Tuesday
July 28, 2015

Posts by danielle


Total # Posts: 780

How Children Learn
1. Which of the following is an essential ingredient of academic self-esteem? A. Individual assignments requiring problem solving (me) B. Acceptance by teachers and teacher aides C. Meeting deficiency and growth needs D. A school without grades 2. What kind of responses do ...
June 4, 2015

geometry and measurement
Lila wants to build a fence around her pool. The pool is 25 feet long by 15 feet wide. The fence is to be 10 feet from the edge of the pool. how many feet of fencing will she need?
May 5, 2015

Calc
The marginal cost of manufacturing x yards of a certain fabric is C′(x)=3−0.01x+0.000006x2 (in dollars per yard). Find the increase in cost if the production level is raised from 3500 to 8500 yards. Increase in cost =
April 28, 2015

chemistry
How many grams of oxygen gas must react to give 2.70g of ZnO? 2Zn(s)+O2(g)→2ZnO(s)
April 20, 2015

Physics
A stone is catapulted at time t = 0, with an initial velocity of magnitude 18.6 m/s and at an angle of 41.6° above the horizontal. What are the magnitudes of the (a) horizontal and (b) vertical components of its displacement from the catapult site at t = 1.06 s? Repeat for...
April 19, 2015

global history
is it that the studies will make him fluent and bold and self confident in speaking with everyone.
April 14, 2015

global history
can you help me answer it I am still a little confused
April 14, 2015

global history
They were expected to know several languages, understand philosophy and scientific teachings, appreciate literature and art, and further, to be deft sportsmen.
April 14, 2015

global history
is this okay so far, what should I add?
April 14, 2015

global history
the study of art leads to individual achievement and this leads to advances in math and sciences and this leads to more jobs
April 14, 2015

global history
The qualities of a "Renaissance man" reflected the political and social values of the Renaissance as these qualities were based upon a high regard for human worth and a realization of what individuals could achieve. is this correct?
April 14, 2015

global history
to what extent are studies in the arts important to the success of a renaissance man?
April 14, 2015

physics
A crane operator intends to lift a 300 kg piece of equipment using an upward force of 4000 N, will he be able to lift the equipment.
April 12, 2015

Integral
Calculate the integral of (1/(u^(5/4)))+5.5√u du
April 9, 2015

History
is this correct?
April 8, 2015

History
The qualities of a "Renaissance man" reflected the political and social values of the Renaissance as these qualities were based upon a high regard for human worth and a realization of what individuals could achieve.
April 8, 2015

Chemistry
56mL of a stock solution of hydrobromic acid, HBr, is added to 85mL of water, yielding a solution having a pH of 1.0. What was the molarity of the stock solution? I know Molarity = moles of solute/ liters of solution
March 31, 2015

Physics
Cart A has a mass of 10kg and is moving towards cart B at a speed of 15 m/s. If cart B is moving towards cart A with a speed of 5 m/s, what mass must Cart B have to stop both carts upon collision?
March 26, 2015

Calculus
A manufacture has been selling 1300 television sets a week at $420 each. A market survey indicates that for each $16 rebate offered to a buyer, the number of sets sold will increase by 160 per week. a) Find the price p(x) of each television as a function of x, where x is the ...
March 25, 2015

Calculus
A model for the food-price index (the price of a representative "basket" of foods) between 1984 and 1994 is given by the function I(t)=0.00009045t5+0.001438t4−0.06561t3+0.4598t2−.6270t+99.33 Where t is measured in years since midyear 1984, so 0≤t&#...
March 25, 2015

Calculus
The manager of a large apartment complex knows from experience that 80 units will be occupied if the rent is 460 dollars per month. A market survey suggests that, on the average, one additional unit will remain vacant for each 10 dollar increase in rent. Similarly, one ...
March 25, 2015

math
The outside diameter of a pipe is 5 and 7/32 inches. The walls of the pipe are 5/32 inches thick. find the inside diameter
March 12, 2015

math
20
March 12, 2015

math
You have 160 boxes of cookies. In each case you can pack 8 boxes of cookies. How many cases would be filled from these boxes of cookies? I'm not sure if i do 160*8 or what i believe its 20 instead of 1280
March 12, 2015

math
ok thanks
March 12, 2015

math
The temperature dropped from 6 Celsius to -5 Celsius. How many degrees did the temperature drop?
March 12, 2015

Child education
As Ms. Ramirez planned for her group time, she considered the best way to begin. Which one of the following would NOT be an effective way for her to begin group time? A. Asking individual children if they brought something to share B. Leading children in the finger play "...
March 3, 2015

