Saturday
October 25, 2014

Posts by emma


Total # Posts: 1,206

math
I tried it and I think the answer is 82% am I right
October 21, 2014

math
Can't figure this one out. The oceans' tide levels vary based on the phases of the moon. Find the percent decrease in tide levels when high tide is 4.25 ft and low tide is 0.75 ft above sea level.
October 21, 2014

math
It is a different equation I have it now.
October 21, 2014

math
I don't get how to put it in the the equation Interest=percent×rate×time This is the question The banded ribbon worm is a carnivorous aquatic worm. It measures about 2.5 ft. When expanded. Find the percent increase between the contracted and expanded length of ...
October 21, 2014

History
Will do! It seems more accurate that way.Thanks again
October 9, 2014

History
Okay thank you for your help, I really appreciate it!
October 9, 2014

History
The question does not tell me anything else, but I do know that there are 6 features in a civilization. -GOVERNMENT -RELIGION -ARCHITECTURE -WRITING -SOCIAL STRUCTURE/CLASSES -CITITES
October 9, 2014

History
I'm not exactly sure, but I think it has something to do with civilizations of Ancient Egypt.
October 9, 2014

History
Explain the six features of Ancient Egypt
October 9, 2014

1st grade
Thank you
October 9, 2014

1st grade
This is for my cousin Kara planted seeds in her garden.that summer, many tomatoes grew. cause: Effect:
October 9, 2014

math
29
October 9, 2014

math
Explain Sean biked 43 miles on Monday, 23 miles on Tuesday, and 62 miles on Wednesday. How many more miles did he bike on Wednesday than on Monday? Draw a picture and write an equation to solve. Then solve
October 9, 2014

science
The total energy of motion in the molecules is called POTENTIAL ENERGY. TEMPERATURE is the average amount of energy of motion in the molecules of a substance. A THERMOMETER is a thin glass tube with a bulb on one end that contains a liquid,usually mercury or colored alcohol. ...
October 8, 2014

Science
I'm pretty sure it is c
October 8, 2014

Science
Yes
October 8, 2014

Science
The mRNA brings the message that was transcribed by the DNA to the ribosome, while the tRNA brings the anticodon to translate the message, along with the amino acid which bonds to form a polypeptide chain. The chain is further developed into a functional protein .
October 8, 2014

Science
the biochemical basis of heredity consisting of codons in DNA and RNA that determine the specific amino acid sequence in proteins and appear to be uniform for nearly all known forms of life. I'm not sure what the answer is but this is more information.
October 8, 2014

Science
The genetic code is the set of rules by which information encoded in genetic material (DNA or RNA sequences) is translated into proteins (amino acid sequences) by living cells. Hope this helps.
October 8, 2014

science
I only want to know if I got them right or witch ones I got wrong.
October 8, 2014

science
Potential energy Temperature Thermometer Heat Conduction And convection
October 8, 2014

science
Ms sue HELP ME PLEASE
October 8, 2014

science
Help me.sue
October 8, 2014

science
The total energy of motion in the molecules of a substance is called? ?is the average amount of energy of motion in the molecules of a substance. A ? Is a thin glass tube with a bulb on one end that contains a liquid usually mercury or a colored alcohol. The energy transferred...
October 8, 2014

Science
How do you define a controlled experiment?
October 7, 2014

Math
0.28 t 0.62 = 0.90
October 7, 2014

Math
What is the sum of decimals? 0.28 + 0.62 = Write to explain how you found your answer.
October 7, 2014

Math Multiplication
What are the factor pairs of 642? Please dont ask what I dont understand because I cant find the answer
October 1, 2014

math
How do you study for a math quiz?
September 24, 2014

math
You would need 4 pizzas
September 24, 2014

language
I will now definitely read it. :) thank u
September 24, 2014

language
Would you mind if you gave me a brief summary?
September 24, 2014

language
I have to do a précis on a book that was published in the 1940-1969 what book would you recommend.
September 24, 2014

social studies
Thanks I found it right way.
September 24, 2014

social studies
What did the Egyptians believe about the region to the west of the Nile.
September 24, 2014

social studies
Thank you it was very helpful
September 24, 2014

social studies
I don't have any choices. My answer would be the Egyptians looked at the water flow.
September 24, 2014

social studies
In order to track time of the floods,Egyptians looked to?
September 24, 2014

social studies
True or false The ancient Egyptians were monotheistic;they believed in only one god.
September 24, 2014

