Tuesday
October 21, 2014

Posts by MIKE


Total # Posts: 3,197

physics
A car traveling 95 km/h slows down at a constant 0.80 m/s^2 just by "letting up on the gas. A) Calculate the distance it travels during the second second. B) Calculate the distance it travels during ninth second.
July 8, 2011

Chemistry
Compare the water solubility and expected BP of propanol, propyl acetate, and acetic acid. Briefly explain why the difference are evident. Thanks!!
July 7, 2011

stats
If other factors are held constant, how does increasing the sample variance affect the value of the independent-measures t statistic and the likelihood of rejecting the null hypothesis?
July 3, 2011

Physics
A rectangular coil of 70 turns, dimensions 0.100 m by 0.200 m and total resistance 10.0 ohms, rotates with angular speed 32.0 rad/s about the y axis in a region where a 1.00 T magnetic field is directed along the x axis. The rotation is initiated so that the plane of the coil ...
July 2, 2011

Physics
How much heat must be transferred to each kilogram of aluminum to bring it to its melting point, 660°C, from room temperature, 20°C?
June 29, 2011

albebra
Thanks drwls, I knew the answer, I just don know how to properly express it in an algebraic formula? Thanks
June 29, 2011

albebra
The answer is the easy part, but how do I express it in an algebraic formula? Ken purchased an investment property for 245,000 and sold it at a 12% loss. How much did he sell it for?
June 29, 2011

trig
A 115 foot foot casts a 147 foot shadow, what is the degree of elevation to the sun
June 28, 2011

Math
Find the probability of the following if there are 30 students in the class who have been numbered and you use a calculator to generate random numbers between 1 and 30. A number less than 10.
June 28, 2011

overton high
two crates weigh 9kg and 14kg with a force of 195 newtons. what is the acceleratio?
June 26, 2011

statistics
Find the value of t(10, 0.01)
June 22, 2011

math
A cube has 6 sides. Each side has a number from 1 to 6. Each number is used only once.
June 18, 2011

persuasive essay
need help checking grammar errors please and how good is it? Credits cards have some positive value to them from being able to make big purchases, to making an everyday purchase. This reminds me of a quote said by John Mc Donald’s “Everything that has a positive side...
June 17, 2011

grammar
5.The external oblique fascia was then incised, and the incision was lengthened in the direction of the fibers. pls let me know all verbs in this sentence.
June 15, 2011

calculus
Differentiate. sqrt((6x^2 + 5x + 1)^3)
June 14, 2011

calculus
Differentiate. sqrt((6x^2 + 5x + 1)^3)
June 14, 2011

Algebra
Given a= -3 and b=4 and c= -5, evaluate |c-a-b|
June 13, 2011

Trig
URGENT, Please answer this question: give the value of: Tan(Arctan x+1/x-1+Arctan x-1/x)
June 11, 2011

Trig
give the value of tan(arctan x+1/x-1+arctanx-1/x)
June 9, 2011

algebra/trig
1. find domain f(x)=(sqrt(x^(2)-9))
June 8, 2011

algebra/trig
1.Find the domain f(x)=ã(x^(2)-9) 2. Find all six trig functions for (-3,4)
June 8, 2011

math
Suppose the cost of producing x items is given by C(x)=1000-x^3, and the revenue made on the sale of x-items is R(x)=100x-10x^2. Find the number of items which serves as a break-even point.
June 6, 2011

math
John owns a hotdog stand. He has found that his profit is represented by the equation P(x)=x^2 + 12x + 46, where x is the number of hotdogs. What is the most he can earn?
June 6, 2011

Algebra
x= } 1/ã2
May 31, 2011

trig
y = sin (3x-2pi)
May 30, 2011

eco
A?
May 26, 2011

HISTORY
In the eleventh and twelfth centuries, the Song Dynasty had all of the following characteristics except equal status for men and women?
May 26, 2011

History
Why was president Johnson impeached and do you think it was the right action to take? * I have to write a paragraph on this and was wondering if someone could explain it a little better to me because from what im reading it says the impeachment didnt work because they didnt ...
May 24, 2011

med
Making use of the following terms, write a fictitious medical report of about two paragraphs describing a dermatologic condition or disease. Focus the report on the onset, progression, location, and etiology of the condition or disease, and the treatment parameters. All terms ...
May 23, 2011

chem.
What is an ionic substance made from?
May 22, 2011

chem.
If 130.0 g Zn reacts, what mass of ZnCL2 are produced?
May 22, 2011

biology/honors
Charle Darwin made theory of natural selection but couldnt explain why there is variation within populations. Explain two reasons why there is variation within population ? PLEASE help me answer this question is for my test
May 20, 2011

biology/honors
How does genetic variation lead to speciation ? Can you help me answer this question please for the review test ? thank you .
May 19, 2011

biology/honors
Can someone help answer this question please is one of my study guide for the test? What are some adaptation that hominid populations developed as opposed to primates ? thank you
May 19, 2011

