Tuesday
January 24, 2017

# Posts by judy

Total # Posts: 333

calculus
The mechanics at lincoln automotive are reboring a 6-in. deep cylinder to fit a new piston. The machine they are using increases the cylinder's radius 0.02 inches each second. How rapidly is the cylinder volume increasing when the bore (diameter) is 3.8 in.?
January 22, 2017

calculus
Melissa wants to make a rectangular box with a square base and cover its top and bottom faces with velvet, which will cost her \$3 per square inch, and the sides with silk, which will cost her \$5 per square inch. The box should have a volume of 1600 cubic inches. Find the ...
January 22, 2017

english
During halftime at the local high school, Felipe noticed a cheerleader crying, the coach yelling, and the fans emptying the stands. need to make sure this is the correct puntuatuiom
January 19, 2017

Algebra
The difference between two numbers is 13. When the greater number is divided by the smaller, the quotient is 2 and the reminder is 5. What are the numbers?
December 23, 2016

Algebra
Electrician charged \$50 a house call and \$65 dollar an hour. The job is 6 hours long Will it be cheaper for him to work 6hrs or 2 3hour jobs?
November 14, 2016

Algebra
Electrician charged \$50 a house call and \$65 dollar an hour. Will it be cheaper for him to work 6hrs or 2 3hour jobs?
November 14, 2016

Science
I need to unscramble these letters to make a phrase rorpsggnloadeeasi
October 6, 2016

Chemistry
Is the flame coloration a test for the metal or for the acid radical?
September 25, 2016

statistics
The weekly study times for all students in a school are normally distributed with μ = 18 hours and σ = 6 hours. If 36 students are randomly selected, find the probability that their mean study time is greater than 20 hours. My work: 20-18/(6/√36)=2/(6/6)=2/1=2...
September 15, 2016

life orientation
ways that the human rights violations influences individuals,groups and south african broader
April 24, 2016

Life orientation
six ways women and girls abuse influence individuals,groups and the broader south Africa.
April 17, 2016

English
As a person in today's society
January 24, 2016

English
Person
January 24, 2016

English
What doors are open to you that may not have been open to generations before us,and why might it be difficult to face these doors
January 24, 2016

math
A rounded number for the speed of an insect is 5.67 per second. What are the fastest and slowest speeds to the thousandths that could round to 5.67 meters per second?
December 6, 2015

Chemistry
How man kilojoules of energy are needed to vaporize a 28.6g sample of liquid benzene at its normal boiling point of 80C?
November 12, 2015

Biology
There are at least 4 different ways that humans have genetic variation, a. Using one of these four ideas explain why you do not look like another person in this room. b. To continue further with this thought use another one of the genetic variation ideas and explain why you ...
October 29, 2015

math
Name 2 digit factors whose product is greater than 200 but less than 600
October 28, 2015

Algebra
A mother takes 48 minutes to mow the lawn when she works alone using a gas mower. Her daughter takes three times as long using a reel mower. How long would it take them to mow the lawn together?
October 20, 2015

Biology
a. A human cell is placed in a container of sugar water. Explain what would occur, if the cell membrane is impermeable to sugar. I know that the water in the cell is the high concentration and will go to the sugar water which is the low concentration. b. Another cell is placed...
October 5, 2015

Algebra 2
Can this expression be factored? 4x^2+9 My homework assignment says to factor completely and this is one of the problems but I don't think this expression can be factored. Am I wrong? If so how do I factor it.
October 2, 2015

f5 math
Mr. Chan buys some flour with \$80. The price of flour is \$x per kg. If the price is increased by \$2 per kg, he will buy 2 kg less than with \$80. Find the value of x.
September 25, 2015

Chemistry
You make a solution using a solute (5g) in water (total volume 100ml). The molar mass of the solute is 110 g/mol. What is the molarity? What is the concentration reported as % by mass?
September 23, 2015

Algebra
-09)+(69)
September 22, 2015

algebra
what is the absolute value of -(33)
August 19, 2015

Math
Find the simple Interest; Principle \$ 300 Rate 6.5% Time 1/2 year
August 9, 2015

