Posts by jeffery
Total # Posts: 74

Math degrees
A circle is 360 degrees, this circle has 9 equal section. Therefore, take 9/360 which equals 40. The measure of each angle for each section is 40. 
US History
Better transportation systems 
Science
A geologist measured the amount of 40K in a rock; she determined that there was about 10 grams of 40K and 10 grams of 40Ar. What would be the approximate age of that rock? 
math
7/35 = .2 Average change = .2 
Science Chemistry
How do I make an electron dot diagram for MgO? ( 
Math 7
But how would you solve the other 3 then 
Math 7
In a bag there are 2 red marbles 3 white marbles and 5 blue marbles. Once a marbel is picked it is not replaced. Find the following probabilities: P(red,then white) P(blue, then red) P(red, red, red) P(blue, blue, white) 
Math
Thank you. 
Math
Write "3 times the sum of x and 5 is 90" as an equation. You don't have to solve. Thank you in advance! 
Chemistry
it is not pure gold 
5th grade math
A seed needs to grow 3 in. in one week. the seed grows 1 7/8 in. one day and 1/2 in. another day. how many more inches does the seed new to grow. Do I add or subtract. help 
Math
Idk 
Math
Thank you! 
Math
On Monday, thirty percent of the pies sold at the pie store were apple. If 24 apple pies were sold on Monday, how many of the other types of pies were sold that day? I think I should start with 30/100 and 24/x but I am not sure. =80 8024 = 56 
Math
On Monday, thirty percent of the pies sold at the pie store were apple. If 24 apple pies were sold on Monday, how many of the other pies were sold that day? I think I should start with 30/100 and 24/x but I am not sure. =80 
Math
Thank you! 
Math
It is a picture of a square. So maybe I should double the numbers since I need to account for the other 2 sides. 10x2=20 20x$3.50 = $70.00 Is this right? 
Math
The numbers are right. I just double checked. 
Math
Felix used a scale factor of 1 inch = 2.5 feet to draw model of his backyard, as shown below. He is planning to build a fence around the yard. If the cost of the fence is $3.50 per foot, how much will it cost him to build the fence? Length 2.75in. width 1.25in Is my answer ... 
math
I am still having difficulty finding the expression 
math
Alberto filled his tire on a Saturday. Three days later the tire pressure in the tire measured 26 psi. On the following day one week after he had originally filled the tire, the tire pressure measured 18 psi. I'm to to find b in y=2x+b I'm trying to solve the equation... 
math
On Saturday, Alberto filled his right rear tire with air at the gas station around the block from where he lives. Three days later the tire pressure in that tire measured 26 psi (pounds per square inch). On the following Saturday, one week after he had originally filled the ... 
Social Studies (History)
What did Germany, Italy, Japan, and the Soviet Union aka USSR have in common before WWII? please have four reasons and please explain why these countries had that similarity. 
science... PLEASE HELP!
The problem says "during which stage of the cell cycle does the cell membrane pinch the cell in two?" I said the cytokinesis stage is when the cell membrane pinches the cell in two. Am I correct? If not, please help! 
Social Studies (History)
What were the reasons for Prohibition and what were the results of the Prohibitions? 
Social Studies (History)
How did the rifle, machine guns, tanks, poison gas, and planes effect on how the war is fought (World War 1)? Please do each one individually. 
science... PLEASE HELP!
Please explain how the movement and position of the particles change when a liquid bevomes a solid. 
science... PLEASE HELP!
Why does an investigator in an experiment change only one variable? 
science... PLEASE HELP!
Please describe a constant in an experiment. 
history
How does societal change happen? Please give 2 methods and an explanation why you chose your reasons. 
math
When it says "three times the quantity of a number increased by 2 is 108" what would the equation be? 
math
But wait. How did you get the dimensions for the length and width the way you did? 
math
Oh never mind I see what I did to make it more than 60. 
math
But then when I do the perimeter for the width and length I would get more than 60. 
math
David currently has a square garden. He wants to redesign his garden and make it into a rectangle with a length that is 4 feet shorter than twice its width. He decides the perimeter should be 60 feet. Determine the dimensions, in feet, of his new garden. What would be the ... 
math
Oh, I did the oppistie of that. I multiplied the 2 from n/2 on both sides of the equal sign and I got, n, as 5. However, how could you subtract from a division to a multiplication? 
math
Okay, but I believe you have lost the equal sign when you switched from 3n5=n/2+20 to 3nn/2=25. 
math
If it says: "five less than three times a number is 20 More than half a number" would the equation be 3n5=n/2+20? If so what would the answer be? Please help this is a bit confusing! 
math
Would the answer be 10? 
math
When it says "eight less than twice a number is 12 more than four times the number" will its equation Be, 2n8=4n+12? And if that is true how could I solve it? 