Math
Which is the exact value of the expression sqrt 32- sqrt 50 + sqrt 128 2 sqrt 7 7 sqrt 2 22 sqrt 2 2 sqrt 55
May 19, 2011

chemistry
Oxygen can be produced by the thermal decomposition of mercuric oxide: 2 HgO(s) → 2 Hg(l) + O2(g) How many liters of O2 are produced at 50.0°C and 0.947 atm by decomposition of 57.0 g of HgO?
May 18, 2011

science
What is the average velocity of the argon atoms in the gas phase at 75°F?
May 18, 2011

geometry
how long are the congruent legs of isosceles triangle if its base and altitude to the base are 12cm and 8 cm respectively?
May 17, 2011

geometry
miss sue can u pls help me?
May 17, 2011

geometry
how long are the congruent legs of isosceles triangle if its base and altitude to the base are 12cm and 8 cm respectively?
May 17, 2011

geometry
A photographic negative 35mm long and 24mm wide is to be enlarge to make a picture 28.8 cm long.find the width of the picture?
May 17, 2011

geometry
the sides of a triangle is 9,12,15cm..Find the sides of a similar triangle if the longest side is 20 cm
May 17, 2011

geometry
what is the ratio of 2 segments where the length of one is 8cm while that of the other is 4ocm?
May 17, 2011

geometry
X=15 y=20
May 17, 2011

geometry
a segment of 35cm long is divided in 2 segment whose ratio is 3:4 how long is each segment?
May 17, 2011

lit class
what is the allusion in this passage my mom is a draconian monster. Amy cried in her best "victim" voice to her friend jessop. "She won't let me do anything fun. yesterday she made me study vocabulary words before I could go out with my friends. that where ...
May 17, 2011

lit class
So it would be Calvin Coolidge? I thought it was john Hancock because heserved as president of the second continental congress and he became a synonym for his signature maybe I'm getting in depth I see what you are saying it just means signature in this passage.
May 16, 2011

lit class
what is the allusion in the passage from a letter written by a world war I veteran in the mid 1920's well we are finally getting what we richly deserve. the adjusted compensation act law. Even Calvin Coolidge wouldn't put his john Hancock on the bill congress, did ...
May 16, 2011

Lit Class
so it's donnybrook because it's describes from the past
May 16, 2011

Lit Class
what is the allusion in the passage watching a debate would be boring." Kristin said. "I really don't think that's how I want to spend my Saturday morning. "Oh no Mary argued. I've heard some debated where words flew like verbal donnybrooks and were ...
May 16, 2011

LIT CLASS
what is the allusion in this passage as so we conclude that despite the plethora televisions. stereo, video games, gigantic movie theater complexes and the world wide web-- all of which bombard the populace and myriad images and numberless opportunities to communicate --the ...
May 16, 2011

math
a sphere has a volume of 500/3 £k cubic centimeters. what is the total surface area, in square centimeters, of the sphere?
May 16, 2011

Pre- Algebra
3000 2 = 6000 -2-5 you cant do that so you switch the signs so its -2+-5=-7 so its 6000 times -7 hope this helped
May 15, 2011

Physics
A small light is 13.0 cm below the surface of a liquid of refractive index 1.20. Viewed from above, the light appears to illuminate a circle on the surface of the water. What is the diameter of the circle?
May 13, 2011

physics help!
how do we find out the electron charge and mass if we dont know what type it is?
May 12, 2011

help fast ,( physics)
the distance between q3 and q2 is 48 cm and between q2 and q1 is 56 cm ?? what would the answer be now?
May 12, 2011

help fast ,( physics)
this question will help me too, if only you can give abit more detail,when it comes to answering this question... please
May 12, 2011

spanish/check please
1-Yo tengo (tantas/ tantos) praticas como mi hermano answer: tantos 2- Juan toma ( tantas/ tantos) lecciones de artes marciales como Carlos. answer:tantos 3- Elena tiene( tantas/ tantos) pasatiemptos como Angelica. answer:tantas 4_ Camilo tiene(tanto/tanta) interes en el ...
May 10, 2011

