Friday

April 29, 2016
Total # Posts: 95,891

**chemisrty**

the ph of a 4.0 mol/L solution of hydrogen fluoric acid is 3.0 is this a concentrated or diluted explain I believe it is concentrated because 3.0 is higher then 0.5 mol/L but it can also be diluted
*April 7, 2016*

**math **

write the equation Eighteen less than 6 times a number is the same as 12 more than the number.
*April 7, 2016*

**Algebra, Mathematics**

Thanks
*April 7, 2016*

**MATHEMATICS**

IF W VARRIES AS D SQUARE WHAT IS THE PERCENTAGE CHANGE IN W IF DECREASED BY 30%
*April 7, 2016*

**Stat**

Of the 64 people who answered "yes" to a question, 6 were male. Of the 70 people that answered "no" to the question, 8 were male. If one person is selected at random from the group, what is the probability that the person answered "yes" or was male?
*April 7, 2016*

**life orientation**

Ways that influnces discrimination of individuals and group of south african
*April 7, 2016*

**life orientation**

Critically discuss six ways that the human rights violations influences individuals,groups and the broader south African community
*April 7, 2016*

**Math**

The table below shows the number of deaths in the U.S. in a year due to a variety of causes. For these questions, assume these values are not changing from year to year, and that the population of the United States is 312 million people. Cause Deaths Passenger car occupant 13,...
*April 6, 2016*

**Geometry**

I mean yards
*April 6, 2016*

**Geometry**

A rectangular grass area ub a park measures 50 yards by 100 yards. The city wishes to put a uniform sidewalk around the grass area which would increase the area by 459 yd ^2. What is the width of sidewalk Is it 9.18 feet
*April 6, 2016*

**Trig**

Find the length of a chord intercepted by a central angle of 25 degrees in a circle of radius 30 feet
*April 6, 2016*

**Geometry**

Is it 6.67 ft
*April 6, 2016*

**Geometry**

Henry has a patio next to his house that is 15ft by 10ft. He wants to put a uniform flower bed around three sides of the patio. The area of the flower bed is 100 ft^2. What is the width of the flower bed?
*April 6, 2016*

**Math **

The ratio of boys to girls in a math class is 5 to 3. When 3 girls and 1 boy join the class, the ratio becomes 4:3. What is the least possible number of students in the class after the new students join?
*April 6, 2016*

**Algebra**

Solve the system of equations and check your solution. x^2+y^2=25 x+2y=10 I tried but I got only the 2 x values 8 plus or minus the square root of 164 all over 2. I know the answer is wrong but I can't find my mistake. Can you show me step-by-step how to solve this system ...
*April 6, 2016*

**Geometry**

First, Area=Length*Width Original Length=3+2*Width 434=Original Length*Original Width 434=(3+2*Width)*Width 434=3*Width+2*Width^2 I solved by graphing, you can do another way if you want. Width is 14 ft. Original Length is 31 ft. Add 4 and you get the answer: 35 feet
*April 6, 2016*

**Geometry**

Roy has a patio that covers 434 ft ^2. He wants to increase his patio 196 ft ^2 by adding 4 ft to both the length and width. The length of the original patio is 3 ft more than twice the width. What is the length of the new patio
*April 6, 2016*

**Geometry**

Im having a hard time setting up the problem.
*April 6, 2016*

**Geometry**

A rectangular grass area ub a park measures 50 yards by 100 yards. The city wishes to put a uniform sidewalk around the grass area which would increase the area by 459 yd ^2. What is the width of sidewalk
*April 6, 2016*

**math**

8 hrs
*April 6, 2016*

**math**

In a science experiment, the temperature of a substance is changed from 42 degrees Fahrenheit to -54 degrees Fahrenheit at an average rate of -12 degrees per hour. Over how many hours does the change take place?
*April 6, 2016*

**math**

my answer: 1 bagel= $0.75 1 coffee= $1.00
*April 6, 2016*

**math**

At a bagel shop, 2 coffees and 4 bagels cost $6.00. Two coffees and 7 bagels cost $8.25. What is the unit price of one coffee and the unit price of one bagel?
*April 6, 2016*

