Wednesday
February 10, 2016

# Posts by Erin

Total # Posts: 641

Reptiles and amphibians do share some similarities and could also be considered as related, though very distinctly, but there are some very important characteristics that clearly distinguish the two from each other. A notable similarity between the two is that both are cold ...
October 25, 2010

or 624 units(ones)
October 21, 2010

Algebra
Or would it be -60c?
October 20, 2010

Algebra
To simply the expression of 10*(-2c)*3 I need to make sure I understand it, would the answer be 30-2c?
October 20, 2010

After reaching its highest point the blue ninja rocket's chute opens. If the rocket falls at a constant speed of 1.5 m/s. From the height of 300m in a cross wind of 4 m/s. How far down wind does the rocket travel from the launch pad?
October 19, 2010

Physics 11
After reaching its highest point the blue ninja rocket's chute opens. If the rocket falls at a constant speed of 1.5 m/s. From the height of 300m in a cross wind of 4 m/s. Hoe far down wind does the rocket travel from the launch pad?
October 18, 2010

Algebra
Please let me know if I simplified this correctly. Simplify: -5w squared + 23-(29-4w squared +9) -5w squrd + 23 - 29 + 4w squrd -9 -1w to the fourth power + -15 Thanks!!!
October 17, 2010

physics
A motorcycle stunt rider must jump a 100m wide canyon given a 20° ramp positioned on either side. What minimum speed is required so the rider will clear the canyon?
October 17, 2010

Introductory physical science
We needed to find the sensitivity of our equal arm balance and the question I need help with is....What are 2 reasons why you need to know the sensitivity of your balance?
October 14, 2010

biology
how do 2 neurons can communicate with each other to send messages
October 13, 2010

college algebra
Use point-slope form to write the equation of the line with the given properties. Write the equation in standard form. m is undefined passing through P(-7, -7)
October 13, 2010

Algebra
Input X: 0,1,2,3,4,5,6 Input y: 80,72,64,56,48,44,40 Help! y=????
October 4, 2010

Chemistry
If 18.8mL of 0.800M HCL solution are needed to neutralize 5.00mL of a household ammonia solution, what is the molar concentration of the ammonia? How do I solve this? Thank you.
September 29, 2010

physics
How long after being released does the stone strike the beach below the cliff? With what speed and angle of impact does the stone land?
September 27, 2010

physics
A student stands at the edge of a cliff and throws a stone horizontally over the edge with a speed of 22.0 m/s. The cliff is h = 23.0 m above a flat horizontal beach, as shown in the figure below.
September 27, 2010

math
One of the world's fastest roller coasters is located in a theme park in Valencia, California. Riders go from 0 to 100 miles per hour in 7 seconds. Find the acceleration of the roller coaster during this time interval in miles per second squared. Math - Reiny, Monday, ...
September 27, 2010

college algebra
The height of an object thrown upward with an initial velocity of 96 feet per second is given by the formula h = -16t2 + 96t, where t is the time in seconds. How long will it take the object to reach a height of 144 feet?
September 22, 2010

HCS/320
How would you compare and contrast various organizations' methodologies for disseminating health information with internal and external organizations? Improvements that could be made and why?
August 20, 2010

415
Ms. Sue, this question is a portion of the questions required to be answered as a part of the final paper for the Group Behavior in Organizations course at Ashford University. I am actually stuck on the exact same question.
August 20, 2010

physics
In a right triangle ABC, C = 90°, a = 21 ft and b = 76 ft. Solve for all the missing parts using the given information. (Round each answer to the nearest whole number.)
August 11, 2010

Human Services
How might your suggested solution be affected by social policies or government regulations?
July 11, 2010

physics
a bullet of mass of 12 grams is fired into a large block of mass 1.5 kg suspended from light vertical wires. the bullet imbeds in the block and the whole system rises 10 cm. find the velocity of the bullet just before the collision.
June 28, 2010

HSM 260
CheckPoint: Calculating Fixed Costs, Variable Costs, and Break-Even Point for a Program · Calculate the fixed cost, variable costs, and break-even point for the program suggested in Appendix D. BASED ON THE ASSIGNMENT DIRECTIONS FOUND IN THE COURSE MATERIALS FOLDER. &...
May 31, 2010

