Saturday
July 26, 2014

Posts by karen


Total # Posts: 790

Trigonometry
A satellite orbiting the earth in a circular path stays at a constant altitude of 100 kilometers throughout its orbit. Given that the radius of the earth is 6370 kilometers, find the distance that the satellite travels in completing 70% of one complete orbit.

chemisty
What is the approximate mass of 2L of C4H10 gas at STP?

Physics
An artillery shell is fired at an angle of 75.7 above the horizontal ground with an initial speed of 1720 m/s. The acceleration of gravity is 9.8 m/s^2. Find the total time of flight of the shell,neglecting air resistance. Answer in units of min.

math
anna bought 3 types of fruit for a fruit salad. She paid three times as much for buleberries as for pears and $2.50 less for strawberries than for blueberries. A) define a variable and write algebraic expressions to represent the amount she spent on each type of fruit. B) if t...

math
thank you very much - Steve

math
A cone has a radius of 6 inches and a height of 9 inches a) calculate the volume of the cone. use pi. as my answer for part a i got 339.92 cubic inches,,,,,,, Is my answer correct ?? I need help doing part b and c. b) calculate a possible radius and height of a cylinder that h...

Statistics
For this project, you will write a paper that involves designing, conducting, and analyzing results from your own experiment to test the sensory discrimination of one of your friends. Choose a friend who claims to be able to tell the difference between two very similar objects...

algebra11
(K+1)x+2y=6; M=k-2

Physics
A helicopter drops a box from 120m in the air. a. Determine the time the box is in the air. b. Determine the velocity the box would have right before it hits the ground. c. Before the box falls the helicopter had a horizontal velocity of 55/s. Determine the distance the box wi...

Math
Jayson has 789 cubes hammy had 890 how much in all

quantitative methods
21. The Seneca Children’s Fund (SFC) is a local charity that runs a summer camp for disadvantaged children. The fund’s board of directors has been working very hard over recent years to decrease the amount of overhead expenses; a major factor is how charities are rat...

biology
explain how single celled organisms that live in freshwater adapted to living in a hypotonic environment

Physics
A helicopter drops a box from 120m in the air. a. Determine the time the box is in the air. b. determine the velocity the box would have right before it hits the ground c. Before the helicopter had a horizontal velocity of 55/s. Determine the distance the box will travel in th...

7th grade math
how do I write an equation for "fifteen decreased by twice n equals 13"

math
how do I write the equation for fifteen decreased by twice n equals 13?

geography
john who lives at 35 degrees north and 120 degrees west regularly calls Geroge his business partnet at 2pm (John's local time) every day during July last year. George regularly recevied the calls at 10 pm ( his local time). throughout the month, George reported that the ma...

math grade 12
A open-topped box can be created by cutting congruent squares from each of the four corners of a piece of cardboard that has dimensions of 20cm by 30cm and folding up the sides. Derermine the dimensions of the square that must be cut to create a box with a volume of 100cm3. Wi...

physics
A human hair is approximately 55 µm in diameter. Express this diameter in meters. Answer in units of m

Ethics and Cultural
What are some of the ways people identify groups?

government
ok

government
How has the presidency role changed since it's inception to today? How has the public's perception of the presidency changed?

physics
a scared kangaroo clears a fence that is 2.44 meters tall. what is the vertical component of the kangaroos velocity at take off (vfi) ? if the horizontal component of the kangaroos velocity is 4.80m/s at what angle did the kangaroo take off the ground? (hint: at its maximum he...

english 3 A
Which one of the following is not an example of Puritan literature? A. Magnalia Christi Americana B. The Sot-Weed Factor C. The Bay Psalm Book D. The Day of Doom

Algebra 1
oops -for my last question i meant rectangle

Algebra 1
Perimiter of Rectangle is 54cm, the width is 1/2(length)... what is the width & Length of the triangle?

Statistics (Math)
A government report looked at the amount borrowed for college by students who graduated in 2000 and had taken out student loans. The mean amount was = $ 17 , 776 and the standard deviation was s = $12,034. The quartiles were Q 1 = $9900, M = $15,532, and Q 3 = $22,500. The rig...

Trigonometry
Find the domain of each function. And show your steps please. f(x)=x/x^2+1 f(x)=2x^2/x-3 f(x)=Square root of 5-x f(x)=x^3/x^2-16

Chemistry
HC8H4O4K + NaOH = H2O + H4C8O4KNa I'm given the volume of NaOH in mL (ex: 9.11 mL), and I have to convert it to moles. How can I do that conversion? Please help by explaining if you can, I've had trouble with this problem for the whole week..

math
5/9x+2-1/6x=11/18x+1/3

Math
A 3-ounce serving of tuna fish provides 24 grams of protein. How many grams of protein are in a 10-ounce serving of tuna fish?

