Wednesday
October 22, 2014

Posts by Emma


Total # Posts: 1,206

PHYSICS
a locomotive pulls 10 identical freight cars with an acceleration of 2m/s^2. How does the forced between the third and fourth cars compare to the force between the seventh and eighth cars?
July 5, 2014

Algebra
The vertex of a parabola is at (-2,4), and the x-intercepts are at -6 and 2. Determine the domain and range of the function. a. D: all real numbers R: all real numbers b. D: all real numbers R: y ≤ 4 c. D: -6 ≤ x ≤ 2 R: y ≤ 4 d. D: x ≤ 4 R: all ...
July 4, 2014

Algebra
All parabolas are symmetric with respect to a line called the axis of symmetry. A parabola intersects its axis of symmetry at what point? a. vertex b. function c. translation d. y-intercept Is it A. vertex?
July 4, 2014

Algebra
Which of the following is not a step in graphing a quadratic function? A. Find the equation for the axis of symmetry. B. Find the slope. C. Find the coordinates for the vertex. D. Plug in values for x around the vertex to get values of y Is B correct?
July 3, 2014

Algebra
The choices are: A.y=2x^2-12x+10 B. y=-1/2x^2+3x-11/2 C. y=x^2-6x+10 D. 2x^2-7x+4
July 3, 2014

Algebra
The vertex of the graph of a quadratic function is (3, 1) and the y-intercept is (0, 10). Which of the following is the equation of the function?
July 3, 2014

Algebra
Thanks! So I just want to make sure when I'm finding decay rate (in percent) do I just subtract 1-r?
July 3, 2014

Algebra
r=10.5(0.535)^x determine the decay rate
July 3, 2014

Algebra
What is the growth rate of the function y=3*2^x? Is the answer 1?
June 29, 2014

Algebra
Mary creates a table of values for a function and plots the points. She finds that the difference in the y values is the same. What kind of function did she graph? How can you tell if a graph is linear, quadratic, exponential or square root?
June 28, 2014

Algebra
Which is an equivalent form of the expression 1800(1.2)–t? Is 1800(1/2)^t correct?
June 28, 2014

Algebra
A population of ants is growing at a rate of 10% per month. What is the growth factor?
June 28, 2014

physics
a car is driven off the edge of that is 54.0 m high. the point of impact is 130m from the base of the cliff. how fast was the car traveling in (miles/hr) when it went over the cliff?
June 28, 2014

physics
with an initial speed of 260km/h a train takes 1.50 x 10^3 m to stop on a level track. assuming the 'deceleration' is constant. what is the time in seconds taken for stopping?
June 28, 2014

physics
what was the initial velocity of a race car traveling down a long straight track if it accelerates at 5.79m/s^2 and ends up going 163km/h in a time of 3.60 seconds?
June 28, 2014

Algebra
Which of the following statements is the best description of exponential decay? A. Exponential behavior occurs when a function increases at a rate of increasing value. B. Exponential behavior occurs when a function increases at a rate of decreasing value. C. Exponential ...
June 27, 2014

Algebra
Which of the following is an example of exponential growth or decay? A. a colony of bacteria staying constant in quantity each week B. a colony of bacteria doubling in quantity each week C. a colony of bacteria increasing by 100 in quantity each week D. a colony of bacteria ...
June 27, 2014

Algebra
divide and simplify the radical (3+ sqrt18)/4 sqrt12 I'm not sure how to conjugate the denominator?
June 26, 2014

Algebra
2√3 times 4√21 the answer is 24√7 but I don't understand how you would get that.
June 26, 2014

algebra
Simplify the square root of 50. A. 5 times the square root of 2 B. the square root of 5 times the square root of 10 C. 2 times the square root of 5 D. 25
June 23, 2014

Algebra
Find a recursive rule for the sequence 3, 6, 12, 24, … I can't decide if it's a sub n= (2)n times sub n-1 or a sub n= 1/2 times sub n-1
June 22, 2014

algebra
Solve the system of equations. 9x + y = 2 –4x – y = –17 I don't understand how you solve this.
June 16, 2014

