Friday
February 12, 2016

# Posts by courtney

Total # Posts: 744

Math
The diameter of a circle is 130 cm, and a chord of the circle is 66 cm long. What is the distance between the chord and the center of the cirlce?
April 15, 2012

Geometry
A park maintenance person stands 23 m from a circular monument. If you assume her lines of site are tangents to the monument and make an angle of 23degrees, what is the measure of the monument that her lines of site intercect?
April 15, 2012

Geometry
Thanks so much!
April 15, 2012

Geometry
The measure of the central angle of a sector of a circle is 90degrees. The arc length of the sector is 3(pie) cm. What is the radius of the circle?
April 15, 2012

Geometry
6 = x + 2
March 31, 2012

Algebra 2
Part 1 Describe the graphs of the functions f(x) = 2^x – 1 and g(x) = –2^x – 1 Part 2 Compare and contrast the domain and range of f(x) and g(x).
March 29, 2012

earth
3. Show how the length of day changes with latitude by plotting the following points. Use the table below as a graph and place an X in the box where you want to plot a data point. For example, if you find that a day is 10 hours long at 30° N latitude, represent this data ...
March 26, 2012

chemistry
What weight of potassium chlorate is required to prepare 89.6mL of oxygen measured over water at 21.0 degrees C and 743 millimeters of mercury?
March 17, 2012

calculus
How do I find the indefinite integral of cosx/(1-cos^2 x)dx?
February 26, 2012

geometry
If you had a room that is 10 foot by 12 foot in the shape of a rectangle, and one gallon of paint covers about 350 square feet, how many gallons of paint would you have to buy if you were painting the walls and the ceiling?
February 21, 2012

GEOMETRY
Find JK for (3,8) and K(-1, 4).
February 20, 2012

physics
The 1 kg standard body has an acceleration of 2 m/s^2 at 56 degrees to the positive direction of the x axis. What are the x and y components of the net force on it? What is the net force of the unit-vector notation?
February 17, 2012

literature
Write two original sentences for each of the following seven sentence patterns: 1.S-V-DO (includes S-V-DO-OC) 2.S-V 3.S-V-IO-DO 4.S-LV-PN 5.S-LV-PA 6.EXPLETIVE-VERB-SUBJECT (inverted sentence) 7.QUESTION PATTERN
February 14, 2012

Trugonometry
Simplify the expression √x2 +1 as much as possible after substituting tan(θ) for x.
January 31, 2012

Math
Determine each tangent ratio to four decimal places using a calculator. A) tan 74 degrees B) tan 45 degrees C) tan 60 degrees D) tan 89 degrees How do I figure this out !?
January 19, 2012

physics
A 15 kg block is pulled 5 m across the frictionless floor with a force of 62 N at a 41 degree angle. Calculate the total work done on the block.
January 18, 2012

geography and world Cultures
i dont know LMFAOOOOOOOOOOOOOOOOOOO
January 17, 2012

Geometry
Use the slope of AB to determine which line below, if any, is parallel to AB. A(1,8) B6,-4) a. y = 5/12x + 5 b. y = -5/12x + 5 c. y = 12/5x + 5 d. none
January 11, 2012

Geometry
Use the slopes of AB and CD to determine whether AB and CD are parallel, perpendicular, or neither. A(-8,5) B(-2,-4) C(6,0) D(0,-4)
January 11, 2012

Geometry
Find a counterexample to the following definition: An animal with wings is a bird.
January 10, 2012

Geometry
How can the statement "cars are vehicles" be written as a conditional statement?
January 10, 2012

Geometry
write two conditional statements that make up the following biconditional statement: "Two lines are perpendicular if and only if their intersection creates 4 right angles."
January 10, 2012

Pre-Cal
are you sure tan e is correct?? you have to round to 4 places. I got .1005 for it
December 15, 2011

math algebra 2
(y-3)/2-13=-9 solve for y
December 14, 2011

math algebra 2
solve for y 5x-y=3z+5y
December 14, 2011

Ben davis
solve for y 4y+10=12
December 14, 2011

physics/math
Ahhh! I've seen some examples of this type of problem but I can't seem to solve it! Two stones are thrown simultaneously, one straight upward from the base of a cliff and the other straight downward from the top of the cliff. The height of the cliff is 6.86 m. The ...
December 13, 2011

