Saturday
August 29, 2015

Posts by LIZZY


Total # Posts: 197

Statistics
The music industry must adjust to the growing practice o consumers downloading songs instead of buying CDs. It therefore becomes important to estimate the proportion of songs that are currently downloaded. How many randomly selected song purchases must be surveyed to determine...
July 22, 2015

Statistics
A survey of 925 voters in one state reveals that 408 favor approval of an issue before the legislature. Construct the 90% confidence interval for the true population of all voters in the state who favor approval.
July 22, 2015

Statistics
The Tyco Video Game Corporation finds that it is losing income because of slugs used in its video games. The machines must be adjusted to accept coins only if they fall within set limits. In order to set hose limits, the mean weight of quarters in circulation must be estimated...
July 22, 2015

Statistics
I'm not quite sure I understand. What do I use as the score, and what do I use for n.
July 20, 2015

Elementary statistics
Thank you so much!!!
July 20, 2015

Elementary statistics
Scores on an English test are normally distributed with a mean of 78% and a standard deviation of 4.5%. Find the value of the first quartile.
July 20, 2015

Elementary Statistics
Thank you so much. I greatly appreciate it.
July 20, 2015

Elementary Statistics
The diameters of pencils produced by a certain machine are normally distributed with a mean of 0.39 inches and a standard deviation of 0.04 inches. If 500 pencils are selected how many would you expect to have a diameter more than 0.33 inches?
July 20, 2015

Math statistics
A mountain search and rescue team received an average of 600 calls per year. Use the poisson dustribution to find the probability that on a randomly selected day, they will receive 1 or more calls.
July 7, 2015

Math statistics
Ten percent of Americans adults are left-handed. A statistics class has 50 students in attendance. Find the standard deviation for the number of left-handed students in such classes of 50 students
July 7, 2015

Math statistics
For a certain computer program a password must be exactly 5 characters long. The first character must be a mnber 0-8, the second, third and fourth character can either be one of the 26 letters or a number 0-5, the fifth character has to be exactly the same as the second ...
July 7, 2015

Math Statistics
In the power ball lottery game, winning the jackpot requires that you select the correct five unique numbers between 1 and 58 inclusive (don't have to match the order) and, in a separate drawing, you must also select the correct single nber between 1 and 13 inclusive. Find...
July 7, 2015

amplifiers
Question 10. 10. (TCO 3) A particular BJT has a base DC current of 1 mA and a collector DC current of 10 mA. What is the DC beta for this transistor? (Points : 7) 1 10 100 1,000
June 23, 2015

math117A
An object 4.2 feet tall casts a shadow that is 12.6 feet long. How long in feet would the shadow be for an object which is 20.4 feet tall? A.12 feet B. 6.8 feet C.28.8 feet D.61.2 feet
June 14, 2015

science
i live in orlando?
June 1, 2015

science
Could someone who goes to connexus academy Please please please give me the answers to Human Impact on the Environment Unit Test pretty please im stressed out and im backed up.please please help i will repay you! please!!!! and please may they be the CORRECT answer. Thank you ...
June 1, 2015

english
I read it. I thought the theme is related to gentleness and good nature. But I can't come up with a good theme for this story that relates to gentleness and good nature
May 8, 2015

math
what is the theme of the story the Christmas goblin by Charles Dickens?
May 8, 2015

civics and careers
Canadian charter of rights and freedom
April 7, 2015

civics and careers
How does people's legal rights in the charter related to citizenship (informed, active citizen)? As many reasons as possible
April 7, 2015

Mathematical literacy
Assume there are 4 people living in the house nd their daily average consumption is 25litres per person per day nd there are 30days in a month . Calculate the average monthly water consumption for the household.
March 3, 2015

math
Solve 6k^2-17k-3=0
March 1, 2015

Math
x^3-x^2-36x+36=0
March 1, 2015

7th grade challenge math
of 109.6 million house holds, 19,508,800 watched the television show CIS during the week of October 3, 2005. what percent of american households watched CIS this week?
January 6, 2015

