Tuesday
May 3, 2016

Posts by julia

Total # Posts: 609

Science
B A C D 100% on this quiz
April 25, 2016

Science
1. Which of the following could be an engineering project that could better protect the planet? -finding a new landfill site -designing a better trash compacter -deciding which product can be recycled*** -growing microbes that eat oil 2. Engineers who are working to find ...
April 25, 2016

math( surface area )
The height of a rectangular prism is 20 centimeters. It has a surface area of 2,400 square centimeters. What are two possible sets of lengths and widths? Find one set of dimensions with l and w equal in length as well as a set of dimensions that are not equal.
April 4, 2016

math( surface area)
write a product that represents the surface area of any rectangular prism with length l, width w, and height h. Expain.
April 3, 2016

Math
Yes thank you so much!!
March 31, 2016

Math
The length of the hypotenuse of a right triangle is 2m more than the longer leg. The longer leg is 7m longer than the shorter leg. Find the perimeter of the triangle. ( please explain as you go)
March 31, 2016

chemistry
If you place 5 mg NiCO3 in 1 L of pure water, does all the salt dissolve? If not, how much salt remains undissolved? The Ksp for NiCO3 is 6.6x10^-9 M.
March 24, 2016

chemistry
For CaCrO4, Ksp= 7.1x 10^-4. How many grams of Na2CrO4 must be added to 200 mL of .250 M Ca(NO3)2 to just initiate precipitation?
March 24, 2016

History
What do you think it is?
March 17, 2016

U.S. History (Check, Please!)(REED)
What's the problem?
March 17, 2016

Math
8 times 2 is 16, plus 6. That would equal 22, so it would have to be 4 and 12. 12 times 2, plus 4. 24 plus 4 equals 28, which is an answer choice. Thanks Ms. Sue!
March 15, 2016

Math
So,it couldn't be 2 and 24, because that would equal 52, right? So it would have to be either 4 and 12 or 6 and 8.
March 15, 2016

Math
Oh god, I'm so stupid, they would all equal 48! HAHA!! Oops.
March 15, 2016

Math
2 and 24, 3 and 16, 4 and 12, 6 and 8.
March 15, 2016

Math
A = L times W, right? 3 times 16 is 48. I am confused.
March 15, 2016

Math
If the area is 48 square ft., the length would be 16 ft., and the width would be 3 ft. Correct?
March 15, 2016

Math
David wants to build a pen for his goat. He wants the area of the pen to be 48 square feet. If the length and width of the pen are whole numbers, which of the following could be the perimeter of the pen? - p = 26 ft - p = 28 ft - p = 30 ft - p = 36 ft
March 15, 2016

chemestry
Yes
March 15, 2016

geometry/algebra
The algebraic expression of a dilation is (x, y) changes to (1/a x, 1/a y). If the dilation is an enlargement, give three possible values of a. Anything over 1 for the denominator would make the x and y values smaller. So what would the possible values be for a?
March 6, 2016

English
Edgar Allan Poe uses a pair of rhyming words to describe trying to hold sand in “A Dream Within a Dream.” In a short paragraph, tell what the words are and how they express the speaker’s feelings. Use details from the poem to support your answer. I just need ...
February 26, 2016

Algebra
James has a 6-ft board that is 24 in. wide. He wants to cut it into five pieces to make a small bookshelf with two shelves. The front and back will not be covered. What should be the dimensions of the bookshelf to maximize the volume and use all of the 6-ft board?
February 22, 2016

criminal justice
Schlomo occasionally drinks beer with friends. His drinking doesn’t interfere with his job or personal obligations. He gets a pleasant “buzzed” feeling from two beers and doesn’t feel a need to drink more. Alcohol has not caused him any physical or ...
February 1, 2016

History of Drugs
The Great Experiment is often used when referring to? I think it is the Prohibition Era, The Eighteenth Amendment but I am not sure.
February 1, 2016

physics
A batter hits a ball, causing it to leave the bat at 135 m/s and at an angle of 18.3 degrees from the horizontal. If the baseball field is level, and ignoring the height at which the batter hits the ball, how far (horizontally, in meters) away from the batter does the ball hit...
January 27, 2016

physics
supposedly the answer to the second part of the question is y = −6.5×10−14 m any insight?
January 27, 2016

physics
In a cathode-ray tube, electrons are projected horizontally at 1.0×10^6 m/s and travel a horizontal distance 11.5 cm across the tube. How long are the electrons in flight? Express your answer to two significant figures and include the appropriate units. Find the vertical...
January 27, 2016

physics
how do you get the 1135? I must not be calculating something correct
January 27, 2016

