# Posts by Thomas

Total # Posts: 752

college physics
A car starts has a position (in meters) given by x=kt^3 +2t where k is a constant ans t is in seconds. The velocity (in m/s) of the car at t=1 is:

college physics
Each of four particles moves along an x-axis. Their coordinates (in meters) as functions of time (in seconds) are given by: Particle #1: x(t)=2t^2-4 Particle #2: x(t)= -3t-4 Particle #3: -2t^2-4 Particle #4: 2 *[sq. root (t+1)] -4 Which of these particles are speeding up for 0...

college physics
An object thrown vertically upward with initial velocity from the surface of the Earth reaches a height H before falling back toward the Earth. If initial velocity is doubled, the object reaches a maximum height equal to ________. Ignore air resistance.

math
tropical pools sells an above ground model for p dollars each the monthly revenue for this model is given by the formula R(p)=-0.08p^2+300p revenue is the product of the price p and the demand(quanity sold) a.) factor out the price on the right hand side of the formula b.) ...

PSYCHOLOGY
1 a 2 a 3 d

chemistry
Thank You, i got it. The answer was 8.7

chemistry
When you set up the ICE chart, are you supposed to bring the 0.05 to the product side to give you an equation of x^2 / x - 0.05?

chemistry
hello, I can't seem to solve this question. i tried to look up someone else who may have asked this question. I found this girl named Sara,but her answer didn't really help me much because it did not answer the question. What is the pH when enough 0.10 M NaOH Base (in ...

chemistry
When you set up the ICE chart, are you supposed to bring the 0.05 to the product side to give you an equation of x^2 / x - 0.05?

chemistry
Wouldn't the pH be 7 for the strong acid, not 8? I'm confused....

chemistry
hello, I can't seem to solve this question. i tried to look up someone else who may have asked this question. I found this girl named Sara,but her answer didn't really help me much because it did not answer the question. What is the pH when enough 0.10 M NaOH Base (in ...

Math problems
solve- 7 x + 2 -- ---- 24 = 12 x over 3 = 224 over 720

Calculus
When air expands adiabatically (without gaining or losing heat), its pressure P and volume V are related by the equation PV^{1.4}=C where C is a constant. Suppose that at a certain instant the volume is 530 cubic centimeters and the pressure is 97 kPa and is decreasing at a ...

us history
what battle marked the beginnign of U.S involvement in Vietnam

Vectors
If |u| = 10, |v| = 8, and the angle formed between them is 60°, then u · v = .

Math
The probability that a school bus is late is 0.04. How many times would you expect the bus to be late in a 5-week period?

Math
Given the functions f and g below, what is (f o g)(11)? f(x) = x − 20 g(x) = (x − 3)2

CALCULUS
A triangle has verticies A(-2.1,3), B(7,8,-4), and C(5,0,2). Determine the area of triangle ABC.

calc
A parallelogram has area 85cm squared. The side lengths are 10 cm and 9 cm. What are the measures of the interior angles?

algebra 2
There are twenty songs from which a disc jockey can chose five to play on her program. How many different arrangements of songs are possible for the program? Please check my work 20x19x18x17x16

algebra 2
Which should be used a permutation or combination? Determine the number of different ways in which a committee of four can be chosen from a group of twelve members?

algebra 2
In how many different ways can you roll doubles in a monopoly game when you use two die?

algebra 2
if the answer has to be a fraction what would the correct answer be?

algebra 2
You roll a red die and a green die. Find the probability of rolling a four on the red die and a three on the green die.

algebra 2
If a McBurger employee is expected to work four of the seven days in a week, how many different weekly schedules are possible for the employee?

algebra 2
A caterer offers a choice of five desserts from a list of eight for the dessert bar at the prom. How many different groups of desserts could be served?

algebra 2
The nurseryman brought six different varieties of trees to plant in six locations in the park. In how many different ways can he plant the trees

algebra 2
Two cards are randomly drawn from a standard deck replacing the card after the first draw. Find the probability of drawing a Jack followed by an Ace.

algebra 2
The bag contains three red marbles, two blue marbles, and seven yellow marbles. Two marbles are randomly drawn from the bag. What is the probability of drawing a blue marble, replacing it, and then drawing a blue marble?

algebra 2
Two cards are randomly drawn from a standard deck without replacing the card after the first draw. Find the probability of drawing a spade followed by a heart. Please type your answer as a fraction.

stupids

Economics
In general terms, national fiscal policy refers to the way in which a government’s spending and taxation policies are able to influence the economy. Governments tend to use fiscal policy to control aggregate demand, price stability, economic growth and employment. Fiscal ...

