Thursday

July 31, 2014

July 31, 2014

Total # Posts: 40

**Calculus**

Thanks i got it I think I just hiccuped there

**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.

**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 s...

**Precalculus**

Thank you

**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?

**algebra**

2*5^(2x)-5^(x)-1=0

**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?

**health**

same. ;)

**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 diag...

**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 ski...

**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...

**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.

**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.

**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?

**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?

**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 t...

**Math**

I finishes the math assignment but I want to make sure that I did it right.

**Math**

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

**Math**

Thanks!

**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?

**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? S...

**geometry**

x=221 Thanks Ms. Sue you are the best!

**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?

**Geometry**

A polyhedron has 33 edges and 20 faces. How many vertices does it have?

**math**

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

**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

**Math **

Ms. Sue that's public schools for ya! Thank you both for your help!!!

**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?

**math**

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

**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.

**Geometry**

Thank you MathMate for your help and the link.

**Geometry**

Describe the characteristics that a pyramid must have for it to have an axis of rotational symmetry.

**math**

but what is a non-regular acute triangle ?

**math**

yes, because it would form a pattern without gaps or overlap.

**Math**

Thanks for the help!

**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?

**Math**

Thank you for your help.

**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?

**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 lar...

**Critical thinking**

How Do a person distinguish between prejudical and nonprejudical use os rhetorical devices

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