Saturday
December 10, 2016

# Posts by Jacob

Total # Posts: 849

Math
What is the difference between a linear and a quadratic model? How do I know which one is good for the graph? :S I know it has to do with equations to find R2
March 20, 2011

Algebra
Factor completely and then place the factors in the proper location on the grid. 4y2 + 25y + 6
March 17, 2011

Algebra
Laura has a roll of ribbon. There are 20 yards of ribbon on the roll. What equation can Laura use to find the number of inches of ribbon on the roll
March 10, 2011

Math
Do you suggest any other topics that has a lot of information?
March 8, 2011

Math
I was assigned an ISU for Data management. In first part, it requires a thesis (Example: Why do teenagers pay so much for car insurance?), hypothesis and 3 main points to back up thesis. I told my teacher that I wanted to do about death rates, what factors cause death rates in...
March 8, 2011

Math
Consider every whole number area from 2 square units to 30 square units. For which of these areas is there only one rectangle with whole number side lengths?
March 7, 2011

Math
Consider every whole number area from 2 square units to 30 square units. For which of these areas is there only one rectangle with whole number side lengths?
March 7, 2011

Math
Consider every whole number area from 2 square units to 30 square units. For which of these areas is there only one rectangle with whole number side lengths?
March 7, 2011

accounting
purchases from xavier corporation were incorrectly recorded at 41,000 instead of 14,000. Should we adjust purchases and accounts payable?
March 6, 2011

Math
Ah, ok thank you!
March 6, 2011

Math
Thank you! I think I did this before but I forgot... How do you know whether or not to use those formulas in these kind of questions? rearrange formulas? P(A U B) = P(A) + P(B) - P(A and B) and P(A U B) = P(A) + P(B)
March 6, 2011

Math
Thanks! T___T another question (Last one I promise, lol) The probability of a household subscribing to The Economist is 0.4 while the probability of subscribing to National Geographic is 0.6, and the probability of subscribing to NEITHER magazine is 0.2. What is the ...
March 6, 2011

Math
If possible, can you help me with this question also? From a group of 10 girls and 10 boys, 10 will be chosen to form a committee. Find the probability that atleast ONE GIRL is chosen. I did it like this At least 1 girl so therefore I separated more than 1...
March 6, 2011

Math
So, for b it is (4,3)(4,4) + (4,2)(4,1)/(8,5)= 28/56= 1/2?
March 6, 2011

Math
2a) (4,1)x(4,4)/ (8,5)=4/56 For 2a, why is student 4,4? I don't understand that. I know that for 1 teacher, there is 4 student because there is 5-person committee. I don't know question b.
March 6, 2011

Math
Find the probability of: a) Rolling a three OR a six with a single die Answer: P(3 U 6)= n(3U6)/n(S) = 3+6/6 = 9/6 reduced: 3/ b) Dealing an ACE OR a FACE CARD from a standard deck Answer: P(A U F)= 4/52 + 12/52 = 4/13 2. A 5-committee is to be chosen from 4 teachers and 4 ...
March 6, 2011

Math
How many distinct permutations of the letters of the word OTTAWA being and end with the letter T? I did 6!/2! :S but i get 360. I tried 6P2=30 I am getting it wrong... help please.
March 3, 2011

physics
You push a 1.9 kg block against a horizontal spring, compressing the spring by 13 cm. Then you release the block, and the spring sends it sliding across a tabletop. It stops 60 cm from where you released it. The spring constant is 200 N/m. What is the block-table coefficient ...
February 14, 2011

science/math
0.0821917 ? .082 m a day
January 25, 2011

science/math
A sand dune can travel up to 30 m per year. How far does the sand dune move per day?
January 25, 2011

Pre-algebra
Transform the formula. The area of a triangle A can be found with the formula A=1/2bh where b is the length of the base of the triangle and h is the height of the triangle. Solve the formula for h.
January 20, 2011

English
January 19, 2011

English
The example we were given was - He was a fine doctor, but he was growing old. My assignment was to find 5 sentences that use this pattern.
January 19, 2011

English
Where can I find examples of the sentence pattern Pronoun-verb-article-noun, conjunction-pronoun-verb-adverb on the internet? I need 5 examples. Thank You.
January 19, 2011

ant101
how would i answer this question? i am having a hard time coming up with an answer
January 19, 2011

ant101
As a cultural anthropologist what might you propose to research and would it be an Ethnology or Ethnography? What methods would you use to gather your data? What potential issues may you face while conducting your fieldwork and how would you deal with them?
January 19, 2011

