Friday
August 28, 2015

Posts by ANONYMOUS


Total # Posts: 83,597

Math
Simplify by writing each fraction in lowest terms: X^2-y^2/(x-y)^2 My work: X^2-y^2/(x-y)^2 =X^2-y^2/(x-y)(x-y) =X^2-y^2/x^2-2x2y-y^2 I don't know what to do next.
August 28, 2015

English
I have to write a thematic essay and a characteristic essay. I have a few questions in the writing. I am in grade 11 right now. 1) what should I include in the introduction? Whenever I write anything about the story, my tutor says that is summarizing and I should not do that ...
August 28, 2015

Math
X^-5 * X^7 = X^2 And the reason is because when u are multiplying with the same base, you add the exponents
August 28, 2015

government
How much power and autonomy should Texas have in relation to the federal government? Why?
August 28, 2015

Algebra 2
You need to earn $539 per week to afford the new car you want to purchase. Your work week is 46 hours. You get 1.5 times the regular hourly rate for overtime (anything over 40 hours). How much does your hourly rate need to be? (use step 1-4).
August 27, 2015

Geometry
Point J is between H and K on line HK. Use the given information to write an equation in terms of x. Solve the equation. Then find HJ and JK HJ=5x-3 JK=x-9 KH=5x
August 27, 2015

Algebra
(1,12) (2,76) (3,108) (4,124) (5,132) (6,136) (7,138) (8,139) (9,139.5) What is the rule or equation?
August 27, 2015

math
the garden has fencing around the perimeter and has a partition down the center. The length of the garden is 30 ft and the entire length of fencing used is 37 yards. How long is the partition in feet?
August 27, 2015

geography need help please
I need to pass my finals tomorrow! pleas help me! its geometry? Does anyone know how to do any of these problems ? please help! 1- 3, 5, 7, 9... Generalize the pattern by finding the nth term. A) 3n B) 2n + 1 C) n + 2 D) (n + 1)(n + 2) 2- If the radius of a cylinder is doubled...
August 27, 2015

Algebra
Written in simplest form, 3x^3-27xy^2 / 12x^2+36xy is: (1) x+3y/4 (2) x+4y/3 (3) x-3y/4 (4) x-3y/4(x+3y) My work: 3x^327xy^2/12x^2+36xy=3x(x^2-9y^2/3x(4x+12y)=x^2-9y^2/4(x+3y)
August 27, 2015

equation on tangent of a curve need help
Ok tankz for the clue u have given me am grateful
August 27, 2015

science
2.55 molecules
August 27, 2015

math
If (2 1/2)^4y =1/8 then y = A. -4 B. -1/8 C. 7/8 D. 3/2 E. 21/16
August 27, 2015

physics
a ball is thrown horizontally from the top of a building 35m. high. the ball strikes the ground at a point 80m from the base of the building. a. find the time the ball is in flight b. its initial velocity c. the x and y components of velocity just before it hits the ground
August 27, 2015

Algebra 2
the sum of the angles in a triangle is 180 degrees. if A:B:C = 2:3:3, what is C-A?
August 26, 2015

Algebra
Need help to an math problem. James have 15 cases, with 15 boxes per case, and 15 brands per box. Write an exponential expression using a base of 15 to show how many total brands there are in a stack of cases. How would I write that?
August 26, 2015

PLEASE HELP GEOMETRY
A. a protractor is used to take measurements B. four right angles are created C. a compass is used to copy an angle **** D. there are no similarities
August 26, 2015

PLEASE HELP GEOMETRY
When constructing inscribed polygons and parallel lines, how are the steps similar? a protractor is used to take measurements four right angles are created a compass is used to copy an angle **** there are no similarities I think its c, but it might be b. PLEASE HELP <3
August 26, 2015

HELPPPP! ELECTRONICS
When an electron is displaced in a semiconductor, the hole that's left behind is A. incapable of carrying a charge. B. considered an impurity in the crystal. C. attracted to the anode of the voltage source. D. attracted to the negative terminal of the voltage source.
August 26, 2015

Calculus
True or false. 1. If f(x) has a vertical asymptote at x=a, then the limit of f(x) as x --> a from the left is negative infinite and the limit of f(x) as x--> a from the right is positive infinite. I think this is true. Take for instance, a rational function. the two ...
August 26, 2015