**11 physics**

205.8
*April 6, 2016*

**Math**

A circular sign has a radius of 4.5 inches. What is the area of the sign to the nearest hundredth of a square inch?
*April 6, 2016*

**Social Studies**

@Ms. Sue +Ms. Sue
*April 6, 2016*

**Social Studies**

Who is Cincinnatus? A.A dictator that served for 16 days B. A dictator that served till death c.A plebeian d.a member of the senate My answer:B Plz help me
*April 6, 2016*

**percent discount (math)**

During a sale, Nancy found chalkboards on sale for $57 that had previously cost $75. What percentage is the discount?
*April 6, 2016*

**Math**

A cookie recipe calls for 1/4 cup of brown sugar for one batch of 24 cookies. How many cups of brown sugar would be needed to bake 144 cookies?
*April 6, 2016*

**Chemistry**

For the H 3 CNCO molecule, (Note: The atoms are bonded in the order CNCO, with the three H atoms bonded to the first carbon atom.) answer the following questions. What is the ideal H-C-H bond angle? (0, 30, 45, 60, 90, 109, 120, 145, or 180.) What is the ideal N-C-O bond angle...
*April 6, 2016*

**History (Mrs. Sue, check answer?)**

D is correct.
*April 6, 2016*

**slope**

y = -4x + 41 <--- is the equation ?
*April 6, 2016*

**slope**

Find the equation of the line in slope-intercept form. Slope is −4, and (9,5) is on the line.
*April 6, 2016*

**College Algebra/pre-calculus**

My answers are: (-infinity, 2) U (2, infinity0 (-infinity, 2/5)
*April 6, 2016*

**College Algebra/pre-calculus**

Find the domain (This in fraction form) f(x)=x+3 x^2-4 f(x)= (This is in Radical:2-5x) Any help, thank you!
*April 6, 2016*

**Chemistry**

That's the same thing i chose but I'm confused.
*April 6, 2016*

**College Algebra**

Oh my god, thank you so so much! :-)
*April 6, 2016*

**College Algebra**

Question: Given f(x)=x^2+3x x such that f(x)=4 (ie y=4, what is x?) I am honestly very confused by this question to even attempt to do it. Though here is what I have on the rest of my sheet as my answers. Please correct me if I'm wrong. Thank you! Given f(x)=x^2+3x A. f(2...
*April 6, 2016*

**english composition ll**

the drake equation represents an elaborated type of blank definition a. standard b. complex c. distended d. extended I choose b
*April 6, 2016*

**Language**

1. In the 1800s, it was believed women were good at working on projects to improve the community because (5 points) women were better leaders than men. women were better planners than men. women were more emotional than men. ****women were more moral than men. 2. Which of ...
*April 6, 2016*

**Biology**

I am supposed to make different ligations. These are the stocks I am given: Cut pET41a(+) DNA: 25 ng/ul egfp insert DNA: 7 ng/ul Uncut pET-41a(+)/EGFP recombinant plasmid DNA: 25 ng/ul This is the ligation I am supposed to make: Ligation #1: 1:1 molar ratio pET-41a(+) vector: ...
*April 6, 2016*

**trig**

2(sinx)^2-5cosx-4=0 Solve for all solutions between [0,2pi]
*April 5, 2016*

**precalculus**

2(sinx)^2-5cosx-4=0
*April 5, 2016*

**Science**

Thanks
*April 5, 2016*

**Science**

If you find a mysterious organism, how can you figure out whether or not it is a plant?
*April 5, 2016*

**Geometry**

The expression (n+3) represents the measure of an exterior angle of a regular 18 gon. What is the value of n in the expression
*April 5, 2016*

**Geometry**

Would it be 22
*April 5, 2016*

**Geometry**

I know the n-2 rule but on this question it says a-4 instead of -2 so that confuses me on what to do..
*April 5, 2016*

**Geometry**

The expression (a-4) represents the measure of an interior angle of a regular 20-gon. WHat is the value of a in the expression
*April 5, 2016*