Math
What is 7 1/4 minus 3 3/8?
January 18, 2011

physics
A child drops a coin from the window of a house.it strikes the ground 0,8 s later.what is the magnitude and direction of the coin's acceleration?
January 18, 2011

Physical science
A body falls from rest for 5seconds calculate its velocity-time graph of its motion (from t= 0s to t=5s)
January 18, 2011

biology
which process most likely caused the change in CO2 level in the flask over the lasy 37 minutes?
January 17, 2011

math
I thought 22 was the answer, but the part in my book about describe how to mentally check your answer threw me off
January 4, 2011

math
the diameter of a soup can is 7cm. the label wraps around the can. about how many centimeters long must the label be to go all the way around the soup can? use 22/7 for pi describe how to mentally check whether your answer is reasonable
January 4, 2011

math
what is 125% of 60?
January 3, 2011

the 14th day
December 16, 2010

Chemistry
I need a creative title for a lab report that deals with using dalton's partial pressure law in order to determine the amount of hydrogen gas that was collected over water. any ideas?
December 15, 2010

what were the steps on mendels experiments with pea plants?
December 9, 2010

Algebra
if i am correct it should be 120 because its cross mutiplying so 6*20=120/1= 120
December 2, 2010

what is the capital of alabama
November 27, 2010

statistics
SAT scores are normally distributed with a mean of 1518 and a standard deviation of 325. What scores correspond to P20 and P65?
November 27, 2010

If I'm driving a car and I make a turn to the right, what will happen to a bag of items that is sitting next to me in the car-in terms of inertia, friction and centripetal force I think they will fall the opposite direction but we just started this unit and I don't ...
November 21, 2010

Physics
If I'm driving a car and I make a turn to the right, what will happen to a bag of items that is sitting next to me in the car-in terms of inertia, friction and centripetal force I think they will fall the opposite direction but why?
November 21, 2010

geometry
How do I draw an acute scalene triangle with lengths of 8cm, 10cm, and 16cm?
November 13, 2010

Let n= any random number, then n-5
November 11, 2010

science
Words to use: Accelerate - Sliding - Brake - Friction - Slipping - Inertia Velocity - Wheel - Strength - Static - Terminal velocity Questions 1. An object will ____?____ when the net force is not zero. 2. ____?____ will never speed up an object. 3. The friction that prevents ...
November 9, 2010

similiar figures
the rul (x,3/4y) is applied to a polygon. Is the image similar to the original polygon?
November 9, 2010

Science
The gravitational force of any object near Earth is _____? A unknown B friction C Newton's First Law D 9,8m/s2 When you walk across a bridge, the _____ force of the bridge keeps it from breaking. A gravitational B normal C strong D weak A (n) _______________ helps reduce ...
November 9, 2010

similar figures
The rule (x,3/4y) is applied to a polygon. The given point is on the original polygon. Find the image of the point (6,8)
November 9, 2010

chemistry
A sample of an unknown gas effuses in 11.5 min. An equal volume of H2 in the same apparatus at the same temperature and pressure effuses in 2.77 min. What is the molar mass of the unknown gas?
November 1, 2010

science..physics
I'm on a test..don't get me wrong physics is hard. Ha. A 10 kg sled is pulled horizontally by a force. If the coefficient of static friction is 0.3 , what force is needed to get the sled moving at a constant velocity?
October 29, 2010

Science
no really were all just in the library helping each other get ready for a bug chem test
October 28, 2010

Science
Constract a heating/cooling curve from an MSDS, draw multistep energy bar charts that correspond to the curve, and calculate the total. Energy released/ absorbed
October 28, 2010

NEED HELP POSTED TWICE
1. Find the slope of the line through the pair of points. (-1/3,0) and (-1/2,-1/2) Choices: -3 1/3 -1/3 3 2. Write in standard form an equation of the line passing through the given point with the given slope. Slope=8/7; (5,-3) Choices: -8/7x+y=-61/7 -8/7x-1=-61/7 -8/7x+y=61/7...
October 18, 2010

