Wednesday

February 10, 2016
Total # Posts: 91,486

**calc**

Find the velocity, v(t), for an object moving along the x-axis if the acceleration, a(t), is a(t) = 2t + sin(t) and v(0) = 4
*November 25, 2015*

**math**

in a class there are 28 boys and 14 girls.what fraction of the pupils are girls.
*November 25, 2015*

**1Physics**

One end of a spring is attached to the ceiling. The unstretched length of the spring is 10.0 cm. A 2.0 kg mass is hung from the other end of the spring. It is slowly lowered until it comes to rest. At this point the spring is 15 cm long. (a) What is the stiffness (spring ...
*November 25, 2015*

**Geometry**

Steve all of your answers are wrong.
*November 25, 2015*

**English**

What is an example of Aristophanes' satire of society (other than of women)?
*November 25, 2015*

**Algebra **

A square has an area of 49 square units. Find the side length and perimeter of the square.
*November 25, 2015*

**Algebra 1 Honors**

Thank you! :)
*November 25, 2015*

**Algebra 1 Honors**

8?
*November 25, 2015*

**Algebra 1 Honors**

137.4??
*November 25, 2015*

**Algebra 1 Honors**

The volume of a cylinder is 157 cubic inches. The base of the cylinder has a diameter of 5 inches. What is the height of the cylinder? Round to the nearest tenth of an inch.
*November 25, 2015*

**math**

Mary works in a factory that produces 1,000 telephones each day. When 30 telephones were sampled, it was found that 9 were defective. Estimate how many telephones are defective each day.
*November 25, 2015*

**chemistry**

how many molecules are present in a 750 ml of C6H12O6
*November 25, 2015*

**Health (STD's)**

Explain successful methods to prevent, detect, and treat communicable diseases. You don't have to give me the answer all I need is some good websites.
*November 25, 2015*

**entrepreneurship 1**

what about the pyschographics and demographics??
*November 25, 2015*

**entrepreneurship 1 **

My own bakery, but I don't know what to put for demographics, pyschographics, or buying pattern? Demographics: women 15-48 years(we accept everyone but i believe this is my topic consumer),...... pyschographics: family oriented, someone who cares about detail and ...
*November 25, 2015*

**Social Studies Urgent**

Corrections- Are they right? 3. Which of the following is NOT one of the four major advances in early cultures? (1 point) the invention of tools•• the beginnings of agriculture the discovery that the world is round the development of civilization 4. Which of the ...
*November 25, 2015*

**Chemistry**

So would the ICE table look this this: N2 O2 NO .78 .21 0 -x -x 2x .78-x .21-x 2x (2x)^2/(.78-x)(.21-x)=Kp Is that the correct set up? Thanks
*November 25, 2015*

**Chemistry **

A sample of air was passed through an electrical discharge causing the following reaction N2(g) + O2(g)->2NO(g) . Assuming that 1.00 mole of air (78% N2, 21% O2) was originally present at 1.00 atm, determine the partial pressure (in atm) of NO at equilibrium. Kp = 0.0123 at...
*November 25, 2015*

**The Novel**

If an author is skillful at representing the point of view and attitudes of a hobo, a nurse, a corporate CEO, and a variety of other diverse characters, the author is demonstrating A. the will to power. B. dramatic irony. C. first person reporting. D. negative capability.
*November 24, 2015*

**Algebra**

This is easy. Just read the lessons.
*November 24, 2015*

**math**

what is 3 degrees colder than -2
*November 24, 2015*

**MacArthur physics **

. A person kicks a rock off a cliff horizontally with a speed of 20 m/s. It takes 7.0 seconds to hit the ground, find: a) height of the cliff b) final vertical velocity c) range
*November 24, 2015*

**Social Studies**

Alright if you say so....
*November 24, 2015*

**Social Studies**

Ok thanks, but how would you define it?
*November 24, 2015*

**Social Studies**

Definition of extremist political organizations.
*November 24, 2015*

**maths**

a guy wire 27.0m long is stretched from the ground to the top of a telephone pole 22.0m high. find the angle between the wire and pole
*November 24, 2015*

