# Posts by Philip

Total # Posts: 91

Algebra
x >= 2

Solstudies
Williamsburg, Virginia, has had a long history dating to the 17th century. The city was first named Middle Plantation and changed its name to Williamsburg in 1699.

Algebra 2
The mass of the particles that a river can transport is proportional to the sixth power of the speed of the river. A certain river normally flows at a speed of 2 miles per hour. What must its speed be in order to transport particles that are 15 times as massive as usual? Round...

Chemistry (PLZ HELP)
Faster-moving molecules is going to be the reason why hot water is better at washing things than cold water; because faster-moving molecules defines hot water.

ALGEBRA 2 HONORS
h = 4.10

ALGEBRA 2 HONORS
A container is to be made in the shape of a cylinder with a conical top. The lateral surface areas of the cylinder and cone are S1 = 2(pi)rh and S2 = 2(pi)r?(r^2 + h^2). The surface area of the base of the container is B= (pi)r^2. The height of the cylinder and cone are equal...

Math
10ab - 1, 2, 5, 10, a, b 15a - 1, 3, 5, 15, a Answer - The greatest common factor is 5a The least common factor is 1

Math
x^4 + 4 = (x^4 + 4x^2 + 4) - 4x^2 = (x^2 + 2)^2 - (2x)^2 = [(x^2 + 2) - 2x][(x^2 + 2) + 2x] = (x^2 - 2x + 2)(x^2 + 2x + 2) hope this helped

Science
Gene?

Math
Remember your numbers - The higher the negative number the less value it has. The higher the positive number to more value it has.

Measures of Central Tendency
The mean score on the test is - (Added all the numbers up, then divided by how many numbers there are ) In this case 536 / 8 = 67 The median - (middle when ordered properly from least to greatest,but when even you add them up and divide by two) In this case it is 131 / 2 = 65.5

Algebra 2 Honors
I am so dumb how did I not think of squaring. Thanks.

Algebra 2 Honors
A stone is dropped from a height of 100 feet. The time it takes for the stone to reach a height of h is given by the function t = 1/4 ?(100 - h) , where t is the time in seconds. Identify the domain and range of the function, and determine the height of the stone after 2 ...

Mat221
Answer - (x - 15)(x - 10) Because - 15 * 10 = 150 -15 + -10 = -25 If you have any questions ask me...

Geometry
Please go into more description. Examples- What is the shape? Is it a shape?

1. search it up 2. Point mutation

Math
Expand (3+i)^5, where i^2=-1 (3+i)^5=? Please and thanks.

math
the 6th term of a gp is 2000 and it ratio is 10,find it first term

maths help
using for figure table evaluate (1.487^3-1)/(1.487^3+1) show working pllllzzz

calculus help
y=cosxcosy-sinxsiny/sinxcosy+cosxsiny find dy/dx plz show me working

mathematics need help--sir steve
sorry sir pleasee show me how

mathematics need help
Given that y = e^f(x), show that y' = f'(x)e^f(x). Hence, find y' when f(x) = x. Given that y = e^f(x), show that y' = f'(x)e^f(x). Hence, find y' when f(x) = x.

maths quartic equation need help
sorry but if i do that is the root going to be in same complex number

maths quartic equation need help
the quartic equation x^4+2x^3+14x+15=0 has equal root of 1+2i find the other three root help me show step plz

maths pppllllz hellllp me too hard
determine a series if solution of the equation y"(x)+x.y'(x)+y(x)=0 show me step plz

mathematics
Let A = (1,2,5) B = {1,2,4,5,6,8} and the relation R is "less than or equal to."Representing the relation BRA in set gives??? Please show me work

PSY 202 - Abnormal Psychology
CASE STUDY Day, a 30-year old woman, has been admitted to a psychiatric hospital after a failed suicide attempt, she took a considerable amount of paraffin and an overdose of headache tablets. Her aunt found her where she was vomiting heavily and took her to a hospital. Day&#...