**Geometry**

A rectangular grass area ub a park measures 50 yards by 100 yards. The city wishes to put a uniform sidewalk around the grass area which would increase the area by 459 yd ^2. What is the width of sidewalk
*April 5, 2016*

**Geometry**

Is it 21 feet
*April 5, 2016*

**Geometry**

mr james has a swimming pool in his backyard that is 10 ft by 15 ft he wants to put a concrete sidewalk with uniform width around his pool so that the pool and sidewalk cover a combined area in his backyard of 336 ft ^2. What is the width of the sidewalk?
*April 5, 2016*

**Spanish**

Nevermind. It was a favor de
*April 5, 2016*

**Spanish**

Nvm...
*April 5, 2016*

**Spanish**

NVM I figured most of it out I just need hel on the last 2
*April 5, 2016*

**Chemistry**

For the H 3 CNCO molecule, (Note: The atoms are bonded in the order CNCO, with the three H atoms bonded to the first carbon atom.) answer the following questions. What is the ideal H-C-H bond angle? (0, 30, 45, 60, 90, 109, 120, 145, or 180.) What is the ideal N-C-O bond angle...
*April 5, 2016*

**life oriantation**

need answers
*April 5, 2016*

**Chemistry**

Draw the most important Lewis structure for the H 3 CNCO molecule. (Note: The atoms are bonded in the order CNCO, with the three H atoms bonded to the first carbon atom.) After you have identified the most important Lewis structure, answer the following questions. What is the ...
*April 5, 2016*

**Chemistry**

Which of the following molecules is/are bent or V-shaped? C2H2 SiF4 H2S SO2 CF4 HCN NH3 COS H2O O3 SO3 AsH3 CS2 BF3 N2O HN3 PF3
*April 5, 2016*

**Chemistry**

Which of the following molecules is/are nonpolar? H2S O3 COS C2H2 SO2 SiF4 PF3 HCN NH3 CS2 HN3 SO3 CF4 BF3 H2O N2O AsH3
*April 5, 2016*

**Math**

The table below shows the number of deaths in the U.S. in a year due to a variety of causes. For these questions, assume these values are not changing from year to year, and that the population of the United States is 312 million people. Table: Cause Deaths Passenger car ...
*April 5, 2016*

**social studies { somebody please help me please**

2 is c
*April 5, 2016*

**Algebra**

How do you do:4x-6y-3=7x+2y-4=-2x+3y+24 Thankyou
*April 5, 2016*

**Chemistry**

Explain why heat or acid causes the protein to unfold? What is happening chemically? Is this correct what I am saying? if not please help. The folding of proteins is mostly the result of intermolecular forces of attraction such as hydrogen bonding. Both hear and acid (H+) can ...
*April 5, 2016*

**math**

points a(-2,1), B(-2,6), and C(1,3) are the vertices of a triangle. Ex[plain how to find the length of segment BC
*April 4, 2016*

**science**

density of gold is 19.32 g/cm^3.A piece of gold leaf is 2.50 cm on each side and 0.100 mm thick,How many atoms of gold are in this piece of gold leaf?
*April 4, 2016*

**Math**

Use the properties of logarithms to rewrite each expression so that it contains only one logarithm. A. log3(5) + log3(m)
*April 4, 2016*

**world history**

how did the schlieffen plan war on the eastern front differ from the war on the western front
*April 4, 2016*

**Geography**

Border Dispute between India and Nepal Did it relate to a river?
*April 4, 2016*

**Geography**

Wait Im actually thinking Operational because in my book it gives an example where it says "If one state wants to limit migration while the other does not, a dispute may arise" Which is sort of like "Pakistan wants Kashmir inside but India wants to leave it?"
*April 4, 2016*

**Geography**

It's not Definitional not Allocational I think it's Locatioanl
*April 4, 2016*

**Geography**

Definitional-legal language of the boundary agreement Locational- center on the delimitation and possibly the demarcation of the boundary Operational- involve neighbors who differ over the way their border should function Allocational- involves natural resource
*April 4, 2016*

**Geography**

Does this type of dispute relate to a Definitional Locational Operational or Allocational boundary dispute? I don't think it does but I want to make sure.
*April 4, 2016*