**math**

the angles of elevation of the top of a house from the bottom of a tower 160m high is 26° from the top of a tower the angle of elevation is 24°. what is the height of the house if the tower and the house are 50m apart?
*November 24, 2015*

**math**

A survey team is trying to estimate the height of a mountain above a level plain. From one point on the plain, they observe that the angle of elevation to the top of the mountain is 27∘. From a point 1000 feet closer to the mountain along the plain, they find that the ...
*November 24, 2015*

**finance**

To borrow $2,200, you are offered an add-on interest loan at 10.2 percent with 12 monthly payments Equal payment Compute the EAR of the loan. EAR
*November 24, 2015*

**finite math**

what happens to the value of y as the value of x changes
*November 23, 2015*

**Finance**

Add the tax to the "before tax" to get the answer
*November 23, 2015*

**chemistry**

If we have a mixture of 0.33 moles of oxygen and 0.22 moles of carbon dioxide, the mole fraction of carbon dioxide is .
*November 23, 2015*

**Physics**

In a machine a cylinder with a mass of 80.0 g is pushed down into a hole with a spring at the bottom as shown in Figure 1. When the spring is uncompressed the cylinder rests on top of it with its end just at the entrance to the hole. The cylinder is pushed by a rod which is ...
*November 23, 2015*

**Physics**

A very large roller coaster has an initial hill that has an 85 m drop. Note that a roller coaster has no engine. After being pulled up the first hill by a chain the train moves along the track with only gravity, normal forces due to the track, friction and air drag acting on ...
*November 23, 2015*

**Physics**

For each of the following situations identify what energy transformation is taking place. (a) A child jumps out of a tree and lands on a trampoline. Consider “initial” to be the moment when they have left the tree and “final” to be the moment when they are...
*November 23, 2015*

**Physics**

This assignment is about energy. But one of the new things we’ve just learned about is spring forces, so there should be a question about them. So the first parts of this question are not about energy. One end of a spring is attached to the ceiling. The unstretched length...
*November 23, 2015*

**Physics**

A low friction cart (similar to what you use in the lab) collides with a second low friction cart. Cart A has a mass of 0.500 kg and cart B has a mass of 0.750 kg. Glider A was moving at 40.0 cm/s before the collision. Glider B was at rest. (a) The carts have velcro on them so...
*November 23, 2015*

**Math**

1/3 times 2/3 equals 2/9
*November 23, 2015*

**Physics**

A 70.0 kg boy compresses a spring by 0.500 m and slides down a frictionless slide. The slide leads into a 30° ramp that has a coefficient of kinetic friction of 0.110 with the boy. If the spring constant in the spring is 52000 N/m and the slide has a height of 41.0 m, what...
*November 23, 2015*

**Chemistry**

A sample of 5.61 grams of NaOH is dissolved into 627 mL of aqueous 0.250 M NaOH (assume no volume change). This solution is then poured into 2.16 gallons of water. (You may assume that the two volumes can be added.) What is the concentration of NaOH in the final solution? ...
*November 23, 2015*

**Algebra**

A college football coach wants to know if the is a correlation between his players' leg strength and the time it takes for them to sprint 40 yards. he sets up the following test and records the data: Every day for a week, he counts how many times each player can leg press ...
*November 23, 2015*

**Physics**

Thank you... :-)
*November 23, 2015*

**Physics**

A 79.5 kg snowboarder heads down a 28.0° hill that has a height of 62.8 m. If the hill is assumed to be frictionless and there is horizontal wind with a force of 98 N acting against the snowboarder, find the speed of the snowboarder as they reach the bottom of the hill ...
*November 23, 2015*

**Geometry**

The next question asks the amount of fencing needed to surround the city park I got 14 and 37.58
*November 23, 2015*

**Geometry**

8.6*
*November 23, 2015*

**Geometry**

For the first question I put The actual side length of AB and CA is 8,6 and BC is 10. For the second question I put the triangle is isosceles because it has two equal sides which are Ab and CA. Are these the right way to answer these questions?
*November 23, 2015*

