# Posts by andrea

Total # Posts: 853

**math**

To determine whether there is a relationship between the type of school attended and verbal reasoning scores for Irish students, three samples with 25 students, in each group, were randomly selected from data used by Raferty and Hout (1985). One group of students attended ...

**math**

what is the rate of change of the function y=3

**Book comphrension **

In the book thief, how is Liesel Meminger affected by the war?

**Book comphrension **

In the book thief, how is Liesel Meminger affected by the war?

**physics**

a 5.4 kg ball slides along a friction-less, horizontal surface at 6.2 m/s. The ball then encounters a ramp which slopes upward. The ball slides up the ramp, slowing down until it stops and slides back down. what is the kinetic energy of the ball as it slides along the friction...

**Math**

Lucy can read 300 pages in 4 hours and harry can read 240 pages in 3 hours.Who can read more pages in one hour?

**English**

Where can you the worksheets you need for each lesson?

**English**

Where can you find the worksheets you need for each lesson?

**English**

After which type of assessment will you be asked to set goals for yourself?

**biology**

1. The table in Figure 12-3 showes the results of measuring the percentages of the four bases in the DNA of several different organisms. Some of the values are missing from the table. Based on Chargaff's rule, the percentages of guanine bases in chicken DNA should be ...

**Amerian government**

PLEASE PLEASE PLEASE HELP ME 1. What type of power does the Constitution grant to the Supreme Court? (1 point) executive power federal power judicial power legislative power 2. Which are examples of judicial restraint in the Supreme Court? Select all that apply. (3 points) &#...

**Math**

Two fractions with different denominators have a sum of 11/12 what are two possible addends that result in the sum?

**Physics , static fluids**

Thank you SO much for all your help!!

**Physics , static fluids**

last one of the night, I promise. Physics really isn't my thing.

**Physics , static fluids**

The density of ice is ?(ice) = 920 kg/m3, and the average density of water is ?(water) = 1.00 g/cm3. What fraction of the total volume of a block of ice is exposed when floating in water? what does this even mean?

**Physics , static fluids**

A particular object weighs 313 N in air and 264 N when immersed in alcohol of density 0.70 g/cm3. What is the volume (in L) and the density (in kg/m3) of the object? I had origionally used the 264N as the force of buoyancy and did the Fb=density*volume*g, then solved for ...

**Physics , static fluids**

I hadn't seen your answer the first time until after I posted this one, your reply to both helped! thanks so much scott!

**Physics , static fluids**

hello, I hope you can help... A diver accustomed to standard snorkel tubing of length 25 cm tries a self-made tube of length 8.6 m. During the attempt, what is the pressure difference (in kPa) between the external pressure on the diver's chest and the air pressure in the ...

**Physics**

Thanks!!

**Physics**

A diver accustomed to standard snorkel tubing of length 25 cm tries a self-made tube of length 8.6 m. During the attempt, what is the pressure difference (in kPa) between the external pressure on the diver's chest and the air pressure in the diver's lungs? I've ...

**english books**

-In Fahrenheit 451 What is Motag's numbness when hes at the subway.

**english books**

Yes, I have but I'm not sure if what I have as my answer is correct, but I said that he shows Montag that the thing he was missing in his life wasn't the actual books but the thing that was once in books.

**english books**

In the book FAHRENHEIT 451, how does Faber change Montag's view on book?

**Maths**

The angle of elevation of the top of a tower from a point 42m away from its base on level ground is 36°. Find the height of the tower

**chemistry**

Copper used in electric wires comes in two flavors (isotopes): 63Cu and 65Cu. 63Cu has an atomic mass of 62.9298 amu and an abundance of 69.09%. The other isotope, 65Cu, has an abundance of 30.91%. The average atomic mass between these two isotopes is 63.546 amu. Calculate the...

**poetry**

what's the significance of the poet's structure and style choice in the poem Dover Beach?

**History**

what's the historical significance of the Hotel des Invalides

**Math**

The sum of the ages of two student is 35. If one students age is a write an expression for the age of the other student in terms of a

**History**

What does this quote mean"Where they burn book they will also ultimately burn people"

**History**

think that all the authors had a strong belief of social justice and they encouraged equality such as socialist and communist

**History**

In the book burnings in Germany what did all the authors of the burned books had in common?

