Thursday
July 2, 2015

Posts by paul


Total # Posts: 811

Math
this equation is writing as ax^2+bx+c you need to find x. the equation for x is x=b/2a plug it in b=24 a=4 x=24/2x4=24/8=3 if x = 3 plug it in to your equation 4(3)^2+24(3)+39 4x9+72+39 36+72+39=147 so the vertex is (3,147) because a is 24 its positive meaning it opens up ...
November 17, 2010

science
What other applications can be used with MS Excel to exchange information and data?
November 16, 2010

algebra
Y= 7 7=3(9)+b m=3 7=27+b x=9 27 27 b=-20 -20=b y=3x-20
November 16, 2010

CALCULUS BC
a particle moves on the x-axis in such a way that its position at time t is given by x(t)=3t^5-25^3+60t. for what values of t is the particle moving to the left. a.-2<t<1 only b.-2<t<-1 and 1<t<2 c.1<t<2 only d.-1<t<1 and t>2 e.t<-2,-1<t&...
November 15, 2010

AP PHYSICS
the height of the upper falls at Yellowstone falls is 33.2m. when the water reaches the botton of the falls, its speed is 25.8 m/s. neglecting air resistance, what is the speed of the water at the to of te falls.
November 15, 2010

math - algebra
how would i solve this using the substitution method 3y=11-x 3x-y=3 thanks
November 14, 2010

physics
A girl 36 kg occupies a seat of a swing that this subject by two chains 20 m in length each. If someone drops the girl from an 8 m position below the highest of the swing. What strength exercises it on the girl when she passes through the point lower?
November 10, 2010

physics
A girl 36 kg occupies a seat of a swing that this subject by two chains 20 m in length each. If someone drops the girl from an 8 m position below the highest of the swing. What strength exercises it on the girl when she passes through the point lower?
November 10, 2010

Science
I conducted an experiment of the heat of combustion for three alcohol fuels, methyl, propyl and ethyl. The results were: Methyl - mass before was 231.81g temp of water before heating was 15 deg c. temp of water after heating was 40 deg c. mass of methyl after heating 229.92g ...
November 8, 2010

Business
How can knowledge of the direct and indirect approaches help writers write “efficiently and effectively”?
November 5, 2010

math
yeah 421 too
November 4, 2010

math
if a 1 block means ones 10 block means tens and 100 block means 100s then the number would be 842 because 8 is 2 times as much as 4 and 4 is 2 times as much as 2
November 4, 2010

math
x=?
November 3, 2010

math
just do the problum backwards if you have the answer to the square root what you do is square that number ^5x=5 5x5= 25 ^25=5 so now that you have the number being square rooted all you have to do is find our the answer to this equation 5x?=25
November 3, 2010

math
a ratio is 60:120 one way i remember this is by saying it 60 TO 120 when you say a ratio you say to and when you use a fraction you say by.
November 3, 2010

5th grade
sorry that didint work well
November 3, 2010

5th grade
ok so your parallegram looks like this 5 l----\ 4l-----\ 7 so you know that the bottom line has 2 more meters then the top so what you do is you cut that off from the shape and think of it as a 5x4 rectangle 5 ______ [\ 4 [ ] 4[ \ [ ] [__\ ------ 2 4x5=20 4x2=8 8/2=4 find the ...
November 3, 2010

math
yes
November 3, 2010

5th grade
its hard to exsplane without signs google long division
November 3, 2010

math
i think your asking what the odds are that you will pick a odd number if picked from 36 cards numbered 1-36 if so 1 is pime 2 is prime 3 is prim 5 is prime 7 is prime 11 is prime 13 is prime 17 is prime 19 is prime 23 is prime 29 is prime 31 is prime and thats it so that means...
November 3, 2010

math
or 2/5
November 3, 2010

math
yes
November 3, 2010

math
a vowel is a,e,i,o,u so count how many letters there are in the word then count how many a,e,i,o,u, letters there there are then put the number of vowels there are over the amount of letters there are in the word then simplifiy
November 3, 2010

Math
you have to put it into a vertex form y=a(x-h)^2 +k y=x+4(because of sign ||)+8 now you have to get ^2 y=a(.5x-2)^2+8 y=1(.5x-2)^2+8 now k shifts up or down IE y axis h shifts left or right IE x axis but a +h=-h and a -h=+h so your vertex would be (2,8) because h is -2 and k is 8
November 3, 2010

