Posts by Tom

Total # Posts: 1,497

Math
cos 2(pi/4 + x) = ?

10th us history
Why did the British fight with the Indians?

criminal justuce
what are the current administration's policies related to crime? I can not find this information, all I can find is articles about drugs

physics
In the apparatus shown in the figure (Figure 1) , m1 = 10kg and the coefficients of static and kinetic friction between m1 and the table are 0.69 and 0.32, respectively. Part A What mass of m2 will just barely set the system in motion?

criminal Justice
Thank you, but where can I find this information. I understand Rational theory is based on the assumptions that people choose their behaviors freely and are motivated by avoiding pain and the pursuit of pleasure. I just can not find information on how criminal justice ...

criminal Justice
Please help me figure out what I am searching for in this question. •Discuss your first theory(Rational Theory) and how criminal justice responses may be formed based on the assumptions of this theory.

chemistry
8.34

SS
Ms.Sue he just said it was a province. It is like a state.

SS
It is basically like a state in the U.S.

math
Yanira is 3 years older than Tim and twice as old as Hannah. Tim is 2 years older than Hannah. How old are Yanira Tim and Hannah? Explain how you did the problem and the answer. math 7 accelerated - tom, Tuesday, September 24, 2013 at 6:46pm Ms. Sue thanks for the help. I ...

math 7 accelerated
Yanira is 3 years older than Tim and twice as old as Hannah. Tim is 2 years older than Hannah. How old are Yanira Tim and Hannah? Explain how you did the problem and the answer.

Literature
A method of humorous or subtly sarcastic expression which is used to explain the direct opposite of what a word means or what actually happens in a story.

arithmetic
28,000 X .05% compounded for 33 years =

math
3.

math
(-4)-9=5 12-5=7

math
-4.

math
Well first you need to do whats inside the parentheses first because of order of operations. Lets take the denominator (top half) first. 4(2+1)^2 2=1=3 3^2=9 9x4=36 _______ Now take the second half. (1)^2= 1 3x1=3 Now since it's in a fraction from 36 over 3, you simply ...

math
200/50=4

math
3.

math
0.75/3.00=0.25 (1/4)

accelerated math
If you were to distribute 5(2+3), would you get 5(2)+ 3(5)?

Physics
Use Einstein's theory. e=mc^2.

math
I wait i'm sorry 2/5. (Same thing).

math
6/15

7th Grade
Deoxyribonucleic acid

Math
11/12-3/4=11/12-9/12=2/12=1/6..

Math
79/8 + 23/8 + 0 = = 51/4 + 0 = = 51/4 = 12 3/4

Math
Ok Im not that good at math so that's why I asked but thanks

Math
opposite of negative 31?

Math
If the following integers were plotted on a number line with twenty-five, which integer would appear on the same side of zero and have a greater distance from zero? 1. opposite of eighteen 2. negative one 3. opposite of negative thirty-one 4. twenty-four

physics
no

English
Pope Tawadros the second

statistics
In a poll of 700 selected people in the USA who are 50 years or older, 20% said they would prefer a complete overhauling of the social security system. Estimate the population proportion of the USA of 50 years or older who would prefer a complete overhauling of the social ...

statistics
It is claimed the average age of employee in a large company is 50. A sample of 36 employees is taken and the average age was 49. The standard deviation of the population was 5. Use a level of significance of .05. What do you think of this claim?

Math-probability
There are 8 standard classifications of blood type. An examination for prospective laboratory technicians consists of having each candidate determine the type for 3 blood samples. How many different examinations can be given of no 2 of the samples provided for the candidate ...

chemistry
4.5?

Math
Given f(x) = 2 cos[3(x - 60)]+4. Graph one complete cycle of the above function when -180<x<180.

Chemistry
How many liters of hydrogen needs to be reacted with chlorine to produce 21g of hydrochloric acid, at STP?

Math
The third term of a geometric series is 24 and the fourth term is 36. Determine the first term and common ratio.

math
(-16)^-2/3

Physics
A material that remains highly magnetized after a magnetization cycle has a large hysteresis area. Answer True False

Physics
In a magnetization cycle, a large hysteresis loop indicates ____. Answer the material is nonmagnetic a large amount of energy loss due to heating the size of the material is large the material will not remain well magnetized

Physics
The flux through a window whose surface is parallel to magnetic field lines is zero. Answer True False

Physics
A proton is traveling horizontally at 5.4 × 106 m/s in a direction 45o north of west. A magnetic flux density has a magnitude of 0.25 T and is directed north. What is the force on the proton? Answer 1.5 × 10-13 N, up 2.1 × 10-13 N, down 1.5 × 10-13 N, ...

