Wednesday
December 7, 2016

# Posts by Neil

Total # Posts: 195

Genetics
Obviously, there was no point in history in which the clade that developed into ‘humanity’ consisted of only one female individual. Yet every mitochondrial genome in any current human population can be traced back to a single woman: ‘Mitochondrial Eve’. She...
October 11, 2016

Quantitative Chemistry
Which of the following statements about the reaction, 4 HCl(aq) + MnO2(s) MnCl2(aq) + 2 H2O(l) + 2 Cl2(g), is correct? a.)The manganese atoms are oxidized. b.)The oxygen atoms are reduced. c.) The chlorine atoms are both oxidized and reduced. d.)All of these statements are ...
May 3, 2016

physics
He gave us this in lecture: L = 0.18m Fe = 0.018m M = -260 N = 0.2m Fo = ? M = (-N/Fe)(L-Fe/Fo) Subbed in and I ended up with 6.92x10^-3 m
April 6, 2016

Physics
Don't be at that craic now Orla, you just need to Trappe yourself in the library a bit more often
April 6, 2016

Algebra 2
Is my answer correct? Directions: Determine whether y is a function of x. Problem: x^2+y^2=16 Answer: x^2+y^2+-x^2=16+-x^2 y^2=-x^2+16 y= ±√-x^2+16 y is not a function of x
November 18, 2015

Physics
a speed boat is moving though the water at a speed of 28 m/s when the engine stalls. the boat comes to a halt over 120m, what is the time it takes to stop and what is the acceleration. im trying to figure it out but i don't know what kinematic equation to use
August 27, 2015

algebra
Assume the national debt D increases at an annual rate of 5% and that the debt in 2000 was 57 billion dollars. This means that D = 57(1.05t ), where t is the number of years after 2000. In what year will the debt have doubled?
May 10, 2015

matrices
Given B = 0 1 0 0 0 1 1 0 0 , show that B^3 = I
May 10, 2015

phil
it s laborious using a right triangle theorem, however if sine and cosine law for oblique triangle were discussed by the instructor, it s an easy work.
March 20, 2015

Physics
A mouse sits on a turntable 14.8 cm from the center. The coefficient of static friction is 0.49. The angular velocity increases steadily from zero. At what angular velocity does the mouse begin to slide? I believe that the max frictional force can be is momentum x normal force...
October 24, 2014

Phyiscs
if the brakes of an automobile are applied from 70km/h to 35km/h, how many meters does the car travel during this deceleration?
July 11, 2014

Math
Sin n = 4 / 5. Remember that the formula for sin would be Opposite / Hypotenuse. So: Sin n = Opposite / Hypotenuse = 4 / 5 Sine n = Opposite / 25 = 4 / 5 5 Opposite = 100 5 / 5 Opposite = 100 / 5 Opposite = 20. Now what we do is use Pythagorean Theorem to find the length of ...
June 6, 2014

Chemistry
I agree.
June 2, 2014

BIOLOGY
What, like high blood pressure and high cholesterol?
April 15, 2014

Algebra
I doubt it. Set 3 and 5 into a fraction, like t / 3 + t / 5 = 1. Multiply the denominator, to give you 15. You'll be left with 5t + 3t = 15 8t = 15 8t / 8 = 15 / 8 t = 1.875 = 1.9 min., or 1 min. and 55 seconds
April 15, 2014

English
I'd say C*
April 15, 2014

English
It'd say C.
April 15, 2014

Physics
An object is 14 cm in front of a diverging lens that has a focal length of -7.9 cm. How far in front of the lens should the object be placed so that the size of its image is reduced by a factor of 1.9?
April 14, 2014

Physics
A series circuit contains only a resistor and an inductor. The voltage V of the generator is fixed. If R = 15 and L = 5.6 mH, find the frequency at which the current is one-half its value at zero frequency. ?? Hz Thanks!
March 24, 2014

Math
Thank you very much, Steve.
January 28, 2014

Math
g(n) = n^3 - 5n^2 ; Find g(-4n)
January 28, 2014

math---help! 1 question
y = x + 1 2y = 2x + 2 Now substitute y = x + 1 into the equation 2y = 2x + 2
January 27, 2014

Math
6 (5 / 6) = 6 (0.83333333333) = 5 lbs.
January 27, 2014

Math
Thank you very much Ms. Sue. You helped a lot.
January 27, 2014

Math
A. 9.4
January 27, 2014

Math
At a certain construction site, there is a pile containing 55 tons of sand. Four trucks, each of which holds 11.4 tons of sand, are filled from this pile. How many tons of sand remain in the pile? A. 9.4 B. 16.2 C. 20.8 D. 32.2 E. 43.6
January 27, 2014

goverment
D. A president is subject to the rule of law
January 20, 2014

Computer Science
How would I determine heapsize for 16.0 GB RAM? heapsize <kilobytes> - Specifies the amount of heap (or free store -cache, an area of memory used for dynamic memory allocation) the engine will use. So to do the calculation, will I have to do 16.0 x 1024 first to give me ...
December 28, 2013

math
amount of matter in an object
September 29, 2013

math
Split 597 into three parts such that these are in A.P. and the product of the two smallest parts is 796.
September 28, 2013