Chemistry
Balance the equations for oxide reduction method: KMnO4 + KCl ---> MnCl2 + Cl2
January 26, 2016

math
Find the product of 5 and 4 . Express your answer in simplest form.
January 21, 2016

physics
an aluminum cylinder, of height h=2ocm and of radius r=1ocm, rests with its base on a horizontal table. Density of aluminum P=2700kg/m^3 a-calculate the weight of the cylinder take g=10N/kg b-what is the value of the force exerted by the table on the cylinder? c-deduce the ...
January 20, 2016

pre calc
Suppose you get on a Ferris Wheel that has a diameter of 40 meters and turns at a rate 1.5 revolutions per minute (the period is not 1.5 ) the height above the ground in meters, of your seat after t minutes can be modeled by an equation. Assume you get on the ride at t=0 min ...
December 9, 2015

Riddle
Reflection
November 14, 2015

southwest
5650 is compounded semiannually at 18% for 16 years
November 11, 2015

Physics
You are installing a new spark plug in your car, and the manual specifies that it be tightened to a torque that has a magnitude of 45.8 N*m. Using the data in the figure below (L = 0.287 m and θ = 49.6°), determine the magnitude F of the force that you must exert on ...
November 9, 2015

math
A culture starts with 8300 bacteria. After one hour the count is 10,000. (a) Find a function that models the number of bacteria n(t) after t hours. (Round your r value to three decimal places.)
November 6, 2015

math
A wooden artifact from an ancient tomb contains 70% of the carbon-14 that is present in living trees. How long ago was the artifact made? (The half-life of carbon-14 is 5730 years. Round your answer to the nearest whole number.)
November 6, 2015

Algebra
If one earthquake is 160 times as intense as another, how much larger is its magnitude on the Richter scale? (Round your answer to one decimal place.)
November 6, 2015

Physics
Starting from rest at t = 0 s, a wheel undergoes a constant angular acceleration. When t = 1.6 s, the angular velocity of the wheel is 5.9 rad/s. The acceleration continues until t = 19 s, when the acceleration abruptly changes to 0 rad/s2. Through what angle does the wheel ...
November 4, 2015

math
its 9mm:)
November 3, 2015

Math
First vehicle is traveling at 50 miles per hour. Second car is traveling at 65. They ate 15 feet apart when the second cars slammes on break. Will they have a empack and at what speed.
October 28, 2015

math
Sharon spent $2 on a magazine; then she spent half of the rest of her money on shoes. She spent half of her remaining money on lunch. She has $12 left. How much money did sharon start with?
October 21, 2015

Physics
From what height would a car weighing 9990 N have to fall to gain the kinetic energy equivalent to what it would have when traveling 64.87 mi/hr?
October 21, 2015

Physics
A 1600 kg block of granite is pulled up an incline that has an angle of inclination θ = 20 ° with a constant speed of 1.21 m/s by a steam winch (see Figure). The coefficient of kinetic friction between the block and the incline is 0.09. How much power must be supplied...
October 19, 2015

Physics
I don't understand this at all! use the position equation s=-16t^2 +v0t+s0 to write a function that represents the situation. Find the average rate of change from t1 to t2. a) An object is thrown upward from a height of 6 feet at a velocity of 64 feet per second.... t1=0...
October 19, 2015

Physics
A bullet is fired from a rifle that is held 1.70 m above the ground in a horizontal position. The initial speed of the bullet is 1078 m/s. Calculate the time it takes for the bullet to strike the ground.
October 19, 2015

math
geologists estimate that earths temperature rises about 10 degrees celsius for every kilometer k below earths surface. suppose it is 50 degrees celsius on the surface of the earth. What is the formula for the temperature t in degrees celsius at a dept of k km?
October 5, 2015

physics
A rock is dropped from a tree of height 22 m into a lake (depth 4.0 m) below. After entering the water, the rock floats gently down through the water at a constant speed of 1.4 m/s to the bottom of the lake. What is the total elapsed time?
October 4, 2015

science
True or False? Can someone check to see if I am correct. If not, why? a) Two samples of matter have the same volume must have the same density FALSE: could have different densities b) two samples of matter having the same volume and the same number of particles must have the ...
September 26, 2015

