Monday
July 28, 2014

Posts by courtney


Total # Posts: 659

math
i need help congruence chapter all about it

math b1
is that a negative 8

Science
What do I put in my data table for a salt crystal experiment. One grown in bowl on kitchen counter and one in the refrigerator

Physics
A child sits on one side of a teeter totter of length 7.60 m, a distance of 49.7 cm away from the end of the beam. The child has a mass of 21.6 kg. Her mother has a mass of 43.6 kg. How far away from her end does she have to sit in order for the teeter tooter to be exactly bal...

physics
Take the density of the crown to be . What is the ratio of the crown's apparent weight (in water) to its actual weight ?

AP Biology
When predicting the change of cellular respiration in an ectotherm, such as a snake,when subjected to a temperature of 5 C, would I be correct in saying that the rate of cellular respiration would increase?

College Algebra
An executive flew in the corporate jet to a meeting in a city 1500 kilometers away. After traveling the same amount of time on the return flight, the pilot mentioned that they still had 300 kilometers to go. The air speed of the plane was 600 kilometers per hour. How fast was ...

College Algebra
A truck driver traveled at an average speed of 55 miles per hour on a 200 mile trip to pick up a load of freight. On the return trip(with the truck fully loaded), the average speed was 40miles per hour. What was the average speed for the round trip?

Precalculus
I'm working on a project and I need some help with figuring out the equations to write. Here is all the information about the project: You and your friends decide to produce your own CD. After searching on the Internet, you find a low-cost CD duplication outfit that will l...

AP Statistics
How would I go about solving these problems? In Exercise 9 we suggested the model N(1152,84) for weights in pounds of yearling Angus steers. What weight would you consider to be unusually low for such an animal? Explain. If you are given the model N(1152,84),what are the cutof...

College Algebra
Find two consecutive numbers such that the difference of their reciprocals is 1/4 the reciprocal of the small number.

Physics
You place a box weighing 223:2 N on an in- clined plane that makes a 38:4± angle with the horizontal. Compute the component of the gravita- tional force acting down the inclined plane. Answer in units of N.

Statistics
I need help figuring out these two problems. I think I have the right idea about solving them but I'm not exactly sure. 8. Two companies market new batteries targeted at owners of personal music players. DuraTunes claimes a mean battery life of 11 hours, while RockReady ad...

AP Statistics
Suppose a Normal model describes the fuel efficiency of cars currently registered on your state. The mean is 24 mpg, with a standard deviation of 6 mpg. -Describe the fuel efficiency of the worst 20% of all cars. I know that you convert 20% into decimal form to get .2 and put ...

history
How does the nationalism that developed over the Berlin Wall in Germany differ from the situation in Northern Ireland with the Catholics and Protestants?

math
Darcy must work 35 hours (472.5 divided by 13.5)

math
how many hours must darcey work at $13.50per hour to earn $472.50=

math
neither the answer is -0.5 because -3x means -3 times x/ -3 times -0.5 equals 1.5 which is 3/2 as a fraction

Math
How are 2 hours and the distance traveled in 2 hours represented on the table? On the graph?

College Algebra
What is the leading coefficient and degree in these two problems? 1). 4x^3y - 3xy^2 + x^2y^3 2). -x^5y + 2x^2y^2 + xy^4

Pre-Calculus
How do I find f(g(x)) when there is a radical?

College Algebra
Simplify 5^(-1/2) * 5x^(5/2) / (5x)^(3/2)

Statistics
I need help getting started on this question: Is our system of justice colorblind in the administration of the death penalty? Here is the data given to us (Numbers like 422, 99, etc. represent the number of cases): DEATH Black White SENTENCES Victim Victim Total Black Defendan...

Math-Algebra
I need help factoring these two problems: 1. 8j^3k - 4jk^3 - 7 2. 2ak - 6a + k - 3

algebra1
how do you make a histogram

english
write each pronoun and identify its antecedent if it has one. what is the best way to get good seats for a concert? Check this dictionary definition to find the pronoun. http://dictionary.reference.com/browse/what

Adv. Alg. w/Trig.
I need help writing equations for these two word problems: 1. On June 30th, Mr. Hester will be given $1,000,000 and in July, Mr. hester will be paid $100,000 per day. 2. On June 30th, we will set up an account for Mr. Hester starting with $0.05. Every day in July, the organiza...

Physics
I have two questions: How many hours of light and darkness are there in June at regions south of the Antartic Circle (dotted line in Southern Hemisphere)? Six months later, when the earth is at the December position, is the situation in the Antartic the same or is it the rever...

math [radicals]
how do you multiply a radical with a regular number ? for example: 4radical2 ( 2+ 2radical3) first term: 4sqrt2 * 2= 8sqrt2 second term 2sqrt2 * 2 sqrt3= 2*2 * sqrt (2*3) = 4 sqrt6 first term: 4sqrt2 * 2= 8sqrt2 second term 2sqrt2 * 2 sqrt3= 2*2 * sqrt (2*3) = 4 sqrt6

science
if a egyptian mummy has 61% carbon-14 how long ago was it buried? Take a 100 g initial sample. Now there are 61 g C-14. Use ln(No/N) = kt where No = 100 N = 61 You will need k and you may obtain that from k = 0.693/t1/2. Look up t1/2 and substitute in that equation to find k, ...

math
30.9L = ? kL 45meters= .045km

Physics
A bat flying in a cave emits a sound and receives its echo 1 s later. How far away is the cave wall? is it 340.29 m? the speed of sound is 340.29 m/s i believe v = d/t d = (t)(v) d = (340.29)(1) Nope but thanks for trying :)

physics
(a) What is the wavelength of a 450 Hz tone in air?

