Posts by Christina
Total # Posts: 948

Math(Please check)
The yintercept is correct, but 5400 would not be the slope of the line. Remember that slope represents the rate of change, specifically the change in y divided by the change in x. In this case, y is the value of the automobile and x is the year. If that doesn't help, I ... 
Math
What is the mathematical term for a statement that can be flipped and still remain true? Example: A cat is a feline, and a feline is a cat. AND/OR What is the mathematical term for a statement that becomes false when flipped? Example: A square is a rectangle, but a rectangle ... 
sociology
I need some advice on a paper with the sociological perspective icluds history, biography, social lcation, macrolevemicrolevel and theorcical perspectives on 911 survivors 
Visual Arts
what are the 5 parts of a sphere? in order please from left to right (lightest to darkest) 
Math Algebra II
thank you 
Math Algebra II
9x^4/16y^6 How to I simplify it must be written in exponential form and no negative exponents. HELP 
Psychology final
Informational Interview Your final project for this course will be a 3 to 5page paper that consists of the insights you have gained about yourself, your experience with this course, and the information you learned about your career choice during your informational interview... 
physics
An automobile tire is rated to last for 45,000 miles. Estimate the number of revolutions the tire will make in its lifetime. 
quant. methods
yes but how could it be 937.50 minutes when you will pay 100 or 55 dollars either way for 1200 or 1000 minutes. It would need to be over those minutes. 
quant. methods
cant be 
quant. methods
Kim is deciding between two cell phone plans. Plan A charges a fixed monthly fee of $100 for 1200 minutes and .25 per minute over 1200. Plan B charges a fixed monthly fee of $55 for 1000 minutes and .33 per minute over 1000. At what point of usage would Kim be indifferent ... 
HIstory
How did it affect the Guarani Indians when they were first encountered the conquistadors? 
math
answer this x1/3=1/4 
math
answer this x1/3=1/4 
math
answer this x1/3=1/4 
Math Algebra II
x^24x+12=0 Complete the square to solve for x. Okay I know how to do up to here: (4/2)^2 12=x^24x(4/2)^2 212= x^24x+2 10= DO I FACTOR IT? 
Math Algebra II
thank you, okay I wasn't' sure 
Math Algebra II
Simplify (73i)^2. So would I do this: (73i) (73i) then distribute it .... OR (73i)^2 square everything 49+9i^2 ? thanks 
math
the study hours are 4, 10, 20, 24, 34, 36, 42 and the z scores are 2.5, negative 1.75, negative .5, 0, 1.25, 1.5, 2.25 and the percentile ranks are 10,25,35,40,50,75,95 what is the study hour with a z score of 1.75, what is the standard deviation of all the students, and what ... 
Statistics
In a survey of 1037 adults from the United States age 65 and over, 643 were concerned about getting the flu. Construct a 90% confidence interval for the population proportion. 
Finite Math
I keep trying to set up this problem to solve it using the Simplex Method, but I can't seem to get the tableau set up correctly. If anyone could help, I would appreciate it: A baker has 150 units of flour, 90 of sugar, and 150 of raisins. A loaf of raisin bread requires 1 ... 
Algebra
Solve by elimination method. 7r3s=14 3r+7s=64 Could never figure out the elimination method. Would love some help with this one. Thanks 
geology
Since the normal lapse rate is 6.5°C per kilometer, at a height of 2 kilometers the temperature would decrease 13°C (6.5°C × 2 = 13°C). The air temperature at 2 kilometers would be 23°C  13°C = 10°C. 
geology
10 degrees C 
Precalculus
I've tried many times to get the equation to balance using trig identities like halfangle formulas, powerreducing formulas, and double angle formulas, but I couldn't get the equation to equal out. I only need to work one side to make it equal to the other, like a ... 
