Monday

July 28, 2014

July 28, 2014

Total # Posts: 1,050

**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 thats 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

**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 secu...

**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 ha...

**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, d...

**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 n...

**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

**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 star...

**math help mepls**

180

**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 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 answ...

**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 answ...

**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 de...

**english**

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

**PHYSICS**

If you need me to show you how i can

**PHYSICS**

I dont know why that just happened?!

**PHYSICS**

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

**PHYSICS**

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

**PHYSICS**

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

**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

**mathematics**

Need help with these: Write the expression as a logarithm of a single quality. a) 3log[base5](a) + 4log[base5](b) - 2log[base5](c) b) 3log(2)-(1/3)log((x)^(2) - 1) I appreciate help.

**algebra**

Tom decides to make a rectangular desk top from a plywood door that was stored in the basement. The door was 2 feet longer than twice its width. To get the desired size desk he cuts 3 inches off its length and 1/2 foot off its width. If the plywood he cut off had a total area ...

**math**

find the value of k such that the equation e^(2x)=krootx has exactly one solution.

**math**

What is the value of u in the following system of linear equations? 4u + 3v = –1 3u + 2v = 1 a) 5 b)-11/2 C)-7 d)19/3

**math**

What is the value of t in the solution to this systems of linear equations? 2s – 3t = –1 3s – 4t = 0 a)–5 b)3 c)-7/3 d)4

**math**

What is the value of t in the solution to this systems of linear equations? 2s – 3t = –1 3s – 4t = 0 a)–5 b)3 c)-7/3 d)4

**la**

do you want our opinion for that?

**math**

Flight Path. In this problem you will use a cosine function to model the flight path of a plane that begins its descent from 20000 ft when it is 45 miles from the airport. Find the fuction p(x)= ACos(wx)+B that that gives the altitude in ft when the plane is x miles from the r...

**college algebra**

How much paper would you need to wrap a box 10cm wide, 25cm high, and 50cm long?

**calculus **

Flight Path. In this problem you will use a cosine function to model the flight path of a plane that begins its descent from 20000 ft when it is 45 miles from the airport. Find the fuction p(x)= ACos(wx)+B that that gives the altitude in ft when the plane is x miles from the r...

**math**

so there's a total of 15 marbles and there's 6 yellow marbles. thus the probability is 6/15

**math**

A firm issues bonds with a face value of 1000, a coupon rate of 7% and that will mature in 10 years and the market yield is 10% and pay interest semiannually what is the value. Please help

**math**

If a company issues bonds with a face value of $1000, a coupon rate of 7%, and that will mature in 10 years. The current market yield is 10%. if the bonds pay interest semiannually, what is the value of the bonds? please he;p with the formula?

**math**

If I need $25,000 in 4 years. Waht amount must i invest today if the investment earns 12% compounded semiannualy?

**Calculus 2**

Hello, I don't know what test to use for this series: Determine the sum of the following series: inf E n=1 (2^n + 9^n) / 12^n thank you!

**am literature**

what does ethos pathos and logos mean

**Math**

Randy throw a base ball straight upwards, releasing it 6 ft above the round, and giving it an initial speed of v = 128 ft/sec. Use the formula h = -16t^2 + vt + 6 ft( where t = time , h = height ) to find the maximum height of the ball to reach this height.

**math**

a factory can produce 45 containers of yogurt in t minutes, 950 grams of fruit are used for every 25 containers of yogurt b) find in terms of t the time taken by the factory to produce 100 containers of yogurt c) if t=6 find the amount of fruit used in producing containers of ...

**maths and physics**

A cannon is placed on a hillside pointing up the hill, where the hill is at an angle a Pi/4 to the horizontal. The cannon points at an angle Pi/6 to the slope. and a shot is red uphill with initial speed v0. (i) Find the maximum value of the distance between the cann...

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