/4 Bottom of complex fraction
February 19, 2011

algebra
whoops x+6/27 = 1/x
February 19, 2011

algebra
x=6/27 = 1/x
February 19, 2011

Algebra
8x^3 + 1728
February 19, 2011

Algebra
-11^-3
February 19, 2011

Algebra
(4y^2)^5 __________ y ^-3
February 19, 2011

algebra
Find the equation of the line that passes through the points ( 8, - 15 )and(-2,5). write the equation in y=mx = b form.
February 19, 2011

algebra
Solve: x-2y= -5 2x+y= -5
February 19, 2011

Algebra
The resistance in an electric circuit varies inversely with the current. If the resistance is 12 ohms when the current is 4 amps, what is the resistance when the current is 8 amps.?
February 19, 2011

Algebra
3 is supposed to be the denominator of 2 6 is supposed to be the denominator of 5
February 19, 2011

Algebra
Complex Fractions _1_ - _2_ x^2 3 ____________ _1_ - _5_ x 6
February 19, 2011

Algebra
_x+6___ = _1_ 27 x is this where I cross multiply?
February 19, 2011

algebra
_2__ = ____2___ x-9 x^2-6x-27 Solve the equations Check solutions to the equations (plug the answer back into the original equation.)
February 19, 2011

  1. Pages:
  2. <<Prev
  3. 1
  4. 2
  5. 3
  6. 4
  7. 5
  8. 6
  9. 7
  10. 8
  11. 9
  12. 10
  13. 11
  14. Next>>

Members