WORLD HISTORY HELP
Three differences between the Paleolithic and Neolithic Age? Explain at least three technological advancements made by mesopotamians? How was structure created in the Paleolithic Age, the Neolithic Age and Mesopotamia?
September 18, 2014

World History
Three differences between the Paleolithic and Neolithic Age? Explain at least three technological advancements made by mesopotamians? How was structure created in the Paleolithic Age, the Neolithic Age and Mesopotamia?
September 17, 2014

math
Pamela Mello is paid on an incremental commission schedule.She is paid 2.6% on the first $60,000 and 3.4% on any sales over $60,000. If her weekly sales volume was $89,400, what was her total commission?
September 2, 2014

? ABOUT POSTING AN ENGLISH/COMP. HOMEWORK QUESTION
If we posted an essay we had written and asked a teacher to read and evaluate it, would we be able to delete the post after a teacher had read it so as to aviod someone using the essay for plagiarism, or is a question posted on this site permanently?
September 1, 2014

AP US History
I dot really understand the article so I dont know what his point of view is? Is it that he is listing a bunch of rules on how to protect the gold and who should own it??
August 28, 2014

AP Calc. AB
No. Sorry it's actually f(x)=(x^3)/8 when x=4
August 27, 2014

AP Calc. AB
Evaluate the approximate tangent slope to f(x)=x^3/8 when x=4
August 27, 2014

Alg.2
Thankyou Mr.Steve!
August 24, 2014

Alg.2
The membership to your local video store is flat rate of $10/year and the DVD rental rate is $3.95/DVD. Write an equation that models the total amount of money you will spend on DVD rentals this year. How many DVD's can you rent if you spend $500/yr.?
August 24, 2014

Algebra 2
the cost c of going to the movies varies directly with the number of people N attending. A group of four paid $14 to go to the movies on Friday. Write an equation that relates c & n. How much would it cost for seven people to go to the movies.
August 24, 2014

PHYSICS
what work must a diesel engine in an 18,000kg truck do to increase its speed from 30.m/s to 40 m/s in 5.0s? what average force did the engine exert? what power was needed (in horsepower)
August 6, 2014

PHYSICS
thank you
August 6, 2014

PHYSICS
a marksman fires a bullet(mB=5.00g) horizontally with a velocity of 300.m/s from a rifle(mR=3.00kg)What is the recoil velocity of the rifle?
August 6, 2014

PHYSICS
a constant force of 6.00N acts on a 3.00kg object for 10.0s. what are the changes in the objects momentum and velocity?
August 6, 2014

PHYSICS
when a mass of 2.5kg string is attached to a spring it stretches 42cm. a) find the constant of the spring 'k' b) how much force is required to stretch the spring 50cm? c) how much energy is stored in the spring when stretched 0.35cm?
August 6, 2014

PreCalculus
How do you find the probability of three events happening at the same time? Please walk me through the steps. If you are in ship and get hit by lightning the probability is 1/100000. And the probability of falling down into the ocean and getting eaten by a shark is 100/100000...
July 30, 2014

PHYSICS
a wheel rotating at 1800 rpm slows down uniformly to 1200 rpm in 2.0 sec. calculate a)the angular acceleration (revs/s^2) of the motor. and b) the number of revolutions it makes in this time.
July 30, 2014

PHYSICS
a flywheel makes300.rpm. find the angular speed of any point on the wheel and the linear speed(tangential) of a point 5.00m from the center.
July 30, 2014

PreCalculus
Solve for x. sec(x)sin(x)=2sin(x) 0<=x<=2pi
July 29, 2014

geometry
A rectangle is 14cm wide and 48 cm long. Find the measures of the acute angle between its diagonals. please help
July 29, 2014

