Kg
Most popular questions and responses by Kg
Probability
A husband and wife discover that there is a 10% probability of their passing on a hereditary disease to any child they have. If they plan to have three children, what is the probability of the event that at least one child will inherit the disease?
asked on November 12, 2014 
Math, Please Help!
If 99 people had a mean income of $12,000, how much is the mean income increased by the addition of a single income of $200,000?
asked on November 19, 2014 
Math, Please Help!
Ten years from now Alex's age will be 3 times her present age. Find Alex's age now.
asked on November 6, 2014 
math
In a football game, a touchdown with an extra point is worth 7 points and a field goal is worth 3 points. Suppose that in a game the only scoring done by teams are touchdowns with extra points and field goals. A: Which of the scores 1 to 25 are impossible
asked on September 24, 2014 
Algebra
Explain why you think a sign on a copy machine reading ".05 (cent sign) a copy" is put up by mistake?
asked on October 21, 2014 
physics
In open heart surgery a much smaller amount of energy will defibrillate the heart. (a) What voltage is applied to the 9.00 µF capacitor of a heart defibrillator that stores 45.0 J of energy? kV (b) Find the amount of stored charge. mC
asked on September 30, 2012 
PHYSICS
A bare helium nucleus has two positive charges and a mass of 6.64 1027 kg. (a) Calculate its kinetic energy in joules at 2.00% of the speed of light. J (b) What is this in electron volts? eV (c) What voltage would be needed to obtain this energy? V
asked on September 30, 2012 
Precalculus
A ship is heading due north at 10 mph. The current is flowing southwest at 3 mph. Find the actual bearing and speed of the ship.
asked on December 12, 2017 
Math, Please Help!
At the Out  Rage Benefit Concert, 723 tickets were sold for $3/ student and $5/ non student. The benefit raised $2,815. How many non student tickets were sold?
asked on November 6, 2014 
Math
Every employee's salary at the Sunrise Software Company increases each year by 1/10 of that person's salary the previous year. A: If Martha's present annual salary is $100,000.00, what will her salary be in 2 years? B: If Aaron's present salary is
asked on October 11, 2014 
Algebra: help
A person has 29 1/2 yards of material available to make doll outfits. Each outfit requires 3/4 yard of material. a: How many outfits can be made? b: How much material will be left over?
asked on October 12, 2014 
Algebra
The largest bubble chamber in the world is 15 ft. in diameter and contains 7259 gal of liquid hydrogen at a temperature of 247 degrees Celsius. If the temperature is dropped by 11 degree Celsius per hour for 2 consecutive hours, what is the new
asked on September 29, 2014 
Probability
An assembly line has two inspectors. The probability that the first inspector will miss a defective item is 0.05. If the defective item passes the first inspector, the probability that the second inspector will miss it is 0.01. What is the probability of
asked on November 11, 2014 
PHYSICS
A doubly charged ion is accelerated to an energy of 34.0 keV by the electric field between two parallel conducting plates separated by 2.00 cm. What is the electric field strength between the plates?
asked on September 30, 2012 
Chemistry
How much heat in kilojoules must be removed from a glass of water that contains 100g of water to lower its temperature from 30 C to 15 C?
asked on May 8, 2014 
math
Alba asked why we don't talk about LCM and GCM. How do you answer?
asked on September 22, 2014 
Math, Please Help!
Ryan is building matchstick square sequences, as shown ( first one used 4, second one used 7, third one used 10, and the forth one used 13). He used 599 matchsticks to form the last two figures in his sequences. How many matchsticks did he use in each of
asked on November 6, 2014 
Math help!
The number of students taking sophomore mathematics at Union College has been decreasing at the rate of 20 per year for many years. Assuming this trend continues, write a multiplication problem that describes the change in the number of sophomores taking
asked on October 1, 2014 
math
The greatest recorded temperature ranges in the world are around the "cold pole" in Siberia. Temperatures in Verkhoyansk have varied from 94 degrees Fahrenheit to 98 degrees Fahrenheit. What is the difference between the high and low temperatures in
asked on September 29, 2014 
Algebra, help please!!!