**History**

why where they called "un-German" books,

**History**

what was the motivation and the purpose of the book burnings in Germany.

**Matg**

An equilateral triangle has a perimeter of (33x + 21). What is the length of each side of the triangle?

**Wold History**

@Ms.sue

**Wold History**

1. Which statement best describes the period known as the Old Kingdom? It was a time of dynastic uncertainty. It was a time of development. It was a time of great geographic expansion.*** 2. In what way was the Nile both a benefit and a disadvantage for Egypt? It ...

**Math 6th grade**

Mr.Baker has baked some muffins. If he packs them in boxes of 4, he will have 3 left over. If he packs them in boxes of 5, he will also have 3 left over If he packs them in boxes of 6, he will have only 1 left over. Find the least possible number of muffins Mr.Baker has baked.

**physics**

A capacitor with a capacitance of C = 25.7 μF is slowly charged by a constant current of I = 45.7 nA. How long does it take to charge the capacitor to a voltage of V = 29.4 V?

**Math**

Is the value of the second 5 in 450,852,137 one-tenth the value of the first 5 ? Explain

**Socials Studies**

Métis Bison hunt rules in Northwest Canada in the 1800s

**Socials Studies**

Why were the rules of the bison hunt so strict? Why might some punishments involve destruction of property? The rules were so strict because it was dangerous and can cause death and serious injuries. Am I right? That's my answer for the first question and I need help on ...

**Physics**

Two 2.46uC point charges are located on the x axis. One is at x = 1.01m, and the other is at x = -1.01m. Determine the electric field on the y axis at y = 0.455m & Calculate the electric force on a -2.82uC charge placed on the y axis at y = 0.455m I'm using E=kq/r^2 and F=...

**Socials Studies**

Thank you for the link Ms. Sue

**Socials Studies**

Greatest risks: - if caught, they will be handed back to their masters - be severely punished - be kidnapped and sold to another master

**Socials Studies**

What do you think were the three greatest risks a fugitive slave might face on the underground railroad?

**Physics**

A playground merry-go-round of radius R = 1.92m has a moment of inertia of I = 221kgm^2 and is rotating at 14.0rev/min about a frictionless vertical axle. Facing the axle, a 29.8kg child hops onto the merry-go-round and manages to sit down on its edge. What is the new angular ...

**Physics**

A ring (hollow cylinder) of mass 2.89kg, inner radius 5.35cm, and outer radius 6.35cm rolls (without slipping) up an inclined plane that makes an angle of θ=35.6°, as shown in the figure below. At the moment the ring is at position x = 1.87m up the plane, its speed is...

**math**

solve the equation:3(x-2)^2-12=0

**math**

I'm really struggling with this word problem, please help. Alex is selling tomatoes. last week he bought some at $20 for 50 tomatoes and sold them (except for 30 rotten ones) at 120c each to make $84 profit. how many tomatoes did he buy?

**Chemistry**

A sample of oxalic acid (H2C2O4, with two acidic protons), of volume 37.09 mL was titrated to the stoichiometric point with 22.41 mL of 0.163 M NaOH(aq). What is the molarity of the oxalic acid? Answer in units of M.

**Chemistry**

A sample of sodium hydroxide of volume 11 mL was titrated to the stoichiometric point with 24.5 mL of 0.138 M HCl(aq). What is the initial molarity of NaOH in the solution? Answer in units of M.

**Chemistry**

If the reaction 2H2O2 →2H2O+O2 has a 45% yield, what is the molarity of the H2O2 solution if 2.5 L of this solution pro- duces 150 g of O2?

**Chemistry**

Suppose that 12.41 mL of 0.169 M NaOH(aq) was required to titrate 0.1579 g of an unknown acid (HX). What is the molar mass of the acid? Answer in units of g/mol.

**math**

your barangay officials are planning to raise funds to help the public library.they decided to sell 4000.00 draw tickets worth 10 each. one ticket will win the prize worth 3,500.00. five tickets will each win a prize worth 700.00 each and three tickets will each win the prize ...

**Math**

The walls are rectangles with a height of 6 feet. A pint of paint covers 50 square feet. How much paint do I need to paint the inside walls R=1.54 for three walls?

