Tuesday
September 1, 2015

Posts by brittney


Total # Posts: 223

intermediate algebra
He purposely made a problem with not enough info.
May 6, 2015

intermediate algebra
This is word for word what my teacher wrote
May 6, 2015

intermediate algebra
the radiator in Johns car contains 16 L of antifreeze. How much of this mixture should be drained and replaced with pure antifreeze so there will be a mixture of 50% antifreeze.
May 6, 2015

reading and writing
d.
March 22, 2015

reading and writing
In which sentence does the italicized word have a negative connotation? A. Although she had worked hard in high school, Ruth found the college courses challenging. B. Jenna's green eyes and dark eyelashes gave her an exotic look. C. Jack, who is the most outspoken member ...
March 22, 2015

mathematics concepts
Fraction symbols can usually be safely introduced A. at the beginning of third grade. B. near the end of first grade. C. near the end of third grade. D. at the beginning of second grade. my answer is c.
February 21, 2015

math concept
Sarah understands that if there are 11 ones, the first 10 move over to the tens column as one unit (i.e., one group of 10). What concept does this understanding represent? A. Renaming B. Regrouping C. Borrowing D. Place value my answer is a
February 21, 2015

mathematics concepts
Joseph is making different shapes with a rubber band and a geoboard. Which of the following would be a geometric concept that Joseph is informally exploring? A. Estimation B. Patterns C. Volume D. Probability my answer is b.
February 21, 2015

cconcept development
I took the exam and my answer was correct.
February 17, 2015

cconcept development
When a teacher chooses learning objectives for a child, which question should be asked? A. What should Kelly learn next? B. Where's Kelly in the learning process? C. Do the plan and materials fit my lesson? D. Has Kelly learned what was taught? a.
February 17, 2015

concept development
A basic rule in evaluating learning activities is to be sure A. the child has no prior knowledge. B. a variety of science process skills are used. C. the strategies are limited. D. the textbook provides step-by-step photos. my answer is b.
February 17, 2015

concept development
thanks
February 17, 2015

concept development
The answer was correct. I had 100 point in my exam.
February 17, 2015

concept development
I reread the chapter and I find the answer.is d.
February 17, 2015

concept development
the question is not specific.
February 17, 2015

concept development
Which of the following process skills is generally more important for use with older children? A. Observing B. Communicating C. Classifying D. Predicting my answer I think is c.
February 17, 2015

Math
A rectangle wheat field is 10^5 m long as 10^5 m wide. What is the area?
February 15, 2015

Chemistry
An original samplemof an unknown potassium chloride/potassium cholate mixture weighed 1.042g before heating and 0.943g after heating. How many grams of oxygen were released?
February 6, 2015

chemistry
I'm sorry the reast says to calculate the van't Hoff factor (i) for MX at this concentration.
January 30, 2015

chemistry
A 0.97 m aqueous solution of an ionic compound with the formula MX has a freezing point of -2.5 ∘C .
January 30, 2015

English 3
"When in the Course of human events, it becomes necessary for one people to dissolve the political bands which have connected them with another, and to assume among the powers of the earth, the separate and equal station to which the Laws of Nature and of Nature's God...
November 3, 2014

physics
A marble rolls off the edge of a table that is 0.82 m high. The marble is moving at a speed of 0.11 m/s at the moment that it leaves the edge of the table. How far from the table does the marble land?
November 2, 2014

math
Explain and show hot to convert 0.765 to fraction
September 12, 2014

math proportions
What is 1000/x = 25/64
September 8, 2014

math
There are 40 students. 16 students missed class. What % of students attended class
September 8, 2014

science
I measure my head fist 28m , 65cm now i'm stuck trying to figure out how to measure my head in mm and km. I need help please.
September 7, 2014

Physics
How is the Sky Screamer at Six Flags an example of Newton's First Law?
August 25, 2014

psychology
Why do negative emotions make it hard to learn or work toward a goal?
August 24, 2014

medical coding
this 32-year old female was burned by hot grease in her kitchen 1 week ago. She is seen in the hospital-based wound clinic for large dressing changes on both upper extremities following second-degree burns to both arms. This is accomplished without requiring anesthesia. I got ...
August 14, 2014