A penny, nickel, dime, and a quarter are tossed. What is the probability of the event of obtaining at least three heads on the tosses?
asked on November 11, 2014 
Please math help
A: I am choosing an integer. I then subtract 10 from the integer, take the opposite of the result, add 3, and find the opposite of the new result. My result is 3. What is the original number? B: Judy wants to do the activity in part (a) with her
asked on September 25, 2014 
Probability.. HELP!
At a certain hospital, 40 patients have lung cancer, 30 patients smoke, and 25 have lung cancer and smoke. Suppose the hospital contains 200 patients. If a patient chosen at random is known to smoke, what is the probability of the event that the patient
asked on November 12, 2014 
Algebra, help please!!!
Fill in the following blanks to find other expressions for 5%: A: ___ for every 100 B: ___ for every 50 C: 1 for every ___ D: 8 for every ___ E: 0.5 for every ___ Please help, very confused by this problem.
asked on October 27, 2014 
Math, Please Help!
If three cards are drawn at random from a standard deck of 52 playing cards, what is the probability that at least one of the cards is a face card: that is, one of the cards is a kind, queen, or jack?
asked on November 10, 2014 
HELP!! Algebra
A student claims that division always makes things smaller so 5 / (1/2) cannot 10 because 10 is greater than the number 5 she started with. How do you respond? I don't understand this question at all!!
asked on October 11, 2014 
Algebra
Jim is starting a new diet. When he arrived home, he ate 1/3 of the half of a pizza that was left from the previous night. The whole pizza contains approximately 2,000 calories. How many calories did Jim consume?
asked on October 9, 2014 
math
A bag contains n cards, each having one of the consecutive numbers (1, 2, 3, 4, .... n) written on it, with each number being used once. The probability of drawing a card with a number less than or equal to 10 is 4/10. How many cards are in the bag?
asked on November 10, 2014 
Algebra
Find the number of ways that 4 flags can be displayed on a flagpole, one above the other, if 10 different flags are available.
asked on November 10, 2014 
Algebra, help please!!!
Find three decimals between each of the following pairs of decimals: A: 4.333333333(repeating 3) and 4.3 B: 203.76(repeating 7,6) and 203.7(repeating 7)
asked on October 27, 2014 
math
how many microseconds are in a minute. A microsecond is one millionth of a second there are 60 seconds in a minute. So 60 times one million is what? or (60)(1,000,000)=? got it thank you so much..
asked on March 27, 2007 
business
what are the simularities and differences between the legal business environments of domestic and international trade?
asked on November 9, 2007 
science
examples of parasitism, mutualism and commensalism in the mojave desert. http://waynesword.palomar.edu/ww0902a.htm http://helios.bto.ed.ac.uk/bto/desbiome/parasite.htm http://wc.pima.edu/~bfiero/tucsonecology/animals/interrelationships.htm thank you! it
asked on January 27, 2007 
math
The position vectors of points A and B with respect to the origin 0, are (8,5) and (12,5) respectively. Point M is the midpoint of B and N is the midpoint of OA. (a) Find: (i) The coordinates of N and M (ii) The magnitude of NM (b) Express vector NM in
asked on October 7, 2013 
criminology
how is criminal behavior explicable according to rational choice theory? It would be helpful if you phrased your questions in regular English and explained your terms. explicable ??? rational choice theory ??? ?? question pertains to the rational choice
asked on March 25, 2007 
Math help!