Math for educators
If a two card hand is dealt from a well-shuffled deck of 52 cards, what is the probability that the hand contains two kings?
May 30, 2010

MTH 157
Given that P(A)=2/9 what are the odds in favor of A occuring?
May 30, 2010

Human Services Management
There are four forecasting techniques described in the text. Briefly describe the merits of each one and identify the one you feel is most beneficial in forecasting for a human service organization.
May 23, 2010

physics
dwls thank you very much
May 6, 2010

physics
How long would our year be if our Sun were two fifths its present mass and the radius of the Earth’s orbit were six times its present value?
May 6, 2010

Algebra
no, it would equal 6.7
May 6, 2010

Chemistry
At a particular temperature, K = 3.75 for the following reaction. SO2(g) + NO2(g) SO3(g) + NO(g) If all four gases had initial concentrations of 0.520 M, calculate the equilibrium concentrations of the gases
May 5, 2010

Math
May 4, 2010

of 28 and a quotient of 8?
May 3, 2010

math
of 28 and a quotient of 8 ?
May 3, 2010

math
of 28 and a quotient of8?
May 3, 2010

math
of 28 and a quotient of 8?
May 3, 2010

math
trapezoidabcd is similar trapezoid efgh the ratio of the perimeter is 7/3. if the area of is 82. what is the area of trapezoid efgh
April 27, 2010

Find the pH of a mixture of .150 M HF(aq) solution and 0.100 M HClO2(aq) HF + H2O <--> F- + H3O+ Ka= 3.5*10^-4 So I will show my attempt below... [HF] [F-] [H3O+] I .150 0 0 C -x +x +x E .15-x x x Ka= [F-][H3O+]/[HF] 3.5*10^-4= x^2/(.150-x) assume x is small so (.150-x...
April 26, 2010

social studies
what was the opinion of americans who opposed the mexican war
April 21, 2010

Chemistry
Calculate the solubility of silver iodide in a 1.0 M sodium cyanide solution. Ksp = 8.5 x 10^-17 for AgI Kform = 2.5 x 10^5 for Ag(CN)2
April 7, 2010

geometry
What has 4 equal sides, and both paris of opposite sides are parallel but it dose not contain a right angle?
March 31, 2010

Pre-Calculus
A piece of plexiglass is in the shape of a semi-circle with radius 2m. Determine the dimensions of the rectangle with the greatest area that can be cut from the piece of plexiglass?
March 28, 2010

Math
House Numbers, at 50 cents each. Mrs. Clarke bought the number 21, which is 2 pieces and therefore costs a dollar. Same with the others.
March 25, 2010

Math
Is it because the only numbers that can go into a prime number are "1" and itself?
March 18, 2010

Math
March 18, 2010

physics
During a particular thunderstorm, the electric potential difference between a cloud and the ground is Vcloud - Vground = 4.3 108 V, with the cloud being at the higher potential. What is the change in an electron's electric potential energy when the electron moves from the ...
March 9, 2010

Calculus
Find the number c that satisfies the conclusion of the Mean Value Theorem. f(x) = x/(x + 4) [1, 8]
March 7, 2010

Chemistry
March 5, 2010

Chemistry
An alpha particle (mass 6.6 x 10^-24 grams) emitted by radium travels at 3.4 x 10^7 plus or minus 0.1 x 10^7 mi/h. (a) What is its de Broglie wavelength (in meters)? (b) Whats uncertainty in its position? for part (a) I got 1.53 meters which said it was wrong on Aris and I got...
March 5, 2010

Math
How would I write this out? The high temp for a day is 6 degrees C. The mean temp for the day, which is the mean of the high and low temps, is -4 degrees C. What is the low temp for the day? Thank you.
March 3, 2010

physics
tanTheta = h/b => b=h/tanTheta =>b= 34ft/tan(17) =>b= 111.2ft 111.2ft
February 27, 2010

Calculus
Find the derivative of y=xsin(2/x)? On web-assign everything that I have tried has been wrong.
February 21, 2010