Statistics
A survey of 1,000 adult Americans included the following question: "If the military draft were reinstated, would you favor or oppose drafting women as well as men?" Forty-three percent responded that they would favor drafting women if the draft were reinstated. Using...
May 23, 2014

math
Please Help!!!!! If i spent 3 hours in homework and of that time 1/3 on math and 1/5 on science, what method could i use to solve this problem????????? Please Help Thanks!!!!
April 24, 2014

World History
1. Greek and Roman legacies to the world include contributions to modern law and government. Describe how modern law and government have been influenced by classical Greece and Rome. Include at least two examples from the Greeks and two examples from the Romans.
April 23, 2014

Math
A motorist traveling 55 mph is being pursued by a highway patrol car traveling 65 mph. If the patrol car is four miles behind the motorist, how long will it take the patrol car to overtake the motorist?
November 5, 2013

Chemistry - Please Help!
XeO3 + I- ----> Xe + I2 (acidic solution) CN)2 -----> CN- + OCN- (basic solution) MnO2 + SO32- ---> Mn2+ + S2O62- (acidic solution) H2SeO3 + H2S -----> S + Se (acidic solution) Cl2 ---> Cl- + ClO3- (basic solution) ClNO2 -----> NO3- + Cl- (acidic solution)
October 27, 2013

Chemistry
Balance the following equation for a basic solution. MnO4-+C2O4-2= Mno2 + CO3-2
October 27, 2013

math
Kittens weigh about 100 grams when born and gain 7 to 15 grams per day. If a kitten weighed 100 grams at birth and gained 8 grams per day, in how many days will the kitten triple its weight?
October 23, 2013

chemistry
J. J. Berzelius collected the following data for three reactions: Reaction 1 – 11.56 grams of lead sulfide, PbS, were formed when 10.0 grams of lead reacted with 1.56 grams of sulfur Reaction 2 – 11.56 grams of lead sulfide were formed when 10.0 grams of lead reacted...
October 9, 2013

chemistry
thank you!
October 9, 2013

chemistry
When cane sugar reacts with oxygen in living systems, carbon dioxide and water are produced. What weight of carbon dioxide can be produced from the reaction of 15.0 grams of cane sugar with 15.0 grams of oxygen? (Hint: balance the equation) ___C12H22O11(s) + ___O2(g)  ...
October 9, 2013

chemistry
thank you!
October 9, 2013

chemistry
how many H2O molecules can be formed from 200 H2 molecules and 200 O2 molecules?
October 9, 2013

chemistry
Manganese(III) fluoride, MnF3, can be prepared by the following reaction: 2MnI2(s) + 13F2(g) → 2MnF3(s) + 4IF5(l) If the percentage yield of MnF3 is always approximately 51%, how many grams of MnF3 can be expected if 40.0 grams of each reactant is used in an experiment?
October 6, 2013

Chemistry
thanks!
October 6, 2013

Chemistry
Ethanol (C2H5OH) is synthesized for industrial use by the following reaction, carried out at very high pressure. C2H4(g) + H2O(g) → C2H5OH(l) What is the maximum amount, in kg, of ethanol that can be produced when 1.65 kg of ethylene (C2H4) and 0.0610 kg of steam are ...
October 6, 2013

Physical Chemistry
Thanks!!
September 22, 2013

Physical Chemistry
Integrate the expression β = 1/V (δV / δT) at constant pressure, assuming that β is independent of temperature. By doing so, obtain an expression for V as a function of T and β at constant P.
September 22, 2013