Miriam is four years older than Ricardo. Ten years ago Miriam was 3 times as old as Ricardo was then. A: How old are they now? B: Determine whether your answer is correct by checking that it satisfies the conditions of the problem.
asked on November 6, 2014 
Math help
Noah says that dividing a number by 2 is the same as multiplying it by 1/2. He wants to know if he is right, and if so, why? How do you respond?
asked on October 11, 2014 
Algebra
In the metric system there are two official temperature scales: degree Celsius and kelvin. The kelvin temperature scale is obtained by shifting the Celsius scale so of any heat whatsoever. An equation about the relationship between the two scales follows:
asked on September 25, 2014 
math
The position vectors of points A and B with respect to the origin 0, are (8,5) and (12,5) respectively. Point M is the midpoint of B and N is the midpoint of OA. (a) Find: (i) The coordinates of N and M (ii) The magnitude of NM (b) Express vector NM in
asked on October 7, 2013 
math
y = ½ x^2 – x +3 for 0≤x≤6 (b) Calculate the mid ordinates for 5 strips between x = 1 and x= 6, and hence use the midordinate rule to approximate the area under the curve between x = 1, x = 6 and the x = axis. (c) assuming that the area determined
asked on September 29, 2013 
Ethics125
Assignment: Hispanic American Diversity Resources: Racial and Ethnic Groups, the University Library, and the Internet Due Date: Day 7 [Individual] forum Write a 1,050 to 1,400word research paper identifying the linguistic, political, social,
asked on October 3, 2009 
math
help!!need an answer 3x+4y=12 (0, ),(2/3, ),(0, ),(2/3, ) anybody? It looks like maybe you are supposed to take the equation 3x + 4y = 12, and solve for the values of y that correspond to given values of x. For example, when x=0, 4y = 12 and y = 3.
asked on June 21, 2007 
criminology
Can someone tell me a policy that is in effect that relates to trait theories? Determine how far sound travels in 55 minutes. Express your answer in feet. You may use 760 mph as the speed of sound.Do I divide,add,subtract or multiply. Check out this site:
asked on May 18, 2007 
Math
find two factors of 28 with the sum of 11. Surely by the time you posted this question, you should have been able to figure out that very simple question. Give it a try!!! Let me know what you came up with. well I think its 7 and 11. I was looking for
asked on March 26, 2007 
religion (please help)
explain what the cultural and societal influences that have made hinduism vital to the region in which it originated. Please tell us what you've learned. We'll be glad to critique your answer and respond to your ideas. ms.sue you should give this student
asked on January 28, 2007 
Probability.. HELP!
Three men were walking down a street talking when they met a fourth man. If the fourth man knew that two of the men always lied and the third always told the truth and he asked the three men a question, what is the probability that he got a truthful answer
asked on November 12, 2014 
Algebra HELP!
On a ruler that measures both metric and English units, we see that 1 m = 39.37 in. This implies that 2 m = 78.74 in. Use this information to write an equation to convert x inches to y meters.
asked on November 4, 2014 
Algebra: help!
Solve for x in each of the following: a: 2/3x = 11/6 b: 3/4 / x = 1/3 c: 5/6  2/3x = 3/4 d: 2x/3 + 1/4 = x/6  1/2 Please help me and explain, I don't get fractions at all!
asked on October 12, 2014 
HELP! Algebra. DONT UNDERSTAND
Factor each of the following expressions completely and then simplify, if possible: a: ax + 2x b: ax  2x c: 3x  4x + 7x d: 3x^2 + xy  x e: (a + b)(c + 1)  (a + b) f: x^2  9y^2 g: (x^2  y^2) + x + y
asked on October 2, 2014 
Math help!
Find the first five terms of the sequence whose nth term is given. a: (2)^n + 2^n b: n^2(1)^n c: 10  n^2
asked on October 1, 2014 
math
Let y= 3x2. Find the value of y (in parts (a)(d)) for each of the following values of x: a: 1 b: 100 c: 2 d: a in terms of a e: For which values of x will y be 11?