Accounting
If a hotel rents a room for \$2500. and there is an advance payment of \$500, how is this posted in the city ledger
July 9, 2015

You provide the manufacturer’s recommended dose of an antibiotic, which is 10mg/kg IV for a 100kg patient. You then draw a level 30 minutes after the dose. Assume rapid distribution and neglible clearance/metabolism over the 30minute period between the time of ...
June 11, 2015

statisic
The current rate of success is 70% for 200 students. When the new test is implemented, the rate increases to 85% for the 50 students who pass the test and are allowed into the program. Is this difference significant?
June 2, 2015

math
how many edges , vertices and faces does a cylinder have? some say 0 edges,0 vertices, and 2 faces but others say 3 faces, 2 edges and 0 vertices. Which is it? thank you.
May 14, 2015

Math
I am not sure what happened but I got the answer .. 153,954 is correct. thanks for the help.
April 3, 2015

Math
Mrs. Hart, at age 65, can expect to live for 25 years. If she can invest at 5% per annum compounded monthly, how much does she need now to guarantee herself \$900 every month for the next 25 years? math - Reiny, Friday, April 3, 2015 at 3:05pm Present Value = 900(1 - 1.0041666...
April 3, 2015

math
Reiny, 153,954.05 is coming up wrong. any suggestions?
April 3, 2015

math
Mrs. Hart, at age 65, can expect to live for 25 years. If she can invest at 5% per annum compounded monthly, how much does she need now to guarantee herself \$900 every month for the next 25 years?
April 3, 2015

Government
is it d
January 5, 2015

accounting
If preferred dividends are limited to the stated rate of dividend, the preferred stock is: A. noncumulative B. Cumulative C. participating D. Nonparticipating
December 2, 2014

Statistics
If a committee of 4 students is selected from a class of 16 students, how many ways can this be done?
November 23, 2014

Physics
Suppose that the swimmer in the figure below has a swimming speed relative to the water of 0.40 m/s, while the speed of the current is 2.2 m/s. If it takes the swimmer 200 s to cross the river, how wide is the river
September 25, 2014

Math
Proportion - If a 30-foot tree cast an 18-foot shadow, find the length of the shadow cast by a 24-foot tree.
September 10, 2014

Math
A club has three different committees each of which needs a chairperson. How many ways can the chair people be selected if only 10 people are eligible for these positions, and no one can chair more than two of the committees
June 6, 2014

Math
Each digit of a four-digit PIN can be any number from 0 to 9. What is the percentage of PINs with no digit repeated more than twice?
June 6, 2014

History
what was true of the secretary of state William henry seward
May 22, 2014

Math
Oh I see. Thank you
May 17, 2014

Math
What does it mean instead of at the top, the power is at the bottum Like instead of 2^4 The 4 is wrote smaller and below and beside the 2
May 17, 2014

Math
Determine the largest possible integer n such that 942! is divisible by 15n.
May 17, 2014

Math
Rationalize the denominator and write your answer in lowest terms (2 √ 6 + √ 3)/ ( √ 6- √ 3)
May 17, 2014

grammar
have you seen my sister, karla, around here?
May 11, 2014

grammar
Question 2. 2. Select the sentence that is punctuated correctly. (Points : 1) The oil from Eucalyptus trees which are native, to Australia is known for its medicinal properties. The oil from Eucalyptus trees, which are native to Australia, is known for its medicinal properties...
May 11, 2014

Math
May 9, 2014

Math
If a circle is inscribed in a triangle with vertex angles 30o - 60o - 90o , then what is the area of the triangle divided by the area of the circle?
May 9, 2014

Math
In a circle whose radius is 13 cm, a central angle intercepts an arc that measures 65o. What is the arc length? Round your answer to the nearest hundredth of a centimeter.
May 9, 2014

Math
The radius of the inscribed circle is 5. If the length of the hypotenuse of the right triangle ABC is 19, what is the perimeter of the triangle?
May 9, 2014

