Wednesday
December 7, 2016

Total # Posts: 314

English
What is the purpose of the author using flashbacks in the short story 'penny in the dust'?
December 4, 2016

Math
The sequence a(1), a(2), a(3),...,a(n-1), a(n) is such that a(r)= 7r-3. Show that 1/[?a(r) - ?a(r+1)] = k[?(7r-3) - ?(7r+4)]. The numbers/letters in brackets are subscript.
December 1, 2016

Math
The sequence a(1), a(2), a(3),...,a(n-1), a(n) is such that a(r)= 7r-3. Show that 1/[?a(r) - ?a(r+1)] = k[?(7r-3) - ?(7r+4)]. The numbers/letters in brackets are subscript.
November 30, 2016

Cell Biology
I think its c
November 25, 2016

Earth Science
I dont know how to post it. How do I do it?
November 25, 2016

Earth Science
PLEASE HELP! URGENT! 7. Which letter arrows point to hanging valleys? 8. Which letter arrows point to aretes? 9. Name a peak on the map that is a horn. 10. Feature E on the map is composed of glacial till. What type of glacial feature is E, and how did it form?
November 25, 2016

Math
If one side of triangle measures 3.5 dm. What is the perimeter
October 18, 2016

Pre-Calculus
tan theta = 1/2, what's sec theta?
September 29, 2016

Pre-Calculus
csc theta = sqr root of 5, what is cot theta?
September 28, 2016

Math
The area of a plot of land on map A is 800cm^2. Calculate the area of the same plot of land on map B which has a scale of 1:5000. (Scale of map A is 1:3400)
September 18, 2016

Physics
Having captured a mouse, an owl is flying towards the barn where it lives to enjoy dinner. While approaching the barn at a speed of 6.9 m/s at an upwards angle of 8o above the horizontal, the struggling mouse escapes from the talons of the owl while at an altitude of 4.6 m. ...
September 14, 2016

physics
Fleas can jump quite high; experiments show that they reach an altitude of 130 times their own height when they jump vertically! Suppose instead that a flea can jump so that it lands a maximum distance of 19.60 cm away. What is the take-off speed for this flea?
September 14, 2016

MATH help asap
I'm in 8th grade too, and getting decent grades in math. If you need some help, you can always ask me.I'm here to help :)
September 7, 2016

Math
What is 7/8 into 11/16?
September 6, 2016

How do you collate survey results in a spreadsheet, in order to make graphs afterwards? How do you collate: Open-ended questions Close-ended questions Multi-answer questions
September 1, 2016

Math Help!
I can help you, if you give me questions you need. I'm in connexus eighth grade. What are the problems you need help with? I know it is hard to be behind.
May 25, 2016

Math
Holly used 2/3m ribbon to tie one parcel. How many metres of ribbon will she need for 5 similar parcels?
May 3, 2016

Math
What is the correct unit for volume?
May 2, 2016

centimeter dot grid
Thank you
April 28, 2016

centimeter dot grid
I have to draw rectangles with a perimeter of 16 cm and I don't know how to do it.
April 28, 2016

Math
Wendy is 8 years old. The product of Wendy's and Andy's age is 80. What is Andy's age?
April 18, 2016

Math
Wendy is 8 years old. The product of Wendy's and Andy's age is 80. What is Andy's age?
April 17, 2016

chemistry
calculate the PH at the 60ml of .200M aniline (kb=3.2x10^-6) with .200M HNO3 solution before acid is added after 0,19,70 ml of HNO3
April 12, 2016

Math question help!!
1/3 MULTIPLE BY 24 = 8
April 12, 2016

Chemistry
Write the dissociation equation for calcium chloride. Include a diagram of the resulting solution.
April 6, 2016

Algebra 1
Fred would like to get at least a C in the class. He got a 68 on the first test. Write an inequality and then solve to find out what Fred would need to get on his next test to have a C in the class. • C≥68 (I honestly do not know how to even start this out.)
March 25, 2016

Physics
A Ferris wheel, 24.0 m in diameter, rotates once every 12.5 s(see the diagram.) What is the fractional change in a person'sapparent weight (a) at the top, and (b) at the bottom, as comparedto her weight at rest?
March 8, 2016

physics
Drag race tires in contact with an asphalt surface probably have one of the higher coefficients of static friction in the everyday world. Assuming a constant acceleration and no slipping of tires estimate the coefficient of static friction for a drag racer that covers the ...
February 22, 2016