asked on October 1, 2014 
Algebra
A class of 23 students was using square tiles to build rectangular shapes. Each student had more than 1 tile and each had a different number of tiles. Each student was able to build only one shape of rectangle. All tiles had to be used to build a rectangle
asked on September 24, 2014 
Math
y = ½ x^2 – x +3 for 1≤x≤6 (b) Calculate the mid ordinates for 5 strips between x = 1 and x= 6, and hence use the midordinate rule to approximate the area under the curve between x = 1, x = 6 and the x = axis. (c) assuming that the area determined
asked on October 3, 2013 
religion
what are the simularites and differences between jesus and muhammed? http://www.answers.com/jesus http://www.answers.com/mohammed Let us know what you come up with, and someone here will be happy to critique your thinking. =) sites for Mohammad and Jesus 
asked on March 4, 2007 
Algebra
Because of a recession, the value of a new house depreciated 10% each year for 3 years in a row. Then, for the next 3 years, the value of the house increased 10% each year. Had the value of the house increased or decreased after 6 years? Explain please!!
asked on October 21, 2014 
Algebra HELP!
Factor each of the following expressions completely and then simplify, if possible: a: ax + 2x b: ax  2x c: 3x  4x + 7x d: 3x^2 + xy  x e: (a + b)(c + 1)  (a + b) f: x^2  9y^2 g: (x^2  y^2) + x + y
asked on October 1, 2014 
Algebra
If x is an integer and x is not equal to zero, which of the following are always positive and which are always negative? a: x to the power of 4 b: (x) power of 4 c: x to the power of 4 d: x e: x
asked on October 1, 2014 
Algebra
Estimate each of the following and then use a calculator to find the actual answer: a: 343+ 42  402 b: 1992 + 3005  497 c: 992  10,003  101 d: 301  1303 + 4993
asked on October 1, 2014 
Algebra
Jill asks each of her classmates to choose a number, then multiply the number by 3, add 2 to the product, multiply the result by 2, and then subtract 14. Finally, each student is asked to divide the result by 6 and record the answer. When Jill gets an
asked on September 25, 2014 
math
Hawaii's lowest temperature on record is 11degrees Celsius. What would you expect to be true about the elevation of the site where this temperature was measured.
asked on September 25, 2014 
math
Bijous I and II start their movies at 7:00 p.m. The movie Bijou I takes 75 min, while the movie Bijou II takes 90 min. If the shows run continuously, when will they start at the same time again?
asked on September 24, 2014 
math
Explain why and when we would need to use LCM and GCD? Share, describe and summarize 4 examples of both.
asked on September 22, 2014 
Math help
Find all whole numbers which: A: 20x=x B: 20x6=0 C: x+4=3+x+1
asked on September 19, 2014 
Math help
There is a center circle with eight circles connected to it. A. Place numbers 24 through 32 so the sums are all the same. B. How many numbers can be placed in the middle to obtain a solution?
asked on September 19, 2014 
Qualitative Analysys
Write a ten to fifteen page paper that summarizes the concepts and 'laws of evolution' in your own words. Think about and give an example of something that evolved using each of the laws. Use the examples on each of the slides to get your thoughts started
asked on August 24, 2014 
math
a framed painting weighs 220 newtons. the 2 wires support an angle of 120 degrees with each other. what are the tensions on the wire?
asked on October 17, 2013 
PHYSICS
Find the capacitance of a parallel plate capacitor having plates of area 1.00 m2 that are separated by 0.400 mm of Teflon.
asked on September 30, 2012 
law
explain the pros and cons of legal moralism. Thank you for using the Jiskha Homework Help Forum. Hopefully something in these sites will help you: 1. http://www.blackwellsynergy.com/doi/abs/10.1111/j.14685930.2005.00302.x 2.
asked on July 27, 2007 
criminology
what are the characteristics of the juvenile court system? We will be happy to critique your thinking. Be careful of generalizations here on fairness, etc. Courts vary very widely on how well the operate. What i am looking for are the general
asked on June 13, 2007 
science/PLEASE HELP
list at least 3 alternative methods for mazimizing food production in benin (africa) pros & cons These sites will help you make your lists. (Broken Link Removed) http://www.foodfirst.org/media/opeds/2000/4greenrev.html
asked on February 6, 2007 
science
In which ways would your lifstyle contribute to soil erosion? http://en.wikipedia.org/wiki/Erosion
asked on February 1, 2007 
science
can anyone detail the simiarities and differences between the terrestrial biome and the aquatic life zone? both are subject to stratification, there are different layers and these layers inhabited by different organisms. for example: canopy in the forest,
asked on January 28, 2007 
science
describe a freshwater or saltwater lifezone within or adjacent to the mojave desert?
asked on January 27, 2007

Math
223
posted on December 12, 2017 
life orientation
Help plz
posted on May 4, 2016 
Math, Please Help!