Algebra 2
1. Find the slope of the line through the pair of points. (-1/3,0) and (-1/2,-1/2) Choices: -3 1/3 -1/3 3 2. Write in standard form an equation of the line passing through the given point with the given slope. Slope=8/7; (5,-3) Choices: -8/7x+y=-61/7 -8/7x-1=-61/7 -8/7x+y=61/7...
October 18, 2010

PHYSICS
Jade you got to remember that it is accelerating downwards since gravity is -9.8 m/s. so it is not easy as that and I would think before you try and put your knowledge on the page.
October 17, 2010

math
Can someone explain to me how this question has the answer like this Points:(2,3) y=-2f[2(x+5)] - 4 The answers are (2, 3) ( 2, -3) -> (2, -6)-> (1, -6) -> (-4, -10) I know it has to do with translations like 1/k etc.. but im a bit confused ):
October 13, 2010

how i do (6)(4)
October 7, 2010

algebra
What is the answer to 7(d+5d) - 16d
October 6, 2010

use the distbutive property to rewrite the expression as a product. 6+18y+24
October 4, 2010

physics
An airplane is flying with a speed of 240 km/hr at an angle of 27 degrees north of east. a) How fast is the plane flying north? b) How fast is the plane flying east?
September 30, 2010

math
6*6+6*6-6=24 Where would the parenthesis go?
September 30, 2010

Chemistry
Why does molarity depend on temperature?
September 26, 2010

Around the time of the roman empire the terms inch, foot, and yard were refine. what was the length of a foot based on?
September 24, 2010

algebra
2y^-3 = 4e^(-x/2)/(1+e(-x/2)) my teacher gave this problem in my chem class and i don't know what he is really asking , does any one have an idea if i have to solve for y or what's going on..
September 18, 2010

CALCULUS
Use the product rule to calculate the derivative. dh dx x = 4 , h (x) = (x^(-1/2) + 7x)(9 - x^-1) very weird.. i know how to do it, i used product rule and got an answer in decimal but the website is not accepting it. Can any one help me?...
September 18, 2010

chemistry
how would one do this problem.. 2y^-3 = 4e^(-x/2)/(1+e(-x/2))
September 18, 2010

Math
What is 87 to the power of 8?
September 17, 2010

physics
if you are an observer moving at 3.2 m/s towards an object that is moving toward you at 1.4 m/s, what is the relative velocity of the object moving toward you?
September 16, 2010

Physics
The drawing shows an elastic cord attatched to two back teeth and stretched across a front tooth. The purpose of the arrangement is to apply a force to the front tooth. If the tension in the cord is 1.2N what are the magnitude and direction of the force applied to the front ...
September 15, 2010

Math
Yes, thank you. I was doing it that way, but didn't know if I was correct.
September 14, 2010

Math
Find: Re[1/(2+j)] Im[2+j/(3+4j)]
September 14, 2010

History
Yes or no. To have a favorable balance of trade, a country must sell fewer goods to other countries than it buys from other countries. Yes or no.Money is an example of an capital resource. Yes or no.In our economic system, people receive wages for producing goods or providing ...
September 12, 2010

college math
stratified sampling
September 11, 2010

English
I agree with SraJMcGin, that will give you the answers.
September 8, 2010

Algebra 1
Thank you Jen. U r great
August 30, 2010

Algebra 1
pythagorean theorema=13 b=9 c=?
August 30, 2010

ARTICLES OF CONFED. - HISTORY
How did the Confederation Congress attempt to colve the problem of staus of western territory that the states had ceded to it? Which interest groups favored which plans for the sale and distribution of land?
August 30, 2010

Algebra
Kate cut a 100-foot rope into two pieces. One piece was 5 feet longer than 4 times the length of the other. Find the length of each piece.
August 26, 2010

math
The height of a rocket in meters t seconds after it is launched is approximated by the polynomial 0.5 at2 + vt + y where a is always -9.8, v is the initial velocity, and h is the initial height. The 4400i was launched from the ground at the same time the Q99 was launched from ...
August 16, 2010

math
The height of a rocket in meters t seconds after it is launched is approximated by the polynomial 0.5 at2 + vt + y where a is always -9.8, v is the initial velocity, and h is the initial height. A 300X was launched from a height of 10 meters. What was its height after 3 seconds?
August 16, 2010

english
in the diary of anne frank. how does anne use imagery to describe both the environment of her hiding place and the people in it.
August 11, 2010

