Friday
February 12, 2016

Posts by Star

Total # Posts: 149

Math
Thank you! :) How would you do this problem though?
February 1, 2016

Math
I don't understand how to do this, I would appreciate if someone could help explain. Two of the factors of ax^2+bx+c are (2x-2) and (x+5). Which is one of x-intercepts of y=ax^2+bx+c? Choices: -2 -1 5 1
February 1, 2016

physics
A feather is dropped onto the surface of the moon. How far will the feather have fallen if it reaches the surface in 9.00 seconds? Given: g on moon = –1.63 meters/second
April 27, 2015

Algebra 2
for the functions f(x) = 5x +50 and g(x) = 1/5x -10 evaluate both f(g(x)) and g(f(x)). Are these functions inverses? do you put them into each other?
February 22, 2015

personal finance
As a college senior, Jessica was offered a new credit card that allowed her to take a 10% discount on the first month's purchases. She accepted the offer and made purchases that totaled \$156.19. How much did she owe after the discount was deducted from the \$156.19?
January 29, 2015

Calculus
Average value of f(x) = e ^ 4xsquared on the interval [-1/4,1/4]
December 16, 2014

Microsoft Excel
25*27 19+5+309*2 25*(27 19 + 5 )+ 309 *2 (25*27 19 +5 +309)*2 (25*27 19 +5 +309)*2 25*(27 19 +5+309*2 result of 778
November 26, 2014

math
A piece of stick is 65cm long. How much less than a metre is its length? I know that 100 cm = 1 m So I minus 65 cm from 100 that equals to 35
June 7, 2014

Maths
18/60*100=30 To make sure the answer is correct you can check if it answer is right by 18/30*100%= 60%
June 7, 2014

Within an organization, the first step in human resources planning is?
May 3, 2014

B - Internet
April 17, 2014

Physics
A person pushes with a horizontal force of 25 N 4kg block, initially at rest on a horizontal table, a distance of 3m. The coefficient of kinetic friction between the block and table is 0.35. determine external work on the block-table system. the energy dissipated by friction ...
April 16, 2014

math
2 ones, 48 tenths and 5 hundreds =
January 8, 2014

Math
what is 996587*968547*6584/85
November 17, 2013

Chemistry
Element L has an average atomic mass of 54.2488 amu and is composed of two isotopes. The first has a mass of 55.2036 amu and makes up 41.030% of a standard sample. What is the mass of the second isotope? I under how to get average atomic mass but not sure how to get the second...
October 12, 2013

math x
0.051367
April 3, 2013

grammar
Phiilidelphia is located in Pennsylvania. It is located on the Delaware River. (combine the sentences with a phrase)
February 5, 2013

Chemistry
If Chelcy and Allyson reacted 2.55 grams of Mg with excess hydrochloric acid (HCl), how many grams of MgCl2 will they theoretically produce? Mg(s) + HCl (aq) → H2 (g) + MgCl2 (aq) ?g MgCl2
January 31, 2013

Chemistry
How many moles of P4O10 can be produced with 8.084e-001 moles of the limiting reagent?
January 31, 2013

geometry
A regular pentagonal pyramid has a side length of 4 mm, an apothem that measures 3 mm, and a height of 4.1 mm. What is the volume of the pyramid?
November 2, 2012

us history
I need your view on "Do you think the development of the New Word would've still taken place if it wasn't for Columbus' selfish motives?"
September 18, 2012

chemistry
the volume of a gas at 273 degree cels and 2 atm pressure is 5L. What would be its volume at 0 degree celsius and 1 atm pressure ?
July 14, 2012

physics
two forces of 10N and 7N respectively are applied simultaneously to an object . The minimum value of their resultant is, in newtons?
July 13, 2012

physics
of the following the largest quantity is a] 0.047 cm b] 47x10-4 cm c] 4.7x 10-4 cm d] 0.00047x10^2 cm e] 0.000047x10^6 cm
July 13, 2012

physics
its given in question that keep in mind the topis mass defect and then i got the options a) 4g b) less thn 4g c)more thn 4g d)8g
July 13, 2012

physics
if the mass of two particals is 2 gms each then when they combine to form a nucleus hw much will be the mass of nucleus ?
July 13, 2012

chemistry
plz help me
July 12, 2012

chemistry
i dnt understand which is number of moles i knw 60 is urea bt hw to calculate i dnot knw
July 12, 2012

chemistry
what is the molarity of a solution containing 1 mole of urea per litre of the solution ? Hw to solve this
July 12, 2012