Chemistry
The Student integrity officer from CHEM1100 would like to talk to you. 1. Do your own assessed work. 2. Do not post copyright material to internet forums.

calculus help
integrate:dx/(3x^3-5)^3 i don,t know how to use wolframalpha plz show me step....

maths-factor
1/x-3<-1 find all the factor

integral calculus-help
please don,t use that box? thing it always confuse me

integral calculus
help me integrate dx/(3x^3-5)^3 thanks

calculus
find the derivative of d^2x/dt^2 if x^3=at^2 thanks

maths surd
(2+root(3))^6+[(2-root(3)] without using calcultor

Error corrected from last post here it is help!!!
If two distinct chords drawn from the point (a,b) on the circle x^2+y^2=ax+by when ab not equal to zero are bisected by the x-axis prove that a^2=8b^2

trigonomentry help!!!
if one of the root of the equation ax^2+bx+c=0 is four times the other show that 4b^2-25ac=0... help please show working plz

maths-help!!
find the number of divisor of the form of 4+2n (n>=0) of the integer 240

trigonomentry i need help!!
ball is ..!-------------- ! 1!\ / ! ! \90/ ! !----\/--------! 2 a rectangular pool table has it with to be 1.A ball is hit from one corner to another by bouncing off the wall,what is the lenght of the pool as shown in the diagram

Social
Change in social structure during the industrial revolution.

physics
the velocity of a car A relative to a car B is 15km/h in a direction

physics
A spring of force constant 1500N/m is acted upon by a constant force of 75N.calculate the potential energy stored in the spring.

Physic
A spring of force constant 1500newton per metre is acted by a constant force of 75newton.calculate the potential enery stored in the spring.

chemistry 2
I figured it out. Thank you!

chemistry 2
Titration of 50.0 mL of acetic acid reaches equivalence after delivery of 22.5mL of standardized NaOH 0.21 M. What is the initial concentration of acetic acid and what is the pH of the solution? What is the pH at equivalence? What is the pH adition of 20.0 mL of NaOH? What ...

PHYSICS HELP
rp = ra/7

Math
Yes it did....I kept multiplying 7*6 before I would divide....thanks! Where can I find those additional rules?

Math
Jai what answer did you get when you put the parentheses around 3+4?

Math
Insert parentheses to make the equation true. 14=50-42/3+4*6

Maths
Two aircraft are flying toward each other , both are flying at a spped of 450 mph. With a distance of 45 miles between them, how long will it take before the aircraft meet? The answer is apparently 2 minutes 30 seconds. Though I don't know how this was worked out? Many Thanks

Maths
The answer is apparently 2 minutes and 30 seconds but I cant work out how to figure this out thanks.

Maths
Two aircraft are flying toward each other , both are flying at a spped of 450 mph. With a distance of 45 miles between them, how long will it take before the aircraft meet?

math
Joe says that knowing 2x3 helps him know 4x6 is he right explain

Simplify
Simplify expression tan(-x)csc(x) ??? Cos x -cos x Sin x Sec x -sec x

Calculus
Which is the correct cofunction identity for (tan theta?) A csc(90degrees - theta) B sec (90degrees - theta) C sin (90degrees - theta) D cos (90degrees - theta) E cot (90degrees - theta)

Physics
A certain spring has a spring constant of 165 N/m. A 20kg mass is attached to the end of the spring. While the mass is at the equilibrium position, it is given a velocity of 8m/s downward. What is the total energy of the system, and aacceleration of the system when it is at ...

Economics
A firm uses a single plant with costs C = 160 + 16Q + .1Q2 and faces the price equation P = 96 - .4Q. a. Find the firm’s profit-maximizing price and quantity. What is its profit? b. The firm’s production manager claims that the firm’s average cost of production ...

AP physics
Lucy is using a programmable treadmill. She inputs a top speed into the treadmill and presses "start." The treadmill accelerates from rest at 0.100 m/s2 until it reaches that speed, after which it stays at that constant speed. Later, when she is getting tired, she ...