History
@Ms.Sue please check this
January 5, 2015

History
1.Which of these was a precedent that George Washington set? A. constitutional amendment process B.formal presidential dinners C.singing of the national anthem D.use of a presidential cabinet 2.“The time for a new election of a citizen be president of the United States is...
January 5, 2015

English
Would it be Feeling some stress when you face difficulties is natural Or Feeling some stress when you face difficulties are natural
August 26, 2014

Statistics
As the sample size gets larger, what happens to the size of the correlation that is needed for significance?
May 2, 2014

Statistics - Help!!!
An independent measures research study compares three treatment conditions using a sample of n=5 in each treatment. For this study, the three samples have SS1=10, SS2=20, SS3= 15. What value would be obtained for MS within?
May 2, 2014

statistics
A research study comparing three treatments with n=5 in each treatment produces T1=5, T2=10, T3=15 with SS1=6, SS2=9, SS3=9 and (Greek letter E)X squared =94. What is SS total? What is SS between and what is SS within?
May 2, 2014

math
hi
April 9, 2014

science(check answers)
ok I think U got them all right why the Heack U ️forgot 8-15
March 5, 2014

Honors Physical Science
An object is moving at 25 m/s and has a kinetic energy of 12,500 J. If the acceleration due to gravity on Mercury is about 3.8 m/s2 , what would be the weight of this object on Mercury?
February 19, 2014

Sociology
What social policies to reduce crime would likely be recommended by a sociologist who favors Merton's Strain Theory? Why?
November 16, 2013

SimplifyingRadicals
√162+11√243-7√128+√192 a.)√2 +17√3 b.)-47√2+107√3
November 11, 2013

Further mathematics
An exponential sequence (GP)of positive terms and a linear sequence (AP)have the same first term.the sum of their first terms is 3,the sum of their second terms is 3 and the sum of their third terms is 6. Find the sum of their fifth terms
June 30, 2013

books
I'm sorry to ask again but the answer has to come from Chapter 18 of the book "In the Garden on Beasts" And the question is At this point in Hitler’s rise to power no military action was taken to halt his ascension. What would have been the most likely ...
April 30, 2013

books
In the book "In the Garden of Beasts", chapter 16 it asks What did Klemperer notice about Hitler’s use of language? What was the purpose of the Editorial Law?
April 30, 2013

books
In the book In the Garden of Beasts, Chapter 18, it asks, At this point in Hitler’s rise to power no military action was taken to halt his ascension. What would have been the most likely outcome of preemptive military action?
April 30, 2013

Calculus
A particle moves along the curve y = sqr(1+x^3). As it reaches the point (2,3), the y-coordinate is increasing at a rate of 4 cm/s. How fast is the x-coordinate of the point changing at that instant.
April 29, 2013

Calculus
On what intervals of t is the curve described by the given parametric equation concave up? Concave down? x=t^2; y=t^(3)+3t
April 16, 2013

Calculus
For the curve r = 2 sin 3(theta): Find the arc length of one petal
April 16, 2013

English
Mike, I don't think jumping right into it is a good idea. You want to lead them to it. What is the question starting the intro?
April 12, 2013

Honors Math
Thank you Mr. Bob Pursley!
April 12, 2013

Honors Math
Please help! Malia incorrectly graph the equation y=2/3x+12 with a slope of 3/2. What should malia's corrected graph look like? The answers can be: A. Vertical B. Horizontal C. Less Steep D. More Steep P.S. The / doesn't mean divide in this equation. It is refering to ...
April 12, 2013

social studies
In referrencing Lenin's "What is To Be Done" Lenin is here calling for unity among socialist thinkers, emphasizing that criticisms made by socialist thinkers against one another’s thoughts strengthen the enemy (bourgeois ideology”). Put in other words, ...
April 9, 2013

social studies
Referencing Vladimir Lenin, "What is To Be Done?" (1902) Why do you think it was left to the “bourgeois intelligentsia” to transform the quest for working class rights into a philosophy?
April 9, 2013

Biochemistry
b anyone, stuck :p
March 31, 2013

Math HELP!! :(
@bobpursley
March 18, 2013

Math HELP!! :(
I can't I won't let me
March 18, 2013

Math HELP!! :(
a contractor's designing one side of an office building 48 feet in length the windows are each 5 feet long and will be placed Six feet apart and 5 feet from the end of the building wall how many windows can a contractor design
March 18, 2013

math
the answer for the triangular prism with these dimensions 6.0cm 7.5cm 9.6cm what is the answer
February 12, 2013