Chemistry
Calculate the enthalpy change when 45 g of ice at -40.0 oC is heated to completely melt to liquid water at 0.0oC. (The heat of fusion for water is 333 J/g.)
April 5, 2013

math
Write a recursive formula for the sequence: 12,-1,-14,-27...
February 12, 2013

physics
The coefficients of friction between a 250 lb football sled and the grass are Mu(s)=0.6 and Mu(k)=0.4. For grass and cleats, Mu(s)=0.9. One 280 lb tryout exerts a horizontal push of 140 lb on the sled. What is the acceleration of the sled?
February 3, 2013

Vista High school
solve the following inequality. write your solutionin interval notation x^3-x<0
January 10, 2013

algebra
If you have 75 cents and you have 27 nickels and dimes how many nickels do you have.
January 6, 2013

Math
if a number is subtracted from the numerator of 3/5 and the same number is added to the denomminator of 3/5, the result is equivalent to 1. find the number
December 5, 2012

math
what times 60 equals 5076
November 20, 2012

math
rewrite the equation so that y is a function of x.then use the result to find y when x= -2,-1,0,1 -2y-3x-16=0
November 19, 2012

math
rewrite the equation so that y is a function of x.then use the result to find y when x= -2,-1,0,1 -6x-1=-4y+2
November 19, 2012

math
i meant 6x-2y=10
November 19, 2012

math
rewrite the equation so that y is a function of x.then use the result to find y when x= -2,-1,0,1 6x-2y=10
November 19, 2012

math
thanx for ur help
November 14, 2012

math
is that correct
November 14, 2012

math
4(1/2x+1/2)=2x+2 4/2x+4/2+2x+2 2x+2=2x+2 2x+2x=2+2 4x=4 x=1
November 14, 2012

math
4(1/2x+1/2)=2x+2
November 14, 2012

math
8x+6=3(4-x)
November 14, 2012

math
-6+5x=8x-9
November 14, 2012

English
Direct Object
November 4, 2012

Physics
A car traveling at 20 m/s applies the brakes. The coefficients of static and kinetic friction between the tires and the road are 0.80 and 0.50 respectively. (A) Determine the stopping distance if the car is able to stop as quickly as possible without skidding. (B) Determine ...
October 25, 2012

Math
What equivalent fraction would you use to subtract 1/3 from 5/9?
October 17, 2012

Chemistry
What is the temperature of 0.45mol of gas at a pressure of 1.0at and a volume of 10.1L ? if anyone can tell me what i need to do to solve this problem it would be helpful
October 5, 2012

physics
The radius of a merry-go-round is 7 meters, and it takes 12 seconds to make a complete revolution. What is the speed of an atom on the outer rim?
October 3, 2012

Math
How do you solve a(x+1)= b solving for x
September 20, 2012

Math
How do you solve a(x+1)= b solving for x
September 20, 2012

biology
What is meant by the statement, "Living things do not exist in isolation"?
September 11, 2012

Chemistry
If your body develops a charge of -17 (microcoulombs), how many excess electrons has it acquired, and what is their collective mass?
September 8, 2012

Chemistry
It's 50mg. I really dont understand how to do this.
September 8, 2012

math
what is the gross profit percent on a item bought for 3.50 at wholesale price and then sold at 5.00 for retail price
August 18, 2012

chemistry
1002
August 4, 2012

world literature
I do american school too, hope. If you or anyone wants a homework partner email me: brittneybwilliamson @ yah oo . co m
July 25, 2012

frictionless ramp
Suppose a 19.3 kg curling stone was on a frictionless ramp. If the ramp is 4.76 m tall and 19.5 m long (along the incline), how much mass must hang from the pulley in order that the stone not accelerate up or down the ramp?
June 21, 2012

Physics Help
A force sensor is used to measure a force applied to a 9.1 kg box on a hard, horizontal surface. It records that the box starts to move when the force is equal to 26.9 N. This force makes the box start to move with an acceleration of 0.2 m/s2. Find mu sub s/k respectively.
June 18, 2012

algebra 1
Choose the product. -7p3(4p2 + 3p - 1) -28p5 - 21p4 + 7p3 28p6 + 21p3 - 7p 21p3 + 8p2 + 3p4 - 8p -21p5 + 8p4 - 3p3
June 11, 2012