English
How does Anne use imagery to describe both the environment of her hiding place and the people in it?
August 11, 2010

Math
how do you find the fractional notation for the ratio of 54.28 to 89.69
August 4, 2010

Geometry
It should be D. If the hypotenuse and leg of a right triangle are congruent to the hypotenuse and leg of another right triangle, then the triangles are congruent
June 29, 2010

math
A 16-ft ladder is sliding down a wall as shown in the figures below. The variable h is the height of the ladder's top at time t, and x is the distance from the wall to the ladder's bottom. Suppose that the top is sliding down the wall at a rate 5 ft/s. Calculate dx/dt ...
June 29, 2010

Statistics
Assume that about 45% of all U.S. adults try to pad their insurance claims. Suppose that you are the director of an insurance adjustment office. Your office has just received 110 insurance claims to be processed in the next few days. What is the probability that fewer than 45 ...
June 26, 2010

Statistics
Assume that about 45% of all U.S. adults try to pad their insurance claims. Suppose that you are the director of an insurance adjustment office. Your office has just received 110 insurance claims to be processed in the next few days. What is the probability that fewer than 45 ...
June 25, 2010

Statistics
Assume that about 45% of all U.S. adults try to pad their insurance claims. Suppose that you are the director of an insurance adjustment office. Your office has just received 110 insurance claims to be processed in the next few days. What is the probability that fewer than 45 ...
June 25, 2010

Statistics
. Suppose that about 20% of those called will find an excuse (work, poor health, travel out of town, etc.) to avoid jury duty. If 14 people are called for jury duty, what is the probability that all 14 will be available to serve on the jury? Round your answer to three decimal ...
June 25, 2010

Statistics
. As the sample size increases The confidence interval also increases (gets larger) The confidence interval decreases (gets smaller) The confidence interval stays the same The population mean increases.
June 22, 2010

Statistics
What is meant by the 95% confidence interval of the mean ? That 95% of my sample is OK to do more tests. That I am 95% confident that the confidence interval will contain the parameter being estimated. That 5% of my sample is not OK. That I am 95% sure that the population mean...
June 22, 2010

Statistics
Suppose in a carnival game, there are six identical boxes, one of which contains a prize. A contestant wins the prize by selecting the box containing it. Before each game, the old prize is removed and another prize is placed at random in one of the six boxes. Is it appropriate...
June 21, 2010

Statistics
Suppose in a carnival game, there are six identical boxes, one of which contains a prize. A contestant wins the prize by selecting the box containing it. Before each game, the old prize is removed and another prize is placed at random in one of the six boxes. Is it appropriate...
June 21, 2010

Statistics
Suppose that x has a distribution with = 10 and = 5. If a random sample is taken of size n = 44, find . 10.00 my answer was 0.75 is this correct 0.75 1.51 0.11 5.00
June 20, 2010

Statistics
. A certain company makes 12-volt car batteries. After many years of product testing, the company knows that the average life of a battery is normally distributed, with a mean of 45 months and a standard deviation of 7 months. If the company does not want to make refunds for ...
June 20, 2010

Statistics
Suppose I am using the t-distribution to estimate or test the mean of a sample from a single population. If the sample size is 25, then the degrees of freedom are ____? I have an answer of 26 is this correct
June 17, 2010

Statistics
Suppose in a carnival game, there are six identical boxes, one of which contains a prize. A contestant wins the prize by selecting the box containing it. Before each game, the old prize is removed and another prize is placed at random in one of the six boxes. Is it appropriate...
June 17, 2010

Statistics
I am having trouble understanding standard normal distribution such as if p(z<-0.13) the answer to that was 0.4483 but not understanding how that is computed.
June 17, 2010

Statistics
Suppose a certain species bird has an average weight ofx=3.55 grams. Based on previous studies, we can assume that the weights of these birds have a normal distribution with 0=0.37 grams. For a small group of 15 birds, find the margin of error for a 70% confidence interval for...
June 17, 2010

Statistics
In a random sample of 508 judges, it was found that 281 were introverts. Let p represent the proportion of all judges who are introverts. Find a point estimate for p. Round your answer to four decimal places. I am needing assitance in trying to figure out the correct formula ...
June 17, 2010

Statistics
I am having trouble understanding standard normal distribution such as if p(z<-0.13) the answer to that was 0.4483 but not understanding how that is computed.
June 17, 2010

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