Chemistry
Calculate the number of grams of propane (C3H8) consumed if 17.7 g of water is produced according to the reaction: C3H8(g)+5O2(g)=3CO2(g)+4H2O(g)
February 16, 2015

chemistry
A freezing point depression experiment was conducted using cyclohexane as the solvent. The freezing point of pure cyclohexane is 6.60°C and the freezing point depression constant is 20.00°C/m. The freezing point of a solution containing 0.135 g of an unknown ...
February 16, 2015

Math
A math teacher wishes to use groups of 5 and/or 7 students for a class assignment. When she tries to make assignments she notices that it cannot be done with the number of students in her class. However, if the number of students were any larger, the assignments could be made...
January 30, 2015

math
how can you rename a mixed number to help you subtract
January 26, 2015

math
Jamal made a list of fractions and asked Will to find the fraction written in simplest form. Which fraction should Will choose? 1/8, 3/89, 9/18, 6/10?
January 13, 2015

english
In the following sentence identify the appositive or appositive phrase and the noun or pronoun renamed by the appositive. Mr. Murray, the Scoutmaster, likes to hike. Appositive: Noun or pronoun renamed:
January 12, 2015

math
what is 8/100, 3/5, 7/10 least to greatest
January 12, 2015

Geometry
The sides of a triangle have lengths of 9, 11, and 16 units. What is the perimeter of a similar triangle with its longest side 24 units in length?
January 8, 2015

Math
Ava, Keirra, and Victoria ate exactly 3/4 of their candy bars. Ava ate 3 pieces, Kierra ate 6 pieces and Victoria ate 9 pieces. How is this possible?
January 7, 2015

math
Tyler is thinking of a number that is divisible by 2 and 3. By which of the following numbers must Tyler's number also be divisible? 6? 8? 9? 12?
January 6, 2015

math
97
December 9, 2014

math
I am a number between 60 and a 100. My ones digit is 2 less than my tens digit. I am a prime number. What am I? Explain.
December 9, 2014

math
The factors of a number include 2, 3, 4, 6, 8, 12, 16, 32, and 48. Which could be the number?
December 9, 2014

math
Manny makes dinner using 1 box of pasta and 1 jar of sauce. If pasta is sold in pckages of 6 boxes and sauce is sold in packages of 3 jars, what is the least number of dinners that Manny can make without any supplies left over?
December 9, 2014

Child Development
What kind of teacher are you to say my answers are laughable?
December 8, 2014

Child Development
Please Check my answers 1. A type of communication that isn't only about the present and that promotes higher level thinking such as planning and reminiscing is called A. child-child conversation. B. chanting. C. early production. D. decontextualized talk. ANSWER: A 2. ...
December 8, 2014

Child Development
I corrected the other ones that were wrong can you please check them? Thank you:) 2) B 4) D 8) A 9) C 10) A 11) D
December 4, 2014

Child Development
Can you check these? 1a) The recording method that's most useful in discovering the causes or results of a child's behavior is A. rating scale.  B. time sampling. C. event sampling. D. checklist. ANSWER : B 2a) Which of the following can...
December 4, 2014

Child Development
2) C 4) D 8) A 9) C 10) A 11) D
December 4, 2014

Child Development
10) A?
December 4, 2014

Child Development
1) B 2) D 3) A 4) B 5) A 6) C 7) B 8) B 9) A 10) C 11) A 12) B
December 4, 2014

Child Development
Possibly
December 4, 2014

Child Development
1) The recording method that's most useful in discovering the causes or results of a child's behavior is A. rating scale. B. time sampling. C. event sampling. D. checklist. 2) One way a teacher can help a child stand up for her rights is A. making other ...
December 4, 2014

Chemistry
A 100.0 mL sample of a 0.200 molar aqueous solution of K2CrO4 was added to 100.0 mL of a 0.100 molar aqueous solution of BaCl2. The mixture was stirred and the precipitate was collected, dried carefully, and weighed. How many grams of precipitate should be obtained? The ...
December 1, 2014