ALGEBRA
Adams' plan. 2 3 3 2
June 10, 2012

physics
a man 60 kg skating with a speed of 10 m/s collides with 40 kg skater at rest and they cling to eachother. Find the loss in kinetic energy?
June 4, 2012

chemistry
plzzzzz ans ma question
June 3, 2012

chemistry
an engine operating between 100 degree celsius and 0 degree celsius takes 453.6 k cal of heat. The usefull work done by it is ? plz teach me the way of calculating it
June 3, 2012

chemistry
how will know the hydroxide concentration for a solution with a pH of 10 at 25 degree celsius?
June 3, 2012

chemistry
how we know that 1 mol of cabr2 is 199.89 ?
June 3, 2012

chemistry
plz ans ma question i am in a big trouble with chemistry
June 3, 2012

chemistry
how to calculate molar concentration of a 500 millimeter solution that contains 20 gram of CaBr2 ?
June 3, 2012

physics
if a period is doubled, than the length of the pendulum should be ? A) increased by root 2 b) quartered c) quadrupled d) halved e) doubled
May 29, 2012

biology
the gene for eye colour is located on ? a) x chromosome b) y chromosome c) both a and b d) non of them
May 29, 2012

biology
which of the following cannot cause change in gene pool a) mutation b) migration c) meiosis d) genetic drift
May 29, 2012

chemistry
an ideal gas in a closed inflexible container has a pressure of 6 atm and a temperature of 27 degree celsius . What will be the new pressure of the gas of temperature is decreased to -73 degree celsius? a) 2 atm b) 3 atm c) 4atm d) 8atm e) 9atm plz teach me the method also
May 28, 2012

chemistry
m getting k as 0.03465 m doin k =0.693/40x2 so m getting k as 0.03465
May 28, 2012

chemistry
m doin as k=0.693/40 and m just gettin an different ans
May 28, 2012

chemistry
stil i didnt get the ryt ans hw to calculate t1/2. Wats the ans ?
May 28, 2012

chemistry
a radioactive material is undergoin nuclear decay. After 40 minutes, 25% of the sample remains. What is the half life of the sample? Pls say the formula how to calculate it a)10 mins b) 20 mins c) 40 mins d)80 mins e) 160 mins
May 28, 2012

chemistry
6/27 = p1/-73 ths are the values which m getting frm question bt stil the last ans is like 438 which is obviously wrong
May 28, 2012

chemistry
m not getting the right answer am getting a different ans
May 28, 2012

chemistry
an ideal gas in a closed inflexible container has a pressure of 6 atm and a temperature of 27 degree celsius . What will be the new pressure of the gas of temperature is decreased to -73 degree celsius? a) 2 atm b) 3 atm c) 4atm d) 8atm e) 9atm plz teach me the method also
May 28, 2012

physics
what u mean it wil be the same as wat ?
May 28, 2012

physics
a 20 ohm and 60 ohm resistors are connected in series to a DC generator. The voltage across the 20 resistor is 80 volts. The current through the 60 ohm resistor? A) 1.0A B) 5.0 A C) is about 1.3 A D)4.0 A E) cannot be calculated
May 28, 2012

physics
an object is placed 10 cm from a concave spherical mirror whose radius of curvature is 12 cm. What is the distance of image a) 5cm b) 10 cm c)15cm d)20cm e)24cm
May 28, 2012

physics
i dno thats y m posting it here
May 28, 2012

physics
an electron moves with constant speed at right angles to a uniform magnetic flux, if the flux density were doubled, the force on the electron would be A) unaffected B) reduced to one month C) halved D) doubled E) quadrupled
May 28, 2012

physics
if a stone at the end of a string is whirled in a circle, the inward pull on the stone A) is known as the centrifugal force B) is inversely proportional to the speed of the object C) is inversely proportional to the square of the speed D) is proportional to the speed E) is ...
May 28, 2012

Management
All the above answers are correct except for #25. The correct answer is C.
May 17, 2012

algebra 2
x^2-4x-32=0 solve by factoring
May 9, 2012

Math
1. A colony of bacteria grows exponentially according to the function where N is measured in grams and t is measured in days. N(t)=100e^0.045t You may use graphical method or algebraic method. Please show work if algebraic or show the graph if graphical method - round to 2 ...
April 26, 2012

chemistry
What is the concentration of NaOH? using this solution (0.04756 M (i think its stand for Molarity) H2SO4) what is the concentration of NaOH in 10.00 ml of a solution, titrate to an end point using 24.22 ml of acid? formula that was given is (H2SO4 + 2NaOH --> Na2SO4 (aq) + ...
March 16, 2012

Science
Helium gas is added to a ballon already partially filled with helium gas the balloon inflated because the
February 5, 2012

Science
Which of the following statements describes the most serious , long term , environmental damage produced by oil spills in the ocean ?
February 5, 2012

American History
In the election of 1912, Teddy Roosevelt's Bull Moose Party platform was built around what he called the?
November 5, 2011

science
a 600 kg toy car moving at 3 m/s collides and hooks up with a 900 kg toy car at restand they move off together. What is their final velocity?
September 13, 2011

Calculus
FIND THE LIMIT As x approaches 0: tan 5 x/sin 25 x
September 12, 2011

Math
solve for x, where x is a real number. (x^2)+3x-4=14 Please show me the steps im missing one and i cant figure out what
August 19, 2011

Math
when a problem asks for domain and range which is which?
August 19, 2011

Calc AB
(x+y)^3 expand
August 18, 2011

Calc AB
(1/(x+h))-(1/x) ..simplify
August 18, 2011

fractions
line up together and shade 2 parts in for 2/5 and for 6/15 shade in 6 parts for 6/15
August 12, 2011

