Monday
October 20, 2014

Posts by MAry


Total # Posts: 3,271

Precalculus
The question(s) are as follows: Given: f(x) = 3cos(3x+π) - 4 Find: a) the inverse of F(x) b) the domain and range of F(x) c) the domain and range of F -1(x) I got cos-1[(x-4)/9] - π = y for the inverse, although I'm not sure I did the problem right (I set x to y ...
November 11, 2012

algebra
The basic formula is rate x time = distance. Since the freight train and the passenger train are traveling the same distance, the rate x time for each train equals the other. Let t = the time for the freight train. Then t-2 would equal the time for the passenger train, since ...
November 11, 2012

Precalculus
The question(s) were as follows: Given: f(x) = 3cos(3x+π) - 4 (as you thought) Find: a) the inverse of F(x) b) the domain and range of F(x) c) the domain and range of F -1(x) I got cos-1[(x-4)/9] - π =y for the inverse, although I'm not sure I did the problem ...
November 11, 2012

Precalculus
How would I go about finding the domain and range of 3cos(3x+π) = 4? Thanks
November 11, 2012

social studies
The Demographic Transition Model
November 11, 2012

maths
find the whole number solutions to each of these inequalities. q1. 3<2x-1≤17 q2. 5≤g-3≤12 q3. 8<5c≤20
November 11, 2012

Sociology
This unit we learned about the various social statuses in the U.S. Identify and describe each status. How are they similar and how do they differ? Into which social status do you fit and why do you feel this way
November 9, 2012

Economics
The slope of the consumption function equals: A. 1-MPS B. 1/(1-MPS) C. 1-MPC D. MPC/MPS E. MPS
November 9, 2012

Economics
Consider the simple economy of Behr, whose government does not tax its citizens. The consumption function of Behr is given by: C=500+.8Y, where Y is income. the autonomous consumer spending in this economy is: A. $1000 B. $800 C. $500 D. $.80 E. $1800
November 9, 2012

Algebra
What is the rule?? INPUT OUTPUT ______ 12 9 ______ ______ 6 ______ 16 7 _______
November 7, 2012

Physics B
Objects with masses of 105 kg and 528 kg are separated by 0.482 m. A 41.1 kg mass is placed midway between them. 0.482 m b b 105 kg 41.1 kg 528 kg Find the magnitude of the net gravitational force exerted by the two larger masses on the 41.1 kg mass. The value of the universal...
November 6, 2012

Science
A 52kg tricyle left a child's yard at 3m/52. What is its force ?
November 6, 2012

geography
omg thanks i needed help on that one too! still working on the other parts
November 4, 2012

stats
if you know the mean and standard deviation, how do you determine the proportion that will and will not be included
November 4, 2012

Physics B
part 1 A coordinate system (in meters) is constructed on the surface of a pool table, and three objects are placed on the coordinate system as follows: a 1.5 kg object at the origin, a 3.4 kg object at (0 m,1.8 m), and a 4.5 kg object at (4.2 m,0 m). THANK YOU!! Find the ...
November 4, 2012

Physics B
A coordinate system (in meters) is constructed on the surface of a pool table, and three objects are placed on the coordinate system as follows: a 1.5 kg object at the origin, a 3.4 kg object at (0 m,1.8 m), and a 4.5 kg object at (4.2 m,0 m). Find the resultant gravitational ...
November 4, 2012

Math
Jane is x years old today. Her brother Kenny is 4 years older. After seven years their total combined age will be 24 years. Write a linear equation for their total combined age after seven years. Fine James age today.
November 3, 2012

Math
There are 40 questions on a class test. Six points are given for each correct answer and three points are deducted for each wrong answer. Find the number of correct answers for a test score of 105.
November 3, 2012

chemistry
Calculate the grams of solute needed to prepare each of the following. 55.0 ml of a 6.50 hcl solution.
November 2, 2012

Physics B
An air puck of mass 0.289 kg is tied to a string and allowed to revolve in a circle of radius 0.51 m on a horizontal, frictionless table. The other end of the string passes through a hole in the center of the table and a mass of 0.98 kg is tied to it. The suspended mass ...
November 1, 2012