Calc
Three students have ordered a 14 inch diameter pizza. They slice it with 2 parallel cuts, giving them 3 pieces with equal area. The two cuts are equidistant from the center of the pizza. Find the horizontal distance between one cut and the center of the pizza. I figured the ...
November 23, 2014

chem
How many mL of a 0.123 M aqueous solution of aluminum bromide, AlBr3, must be taken to obtain 7.77 grams of the salt?
November 18, 2014

college algebra
Suppose that the Russian population is declining by 0.48% each year, and continues to decline at this rate every year. a.) what is the overall 'growth' factor (really a decline factor) for 40 years of population decline? As a percentage of the current population, what ...
November 17, 2014

math- bc calc
a building is 36 ft tall. A pulley is attached to the top of the building. A rope is looped through the pulley. One end of the rope is attached to the lantern that hangs vertically parallel to the side of the building. The rope passes up vertically from the lantern, through ...
October 29, 2014

math
A college student is looking at her monthly checking account records. On September 1, 2008, her checking account held a balance of $1,050. At the end of March 2009, her checking account held a balance of $800. What is the monthly rate of change for the student’s checking ...
October 23, 2014

Salford
How to prepare 500ml of 7% Question 6 You need to make 500mls of a 7% bovine serum albumin solution. What mass, in grams, do you need to add? Perform the calculation then type in the correct answer to 1dp. Do not add units or additional spaces. 10 points
October 19, 2014

Physical Science
A box has a mass of 90 kg If the box is accelerating upward at 1.0m/s2, what is the tension of the cable?
October 14, 2014

com 200
All of the following are true of what typically occurs when first meeting someone EXCEPT:
October 7, 2014

Physics
A plane with a velocity of 111. 9 meters per second at a maximum rate of 6.8 m/s^2 the plane touches the runaway what's the minimum time before it can come to rest? A=6.8m/s^2 V=111.9m/s t=?
September 28, 2014

Math Homework
183.79
September 28, 2014

Chemistry
If you dilute 14.0mL of the stock solution to a final volume of 0.350L , what will be the concentration of the diluted solution? Before it, there was a question: How many milliliters of a stock solution of 5.60 M HNO3 would you have to use to prepare 0.190L of 0.450 M HNO3? ...
September 27, 2014

Chemistry
A professor orders 250 mL of house coffee at precisely 95°C. She then adds enough milk at 10°C to drop the temperature of the coffee to exactly 90° C. Calculate the amount of milk (in mL) the professor must add to reach this temperature. Assume that the coffee and ...
September 23, 2014

physics
A motorcycle daredevil is attempting to jump across as many buses as possible (see the drawing). The takeoff ramp makes an angle θ = 16.8° above the horizontal, and the landing ramp is identical to the takeoff ramp. The buses are parked side by side, and each bus is 2...
September 21, 2014

philosopy
Milton Friedman observes that if the same argument that advocates of corporate social responsibility say should be brought to corporate shareholders is instead brought before union members, the logical bankruptcy of the argument would be clearly evident because?
September 17, 2014

Physics
Bill throws a tennis ball vertically upward such that it leaves his hand with a speed of 12 m/s. Bill catches the ball at the same height from which he released it. Assume that air resistance is negligible, so the tennis ball can be considered to be in free-fall, with an ...
September 12, 2014

Chemistry
The level of water in a rectangular swimming pool needs to be lowered 4.00 inches. If the pool is 36.50 ft long and 15.00 ft wide, and the water is siphoned out at a rate of 5.0 gal/min, how long will the siphoning take? 1 ft^3 = 7.48 gal.
August 28, 2014

physics
A swimmer heads directly across a river, swimming at 1.5 m/s relative to the water. She arrives at a point 30 m downstream from the point directly across the river, which is 87 m wide. (c) In what direction should the swimmer head so as to arrive at the point directly opposite...
August 9, 2014

physics
AH! Sorry, I didn't know it would make the site look messy. I've been working on these for a while now,and I promise I just a lot of work into them. i didn't realize I had posted so many. Sorry.
August 9, 2014

physics
Two boat landings are 8.0 km apart on the same bank of a stream that flows at 2.8 km/h. A motorboat makes the round trip between the two landings in 50 minutes. What is the speed of the boat relative to the water?
August 9, 2014

physics
Ball A is dropped from the top of a building of height h at the same instant that ball B is thrown vertically upward from the ground. When the balls collide, they are moving in opposite directions, and the speed of A is twice the speed of B. At what height does the collision ...
August 9, 2014

physics
You have designed a rocket to be used to sample the local atmosphere for pollution. It is fired vertically with a constant upward acceleration of 17 m/s2. After 20 s, the engine shuts off and the rocket continues rising (in freefall) for a while. (Neglect any effects due to ...
August 9, 2014

physics
You have designed a rocket to be used to sample the local atmosphere for pollution. It is fired vertically with a constant upward acceleration of 17 m/s2. After 20 s, the engine shuts off and the rocket continues rising (in freefall) for a while. (Neglect any effects due to ...
August 9, 2014

physics
A swimmer heads directly across a river, swimming at 1.5 m/s relative to the water. She arrives at a point 30 m downstream from the point directly across the river, which is 87 m wide.
August 9, 2014

physics
You are riding in a boat whose speed relative to the water is 7.4 m/s. The boat points at an angle of 24.8° upstream on a river flowing at 15.2 m/s. Find the time it takes for the boat to reach the opposite shore if the river is 26.1 m wide.
August 9, 2014