Science
True or False? Can someone check to see if I am correct. If not, why? a) Two samples of matter have the same volume must have the same density FALSE: could have different densities b) two samples of matter having the same volume and the same number of particles must have the ...
September 26, 2015

science
The modern atomic model includes electrons orbiting the nucleus. Which of the following parts of Dalton's atomic model was disproved by the discovery of the electron? - Atoms are tiny particles. - Atoms cannot be divided into smaller parts . - Atoms have specific mass and ...
September 23, 2015

Math
Geddy has a pool with a volume of 25.0m^3. It costs $2.35 per cubic foot (ft^3) to clean. How much will it cost to clean the pool?
September 22, 2015

language arts
ms. sue please help the characterization of the children is an important part of "The Story-Teller". which of the following quotes from the story offers the best evidence for the character of Cyril being mischievous? A. the children moved reluctantly to the window. &...
September 16, 2015

Math
the area of a square is equal to one less than one-half its perimeter. How long is each side? (A=s squared and P=4s, where s represents the side length of the square)
August 29, 2015

5th grade math
need in layman's terms, please, thank you
August 20, 2015

Math
but the 2 isn't divisible by 5?
August 20, 2015

Math
yes, it does, thank you
August 20, 2015

Math
thanks so much :)
August 20, 2015

Math
so it's 9,405,271? I'm the Grandmother and this 5th grade work is beyond me. thank you
August 20, 2015

Math
you are right, 9,805,472
August 20, 2015

Math
7 digit number no repetition of numbers digit 5 in thousands place, greatest digit in the millions place, digit in the hundred thousands place is twice the digit in the hundreds place, digit in the hundreds place is twice the digit in the ones place, digit in the tens place is...
August 20, 2015

Math
this is way out there for us, she's only in 5th grade, but thank you
August 20, 2015

Geometry
Anybody?
June 22, 2015

Geometry
A carpenter checks to see if a board is warped by laying a straightedge across the board in several directions. State the postulate that is related to this procedure.
June 22, 2015

Language Arts
Does anyone have the correct answers for #1-6 and #8-18
May 16, 2015

math
2.If a sledgehammer that weighs 18 newtons on Earth will weigh about 4 newtons on the planet Namar, then your weight on Namar would be about ___ times your weight on Earth. A. 0.25 B. 4 C. 0.5 D. Not enough information
May 14, 2015

math
thxs
May 13, 2015

math
never mind
May 13, 2015

math
is it $3.75 because the unit rate is $2.50/1 and to get 10 you multiply the denominator, 1, by 15 and what u do to the bottom you do to the other so $2.50*15=37.5 and it equals 37.5/10 which is 3.75
May 13, 2015

math
At Frugal Foods a loaf of bread cost about $1 in 1980. In 2013, the loaf of bread cost $2.50. 1.A ratio is a comparison of two amounts by division. What is the ratio of the cost of a loaf of bread in 2013 to the cost in 1980? *$2.50/1 2.Assuming the price of clothing increased...
May 13, 2015

math
maya made a sign with an area of 48 square centimeters What could her sign look like
May 5, 2015

chem
For the reaction: N2+3H2<--->2NH3 4.000 mol N2, 2.000 mol H2, and 6.000 mol NH3 are placed in a 2.000 L container and allowed to reach equilibrium. When equilibrium is established the [H2]=2.77 M. Calculate the equilibrium concentrations of nitrogen and ammonia. ...
April 19, 2015

chem
For the reaction: N2+3H2 <-----> 2NH3 1.000 mol N2 and 1.000 mol H2 are placed in a 1.000 L container and allowed to establish equilibrium. When equilibrium is established the [N2] =0.921M. Calculate the equilibrium concentrations of hydrogen and ammonia. Calculate K.
April 19, 2015

chem
For the reaction: A+B <-----> 2C (all gases) 2.0 mol A, 2.8 mol B and 1.0 mol C are placed in a 2.0 L container and allowed to reach equilibrium. When equilibrium is established [C]=0.75 M. Calculate all equilibrium concentrations. Calculate K. I am so confused!
April 19, 2015

math
June has twice as much money invested at 5% simple annual interest as she does at 4 %. If her year income from the two investment is $315 how much does she have at each rate?
March 20, 2015