Physics
When an air capacitor with a capacitance of 300 nF (1 {\rm nF} = 10^{-9}\;{\rm F}) is connected to a power supply, the energy stored in the capacitor is 1.95×10−5 J. While the capacitor is kept connected to the power supply, a slab of dielectric is inserted that ...
February 4, 2010

english
what is needed to combine two sentences with a comma
January 24, 2010

geometry
how do you find the height of an isosceles triangle only knowing the lengths of all three bases? EX: There's isosceles triangle ABC with vertex angle B. AB= 5x-28. BC= 2x+11. AC= x+5
January 15, 2010

geometry
In geometry, can a counterexample be used to determine if a conjecture is false or not?
January 15, 2010

Physics - fluids
A solid cylinder (radius = 0.170 m, height = 0.150 m) has a mass of 7.00 kg. This cylinder is floating in water. Then oil (ñ = 0.866 kg/m3) is poured on top of the water until the situation shown in the drawing results. How much of the height of the cylinder is in the ...
November 24, 2009

geography
I can't find any of the answers in the book, could you please help? 1. The landform occupying the center of the triangle that forms the indian subcontinent is the.. A Deccan Plateau B Western Ghats C Indo- Cangetic Plain D Eastern Ghats 2. Which account of an Azerbaijani ...
November 17, 2009

Algebra
I'm not sure how to factor 3x^3-12x^2+3x. I tried separatring the 3x so that 3x(x+1)(x-4, but I got -3x^3+-12x^2-3x^2+12x. Can you show me where I went wrong and how to properly factor this? Is there a general rule or tip for this sort of factoring with a number to the ...
November 9, 2009

Algebra
Is a function with a fraction (1/4) an even or an odd function? Or can fractions be neither even or odd? I have to declare one or the other, so I'm not sure what to say.
November 9, 2009

Algebra
I have to find the standard form of a quadratic function with the vertex of -1,4 and x intercepts of -3,0 and 1,0. What do I do when I have two x intercepts like this?
November 8, 2009

Math for educators
I was wondering what sort of teacher you are studying to be. I can't help you with this, but I was curious as to what subject area you are trying to get your certification in.
November 8, 2009

Algebra
How come there are no x intercepts for x^2-x+(5/4)? Can you show me why, please?
November 8, 2009

Algebra
When using -b/2a with functions, should I ignore the negative, figure out b/2a and then put a negative around it? Or should I turn 2a into -2a? Or should I go -b/-2(-a)? Thanks for clearing this up!!!
November 8, 2009

Algebra
It's just the number of the problem.
November 8, 2009

Algebra
27-f(x)=1/4x^2-2x-12. Can you show me how to find the vertex and x intercepts, step-by-step? I tried to put it in standard form, with (1/2x-1)^2-13, but my book said that's not the answer. Thanks!
November 8, 2009

Algebra
Where did the 1 come from in the standard form come from? How did the 5/4 become 1 when it was transferred to outside of the parentheses?
November 8, 2009

Algebra
I have to find the vertex, axis of symmetry, and x intercepts of x^2-x+(5/4). I put it in standard form as -(x+-.5)^2+1.5. Thus, the vertex would be .5, 1.5. But the book's answer is 1/2, 1. How did they get this?
November 8, 2009

Algebra
17-Identify the vertex, axis of symmetry and x-intercept(s) of F(x)=(x+5)^2-6. I have no idea how the x intercepts are -5 +/- sq. root 6 and 0. can you show me how this came to be? I factored it so it would be x^2+10x+19, but there's no common factors in ten and 19. Can ...
November 7, 2009

History
I tried googling this, but I couldn't find it. What is the name of the journalist (who was either British or American...I can't remember) who snuck into Saudi Arabia in the early twentieth century and disguised himself as a Muslim since no non-Muslims were allowed in ...
November 5, 2009

Geometry
If a/4=b/7, then a/b=?
October 28, 2009

Its Oh Lay
October 21, 2009

Chem - Stoichiometry
How many grams of sodium carbonate is required for a complete reaction with 1.00g of calcium chloride dihydrate? Help!
October 18, 2009

Chem - Stoichiometry
How many grams of sodium carbonate is required for a complete reaction with 1.00g of calcium chloride dihydrate? Help!
October 17, 2009

UNE
I know...I realized that right after I accidentally posted - that is why there is the CORRECT post and subject right after this one called Stoichiometry. THANKS FOR THE HEADS UP, THOUGH.
October 17, 2009