**Math**

Karl and his dad are building a playhouse, the floor is a rectangle that is 6 feet by 8 1/2 feet How much carpeting do they need for the floor? P= 6 plus 8.5 *2= 29.0 A= L*W= 6*8.5=51

**Statistics**

Assume that a procedure yields a binomial distribution with a trial repeated n times. Use the binomial probability formula to find the probability of x successes given the probability p of success on a single trial. n=19, x=15 p=.85, find P(15)

**math**

Karen mixed 1/2 cup of orange juice, 3/4 cup of pineapple juive , and 1/3 cup of grapefruit juice. How many cups of juice did she use?? Please help:)

**math**

Janice conducted a survey at the local calculator factory. She discovered that 10% of every 80 calculators did not work. Using this survey, what kind of predictions can she make about the next 400 calculators? a-not enough information b-40 will not work c-5 will not work d-8 ...

**math**

Celia has a large container in which four different kinds of coins are thoroughly mixed. She wants to take a sample of her coins to estimate which kind of coin she has the most. Which of the following methods is the best way for her to select a sample? A]taking coins until she...

**math**

tyson charges $20 per square foot of rug for a basic design. a client orders one basic rectangular-shaped rug that is 6 feet long and 4 feet wide and one basic rug shaped like a parallelogram that is not a rectangle with a base that is 8 feet long and a height that is 3 feet. ...

**science**

how are artificial flavors made

**science**

what is partially hydrogenated soybean oil and how is it made

**phy 231**

Tall buildings are flexible and undergo simple harmonic motion (SMH) when excited by wind. Suppose the top floor of a skyscraper is in SMH, swaying back and forth with a frequency of 0.181 Hz and an amplitude of 1.5 m. a.What is the maximum speed experienced by top floor ...

**phy 231**

A block of mass 0.39 kg connected to a spring with spring constant 30 N/m is oscillating on a frictionless horizontal surface. Its speed as it passes through its equilibrium position is 0.5 m/s. What is the total energy of the system in J?

**Physics**

A slab of ice with parallel surfaces floats on water. What is the angle of refraction of a light ray in water if the light ray is incident on the upper ice surface with an angle of 60° to the normal?

**grammar**

Whats the prefex and suffix for spouting

**grammar**

What's the prefix suffix and root meaning of spouting

**calculus**

A ship, proceeding southward on a straight course at the rate of 12 miles/hr is, at noon, 40 miles due north of a second ship, which is sailing west at 15 miles/hr. a) How fast are the ships approaching each other 1 hour later? b) Are the ships approaching each other or are ...

**calculus**

An angler has a fish at the end of his line, which is being reeled in at the rate of 2 feet per second from a bridge 30 feet above the water. At what speed is the fish moving through the water towards the bridge when the amount of line out is 50 feet? (Assume the fish is at ...

**calculus**

The sales(in millions) of a DVD recording of a hit movie t years from the date of release is given by a) Find the rate of which the sales are changing at time t. b) How fast are the sales changing at the time the DVDs are released? c) How fast are the sales changing two years ...

**calculus**

Sand is falling into a conical pile so that the radius of the base of the pile is always equal to one half its altitude. If the sand is falling at the rate of 10 cubic feet per minute, how fast is the altitude of the pile increasing when the pile is 5 feet deep?

**Calculus**

Estimate the area of the plane region bounded by the graph of f(x) = e^x, the x-axis, and the vertical lines x = 0 and x = 8 using the trapezoidal method with trapezoids of equal width. Round your answer to 4 decimal places. I got the answer 6892.7480 but it was incorrect and ...

**phy 231**

A mass-spring system oscillates with an amplitude of 4.00 cm. If the spring constant is 277 N/m and the mass is 573 g, a.determine the mechanical energy of the system. b.Determine the maximum speed of the object. c.Determine the maximum acceleration.

**phy 231**

It takes 23 hours 56 minutes and 4 seconds for the earth to make one revolution (mean sidereal day). a.What is the angular speed of the earth? I got 7.292x10^-5 rad/s b.Assume the earth is spherical. Relative to someone on the rotation axis, what is the linear speed of an ...

