Wednesday

December 7, 2016
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**

N/P

*January 27, 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*

**Math For College Readiness**

Thank you very much, Steve :)

*January 9, 2013*

**Math For College Readiness**

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*

**Math For College Readiness**

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*

**Math For College Readiness**

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*

**Math For College Readiness**

Simplify: (3w - 1) / (2w^2 + w - 3) - (2 - w) / (w - 1) - (w) / (1 - w)

*December 18, 2012*

**Math For College Readiness**

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

*December 17, 2012*

**Math For College Readiness**

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**

N/P :)

*October 4, 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*

**math**

lol

*October 3, 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 4TH GRADE**

12 x 5

*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*