Physics
An air puck of mass 0.289 kg is tied to a string and allowed to revolve in a circle of radius 0.51 m on a horizontal, frictionless table. The other end of the string passes through a hole in the center of the table and a mass of 0.98 kg is tied to it. The suspended mass ...
November 1, 2012

7th grade math ASAP please
2 is 43:51 4 is 15 packs for 3.95 10 is NO IDEA!!! Sorry for the last question but I hope I was a help on the first 2!!! :D Good luck on your Maths homework!! :D
October 30, 2012

college algebra
list the intercepts and test for symmetry. y=-8x/x^2=49
October 28, 2012

financial accounting
The lake theater opened on april 1.all facilities were completed on march 31. During april,the following events and transactions occured. Apr.2 paid film rental of $800 on first movie. 3 ordered two additional films at $1,000 each. 10 made $2,000 payment on mortgage and $1,000...
October 27, 2012

Physical Science
Sound travels about 1530 m/s in sea water. How many times faster does sound travel in sea water than in air? (The speed of sound in air at 25°C is about 345 m/s.)
October 24, 2012

chemistry
onic compounds have names that... (choose all that apply) might contain Roman numerals. might start with ammonium. start with the name of an anion. have prefixes, like di or penta. start with the name of a nonmetal.
October 22, 2012

chemistry
What is the chemical formula of the compound that forms between lithium (Li) and phosphorus (P)?
October 22, 2012

math
-2a+2=-14 -2a=-16 a=-16/-2 a=8
October 22, 2012

Accounting
I am given several hypothetical amounts and interest rates and need to find the amount of the rental payments. (Lessee-Lessor Entries; Sales-Type Lease) On January 1, 2011, Palmer Company leased equipment to Woods Corporation. The following information pertains to this lease. ...
October 22, 2012

math
Tina'goal this month is to earn$10,000.She earns $13,500 in total. What percentage did she meet her goal
October 21, 2012

business
why might a buyer want to participate in an industry consortium marketplace instead of setting up their own business
October 18, 2012

business
describe 3 departments that should be included in a small towns web site
October 18, 2012

Physics
Thank you!
October 18, 2012

Physics
would the radius be half of the 0.40m?
October 18, 2012

Physics
correction the velocity is 0.7 m/s
October 18, 2012

Physics
Determine the tension in a 40 cm long pendulum when a bob of mass 200g moving at 0.7 m.s is 15 degrees from the vertical?
October 18, 2012

math
how many feet are in 4 yards
October 17, 2012

science
Is glucose molecules broken down in both hases of respiration?
October 17, 2012

science
need help with what are the raw materials of respiration and their products?
October 17, 2012

english
Is the verb intransitive or transitive in this sentence? Jazz began in New Orleans.
October 17, 2012

GEN 105
• Describe how each practice activity reinforced or contradicted something about yourself
October 17, 2012

Math
What is the difference between counting the spaces between whole numbers and counting the tick marks?
October 16, 2012

Statistics
If you roll two dice what is the probablity of getting one 2? I think the answer is 1/6 but I'm not sure
October 13, 2012

chem
Yes, your states of matter are wrong. Since they are aqueous solutions, hydrogen and hydroxide should be written as (aq) not (g) since niether are gases.
October 13, 2012

physics
what device could use th earth's magnetic felds to produce energy and how it would work?
October 12, 2012

Math
a) Find the product (1/2x2+y2) x-y b) Simplyfy 5/3a2b x (-3/4ab3) x (-4/5a2b2) and find the value for 2= -2 and b= 1. c) Divide x (5x2 - 80 by 5x (x+4). Thanks in anticipation.
October 8, 2012