Physics ASAP
An object is thrown from a height of 8.0m, with a horizontal velocity of 28.0m/s. How far will this object travel horizontally before hitting the ground?
May 28, 2013

Algebra
Simplify the radical. Assume that all variables represent positive real numbers. cube root (120m^20 n^2 / mn^14)
February 21, 2013

Assisting With Medications
Your client is recieving IV therapy. List 2 observations under each of the following categories that you would repoort to your supervisor as being a problem. a) site (local) b) client (systemic)
February 20, 2013

Physics
When point charges q1 = +3.1 ìC and q2 = +5.1 ìC are brought near each other, each experiences a repulsive force of magnitude 0.54 N. Determine the distance between the charges.
February 18, 2013

geometry!
The above answer is incorrect. Its is: 360-(108+90)= 360-198=162
February 18, 2013

Thank you very much, Steve :)
January 9, 2013

1. (8a / 3b^2) / (6ab / 5) 2. (42x^2 + 14x) / (x - 7) / (2 + 6x / 21 - 3x) 3. (9 + 3 / x) / (x / 4 + 1 /12)
January 9, 2013

Simplify the Complex Fractions 1. 8a / 3b^2 / 6ab /5 2. 42x^2 + 14x / x - 7 / 2 + 6x / 21 - 3x 3. 9 + 3 / x / x / 4 + 1 /12 4. (x^-1 + x^-2)divided by (9x^-2) Ans. #1: 20 / 9 Ans. #2: 42x^2 + 6x + 4 / -2x + 14 Ans. #3: 144 / x / 3x + 1 I don't know how to do #4
January 9, 2013

The only work so far I know to do is, =(3w - 1) / (w^2 + w - 6) - (2 - w) /(w - 1) - (w) / (w - 1) = (3w - 1) / (w - 1) (2w + 3) -(w + 2) / (w - 1) - (w) / (w - 1) I don't know what to do from here.
December 18, 2012

Simplify: (3w - 1) / (2w^2 + w - 3) - (2 - w) / (w - 1) - (w) / (1 - w)
December 18, 2012

Thank you very much. Yeah, I should've added the parenthesis to make it look familiar.
December 17, 2012

Simplify: y - 3 / y - 2 - y + 1 / 2y - 5 + -4y + 7 / 2y^2 - 9y + 10
December 17, 2012

Chemistry
First since there
December 12, 2012

Physics
A block of 1.0 kg rests on the gap between two boards. Putty is throw from the underside of the block and makes contact with it. The Putty has a velocity of 15 m/s and weighs 0.3kg. Calculate the max height the block travels after contact with the putty, assuming they stick ...
October 16, 2012

Physics
Two blocks rest on two frictionless ramps. They are connected at the apex of each ramp by a string and pulley. The angle of ramp A with the ground is 45 degrees. Mass of Block B (on Ramp B) is 2 times that of Block A. What does the angle of Ramp B with the ground have to be in...
October 16, 2012

Physics
Two carts of identical mass (500 kg). One is traveling south and the other is traveling east. They collide (inelastic collision) and slide 3 meters, 30 degrees south of the east. The total friction force is 10,000N. Calculate the initial velocities of each.
October 16, 2012

Env. Sci.
Explain how an organism can be dead, yet still considered a biotic factor.
October 9, 2012

social studies
Yup Yup! They are the title of the map, compass direction, key or legend, and scale. Hopefully this helps.
October 4, 2012

British Lit
It's pretty much Indo-European Language. The Britons spoke Celtic, while the Romans spoke Latin.
October 4, 2012

Math
Instructions: Solve the systems.
October 4, 2012

Math
Solving Inconsistent Systems and Dependent Systems 1. 3x - 2y= 1 -6x + 4y= -2 2. 6y=14 - 4x 2x= -3x - 7
October 4, 2012

Algebra
(2 + x) > 20.5 (2 + (16/9)x) <42 x < 18.5 x < 22.5
October 3, 2012

Equivalent Fractions
Bro, you pretty much have to divide it and see if they are equal. Just divide 1/2 and 5/10, they both are the same answer.
October 3, 2012

Equivalent Fractions
1/2= 5/10 <----- True 3/4= 12/16 <----- True 7/8= 21/24 <----- True 3/7= 15/35 <----- True 1/20= 4/40 <------ False
October 3, 2012

Math
Solve by using the substitution method. (Please keep fractions as they are, don't convert to decimal.) y= 1/7x + 3 x - 7y= -4
October 3, 2012

Math
5( 17 + 3 + 4 + 3) 5( 20 + 4 + 3) 5(20 + 7) 5( 140)700
October 3, 2012

Martin Luther King Junior
He pretty much followed Mohandas "Mahatma" Gandhi who wanted to gain freedom without any sort of violence.
October 3, 2012

Math
Hm... so, 0=0 is the only answer for #3? You don't have to do anything else? Like plugging in for the second equation or something.
October 3, 2012