Math
Write an algebraic equation to solve for the pencil cost (x). 5(0.3)+30x= 10(0.3) + 24x 1.50 +30x=3+24x 1.50+6x=3 6x=1.5 x=1.5/6=0.25 The cost of the pencil is $0.25.
August 26, 2015

math
Let a=6 and b=2. a^b=36 ------> 6^2=36 b^a-2 ---> 2^6-2 = 2^4=16
August 26, 2015

Math
a rectangular piece of cardboard is twice as long as it is wide . from each of its for corners, a square piece 3 inches on a side cut out. the flaps at each corner are then turned up to form an open box. if the volume of the box is 168 cubic inches, what were the original ...
August 26, 2015

mathematics
Use the quadratic formula to find the exact roots of 2x² = 5x + 2
August 26, 2015

chmistry
For the following equation, how many grams of NO2 can be formed from 2.50 g of CuO mixed with 0.500 L of NO gas at 25 C and 1.12 atm. ? 2 CuO (s) + NO (g)  Cu2O (s) + NO2 (g
August 26, 2015

language arts
2. In which of the following sentences does the boldfaced word contain the Latin root -lum-? A.The bear tucked into his cave for a long winter's (slumber). B.Hannah's face was (luminous) with the soft morning light. *** C.The (plumber) peered into the dark drainpipe. ...
August 26, 2015

sound
In a stringed musical instrument, the sound frequency of a particular string can be increased by A. lengthening the string. B. tightening the string. C. increasing the string's thickness. D. loosening the string.
August 26, 2015

Piper
4^2-((5(2+1) )
August 25, 2015

English
The match yesterday was won by ..
August 25, 2015

math
e is true
August 25, 2015

math
if the equation |x - a| = |y - a| is true, then which of the following must be true? a. |x| = |y| b. x>a c. |x + y| ‚ 0 d. y<a e. | -a+y | = | -a+x |
August 25, 2015

Math
During a parade,band members marched in 18 rows.There were 9 band members in each row .The band members marched for 2 miles. How many band members were there?
August 25, 2015

smiley
What number can you subtract from 3,200 so that their differences is a 4 digit number with the digits in the thousands place, The digits in the hundreds place and zero in the tens and ones place
August 25, 2015

Math
Use the commutative and distributive properties of multiplication to write an equivalent expression to 2(x−3).
August 25, 2015

Biology -- metric
Which statement best describes the significance of the number 10 in the metric system? The system is used by 10 countries There are 10 metric prefixes There are 10 base units The system is based on multiples of 10. * my answer How many places would the decimal move in a ...
August 25, 2015

Science
A scientist is testing the effects of fertilizer on peanut production. He plants 4 peanut plants and applies a different amount of fertilizer to each plant. Two of the plants die. Can he conclude that the amounts of fertilizer used on those plants were lethal? What other ...
August 25, 2015

Manometer
A manometer is used to measure the pressure of a gas in a container one side is connected to the container the other side is open to the atmosphere. A manometer contains water of density 1000kg/m^3 and the head is 250mm. Calculate the gauge pressure of the gas in a container.
August 25, 2015

math
Susan has 8/9 gallons of water. She drinks 2/5 of it. Select all the statements that help you determine what fraction of a gallon she has left. Divide 8/9 by 2/5. No Divide 2/5 by 8/9. Yes Multiply the fractions together. No Multiply 8 x 2 and 9 x 5. No Can someone check my ...
August 25, 2015

geography
THANK YOU! I know your right, kind of stress out and short cuts are looking really good BUT YOU ARE THE BEST FOR CONFIRMING!
August 25, 2015

geography
I have searched everywhere, plzzzz help!!! i dont get it!
August 25, 2015

geography
Which of the following countries has the highest number of Fortune 100 companies? A. United States B. Germany C. Japan D. France im leaning more on a
August 25, 2015

Tech
What types of issues can you likely resolve by knowing how to access and use the control panel. Choose all that apply. Network Issues*** Screen resolution and volume issues frozen application issues virus issues***
August 25, 2015

Science
thank you
August 25, 2015

Science
A chemist notes that a solution turns blue when a chemical reaction takes place. Which of the following correctly describes the chemist's data? A.The data is a qualitative observation*** B.The data is a quantitative observation C.The data is a prediction D.The data is a ...
August 25, 2015

Science
Thanks
August 25, 2015

Science
A biologist determines that a lizard's body temperature is 29 degrees C. Which of the following correctly describes the biologist's data? a) it is a qualitative observation b) it is a quantitative observation*** c) it is a prediction d) it is a classification
August 25, 2015