Physics
A charged particle is projected into a uniform B-field. Its velocity vector is perpendicular to the B-field vector. What type of path will the particle travel? Neglect gravity. Answer straight line motion elliptical motion parabolic motion circular motion

Physics
A man stands underneath a power line carrying a current of 150 A. If the power line is 15 m above the man, what is the magnetic flux density measured by the man (Neglect the Earth's magnetic field).

Physics
You have a piece of copper with a volume of 2 cm3, and wish to form a wire having a resistance of 0.15 ƒ¶. How long should the wire be if the resistivity of copper is 1.72 ~ 10-8 ƒ¶. m?

7th grade english
The book A Child Called “It” is about the struggle of a young boy named David Pelzer who was severely emotionally and physically abused by his alcoholic mother Catherine Rovera. From being abused along to being emotionally abused to the point where David Pelzer was ...

physics
A small cylinder rests on a circular turntable that is rotating clockwise at a constant speed. The cylinder is at a distance of r = 12 cm from the center of the turntable. The coefficient of static friction between the bottom of the cylinder and the surface of the turntable is...

Python Help
The issue im having is with creating the invoice. The total charges and local taxes continues to error out

phy113
66.64mm

ITE
If you drag a file into a compressed folder, it is ________ to that folder.

math
Alicia Eastman deposited $2,000 in a savings account at the Biltmore Bank paying 6% ordinary interest. How many years will it take for her investment to amount to $2,600?

Math
Alvin, Calvin and Melvin are running laps around a track. Alvin runs a lap every 4 minutes, Calvin runs a lap every 6 minutes and Melvin runs a lap every 9 minutes. If they start off at the same point, how many minutes will it take before all three of them are back at the ...

math help mepls
180

heeeeeeeeeeelp math
90

statistics
Test the following function to determine whether it is a probability function. If it is not, then make it into a probability function. (Give your answers correct to one decimal place.) R(x) = 0.2, for x = 0, 1, 2, 3, 4 (a) List the distribution of probabilities. R(0) = R(1) = ...

math
Sorry, but this is the way it is written, that is why I do not understand it.

math
I don't know, is the answer 5-10=5 for mean????

math
Consider the probability function. (Give your answers exactly.) P(x) = 5 − x 10 , for x = 1, 2, 3, 4 (a) Find the mean. (b) Find the standard deviation.

Math
Find z, given the following. (Give your answer correct to two decimal places.) x = 56, ì = 45 and ó = 5.3 z =

Math
Find the area under the standard normal curve between z = 0.7 and z = 2.15, P(0.7 < z < 2.15). (Give your answer correct to four decimal places.)

math
Sorry I hit the wrong one, not sure who this is but it helped me too...you also answered one of my questions and I was saying thank you for it.

math
Thank you

Statistics answer check
I got 3.48 as the answer

Statistics
The survival rate during a risky operation for patients with no other hope of survival is 87%. What is the probability that exactly four of the next five patients survive this operation? (Give your answer correct to three decimal places.)

Statistics
Consider the probability function. (Give your answers exactly.) P(x) = 5 − x 10 , for x = 1, 2, 3, 4 (a) Find the mean. (b) Find the standard deviation.

Statistics
Test the following function to determine whether it is a probability function. If it is not, then make it into a probability function. (Give your answers correct to one decimal place.) R(x) = 0.2, for x = 0, 1, 2, 3, 4 (a) List the distribution of probabilities. R(0) = R(1) = ...

statistics
Find P(A or B). (Give your answer correct to two decimal places.) P(A) = 0.35, P(B) = 0.5, and P(A and B) = 0.18

Statistics
I did the same thing that Gayle done on this for x and then y which was both wrong answers.

