Monday
December 22, 2014

Posts by DiANA


Total # Posts: 719

Math
Supposed you model numbers with three digits, but you do not use any tens blocks. What digit must be in the standard form of every number you model? Give examples and explain
August 22, 2013

Sentences and Paragraphs
During the course of the year off I had re-evaluated what I wanted from my career. I knew that in a new job I still wanted to work with people and I needed to do something that was educational.
August 18, 2013

Sentences and Paragraphs
You’ve applied for a specific job in your field of study. The Human Resources Department arranges an interview and tells you to bring with you a polished piece of writing for them to evaluate your writing skills. The paragraph must describe one particular experience you&#...
August 18, 2013

statistics
how to caculate using a ruler to measure the thickness of a 25 pages in a textbook
July 2, 2013

statistics
how to caculate using a ruler to measure the thickness of a 25 pages in a textbook
July 2, 2013

Chemistry
ALL ice melts at 0*C, but it requires MORE HEAT to melt 10g of ice than it would for 20g of ice. Why? I thought it was the opposite.
June 17, 2013

Chemistry
2C6H6+X -> 12CO2+6H20 Find x Is x 30O?
June 15, 2013

math
When is this true X^3>3 •always •never •always true when x>1 •always true when x<0
June 4, 2013

phoenix
Each sample has n= 5 scores with s2 =38 for the first sample and s2 = 42 for the second. (Note: Because the two samples are the same size, the pooled variance is equal to the average of the two sample variances.)calculate how much difference should be expected, on average, ...
May 12, 2013

math
a bag contains 3 blue marbles , and 9 green marbles , and 11 yellow marbles . Twice you draw a marble and replace it . Find P(blue then green) a) 27/529 b) 27/23 c) 15/529 d) 12/23
May 9, 2013

math
Which is the best display for the set of the number of tornadoes in the United States each year , If you want to be able to identify the mode? a) histogram with intervals of b) frequency table with intervals of 3 c) line pot d) line graph
May 6, 2013

Math
thanks
May 6, 2013

Math
help please !!!!!!!!!
May 6, 2013

Math
A researcher tagged 40 giant turtles in 2008. In 2009 , she returned and captured 50 turtles , 16 of which were tagged. In 2010 , she returned again and captured 30 turtles , 8 of which were tagged. a) Use a proportion to estimate the turtle population for 2009. b) Use a ...
May 6, 2013

Math
help please !!!!!!!
May 6, 2013

Algebra
a cyclist and a horse rider are going the same speed. the rider stops after 11.1 miles. the cyclist goes for another hour and 18.5 miles. how fast is each one going?
April 17, 2013

Math
pedro and maria spend the same amount of time driving to school. pedr average is 50 mph and maria's average is 30 mph. pedro drives 10 miles farther than maria, how long does each drive to school?
April 17, 2013

PHYSICS - Waves
Can someone tell me how to get the answer to this question? Just a formula would be great. It's on my physics study guide for my unit test. If 3 sound waves pass a microphone in 4.0 s while traveling 5.0 m/s, what is the wavelength of the waves? (6.67 m)
April 9, 2013

PHYSICS - Waves
Can someone tell me how to get the answer to this question? Just a formula would be great. It's on my physics study guide for my unit test. It takes 2.30 s for an echo to come back from a sound wave sent to the bottom of a 25 degree C lake. How deep is the lake at this ...
April 9, 2013

PHYSICS - Waves
Can someone tell me how to get the answer to this question? Just a formula would be great. It's on my physics study guide for my unit test. Sound waves with a wavelength of 2.5 m are traveling 7.5 m/s. How many waves will pass a microphone in 10.0 s? (Answer 30 waves)
April 9, 2013

science
if a ball that has a density of 1.17 g cm3 placed in the beaker, where will the ball come to rest
April 2, 2013

kernersville
A horse a dog a chicken anved a duck lived on a farm.How many legs were on the farm.
March 21, 2013

Matt
You randomly draw a marble from a bag of 320 marbles. You record its color and replace it. Use the results shown in the table to predict the number of marbles in the bag that are the given color. Blue:10 Green:8 Purple:2
February 28, 2013

Math
The javelin event is held on the field inside the track. This field is a rectangle measuring 100 meters by 64 meters, with a semicircle at each end. Early modern Olympic javelins were designed so well that javelin throwers could throw them beyond the field and onto the track. ...
February 18, 2013

Chemistry
58% Ca3 (PO4) 2 how many phosphorus are in 10 kg bones?
February 17, 2013

Chemistry
58% Ca3 (PO4) 2 how many phosphorus are in 10 kg bones? Ca3(po4)2+SiO2+C=CaSiO3+P4
February 17, 2013

microeconomics
Answer for 2 is 50
February 13, 2013

chemistry
What volume of a 6.0 M NaOH solution would you need to prepare 250.0 milliliters of a 3.0 M NaOH solution?
February 13, 2013

math
No. Two rays can be parallel and so would never form an angle.
February 5, 2013

math
Solve the following systems of equations. 3x + 4y = 4 2x + y = 6
February 5, 2013

math
The sunshine bakery sells pies at a fixed price o p dollars per pie. The total number of pies demanded daily, D, is related to the price, p, in dollars by the equation: D = -10p + 200 On the other hand, the daily supply of pies, S, is related to the price, p, per pie by the ...
February 5, 2013