Pronoun Pratice
Ok I see know. Thank you so much for your time!
July 30, 2011

Pronoun Pratice
Is the sentence "that (all) credit cards are evil" correct? is it the correct use of a pronoun?
July 30, 2011

Pronoun Pratice
I have written a paragraph about credit cards using at least five different pronouns. Could you please look over it and let me know if you see any errors, if my pronoun use is correct and if the sentences are complete. If you have any input about how a sentence can be improved...
July 30, 2011

Calculus
The average value of f(x) = e ^ 4xsquared on the interval [-1/4,1/4]
July 24, 2011

English
Thank you both! I appreciate your time
July 23, 2011

English
Is this sentence correct or am I missing a comma? Is there a way to rewrite it so that it sounds better? I have learned how to properly write a complete sentence and to avoid run ons and fragments.
July 23, 2011

Grammar
Great! Thanks again for your time!
July 9, 2011

Grammar
Is Having an education plays a big part in successful financial planning. Correct? Does Having an education plays a big part in successfully planning for the future financially sound better?
July 9, 2011

Grammar
The verbs in my sentences are 1. were talking 2. plays 3. are investing 4. will have helped 5. will be planning
July 9, 2011

Grammar
Five sentences about the role of education in successful financial planning, using different verb tense in each sentence with the verb in bold. Can you please tell me if the following sentences are correct? My husband and I were talking about our financial goals. (Past ...
July 9, 2011

physics varsity
tarzan(85 kg) tries to swing across a river hanging from a monkey rope(10m)long as he reaches bottom of his swing he os travrlling at 8m/s but he doesn't realise the rope has a breaking strength of 1000N.does he make it safely across the river
May 5, 2011

Chemistry
How many liters of air (78 percent N2, 22 percent O2 by volume) at 20 degrees Celsius and 1.00 atm are needed for the complete combustion of 1.0 L of octane, C8H18, a typical gasoline component that has a density of 0.70 g/mL?
April 28, 2011

CHEM
I had the Br on the second due to the 2-bromo, and the ring on the 4th, but it was marked wrong so then I thought perhaps it should have been flipped right to left - which reading left to right would have put the Br on the 4th...I still dont understand though. Im sorry. =/
April 28, 2011

CHEM
Trying to figure out how to draw the structure 2-bromo-4-phenylpentane I thought it was a five carbon strong with the ring on the second C and a Br on the 4th - but thats not correct (or not completely correct) What am I doing wrong?
April 28, 2011

CHEM
omg that was it! I was missing the extra H on the Cl points. Thank you SO much! I am also trying to draw another one..but I will post it into a seperate question in case others need to see that as well. Thanks again!!!
April 28, 2011

CHEM
draw the structural formula for 1,3,5-trichlorocyclohexane
April 28, 2011

grammar
what is the role of education in successful financial planning?
April 5, 2011

physics
An airplane is flying with a velocity of 248 m/s at an angle of 30.0° with the horizontal, as the drawing shows. When the altitude of the plane is 2.8 km, a flare is released from the plane. The flare hits the target on the ground. What is the angle?
February 4, 2011

algebra 1
what kind of shoes does a frog wear
December 9, 2010

2x-y=-5 -2x-5y=11
December 7, 2010

Math
Use the echelon method to solve the following system. x/5+3y =31 2x-y/5=8
November 24, 2010

Math
Solve each equation. Round decimal answers to the nearest thousandth. 5(0.10)^x = 4(0.12)^x
November 24, 2010

Physics
Torque= (F)sinTheta(r) Given: F=55N d= 74cm (converted to M=0.74M) Theta=90degrees. Since, Perpendicular is equal to 90 degrees, sin90 = 1. T=55N(1)(0.74m) Tperpendicular= 41N. 45degrees. T=55(sin45)0.74 T=29N. Hope this will help :)
November 4, 2010

Assembly Language
Hello, i am new at assembly language and i just got started with this stuff. I have this assignment which doesn't make any sense to me. Can someone please help? I am using Kip Irvine's, Assembly Language for x86 Processors, 6th edition. These are the instructions to ...
September 19, 2010

computer science (Assembly language)
Hello, i am new at assembly language and i just got started with this stuff. I have this assignment which doesn't make any sense to me. Can someone please help? I am using Kip Irvine's, Assembly Language for x86 Processors, 6th edition. These are the instructions to ...
September 19, 2010

Health
What role can a bystander play in reducing incidents of bullying?
September 1, 2010

what is the antecendent and pronoun in the sentence. You have probaly read or heard aesop fables.
September 1, 2010

finance
September 1, 2010

psychology
First explain the difference between sensation and perception. Next define the just noticeable difference and sensory adaptation. Finally give examples of how both the just noticeable difference and adaption play a role in both sensation and perception
September 1, 2010

sciice
Why do you think another mistake doesn't just correct the mutation in an abnormal CF gene? What do you think the chances of this occuring would be? Compare this to the chance of some other event happening
September 1, 2010

biology;zoology
What do you think the embryological steps we see in the early development of the invertebrates tells us about evolutionary history? How did those steps evolve? Please use specific examples and be prepared to defend your answer.
September 1, 2010

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