ELA
Okay, so this sentence, "The banners precede the band in a parade" is good for the word? 
ELA
How could I use the word 'precede' in a sentence? 
math
the answer is "TAKE THE SHORTEST ROOT" 
Social Studies
c.Oregon 
math
52 
American Government
ok thank you so much! 
American Government
Please Check = is the answer I selected. 1. In _____ countries, a single authoritarian party usually controls the political system, and the government owns most property and directs the majority of economic activity. A.) mercantilist B.)feudal C.) socialist =D.)communist 2. ... 
science
calculate the momentum of 2.5 kg puppy that is running with a velocity of 4.8 m/s south 
math
the area of the original square piece of paper are 169 
Chemistry
An electrochemical cell is created using gold and magnesium halfcells. a. Determine which halfcell will undergo oxidation and which will undergo reduction, identify anode and cathode, and calculate the voltage for the cell. You do not need to diagram the cell. b. If the mass... 
Chemistry2
WO3 (s) + 3 H2 (g) > W (s) + 3 H20 (g) Tungsten is obtained commercially by the reduction of WO3 with hydrogen according to the equation above. The following data related to this reaction are available. DeltaH(kilojoules/mole) for WO3 is 839.5. DeltaH for H20(g) is 241.6... 
chemistry
Great! Thanks for your help 
chemistry
Oh ok, do you think its just a typo? My teacher said that it is realatively soluble, but more insoluble than other nitrate salts 
chemistry
Sorry, I meant Ba(NO3)2 in the question 
chemistry
Calculate te calue of Ksp for Ca(NO3)2 using the data below. Ba(aq) delta G0f= 561 kJ/mol NO3 (aq) delta G0f= 109 kJ/mol BaNO3 (s) delta G0f= 797 kJ/mol 
geometry
make a conjecture about the item in the sequence 6, 8, 32, 120 pick ansewr a. 116 b.480 c.122 d488 
business
direct request 
college calculus 1
Find the local and absolute extreme values of the function on the given interval. f(x)=x^36x^2+9x+1, [2,4]? 
college
I'm very confused? 
college
Suppose that the number of cars, C, on 1st Avenue in a city over a period of time t, in months, is graphed on a rectangular coordinate system where time is on the horizontal axis. Further suppose that the number of cars driven on 1st Avenue can be modeled by an exponential ... 
college
sorry but yes it is college algebra 
college
Suppose that the number of cars, C, on 1st Avenue in a city over a period of time t, in months, is graphed on a rectangular coordinate system where time is on the horizontal axis. Further suppose that the number of cars driven on 1st Avenue can be modeled by an exponential ... 
Literature
Can some one please explain these stanzas to me? I have read them over and over and am still so confused. Take up the White Man's burden Send forth the best ye breed Go bind your sons to exile To serve your captives' need; To wait in heavy harness, On fluttered ... 
physics
a jet pilot takes his aircraft in a vertical loop. a) if the jet is moving at a speed of 2000 km/h at the lowest point of the loop, determine the minimum radius of the circle so that the centripetal acceleration at the lowest point does not exceed 6.0g's b) calculate also ... 
math
Factor: Y2  8Y  20 the 2 is too the second power 
art help needed
the answers were #1. pessimism #2. despair #3. working class #4. false. thank you all for the help!!! 
art help needed
The last major painting of Manet's career, A Bar at the FoliesBergere, reflects the artist's: optimism pessimism intense emotion positivism I see it was expressionism, but which of the answers given is a term related to that? i think it is positivism? Goya who "... 
art history help please!
If you could please check these and just let me know which ones are correct! also if you have any input on a better answer, or atleast where i can find a better answer, i would greatly appreciate it! This artist painted scenes of upperclass recreation: Edgar Degas Claude ... 
art help needed
#1. Corot painted only in his studio using professional models for his subjects. a. true b. false 2. Photography as we know it emerged around 1840. a. true b. false 3. Claude Monet agreed with the outdoor painters of the Barbizon school in their conception of landscape as a &#... 
algebra (21)
train A and B are traveling in the same direction on a parallel tracks. Train A is traveling at 40 miles per hour and Train B is traveling at 48 miles per hour. Train A passes a station at 3:15pm. If train B passes the same station at 3:45pm. At what time will train B catch up... 
englich
In the sentance liz through the play was incredibly dull. what part of speech is incredibly 
4th Grade math
25 
geometry:linear measure and precision
find the value of the variable and KL if K is between J and L. JK=6r,KL=3r,and JL=27 
geometry:linear measure and precision
find the value of the variable and KL if K is between J and L.