**Geometry**

The city council is planning a new city park on a triangular plot of land formed by three intersecting streets. The designer placed the triangle on a grid to determine the side lengths and angle measures needed for the purchase and placement of a fence surrounding the park. ...
*November 23, 2015*

**Geometry**

the city council is planning a new city park on a triangular plot of land formed by three intersecting streets the designer placed the triangle on a grid to determine the side lengths and angle measures needed for the purchase and placement of a fence surrounding the park each...
*November 23, 2015*

**math**

5 ÷ 5⁄7
*November 23, 2015*

**math**

There was a pizza parlor that offered six meat toppings and three cheese toppings. How many different combinations can be made if two meat toppings and one cheese toppings are selected?
*November 23, 2015*

**Geography**

What happened to the population of New Orleans during and after Hurricane Katrina? People stayed to protect property. People evacuated and returned slowly. People evacuated, but almost all returned. People evacuated and did not return. C is false, the population of NO now is ...
*November 23, 2015*

**calculas **

4.A paper cup, which is in the shape of a right circular cone, is 16 cm deep and has a radius of 4 cm. Water is poured into the cup at a constant rate of . 3 2cm / sec (a) At the instant the depth is 5 cm, what is the rate of change of the height? (b) At the instant the radius...
*November 23, 2015*

**math**

4/5 1/4 1/2
*November 23, 2015*

**Math**

A population of bacteria growing exponentially will double in 24 hours. How long will it take for the bacterial population to triple?
*November 23, 2015*

**Math**

In a normal distribution, approximately what percentage of data items fall within one standard deviation of the mean(in both directions)?
*November 22, 2015*

**Math**

If an adult male is told that his height is within two standard deviation of the means of the normal distribution of height of adult males, what can we assume?
*November 22, 2015*

**math**

How many pounds of mixed nuts selling for $4.50 a pound should be mixed with 20 lbs of dried fruit selling for $5.50 a pound to obtain a trail mix that sells for $5 a pound?
*November 22, 2015*

**Math**

• At Sanford Brown Online, 70% of the students are men and 30% of the students are women. • If the average age of the men is 35, and the average age of the women is 45, what is the average age of all of the students?
*November 22, 2015*

**Math**

How many arrays are there for modeling a rectangular quilt with 24 paper squares?
*November 22, 2015*

**Math**

How many times does 24 go into 150
*November 22, 2015*

**probability**

no, the first or 2nd ball may also be blue. In fact, they may both be blue, giving 0 probability of 3rd blue in that case.
*November 22, 2015*

**probability**

You have a bag with 3 red, 3 white, and 2 blue balls in it. You draw three balls without replacement. What is the probability that the 3rd ball chosen is blue?
*November 22, 2015*

**Geometry**

divide a triangle by the three medians. Prove that the area of those 6 sections are congruent.
*November 22, 2015*

**Chemistry**

What type of hybrid orbitals are utilized by carbon in anthracene? >>sp2 How many ó bonds and ð bonds are there in an anthracene molecule? How many valence electrons occupy ó-bond orbitals and how many occupy ð -bond orbitals? >>26 ó ...
*November 22, 2015*

**technoligy**

those werent the last questions for final its a quick check
*November 22, 2015*

**technoligy**

If anyone was wondering, the answers are below: 1: D 2: A 3: B 4: C
*November 22, 2015*

**math**

A loan has a due date of December 20. If it is made on September 19, for how many days is the loan?
*November 22, 2015*

**Physics**

an elastic band is stretched a distance of 0.150m by a force of 100.0
*November 22, 2015*

**math**

Jessica buys a lamp that costs $35 and a table that costs $75.00. If the tax rate is 10%, what will be the total cost of the lamp and table?
*November 22, 2015*

**Calculus**

Calculate μ and σ, where σ is the standard deviation, defined by the following. σ^2 = integral between (−∞,∞) (x-μ)^2 p(x) dx The smaller the value of σ the more tightly clustered are the values of the random variable X about the...
*November 22, 2015*