Calculus
True or false. 1. If F'(x) = G'(x) on the interval [a,b] then F(b)-F(a) = G(b)-G(a). I think it's true but I just want to check my reasoning. F'(x) = G'(x) means that F(x) and G(x) differ by a constant (which may be 0). When the subtraction is done to find ...
May 10, 2011

Math
Two fire towers are 30 kilometers apart, tower A being due west of tower B. A fire is spotted from the towers, and the bearings from A and B are E 14 degrees N and W 34 degrees N, respectively. Find the distance d of the fire from the line segment AB.
May 10, 2011

Calculus
integral 5e^t-(sin(t))dt I figured this out as the answer 5e^t+cos(t). My question is if I need to put a +C at the end of the equation. Thanks for your time.
May 10, 2011

math
just did this in my homework... break even quantity F/(s-c) Revenue s(f/(s-c))
May 7, 2011

calculus
What is the indefinite integral of 6/(x ln(2x)??
May 6, 2011

stats
A particular college basketball player is a 80% free throw shooter. In a game, he took 20 free throws. Find the probability he made 18 or more of his free throws.
May 5, 2011

Algebra
Thank you for your help.
May 5, 2011

Algebra
Im having a hard time figuring out this problem: Use the function, y=-(x+1)^2 +2, to answer the following parts. The increasing interval and decreasing interval To find both I believe that: increasing : x < -1 decreasing : x > 1 So is this on solution below Increasing ...
May 5, 2011

physics
If 1200 cal of heat are added to 50 g of water initially at a temperature of 15 oC, what is the final temperature of the water?
May 4, 2011

account/check please
The two accounts used to adjust the uncollectible accounts are. A) Uncollectible Accounts Expense and Allowance for Uncollectible Accounts. B) Accounts Receivable and Uncollectible Accounts Expense. C)Accounts Receivable and Allowance for Uncollectible Accounts D)Accounts ...
May 4, 2011

account/check please
The two accounts used to adjust the uncollectible accounts are. A) Uncollectible Accounts Expense and Allowance for Uncollectible Accounts. B) Accounts Receivable and Uncollectible Accounts Expense. C)Accounts Receivable and Allowance for Uncollectible Accounts D)Accounts ...
May 4, 2011

algebra
Im having a hard time figuring out this problem: Use the function, y=-(x+1)^2 +2, to answer the following parts. Find the y-intercept y=-(0+1)^2 +2 y=-(1)^2 +2 y=-1+2 y=1 is my answer Find the x-intercept 0=-(x+1)^2 +2 0=-((x^2)+(1^2))+2 0=-x^2 - 1 + 2 sq.rt(x^2)= sq.rt(1) x=1...
May 4, 2011

Special Education
ok forgot that part.... i think I got it,.... thanks for your help
May 4, 2011

Special Education
Given at least 3 blocks of contrasting colors from the table and guiding 1 hand to hold the block, Shimon will be able to pick up the the block with one hand, 4/5 trials.at about. WHat about the above? Wow this is confusing....
May 4, 2011

Special Education
Yes so I think the part where Shimon is picking up th biggest block with one hand should be corrected.... do u have any idea how I could possibly change that..
May 4, 2011

Special Education
Given at least 3 blocks of contrasting colors from the table and guiding 1 hand to hold the block and the other to pick up the block, Shimon will be able to pick up the biggest block with one hand, 4/5 trials. There is something wrong with the above behavioral objective. Do ...
May 4, 2011

accounting
The two accounts used to adjust the uncollectible accounts are. A) Uncollectible Accounts Expense and Allowance for Uncollectible Accounts. B) Accounts Receivable and Uncollectible Accounts Expense. C)Accounts Receivable and Allowance for Uncollectible Accounts D)Accounts ...
May 4, 2011

Algebra
Is the vertex (-1,2) Increasing interval (-2,1) Decreasing interval(1,-2) Do the x-intercept =1?
May 4, 2011

Algebra
Im having a hard time figuring out this problem: Use the function, y=-(x+1)^2 +2, to answer the following parts. Find the y-intercept y=-(0+1)^2 +2 y=-(1)^2 +2 y=-1+2 y=1 is my answer Find the x-intercept 0=-(x+1)^2 +2 0=-((x^2)+(1^2))+2 0=-x^2 - 1 + 2 sq.rt(x^2)= sq.rt(1) x=1...
May 4, 2011

accounting/help please
The two accounts used to adjust the uncollectible accounts are. A) Uncollectible Accounts Expense and Allowance for Uncollectible Accounts. B) Accounts Receivable and Uncollectible Accounts Expense. C)Accounts Receivable and Allowance for Uncollectible Accounts . D)Accounts ...
May 3, 2011