Coporate Finance
Two-State Option Pricing Model T-bills currently yield 5.5 percent. Stock in Nina manufacturing is currently selling for $70 per share. There is no possibility that the stock will be worth less than $65 per share in one year. a. What is the value of a call option with a $60 ex...

Coporate Finance
Exotic Cuisines Employee Stock Options As a new graduate, you've taken a management position with Exotic Cuisines, Inc., a restaurant chain that just went public last year. The company's restaurants specialize in exotic main dishes, using ingredients such as alligator,...

theory to practic
hopping and skipping

Ap Chemistry
An ore contains Fe3O4 and no other iron. The iron in a 60.67 gram sample of the ore is all converted by a series of chemical reactions to Fe2O3. The mass of Fe2O3 is measured to be 36.1 grams. What was the percent Fe3O4 in the sample of ore? Answer in units of %

lang arts
I got 1. D 2. A 3. c 4. B 5. A please help me do I have them right?

geometric sequences
I can not find the missing term 81 54 _ _ _ not seeing the missing terms.

pharmacy tech.
a pharmacist has a 40% acid solution and has a 25% acid solution. How many liters must be mixed to form 54 liters of a 27 % acid solution?

Math
a pharmacist has a 40% acid solution and has a 25% acid solution. How many liters must be mixed to form 54 liters of a 27 % acid solution?

Chemistry
How many grams of SO3 are needed to make 250 ml of 0.750 molar solution?

chem
How many grams of SO2 are needed to make 250 ml of 0.750 molar solution?

Physics
A car traveling 80km/h is 120m behind a truck traveling 66km/h. How long will it take the car to reach the truck?

Physics
A car traveling 80 is 120 behind a truck traveling 66 . How long will it take the car to reach the truck?

English
What is the plural of scientist?

Math
How do u solve 15/y=3. I know the answer is 5 but how do u get there by showing your work?

art
what visual elements are used in Rembrandt's painting "the storm of the sea on galilee?

Corporate Finance
Finding the Capital Structure Fama's Llamas has a weighted average cost of capital of 9.8 percent. The company's cost of equity is 15 percent, and its cost of debt is 7.5 percent. Tha tax rate is 35 percent. What is Fama's debt-equity ratio?

Math
What do the brackets mean in this problem? a[(b-c)/d]-f Am I suppose to times the answer of everything in the parenthesis by a?

Algebra 1
never mind -worked it out!!

math
thank you for your help! can you check if it's correct? 1.) 1/9 2.) 4/2= 1/5

math
please help! 1.) A random digit from 1 to 9 (inclusive) is chosen, with all digits being equally likely. The probability that when it's squared it will end with the digit 1. 2.) A random number between 1 and 20 (inclusive) is chosen. The probability that its square root wi...

probability
please help! 1.) A random digit from 1 to 9 (inclusive) is chosen, with all digits being equally likely. The probability that when it's squared it will end with the digit 1. 2.) A random number between 1 and 20 (inclusive) is chosen. The probability that its square root wi...

algebra
thank you so much!

algebra
please help! The following equation can be used to predict the average height of boys anywhere between birth and 15 years old: y = 2.79x +25.64 where x is the age (in years) and y is the height (in inches). a. What does the slope represent in this problem? Interpret it in cont...

math
how do i change 0.26(2/3) to a fraction

wrong subject (algebra)
not statistics..

statistics (math)
The following equation can be used to predict the average height of boys anywhere between birth and 15 years old: y = 2.79x +25.64 where x is the age (in years) and y is the height (in inches). a. What does the slope represent in this problem? Interpret it in context. b. What ...

math
When using a 1% cream and a 6% cream to produce a 4% cream, how many parts of each initial ingredient will be needed?

human resources
1. An example of internally aligning HR practices is: a. implementing an employee dress code that increases customer satisfaction. b. creating a recruitment plan that targets the predominate groups in the organizations labor market. c. implementing a training program which sup...

geometry
Quadrilateral ABCD is similar to quadrilateral WXYZ. Side BC is 8.6 units in length, side AD is 23.1 units, and side WZ measures 15.8 units. What is the measure of side XY?

geometry
In triangle ABC, DE is parallel to AC. Side AD measures 5.3 units, side DB measures 8.0 units, and DE measures 4.8 units. What is the measure of AC?

functions
F(x) x^4-11x^3+34x^2-6x-52 Write f(x)as the prouduct of two linear binomials and a quadratic trinomial

Ms. Sue help!!!
could you tell me information of Heron's Formula?

American Government
Congress' inability to consistently provide leadership on broad national issues is due to: A. the lack of talented leadership in Congress. B. constitutional restrictions on Congress' lawmaking powers. C. the constant threat of a presidential veto. D. the fragmented nat...