Criminal Justice
i just need help trying to find the answers for it. Ive tried looking and kind find it. :/
February 1, 2013

Criminal Justice
A 1-page outline on the best way to format and present the federal criminal pretrial process, which includes jury selection, evidence and jury instructions. Please provide examples in your outline of your recommended format for presenting the process. A 1-page draft of how to ...
February 1, 2013

Accounting/Office admin
It is the beginning of a new year and you just received the landlord’s building expense pass through reconciliation for the previous year. Assuming the math is correct, what are the two most important things to look for?
November 24, 2012

AP World History
What were some complexities of trade in Post Classical world and how it is similar and or different to today?
November 24, 2012

AP World History
No, this is my question. What were some complexities of trade in Post Classical world and how it is similar and or different to today?
November 23, 2012

AP World History
Describe the complexities of trade in Post-Classical world and compare to today.
November 23, 2012

Chemestry
If 0.25 mol of methane gas (CH4) is introduced into evacuated 2.00 L container at 35 Degrees Celcius , what is the pressure in the container ?
November 17, 2012

Chemestry
If 0.25 mol of methane gas (CH4) is introduced into evacuated 2.00 L container at 35 Degrees Celcius , what is the pressure in the container ?
November 17, 2012

Chemistry
Calculate the enthalpy of combustion for acetic acid using standard enthalpies of formation.
November 12, 2012

Physics
Hey this is what I did: T=Ia a= T/I then divide a/precessing velocity and that is the answer
November 9, 2012

psych
an IQ test is given on a tuesday, when given the test again on thurs the child scores differently, this is an issue of what? function, reliablity, observation or reflection?
November 3, 2012

Math
Two cards are drawn in succession without replacement from a standard deck of 52 cards. What is the probability that the first card is a face card (jack, queen, or king) given that the second card is an ace? (Round your answer to three decimal places.)
October 17, 2012

maath
The accompanying tree diagram represents a two-stage experiment. (Let x = 0.45, y = 0.55, r = 0.65, s = 0.35, t = 0.4, and w = 0.6.) Use the diagram to find the following probabilities. (Round your answers to three decimal places.) (a) Find P(A) · P(D | A). (b) Find P(B...
October 17, 2012

Math
Two cards are drawn in succession without replacement from a standard deck of 52 cards. What is the probability that the first card is a spade given that the second card is a club? (Round your answer to three decimal places.)
October 17, 2012

statistics
A researcher wishes to estimate with 95% confidence the proportion of adults who have high speed internet access. Her estimate must be accurate within 4% of the true proportion. 1. Find the minimum sample size needed using a prior study that found that 48% of the respondents ...
October 14, 2012

chemistry
Aluminum metal is exposed to atmospheric oxygen, it is oxidized to form aluminum oxide. How much heat is released by the complete oxidation of 24.2 grams of aluminium at 25°C and 1atm.
October 13, 2012

7th grade math
How do you arrange the numbers 2 4 5 and 6 ans insert the symbols "-" and "x" in a way that u follow PEMDAS/ order of operations to get the answer 8
September 20, 2012

geometry
(x+20)(x+10)(y-40)
September 16, 2012

geometry
find the value of each variable (6y-16) (4y+6)
September 16, 2012

geometry
whats the value of each variable (7x-27)(4x+12)
September 16, 2012

AP World History
There is a word that my worksheet is saying to define, the word is Chavin. I looked through my textbook, but I can't find the definition. What I am learning now is agricultural development and the earliest civilizations. Can you please give me a definition for Chavin?
August 29, 2012

cars
A ruling of the FTC requires that every used car must display a(n) ________ spelling out the warranty terms under which the vehicle is offered for sale. A. vehicle identification chart B. agreement C. option chart D. buyer's guide I have no idea what it is. HELP
August 23, 2012

math
joanne picked 15 more than twice as many apples as her sister. Her sister picked 35 apples.
August 18, 2012

Chemistry
It is C.
August 18, 2012

HEALTH
idkk i need help with this one too!
August 13, 2012

ap world history
I mean coke as in coca cola
August 4, 2012

ap world history
how did coke become basically seen as an american value? how did this help and hurt coke (and in some ways, america itself?)
August 4, 2012

ap world history
how was tea connected to the opium trade and the opium war of 1839-1842?
August 3, 2012

AP World History
Hi its Diana with the same question: How did coffee play a pivotal role in the French Revolution? (lots of details and go into the Enlightenment) But, I looked at the articles you sent me and I still dont understand how coffee influenced the Enlightenment. I am having so much ...
August 3, 2012

AP World History
How did coffee play a pivotal role in the French Revolution? (lots of details and go into the Enlightenment)
August 3, 2012