4x5 5x4 10x2t5 5t10x2

corporate finance
Another option discussed by Tom, Jessica and Nolan would be to begin a regular dividend payment to shareholders. how would you evaluate this proposal?

Physics
Explain how the following changes in a reaction conditions will affect the position of the equilibrium below. A (g) + B (aq) C (s) + heat 1. The temperature of reaction is raised by 20 degrees C 2. As the reacton progresses, more of the compound B is added to the reaction ...

physics
A proton resistor spring system in a magnetic field going out of the page has a mass of proton 1.67*10^-27 kg, a spring constant k=500 N/m and the resistor has r=5Ω. The magnetic field strength is 0.8T. a) When released from rest, calculate the maximum displacement. b) ...

physical
A proton resistor spring system in a magnetic field going out of the page has a mass of proton 1.67*10^-27 kg, a spring constant k=500 N/m and the resistor has r=5Ω. The magnetic field strength is 0.8T. a) When released from rest, calculate the maximum displacement. b) ...

Chemistry
A mixture of .10 mol of NO, .050 mol of H2 and .10 mol of H20 is placed in a 1 liter vessel at 300 K. The following equilibrium is established. 2 NO + 2 H2 <----> N2 + 2 H20 At equilibrium (N0) = .062 M. What are the equilibrium concentrations of H2 N2 and H20

Chemistry
A mixture of .10 mol of NO, .050 mol of H2 and .10 mol of H20 is placed in a 1 liter vessel at 300 K. The following equilibrium is established. 2 NO + 2 H2 <----> N2 + 2 H20 At equilibrium (N0) = .062 M. What are the equilibrium concentrations of H2 N2 and H20

literary terms in wreck of the hesperus

math
Mudder nature

MATH214
.022508352%

MATH214
2.3cm^3

Calculus
A large tank is filled with 200 gallons of pure water. Brine containing 1 pound of salt per gallon is pumped into the tank at the rate of 5 gallon per minute. The well-mixed solution is pumped out at the same rate. (a) Find the number A(t) of pounds of salt in the tank at any ...

how do I balance equasions in science?

Math
How do you do arrays and an expanded algorithm. 23 X 17?

calculus
The critical numbers are the values for x in which the function has a horizontal tangent line, so where the first derivative is zero. F1(x)=12x^2-72x+96 0=12x^2-72x+96 0= x^2-6x+8 0=(x-4)(x-2) The critical numbers are x=4 and x=2

math
the total cost of hiring a certain plumber is a flat rate of \$35 plus \$9.50/hr.Write an equation that shows the relationship between the quantities.

calculus - antiderivative
can someone help me find the antiderivative of: f'(x) = (x^2-1)/x where f(1)=1/2, and f(-1) = 0 Thanks!

math
identify the slope and the y-intercept for 5x + 20y = 60

Geography
I Believe U Should get a fairly decent grade

spanish
What Does This MEan?? te llams me gusta comer es coreer

pre calc
your answer is wrong.... redo the problem and move 1.5 and make it 5.125

math
no i knew that part its the rest

math
Two corresponding sides of similar polygons are in the ratio of 8:7. If the area of the smaller figure is 512 square meters, what is the area of the larger figure?

calculus
thanks for the reply... the question asks me to evaluate the limit using continuity, how do i justify my answer with continuity?

calculus
just wondering if someoen could help me with this limit..: lim arctan[(x^2 - 4)/(3x^2-6x)] x->2

math
It is a square. B) Its angles are not all congruent. C) Its diagonals are perpendicular bisectors of each other. D) None of the above

math
Suppose that a given parallelogram is not a rhombus or a rectangle. Which of the following can you conclude about this parallelogram?

math
True or false? In every triangle, the centroid, incenter, and circumcenter are collinear.

math
What is the difference between convex polygon and non convex polygon

math
Explain the difference between the following pairs of geometric figures: a simple closed curve and a nonsimple closed curve a convex polygon and a nonconvex polygon

calculus - limits
can someone help me determine that limit for the following function, as x --> -2? 2 - abs(x) / 2 + x