Algebra
What is the solution to the system of equations that contains –3x + y = 3 and 2x – y = –1? A. no solution B. (–1, 3) C. infinite number of solutions D. (–2, –3)
June 16, 2014

Geometry
The radius of circle a (which is 6) is multiplied by 1/2. Describe the effect of the change of the area.
June 9, 2014

Goemetry
segment PQ with endpoints P(4,2) and Q(2,17) is dilated by a scale factor of 4. Find the length of segment P',Q'
June 9, 2014

geometry
Okay, thanks!
June 9, 2014

geometry
solve the proportion: 5/2=22/24w the answer is 11/30 but I don't understand how you get that.
June 9, 2014

Physics
Calculate the maximum acceleration of a car that is heading up a 9.5° slope, assume that only half the weight of the car is supported by the two drive wheels and that the static coefficient of friction is 1.
June 9, 2014

algebra
Sorry I didn't see that he answered. thank u
June 5, 2014

algebra
so the answer is no??
June 5, 2014

algebra
please help!!!!!!!!!!!
June 5, 2014

algebra
does the data in the table represent a linear function? if so, wirte a rule for the function. (below is what the table looks like) x | -2| -1| 0 | 1| 2| y | -7| 1| 8 | 17| 25| answer choices yes; y = 8x +9 yes; y = 8x + 8 no yes; y = 1/8x + 8
June 5, 2014

History Paper
Thanks! and yes, this is for my exam final.
June 4, 2014

History Paper
How have this event affected American society, with regards to the labor force, the economy, societal groups, housing, and overall lifestyles? Describe the attitudes and beliefs The US Government and Americans have towards war, as the U.S entered and exited the wars. How have ...
June 4, 2014

History Paper
What impact have the following conflicts had upon the US? (WWII, Korea, Vietnam, the Wars in Gulf, Iraq, and Afghanistan.) I have an outline of what I'm going to write but I just don't where to start, how to put it in words.
June 4, 2014

Statistics
Please answer yes or no to the following question for my statistics project: Are you in favor of welfare for those in need?
May 16, 2014

ap stats
two different sections of electricians took their state license test. the first section consisted of 75 applicants having an average score of 262 and a sample standard deviation of 35. they were journeyman, experienced electricians who were renewing their licenses. the second ...
May 13, 2014

ap stats
based on over 800 housing prices collected at random from the city of Los Angeles, an investigator constructed a histogram and found that the distribution of housing prices was heavily skewed to the right. Which of the following statistics will best represent the center of ...
May 13, 2014

ap stats
Based on historical data, an Oregon university enrolls 17% graduates and 83% undergraduates. Of graduates, 21% are expected to be non-residents and 79% are residents. Of undergraduates, 24% are non-residents and 76% are residents. During the 2008-2009 academic year, assume ...
May 13, 2014

environment
Oil spills and leaks in the Pacific Ocean have harmed marine organisms and the environment. Which kind of environmental issue is illustrated by this example?
May 7, 2014

Geometry
Please help me 1.The surface are of the exterior of hollow rubber ball is 16pi in^2.The rubber is 1/4 inch thick. Find the surface are of the interior of the ball. 2. The length of each side of a cube is 6 inches long. Find the exact area of a sphere inscribed in the cube.
May 4, 2014

Geometry
Which if the following is equivalent to 7pi/4? A.285 degrees B. 305 degrees C. 315 degrees D. 330 degrees E. 375 degrees
May 4, 2014

VOCABULARY
WRITE A BRIEF SPEECH IN WHICH YOU SUMMARIZE THE STORY OF RINGL AND PIT, USING IT AS AN INSPIRING ANECDOTE TO SHOW YOUR AUDIENCE THAT THEY TOO CAN OVERCOME DIFFICULT CIRCUMSTANCES . USE AT LEAST TWO DETAILS FROM THE PASSAGE AND THEREE UNIT WORDS TO SUPPORT YOUR POINTS ? YES I ...
May 3, 2014

ap statistics
Seventy-five (75) people with hypertension were given a new drug for the treatment of their condition. Blood pressure was lowered sufficiently to reduce the risk of serious outcomes in 20 of the 75 patients. 
(B) Calculate a 95% confidence interval for the proportion. ...
April 29, 2014

math
OH OK THANK YOU
April 28, 2014

math
2x+8=3x+2 Can you please help me solve this one problem please
April 28, 2014