Accounting
Susan Kline works for Trend Press, a fairly large book publishing firm. Her best friend and rival, Lisa, works for Silver Books, a smaller publisher. Both companies issue $100,000 in bonds on July 1. Trend's bonds were issued at a discount, while Silver's were issued a...

math
the probability of an event is 7/12. what are the odds against this event occurring?

chemistry
a balloon is filled to a volume of 7.00 x 10 to the second mL at a temperature of 20.0 degrees celcius. the balloon is then cooled at a constant pressure to a temperature of 100 k. what is the final volume of the balloon?

Math
3/n + 3/10 =

algebra
a tree 5 ft tall growns an average of 8 in each year, write an ewquation to model the trees height h inches after y years

English
Where do commas belong in the following sentences? With Barton's help readers the American Red Cross Society was formed in 1881. Yes she treated wounded German and Allied soldiers alike.

dressmakeing exam 04202100
the most appropriate fabric for a pregnant women's only coat would be (a) black and ehite plaid (b) solid navy blue (c red and gray stripes (d) multicolored floral, when a dainty slip has along the top edge, the shoulder straps should be attached by (a) machine stitching a...

Physics
A piece of glass is immersed in water . If a light ray enters the glass from the water with an angle of incidence greater than zero, in which direction is the ray bent?

english
I need a title for an essay I am writing on Oliver sacks. Any suggestions?

chemistry
everything

chemistry
how much gasoline in gallon is used in one year. how much gasoline in grams is used in one year. how much CO2 in grams in grams is produced in a single year?how many pounds of CO2 are produced

chemistry
according to american insurance companies a driver will travel 12,000miles in a single year.gasoline may be taken as primarily C8H18,octane, and the reaction with dioxygen is given below.the driver's vehicle gets 25.0miles per gallon.the density of octane is 0.703g/ml. 2C8...

maths
If a van travels for a distance of 18 km at an average speed of 75 km/h and then for a distance of 63 km at an average speed of 90 km/h, what is the total time for the journey in minutes, to the nearest minute?

Math
The first lap of an auto race is 2000 meters. This 5% of the total race distance. What is the total distance?

math 11
oh sry i forgot to ask these questions.. to help you answer this one its a long one 1.calculate the final value after 10 years if you invest 5000.0 at 2.5% compounded annualy 2.Calculate the amount of interest earned in 10 years on 1000.00 invested at 3.00% per annum, compound...

math 11
An investment earning simple interest rate of 1.10% per annum for a term of 5 years earned 82.50 in interest. What was the principal?

Philosophy
Why did Hobbes name his text Leviathan?

Math
How many faces vertices and edges does a cone have

math
Two representatives are chosen at random from a group of 100 students that has 50 girls and 50 boys. What is the probability that the representatives seledted are either both boys or both girls?

math
In a clinical trial, a drug used to reduce blood pressure caused side effects in 6% of the patients who took it. For a new rial, two patients were selected at random. Find the probability that both the patients had side effects.

math
The odds against pats winning the election are 6:7 with these odds, what is the probablity that pat will win the election.

math
In a clinical trial, a drug used to relieve pain caused side effects in 9% of the patients who took it. For a new trial, three patients were selected at random. Find the probability that none of those patients had side effects.

math
the probability of an event is 7/10. Find the odds in favor of this event occurring.

math
The odds against Pat winning the election are 5:9. With these odds, what is the probability that Pat will win the election?

6th grade math
not a cube, as they have not done cube roots yet. I know the answer, which would be 4x4x5, but looking for a pattern or easy way to explain it.

6th grade math
If the volume of a rectangular solid is 80 cu inches, what dimensions will give the least amount of surface area?

chem
calculate the standard enthalpy change for each of the following reactions. N2O4(g)+4H2(g)=N2(g)+4H2O(g)

principles of physics
the same and your tangential speed less.

Calculus AP
implicit differentiation Find the slope of the tangent line to the curve xy^3 + 2y - 0.76 =0 at the point (-3, o.7) I'm lost. so 3xy^2 * y' + 2y = 0 right?

chemistry
189g

chemistry
3.30 mL of vinegar needs 43.0 mL of 0.150 M NaOH to reach the equivalence point in a titration, how many grams of acetic acid are in a 1.70 qt sample of this vinegar?

chemistry
A What mass of KCl is needed to precipitate the silver ions from 26.0 mL of 0.100 M AgNO3 solution?

math
If a dice is rolled 3 times, what is the probability of rolling a prime number, then a 2, and then a 5?

English
Do you capitalize mom in the phrase your mom?

English
As in the Temperature

ENGLISH-PLEASE HELP!
In Dante's inferno, why does Dante have to get rid of his feelings of sympathy and pity toward sin and sinners in order to grow?

Macroeconomic
Suppose we establish a $10,000 fine for water pollution. Would some companies still find that pollution was economical? Under what conditions?

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