Math
where do you get x3 from? do you mean 3x?
November 3, 2010

math
i dont understand 3/6 dose not equal 1/3 its 1/2
November 3, 2010

math
HELP!! the area A of the circle in the figure can be represented by A(r)=pi,r^2 where r is the radius what are the resonable domain and range for each function? explain the problme before this made me make a equation of B(r)=5^2-pi,r^2 im not sure if there asking this or A(r)=...
November 3, 2010

math
3a+8=15-(9a-9) 3a+8=15-1(9a-9) 3a+8=15-9a+9 +3a +3a 12a+8=15 -8 -8 12a=7 /12 /12 a=.5833 repeating
November 3, 2010

algebra
t would be 4 because 16/2x4=2 use pemdas multiply is before divide 16/8=2 right 2=2
November 3, 2010

algebra
if the with is 12 inches and the box takes thirty then you have 18 inches of ribbon left in the equation seeing how a box is a 3 dementinal figure it has 18 inches to share between 2 sides so you divide 18 by to and get 9 so the hight of your box would be 9
November 3, 2010

Science
I need to describe what a standard operating procedure is and what procedures it may involve. Thankyou.
October 30, 2010

science
I need to describe what a standard operating procedure is and what procedures it may involve. Thankyou.
October 29, 2010

physics
A block of mass 4.253 kg is released on the track at a height 5.52 m above the level surface. It slides down the track and makes a head-on elastic collision with a block of mass 17.012 kg, initially at rest. The acceleration of gravity is 9.8 m/s2 . Calculate the height to ...
October 27, 2010

Writing
What are the rules involved when using this type of formatting? How did the formatting of those messages affect their level of success? Please help with this question. thank you
October 27, 2010

Writing
Thank you very much, SraJMcGin and Ms. Sue
October 27, 2010

Writing
What are some strategies we can use to analyze our audiences? At which stage in the writing process should we analyze the audience?
October 27, 2010

Biology
Diffusion, Osmosis, Active Transport, Facilitated diffusion,
October 20, 2010

6th Grade Math
5-16/3=
October 17, 2010

chemistry
The equation for the reaction between hydrogen gas and oxygen gas is: 2H2(g) + O2(g) ---> 2H2O(l) i) How much hydrogen will react with 8g of oxygen? ii) how much water will be formed when 6g of hydrogen react? i would appreciate your help.
October 17, 2010

chemistry
The equation for the reaction between hydrogen gas and oxygen gas is: 2H2(g) + O2(g) ---> 2H2O(l) i) How much hydrogen will react with 8g of oxygen? ii) how much water will be formed when 6g of hydrogen react? i would appreciate your help.
October 17, 2010

Chemistry
In a simple titration experiment how and why are the results reproducible?
October 15, 2010

2nd grade reasoning
Explained: Look at the question: My tens digit is double my ones digit. I am less than 70 and greater than 60. what number am I? So 10’s digit is double my 1’s digit. 10's digit can only be in the range of 60 and 70, [61-69] So The 10's digit has to be 6 Read...
October 14, 2010

psychology
What will you take from this material on leadership and management and apply in your own life?
October 13, 2010

psychology
Should your boss ask you how to be a better leader and manager, what might you take from this material and suggest to him/her?
October 13, 2010

psychology
What in the material on "Groups" did you find useful? How will you apply it in your life?
October 13, 2010

Science (Bonding)
Can someone show me how to draw a dot and cross diagram for kf, showing only the outer electron shells. I remember doing it and school and learning that it was a ionic bond if i remember correctly. Thankyou.
October 13, 2010

Working in the science industry
thankyou Dr Bob222 and writeacher. All the best.
October 13, 2010

Working in the science industry
Can any one list the tasks and the precautions and give details of the job of a technician in the science industry. Many thanks. ps thankyou dr bob 222 but there was nothing there in your previous answer, can you help
October 13, 2010

Science
Dr Bob222 i can not see anything
October 12, 2010

Science
Can any one list the tasks and the precautions and give details of the job of a technician in the science industry. Many thanks.
October 12, 2010

Chemistry
How can i explain the key features of the periodic table relate to the conclusions after a titration experiment The experiment was the preperation of a standard solution of sodium carbonate and titration for the equation between hydrchloric acid and sodium carbonate Objective...
October 11, 2010