UNE
How many grams of sodium carbonate is required to have a complete reaction with 1.00g of calcium chloride dihydrate? I can't figure this out...help!
October 17, 2009

Physics
1.66 m/s^2! Thanks
October 10, 2009

Physics
Liz rushes down onto a subway platform to find her train already departing. She stops and watches the cars go by. Each car is 8.60 m long. The first moves past her in 1.75 s and the second in 1.17 s. Find the constant acceleration of the train. I know how to find average ...
October 10, 2009

Physics
A motorist travels at a constant speed of 34.0 m/s through a school zone; exceeding the posted speed limit. A policeman, waits 7.0 s before giving chase at an acceleration of 3.9 m/s2. (a) Find the time required to catch the car, from the instant the car passes the policeman...
October 10, 2009

biology
it is everything that occupies a place in the space
October 6, 2009

Social Studies
how did geography affect the development of African kingdomes?
October 5, 2009

Physics
5.03 m/s^2
October 5, 2009

Physics
14.84 m/s^2
October 5, 2009

biology
mitochondria-hydraulic dam ribosomes-small shops nucleus-town hall endoplasmic reticulum-special carts golgi apparatus- post office protein-widget cell membrane-fence lysosomes-scrap yard nucleolus-carpenter's union
October 4, 2009

Math- calculus
Given f(x) = x ^ 3 - x ^ 2 -4x +4 Find the zeros of f. Write an equation of the line tangent to the graph of f at x = -1 The point (a,b) is on the graph of f and the line tangent to the graph at (a,b) passes through the point (0,-8) which is not of the graph of f. Find a and b...
September 25, 2009

college physics
Two small spheres, each with mass m=3g and charge q, are suspended from a point by threads of length L=0.22m. What is the charge on each sphere if the threads make an angle theta of 15 degrees with the vertical?
September 17, 2009

college physics
There are four charges, each with a magnitude of 2.0uC. Two are postive and two are negative. The charges are fixed to the corners of a 3.0m square, one to each corner, in such a way that the net force on any charge is directed toward the center of the square. Find the ...
September 17, 2009

college physics
Two small spheres, each with mass m=3g and charge q, are suspended from a point by threads of length L=0.22m. What is the charge on each sphere if the threads make an angle theta of 15 degrees with the vertical?
September 17, 2009

Math
Guess my rule? Write a funtion for the function. Input 6 7 8 9 Output 5 5.5 6 6.5
August 24, 2009

Global
Explain how the African European and the Native American cultures blended to form a latin american culture?
May 7, 2009

English
I am having trouble writing a topical outline and expanding it to a sentence for this paper: Marie Curie is best known as the discoverer of the radioactive elements polonium and radium, and is the first person to earn the honor of two Nobel prizes. Her work not only influenced...
May 3, 2009

Math
Thank you Ms. Sue!
April 29, 2009

Math
Your not dividing IN half, but BY half. I did it the way of using fractions. Because half is .5 or 1/2. I have no idea how he got 12 either!
April 29, 2009

Math
Divide 30 by half and add 10. What do you get? I think it is 70, but my friend disagrees. He thinks it's 12.
April 29, 2009

math
But how did you figure it out like that.
April 27, 2009

math
There is a circle that is cut in three slices one slice is (in fractions) 1/3 and one slice is 1/5. What fraction is the other slice. (it is a whole circle.) Can you please tell me how to I can figure this out on my own.
April 27, 2009

Pre Algebra
(h4) 4 (-6x7) (-9x12) the answer is -63x 19
April 2, 2009

Jake was new to Fair Ridge Elementary, and he was big. Jake bullied Tommy when his jeans jacket was too small for him. It stretched tight across his back and the sleeves were too short for his arms. And, Jake is taking his things from the other students. But now Jake and Tommy...
March 30, 2009

Secret Pal Surprises Characters and Setting? It is for my book report. Please tell me the characters (behavioral description) and where's the setting.
March 30, 2009

Eng 102
How can I support my thesis with compelling arguments and counterarguments? Here is my thesis statement? Although many coal industries argue that mountaintop removal coal mining is more cost effective than underground coal mining, MTR is destroying the beautiful mountains and ...
March 25, 2009

1. Pages:
2. <<Prev
3. 1
4. 2
5. 3
6. 4
7. 5
8. 6
9. 7
10. Next>>