Math
3/8, 33%, 0.35 Which is the biggest
February 10, 2016

Math
a satellite traveling in a circular orbit 2000 kilometers above the earth completes one orbit every 3 hours. assume the earth is a sphere and its radius is 6400 kilometers. find the angular velocity of the satellite
January 19, 2016

Math
a satellite traveling in a circular orbit 2000 kilometers above the earth completes one orbit every 3 hours. assume the earth is a sphere and its radius is 6400 kilometers. find the angular velocity of the satellite
January 18, 2016

Physics
A block with a mass m = 3.50 kg sits on a surface with a coefficient of static friction µs = 0.520. A spring with spring constant k = 75.0 N/m is hooked onto the block, and is slowly pulled horizontally, gradually stretching the spring. (a) When the spring is stretched ...
November 26, 2015

Social Studies
1. The French announced support for the United States after the American victory at _____. A. Boston B. Saratoga*** C. Philadelphia D. Yorktown
November 23, 2015

Algebra 2
Can someone help me solve this inequality please? So I'm supposed to write the answer in interval notation and then graph it. The problem is the answer I get is negative and I thought that absolutes cannot be negative? Am I wrong? Here is my work so far: |2x-1|+6<2 |2x-...
October 28, 2015

AP physics
A 65-kg skier starts at rest and slides 30 m down a hill inclined at 12∘ relative to the horizontal. Consider the force of friction on the skier to be negligible. Determine the speed of the skier after sliding 30 m downhill.
October 18, 2015

English
Identify the correct sentence. A. Has your cousin and her boyfriend come by to visit you? B. Have your cousin in addition to her boyfriend come by to visit you? C. Have your cousin plus her boyfriend come by to visit you? D. Have your cousin and her boyfriend come by to visit ...
October 15, 2015

Science
So wheres the answers??? I need help too!!
October 7, 2015

Science
0.5sec 16m/s
July 6, 2015

Math 7
how high is a tree that casts a 25 foot shadow at the same time a 6 foot pole casts a 10 foot shadow? Please help! I don't understand how to solve any problem like this!!
June 3, 2015

P.E.
The first step in getting help for drug abuse is Detoxification Withdrawal Joining a therapeutic community Recognizing the problem*** ????????????
May 23, 2015

Math
If no digits may be used more than once , how many 5 digits can be formed using only the digits 3, 8,1,2,5 ,7?
May 22, 2015

P.E
Health /or PE.
May 22, 2015

Social studies
just took it and dac is the answers got 100%
April 28, 2015

Science
What is the equilibrium concentration of silver ions at 25 degrees C in a 1.0-L saturation solution of silver carbonate to which .20 mole of NaHCO3 has been added? The Ksp of Ag2CO3 is 8.1 x 10-12 at 25 degrees C
April 21, 2015

biology
What is the role that sensors play in the maintenance of homeostasis in the human body?
April 10, 2015

Math
The Leaning tower of pisa is 55.9m tall and leans 5.5 degrees from the vertical. If its shadow is 90.0m long, what is the distance from the top of the tower to the top of the edge of it’s shadow? Assume that the ground is level.
April 8, 2015

math
An equation can be used to find the height of a child. Equation is h=2c. The child is 36 inches at 18 months. (12in=1ft) How tall will the child be when he is 5 years of age?
April 6, 2015

Math
An equation can be used to find the height of a child. Equation is h=2c. The child is 36 inches at 18 months. (12in=1ft) How tall will the child be when he is 5 years old?
April 6, 2015

Math
An equation can be used to find the height of a child. Equation is h=2c. The child is 36 inches at 18 months. (12in=1ft) How tall is the child?
April 5, 2015

math
Sam is flying a kite. The length of the kite string is 80 meters, and it makes an angle of 75° with the ground. The height of the kite from the ground is... A.20.27 B.61 C.77.27
March 27, 2015

Math-Lit 143
Suppose you buy a two-year CD for \$50,000 from First Command Bank. Use the APY from the First Command Bank table to determine how much interest it earns for you at maturity.
March 26, 2015

math
Amanda's punch recipe : 7 parts mixed fruit juice, 2 parts of lemonade [Question : how much lemonade will she need to make 180 fluid ounces of punch ?]A .140 Fluid ounces or B. 40 Fluid ounces C. 36 Fluid ounces D. 60 Fluid ounces i think the answer is b am i right
February 21, 2015

chemistry
at STP , what is the volume of 7.08 mole of Nitrogen gas ?
February 7, 2015

algebra
Dorothy is thinking of two numbers. The sum of the numbers is 40 and the difference is 6. write a system of equations and use elimination method to find the two numbers.
February 5, 2015

geometry
A model is made of a car. The car is 7 feet long, and the model is 16 inches long. What is the ratio of the length of the car to the length of the model? 4:21 7:16 16:7 21:4 I think it is C.
February 1, 2015