**civics**

What was the purpose of the Little rock nine going to the high school?

**phy 231**

An object of mass m1=3.3 kg moving at 4.7 m/s strikes a stationary second object of unknown mass. After an elastic collision, the first object is observed moving at 3.76 m/s at an angle of -41° with respect to the original line of motion. What is the energy of the second ...

**phy 231**

A car of mass 860.0 kg accelerates away from an intersection on a horizontal road. When the car speed is 39.6 km/hr (11.0 m/s), the net power which the engine supplies is 5700.0 W (in addition to the extra power required to make up for air resistance and friction). Calculate ...

**math**

Justin has a total of 50 coins that are all nickels and quarters. He has 10 more nickels than quarters. How many of each coin does Justin have?

**civics**

what is the difference of the sixth and seventh amendment

**Math lit,business studies,consumer studies,tourism**

What career part should i follow

**Math**

I have 6 thousands,12 tens, 9 hundreds, 10 ones and 3 tenths. What number am I? This is a question on my 3rd grade daughters math homework and I'm completely confused. I think it may be 7030.03???

**PHY 231**

Two masses M1 = 6.30 kg and M2 = 3.30 kg are on a frictionless surface, attached by a thin string. A force of 40.3 N pulls on M2 at an angle of 28.5° from the horizontal as shown in the figure. Calculate the tension T in the string.

**PHY 231**

Mass m1 = 11.3 kg is on a horizontal surface. Mass m2 = 5.70 kg hangs freely on a rope which is attached to the first mass. The coefficient of static friction between m1 and the horizontal surface is μs = 0.573, while the coefficient of kinetic friction is μk = 0.130...

**Global History II**

Wow. Thank you for the quick lesson. Appreciate it. Have a good night.

**Global History II**

Russia wanted the waterway? Russia had a stronger army than Turkey. Sorry, got this question for homework and I can't find the answer in my notes or text, and don't remember talking about it in class, been struggling so I turned here

**Global History II**

Oh - so Turkey controlled an important waterway? Then why was Russia threat to them?

**Global History II**

I have no idea. I've been stuck on this one question for two days. I think it's B but I can't find any info to confirm it

**Global History II**

Throughout history, Russia has been a threat to Turkey because Turkey a) ha large supplies of minerals b) shared Russia's religious beliefs c) controlled an important waterway d) was the leader of the Arab states

**Chemistry**

What is the total number of joules of hear needed to change 200g of ice to water at O degree Celcius?

**Mechanical behavior**

5 uN

**algebra**

From a point on a straight road, 2 cars are driven in opposite direction. One care at 69 miles per hour and the other at 27 miles per hour. How many hours will they be 480 miles apart?

**science**

why is it important for a cell to grow before it replicates its DNA?

**Math**

Socks are on sale 4 Pairs for $5. How much would you pay for 8 Pairs of socks?

**physic**

In compressed state, a spring 3.00 meters long hanging from the ceiling has a potential energy of 2.0 joules. If the entire potential energy is used to release a ball of mass 1.2 kilograms vertically downward, then what is the kinetic energy of the ball when it reaches the ...

**Solving Linear Equations (Math)**

The length of a rectangle is 5m shorter than three times the width. The perimeter is 46m. Find the length of each side.

**IPC**

A motorcyclist changes the velocity of his bike from 20.0 meters/second to 35.0 meters/second under a constant acceleration of 4.00 meters/second2. How long does it take the bike to reach the final velocity?

**math - age problem**

3 years ago, Vin’s age is 3 times the age of Paul. At the present, Vin’s age is twice the age of Paul. What would be their age 3 years from now if the sum of their present age is 18?

**math**

1.) 3 years ago, Vin’s age is 3 times the age of Paul. At the present, Vin’s age is twice the age of Paul. What would be their age 3 years from now if the sum of their present age is 18? 2.) Willie bought a jacket for 26.86 pesos. The jacket’s price had been ...

**algeb**

help please :) 1.) 3 years ago, Vin’s age is 3 times the age of Paul. At the present, Vin’s age is twice the age of Paul. What would be their age 3 years from now if the sum of their present age is 18? 2.) Willie bought a jacket for 26.86 pesos. The jacket’s ...