Thank you, Mrs. Sue. I now understand this type of problem! :)
posted on November 19, 2014 
Algebra HELP!
That's basically what I had for my answer, but I wasn't sure so I wanted to double check. Thank you!
posted on November 4, 2014 
Algebra, help please!!!
How did you get these answers? I don't see you how did it.
posted on October 27, 2014 
Algebra
I am 100% confused on this.
posted on October 21, 2014 
Algebra: help!
I am mainly confused with problem D. I don't understand and have yet to get the right answer.
posted on October 12, 2014 
Algebra, help please!!!
I am mainly confused with problem D. I don't understand and have yet to get the right answer.
posted on October 12, 2014 
Algebra
Where did the 19 come from? Also that was all just question "a" right? So confused.
posted on October 12, 2014 
HELP! Algebra. DONT UNDERSTAND
How did you do this??
posted on October 2, 2014 
Algebra HELP!
I still don't understand how you got that though, factoring is my major weakness. I don't get how you get the answers to them.
posted on October 2, 2014 
Math help!
Thank you very much, I appreciate it. You were correct.
posted on October 1, 2014 
Algebra
That is what I had for the first one. Wanted to make sure I was doing it correctly.
posted on October 1, 2014 
Algebra
What does that mean for this problem then?
posted on September 29, 2014 
math
The typo is the 2247 degrees Celsius. It's suppose to be 247 degree Celsius. How would your work the problem now?
posted on September 29, 2014 
math
In a classroom, Alba asked why we don't talk about LCM and GCM. How would you answer?
posted on September 22, 2014 
Algebra
y1 4x+16 y1+1 = 4x +16 +1 y =4x+17
posted on October 20, 2013 
Math
Correct
posted on October 13, 2013 
Math
x = new price x+10 = old price 50/x = 50/(x+10)+5/12 12x(x +10)(50/x) = 12x(x+10)50/(x+10)+12x(x+10)5/12 600x +6000 = 600x +5x^2 +50x 5x^2 +50x 6000 = 5(x^2+10x1200) 5(x30)(x+40) =0 x =30 so the new price is 30 cent
posted on October 12, 2013 
Probability
Men Women Total prefer baseball 20 25 45 prefer football 30 25 55 Total 50 50 100 P(pfW) = (25/100)/(50/100) p = 25/50 = .5
posted on October 12, 2013 
Pre Algebra
A = s^2 To find side of length 81/100 = s^2 sqrt(81/100) = sqrt(s^2) 9/10 = s
posted on October 12, 2013 
algebra
x^2 3x + 3x 9 = x^2  9
posted on October 12, 2013 
statistics
p(at least 5 have the same month) p(someone shows w/ at least someone else) P(s)+ P(d) = 100 % 100% P(d) (12 *11*10*9*8)/12^5 P(d) =95040/248832 = .3819 100% 0.3819 = 0.6181 61.81%
posted on October 11, 2013 
Math
a = 3c 7a+ 3c = 6000 21c + 3c = 6000 24c = 6000 24c/24 =6000/24 c =250 a = 3c a = 3(250) = 750 a+c = 1000
posted on October 10, 2013 
Math
let a let c c =3a 3c +7a = 6000 3(3a) + 7a = 6000 9a +7a = 6000 16a = 6000 16a/16 =600/16 a = 375 c = 3a c = 3(375) = 1125 people 1500
posted on October 9, 2013 
algebra
4x 14y 1 10x +y 1 19x4y 37
posted on October 9, 2013 
Math
B D
posted on October 9, 2013 
Algebra 1
k8 = 7 k8 +8 = 7 +8 k = 1
posted on October 9, 2013