**Geography**

What was the border dispute between India and Pakistan? Was it with water
*April 4, 2016*

**Math Algebra 2**

Help please. I know how to compute for the rest mass but how can you solve this problem. Solve for v in m = m0/(sqrt of 1 - (v^2/c^2)
*April 4, 2016*

**Geography**

Next, its asking if any of the boundary disputes are related to a Definitional boundary, Locational boundary, Operational boundary, or a Allocational Boundary It says Definitional focuses on the legal language Locational- center on the delimitation and possibly demarcation of ...
*April 4, 2016*

**Geography**

China?
*April 4, 2016*

**Geography**

What are some boundary disputes India is having with a neighbor country?
*April 4, 2016*

**Math**

Paul wants to plant seeds in his circular vegetable garden that has a diameter of 20 feet. Each bag of seeds cover 10 feet^2. How many bags will he ned to cover his entire garden?
*April 4, 2016*

**Geography**

Thank you
*April 4, 2016*

**Geography**

Is it all of those?
*April 4, 2016*

**Geography**

Would this be correct : Arabian Sea, Bay of Bengal, Thar Desert, Ganges. Himalayas Or do I have to name physical characteristics that are on the border
*April 4, 2016*

**Geography**

These are the boundaries I think there is : Bay of Bengal, Arabian Sea, is there more and are those right
*April 4, 2016*

**Geography**

Would rivers count
*April 4, 2016*

**Geography**

For my project it says "Circle all physical characteristics that are used as a part of your country's boundaries" I am doing the country of India so wwhat would be an example of the physical characteristic used for a boundary I suppose?
*April 4, 2016*

**Science**

Is all light energy Solar energy?
*April 4, 2016*

**math**

find an equation of the line that passes through (-5,-5) and that is parallel to 5x+6y+18=0 . give the answer in slope intercept form .
*April 4, 2016*

**Rela**

Satire meme ideas?
*April 4, 2016*

**Math**

Phil had a pizza that was divided into 8 equal parts she ate 3 of them Dan has a pizza that is the same size but his is divided into 4 equal parts who ate more pizza
*April 4, 2016*

**Physics**

a merry-go-round of radius 2 m and a moment of inertia 651 kgmm is stationary. a 78 kg woman runs at 1.6 m/s and jumps on tangentially to the rim of the merry-go-round. what is the final angular velocity of the merry-go-round?? 0.383 rad/s? 17.672 rad/s? 0.554 rad/s? 0.259 rad...
*April 4, 2016*

**math**

determine the amplitude, period, and phase shift of the following functions: y=3cos(2x-pi), y=3sin(2x-pi),y=-5sin(2x=pi over 2)
*April 4, 2016*

**math**

determine the amplitude and period for each function: y=4sin x, y=2sin4x,y=-3sin2pi x, y=-3cos x, y=-3cos pi over 2 x
*April 4, 2016*

**math**

he table below shows the number of deaths in the U.S. in a year due to a variety of causes. For these questions, assume these values are not changing from year to year, and that the population of the United States is 312 million people. table: Cause Deaths Passenger car ...
*April 4, 2016*

**Math **

The figure below are similar. Their rectangles, find the value of x. Skinny triangle has a 2 on top, and a 4 on the side. Bigger rectangle is side ways, it has a 8 on top and a x on the side
*April 4, 2016*

**life orientation **

Three human rights violations or discriminations and give example of such violations
*April 4, 2016*

**life orientation **

Six ways that the human rights violations influences individuals,groups and the broader south african community
*April 4, 2016*

**American Intercontinental University**

CREDIT OF $1000, 18% INTEREST, PAYING $25 A MONTH, WHAT WILL BE THE BALANCE, AND HOW LONG WILL IT TAKE TO PAY OFF
*April 4, 2016*

**Math Algebra 2**

Help please. I know how to compute for the rest mass but how can you solve this problem. Solve for v in m = m0/(sqrt of 1 - (v^2/c^2)
*April 4, 2016*

**life orientation**

identify human right violation
*April 4, 2016*