Algebra
Since it is asking for time, is C correct?
July 24, 2014

Algebra
A problem involving a ball being thrown in the air is modeled with a quadratic function. Which of the following would you be solving for if asked to find the time at which the ball will reach its maximum height? A. an x-intercept of the graph B. the y-intercept of the graph C...
July 24, 2014

Algebra
A. h=-16t^2+20t+300 B. h=-16t^2+20t+30 C. h=-16t^+20t+3 D. h=-16t^+200t+3
July 24, 2014

Algebra
Suppose you hit a fly ball with an initial upward velocity of 20 feet per second. Which of the following equations would be a realistic model for the height of the ball after t seconds?
July 24, 2014

Algebra
The height of a ball thrown directly up with a velocity of 40 feet per second from a initial height of of 5 feet is given by the equation h(t)=-16t^2+40t+5, where t is the time in seconds and h is the ball’s height, measured in feet. When will the ball hit the ground? ...
July 23, 2014

Algebra
Which of the following cannot be solved using the quadratic formula? A. x^2-x+3=0 B. x^2=9 C. 2x+3=0 D. -x^2=-x
July 22, 2014

Algebra
Which of the following cannot be solved using the quadratic formula? A.-3x^2-x+3=-3x^2 B. 0=x^2 C. 0=2x^2-1 D. x^2+3x-2=4x^2-5x-1 Is it C?
July 22, 2014

Algebra
But isn't it also true that you can't complete the square if there is no constant?
July 21, 2014

Algebra
Which of the following statements is true? A. Any quadratic equation can be solved by completing the square. B. Completing the square always gives two distinct solutions. C. You can’t complete the square if there is no constant in the equation. D. You can only use ...
July 21, 2014

PHYSICS
two masses m1=400.g and m2 =600.g are connected with a light string which goes over a frictionless pulley of negligible mass. the two systems are released from rest. a) what is the acceleration of each mass? b) what is the tension force in the string? and c) what is the ...
July 21, 2014

Algebra
The length of a rectangle is 4 units more than its width. The area of the rectangle is 25 more than 4 times the width. What is the width of the rectangle?
July 20, 2014

Algebra
The length of a side of a rectangle is 2 units less than a number, and the width is 4 units more than the length. Which of the following expressions represents the area of the rectangle, in square units? A. x^2+2x+4 B. x^2-2x+8 C. x^2-4 D. x^2+4
July 16, 2014

RE: ALGEBRA
Given 25x^2 - 10x = 0, which values of x will satisfy the equation? (Hint: Factor the polynomial into two terms, and find the values of x that will make each term 0.) A. x = 0 and x = 5/2 B. x = 0 and x = 2/5 C. x = 0 and x = 2 D. x = 0 and x = 5
July 12, 2014

Algebra
Given 25^2-10x=0, which values of x will satisfy the equation? (Hint: Factor the polynomial into two terms, and find the values of x that will make each term 0.)
July 12, 2014

BABYSITTING
Which foods hinder the absorption of less absorbable forms of irons in foods, such as whole grains, dried peas or beans? A. Orange juice or other forms of Vitamin C B. Milk products or eggs C. Tea D. All of the above E. B and C PLZ HELP ME I THINK IT IS E.
July 12, 2014

PHYSICS
a ball is dropped from rest at 25m above the ground. how fast is it moving at 10 m above the ground and b) how much time does it take to reach the ground? no air resistance.
July 12, 2014

PHYSICS
V= pie r^2h r=4.38m V= 368m^3 h=?
July 11, 2014

PHYSICS
m1(x)=m2(3-x) (for x)
July 11, 2014

PHYSICS
m1v1+m2v2=m1vf+m2vf solve for (vf)
July 11, 2014

PHYSICS
a 100kg street light is supported equally by two ropes. one rope pulls up and to the right 40 degrees above the horizontal; the other pulls up and to the left 40 degrees . what is the tension of the rope?
July 11, 2014

PHYSICS
a 3000 N car is moving at 12.0m/s comes to a stop while skidding a distance of 25.0m. what is the coefficient of kinetic friction?
July 11, 2014