Statistics
No it is written in book as (SS(x), so I have not ideal what to do on this one It ask for three answers in first question and 1 answer in the second part and I have missed all of it and I keep coming up with the same answers so I am not sure what I am doing on this one

Statistics
Does studying for an exam pay off? The number of hours studied, x, is compared with the exam grade received, y. x 7 7 5 5 7 y 95 90 75 85 95 (a) Complete the preliminary calculations: SS(x), SS(y), and SS(xy). Incorrect: Your answer is incorrect. . (SS(x)) Incorrect: Your ...

statistics
Sorry, did not realize that I had done it twice was working on different problems...thought I had posted another question.

statistics
Does studying for an exam pay off? The number of hours studied, x, is compared with the exam grade received, y. x 7 7 5 5 7 y 95 90 75 85 95 (a) Complete the preliminary calculations: SS(x), SS(y), and SS(xy). Incorrect: Your answer is incorrect. . (SS(x)) Incorrect: Your ...

math
if the pre-image's perimeter was 104 units, what is the images's perimeter

Math (Algebra) (Distance Between 2 Lines)
If real numbers a and b satisfy a^2 + b^2 = 64, what is the distance between the lines ax + by = 1 and ax + by = 417 ?

Math (Algebraic Manipulation) Help me please
An operation produces A−1/A from a fraction A= m/n, where m ≠ n and m ≠ 0. If the initial value of A is 24/47 and the operation is repeated 2012 times, the final output is a/b, where a and b are coprime positive integers. What is a+b?

Math (Algebra)
If positive integers x and y satisfy the equation xy−5x−10y+43=0, the sum x+y is constant. What is the value of x+y?

Math (Algebra) Remainder Theorem
What is the remainder when f(x)=x^2220 + x^2215 + x^2210 + … + x^10 + x^5 + x^0 is divided by x^4 + x^3 + x^2 + x + 1? Note that: x^0 = 1

math
Stacey used her 20% discount card to buy 7 cans of tomatoes and 15 cans of mushrooms for $10.64. The next day Brian spent $ 7.21 on 17 cans of tomatoes and 5 cans of mushrooms in a "30% off" sale. Find the undiscounted pre- sale price of each type of can.

Math (Calculus) (Implicit Differentiation)
The equation of the line tangent to (x^2+y^2)^4=16x^2y^2 at (x,y)=(−1,1) is ay = bx + c, where a, b and c are positive integers. What is the value of a+b+c?

Math (Algebraic Manipulation)
An operation produces A−1/A from a fraction A= m/n, where m ≠ n and m ≠ 0. If the initial value of A is 24/47 and the operation is repeated 2012 times, the final output is a/b, where a and b are coprime positive integers. What is a+b?

Math (Algebra) (Distance Between 2 Lines)
If real numbers a and b satisfy a^2 + b^2 = 64, what is the distance between the lines ax + by = 1 and ax + by = 417 ?

Math
Sam measured the length of an insect. He found it was between 3 1/2 inches and 3 3/10 inches long. Write a mixed number that could be the length of the insect

Math (Trigonometry)
Thank you very much! You're good! :)

Math (Trigonometry)
What is the maximum value of [9sinθ+2sin(θ+π/3)]^2?

Math (Probability)
Four players are playing a game involving choosing positions on a grid of size 3×8. Each player chooses a random position on the grid, then all players reveal their choices and a token is placed on each of the positions. The probability that the tokens form the vertices ...

Math (Percentage)
The price of a hat is reduced by a% from its regular price, and then is raised by a% from the reduced price. If the resulting price is an 81% discount from the regular price, what is a?

Math (Trigonometry)
θ is an acute angle such that tan(θ) = 12. What is the value of 5√5⋅(sinθ+cosθ)?

Math (Trigonometry)
In triangle ABC, we have AB = 16, BC = 29 and CA = √1097. What is the integer that is closest to 100 sin∠ABC?

Science
Identify six renewable (as opposed to depleted) sources of energy.

Math 112
for either standard form of the parabola, describe what happens to the shape of the parabola as p increases

Math
A rectangular livestock pen with THREE SIDES of fencing is to be built against the barn. The fencing is 1050ft long. Find the dimensions of the maximum area that can be enclosed. What is the maximum area?

math
A child’s kite is on top of a straight pine tree. A ladder is placed against the tree and touches the kite. The ladder forms a 45-degree angle with the flat ground. The base of the tree is 9 feet away from the base of the ladder. With only this information, how can you ...

english
how to do i do good on a ela multiple choice comprehension test. like can you give me some tips?

Maths
The first one can be any color. But after you draw it there will be only 9 of that color left. So the odds of drawing the same color again are 9/39.

PHYSICS
If you need me to show you how i can

PHYSICS
I don't know why that just happened?!

PHYSICS
How are you in sixth grade and doing these questions?! You must be really smart!

PHYSICS
The answer is 7m for the first one and B is yes she will

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