Science
thx
August 25, 2015

Science
You walk into the kitchen and see a broken egg on the floor. Which of the following is an inference you can make based on this observation? a) The egg rolled off the kitchen counter*** b) the dog will eat the egg off the floor c) there are pieces of broken eggshell on the ...
August 25, 2015

math
Thanks man
August 25, 2015

math
-12 ÷ 3 x ( -8 + (-4)^2 - 6 ) + 2 how do you simplfy this expression?
August 25, 2015

Maths
The sum of the 8 terms of a GP is 5 times the sum of first 4 terms. Find the common ratio.
August 25, 2015

Math
The sum of the length, width, and height of a box is 80 cm. The length is 10 cm less than twice the sum of the width and the height, and twice the width exceeds the height by 6 cm. Find the height of the box.
August 25, 2015

Physics
When the shuttle bus comes to a sudden stop to avoid hitting a dog, it decelerates uniformly at 3.6 m/s^2 as it slows from 8.5 m/s to 0 m/s. Find the time interval of acceleration for the bus. Answer in units of s.
August 25, 2015

Physics
A car travels in a straight line for 2.9 h at a constant speed of 77 km/h . What is its acceleration? Answer in units of m/s^2
August 25, 2015

English (3rd grade)
How to analogies eighteen even thirty three
August 25, 2015

Math
explain how you know that in ? x 6.273 = 6.273. THe ? will be 1.
August 24, 2015

Math
Nancy collects plastic banks. He has three different banks a pig a cow and a horse. How many ways can Yancey arrange his banks on a shelf?
August 24, 2015

geometry
A globe has a diameter of 24 inches. A smaller globe has a diameter of 18 inches. What is the surface area volume ratio of the smaller globe
August 24, 2015

English
We were pleasantly surprised to see that she completed the difficult task we had given her with neatness and (irk, dispatch)
August 24, 2015

geometry
A family is getting a doghouse for their dog. The doghouse is proportional to their own house, which is 115 feet long and 65 feet wide. The scale is 0.04. What is the length of the doghouse?
August 24, 2015

Milton mpfumedzeni life orientation grade 11
To wich bad road use has a direct impact on the physica,l social and economic aspects to the family the community and the country
August 24, 2015

life science
Two breaking tubes,two drnking staws,clear lime water
August 24, 2015

Word problems
hmmm. yeah. I wonder how I (a) got that answer, and (b) didn't immediately notice that it made no sense. Anyway, Rachel, you can see how to fix it and get the right answer. Unlike me, check it for consistency!
August 23, 2015

Math
F(x) = x^2 +1 , x cannot equal 2 F(x)= 3 , x=2 What is the limit of f(x) as it approaches 2?
August 23, 2015

Calculus
If 2 < or = to f(x) < or = to x^2 + 2 for all x, find the limit of f(x) as it approaches zero.
August 23, 2015

Calculus
F(x)=(2x-1)/ (|x| -3) Rewrite f(x) as a piecewise function. Then find the limit as it approaches positive infinity and negative infinity.
August 23, 2015

Math
If a population grows at 8% per year, how long will it take the population to double?
August 23, 2015

Math
If the current population is 7,361,920,000 and grows at approximately 1.14% per year, what will the human population be this time next year?
August 23, 2015

Math
If the current population is 7,361,920,000 and grows at approximately 1.14% per year, what will the human population be this time next year?
August 23, 2015

Math
If a city of 10,000 experiences 60 births, 35 deaths, 40 immigrants and 25 emigrants in a single year, what is the city's population growth rate?
August 23, 2015

Computer science
77c
August 23, 2015

Introd to Stat
A researcher conducts a test on the effectiveness of a cholesterol treatment on 114 total subjects. Assuming the tails of distributions are normal distribution, is there evidence that the treatment is effective? Cholesterol Decreased No Cholesterol Decrease Total Treatment 38 ...
August 23, 2015

Calculus
If 2 < or = to f(x) < or = to x^2 + 2 for all x, find the limit of f(x) as it approaches zero.
August 23, 2015

Calculus
If 2 < or = to f(x) < or = to x^2 + 2 for all x, find the limit of f(x) as it approaches zero.
August 23, 2015