PHYSICS
a sled weighing 5.00 x 10to the third power can be accelerated from rest to 1.60 x 10 to the third km/hr in 2 seconds. muse of k =0.21. what force is required and how far did the sled go during acceleration?
July 11, 2014

PHYSICS
a mass of 2.00kg is pushed up a 50 degree incline. if muse of k is 0.400 and a force of 50.0 N is applied parallel to the plane, what is the acceleration of the mass?
July 11, 2014

PHYSICS
what is the kinetic energy of a 20.0g bullet moving with a speed of 150m/s? how much work is needed to stop the bullet?
July 11, 2014

PHYSICS
from a height of 1.5m a 2.0kg block slides down an incline which is 2.5m long and out onto the level floor. how far does it slide horizontally? muse of k is 0.32
July 11, 2014

PHYSICS
the speed of a bowling ball is 2.0m/s as it falls past a window of a tall building. using conservation of energy ,determine how fast it was going as it past another window 3.0m below.
July 11, 2014

PHYSICS
determine the speed of a 2.0g insect that has kinetic energy of 0.020 J.
July 11, 2014

physics
what would tension 1 be if W1=15N ,W2=20N and W3=150N, and Muse of k = 0.65?
July 10, 2014

Algebra
Which special case is represented by x^2-121? A. the difference of two squares B. the difference of cubes C. the square of a binomial D. the sum of cubes
July 9, 2014

PHYSICS
what would tension 1 be if W1=15N ,W2=20N and W3=150N, and Muse of k = 0.65?
July 9, 2014

Algebra
If you multiply a trinomial by a monomial, what type of polynomial will the product be? A. a monomial B. a binomial C. a trinomial D. it is not possible to determine
July 8, 2014

PHYSICS
a 2.00kg object A is connected with a massless string across a massless, frictionless pulley to a 3.00kg object B. the smaller object rests on an inclined plane which is tilted at an angle of theta=40degrees. what are the acceleration of the system and the tension in the string?
July 8, 2014

Algebra
Give the degree and classify the polynomial by the number of terms. A. degree: 2; trinomial B. degree: 3; binomial C. degree: 3; trinomial D. degree: 2; binomial Is B correct?
July 7, 2014

Algebra
Combine like terms and classify the polynomial by the number of terms. 7x + 3x – x Is monomial correct?
July 7, 2014

PHYSICS
a locomotive pulls 10 identical freight cars. the force between the locomotive and the first car is 100,000 Newtons, and the acceleration of the train is 2m/s^2. there is no friction to consider.what is the force between the ninth and tenth cars?
July 7, 2014

physic
a 2.00kg object A is connected with a massless string across a massless, frictionless pulley to a 3.00kg object B. the smaller object rests on an inclined plane which is tilted at an angle of theta=40degrees. what are the acceleration of the system and the tension in the string?
July 7, 2014

Algebra
x: 0, 2, 4, 6 ,8 y: 1, 49, 2401, 117,649 How do the y-values in the table grow? A. The y-values increase by a factor of 49 for each x increase of 1. B. The y-values increase by 49 for each x increase of 1. C. The y-values increase by a factor of 7 for each x increase of 1. D. ...
July 6, 2014

Algebra
Find the polynomial form of the equation below. y=-1.0(x-4.0)^2+2.0
July 5, 2014

PHYSICS
a car is proceeding at a speed of 14.0m/s when it collides with a stationary car in front. during the collision the first car moves a distance of 0.300 m as it comes to a stop. the driver is wearing her seat belt, so she remains in her seat during the collision. if the drivers...
July 5, 2014

PHYSICS
a 2.00kg object A is connected with a massless string across a massless, frictionless pulley to a 3.00kg object B. the smaller object rests on an inclined plane which is tilted at an angle of theta=40degrees. what are the acceleration of the system and the tension in the string?
July 5, 2014

PHYSICS
a locomotive pulls 10 identical freight cars. the force between the locomotive and the first car is 100,000 Newtons, and the acceleration of the train is 2m/s^2. there is no friction to consider.what is the force between the ninth and tenth cars?
July 5, 2014

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