**calculas**

thnk u
*November 22, 2015*

**calculas**

i didnot under stand the question ? need help Gas is escaping a spherical balloon at the rate of 4 cm3 per minute. How fast is the surface area of the balloon shrinking when the radius of the balloon is 24 cm? Given volume of sphere is V = 4/3 πr^3and the surface area S...
*November 22, 2015*

**Algebra 1**

If Tyler and Maria can paint their kitchen in 5 hours and Maria can paint it in 9 hours by herself how long would it take Tyler to do it alone?
*November 21, 2015*

**Government**

Why do some claim that judges “legislate from the bench?”
*November 21, 2015*

**Government**

How does ideology affect federal judicial appointments?
*November 21, 2015*

**biology**

A researcher is collecting qualitative data pertaining to social behaviors of deer at different times of the day. How will she most likely need to organize this data?
*November 21, 2015*

**Government**

Why does the U.S. have a dual judicial system
*November 21, 2015*

**Chemistry **

Methyl alcohol can be prepared commercially by the reaction of hydrogen with carbon monoxide. Under equilibrium conditions at 7.00 × 102 K, [H2] = 0.0720 M, [CO] = 0.200 M, and [methanol] = 0.0300 M. Find the value of Kc, and then find the value of Kp. What is the value ...
*November 21, 2015*

**Calculus**

A window is designed to be the area between a parabolic section and a straight base. The height is 0.640 m and the base is 1.60 m. What is the area of the window?
*November 21, 2015*

**Government**

What does it mean to “have standing?”
*November 21, 2015*

**Social Studies**

Yes.
*November 21, 2015*

**Language Arts**

1.) When MacNeil asks, "When before human history has so much humanity collectivity surrendered so much of its leisure to one toy, one mass diversion?" What is this persuasive technique called? A. repetition B. Generalization C. a rhetorical question D. a ...
*November 21, 2015*

**Social Studies **

The spark that set off world war one1 was the assassination of archduke franz ferdinand of what european nation? A.Austria-Hungary B.Germany C.Russia D.France Is the answer A?
*November 21, 2015*

**physics**

A hunter fires 50 g bullets from a machine gun. If each bullet moves with a velocity of 150ms−1 how many such bullets are to be fired into a tiger of mass 60 kg coming towards him with a velocity of 10ms−1 in order to stop the tiger?
*November 21, 2015*

**Maths **

Differentiation Find dy/dx for the following function y=x^2+5x^7 all over x Please help Thankyou
*November 21, 2015*

**maths**

the hcf of two numbers is 145 ,their lcm is 175.if one number is 725,the other number is
*November 21, 2015*

**Math**

Log3 (4x+1) log3(13x-5)=2
*November 21, 2015*

**Chemistry**

A 27 g sample of germanium crystal contains 44 mg of arsenic. The arsenic is substitutionally incorporated into the crystal. Germanium has a band gap of 0.66 eV and an intrinsic carrier concentration at 25o C of 4.2e+13 cm-3. At what temperature (in oC) will the intrinsic ...
*November 21, 2015*

**Physics **

A race car starts from rest on a circular track of radius 279 m. The car's speed increases at the constant rate of 0.760 m/s2. At the point where the magnitudes of the centripetal and tangential accelerations are equal, find the following a) the speed of the race car? m/s ...
*November 21, 2015*

**Government**

What is the importance of selective incorporation
*November 20, 2015*

**Biology**

6. The gene for a large single eyeball is coded by the gene sequence TTCGCTGAA. Let’s go through transcription… DNA Strand- T-T-C-G-C-T-G-A-A mRNA Strand- _____________________________ 7. Now, let’s look at the gene for green body color, which is GGACTCTAG. With...
*November 20, 2015*

**writing skills**

Instead,base your forecast on sensible proverbs that have stood the test of time. what correction should be made to this sentence?
*November 20, 2015*

**World History**

Information on Croatia's military strength
*November 20, 2015*