AP World History
Why were spirits an important staple in Colonial America?
August 2, 2012

chemistry
what the rules to be followed in performing he 4 fundamental operaions using scientific notation?
June 15, 2012

Math or geometry
7c-4x+45
June 8, 2012

algebra2
An ice-cream parlor sells sundaes with 3 different types of ice-cream and 4 different toppings. They have 8 flavors of ice-cream and 10 toppings for their customers to chose from. What is the probability that a customer orders a sundae including the toppings of whipped cream, ...
May 26, 2012

isep - fisica
b) quantidade de acelaracao no ponto b. o ponto b é um cursor que esta preso no cimo de uma barra que esta dentro de outra barra . como e que calculo a quantidade de acelaracao neste caso uma vez que ha acelaracao de coriolis
May 22, 2012

history
Which is NOT true of the segregation laws passed after the Civil War?
May 22, 2012

history
Philadelphia, Pennsylvania was NOT _____.
May 22, 2012

Polynomials. :) :)
f(x)=2x^4+4x^3-7x^2-x+7 has no rational roots. Approximate the irrational solutions correct to 3 decimals. If there is more than 1 real solution, enter them from smallest to largest, separated by a comma
May 17, 2012

Polynomials. :) :)
2x^4+4x^3-7x^2-x+7 Approximate the irrational solutions correct to 3 decimals. If there is more than 1 real solution, enter them from smallest to largest, separated by a comma.
May 17, 2012

Government
Las Vegas uses a council-manager style government?
May 14, 2012

Government
Las Vegas uses a council-manager style government
May 10, 2012

accounting
Question: Because Aqua Elite, Inc. is a new startup business, the beginning balances in all the general ledger accounts are zero to start. n The length of the accounting periods are three months using a fiscal calendar year. (A fiscal calendar is on a yearly basis other than a...
April 16, 2012

Math
Tasha saw a sailboat while walking along the pier. She thinks it is the tallest sailboat she has ever seen. The shadow cast by the boat was 14 ft long, while Tasha's shadow was only 2 ft long. If Tasha is 5.5 ft tall, how tall was the sailboat, in feet?
April 10, 2012

math
9y squared + 48 - 36
April 1, 2012

Math
If events A and B are independent and P(A) and P(B) are nonzero, explain why P(A U B) does not equal P(A)+ P(B) im not sure how to answer this
March 25, 2012

Trigonometry
Your altitude is 40,000 feet and you detect a target at a depression angle of 6 degrees and a range of 20 miles. what is the altitude of the target? Draw a picture.
March 11, 2012

Math
Simplify (x^1y^1)^5
March 8, 2012

Math
Simplify z-4
March 8, 2012

Algebra
Thanks
March 8, 2012

Algebra
combine like terms (simplify) 11/14a-1/15b+1/14a-11/15b
March 8, 2012

Math
Classify the given number. - 4/9
March 7, 2012

Math
find the value of expression. 3*45/9-2(10-)-4/2
March 7, 2012

Geometry
find the perimeter of the trapezoid. L1=9.65yd, L2=9.25yd, L3=10.12yd, L4=6.20yd
March 7, 2012

Geometry
Can you please explain?
March 7, 2012

Math
28.26 yd squared
March 7, 2012

Math
178.3 ydd3
March 7, 2012

Mangerial Economics
Where Q is the number of cans of tennis balls sold quarterly, P is the wholesale price Wilpen charges for a can of tennis balls, M is the consumers average household income, and Pr is the average price of tennis rackets. The regression results are as follows Dependant Variable...
March 2, 2012

Business English
Which of the following sentences advocates an idea in a positive way? A. I can't see anyone buying the product at that price. B. The unit is way overpriced. C. Customers can get a better deal anywhere else. D. We can corner the market if we discount the selling price just 5%.
March 2, 2012

math
also a problem that i cant figure out is how to do inverses of logs f(x)= 2log(base2)X
March 2, 2012

Math
3ln(b) + 2ln(c) write as a single log. I have tried this problem so many ways. i dont know what to do with the 3 and the 2. do you multiply or use them as exponents or what
March 2, 2012

English
I want to delete this :S
March 1, 2012

English
What do you think about my essay? "A little bit longer and I will be fine" “..And you do not know what you got until it is gone, and you do not know what i s like to feel so low...” A quote written by Nick Jonas to express how he felt after being diagnosed ...
March 1, 2012

algebra. help!!
how do u get 2t?
February 27, 2012

Algebra
x^2–4 ÷ x^2+5x+6 ____________ ______________ x^2 + 3x – 10 x^2 + 8x + 15
February 25, 2012

Algebra
Thank you Steve.
February 19, 2012

Algebra
Factor 12x^2(x-1)-4x(x-1)-5(x-1) and show work.
February 19, 2012

math
to solve this problem, you would simply add the exponent of 13 from both tens since you are multiplying the exponents together. the answer would be 10 to the 26th power.
February 17, 2012

Math
Thanks a bunch
February 17, 2012

Math
Find an equation of the line containing the points (-6,19) and (-15,28)
February 17, 2012

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