Precalculus
How do I solve this? 1  4sin^2(x)cos^2(x) = cos^2(2x) 
5th grade
Consider: 4 children  .5 x 4 = $2 1 man  1 x 2 = $2 32 women  32 x 3 = $96 total = $100 
Algebra
Solve: 10<=4x5<4 
physics
Thanks for your help :) 
physics
A gas is taken though a single process in which its volume decreases by .25 m^3 as the temp of the gas rises 2deg C. Which of the following people are more likely to have reached the correct conclusion? a. Bob ids this process as adiabatic b. Jill ids this process as ... 
physics
A spring that is .7m in length elongates to 1.06 m when a 20 newton force is exerted to stretch the spring. By how much more does the spring stretch when an additional 8 newtons of force is exerted on it? 
physics
A 5 kg block of average density .625 kg/m^3 has a volume of about _____ cu. m 
physics
An observer detects an apparent frequency of 505 hz coming from a 500 hz source. Which is true? a. the observer is moving due east, away from the stationary source b. the source is moving due west, away from the stationary observer c. the souce and the observer are moving away... 
physics
A dinner plate drops and breaks. This best illustrates the ______ law of THERMODYNAMICS A. 1st b. 2nd c. 3rd d. 4th 
chemistry
Salicyclic acid reacts with methanol to produce methylsalicyclate or winter green and water according to the following reaction: C7H6O3 (s) + CH3OH (l) > C8H8O3 (s) + H2O (l) What mass methylsalicyclate can be produced from 15.00 grams of salcyclic acid? What mass of ... 
chemistry
Calcium carbonate reacts with hydrochloric acid according to the following reaction: CaCO3 (s) + 2 HCl (aq) > CaCl2 (aq) + H2O (l) + CO2 (g) How many grams of calcium carbonate would be required to neutralize 50.0 cm3 of 8.00 M HCl? 
logarithmic differentiation
How do you find the logarithmic differentiation of y = x^6x? 
logarithmic differentiation
How do you find the logarithmic differentiation of y = xcos x ? 
Physics
Thanks! :) 
Physics
a 10 kg ball moving due west at 2m/sec collides with a 4kg ball that is moving due east at 3 m/sec. You determine that immediately after the collision the 10 kg ball is moving due west at 0.57 m/sec. A) this probably IS a Totally inelastic collision B) this definitely is NOT a... 
Physics
A 10 kg ball moving due west at 2m/sec collides with a 4kg ball that is moving due east at 3 m/sec. You determine that immediately after the collision the 10 kg ball is moving due west at 0.57 m/sec. How do I set up the equations to find the answer? 
Science
Where are memories stored in your brain? 
math
when doing decimoles and multiplying them by whole numbers...for example 4.7805 multiplyed by 1000 dose the decimole go 4places over or 8places over i don't get it please help!!! 
Physics
Thank you so so much And I also posted another physics question down below if you don't mind helping me out? 
Physics
A weight of 50.0 N is hung from the center of a stretched horizontal wire 10.0 meters long. It causes the wire to say 1.00m at its center. What is the force exerted by each half of the wire in supporting the weight? 
physics
an electric sign weighing 200 newtons is supported by two slanting cables. each cable is attached to the same point of the sign and makes a 45 degree angle with the horizontal. what is the component of the force exerted by the sign along each of its cables? 
algebra
The answer should be 14. Substitute "6" for every "x" and solve. 
Chemistry
5,2 
Chemistry
Between which two orbits of the Bohr hydrogen atom must an electron fall to produce light of wavelength 434.2nm? 
World History
From 8000Bc 600 AD This is talking about the fall of Rome and greece. 
World History
what classical traditions and institutions survived despite the fall of the states? Please I really need help, I have no notes on this. 
spanish
why can't u google it? 
World History
I don't know, mabye it's a typo. Just ignore that word. 
World History
describe the spread of sedentary agriculture outside the older civilized areas 
english
Notes, Feelings, Diary, Storys, Essays, Thoughts, Pictures. 
World History
aryans is an old english language?? and guptas was an ancient Indian empire 
World History
explain the beliefs of Hinduism and its evolution from the aryans to the Guptas. WHO ARE THE ARYANS AND THE GUPTAS? please help :( 
math
1/33 percent of 600? 
BIOLOGY
GOOOGLE. EASY question for google. com 
MATH
divide all the points given by two then graph them and connect the points. (: 
math
tyrell because you must round it up because it is over 749 it rounds up. 
World History
what does it mean by institutions? How do I describe Legalism? 
World History
Describe the teachings and institutions of Confucianism Dadaism and legalism 
6th grade
With different kind of maps 
spanish
Or google translate! 
Repost ms. sue.
Thank you!!!!!!!! I love <3 this site. 