Chemistry
How can i explain the key features of the periodic table relate to the conclusions after a titration experiment
October 11, 2010

algebra
the final exam in a course will count as 30% of the total. prior to the final exam, 245 points are possible. how many points will the final exam be worth?
October 9, 2010

Chemistry
Preperation of a standard solution of sodium carbonate and titration for the equation between hydrchloric acid and sodium carbonate How can i explain the key features of the periodic table relate to the conclusions of the above experiment, i need to understand the groups, ...
October 9, 2010

Chemistry
They are formed by the _____________ of a ______________ of electrons First one is sharing and the second one is pair
October 8, 2010

Chemistry
Hello i have a few questions i need help with please, can you help me and thank you in advance..... What are covalent compounds usually formed between? I also have to fill in this sentence can you help.... They are formed by the _____________ of a ______________ of electrons ...
October 8, 2010

Chemistry Help
Calculate how many moles of NH_3 form when each quantity of reactant completely reacts 3N_2H_4(l)-->NH_3(g)+N_2(g) -2.5mol N_2H_4 -4.05mol N_2H_4 -65.8g N_2H_4 -4.52kg N_2H_4
October 5, 2010

College Physics
when the radius remains same, the speed should be increased.
September 30, 2010

religion
need help to unscramble words from the renaissance 1mgernay 2cahtcilo 3oppe 4gatrorypu 5formaretion
September 29, 2010

English
to show the other person how important he/she is to you.
September 29, 2010

English
what are gifts for?
September 29, 2010

English
what are presents for?
September 29, 2010

English
can anyone answer these questions? How do people choose what to buy? what are presents for and what do they express?
September 28, 2010

world history
Why does Marks begin with China? What was happening there in the 1400s that matters to the course of world history?
September 20, 2010

world history
Compare and contrast China and India ca. 1400. What are some important political differences? Why do you think those differences might matter in the way world history develops in the period from 1500 to 1800?
September 20, 2010

algebra 1
Lew flew to Venezuela and saw angel falls where the water drops 3,212 feet. how much higher this waterfall than the empire state building,which is 1,250 feet high?
September 19, 2010

algebra 1
16
September 19, 2010

Statistics
Hi, I have to answer if each questions is a nominal, ordinal, interval discrete, interval continuous, ratio discrete, or ratio continuous. I would like to know if my answers are correct and if wrong what is the correct answer. Thanks 1. Highest level of education completed? a...
September 19, 2010

US History
Compare and contrast China and India ca. 1400. What are some important political differences? Why do you think those differences might matter in the way world history develops in the period from 1500 to 1800?
September 17, 2010

science
What solids have particles arranged in repeating geometric patterns?
September 7, 2010

statistics
Where'd the 12 come from? PLEASE HELP!
September 7, 2010

Brown
Find The Pattern: George, Thomas, Abe, Alexander...
August 27, 2010

physic
The resistivity of gold is at a temperature of 20°C. A gold wire, 1.8 mm in diameter and 14 cm long, carries a current of 480 ma. The power dissipated in the wire is closest to:
August 4, 2010

physic
a 40.0 ohm resistor and a 90.0 ohm resistor are connected in parallel, and the combination is connected across a 120 V dc line. A)what is the resistance of the parallel combination. B)what is the total current through the parallel combination. C)what is the current through ...
August 2, 2010

trigo
bobo nung unang sumagot ,
July 31, 2010

structural analysis
a wood post 20 ft long shortens 1/4 in. under load determine the average unite strain
July 31, 2010

chemistry
In a reaction involving the iodination of acetone, the following volumes were used to make up the reaction mixture: 10 mL 4.0 M acetone + 10mL 1.0 M HCL + 10 mL 0.0050 M I2 + 20 mL H2O A student found that it took 250 seconds for the color of the I2 to disappear. What was the ...
July 26, 2010

CIS 105
My assignment: • Describe one technological device in 350 to 700 words. Include the following: When did it come (or will it potentially come) into existence? What scientific or technological reasoning explains how this potential has been (or can be) be reached? My problem...
July 25, 2010

