Wednesday

January 28, 2015

January 28, 2015

Total # Posts: 42

**Physics**

A 120kg box is sliding down a hill at a constant speed. The angle of the incline is 32 degrees. Determine the normal force of the hill on the box. Determine the amount of friction on the box.
*October 30, 2014*

**chemistry**

Which of the following pairs of liquids are miscible in all proportions? Question 3 options: ethanol and oil ethanol and water gasoline and water All of the above
*October 30, 2014*

**Calculus**

Thanks i got it I think I just hiccuped there
*July 17, 2014*

**Calculus**

find the extreme values of the function and where they occur y=1/(sqrt 1-x^2). So far I have y'=x/((1-x^2)(1-x^2)^(1/2)) but I am stuck.
*July 17, 2014*

**Physics**

A 20 kg box approaches the foot of a 30 degree inclined plane with a speed of 10 m/s. the coefficient of friction between the box and the inclined plane is 0.2. (a) How far up the inclined plane will the box go? (b) If the box slides back down the inclined plane, what is its ...
*June 30, 2014*

**Precalculus**

Thank you
*June 25, 2014*

**Precalculus**

A rectangle is inscribed in a circle of radius 2. Find a function that represents the area of the rectangle in terms of x. I have (x^2)(y^2)=4 Pythagorean Theorem (y^2)=4-(x^2) y=sqrt(4-(x^2)) A=bh or A=xy A=2x*2sqrt(4-(x^2)) Is this correct or what am I doing wrong?
*June 25, 2014*

**algebra**

2*5^(2x)-5^(x)-1=0
*January 8, 2014*

**Statistics**

In a population of 500 voters, 40% belong to Party X. A simple random sample of 60 voters is taken. What is the chance that a majority (more than 50%) of the sampled voters belong to Party X?
*April 20, 2013*

**health**

same. ;)
*August 11, 2012*

**early childhood education**

1)according to the national center for education statistics which of th following is a false statement a)when it comes to grade and homework boys outperform girls in elementary secondary high school college and even graduate school. b)boys are more likely than girls to be ...
*September 28, 2011*

**early childhood education**

an important use for telephone conversation at a child care facility is to help (a)staff members understand program philosophy (b)staff members understand the reason for the childs day to day behavior (c)parents understand program philosophy (d)parents develop professional ...
*September 2, 2011*

**Literature HELP**

PLEASE Help me create a better thesis statement than this: Three arguments can be identified in “The Private History of a Campaign That Failed” that support the idea that war isn’t for everyone. The arguments are that soldiers should be adequately trained before...
*July 19, 2011*

**Writing**

The arguments are that soldiers should be adequately trained before entering a war, soldiers should consist of men not boys, and war could be traumatizing for the weak of mind.
*July 19, 2011*

**Writing**

Help me create a better thesis statement than this: Three arguments can be identified in “The Private History of a Campaign That Failed” that support the idea that war isn’t for everyone.
*July 19, 2011*

**science**

Need to prepare a lab that requires 1000ml of 1.0M HCl. You find some 3 M HCl to work with. What do you need and how would you work it out?
*February 17, 2011*

**Math**

(1.19)3 + X .49= 4.55 This is the last problem on my assignment. I tried but my teacher told me I got it wrong, help please?
*February 2, 2010*

**Math**

Every question like this I have gotten wrong: "Multiply or divide the expression below. Leave your answer as simplified as possible." (3x-1)(x+7) 10(2x-5) --------- • --------- 4(2x-5) (4x+1)(x+7) This is from the college preparatory math section 10.1.4 I need ...
*January 27, 2010*

**Math**

I finishes the math assignment but I want to make sure that I did it right.
*January 11, 2010*

**Math**

For inequality number lines would a less than or = to sign mean that that it would be a closed dot or open dot?
*January 11, 2010*

**Math**

Thanks!
*December 8, 2009*

**Math**

I need help in finding the vertex of a parabola using an equation in this form: Ax^2 + Bx+C I have a test on this tomorrow. For example: 3x^2 +1x - 2 How would I find the vertex in this?
*December 8, 2009*

**Algebra**

Write the answer to the problem as an algebraic expression. A theater ticket for adults is “A” dollars and the price of a child's ticket is “C” dollars. If 29 adults and 35 children attend the theater one night, how much money did the theater collect? ...
*November 5, 2009*

**geometry**

x=221 Thanks Ms. Sue you are the best!
*November 5, 2009*

**geometry**

Write the equation and solve the problem: A high school graduating class is made up of 512 students. There are 70 more girls than boys. How many boys are in the class?
*November 5, 2009*

**Geometry**

A polyhedron has 33 edges and 20 faces. How many vertices does it have?
*October 24, 2009*

**math**

Thank you. Why don't we use just one system, it would make things so easy!
*October 21, 2009*

**math**

Jackie goes to the store to buy some meat. The meat costs $5.80/kg. How many grams of meat could she buy for $10? is there an easy way to do this? I did a few others like it, but kg and grams is not as easy
*October 21, 2009*

**Math **

Ms. Sue that's public schools for ya! Thank you both for your help!!!
*October 20, 2009*

**Math **

If the price of gasoline in Germany is about $1 per liter, what is the equivalent price of gasoline in dollars per gallon? I know that 1 gallon =3.79 liter l liter= 0.26 gallon but I am not sure how to figure the cost?
*October 20, 2009*

**math**

I am so lost? 3.1415*12^2/4=113.094 is that right?
*October 19, 2009*

**math**

A cylindrical can of cleaner holds 1 L of liquid. What is its height if the diameter of the base is 12 cm? Round your answer to the nearest tenth of a cm.
*October 19, 2009*

**Geometry**

Thank you MathMate for your help and the link.
*October 14, 2009*

**Geometry**

Describe the characteristics that a pyramid must have for it to have an axis of rotational symmetry.
*October 14, 2009*

**math**

but what is a non-regular acute triangle ?
*October 14, 2009*

**math**

yes, because it would form a pattern without gaps or overlap.
*October 14, 2009*

**Math**

Thanks for the help!
*October 8, 2009*

**Math**

A musician plans to perform 6 selections for a concert. If he can choose from 8 different pieces, how many ways can he arrange his program?
*October 8, 2009*

**Math**

Thank you for your help.
*September 30, 2009*

**Math**

How many 5-character license plates are possible with 2 letters from the alphabet followed by 3 digits, if repetitions are allowed? if repetitions are not allowed?
*September 30, 2009*

**math**

In each case, consider what you know about the distribution and then explain why you would expect it to be or not to be normally distributed. a. The lifetimes of a set of batteries manufactured by a company in your town. b. The list of guesses of the number of marbles in a ...
*September 29, 2009*

**Critical thinking**

How Do a person distinguish between prejudical and nonprejudical use os rhetorical devices
*January 23, 2009*

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