Repost ms. sue.
how were the first civilizations similar and different? They all had a social hierarchy, and some sort of government. The main type of ecominic income was agriculturei think. That's all I know 
physics
483000 in what units? 
physics
That's wrong Muilitpy 3* 5280 
physics
K cool. first step 3 miles * 5280 ft __________________ 1 ft 1 mile. Now muilitply top times top ( 3 times 5280) and then divide it by the answer at the bottom when u muiltply. (1 times 1) 
physics
Okay first you have to go from miles to ft then to iniches and then to cen? right? So you put what your trying to find on top. I'm not going to do this for you so tell me, how many feet are in a mile? 
Random?
to get different opinions. 
MATH
One quarter is 1/4 or .25 so * .25 * 6= ? Then do the same thing you did for A and there you go (: 
MATH
Make the ft into ins. (12 in. in a foot) and muilitpy length *width *height. 
World History
Oh, okay. They all had a social hierarchy, and some sort of government. The main type of ecominic income was agriculturei think. 
World History
thank you, please help me. 
World History
how were the first civilizations similar and different? 
World History
8000 BC600 CE I don't know 
World History
How did civilized culture survive the rise and fall of regional states? 
CHEM
3, because the 0 don't count, they would count if the number had a decimal point at the end, but it doesn't so 3. 
algebra
3z^8 over 7p^3 multiplied 49p^5 over 9z 
An Overview of Teaching Techniques
12.) is wrong CORECT ANSWER IS C. 
An Overview of Teaching Techniques
12.) is wrong 
Chemistry
A 2.52g sample of a compound containing only carbon, hydrogen, nitrogen, oxygen, and sulfur was burned in excess O to yield 4.36g of CO2 and 0.892g of H20. Another sample of the same compound of mass 4.14g, yielded g of SO3. A third sample, of mass, 5.66g, yielded 2.80 g of ... 
economics
can anyone explain to me how to solve for P, if Q=2402P? 
economics
HELP!!!!! One and only Inc is a monopolist. The demand function for its product is estimated to be Q=600.4P +6Y+2A Y=3,000 P=Price per Unit Y=Per capita disposable personal income (thousands of dollars) A=hundreds of dollars of advertising expenses The Firms average variable ... 
11th grade
According to Bohr model, what determines the color of light emitted when an electron moved from one energy level to another? 
statistics
Use the randomnumber table to simulate the outcomes of tossing a quarter 25 times. Assume that the quarter is balanced (i.e., fair). (Start at row 1, and let 0, 1, 2, 3, 4 indicate heads and 5, 6, 7, 8, 9 indicate tails. Enter H for heads and T for tails, and enter your ... 
Finance
You have found the following stock quote for RJW Enterprises, Inc., in the financial pages of today's newspaper. The closing price for this stock that appeared in yesterday's paper was $ (Do not include the dollar sign ($). Round your answer to 2 decimal places. (e.g... 
Finance
Ngata Corp. issued 12year bonds 2 years ago at a coupon rate of 8.4 percent. The bonds make semiannual payments. If these bonds currently sell for 105 percent of par value, the YTM is ? percent 
algebra
On January 1st a savings account showed a balance of $280. How much interest will be earned by the end of the year at an annual rate of 5 1/4? 
economics
how would a leader of a developing nation, a us citizen whose income is in the top 1%, and a us citizen whose income is in the bottom 5% talk about scarcity and tradeoffs? 
chemistry
Im not sure 
Physics
Vterminal=square root of (4mg/pa) p=1.22(density of air) a=22cm=.22m/2=.11m(radius)... (pi)r^2=.038=a 85^2 = 4mg/pa 7225 = 4(m)(9.8)/(1.22)(.038) 7225(.038)(1.220)/(4)(9.8) = m 8.54kg=m 
chemistry
.2M of NaOH(aq) 
Chemistry
thank you! i think the answer is 0.00612 is the delta t 
Chemistry
Calculate the boiling point elevation of a solution made from 15.0 g of a nonelectrolyte solute and 250.0 g of water. the molar mass of the solute is 50.0 g and Kb = 0.51 degrees C/m 
chemistry
200. g of a nonelectrolyte is dissolved in 1.00 kg of water. the boiling point of the solution is then measured to be 101.5 degrees C. What is the molar mass of the compound? The Kb for water is 0.51 degrees Celsius/m 
chemistry
200. g of a nonelectrolyte is dissolved in 1.00 kg of water. the boiling point of the solution is then measured to be 101.5 degrees C. What is the molar mass of the compound? The Kb for water is 0.51 degrees Celsius/m 
5th grade
8 layers:D