Physics
In the annual battle of the dorms, students gather on the roofs of Jackson and Walton dorms to launch water balloons at each other with slingshots. The horizontal distance between the buildings is 36.0 m, and the heights of the Jackson and Walton buildings are, respectively, ...
January 28, 2015

English
Explain the link between the play (writers), Thoreau, and the two wars on the notes list.
January 8, 2015

physics
A dart player throws a dart horizontally at a speed of 13.5 m/s. The dart hits the board 0.32 m below the height from which it was thrown. How far away is the player from the board?
January 7, 2015

Health
C I should know because i had this on my quiz.
January 6, 2015

Chemistry
100 cm3 of alkane X with the general formula CxHy requires 650 cm3 of oxygen for complete combustion. Deduce the structural formulae for the isomers of X.
December 17, 2014

Physics
a 60-kg student travelling in a car with a constant velocity has a kinetic energy of 1.2 *10^4 J. What is the speedometer reading of the car in km/h?
December 11, 2014

English
In this novel, Moon Shadow comes to America to be with his father, Windrider, from their home in the Middle Kingdom. As Moon Shadow and his father struggle to survive in a hostile country, they somehow find time to focus on their dreams. Windrider has read about the flying ...
December 9, 2014

English
December 9, 2014

English
In the book dragonwings why does windrider break the rules and go after black dog? Why does the tiger genral cooperate with windrider?
December 9, 2014

English
In the book dragonwings why does black dog beat up moon shadow? What does the fact that the boy is not angry at black dog suggest or tell you about him?
December 9, 2014

English
In the book dragonwings why doesn't moon shadow attend public school? How is he being educated?
December 9, 2014

Calc I
I am having trouble taking the derivative of the following: t(4-t^2)^(1/2) I can't decide if you need to use the product rule or not. What I did is used the PR to get (4-t)^1/2)*1t^2*(4t-1)^(-1/2) Is this correct?
December 7, 2014

Chemistry
2K2Cr2O7 + 8H2SO4 + 3C2H5OH → 2Cr2(SO4)3 + 2K2SO4 + 3CH3COOH + 11H2O
November 29, 2014

Chemistry
During a Breathalyzer Test it was determined that 1.60mg of K2Cr2O7 was consumed by the above reaction. Calculate the number of milligrams of ethanol in the test sample.
November 29, 2014

science
a mechanic applies the force of 50 N at a distance of 40 cm from the pivot on a wheel wrench . what is the size of the moment ?
November 9, 2014

Calculus
Please check, if there is something wrong please explain what I did wrong. Thank you! Calculate the d^2y/dx^2. y= e^-x + e^x y' = e^x - e^-x y'' = e^x + e^-x Find the x-coordinace of all critical points of the given function. determine whether each critical point ...
November 6, 2014

Vertex, Focus, & Directrix of Parabolas
identify the focus,directrix,and axis of symmetry of f(x)= 1/16 x^2
November 5, 2014

chemistry
If you dissolve 236.5 g of (NH4)3PO4 and 166.9 g of K3PO4 in enough water to make the volume of the solution 505.0 mL What is the molarity of ammonium ions and phosphate ions?
November 2, 2014

Physics
At t=0 a grinding wheel has an angular velocity of 24.0rad/s . It has a constant angular acceleration of 35.0rad/s2 until a circuit breaker trips at time t = 1.90s . From then on, it turns through an angle 436rad as it coasts to a stop at constant angular acceleration. Through...
October 5, 2014

Math
F(x)=2sin(3x/2-3pi/4)+2
September 28, 2014

Math
Solve the given quadratic equation exactly using the quadratic formula. Write the solutions in its simplest form. Using a calculator, determine all irrational solutions to the nearest thousandth. Separate the solutions with a comma and list the smaller one first. For the ...
September 23, 2014

Math
In mr.kingmans math class four fifths of the stundents earned an a on their math exam.the rest of the class earned a b .what percent of the class earned an a ? WhAt percent of the class earned a b
August 10, 2014

