Saturday
July 26, 2014

Posts by DiANA


Total # Posts: 708

Math
thanks

Math
help please !!!!!!!!!

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 propo...

Math
help please !!!!!!!

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?

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?

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)

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 loc...

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)

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

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

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

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. ...

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

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

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?

math
No. Two rays can be parallel and so would never form an angle.

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

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 eq...

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

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 ...

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?

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

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?

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

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 ?

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 ?

Chemistry
Calculate the enthalpy of combustion for acetic acid using standard enthalpies of formation.

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

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?

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.)

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...

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.)

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 s...

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.

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

geometry
(x+20)(x+10)(y-40)

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

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

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?

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

math
joanne picked 15 more than twice as many apples as her sister. Her sister picked 35 apples.

Chemistry
It is C.

HEALTH
idkk i need help with this one too!

ap world history
I mean coke as in coca cola

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?)

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

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 ...

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

AP World History
Why were spirits an important staple in Colonial America?

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

Math or geometry
7c-4x+45

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, ...

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

history
Which is NOT true of the segregation laws passed after the Civil War?

history
Philadelphia, Pennsylvania was NOT _____.

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

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.

Government
Las Vegas uses a council-manager style government?

Government
Las Vegas uses a council-manager style government

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...

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?

math
9y squared + 48 - 36

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

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.

Math
Simplify (x^1y^1)^5

Math
Simplify z-4

Algebra
Thanks

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

Math
Classify the given number. - 4/9

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

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

Geometry
Can you please explain?

Math
28.26 yd squared

Math
178.3 ydd3

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...

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%.

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

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

English
I want to delete this :S

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 ...

algebra. help!!
how do u get 2t?

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

Algebra
Thank you Steve.

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

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.

Math
Thanks a bunch

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

math
If y=8(5)^x then write ln y as a linear function of x I dont know how to do this.??

algebra
because, x2 - x1 will always equal zero and you cant divide a number by 0

math
about 2826....

Math
what do you do when you have log on the side with y. for example logy= .120387x + .4771 How do you solve for y?

algebra
Find all integers b so that the trinomial 3x^2 +bx + 2 can be factored.

math
i had cards to write, i wrote 1 third of cards on monday, 2 eighths on tuesday, 1 sixth on wednesday and wrote the remaining 27 cards on thursday. how many cards did i write?

math
what would be the numerator of a fraction that is equivalent to 5/8 and has a denominator of 48?

chemistry
Calculate the number of moles of each ion in 10.5 mL of 0.205 M cadmium phosphate solution.

Chemistry
A sample of Manganese (II) Chloride has a mass of 19.8 grams before heating, and 12.6 grams after heating until all the water is driven out. Based on this information, how many water molecules were attached to each molecule of Manganese (II) Chloride?

Chemistry
How many moles of atoms are in one mole of AlPO4?

physics
A block of ice at 0 degree celsius is placed in a room whose temperature is also 0 degree Celsius explain what will happen?

Cosine question
cos theta= .5 2cos theta= .5 how do you do this?

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