Which of the following bonding patterns DOES NOT happen? C-H-C =C= H-H All of these bonding patterns can happen.

math
A class elects two officers, a president and a secretary/ treasurer, from its 12 members. How many different ways can these two offices be filled from the members of the class?

math
Suppose that an experiment has four possible outcomes: A, B, C, and D. If P(A) = P(B) = P(C) and P(D) = 2P(A), what is the probability of each event?

math
The same car at three different dealerships had a median price of \$14,833.02. The mean price was \$14,544.43 and the range of prices was \$1476.24. What were the three prices?

math
84% of what number is 100

math
For a set of scores, will the interquartile range always be less than the range? Explain your answer with an example.

math
Suppose that you are the chief of maintenance for a large metropolitan hospital. You are trying to decide from what company to buy your next 5-year supply of light bulbs. Would you look to the company whose light bulbs have the greatest mean or the greatest median life? ...

math
Convert to standard notation 4.296 × 10^-5

math
Write the number in scientific notation. 0.000209 8,724,000,000

math
do you think you could explain to me which of these are not a function and why? 1.{(x,y)|y=cosx} 2.{(x,y)|x=y} 3. {(x,y)|y=3^x} 4.{(x,y)|x=3}

math
(x^n)/y^(1/2)

math
Can a percent of increase be more than 100%? Why or why not?

elementry math
Find the LCM of the numbers 24 and 32 by using the prime factorization method.

math
Find the LCM of the numbers 24 and 32 by using a. the listing multiples method.

math
You can use the prime factorization of a number, written as the product of powers of prime numbers, to find the number of factors the number has. First, express the number as a product of powers of prime numbers; for example, 36=2 to power 2 3 to power 3 Then increase each ...

math
You can use the prime factorization of a number, written as the product of powers of prime numbers, to find the number of factors the number has. First, express the number as a product of powers of prime numbers; for example, 36=2 to power 2 3 to power 3 Then increase each ...

math
i do but i get 51 and that is not a choice for an answer so i didn't know if the average had soemthing to do with it

math
10) A mobile library has 1122 books in its collection. If there are 22 shelves in the library, then how many books, on average, are stacked on each shelf?

math
Use front-end estimation with or without adjustment as indicated to find the value of the expression. 4) 10,656 - 3967 (with adjustment)

ALgebra
A spinner has five regions numbered 1 through 5. If the spinner is spun 100 times, we would expect about 20 of the outcomes to be Region 1. It can be determined that the spinner is unbalanced if x, the number of outcomes that result in Region 1, satisfies x-20/4 ¡Ý...

social studies
who was the leader of the first permanent colony?

what is an example of a nonprogrammed decision for clothing manufacturer is

wat jessica said buddy

Chemistry
Steiger nei von streiger sneiten mehr ruellen toft don wulka

Algrebra
How do i factor this? t2-16t+64

Algebra
How do i factor this? t2-16t+64

SKILLS FOR THE EFFECTIVE TEACHER AIDE
According to the Jo-Hari window model, what are hidden messages? A. Something that the sender knows and communicates to the receiver B. Something that the sender knows but doesn't communicate to the receiver C. Something that the sender hints to the receiver so he or she ...

science
I have to pee

help me unscramble this word
ouonterissl

Research Project on Computer Confidentiality
Well I feel better knowing I'm not the only one fed up with this. Stretching a yes or no answer is rough and the only help I found for any references is my Medical Assisting textbook, HIPAA, and common sense. Also found info from Google concerning Clinton's health ...

Science
How do you think the changing environment of the earth influenced the adaptations that allowed a class of vertebrates to thrive?

college psyc. statistic
Final Part of the problem: Find a) sY-Ŷ. , b) covXY., and c) the equation for the regression line. Round to three decimal places.

college psyc. statistic
A psychology student wanted to examine the value of predicting GPAs based on IQ scores. She recruited undergraduate students enrolled in an introductory psychology class and administered the IQ test (M = 100.260, SD = 12.985) and requested their GPAs from the registrar’s ...

Social Studies
what is representative assembly

social studies
Should a representative always do what his or her constituents voters want?

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