Algebra 2
Find each of the following for x^2+5x+6 and x^2+x-2. a) the LCM b) the GCF
December 7, 2011

Calculus
A tank is full of water. Find the work W required to pump the water out of the spout. r=6 h=3
December 5, 2011

Calculus
A tank is full of water. Find the work W required to pump the water out of the spout. r=6 h=3
December 5, 2011

Calculus
A spring has a natural length of 24 cm. If a 27-N force is required to keep it stretched to a length of 30 cm, how much work W is required to stretch it from 24 cm to 27 cm? (Round your answer to two decimal places.)
December 4, 2011

Calculus
A spring has a natural length of 24 cm. If a 27-N force is required to keep it stretched to a length of 30 cm, how much work W is required to stretch it from 24 cm to 27 cm? (Round your answer to two decimal places.)
December 4, 2011

calculus
ç(3x+2) dx
November 30, 2011

calculus
Evaluate the integral. Express your answer using words or symbols. ç(-2sin x) dx
November 30, 2011

calculus
Approximate the area in the first quadrant between the x-axis, the y-axis, the line x = 3, and the function f(x) = x^2+1 For this approximation, you must use 6 rectangles of equal width, and this must be a lower sum. In your answer, you must include letters a-d below: a. The ...
November 30, 2011

calculus
Solve the differential equation below, given the initial condition f(0) = 3. Express your answer using words or symbols. y=-5x^2
November 30, 2011

A Fortune 500 CFO admits to having deliberately treated \$4 billion in operating expenses as assets, thereby allowing the corporation to show profits instead of losses. The auditor never detected this. The corporation’s stock drops 95 percent and bond covenants related to ...
November 27, 2011

science - biology
What is the health advantage that can result in sickle cell hemoglobin?
November 13, 2011

Physics
A block of mass m is being dragged across the floor by a force F. The coefficient of friction between the block and floor is u. Show that if the block is being accelerated by the force F from rest for a time t, the speed of the block at time t can be found from: Vf= (F/m - ug)t
November 10, 2011

algebra
Find each of the following for x^2+5x+6 and x^2+x-2. a) the LCM b) the GCF
November 9, 2011

calculus
Find the number b such that the line y = b divides the region bounded by the curves y = 16x2 and y = 9 into two regions with equal area. (Round your answer to two decimal places.)
November 9, 2011

calculus
Find the number b such that the line y = b divides the region bounded by the curves y = 16x2 and y = 9 into two regions with equal area. (Round your answer to two decimal places.)
November 9, 2011

Social Studies
I've done research Im just not sure which one would be the best answer I'm really confused
November 9, 2011

Social Studies
The interaction of private companies trying to make the greatest profit and customers trying to get the best deal is called A) competition B) blind faith C) the invisible hand D) the zero sum game Blind faith means belief without true understanding so I'm pretty sure it&#...
November 9, 2011

Social Studies
Thank you!
November 9, 2011

Social Studies
Oh that helps , so the answer is A then .
November 9, 2011

Social Studies
I'm still not sure
November 9, 2011

Social Studies
I've read a lot about him , i think it is C but I'm not sure . There is info on him that leads me to other answers as well...
November 9, 2011

Social Studies
Karl Marx's ideas are the foundation of A) communism B) capitalism C) mercantilism D) fascism
November 9, 2011

career research&decision making
each occupational field
November 4, 2011

chemistry
Find the solubility of AgBr in 3.9 M NH3 [Ksp of AgBr = 5.0 10-13 and Kf of Ag(NH3)2+ = 1.7 107]
November 4, 2011