Math
Position Term 1 10 2 14 4 22 8 38 n a) Create an expression that represents the term’s value in terms of the position.
January 16, 2013

AP Chemistry
The pH of a solution of Sr(OH)2 is 12.42. What is its pOH? What is its [H3O^+]? What is its (OH^-)? What is its [Sr(OH02]? Is the solution acidic or basic?
January 9, 2013

AP Chemistry
The pH of a solution of Sr(OH)2 is 12.42. What is its (OH^-)
January 9, 2013

child care
promote the benefits of change
January 7, 2013

mlit
a plane at a height of 5000m is travelling ata constant speed of 300m.s. A heat seeking missile is fired at the plane when it is 5000m due east of an airbase. if the missile's speed is 350m.s, will the missile hit the plane before it reaches 9000m due west?
January 5, 2013

Math
Thank you Ms. Sue! I appreciate it!
December 18, 2012

Math
Please help! It says- A machine takes 4.0 hours to make 8 parts. At that rate, how many parts can the machine make in 31.0 hours? Anybody want to explain it to me?
December 18, 2012

Honor'sMath/UsingSimilarFigures
I've got the area part but I typed exactly what was in the textbook.
December 16, 2012

Honor'sMath/UsingSimilarFigures
Help! I cannot figure out how to do this and my teacher does not explain things very well! The question is- An image is 16 in. You want to make a copy that is similar. Its longer side will be 38 in. The copy costs $.60 per square inch, Estimate the copy's total cost. *What...
December 16, 2012

Math
You divide 925 by 37 and you get an answer of A.25ft. Your welcome! :)
December 16, 2012

math
johanna has a cellphone plan that has a monthly charge plus a per text fee. In October , she sent 45 texts and her bill $37.25. In November, she sent 118 texts and her bill was $40.90 write the y-intercept in coordinate form.Explain what the y-intercept represents in the ...
November 24, 2012

maths
how fast does a child`s heart beat in a minute?
November 19, 2012

Math
i am a number between 50 and 60. one of my factors is 28. qhat number am I?
November 16, 2012

Math
HELP! I have a math question the says this: In track practice, Jesse ran a mile in 7 minutes. His mile time was 2 1/2 minutes faster than Michael's time. Write and solve an equation to calculate Michael's mile time. I can't figure out what to do and it's due ...
November 11, 2012

Math/Algebra
Thank you Ms. Sue!
November 11, 2012

Math/Algebra
I really need help! I have a paper due tomorrow and I can't find out this answer. Can you help me? The question says this: -2=n+5. Under it it says: (-2)-____=n+5-____. I know that n equals -7 but I can't find out the blanks. Please help!
November 11, 2012

College Physics
I figured it out! I wasn't putting the t at omega=0 in the first equation in properly before converting from radians to revolutions!
October 30, 2012

College Physics
At t=0 the current to a dc electric motor is reversed, resulting in an angular displacement of the motor shaft given by theta(t)= 258t - 20.4t^2 - 1.47t^3 How many revolutions does the motor shaft turn through between the time when the current is reversed and the instant when ...
October 30, 2012

calculus help!!!!
Find derivative of: g(theta) = cos^2(2theta-1)
October 8, 2012

Calculus: free body diagram--PLZ HELP!=)
Grain is being poured through a chute at a rate of 8 cubic feet per minute and forms a conical pile. The radius of the bottom of the pile is always half of the heightof the pile. How fast is the circumference of the base increasing when the pile is 10 feet high? ..I keep ...
October 8, 2012

CALCULUS
Find derivative of: g(theta) = cos^2(2theta-1)
October 8, 2012

calculus
find the derivative of y=2sqrt(x)-(1/x)
October 7, 2012

Calculus - free body diagram
A water tank has the shape of an inverted right circular cone whose base radius is equal to half its height. Water is being pumped in at 2 cubic meters per second. How fast is the water rising when the water is 3 meters deep?
October 7, 2012