Chemistry
Calculate the uncertainty in the position (in A) of an electron moving at a speed of (6.5 +/- 0.1)* 10^5m/s. The mass of an electron is 9.109x10^-31 kg. Thanks!
May 7, 2012

algebra
If a train goes 25 mph how many hours. Does it need to go in 125 miles
May 7, 2012

history
How did George Kennan’s containment doctrine change during the Truman, Eisenhower and Kennedy administrations? Which president was the most successful in containing Communism?
April 19, 2012

history
Describe President Reagan’s foreign policy goals and summarize several of the major, specific actions he took to meet those goals.
April 19, 2012

history
How was the civil rights movement of the 1950s and 1960s a continuation of the Reconstruction-era struggle for blacks to achieve equality?
April 19, 2012

chemistry
empirical mass = (12+1= 13) molar mass = 78 78/13 = 6; therefore, (CH)6 = C6H6 so thats correct?
April 19, 2012

chemistry
Benzene has the empirical formula CH and an experimental molar mass of 78 g/mol. What is its molecular formula? Explain how you got your answer.
April 19, 2012

history
How did George Kennan’s containment doctrine change during the Truman, Eisenhower and Kennedy administrations? Which president was the most successful in containing Communism
April 16, 2012

physics
A charge of 2.1 nC and a charge of 4.7 nC are separated by 57.90 cm. Find the equilibrium position for a -4.7 nC charge. ____ cm from the 2.1 nC charge. what is the answer? and how did you get it? thaanks
April 11, 2012

chemistry
will SrSO4 precipitate when .1g of Na2SO4 are added to 1L of a .01M solution of Sr
March 21, 2012

MATH FOR TEACHERS
the roof is a right rectangular prism and the floor is a rectangle. (its the outside of a warehouse). for the roof- the base has 51 x 51. The rectangular for the floor is 120 (l) x 20 (h) x 90 (w). need to find the volume and surface area. (counting the floor) Give an ...
March 19, 2012

math for elementary teachers
the roof is a right rectangular prism and the floor is a rectangle. (its the outside of a warehouse). for the roof- the base has 51 x 51. The rectangular for the floor is 120 (l) x 20 (h) x 90 (w). need to find the volume and surface area. (counting the floor) Give an ...
March 19, 2012

math for elementary teachers
thank you. helped out alot!
March 19, 2012

math for elementary teachers
Suppose that carpeting cost $12.36 per square yard at a carpet store. what will be the cost to carpet a conference room if the rooms dimensions are 110 ft by 42 ft. (the conference room should seat 380 people using 6' diameter tables each seating 10 people.)
March 19, 2012

Chemistry
A string has a length of 84 cm. The string is stretched taut, and both ends are restricted to be nonmoving. Touching the string at which of the following points will not produce a standing wave when the string is plucked?
February 15, 2012

science
If the magnitude of the electric field in air exceeds roughly 3 X10^6 N/C, the air breaks down and a spark forms. For a two-disk capacitor of radius 52 cm with a gap of 1 mm, what is the maximum charge (plus and minus) that can be placed on the disks without a spark forming (...
February 11, 2012

history
How was Fort William Henry massacre used by the British and the American colonists to justify brutality against the Indians? HELPPPP PLEASE
February 6, 2012

history
Discuss the importance of landscape in crafting battle strategy for both the French and the English. HELP PLEASE!
January 30, 2012

philosophy
what makes an idea dangerous?
January 25, 2012

business/accounting
Christy Burch and Myung Lim, partners, compared their current income statement with their income statement of a year ago. They noted that sales were 12.0% higher than a year ago. They also noted that the total expenses were 20.0% higher than a year ago. What type of analysis ...
January 17, 2012

Liberal Arts
Part 1: You finally made it…graduation day has arrived! Your parents are so proud that they are throwing you a HUGE party. They have rented a big tent for your graduation party just in case it rains. The inside of the tent (represented by the blue area) is set up for a ...
January 14, 2012

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