General Chemistry 1
What is the FBF bond angle for BF^4- ?
November 3, 2011

trig
Hi, I need to find the domain and rnge of the following: 1. X= 1/2 (cos theta + theta sin theta) Y=1/2 (sin theta - theta cos theta) total guess here, but here goes Domain cos theta = +/- 1 and domain sin theta = +/- 1 so domain theta sin theta = 0- +/-infinity so domain of X...
October 31, 2011

physical science
how do i find how long the steel is in a 156 kg coil of sheet steel that is .80 mm thick and 50 cm wide.
October 16, 2011

english
mrs. sally johnson lives in dallas texass whats the capitalization?
October 15, 2011

Pre-Calculus
I posted earlier and didn't get an answer so I'm posting again-hoping someone could please check these two-I think they're correct Please check my answer: I think it's correct? 1.Find polar form of (-3,2) r=sqrt of (-3)^2 + 2^2)=sqrt (13) = 3.61 tan^-1(2/-3) = ...
October 13, 2011

Pre-Calculus
Please check my answer: I think it's correct? 1.Find polar form of (-3,2) r=sqrt of (-3)^2 + 2^2)=sqrt (13) = 3.61 tan^-1(2/-3) = 33.79 180-33.79 = 146.31degrees polar points are (sqrt13,146.31degrees) 2. Rectangular form of (3,112degrees) 3cos112= (-1.12) 3sin112=2.78 ...
October 13, 2011

Physics
Two football players start from rest, 12 m apart. They run directly towards each other, both players accelerating. The first player has an acceleration of 5 m/s^2 and the second has an acceleration of 4 m/s^2. a) how much time passes before they collide? b) at the instant they...
October 10, 2011

EXP 105 Personal Dimensions of Education
Someone who likes to fix things without talking or writing about what he is doing is most closely associated with Use First of the ____________ Pattern.
October 10, 2011

trig
a tower standing on level ground is due north of piont N and due west of point W, a distance 1,500 feet from N. If the angles of elevation of the top of the tower as measured from N and W are 8 and 11, respectively, find the height of the tower.
October 9, 2011

Economics
1.Which of the following is NOT a decision that can be made at the margin? whether to grow beans or corn on large farm whether to hire 100 new workers or not whether to leave early in the moring or late in the day whether or not to go on vacation, I think this is the answer, ...
October 6, 2011

algebra 2
part 1 Describe the graphs of the functions f(x) = 2^x – 1 and g(x) = –2^x – 1. Part 2 Compare and contrast the domain and range of f(x) and g(x).
September 29, 2011

math
what is 1,000m3 mean. how do it get to the answer of 96,050 x 1,000 m3.
September 29, 2011

Biology
What is technolgy?
September 21, 2011

Algebra
Two numbers whose sum is 30 and product is 8800? How do I find that?
September 12, 2011

Algebra
Two numbers whose sum is 30 and product is 8800? How do I find that?
September 12, 2011

SCIENCE
How do you figure out the following ..?::::: Mass Number Number of Protons Number of Electrons (OF A ELEMENT) Number of Neutrons Thanks ~ Courtneeeey (:
September 6, 2011

economics
doubled
August 31, 2011

Mathematics
The lengths of two opposing sides of a square are decreased by forty percent. By approximately what percent would the lengths of the other two sides have to be INCREASED so that the area of the new figure ( a rectangle) is the same as the area of the original square?
August 14, 2011

world geography
why did the south agrican government change its policy of apartheid in 1990 and 1991
June 28, 2011

Derivatives
a pationt recives an injection of 1.5 milligrams of a medication, and the amount remaining in the bloodstream t hours later is A(t)= 1.5e^-0.08t .find the instantaneous rate of change of this amount: a) Immediately after the injection (time t=0)
June 28, 2011

Social Studies KKK
How did the federal government help to reduce the klans's influence in the south?
June 3, 2011

world history
Britain is wrong
June 2, 2011

science
whats the physical form in which a substance exists?
May 16, 2011

geometry
what is the midpoint of a line segment with endpoints at (-4, 15) and (22,3)
May 16, 2011

chemistry
write the formula of each acid and identify each as a diprotic, a triprotic, or a monoprotic acid sulfuric acid,perchloric acid,phosphoric acid,hydrofluoric acid,acetic acid
May 14, 2011