Physics
The wavelength in air of a sound is 5 m. (a) What is the frequency of the sound? Sound can have any frequency. It is the SPEED of sound that remains constant, independent of frequency, at a given temperature.

Science (physics)
You watch a distant woman driving nails into her front porch at a regular rate of 1 stroke per second. You hear the sound of the blows exactly synchronized with the blows you see. And then you hear two more blows after you see her stop hammering. How far away is she? It takes ...

math number story
Please tell me what a number story is for the number sentence below. 4*8=32

Transition Math
Can you help discribe how to do this or what it will look like? If 25 boys at Central Middle School play basketball and 20 play both soccer and basketball, draw a Venn diagram to represent the soccor and basketball players first of all, you would draw a venn diagram, which wou...

Project Management
Offices: Boston, Chicago, Memphis, Charlotte, Atlanta, and Orlando Location of Event: Miami Travel Days: To Miami on Sunday, Returning from Miami on Saturday. Travel Means: Air or Private Auto, whichever is convenient and reasonable. Autos must be shared. Lodging: All attendee...

Health Project Ideas
How about doing it on sunblock or oats and grains. lol. good luck.

genetics
How do you determine genotypes? The only way to determine genotypes is to know the parentage.

Science
Can you please help me solve this lab: Design an item no bigger than a 35 mm film conatiner that will float at the 400 ml mark in a 1000 mL graduated cyllinder with 800 mL of water in it. The item can only be made from "trash", recycled items and common household goo...

geography
what volcano dominates the sothern portion of the island of Hawaii? Mauna Loa is probably the volcano you mean.

social studies
Name the 5 regions that the U.S. is divided into. There are many ways to do this dividing. One would be: far west (including rocky mt. states) midwest (including Texas) south midatlantic New England Another, more based upon topography, would be: Pacific coastal region Atlantic...

Science
Can you please help me solve this lab: Design an item no bigger than a 35 mm film conatiner that will float at the 400 ml mark in a 1000 mL graduated cyllinder with 800 mL of water in it. The item can only be made from "trash", recycled items and common household goo...

spanish
what does mas adelante mean in english? from now on, forward. thanks Thank you for using the Jiskha Homework Help Forum. When you ask for a translation, you should always give the CONTEXT or exactly how it is used. Here are the possibilities: farther on; later (adverb) go ahea...

biology
How are complex carbs broken apart? Hint: Look up the words "hydrolysis" and "glycosidic linkage."

Math
How do you convert fractions to a percentage? give me an example and ill explain what is the percentage for 7/4? divide 7 by 4. 1.75 multiply by 100 175 7 is 175 percent of 4. so, 175% = 7/4?

math anyone? : ]
i need some help figuring out this question 2 3/5c - 1/2 > 3/10 combine like terms and divide by 2

Math #2
On average, 1 out of 15 people who visit Margo’s florist shop place an order for roses. Last year, there were no more than 200 orders for roses. How many people visited Margo’s Florist shop last year? 163 visted the shop

math (transition)
i need some help figuring out this question 2 3/5c - 1/2 > 3/10

math (transition)
i need some help in math here is the problem if anyone can help me please reply When the fuel tanks of an airline are 3/8 full, they contain at least 6300 gallons. How much fuel can the airliner hold when the tanks are full? Since 3/8 equals 6300, you need to see how many gall...

math (transition)
i need some help figuring out this question 2 3/5c - 1/2 > 3/10

Math (transition)
i need some help figuring out this question 2 3/5c - 1/2 > 3/10 3/5x2 - 1/2 > 3/10 x=2

Math (Transition)
I need some help in math here is the problem if anyone can help me please reply When the fuel tanks of an airline are 3/8 full, they contain at least 6300 gallons. How much fuel can the airliner hold when the tanks are full? Since 3/8 equals 6300, you need to see how many gall...

math
I need help solving these equations -5s+3s-2s=48 6m=5m-2+m 5d=-2d-24 you need help or you want someone to solve them for you? ;) please solve : ) thanks okay well pretty much solve for s in the first question and m for the second question and d in the third and when you think ...

Math
I need help with figuring out the equation 5(2x+3)-8x=7 5(2x+3)-8x=7 10x+15-8x=7 2x+15=7 2x=7-15 2x=-8 /2 /2 x= -4 uh -8/2=-16 yes?

personal finance
i need help with my personal finance home work Post Your Question so someone can answer it. Sue and Tom Wright are assistant professors at the local university. They each take home about $40,000 per year after taxes. Sue is 37 years of age, and Tom is 35. Their two children, M...

Algerbra 1
1/3x + 5/6 = 2/9x - 1/3 How do I solve this to get the answer? For basic algebra you need to understand that we can add (or subtract) the same quantity from both sides without affecting the = sign. We can also multiply and divide (except by 0) both sides without affecting the ...

History
1d.) Congress requires a 3/4 majority for amending the constitution.

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