Sunday
March 1, 2015

Posts by emma


Total # Posts: 1,244

Math
What is the combined height of 3 nickels, 2 nickles, and 1 nickle
February 25, 2015

Math
How many times larger is the area of a square (Length of Sides = A) than the area of an equilateral triangle (Length of Sides = 0.5A)?
February 21, 2015

physics
If a person weighs 700N on Earth, what force due to gravity would they exert on a 1500kg car they are standing 1.5m from? Assume the distance is between their centres of mass. F=Gm1xm2/r^2?
February 20, 2015

Ap calc
Use the method of cylindrical shells to find the volume V of the solid obtained by rotating the region bounded by the given curves about the x-axis. x + y = 3, x = 4 − (y − 1)^2
February 19, 2015

AP calc
Use the method of cylindrical shells to find the volume V generated by rotating the region bounded by the given curves about the specified axis. y = 8x − x^2, y = 12; about x = 2
February 19, 2015

AP calc
Use the method of cylindrical shells to find the volume V generated by rotating the region bounded by the given curves about the specified axis. y = 13 sqr.(x) y = 0, x = 1; about x = −3
February 19, 2015

Science
1.Infrared radiation has wavelengths ranging from about 800 nm to 1 mm. What is the frequency of radiation of wavelength 970 nm? Answer in units of s−1 . 2.Microwaves, such as those used for radar and to heat food in a microwave oven, have wavelengths greater than about ...
February 12, 2015

math
Use the line graph to solve. What was the difference in water levels between Week 2 and Week 4? A. 10 m B. 1 m C. 0.10 m D. 0.01 m the water kecvers is 5.3 and 5.4
February 6, 2015

Physics
In the deep ocean, a water wave with wavelength 95 m travels at 12 m/s. Suppose a small boat is at the crest of this wave, 1.8m above the equilibrium position.What will be the vertical position of the boat 3.0s later?
January 22, 2015

economics
Which of the following is most likely to be purchased in the factor market? You will choose two answers for this question. Shampoo and dog food Cement and copper wire Opera tickets and sushi Automobiles and deodorant Dirt and timber I know that dirt and timber is one of the ...
December 4, 2014

math
write the following square root in the form a root b . where a and b are integers and b has the least value possiable. 3 root 7?
November 28, 2014

math
find a value for x so that 28/12 = -7/x x=?
November 25, 2014

math
the number of professors in a collage is P and the number of students is S and there are 15 times as many students as professors. write the answer as an algerbra equation.
November 25, 2014

Math (trigonometry)
thank you
November 23, 2014

Math (trigonometry)
Hi, I need help with these problems, I'm not sure where to start. The book's examples are different. Thanks in advance!! 1.) To find the distance AB across a river, a distance BC of 472m is laid off on one side of the river. It is found that B=108.1 degrees and C= 17.9...
November 23, 2014

Maths
I did miss a bit. The 10 additional balls were all red.
November 22, 2014

Maths
In a bag there are a number of red and blue balls. The ratio of red to blue balls is 3:7. I add 10 balls and the ratio goes to 6:7 red to blue balls. How many blue balls are there? 3n + 7n = 10n (3n+10) + 7n = 10n + 10 6n + 7n = 10n + 10 13n = 10n + 10 3n = 10 N = 3.333 7n = ...
November 22, 2014

Chemistry
typo: *not be correct
November 16, 2014

Chemistry
Thank you DrBob222, could you possibly elaborate why C or D could be correct? (I initially thought C, but I'm not so sure now.)
November 16, 2014

Chemistry
Which of the following is NOT true for ΔGrxn? A.) If ΔG°rxn > 0, the reaction is spontaneous in the forward direction. B.) If Q = 1, then ΔGrxn = ΔG°rxn.If ΔG°rxn = 0, the reaction is spontaneous in the reverse direction. C.) If ΔG&...
November 16, 2014

math
sales tax is 8.2 percent find the sales taxes on a purchase of 273.00.
November 14, 2014

MATH!!!
Aparent dies and leaves half of his estate to his four children. THE FIRST ONE GETS 1/2 OF THE ESTte the second gets 1/8 and the thrid one gets 1/4 . how much did the fourth on get?
November 14, 2014

MATH!!!
A function machince accepts inputs as ordered pairs. The componeys of the ordered pairs are natural numbers and the first componet is the length of the rectangle and the second componet is the width. the given machince comptes the perimeter ( the distance around the rectangle...
November 14, 2014

MATH
A function machine accepts inputs as ordered pairs. the componets of the ordered pairs are natural numbers and the first component is the length of rectangle and the second comonet is the width . the given machince comptes the perimiter . find the out ut for (3,7) (7,3) (5,7) ...
November 14, 2014

math
A function machine accepts inputs as ordered pairs. The Components of the order pairs are natural numbers and the first components is the length of the rectangle and the second componet is the width . The given machine computs the perimeter. Find the out put for (1,3) ...
November 13, 2014

math
F (X)= X-5
November 13, 2014

Math
Write an expression for the cost c if a printer charges $2.05 for binding plus 5 cents fee p pages for copies of a community group. C=
November 13, 2014

algebra
If matt has six times as many sitckers as tom. how many stickers dose he have to give tom so they can have 70 stickers each?
November 13, 2014

Math
Determine the next term of sequence 3,11,19,27,35 is my line of thinking correct 43?
November 10, 2014

language / reading
I'm doing a précis and I want to get a good grade could someone check this. C.s. Lewis's The Last Battle takes place in a forest it is a children's fantasy novel. The conflict is that a false ask an roams Narnia. The main characters at e Jill and Eustace the...
October 27, 2014

language / reading
I can't figure out what the climax of The Last Battle is? Is it this,the climax of The Last Battle is when Jill and Eustace go to the real Narnia.
October 27, 2014

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

math
32gal x 60min x 4qt = 7,680qt 1min x 1hour x 1gal = 1hour
August 21, 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

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