World Geography
What words best describe the Baltic landscape?(there can be more then one answer) a. desert b. flat c. lowland d. marshland e. mountainous f. tropical I think its B E and F Can someone please help?
May 12, 2011

Math
Find the first five terms of each sequence, defined by the given rule. An=6N-2
May 5, 2011

Finance- Real Estate....really need help!!!
A developer is interested in a parcel of land for a small mixed use development. Similar developments are worth \$15 million and require the following sequential investments to complete: Phase Description 1 Purch. land, permitting, utilities 2 Build retail 3 build apartment ...
May 3, 2011

Real Estate Finance
A developer is interested in a parcel of land for a small mixed use development. Similar developments are worth \$15 million and require the following sequential investments to complete: Phase Description 1 Purch. land, permitting, utilities 2 Build retail 3 build apartment ...
May 2, 2011

chemistry
How many grams of hydrogen peroxide must decompose to give 255 mi of oxygen gas at stp?
April 27, 2011

chemistry
How many grams of hydrogen peroxide must decompose to give 255 mi of oxygen gas at stp?
April 27, 2011

Speech
After analyzing a problem, what is the next step in the problem-solving process? a. Develop creative solutions. b. Identify possible solutions. c. Select a solution. d. Implement a solution. I think it might be B
April 26, 2011

Writing
Thanks!
April 25, 2011

Writing
I have to write my rough draft for a research paper. I have to include a thesis statement and an attention grabber. Can someone give me some examples of attention grabbers please?
April 25, 2011

Speech
the 1st one i picked b the 2nd i picked d
April 20, 2011

Speech
Group communication should be evaluated according to which of the following characteristics? a. Do the group members attain their individual goals? b. Do all members participate in the decision-making process? c. Does the group leader encourage member-to-member interaction? d...
April 20, 2011

Speech
Why is it important for group members to be group-oriented?
April 20, 2011

Chemistry
1.62 g of CoCl2 x (xH20) were heated. After heating only .88g of CoCl2 remained. What was the formula of the original hydrate?
April 5, 2011

Chemistry
how do you find PH of 0.010 M HNO3 solution?
April 5, 2011

Managerial Accounting
Flexible budget planning Sam Yu, the president of Centech Computer Services, needs your help. He wonders about the potential effects on the firm's net income if he changes the service rate that the firm charges its customers. The following basic data pertains to fiscal ...
April 5, 2011

trig
secx=5 use a graph to solve the following equation in the interval x is greater than -pie but less than pie
March 30, 2011

I'm having trouble figuring out this question. I can't think of a legal theory that would apply in this case. If anyone could help me out, that would be great! Fidelity Mortgage sells a mortgage on Doug Quicksilver's home to Enterprise Bank. Enterprise erroneously ...
March 29, 2011

intro to statisics
78% of US homes have a telephone answering device. In a random sample of 250 homes, what is the probability that fewer than 50 do not have a telephone answering device. Courtney, 2nd yr college
March 29, 2011

physics
The total energy of a 2.00 kg falling rock is 5000 J. If its potential energy is 1975 J, the kinetic energy of the rock is ____ J. The speed of the rock is ___ m/s
March 28, 2011

algebra 2
how do i graph: y(less than or equal to)-6ãx
March 27, 2011

World Geography
Which of these statments describe NATO? 1. NATO's preferred method for resolving conflict is through military defense. 2. NATO's original purpose was to defend its members from Soviet aggression. 3. NATO's members include the U.S. and Canada. 4. NATO was disbanded ...
March 25, 2011

World geography
This period was a time of great political unrest, which divided Europe into eastern and western sections. a. Cold War b. Imperialist c. Middle Ages d. Yalta Conference
March 24, 2011

Geography
What caused the fall of the Roman Empire? a. defeat by Greece in the Pyrrhic War b. lack of cultural cohesion c. land region was too large to defend d. peasant rebellion
March 24, 2011

World Geography
What about polotics, culture and settelment patterns? What could any of these have to do with water in western europe? Im highly confused..
March 22, 2011

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