Physics
A cannonball is dropped overboard from a boat. The cannonball sinks toward the bottom of the sea. The mass of the seawater displaced by the cannonball is exactly 2/3 the mass of the cannonball. Find the velocity of the cannonball after 10 seconds after being dropped.
May 7, 2014

Corporate Finance
Bond price: Briar Corp is issuing a 10-year bond with a coupon rate of 7 percent. The interest rate for similar bonds is currently 9 percent. Assuming annual payments, what is the present value of the bond? (Round to the nearest dollar.) \$990 \$872 \$1,066 \$945
April 11, 2014

math
a right triangle has a hypotenuse that is 59 miles long. One side is 1.05 longer than the other. What are the lengths of the two legs
March 27, 2014

chemistry
A sample of gas has a volume of 1.30 L at STP. What is the temperature in °C if the volume is 13.0 L at 2.00 atm?
February 14, 2014

statistics
The height of an adult male is known to be normally distributed with a mean of 69 inches and a standard deviation of 2.5 inches. The height of the doorway is 74 inches. What proportion of adult males will not fit under the door?
February 9, 2014

physics
the barge is like a carrier that is used on rivers to ship things.
February 2, 2014

physics
a crew member is walking on a tugboat that is pulling a barge. the tugboat is moving at a constant speed upstream in a river that has a constant downstream current. In the situation above, what is at rest relative to the tugboat?
February 2, 2014

english
What is a good thesis statement according to the disagreement of gay marriage?
January 29, 2014

algebra
need help with this problem. -(2x-(5x+2)-2+(2x+7)
January 14, 2014

statistics
Assume that thermometer readings are normally distributed with a mean of 0.0 and a standard deviation of 1,00. the thermometer is randomly selected and tested. For the case below, draw a sketch , and find the probability of the reading The given values in Celsius degrees) ...
November 22, 2013

Physics
A hammer is accelerated at 13 rad/s^2 at a radiius of rotation of 1.5 m. the tangential hammer speed is 20 m/s. a)Determine the angular velocity of the hammer b)the magnitude of the radial component of its linear acceleration c)the magnitude of the tangential component of its ...
November 7, 2013

quantum physics
The variance ÏƒX^2=âŸ¨(X^âˆ’âŸ¨X^âŸ©)^2âŸ© of an operator, X^, is a measure of how large a range its possible values are spread over (the standard deviation is given by Ïƒ=sqrt(&...
October 7, 2013

quantum physics
Suppose a particle has wavefunction Ïˆ(x,t=0)=Aexpâˆ’(x^2/2l^2). What is the average value (expectation value) of p^, âŸ¨p^âŸ©, for this state at t=0?
October 7, 2013

quantum physics
Can anyone help me to solve this problem? Suppose we have a particle in 1-dimension, with wavefunction Ae^(-|x|/2d). What is the probability to find the particle in the interval [0,d]? Please provide your answer in terms of A, d, mathematical constants such as π (entered ...
October 7, 2013

quantum physics
Can anyone help me to solve this problem? Suppose we have a particle in 1-dimension, with wavefunction Ae^(âˆ’|x|2d). What is the probability to find the particle in the interval [0,d]? Please provide your answer in terms of A, d, mathematical constants such as...
October 7, 2013

MATH
YANCEY COLLECTS PLASTIC BANKS. HE HAS THREE DIFFERENT BANKS;A PIG,A COW, AND A HORSE. HOW MANY WAYS CAN YANCEY ARRANGE HIS BANKS ON A SHELF
September 30, 2013

lol
During the bitter struggle over reconstruction policy, Congress overrode Johnson's veto of the
September 20, 2013

thank you
September 6, 2013

I have to follow the pattern .125, .25, .375, .5 ?
September 6, 2013

math
What percent of the first 50 positive integers contain no odd digits?
August 20, 2013