Calculus
F(x)=(2x-1)/ (|x| -3) Rewrite f(x) as a piecewise function. Then find the limit as it approaches positive infinity and negative infinity.
August 23, 2015

calc
A car travels along a straight road for 30 seconds starting at time t = 0. Its acceleration in ft/sec2 is given by the linear graph below for the time interval [0, 30]. At t = 0, the velocity of the car is 0 and its position is 10. What is the velocity of the car when t = 6? ...
August 23, 2015

life orientation
To which bad road use has a direct impacton the physical, emotional, social and economic, Aspects to the family, the community and the country.
August 23, 2015

calculus: don't even no where to start from need help plz
2X+4x =6x
August 23, 2015

Calculus
Find the limit as it approaches zero. ( f( x + change in x) - f(x) )/ change in x given f(x)=2x-5. ( change in x = triangle x)
August 23, 2015

Calculus
Graph the function f(x)= x sin( 1/x) and the equations y=|x| and y=-|x| in the same viewing window on your calculator. Then use the squeeze therom to find the limit of f(x) as it approaches zero. I graphed the function and equations, but I am confused on how to find the limit ...
August 23, 2015

Math
Sorry it was: √2x/9.81= √(300+x)^2+60^2/150
August 22, 2015

Math
Find x √2x/9.81= √(300+h)^2+60^2/150 Thankyou!
August 22, 2015

Physics
A clown at a birthday party has brought along a helium cylinder, with which he intends to fill balloons. When full, each balloon contains 0.00280 m3 of helium at an absolute pressure of 1.20 x 105 Pa. The cylinder contains helium at an absolute pressure of 2.90 x 107 Pa and ...
August 22, 2015

math
156.1 is 70% of what number?
August 22, 2015

calc
The velocity of a particle moving along the x-axis is v(t) = t2 – 2t, with t measured in minutes and v(t) measured in feet per minute. To the nearest foot find the total distance travelled by the particle from t = 0 to t = 3 minutes..
August 22, 2015

Physics
In a house the temperature at the surface of a window is 22.3 °C. The temperature outside at the window surface is 2.82 °C. Heat is lost through the window via conduction, and the heat lost per second has a certain value. The temperature outside begins to fall, while ...
August 22, 2015

physics
two small kids weighing 10kg and 15kg are trying to balance on a seesaw of total length 5 m with the fulcrum at the centre. if one of the kids is sitting at an end where should the other sit?
August 22, 2015

algebra
99
August 22, 2015

Math
nope, try c.
August 21, 2015

Physics
energy is proportional to temp to the forth power. fourth root of 81 3^4=81
August 21, 2015

Physics
The Kelvin temperature of an object is T1 and the object radiates a certain amount of energy per second. The Kelvin temperature of the object is then increased to T2, and the object radiates 81 times as much energy per second as it radiated at the lower temperature. What is ...
August 21, 2015

Math
50% Rule: The repackaged vial or unit dose must have an expiration date placed on it; but it is not the same expiration date as what is on the stock bottle. You must take the date on the stock bottle and write the half way date between today’s date and the expiration date...
August 21, 2015

Math
Sammy has fifty coins in his pocket that add up to one dollar. how many coins of each denomination are in sammy's pocket?
August 21, 2015

Geography
1. Piedmont and Blue ridge 2. Costalplain and Piedmont
August 21, 2015

Geography
the fall line divides which two physiographic regions
August 21, 2015

Physics
A man can swim in still water at a speed of 3km/hr.He wants to cross the river that flows at 2km/hr and reach the point directly opposite to his starting Point.find the angle if his body makes with the river flow.
August 21, 2015

Geography
Thanks
August 21, 2015

Geography
in 3-5 sentences, provide brief description of the Okefenokee Swamp, its creation as a national wildlife refuge, and its importance for biological diversity in the state.
August 21, 2015

Integration
think of it as (x-)^(-1/2) looks like (2x-1)^(1/2) + c or sqrt(2x-1) + c to me
August 21, 2015

Math- Need Help
You apparently multiplied the first equation by 3 and the 2nd by 4. Your first should have been 15x + 12y = 15 and then 16x + 12y = 20 subtract them x = 5 back into the first: 5x+4y=5 25+4y=5 4y = -20 y = -5 your line of 31x/31= 38/31 makes no sense. Looks like you added the ...
August 21, 2015

  1. Pages:
  2. 1
  3. 2
  4. 3
  5. 4
  6. 5
  7. 6
  8. 7
  9. 8
  10. 9
  11. 10
  12. 11
  13. 12
  14. 13
  15. 14
  16. 15
  17. Next>>

Members