English
11- Before Derrell made a serious purchase, such as a car, he would study the competition?
March 16, 2015

English
10- Before finishing the meeting, the chair of the group offered many ideas?
March 16, 2015

English
8- We should consider traveling to China this summer?
March 16, 2015

English
@Ms Sue
March 16, 2015

English
could 6 be The faculty had made recommendations for the honor society?
March 16, 2015

English
I know the answers to 3, 5, 7, and 9
March 16, 2015

English
Identify awkward or pretentious diction in the following sentences, and revise each sentence as necessary to improve clarity. 2. Let’s have a discussion of the essay you read for homework. 3. Khaya finally came to the realization that she preferred research to teaching. 4...
March 16, 2015

science
A charge of +9.0 nC and a charge of +4.0 nC are separated by 50.0 cm. Find the equilibrium position for a −1.0 nC charge as a distance from the first charge. The Coulomb charge is 8.98755 × 109 N · m2 /C 2 . Answer in units of cm.
March 13, 2015

Chemistry
I need to use those numbers to find the final concentrations for each individual solution.
February 24, 2015

Chemistry
I have to use the given concentration of 7.03 micromoles/liters to determine the concentration for the following dilutions. 1. mL stock solution-2 mL distilled water-8 2. mL stock solution-4 mL distilled water-6 3. mL stock solution-6 mL distilled water-4
February 24, 2015

English
@ms sue, how about "How did the pilot know where in the air he was?"
February 18, 2015

English
Identify the simple sentences in the following paragraph. I know the first and third sentences are simple. The air show announcer hushed. He had been squawking all day, and now he quit. The crowd stilled. Even the children watched dumbstruck as the slow, black biplane buzzed ...
February 18, 2015

geometry
i need help on a question that involves finding the "value of the variable" ive started the question but im stuck of how to continue .its a right triangle which hypotenus length is cut by a altitude line "w+9" .the lengths cut are 8 and 18 .
February 11, 2015

Science
California's volcanoes formed as a result of colliding boundaries.
February 6, 2015

Chemistry
the titration of an ascorbic acid requires 18.5 mL of .0105 M KIO3. how many mmol of ascorbic acid were in this sample?
February 4, 2015

Science
there isn't a Makayla Caldwell in mrs formissano's stupid
January 26, 2015

English 10 help please
metaphoe
November 18, 2014

Trig
the angle of elevation to the sun is 65 degrees. A building casts a shadow 16m long. What is the height of the building to the nearest meter?
November 17, 2014

Algebra
You invest an initial $4,500 in an account that has an annual interest rate of 4.5%, compounded daily. How much money will you have in the account after 10 years? Round your answer to the nearest whole number.
November 12, 2014

calculus
Use l'hopital's Rule to evaluate lim x in 0 of (4x(cos 6x-1 )) / sin 3x-3x
November 8, 2014

math
Richard put a counter on 6. He counted by tens. what are the next 3 numbers he counted? My answer is: 16, 26, 36
November 3, 2014

calculus
never mind i got it thanks
November 3, 2014

calculus
A spotlight on the ground is shining on a wall 24m away. If a woman 2m tall walks from the spotlight toward the building at a speed of 1.2m/s, how fast is the length of her shadow on the building decreasing when she is 4m from the building?
November 3, 2014

Algebra
Find the dimensions of the rectangle of the largest area that can be enclosed by 200 meters of fencing
October 27, 2014

calculus
The volume of a cube is increased from 729 cubic centimetres to 849.285 cubic centimetres. Use differentials to determine: a) by approximately how many centimetres the side length of the cube increases ? B) by approximately how many square centimetres does the surface area of ...
October 12, 2014

Calculus
The volume of a cube is increased from 729 cubic centimetres to 849.285 cubic centimetres Use differentials to determine : (a) by approximately how many centimetres does the side length of the cube increase? (b)by approximately how many centimetres does the surface area of the...
October 11, 2014

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