Math
what is the written form of .6045?
October 5, 2012

MATH
DIVIDE 64 BUNDLES OF NEWSPAPERS INTO TWO GROUPS SO THE RATIO IS 3 TO 5
September 30, 2012

algebra
Thank you
September 26, 2012

algebra
making linear equation from word problem At low altitudes, the altitude of a parachute and time in the air are linearly related. A jump at 2,880 ft use the US army T-10 parachute system last 120 sec. (A) find a linear model relating altitude a (in feet) and time in the air t (...
September 26, 2012

algebra
Thank you so much
September 26, 2012

algebra
making linear equation from word problem An airspeed indicator on aircraft is affected by changes in atmospheric pressure at different altitudes. A pilot can estimate the true airspeed by observing the indicated airspeed and adding it about 2% for every 1,000 feet of altitude...
September 26, 2012

algerbra
24+61+b+3a+b+3d How do you do this?!
September 24, 2012

culral anthropology
in anthropology the term culture referes to what
September 23, 2012

analytical chemisty
Calculate the pH and pOH of a 0.00002M solution of acetic acid.
September 23, 2012

chemistry
so 1508=18.36*26.37*x?
September 23, 2012

chemistry
A metal ring with a mass of 18.36 g undergoes a change in temperature of 26.37 oC. The energy change, or heat, required for this change in temperature is 1508 Joules. What is the specific heat of the ring?
September 23, 2012

Trig
A cylindrical tank, 6 foot in radius, lies on it's side parallel and against the side of a warehouse. A ladder leans against the building, passes over and just touches the tank, and has a slope of -3/4. Find the equation of the ladder and the length of the ladder
September 23, 2012

science 7 grade
You place 75 mL sea wter in a graduated cylinder with a mass of 55 grams mass of sea water and cylinder together is 140 grams what is the density of the sea water g/mL
September 23, 2012

Math
I have The Exact same problem I'm trying to Get all my missing work (the homework i dident do) Into the teacher and if your test grades are really low like mine you should probably get tutoring or ask a kid in the class to help you out But since progress reports are coming...
September 20, 2012

math
A jumbo jet carries 150 passengers, 30 in first class and the remainder in coach. If the average first class ticket is $550 and the average coach ticked is $150, how much will the airplane gross if the plane is full?
September 20, 2012

GEOMETRY
What is the distance between points (3, 1) and (0, –5)? Round to the nearest tenth.
September 19, 2012

geometry
Naomi draws a portion of a figure as shown. She wants to construct a line segment through R that makes the same angle with as .
September 19, 2012

Biology/Biotany
the rise of water in plants is presently most satisfactorily explained by which element: magnesium, sulphur, calcium, phosphorus, or manganese?
September 16, 2012

science
An airplane flies due north at 235 km/h relative to the air. There is a wind blowing at 65 km/h to the northeast relative to the ground. What are the plane's speed and direction relative to the ground?
September 16, 2012

algebra
t= ((square root of x)/4) + (x/1100), t=14, solve for x
September 15, 2012

algebra
algebra with pizzazz!In music,what does allegro means?
September 13, 2012

Health
What is bone strengthening? A. Activities that produce a force on the bones that promote bone growth and strength B. Activities that produce greater elasticity of joints C. Activities that heal injuries and diseases associated with the bones D. None of the above I need help ...
September 13, 2012

computer
assuming a disk should never get 85% full and assuming you were generating 200MB of new data per week, at what point would you need to add another hard disk?
September 12, 2012

Math
Thanks, Steve! They are stand alone questions, so I'll ask my teacher what he means.
September 11, 2012

Math
Unit circle.... ugh. Probably have to make estimates, if I'm not to use a calculator.
September 11, 2012

Math
Well, now I'm just over thinking things...
September 11, 2012

Math
Actually it probably has something to do with trig identities...
September 11, 2012

Math
Correction, I should have said convert it to radians using a calculator or convert to radians using this conversion thingy: pi/180 degrees
September 11, 2012

Math
An other question states: "Solve: sin(35)" Again, same idea, how should I take this question? Should I just convert it into radians or should I just enter it into a calculator? The way they word these review questions are confusing to me. They should really be more ...
September 11, 2012