English I
Is this a persuasive topic for an essay: Does television today brainwash children and teens? Yes or No? How? My english teacher says he gets it but it needs to be more persuasive and specific. How do I that? Can you give me some examples? Please and thank you.
May 3, 2011

calculus
The graph of f'(x) is shown for 0=< x =<10. The areas of the regions between the graph of f' and the x-axis are 20, 6, and 4, respectively. I'm going to describe the graph of f' since I can't post pictures. The first section of the graph goes up (like...
May 2, 2011

physics
a particle drops from the height 500m with the initial velocity at rest, and it goes into the water. a particle has a mass of 1kg. draw graphs a-t, v-t, and s-t until 10 second after it hits the water. consider the air and water resistance is measured as F air=.005v^2 N and F ...
May 2, 2011

math
Select a variable (mean or proportion) to determine if there is a difference in the two groups. Samples must be independent. Select a sample of data values (20 to 50) for each group. Then address the following (and a little more) in your project. a. Write a brief statement of ...
April 30, 2011

geometry/help
Find the area of a regular heptagon with the side 7 cm. answer 178.1 cm² can you check
April 27, 2011

Calculus 2
Write in cartesian form: r=3tan(theta)sec(theta) im working with this function here, trying to get an rcos(theta) and/or rsin(theta) so far, i am stumped. what i have so far: r^2=3r(tan(theta)sec(theta)) (x^2+y^2)=?????
April 27, 2011

english/help please
I have a project in Brave new world. I have to make a flag that represent the society .Can you give ideas or symbols to represent the different aspects of their society and what color to use too. please and thank you very much.
April 27, 2011

French
avec sa soeur et ses parents
April 27, 2011

algebra
SUBSTITUTE THE VALUE IN THE PARENTHESES FOR X - 3 TIMES FOR 5, 50 AND 120
April 26, 2011

chemistry
calculate the percent composition of the compound that forms when 222.6 g nitrogen combines completely with 77.4g oxygen.
April 26, 2011

Physics
A student standing on the ground throws a ball straight up. The ball leaves the student's hand with a speed of 13m/s when the hand is 2.3m above the ground, how long does it stay in the air?
April 26, 2011

Algebra 2
If you were to use the substitution method to solve the following system, choose the new equation after the expression equivalent to x from the first equation is substituted into the second equation. x – 2y = 2 x + 3y = 17
April 25, 2011

calculus
can not figure out problem. (the area of the region in the first quadrant between the graph of y=x sqrt (4-x^2) and the axis is ? a(2/3)sqrt2 b 8/3 c 2sqrt2 d 2sqrt3 e 16/3
April 21, 2011

chem
A 75.0 mL volume of 0.200 M NH3 (Kb=1.8x10^-5) is titrated with 0.500 M HNO3. Calculate the pH after the addition of 28.0 mL of HNO3.
April 20, 2011

chem
A 75.0 mL volume of 0.200 M NH3 (Kb=1.8x10^-5) is titrated with 0.500 M HNO3. Calculate the pH after the addition of 28.0 mL of HNO3.
April 20, 2011

Economics
In long-run equilibrium there will be no economic profit in a purely competitive static economy because: 1- barriers to entry will prevent profit from arising. 2-there will be no uncertainty, no innovations, and no monopoly. 3- there will be no need for professional managers ...
April 19, 2011

Economics
how did u find it
April 19, 2011

Economics
thanks
April 19, 2011

Economics
Suppose you deposit $5,000 in a bank which pays 10 percent interest compounded twice a year. The actual annual interest rate you receive is: a- 10 b-11 c-10.25 d-12
April 19, 2011

Math
People make mistakes. Calm down. A=P(1+r)^t A= interest P= principle interest r= interest rate t= time in years If $4500 invested at 7% interest compounded annually yeilds $15600, for how many years was the money invested?
April 19, 2011

Math
A=P(1+r)^2 A= interest P= principle interest r= interest rate t= time in years If $4500 invested at 7% interest compounded annually yeilds $15600, for how many years was the money invested?
April 19, 2011

Math
if u can give me an example if i select on how many people did not have college degree
April 18, 2011

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