Medical Office
As a medical office manager what is a fun slogan or buzzwords that I could use to help my employees to remember the coding process the types of procedures and each three CPT categories?
May 15, 2013

college Chemisrty
at what kelvin temperature will 25.2 of xe occupy a volume of 645 L at pressure of 732 torr?
May 13, 2013

Ethics and social responsibility
You work hard in your office overtime weekends and early mornings.you get paid well but despise that your coworkers are getting paid the same pay for less work then what you are doing and get promoted ahead of you.
May 9, 2013

college Chemistry
What would you expect to be the chemical names of the main gases that were dissolved in the tap water?
May 5, 2013

college Chemistry
Conductivity test, what controls the brightness of the light? (hint: think about your tapwater abd NaCl results and why they were different)
May 5, 2013

College Chemistry
I assume you are looking to predict the solution of the salt. yes Bob
May 5, 2013

College Chemistry
What must we know a given ionic salt to be able to predict whether is is a good or poor conductor, w/o testing its conductivity?
May 5, 2013

Chemistry
one morning you are given 3 test tubes of aqueous solutions of compound X: the "A" tube was set up as unsaturated, while "B" was set up as Saturated in a beaker, then poured of into the tube, and "C" was carefully set up as supersaturated. At ...
May 5, 2013

Chemistry
What must we know a given ionic salt to be able to predict whether is is a good or poor conductor, w/o testing its conductivity?
May 5, 2013

Mathabatha
Ways in which xenophobia impacts in our communities
April 23, 2013

Calculus
2x+18x^-3
April 23, 2013

College Chem
charles law: 7.89 l sample of gas had pressure of 850 torr. what volume will it occupy if the pressure is changed to 457 torr? (torr is a measurement of pressure. 760 torr = 1 atmosphere
April 22, 2013

Chemistry
Need type of reaction and balance of (NH4)2S+CuSO4=
April 22, 2013

Chemistry
(NH4)2S+CuSO4=
April 22, 2013

life orientation
discuss in a paragraph of 150 words way in which flood,earthquake nd drought can takes responsibility to provide safe and healthy living environment
April 18, 2013

College Chemistry
The Water loss by the sample, and the percent by weight of water in the unknown hydrates is 34.78%H2O. which of the ten possible hydrates are the most likely ones to be your unknown based on the percent by weight?
April 7, 2013

Chemistry
The water loss by the sample, and the precent by weight of the water in the unknown hydrates 34.78%H2O. which of the ten possible hydrates are the most likely ones to be your unknown based on the percent by weight?
April 7, 2013

Chenistry
which of the ten possible hydrates are the most likely ones to be your unknown based on the percent by weight?
April 7, 2013

Stats
The scatter diagram of the lengths and widths of the petals of a type of flower is football shaped; the correlation is 0.8. The average petal length is 3.1 cm and the SD is 0.25 cm. The average petal width is 1.8 cm and the SD is 0.2 cm. 1. One of the petals is 0.2 cm wider ...
March 28, 2013

Stats
The scatter diagram of the lengths and widths of the petals of a type of flower is football shaped; the correlation is 0.8. The average petal length is 3.1 cm and the SD is 0.25 cm. The average petal width is 1.8 cm and the SD is 0.2 cm. 1. One of the petals is 0.2 cm wider ...
March 28, 2013

grammar
Is saying "she's sitting in back of me" poor grammar.
March 23, 2013

Eng1511
The writer is the guy who fell in love with this young girl Mimmy who was a tenant with the writers friend is whre he saw Mimmy. She was a young girl who was committed to her studies with regards to the writer en his friend Mimmy would only greet them en go her own way while ...
February 26, 2013

life orientant
Discuss5 ways in which the teenage pregnapregnancy prblem impacts on the comcommunity.provide relevant sources to. Support your claims
February 21, 2013

Physics
A diverging lens has a radius of curvature of 6 cm. A 2 cm high object is placed 5 cm in front of the lens. Find: Si , Di , and draw the situation.
February 20, 2013

1. Pages:
2. 1
3. 2
4. 3
5. 4
6. Next>>