CIS 105
I need help with the following assignment: o Distinguish between computer data represented by the state of a computer’s electrical switches and the meaningful information that is displayed to the user. I have read the course material 3 times already and I cannot ...
July 25, 2010

physic
An aluminum rod is 10.0 cm long and a steel rod is 80.0 cm long when both rods are at a temperature of15 degrees cel. Both rods have the same diameter. The rods are joined end-to-end to form a rod 90.0 cm long. The coefficients of linear expansion of aluminum and steel are2....
July 24, 2010

Calculus
If anyone can please help me solve this math problem! PLEASE!! Here is the link: img63.imageshack.us/img63/9355/img0002gp.jpg
July 22, 2010

Physic
Geophysicist have estimated that the temperature at the center of the earth’s core is 5000⁰C (or more), while the temperature of the sun’s core is about 15 million K. Express both of these temperature in Fahrenheit degrees.
July 22, 2010

pysic
A 328 kg car moving at 19.1 m/s hits from behind another car moving at 13.0m/s in the same direction. If the second car has a mass of 790kg and a new speed of 15.1m/s what is the velocity of the first car after the collision?
July 21, 2010

physi
a slab of ice floats on a freshwater lake what is the minimum volume must the slab have for a 45kg women to be able to stand on it without getting her feet wet?
July 20, 2010

physic
by how many newtons do you increase the weight of your car when you fill up your 11.5 gal gas tank with gasoline a gallon is equal to 3.788 L and the density of gasoline is 737kg/m3
July 20, 2010

Chem
Variation of the rate constant with temperature for the first-order reaction 2N2O5(g)  2N2O5(g) + O2(g) Is given in the following table. Determine graphically the activation energy for the reaction. T(K) k(s^-1) 2981.74 x 10^-5 308 6.61 x 10^-5 318 2.51 x 10^-4 328 7....
July 17, 2010

algebra
Time to swing. The period T (time in seconds for one complete cycle) of a simple pendulum is related to the length L (in feet) of the pendulum by the formula 8T^2=n ^2 L. If a child is on a swing with a 10 foot chain, then how long does it take to complete one cycle of the ...
July 15, 2010

ENG 101
My apologies, I see now that I forgot to include my answer choices. 1A, 2B, 3A, 4A, 5A, 6B, 7B, 8A, 9A, 10A, 11B, 12B, 13B. 14B, 15A, 16B, 17A.
July 10, 2010

ENG 101
I am wandering if my answers and rationale are correct. The capital X denotes my chosen answer and my rationale follows the statement choices. Comprehensive Grammar CheckPoint Read the following sentences, and focus on the grammar area specified in the left column. Then, ...
July 10, 2010

English
I agree with Writeacher. According to APA guidelines, none of the above are correct.
July 9, 2010

Math
Hello Damon im not understanding... are you saying the answer is c?
June 30, 2010

Math
Find a polynomial of degree 3 with roots 3, 4 - i. Which one is it? A.x3 - 10x + 15 B.x3 + 15x2 + 4x - 50 C.x3 - 11x2 + 41x - 51 D.x3 + 24x2 + 3x - 12
June 30, 2010

math
1500 dollars into a 6 month CD compounding daily with a 4% APR. How much do u have at the end of your six months?
June 17, 2010

math
A deck of 38 cards contains 16 blue cards, 6 red cards, and 16 yellow cards. What is the probability of randomly drawing a blue card from this deck?
June 16, 2010

History
what is Soweto Dance Theater
June 16, 2010

History
The impact of increased discrimination and segregation practices between 1876 and 1900 in the District. Be sure to describe how this discrimination and segregation diminished social, economic, and political gains which were enjoyed by black Washingtonians immediately after the...
June 9, 2010

Social studies
What is the relation between lack of freedom and poverty? Thanks, Paul
May 31, 2010

managerial economics
1. Some games of strategy are cooperative. One example is deciding which side of the road to drive on. It doesn’t matter which side it is as long as everyone chooses the same side. Otherwise, everyone may get hurt. Driver 2 Left Right Driver 1 Left 0,0 -1000 -1000 Right -...
May 17, 2010

algebra
Quan is shopping. He can buy 2 pairs of pants and 1 shirts for $79.85 ( before tax is added). He can buy 1 pair of pants and 2 shirts for $69.85 (before tax is added). To figure out how much a shirt or a pair of pants costs,you must first identify the conditions. What is one ...
May 6, 2010

algebra
Thank you Poppy and Reiny!!!!!!!!!!!! :)
May 5, 2010

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