English Essay
I'm writing an essay for To Kill A Mockingbird and the claim I came up for my essay is "Children are never too young to understand the realities of life." I'm writing the extended paragraph right now where I have to come up with a good example from the story ...
April 27, 2014

ap statistics
What would the null and alternate hypothesis be? A fire insurance company felt that the mean distance from a home to the nearest fire department in a suburb of Chicago was at least 4.7 miles. It set its fire insurance rates accordingly. Members of the community set out to show...
April 26, 2014

ap statistics
What would the null and alternate hypothesis be for this problem? The manager at Air Cargo feels that the weights of packages shipped recently are less than in the past. Records show that in the past packages have had a mean weight of 36.7 lb. and a variance of 201.64 lb2. A ...
April 26, 2014

math
OH OK THANK YOU STEVE
April 26, 2014

math
F(x)=x^2-2x-3 plz help me slove this ?
April 26, 2014

letter
mm yes i guess it good dylan but try harder
April 25, 2014

ap statistics
What is the mean of the sample means? What is the standard deviation of the sample means?
April 25, 2014

GOVERNMENT
OK thank you
April 24, 2014

GOVERNMENT
TOP 5 PERFORMING MUTUAL FUNDS AND THEIR % RETURNS FOR 2013 PLEASE HELP ME I DO NOT UNDERSTAND WANT TO DO NOW.
April 24, 2014

ap statistics
In hypothesis testing, β is the probability of committing an error of Type II. The power of the test, 1 - β, is then: A. the probability of failing to reject H0. B. the probability of rejecting H0 when HA is true C. the probability of failing to reject H0 when H0 is ...
April 24, 2014

ap statistics
What is the mean of the sample means? What is the standard deviation of the sample means?
April 24, 2014

english
ok thank you ms. sue
April 21, 2014

english
OK YES I KNOW I WANT TO BE IN ACTRESS WHEN I GROW UP BUT WHAT DO I HAVE TO DO NEXT PLEASE HELP ME
April 21, 2014

english
EXPLAIN WHAT YOU WANT TO BE WHEN YOU GROW UP ? THEN WRITE A LOVE SONG ABOUT SOMEONE YOU HAVE A CRUSH ON PLEASE HELP ME I DO NOT UNDERSTAND THIS I DO NOT KNOW WHAT DO TO NOW
April 21, 2014

english
PLZ HELP ME
April 21, 2014

english
What are the characteristics of an effective television newscaster? Explain.
April 21, 2014

BIOLOGY
undigested food enters the intestine called the ? chyme is this answers right ? PLEASE HELP ME
April 21, 2014

Biology
plz answer me
April 21, 2014

Biology
undigested food enters the intestine called the ? chyme is this answers right
April 21, 2014

english/vocabulary
BECAUSE IT HARD
April 16, 2014

english/vocabulary
A LOT THO
April 16, 2014

english/vocabulary
write each vocabulary words in a syllable and indicate stress marks ? here are the words 1.auxiliary 2. candid 3. cubicle 4. drudgery 5.envoy 6.escalate 7.expedient 8.feign 9.flair 10.grievous 11.heterogeneous 12.horde 13.impel 14.incredulous 15. inscribe 16.monologue 17....
April 16, 2014

english/vocabulary
i am every stuck
April 16, 2014

english/vocabulary
ok then
April 16, 2014

english/vocabulary
ok thank you now i get it
April 16, 2014

english/vocabulary
sorry i do not understands
April 16, 2014

english/vocabulary
ms. sue can you explain what are syllable and indicate stress marks ? for english and vocabulary
April 16, 2014

english/vocabulary
no i do not need define
April 16, 2014

english/vocabulary
write each vocabulary words in a syllable and indicate stress marks ? here are the words 1.assurance 2. asylum 3. console 4. dilate 5.dross 6.dwindle 7.flippant 8. immunity 9.institute 10. liability 11.preposterous 12.pugnacious 13. rabid 14.realm 15. rejuvenate 16. remunerate...
April 16, 2014