Math
Solve by using the subatitution method. (Please keep fractions as they are, don't convert to decimal.) 1. y= -3x - 1 2x - 3y= -8 2. 1 + 3y= 10 5x + 2y= 6 3. 2x - 6y= -2 x= 3y - 1 4. y= 1/7x + 3 x - 7y= -4
October 3, 2012

Math
Solve the system by using the substitution method. y= 3/4x - 4 -x + 2y= -6
October 2, 2012

science
if two carbon atoms are joined by a triple bond how many other atoms can each carbon atom bond with
October 1, 2012

History
The Norman King
October 1, 2012

science
if two carbon atoms are joined by a triple bond how many other atoms can each carbon atom bond with
October 1, 2012

Math
Determine if the ordered pair is a solution to the system. -5x - 7y= 4 y= 1/2 x - 1 a. (2,2) b. (2, -2)
October 1, 2012

Math
Thank you, Steve. I was thinking to do that, but I thought I was wrong.
September 25, 2012

Math
Find the function values given f(x)= 6x^2 - 4. f(0)
September 25, 2012

Math
accounting course*
September 18, 2012

Math
Ally loves the beach and decides to spend the summer selling various ice cream products on the beach. From her account course, she knows that her total cost is calculated as Total Cost= Fixed Cost + Various Cost She estimates that her fixed cost for the summer season is \$50 ...
September 18, 2012

English
The total suprised and pleased us.
September 17, 2012

History
um... They helped eachother out, learned stuff from the Indians like about growing corns and stuff like that. While, the Puritans were religious Christians from England who escaped England for religious freedom. They landed in Plymouth and settled there... they also settled ...
September 17, 2012

History
The Mayflower Compact. This Compact promised to create a “civil Body Politick” governed by elected officials and “just and equal laws.” It also swore allegiance to the English king
September 17, 2012

History
It pretty much set up the first self-govern colony in America.
September 17, 2012

Math
Write an equation of the line that passes through the points (-8, -1) and (-5, 9).
September 17, 2012

Math
Two points for each of two lines are given. Determine if the lines are parallel, perpendicular, or neither. L1: (4, -6) and (3, -2) L2: (3, -1) and (7, 0)
September 11, 2012

Math
Determine if (-3, 4) is a solution to 5x= -15.
September 10, 2012

science
how did the 2007 dcyse create a fire tornado
September 8, 2012

Math
Thank You!There was supposed to be a greater than or equal to sign and the 3(2x - 4) and before the 0. It messed up once I posted it.
August 30, 2012

Math
Solve the compound inequalities. Write the solutions in interval notation. Graph your solution on a number line. 1. 2(3x + 1)< -10 or 3(2x - 4) ¡Ý 0 The or means union of these inequalities. 2. 5(p + 3) + 4 > p - 1 or 4(p - 1) + 2 > p + 8
August 30, 2012

Math
1. Let f(x)= x^2 - 5 and g(x)= 3x^2. Find g(f(x)). A. 3x^4 - 30x^2 + 75 B. -3x^4 - 15 C. 9x^4 D. -3x^4 - 4 2. Let f(x)= x^2 - 4 and g(x)= -3x^2. Find f(g(x)). F. -3x^4 + 12 G. -3x^4 + 24x^2 - 48 H. 9x^4 - 4 I. -3x^4 - 4
June 7, 2012

Math
I think you're doing it wrong, because I am not getting those answers. I got answer choices.
June 7, 2012

Math
1.Let f(x)= x^2 - 5 and g(x)= 3x^2. Find g(f(x)). 2. Let f(x)= x^2 - 4 and g(x) -3x^2. Find f(g(x)).
June 7, 2012

Math
1. Let f(x)= x^2 - 5 and g(x)= 3x^2. Find g(f(x)). 2. Let f(x)= x^2 - 4 and g(x)= -3x^2. Find f(g(x)).
June 2, 2012

English
It does. The storm is referring to the "British, and their "Naval Fleet".
May 31, 2012

English
I'm sure it's d.
May 31, 2012

English
So I'm wrong?
May 31, 2012

English
Henry*
May 31, 2012

English
It's from Patrick Henrey's speech to the American Colonists in Virginia during the American Revolutionary War Era.
May 31, 2012

English
In "Speech to the Virginia Convention" there is a motif of: a. Storm imagery b. Light imagery c. Snow imagery d. Storm & Light imagery e. Storm & Snow imagery
May 31, 2012

Math
5^5 f. Sorry the f is separate from the fifth power.
May 30, 2012

Math
Multiply the expressions. Simplify the result. d^2/ ef * 5e^5f/ 4d
May 30, 2012

math
V= 3.14 x 2.5^2 V= 3.14 x 6.25 v= 19.625 / 3 V= 6.514 ins.^3
May 30, 2012

Math
Find the sum of the arithmetic series. 20 (Sigma Sign) 2n + 7 x= 1 Formula: Sn= a1 (1 - r^n / 1 - r)
May 29, 2012

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