CALCULUS help! =)
WOW!! You are such a lifesaver!!!!!!!!!=) ...and also very good at math !
October 7, 2012

chemistry
A chemist must dilute 55.6 ml of 1.48 M aqueous silver nitrate (AgNO3) solution until the concentration falls to 1.00M. He'll do this by adding distilled water to the solution until it reaches a certain final volume. Calculate this final volume, in milliliters. Round your ...
August 31, 2012

Algebra 1 (exponents)
Thank you
June 28, 2012

Algebra 1 (exponents)
(6p)^-2 how will I write this in positive answer? I got 1 ---p ^-2 136 Please help! thank you
June 28, 2012

chemistry
A 150-mL sample of a .600-mol/L calcium nitrate solution is mixed with a 1.00L of .500-mol/L NaOH(aq). Calculate the mass of precipitate produced in this reacton.
May 18, 2012

animals
What is the habitat and location for the Florida Bonneted bat*? Also, what is its kingdom, phylum, class, order, and sub order? *Also known as the Wagner's Mastiff bat or the Wagner's Bonneted bat
May 17, 2012

to Lizzy and ms.sue
no problemo
April 10, 2012

Math
The time it takes Javier to go to school and his walking rate are inversely proportional. If it takes him 12 mins walking at 3 mph how long does it take if he walks at 4 mph?
April 10, 2012

math
The answer to the second one is 25%
April 10, 2012

8th grade math
The amount of vitamin c in the breakfast cereal varies directly with the serving size. If 1 and 1/4 cups of cereal provides 10% of the recommended daily value of vitamin c, what percent of the recommended daily value of vitamin c is in two cups of cereal?
April 10, 2012

language arts
Use "but"
April 10, 2012

algebra
. A boy is sitting in his red wagon at the top of a hill, holding onto a tree to keep from rolling down the hill. The distance from the top of the hill to the bottom is 41 meters. He pushes off from the tree at a starting velocity of 2 m/s, and then gravity accelerates the ...
April 6, 2012

chemestry
Thank you =)
March 29, 2012

chemestry
Please answer the following THAT I CAN'T!!! Where is Plutonium found? How common is Plutonium in nature? What does Plutonium look in pure form? What does Plutonium's atomic nucleus look like? THANK YOU!!
March 29, 2012

physics
Is 524,3 a floating or fixed point? Is 524,30 a floating or fixed point?
February 5, 2012

geography
is there a bay or harbor that is in Chicago that goes into lake Michigan?
January 29, 2012

geography
which one is close to chicago?
January 29, 2012

geography
Which great lake is closest to Michigan?
January 29, 2012

algebra
what is 4x-15/2=1/2
January 29, 2012

chem
What is the name origin of plutonium? What is its crystal structure? What is the atomic number? Is it radio active or synthetic? What is its classification? What is its uses? Where is it obtained from?
January 9, 2012

math
In 1 through 6, find each sum. Simplify, if possible. Estimate for reasonableness. 1. 7 __2 3 + 8 __5 6 2. 4 __3 4 + 2 __2 5 3. 11 ___9 10 + 3 ___1 20 4. 7 __6 7 + 5 __2 7 5. 5 __8 9 + 3 __1 2 6. 21 ___ 11 12 + 17 __2 3 7. Number Sense Write two mixed numbers that have a sum ...
December 20, 2011

math HELP!!
i'm not understanding mixed numbers and improper fractions. (the part where you convert one into another) WHAT DO I DO?!?!
December 19, 2011

math
Test these conjectures. Give three examples. Explain if the conjecture is correct or incorrect. 1. If a number is divisible by 4, it is always an even number._________________________________ 2. All multiples of 5 have a 5 in the ones place.__________________________________ 3...
November 28, 2011

science
i dont understand #3, #4, #5, and #6
November 21, 2011

science
1. List 5 organs [heart,lungs,brain,kidneys, liver] you learned about and tell about what they do. 2.What 2 organs help filter the blood? 3.How do bones and muscles work together when you raise your arm? 4.Trace a drop of blood as it leaves the heart and circles back again. 5....
November 21, 2011

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