American History
11. Which of the following is true of the Supreme Court's decision in Brown v. Board of Education of Topeka? A. It ruled that desegregation was a state issue, but that segregation was a federal issue. B. It established that all citizens should have access to public ...
July 25, 2014

algebra
Please help me solve this: If an object is projected upward with an initial velocity of 112 feet per second from a height h of 128 feet, then its height t seconds after it is projected is defined by the equation h=-16t^2 + 112t + 128. How many seconds after it is projected ...
July 14, 2014

trig
At a horizontal distance of 101 meters from the base of a tower, the angle of elevation to the top is 15 degrees. Find the line of sight distance to the nearest meter.
May 28, 2014

math
A 1.6 km road rises 400 m. What is the angle of elevation of the road to the nearest degree?
May 28, 2014

math problem
In DABC, what could the 7 shown in the ratio sin A = 7/9 represent? A) the length of the adjacent side of angle B B) the length of the opposite side of angle A C) the length of the hypotenuse of a right triangle D) the length of the adjacent side of angle A I did this as an ...
May 27, 2014

math
thank you
May 27, 2014

math
A ladder is leaning against the side of a house and forms an angle of 66o with the ground. The foot of the ladder is 11.3 feet from the base of the house. Find the length of the ladder to the nearest foot.
May 27, 2014

trig
thank you, I was confused
May 27, 2014

trig
A road has a 10% grade (slope). To the nearest degree what is the angle of elevation of the road? should I use sin?
May 27, 2014

trig
A 15 ft. ladder makes a 35o angle with the side of a house. To the nearest tenth of a foot how high up on the house does the ladder come?
May 27, 2014

math
The Washington Monument is 169 meters high. Find the angle of elevation to the nearest degree to the top of the monumenmt from a point .5 km from the base.
May 25, 2014

need help1 what function to use? math
thank you
May 25, 2014

need help1 what function to use? math
An airplane approaches a runway at a 3 degree angle of depresssion. If the plane is flying at 30,000 ft., find the ground distance from the airport to the point directly below the plane when the pilot begins the descent. Round your answer to the nearest foot.
May 25, 2014

trig
Robert is standing on a cliff and looks down at an angle of depression of 62 degrees to look at a boat. The cliff is 76 feet high. How far is the boat from the cliff? Round your answer to two decimal places. The boat is _________ feet from the cliff.
May 24, 2014

geometry
thanks. steve
May 22, 2014

geometry
Part of a road that is 452 meters in length has a slight incline. The vertical rise is 12 meters. Find the angle of elevation. can anybody help? and it must be rounded to the nearest tenth
May 22, 2014

math
To secure a 500 meter radio tower against high winds, guy wires are attached to a ring that is 5 meters from the top of the tower. The wires form a 15 degree angle with the tower. Find the distance from the base of the tower to the guy wire anchor in the ground. Round your ...
May 22, 2014

Science
expired medicines
May 19, 2014

Statistics
The Jefferson valley bank claims that the variation of their wait time is less when using a single line that feeds three tellers as opposed to having threes peerage lines. Test the claim that the standard deviation for wait time is less than 1.9 minutes with a single feed line...
May 7, 2014

pre calculus
4+7i divided by 2 (problem is written as a fraction) 4+7i _________ 2
May 1, 2014

pre calculus
Express statement as an equation. Use the given information to find the constant proportionality z varies inversely as t. If t  3, then z  5.
May 1, 2014

pre cal
An airplane is flying at a speed of 350 mi/h at an altitude of one mile. The plane passes directly above a radar station at time t  0. (a) Express the distance s (in miles) between the plane and the radar station as a function of the horizontal distance d (in miles) that ...
May 1, 2014

pre calculus
You have a $50 coupon from the manufacturer good for the purchase of a cell phone. The store where you are purchasing your cell phone is offering a 20% discount on all cell phones. Let x represent the regular price of the cell phone. (a) Suppose only the 20% discount applies. ...
May 1, 2014

algebra 2/trig
Tina can paint a room in 8 hours, but when she and her friend Emily work together, they can complete the job in 3 hours. How long would it take Emily to paint the room alone?
April 9, 2014

pre calculus
determine whether the equation defines y as a function of x. √x + y = 12
April 8, 2014

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