Pre-Cal
Find the domain of the function. sqrt of x^2-9

Chemistry
Calculate the amount of heat released in the complete combustion of 8.17 grams of Al to from Al2O3 at 25 celcius and 1 atm. The delta enthalphy change in the heat of formation for Al2O3 = 1676 KJ/mol 4Al(s) + 3O2(g) --> 2Al2O3(s)

Art and Humanities: Twentieth Century and Beyond
Prepare and conduct interviews with two people about their definition of happiness, how they gained this view, and whether they feel happiness is achievable. Choose two people who vary in age and experience. Only one of the subjects can be someone you know well. This is an ...

physics!
in the frame of the car, the ball comes in with 39 m/s speed, and bounces back at 39 m/s in the other direction. In the observer frame we need to add the 18 m/s relative speed of the car, and get 57 m/s

quantitative decision making
james and john invested ¥700 and ¥300 respectively, at the end the of one year, they divided their profits such that a third of the profit is divided equally for the efforts they have put into the business and the remaining amount of profit is divided in the ratio of ...

quantitative decision making
james and john invested ¥700 and ¥300 respectively, at the end the of one year, they divided their profits such that a third of the profit is divided equally for the efforts they have put into the business and the remaining amount of profit is divided in the ratio of ...

psychology
what are the four goals of psychology and one example for each?

Science
25 mL sample of KNO3 solution was diluted to 1.000x10^3 mL. The concentration of the final solution is .00383 M. Calculate the concentration of the original solution

Science
if 1.2 g of sodium metal is reacted with 2 mL of H20, how many grams of NaOH will be produced

physics
A car starts from rest and accelerates uniformaly at the rate of 0.98m/s in 1hr.what is its final velocity? A car starts from rest and reaches a velocity of 40m/s in 1minutes..(a)what is its acceleration?(b) If its acceleration remains constant,what will its velocity be in 15 ...

physics
A motorist increase speed from rest and in 21s reaches am a speed of 20km/hr.What is (a)the uniform acceleration in ms-2?(b)the distance covered in the time interval?

Bio
im stuck on these questions for my study guide Please help! i don't want links. thanks 1. Which of the follwoing would be an appropriate measure of the phenotypic variation of a trait in a population? a) the mean of the trait in the population b) the standard deviation of ...

Math
A 1 pound bag of candy containing 502 piecescost 16.8 cents per ounce. What is the cost of 1 piece of candy?

Chemistry
How many moles of ethanol is contained in 250.0 ml of a 1.90M ethanol solution? A. none of these B. 7.60 C. 475 D. 0.475

science
Explain why ionic compounds are formed from the left side of the periodic table reacts with nonmetalfrom the right side.

At the instant when the radius of a cone is 3 inches, the volume of the cone is increasing at the rate of 9 pi or 28.27433388 cubic inches per minute. If the height is always 3 times the radius, find the rate of change of the radius at that instant?

Chemistry
120 * 1.5/3.5 = 51.4 ml

help serve food

chemistry
Solutions of sodium hydroxide cannot be kept for very long because they absorb carbon dioxide from the air , forming sodium carbonate. the unbalanced equation is NaOH(aq) + CO2(g) = Na2CO3(aq) + H2O(l) calculate the number of grams of carbon dioxide that can be absorbed by ...

Literary Analysis and Composition
thanks for the answers got a B+

spanish
Song title - he drinks tequila she talks dirty in Spanish by Sammy Kershaw and Lorrie Morgan. Available n You Tube

physics
Use the formula for center of mass. (∑ distance * mass) / total mass = center of mass The masses are what each man is holding, the distance is where each man is from some origin. If you set the origin on one of the men, his distance * mass is 0. Since we know the center ...

History
Which of the 1st explorers made one of the 1st maps of the North American coast?

other
The Fan

social studies
It's the great plains

Calculus (Urgent Help)
Not only that, but you are wrong on number 6. A minimum value of f'(x) at x = c does NOT imply an extreme value, although the reverse is certainly true if the sign changes from - to +. f''(x) could be undefined at f'(c) which would make it a critical value of f...

Writing
What is introduction and how to write it?

ethics
Trends in immigration will continue to shape the face of the United States. What will this face look like in the year 2050? Here are the results of a Google search for US population projection 2050: http://www.google.com/search?q=US+population+projection+2050&rls=com.microsoft...

Math
The Parent group of the local head start promoted recycling in their neighborhood one saturday in march by distributing sets of blue and green recycling bins to grocery shoppers at central market place. Out of the 248 shoppers who stopped by head start's recycling ...

english- mood/tone
tks a lot

Chemistry.
Please explain how to solve this question, and why you use your method to solve it. I am very very stuck. Gold is present in seawater to the exteen of 0.15mg/ton. Assume the density of the seaswater is 1.03g/mL and determine how many Au atoms could concievably be extracted ...