Math
Hello, I'm doing a review sheet for math and a certain question states: "solve: ln(3/4)" What should I take solve to mean? Do I just change it's form to ln(3/4) = ln3 - ln 4 ? Or, perhaps, I need to actually enter in the value into a calculator. How would you...
September 11, 2012

windows 7
asssuming a disk should never get 85% full & assuming you were generating 200 MB per week of new data, at what point would you need to add another hard disk?
September 11, 2012

Science
What would be a good sentence to describe Prime Meridian to a fourth grader?
September 10, 2012

chem(molarity)
a buffer contains 0.010 mol of lactic acid and 0.050 mol of sodium lactate per liter . How do I find the molarity of the acid and base?
September 9, 2012

childcare
A child throws a ball with speed and accuracy when he throws a ball to his teacher but his throws are slower and less accurate when plays with a group of friends. This difference is explained by A. classical stage theory B. probility theory C. locomotion-x theory D. Piaget`s ...
September 8, 2012

Theory to Practice
What fundamental motor patterns do girls tend to have than boys? a. throwing and kicking b. hopping and skipping d. running and jumping
September 8, 2012

Theory to Practice
Which of the following is an obstacle to learning for a beginning learner? A.Knowledge of what elements of the movement to focus on B. Chronic indifference characteristic between birth and age three C. Shorter time to monitor perceptual input from the visual system D, ...
September 7, 2012

algebra
answer to 6r-6-3=15
September 6, 2012

social studies(femist)
Why do some women feel uncomfortable calling themselves feminist?
September 6, 2012

Human Services
where can I find examples for these questions? How has the way in which nonprofit organizations acquire funding changed over recent years? What implications do you see this having on the organization you have analyzed above? Consider who is giving to organizations and the ...
September 5, 2012

Elementary Statistics
Heights of women have a bell-shaped distribution with a mean of 161 cm and a standard deviation of 7 cm. Using Chebyshev’s theorem, what do we know about the percentage of women with heights that are within 2 standard deviations of the mean? What are the minimum and ...
September 4, 2012

math
A man buys 3 items for $100. Each item is 50% less than the first. Total of all 3 has to be $100. Is this possible?
September 3, 2012

Financial accounting 2
If a building cost $600,000, has an estimated residual value of $240,000, has an estimated life of 36 years, and is depreciated by the straight-line method: a) What is the annual depreciation? b) what is the book value at the end of the 20th year?
September 3, 2012

math
Write the first six terms of each of the sequences whose nth term is a)(-3)n { ____, ____, ____, ____ , ____, ____ } b)3 – 4n { ____, ____, ____, ____ , ____, ____ }
September 1, 2012

math
how many dimes equal the same total amount as 1,000,000,000 pennies?
August 30, 2012

math
explain how you know the 6 in 364,021 is NOT in the thousands place.
August 28, 2012

physics
why it is easier to tear a paper off a full roll than a mostly used one? Is it because of Newton's law?
August 26, 2012

math
Identify the property of integers being illustrated in each of the following: johmmy a. (-2)(3)€ I b. (-4)0=0 c. -2(3+4)= -2(3)+(-2)4 d. (-2)3=3(-2)
August 24, 2012

math
95(12) + 24x = 5340 solve for x Simplify the following using properties of exponents. Leave answers as powers. 6^2.2^2.3^2 =
August 21, 2012

math
Using the distributive property of multiplication over addition, we can factor as in x2 + xy = x1x + y2. Use the distributive property and other multiplication properties to factor each of the following: 47.99 + 47 (x+1)Y +(X+1) x^2y+z^x3
August 21, 2012

math
The amount of bacteria after n min if the initial amount of bacteria is q and the amount of bacteria triples every 30 sec. (Hint: The answer should contain q as well as n.)
August 18, 2012

math
If two sets are subsets of each other, what other relationships must they have?
August 18, 2012

math
The following sets of ordered pairs are functions. Give a rule that could describe each function. Please show your work. A.{(5,3),(7,5),(11,9),(14,12)} B. {(2,5),(3,10),(14,17),(5,26)}
August 18, 2012

math
it is 17 not 7
August 18, 2012

math
well just wanted to see how you worked the answer
August 18, 2012

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