Chemistry
if you have 9.50x10^25 molecules of KClO3 how many grams of KCl and O2 will you get? The balanced equation is 2KClO3 = 2KCl + 3O2
April 6, 2014

English
I am writing an essay on honor killing and i don't know what to put for my "call for action?" PLEASE HELP
March 15, 2014

Physics
The differential gear of a car axle allows the wheel on the left side of a car to rotate at a different angular speed than the wheel on the right side. A car is driving at a constant speed around a circular track on level ground, completing each lap in 20.2 s. The distance ...
March 9, 2014

English
I am writing about an argument advertising essay and right now I am writing about the the NERF Fire-strike blaster. In the commercial it uses a fast, upbeat music but how do I relate it to "fire" (how is fire similar to upbeat and fast"?
March 2, 2014

Chemistry
A solution has 140 grams of KOH dissovled in 5 L of water. What is the pH ?
February 26, 2014

Chemistry
9. A solution has 48 grams of LiOH dissovled In 100 L of water. What is its [OH-]? 10. What is the pH of the solution in question 9?
February 26, 2014

Chemistry
What is the pOH of the solution in the question I asked before this one?
February 26, 2014

Chemistry
A solution has 0.45 mol of NaOH dissovled in 90 L of water. What is its [OH-]?
February 26, 2014

Chemistry
A solution has 189 grams of HNO3 dissolved in 1000L of water. What is pH?
February 26, 2014

Chemistry
What is the pH of the solution in question 3
February 25, 2014

Chemistry
1000L
February 25, 2014

Chemistry
3.a solution has 64 grams of HI dissolved in 250 L of water. what is its [H+] 4. What is the pH of the solution in question #3? 5. A solution has 189 grams of HNO3 dissolved in 1000 L of water. What is pH?
February 25, 2014

math
in the number 288, explain how the value represented by the digit in the tens place is related to the value represented by the digit in the ones place.
February 24, 2014

History
How should I start my reaction essay off? I looked up examples online and most sources say to state the title and the author but I'm not sure how to "form" the first paragraph. This is what I have so far.. After reading the article Survivors, I felt horrified, ...
February 22, 2014

RE: History
Ms. Sue, Here are my reactions to the article about the survivors. Horrified, disgusted and heart-broken
February 21, 2014

Chemistry
How much water would I need to add in order to dilute 200mL of a 5 M solution down to 2 M?
February 21, 2014

History
I have to read an article called "Survivors" and it's about people in the Holocaust. Then I have to write a 1-2 page essay about MY REACTION to the article and NOT a summary. I'm just stuck on how I should start my essay off. Any ideas? Thanks!
February 20, 2014

Chemistry
I honestly don't know the teacher have us this worksheet that says percent compostion.
February 20, 2014

Chemistry
Christian Brothers Brandy (80%, 1.7 L) what do I do with this problem it's a percent compostion work sheet
February 20, 2014

Chemistry
I tried and didn't get a accurate answer.
February 20, 2014

Chemistry
I have 500 mL of a 6.0 M solution that I want diluted down to 2 M. How many mL of water should I add to the solutiion. " FOR EVERY PROBLEM YOU MUST DRAW A PICUTRE"
February 20, 2014

Chemistry
If I leve 750 mL of 3.6 sodium chloride solution uncoverd and 150 mL of the solvent evaporates overnight, what is the new solution concentration?
February 20, 2014

chemistry
if I dilute 250 of mL of 2.4 M lithium hydroxide solution so that it's new volume is 750 mL, what is the concentration of the solution? 
February 20, 2014

physics
If the voltage drop across each light bulb is the same, what can we say about the resistance of each of the light bulbs?
February 13, 2014

Math
hi
February 11, 2014

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