PHYSICS
Two dogs pull horizontally on ropes attached to a post; the angle between the ropes is 62.0∘. Dog A exerts a force of 270N , and dog B exerts a force of 302N . Find the magnitude of the resultant force. Find the angle the resultant force makes with the rope of dog A.
August 10, 2014

PHYSICS
A dockworker applies a constant horizontal force of 71.0N to a block of ice on a smooth horizontal floor. The frictional force is negligible. The block starts from rest and moves a distance 10.0m in a time of 5.50s . If the worker stops pushing after 5.50s , how far does the ...
August 10, 2014

Chemistry Help
1. Spectroscopic studies of the reaction of azide ion with the cluster [Ru3(CO)12] in acetone solvent confirmed the occurrence of process (i) under a CO atmosphere. Kinetic measurements of this rapid [Ru3(CO)12]+ N3– →[Ru3(NCO)(CO)11]–+ N2(i) reaction revealed ...
July 26, 2014

ENG1511 ENGLISH
Good Day, Please help Correct the following sentences for subject verb-agreement, tense or fragment. When he thought he could afford to pay his own school fees. Going home now, how I wish I could get there before it starts to rain. I am writing my homework after every class
July 21, 2014

ENG1511 - english
Good Day, Please help Either subject verb-agreement, tense or fragment. When he thought he could afford to pay his own school fees. Going home now, how I wish I could get there before it starts to rain. I am writing my homework after every class.
July 21, 2014

Physics
1. How is average speed related to instantaneous speed? What certain conditions must be met for the two variables to have the same or close value? 2. Cite one practical example on the use of the concepts of instantaneous speed, average speed in observing safety on the road.
July 2, 2014

Physics
Dina walked North and East and has a resultant displacement of 125, 35^0 East of North. She has a velocity of 2.5 m/s. Compute her walking time and average speed.
June 26, 2014

Physics
1. A person runs 800. m at an average speed of 6.00 m/s and then the next 800. m at an average speed of 8.00 m/s. Calculate (a) the total time of travel and (b) the average speed. 2. Sam travels by car from one city to another. He drives for 45.0 min at 95.0 km/h, 30.0 min at ...
June 24, 2014

Physics
On the way to class, you walk north and then west such that your resultant displacement is 290 m in a direction 25deg west of north. Your average velocity is 2.0 m/s in the same direction as the displacement. Calculate (a) your walking time and (b) your average speed.
June 24, 2014

Math
Compare and contrast the solutions of ax^2 + h = 0 to the solutions of ax^2 = h, where a and h are positive.
June 19, 2014

Math
1. What is the tenth term of the geometric sequence whose first term (a1) is 16 and the common ratio (r) is –½? 2. Given the terms a10 = 3 / 512 and a15 = 3 / 16384 of a geometric sequence, find the exact value of the first term of the sequence.
June 18, 2014

Math
Given: ________, – 243, – 226, – 209, – 192, – 175, … The 67th term of the sequence is __________. The series of the first 27 terms of the sequence is __________.
June 18, 2014

Math
– 11 is the __________ term of the arithmetic sequence – 847, – 836, – 825, – 814, – 803, …
June 17, 2014

Physics
A person runs 800. m at an average speed of 6.00 m/s and then the next 800. m at an average speed of 8.00 m/s. Calculate (a) the total time of travel and b) the average speed.
June 17, 2014

Math
Find the value of x so that 3x – 2, 2x – 1 and 4x – 3 form an arithmetic sequence.
June 17, 2014

Math
Black Eyed Peas’ 2011 Live Concert is to take place in a circular park. Due to the shape of the area, seats are set up so that the innermost row has 64 seats and each successive row has 17 more seats than the row before it. The park’s open area can accommodate 17 ...
June 17, 2014

college math
The area of a wetland drops by 15 every 9 years. What percent of its total area disappears after 45 years?
April 1, 2014

Physics
What would be the total distance traveled?
March 23, 2014

Physics
A stone is thrown in the air with an initial velocity of 50 m/s at 37 degrees to the horizontal. Find the total time the ball is in the air.
March 23, 2014

Physics
The rope forms a triangle with the pole and the angle is between the rope and the point at which it connects to the pole.
March 12, 2014

Physics
A carnival seat and a passenger has a combined weight of 193. As the seat is spun on a 18m rope tethered to a pole at an angle of 59.2 degrees, at what speed is the seat traveling?
March 12, 2014

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